Trial Outcomes & Findings for A Study to Evaluate EDP 938 Regimens in Children With RSV (NCT NCT04816721)

NCT ID: NCT04816721

Last Updated: 2025-07-28

Results Overview

Plasma concentrations of EDP-938 were assessed at the designated time points.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

99 participants

Primary outcome timeframe

3 hours post-dose on Day 1 and pre-dose on Day 2 (hospitalized participants only), Day 3, and Day 5

Results posted on

2025-07-28

Participant Flow

A total of 99 participants were enrolled at 78 sites across 15 countries between April 2022 and August 2024.

Participants were randomized 2:1 (Part 1) or 4:1 (Part 2) to EDP-938:placebo.

Participant milestones

Participant milestones
Measure
Part 1, Group 1: EDP-938
Participants aged ≥ 6 months to \< 12 months received oral 5 mg/kg doses of EDP-938 once daily (QD) from Day 1 to Day 5 of the study. Participants aged ≥ 12 months to ≤ 36 months received oral 5 mg/kg or 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1, Group 2: EDP-938
Participants aged ≥ 28 days to \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1, Group 1: Placebo
Participants aged ≥ 6 months to ≤ 36 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 1, Group 2: Placebo
Participants aged between ≥ 28 days and \< 6 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 1: EDP-938
Participants aged ≥ 6 months to \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study. Participants aged ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 2: EDP-938
Participants aged ≥ 28 days to \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 1: Placebo
Participants aged between ≥ 6 months and ≤ 36 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 2: Placebo
Participants aged between ≥ 28 days and \< 6 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Overall Study
STARTED
22
14
11
6
20
16
6
4
Overall Study
Treated With 5 mg/kg EDP-938
14
13
0
0
8
15
0
0
Overall Study
Treated With 7.5 mg/kg EDP-938
9
0
0
0
11
0
0
0
Overall Study
Treated With Placebo
0
0
11
6
0
0
6
4
Overall Study
COMPLETED
22
12
11
4
19
15
6
4
Overall Study
NOT COMPLETED
0
2
0
2
1
1
0
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Part 1, Group 1: EDP-938
Participants aged ≥ 6 months to \< 12 months received oral 5 mg/kg doses of EDP-938 once daily (QD) from Day 1 to Day 5 of the study. Participants aged ≥ 12 months to ≤ 36 months received oral 5 mg/kg or 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1, Group 2: EDP-938
Participants aged ≥ 28 days to \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1, Group 1: Placebo
Participants aged ≥ 6 months to ≤ 36 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 1, Group 2: Placebo
Participants aged between ≥ 28 days and \< 6 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 1: EDP-938
Participants aged ≥ 6 months to \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study. Participants aged ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 2: EDP-938
Participants aged ≥ 28 days to \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 1: Placebo
Participants aged between ≥ 6 months and ≤ 36 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 2: Placebo
Participants aged between ≥ 28 days and \< 6 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Overall Study
Withdrawal by Subject
0
2
0
1
1
0
0
0
Overall Study
Miscellaneous
0
0
0
0
0
1
0
0
Overall Study
Lost to Follow-up
0
0
0
1
0
0
0
0

Baseline Characteristics

A Study to Evaluate EDP 938 Regimens in Children With RSV

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Part 1, Group 1: EDP-938
n=23 Participants
Participants aged ≥ 6 months to \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study. Participants aged ≥ 12 months to ≤ 36 months received oral 5 mg/kg or 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1, Group 2: EDP-938
n=13 Participants
Participants aged ≥ 28 days to \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1, Group 1: Placebo
n=10 Participants
Participants aged between ≥ 6 months and ≤ 36 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 1, Group 2: Placebo
n=6 Participants
Participants aged between ≥ 28 days and \< 6 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 1: EDP-938
n=19 Participants
Participants aged ≥ 6 months to \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study. Participants aged ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 2: EDP-938
n=15 Participants
Participants aged ≥ 28 days to \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 1: Placebo
n=6 Participants
Participants aged between ≥ 6 months and ≤ 36 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 2, Group 2: Placebo
n=4 Participants
Participants aged between ≥ 28 days and \< 6 months received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Total
n=96 Participants
Total of all reporting groups
Age, Customized
≥ 28 days to < 3 months
0 Participants
n=99 Participants
9 Participants
n=107 Participants
0 Participants
n=206 Participants
4 Participants
n=7 Participants
0 Participants
n=31 Participants
7 Participants
n=30 Participants
0 Participants
n=3 Participants
2 Participants
n=6 Participants
22 Participants
n=114 Participants
Age, Customized
≥ 3 months to < 6 months
0 Participants
n=99 Participants
4 Participants
n=107 Participants
0 Participants
n=206 Participants
2 Participants
n=7 Participants
0 Participants
n=31 Participants
8 Participants
n=30 Participants
0 Participants
n=3 Participants
2 Participants
n=6 Participants
16 Participants
n=114 Participants
Age, Customized
≥ 6 months to < 12 months
7 Participants
n=99 Participants
0 Participants
n=107 Participants
4 Participants
n=206 Participants
0 Participants
n=7 Participants
8 Participants
n=31 Participants
0 Participants
n=30 Participants
3 Participants
n=3 Participants
0 Participants
n=6 Participants
22 Participants
n=114 Participants
Age, Customized
≥ 12 months to ≤ 36 months
16 Participants
n=99 Participants
0 Participants
n=107 Participants
6 Participants
n=206 Participants
0 Participants
n=7 Participants
11 Participants
n=31 Participants
0 Participants
n=30 Participants
3 Participants
n=3 Participants
0 Participants
n=6 Participants
36 Participants
n=114 Participants
Sex: Female, Male
Female
12 Participants
n=99 Participants
5 Participants
n=107 Participants
3 Participants
n=206 Participants
5 Participants
n=7 Participants
11 Participants
n=31 Participants
7 Participants
n=30 Participants
5 Participants
n=3 Participants
1 Participants
n=6 Participants
49 Participants
n=114 Participants
Sex: Female, Male
Male
11 Participants
n=99 Participants
8 Participants
n=107 Participants
7 Participants
n=206 Participants
1 Participants
n=7 Participants
8 Participants
n=31 Participants
8 Participants
n=30 Participants
1 Participants
n=3 Participants
3 Participants
n=6 Participants
47 Participants
n=114 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants
n=99 Participants
3 Participants
n=107 Participants
3 Participants
n=206 Participants
2 Participants
n=7 Participants
6 Participants
n=31 Participants
6 Participants
n=30 Participants
3 Participants
n=3 Participants
3 Participants
n=6 Participants
38 Participants
n=114 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
11 Participants
n=99 Participants
10 Participants
n=107 Participants
7 Participants
n=206 Participants
4 Participants
n=7 Participants
12 Participants
n=31 Participants
9 Participants
n=30 Participants
3 Participants
n=3 Participants
1 Participants
n=6 Participants
57 Participants
n=114 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
1 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
0 Participants
n=6 Participants
1 Participants
n=114 Participants
Race/Ethnicity, Customized
Asian
2 Participants
n=99 Participants
2 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
1 Participants
n=31 Participants
3 Participants
n=30 Participants
0 Participants
n=3 Participants
1 Participants
n=6 Participants
9 Participants
n=114 Participants
Race/Ethnicity, Customized
Black or African American
3 Participants
n=99 Participants
0 Participants
n=107 Participants
5 Participants
n=206 Participants
2 Participants
n=7 Participants
3 Participants
n=31 Participants
2 Participants
n=30 Participants
0 Participants
n=3 Participants
0 Participants
n=6 Participants
15 Participants
n=114 Participants
Race/Ethnicity, Customized
White
18 Participants
n=99 Participants
11 Participants
n=107 Participants
3 Participants
n=206 Participants
2 Participants
n=7 Participants
12 Participants
n=31 Participants
10 Participants
n=30 Participants
4 Participants
n=3 Participants
2 Participants
n=6 Participants
62 Participants
n=114 Participants
Race/Ethnicity, Customized
Other
0 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
1 Participants
n=7 Participants
2 Participants
n=31 Participants
0 Participants
n=30 Participants
2 Participants
n=3 Participants
0 Participants
n=6 Participants
6 Participants
n=114 Participants
Race/Ethnicity, Customized
Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
1 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
1 Participants
n=6 Participants
3 Participants
n=114 Participants
Race/Ethnicity, Customized
Unknown
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
1 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
0 Participants
n=6 Participants
1 Participants
n=114 Participants
Hospitalization Status on Day 1
Yes
16 Participants
n=99 Participants
12 Participants
n=107 Participants
8 Participants
n=206 Participants
5 Participants
n=7 Participants
17 Participants
n=31 Participants
12 Participants
n=30 Participants
4 Participants
n=3 Participants
3 Participants
n=6 Participants
77 Participants
n=114 Participants
Hospitalization Status on Day 1
No
7 Participants
n=99 Participants
1 Participants
n=107 Participants
2 Participants
n=206 Participants
1 Participants
n=7 Participants
2 Participants
n=31 Participants
3 Participants
n=30 Participants
2 Participants
n=3 Participants
1 Participants
n=6 Participants
19 Participants
n=114 Participants

PRIMARY outcome

Timeframe: 3 hours post-dose on Day 1 and pre-dose on Day 2 (hospitalized participants only), Day 3, and Day 5

Population: Pharmacokinetic (PK) Population: Included all participants in Part 1 who received one full dose of study drug and had samples with quantifiable plasma levels to allow for estimation of PK parameters. Per protocol, data were analyzed per age group and dose received.

Plasma concentrations of EDP-938 were assessed at the designated time points.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=9 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=4 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
n=7 Participants
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
n=7 Participants
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
n=9 Participants
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: Concentrations of EDP-938 in Plasma
Day 1
1132.222 ng/mL
Standard Deviation 397.4289
1989.500 ng/mL
Standard Deviation 1331.5646
1819.286 ng/mL
Standard Deviation 809.9508
1420.000 ng/mL
Standard Deviation 604.8140
1428.250 ng/mL
Standard Deviation 817.4801
Part 1: Concentrations of EDP-938 in Plasma
Day 2
368.400 ng/mL
Standard Deviation 149.8741
399.250 ng/mL
Standard Deviation 423.9515
502.350 ng/mL
Standard Deviation 379.6487
249.675 ng/mL
Standard Deviation 294.5416
238.900 ng/mL
Standard Deviation 239.0287
Part 1: Concentrations of EDP-938 in Plasma
Day 3
448.000 ng/mL
Standard Deviation 229.1026
346.000 ng/mL
Standard Deviation 54.7449
97.533 ng/mL
Standard Deviation 64.9043
116.250 ng/mL
Standard Deviation 43.4871
Part 1: Concentrations of EDP-938 in Plasma
Day 5
528.563 ng/mL
Standard Deviation 284.6010
201.750 ng/mL
Standard Deviation 98.6623
431.429 ng/mL
Standard Deviation 637.5664
252.043 ng/mL
Standard Deviation 329.2155
180.622 ng/mL
Standard Deviation 158.3268

PRIMARY outcome

Timeframe: Day 1 to Day 28

Population: Safety Population: Included all participants in Part 1 who received any dose (including partial doses) of any study drug. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

TEAEs were defined as any event, side effect, or untoward medical occurrence in a participant enrolled in a clinical study whether or not it was considered to have a causal relationship to the study drug and first occurred or worsened during the post-baseline phase compared to baseline. Clinically significant changes from baseline in vital signs and clinical laboratory results were reported as TEAEs.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=36 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=16 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: Number of Participants Who Experienced a Treatment-emergent Adverse Event (TEAE)
14 Participants
9 Participants

PRIMARY outcome

Timeframe: Baseline and pre-dose on Days 3, 5, 9, and 14

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

Daily change from baseline in RSV shedding was defined as the daily change from baseline in RSV ribonucleic acid (RNA) viral load and was measured using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) from nasal swabs. The model included treatment group (EDP-938, placebo) and Day (3, 5, 9, and 14) as fixed effect, associated baseline, and treatment group by Day interaction term as factors. An unstructured covariance matrix was imposed. The Satterthwaite approximation is used to estimate the denominator degrees of freedom.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=34 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=10 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Model-Adjusted Daily Change From Baseline in Respiratory Syncytial Virus (RSV) Shedding in Nasal Swab Samples
Day 3
-1.33 log10 copies/mL
Standard Error 0.297
-0.37 log10 copies/mL
Standard Error 0.533
Part 2: Model-Adjusted Daily Change From Baseline in Respiratory Syncytial Virus (RSV) Shedding in Nasal Swab Samples
Day 5
-3.04 log10 copies/mL
Standard Error 0.354
-1.62 log10 copies/mL
Standard Error 0.627
Part 2: Model-Adjusted Daily Change From Baseline in Respiratory Syncytial Virus (RSV) Shedding in Nasal Swab Samples
Day 9
-3.65 log10 copies/mL
Standard Error 0.381
-3.22 log10 copies/mL
Standard Error 0.680
Part 2: Model-Adjusted Daily Change From Baseline in Respiratory Syncytial Virus (RSV) Shedding in Nasal Swab Samples
Day 14
-4.87 log10 copies/mL
Standard Error 0.388
-5.71 log10 copies/mL
Standard Error 0.677

PRIMARY outcome

Timeframe: Baseline and pre-dose on Days 3, 5, 9, and 14

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

Daily change from baseline in RSV shedding was defined as the daily change from baseline in RSV RNA viral load and was measured using RT-qPCR from nasal swabs. The model included treatment group (EDP-938, placebo) and Day (3, 5, 9, and 14) as fixed effect, associated baseline, and treatment group by Day interaction term as factors. An unstructured covariance matrix was imposed.The Satterthwaite approximation is used to estimate the denominator degrees of freedom.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=69 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=27 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Model-Adjusted Daily Change From Baseline in RSV Shedding in Nasal Swab Samples
Day 3
-1.53 log10 copies/mL
Standard Error 0.192
-1.36 log10 copies/mL
Standard Error 0.331
Pooled Population: Model-Adjusted Daily Change From Baseline in RSV Shedding in Nasal Swab Samples
Day 5
-2.95 log10 copies/mL
Standard Error 0.230
-2.62 log10 copies/mL
Standard Error 0.392
Pooled Population: Model-Adjusted Daily Change From Baseline in RSV Shedding in Nasal Swab Samples
Day 9
-4.57 log10 copies/mL
Standard Error 0.275
-3.87 log10 copies/mL
Standard Error 0.475
Pooled Population: Model-Adjusted Daily Change From Baseline in RSV Shedding in Nasal Swab Samples
Day 14
-5.01 log10 copies/mL
Standard Error 0.278
-5.35 log10 copies/mL
Standard Error 0.462

SECONDARY outcome

Timeframe: Pre-dose on Day 1 through pre-dose on Days 3, 5, 9 and 14

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

The RSV RNA viral load was measured using RT-qPCR from nasal swabs. The AUC was calculated using the trapezoid rule. The AUC was calculated based on all available assessments collected on Days 1, 3, 5, 9 and 14 and the actual date/time of each assessment was used for the calculation.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=34 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=12 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
n=29 Participants
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
n=9 Participants
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1 and Part 2: Area Under the Curve (AUC) for RSV RNA Viral Load
Day 1 through Day 9
36.03 log10 copies/mL*Days
Standard Deviation 16.229
35.20 log10 copies/mL*Days
Standard Deviation 17.156
37.00 log10 copies/mL*Days
Standard Deviation 13.652
40.39 log10 copies/mL*Days
Standard Deviation 13.371
Part 1 and Part 2: Area Under the Curve (AUC) for RSV RNA Viral Load
Day 1 through Day 3
17.80 log10 copies/mL*Days
Standard Deviation 4.522
17.26 log10 copies/mL*Days
Standard Deviation 4.691
17.15 log10 copies/mL*Days
Standard Deviation 4.663
16.91 log10 copies/mL*Days
Standard Deviation 3.266
Part 1 and Part 2: Area Under the Curve (AUC) for RSV RNA Viral Load
Day 1 through Day 5
25.54 log10 copies/mL*Days
Standard Deviation 8.301
24.55 log10 copies/mL*Days
Standard Deviation 8.457
24.76 log10 copies/mL*Days
Standard Deviation 7.914
26.22 log10 copies/mL*Days
Standard Deviation 7.069
Part 1 and Part 2: Area Under the Curve (AUC) for RSV RNA Viral Load
Day 1 through Day 14
42.85 log10 copies/mL*Days
Standard Deviation 24.990
44.16 log10 copies/mL*Days
Standard Deviation 25.056
45.49 log10 copies/mL*Days
Standard Deviation 21.109
42.17 log10 copies/mL*Days
Standard Deviation 19.864

SECONDARY outcome

Timeframe: Baseline (Pre-dose on Day 1) through pre-dose on Days 3, 5, 9 and 14

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

The RSV RNA viral load was measured using RT-qPCR from nasal swabs. The AUC was calculated using the trapezoid rule. The AUC was calculated based on all available assessments collected on Days 1, 3, 5, 9 and 14 and the actual date/time of each assessment was used for the calculation. The model included treatment group (EDP-938, placebo) and Day (3, 5, 9, and 14) as fixed effect, associated baseline, and treatment group by day interaction term as factors. An unstructured covariance matrix was imposed. The Satterthwaite approximation was used to estimate the denominator degrees of freedom.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=69 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=27 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: AUC of Change From Baseline in RSV RNA Viral Load
Day 1 through Day 3
-1.53 log10 copies/mL*Days
Standard Error 0.192
-1.36 log10 copies/mL*Days
Standard Error 0.331
Pooled Population: AUC of Change From Baseline in RSV RNA Viral Load
Day 1 through Day 5
-6.00 log10 copies/mL*Days
Standard Error 0.540
-5.33 log10 copies/mL*Days
Standard Error 0.930
Pooled Population: AUC of Change From Baseline in RSV RNA Viral Load
Day 1 through Day 9
-21.04 log10 copies/mL*Days
Standard Error 1.319
-18.32 log10 copies/mL*Days
Standard Error 2.272
Pooled Population: AUC of Change From Baseline in RSV RNA Viral Load
Day 1 through Day 14
-45.00 log10 copies/mL*Days
Standard Error 2.105
-41.36 log10 copies/mL*Days
Standard Error 3.619

SECONDARY outcome

Timeframe: Baseline to pre-dose on Days 3, 5, 9, and Day 14

Population: Efficacy Population: Included all participants in Part 1 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

Daily change from baseline in RSV shedding in nasal swab samples was defined as the absolute daily change from baseline in RSV RNA viral load and measured using RT-qPCR from nasal swabs.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=34 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=12 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: Daily Change From Baseline in RSV Shedding in Nasal Swab Samples
Day 3
-1.68 log10 copies/mL
Standard Deviation 1.239
-2.17 log10 copies/mL
Standard Deviation 1.948
Part 1: Daily Change From Baseline in RSV Shedding in Nasal Swab Samples
Day 5
-2.91 log10 copies/mL
Standard Deviation 1.634
-3.44 log10 copies/mL
Standard Deviation 1.585
Part 1: Daily Change From Baseline in RSV Shedding in Nasal Swab Samples
Day 9
-5.34 log10 copies/mL
Standard Deviation 2.338
-4.41 log10 copies/mL
Standard Deviation 1.897
Part 1: Daily Change From Baseline in RSV Shedding in Nasal Swab Samples
Day 14
-5.11 log10 copies/mL
Standard Deviation 2.378
-5.15 log10 copies/mL
Standard Deviation 2.118

SECONDARY outcome

Timeframe: Pre-dose on Days 3, 5, 9 and 14

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Included only participants with detectable viral load at baseline and non-missing viral load assessment at the respective visit and was used as a denominator in the percentage population.

The RSV RNA viral load was measured using RT-qPCR from nasal swabs.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=34 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=12 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
n=28 Participants
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
n=9 Participants
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1 and Part 2: Percentage of Participants With RSV RNA Viral Load Below the Limit of Detection (LOD)
Day 3
0 percentage of participants
Interval 0.0 to 10.28
8.3 percentage of participants
Interval 0.21 to 38.48
3.6 percentage of participants
Interval 0.09 to 18.35
0 percentage of participants
Interval 0.0 to 33.63
Part 1 and Part 2: Percentage of Participants With RSV RNA Viral Load Below the Limit of Detection (LOD)
Day 5
12.1 percentage of participants
Interval 3.4 to 28.2
16.7 percentage of participants
Interval 2.09 to 48.41
22.2 percentage of participants
Interval 8.62 to 42.26
0 percentage of participants
Interval 0.0 to 33.63
Part 1 and Part 2: Percentage of Participants With RSV RNA Viral Load Below the Limit of Detection (LOD)
Day 9
62.5 percentage of participants
Interval 43.69 to 78.9
36.4 percentage of participants
Interval 10.93 to 69.21
28.0 percentage of participants
Interval 12.07 to 49.39
25.0 percentage of participants
Interval 3.19 to 65.09
Part 1 and Part 2: Percentage of Participants With RSV RNA Viral Load Below the Limit of Detection (LOD)
Day 14
61.3 percentage of participants
Interval 42.19 to 78.15
58.3 percentage of participants
Interval 27.67 to 84.83
63.0 percentage of participants
Interval 42.37 to 80.6
88.9 percentage of participants
Interval 51.75 to 99.72

SECONDARY outcome

Timeframe: Pre-dose on Days 3, 5, 9 and 14

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Included only participants with detectable viral load at baseline and non-missing viral load assessment at the respective visit and was used as a denominator in the percentage population.

The RSV RNA viral load was measured using RT-qPCR from nasal swabs.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=62 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=21 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Percentage of Participants With RSV RNA Viral Load Below the LOD
Day 3
1.6 percentage of participants
Interval 0.04 to 8.66
4.8 percentage of participants
Interval 0.12 to 23.82
Pooled Population: Percentage of Participants With RSV RNA Viral Load Below the LOD
Day 5
16.7 percentage of participants
Interval 8.29 to 28.52
9.5 percentage of participants
Interval 1.17 to 30.38
Pooled Population: Percentage of Participants With RSV RNA Viral Load Below the LOD
Day 9
47.4 percentage of participants
Interval 33.98 to 61.03
31.6 percentage of participants
Interval 12.58 to 56.55
Pooled Population: Percentage of Participants With RSV RNA Viral Load Below the LOD
Day 14
62.1 percentage of participants
Interval 48.37 to 74.49
71.4 percentage of participants
Interval 47.82 to 88.72

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

Time to RSV RNA viral load being undetectable was calculated as: first date of RSV RNA viral load target not detected (TND) after which no further samples had detectable RSV RNA viral load - date of first dose.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=34 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=14 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
n=29 Participants
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
n=9 Participants
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1 and Part 2: Time to RSV RNA Viral Load Being Undetectable
10.59 days
Standard Deviation 3.661
12.33 days
Standard Deviation 3.018
12.46 days
Standard Deviation 3.235
12.19 days
Standard Deviation 3.040

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

Time to RSV RNA viral load being undetectable was calculated as: first date of RSV RNA viral load TND after which no further samples had detectable RSV RNA viral load - date of first dose.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=63 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=23 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Time to RSV RNA Viral Load Being Undetectable
11.45 days
Standard Deviation 3.570
12.27 days
Standard Deviation 2.958

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Safety Population: Included all participants in Part 2 who received any dose (including partial doses) of any study drug. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

TEAEs were defined as any event, side effect, or untoward medical occurrence in a participant enrolled in a clinical study whether or not it was considered to have a causal relationship to the study drug and first occurred or worsened during the post-baseline phase compared to baseline. Clinically significant changes from baseline in vital signs and clinical laboratory results were reported as TEAEs.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=34 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=10 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Number of Participants Who Experienced a TEAE
14 Participants
4 Participants

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Safety Population: Included all participants who received any dose (including partial doses) of any study drug. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

TEAEs were defined as any event, side effect, or untoward medical occurrence in a participant enrolled in a clinical study whether or not it was considered to have a causal relationship to the study drug and first occurred or worsened during the post-baseline phase compared to baseline. Clinically significant changes from baseline in vital signs and clinical laboratory results were reported as TEAEs.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=70 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=26 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Number of Participants Who Experienced a TEAE
28 Participants
13 Participants

SECONDARY outcome

Timeframe: 3 hours post-dose on Day 1 and pre-dose on Day 2 (hospitalized participants only), Day 3, and Day 5

Population: PK Population: Included all participants in Part 2 who received one full dose of study drug and had samples with quantifiable plasma levels to allow for estimation of PK parameters. Per protocol, data were analyzed per age group and dose received.

Plasma concentrations of EDP-938 were assessed at the designated time points.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=7 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=8 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
n=7 Participants
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
n=9 Participants
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Concentrations of EDP-938 in Plasma
Day 1
1116.286 ng/mL
Standard Deviation 217.9983
1169.903 ng/mL
Standard Deviation 802.0744
1551.429 ng/mL
Standard Deviation 363.8419
1368.111 ng/mL
Standard Deviation 469.7815
Part 2: Concentrations of EDP-938 in Plasma
Day 2
585.400 ng/mL
Standard Deviation 119.6089
273.500 ng/mL
Standard Deviation 150.4616
140.783 ng/mL
Standard Deviation 73.3099
200.700 ng/mL
Standard Deviation 134.3896
Part 2: Concentrations of EDP-938 in Plasma
Day 3
194.000 ng/mL
Standard Deviation NA
Standard deviation was not estimable as only 1 participant had available data.
926.000 ng/mL
Standard Deviation 57.9828
112.000 ng/mL
Standard Deviation NA
Standard deviation was not estimable as only 1 participant had available data.
115.967 ng/mL
Standard Deviation 84.9347
Part 2: Concentrations of EDP-938 in Plasma
Day 5
516.333 ng/mL
Standard Deviation 247.6697
519.714 ng/mL
Standard Deviation 436.8130
69.110 ng/mL
Standard Deviation 40.4604
153.450 ng/mL
Standard Deviation 102.4372

SECONDARY outcome

Timeframe: 3 hours post-dose on Day 1 and pre-dose on Day 2 (hospitalized participants only), Day 3, and Day 5

Population: PK Population: Included all participants who received one full dose of study drug and had samples with quantifiable plasma levels to allow for estimation of PK parameters. Per protocol, data were analyzed per age group and dose received.

Plasma concentrations of EDP-938 were assessed at the designated time points.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=16 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=12 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
n=14 Participants
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
n=7 Participants
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
n=18 Participants
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Concentrations of EDP-938 in Plasma
Day 1
1125.250 ng/mL
Standard Deviation 321.4278
1443.102 ng/mL
Standard Deviation 1027.5197
1685.357 ng/mL
Standard Deviation 619.0267
1420.000 ng/mL
Standard Deviation 604.8140
1396.412 ng/mL
Standard Deviation 635.3537
Pooled Population: Concentrations of EDP-938 in Plasma
Day 2
458.817 ng/mL
Standard Deviation 173.0322
323.800 ng/mL
Standard Deviation 276.9576
285.410 ng/mL
Standard Deviation 293.0727
249.675 ng/mL
Standard Deviation 294.5416
221.269 ng/mL
Standard Deviation 191.0117
Pooled Population: Concentrations of EDP-938 in Plasma
Day 3
363.333 ng/mL
Standard Deviation 218.5162
926.000 ng/mL
Standard Deviation 57.9828
287.500 ng/mL
Standard Deviation 125.2478
97.533 ng/mL
Standard Deviation 64.9043
116.080 ng/mL
Standard Deviation 63.8730
Pooled Population: Concentrations of EDP-938 in Plasma
Day 5
522.918 ng/mL
Standard Deviation 257.0945
404.091 ng/mL
Standard Deviation 378.3365
250.269 ng/mL
Standard Deviation 472.9799
252.043 ng/mL
Standard Deviation 329.2155
167.835 ng/mL
Standard Deviation 131.6054

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Only participants who were hospitalized at randomization were included. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

Time to first discharge for participants who were hospitalized at randomization was calculated as: date/time of first discharge - date/time of first dose with conversion to days. For participants with continuous hospitalization, the last date of discharge from the continuous hospitalization was used.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=29 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=7 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Time to First Hospital Discharge for Hospitalized Participants
3.93 days
Standard Deviation 1.870
4.00 days
Standard Deviation 3.367

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Only participants who were hospitalized at randomization were included. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose.

Time to first discharge for participants who were hospitalized at randomization was calculated as: date/time of first discharge - date/time of first dose with conversion to days. For participants with continuous hospitalization, the last date of discharge from the continuous hospitalization was used.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=56 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=21 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Time to First Hospital Discharge for Hospitalized Participants
3.71 days
Standard Deviation 2.006
3.57 days
Standard Deviation 2.959

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. As there were no participants in Part 2 in both arms who were hospitalized at randomization who were not receiving oxygen at the time they received the first dose of study drug, no data were collected for this outcome measure.

For participants were were hospitalized at randomization, time to use of oxygen for hospitalization participants who were not receiving oxygen at the time they received the first dose of study drug was calculated as: first date/time of receiving oxygen - date/time of first dose of study drug with conversion to days.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only hospitalized participants who were not receiving oxygen at the time they received the first dose of study drug were included. In the Placebo arm, there were no hospitalized participants who were not receiving oxygen at the time they received the first dose of study drug.

For participants were were hospitalized at randomization, time to use of oxygen for hospitalization participants who were not receiving oxygen at the time they received the first dose of study drug was calculated as: first date/time of receiving oxygen - date/time of first dose of study drug with conversion to days.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=1 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Time to Use of Oxygen for Hospitalized Participants Who Were Not Receiving Oxygen at the Time They Received the First Dose of Study Drug
0.51 days
Standard Deviation NA
Standard deviation was not estimable as only 1 participant had available data.

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only participants who were hospitalized at randomization and/or during the study were included.

The numerator in the percentage calculation was defined by the number of participants who developed a new requirement for oxygen supplementation or new increase in oxygen requirements after the first dose of study drug, based on the response of "yes" to the "Is this an increase of oxygen supplementation compared to previous use?" question on the Oxygen Supplementation case report form (CRF). The 95% confidence interval was reported using the Clopper Pearson confidence interval methods.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=29 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=7 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Percentage of Hospitalized Participants Who Required Oxygen Supplementation or Had an Increased Oxygen Requirement After the First Dose of Study Drug
24.1 percentage of participants
Interval 10.3 to 43.54
28.6 percentage of participants
Interval 3.67 to 70.96

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only participants who were hospitalized at randomization and/or during the study were included.

The numerator in the percentage calculation was defined by the number of participants who developed a new requirement for oxygen supplementation or new increase in oxygen requirements after the first dose of study drug, based on the response of "yes" to the "Is this an increase of oxygen supplementation compared to previous use?" question on the Oxygen Supplementation CRF. The 95% confidence interval was reported using the Clopper Pearson confidence interval methods.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=56 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=21 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Percentage of Hospitalized Participants Who Required Oxygen Supplementation or Had an Increased Oxygen Requirement After the First Dose of Study Drug
25.0 percentage of participants
Interval 14.39 to 38.37
19.0 percentage of participants
Interval 5.45 to 41.91

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. As only participants who were hospitalized at baseline and experienced mechanical ventilation were included, no data were collected for this outcome measure.

Time to mechanical ventilation for participants who were hospitalized at randomization was calculated as: first date/time of mechanical ventilation - date/time of first dose of study drug with conversion to days. Participants who were on mechanical ventilation before their first dose of study drug were excluded from the analysis.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. As only participants who were hospitalized at baseline and experienced mechanical ventilation after their first dose of study drug were included, no data were collected for this outcome measure.

Time to mechanical ventilation for participants who were hospitalized at randomization was calculated as: first date/time of mechanical ventilation - date/time of first dose of study drug with conversion to days. Participants who were on mechanical ventilation before their first dose of study drug were excluded from the analysis.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only hospitalized participants who were not on mechanical ventilation prior to the first dose of study drug were included.

The numerator in the percentage calculation was defined by the number of participants who developed a new requirement for mechanical ventilation after the first dose of study drug. Participants on mechanical ventilation prior to the first dose of study drug were excluded from analysis. The 95% confidence interval was reported using the Clopper Pearson confidence interval methods.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=29 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=7 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Percentage of Hospitalized Participants Who Required Mechanical Ventilation
0 percentage of participants
Interval 0.0 to 11.94
0 percentage of participants
Interval 0.0 to 40.96

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only hospitalized participants who were not on mechanical ventilation prior to the first dose of study drug were included.

The numerator in the percentage calculation was defined by the number of participants who developed a new requirement for mechanical ventilation after the first dose of study drug. Participants on mechanical ventilation prior to the first dose of study drug were excluded from analysis. The 95% confidence interval was reported using the Clopper Pearson confidence interval methods.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=56 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=21 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Percentage of Hospitalized Participants Who Required Mechanical Ventilation
0 percentage of participants
Interval 0.0 to 6.38
0 percentage of participants
Interval 0.0 to 16.11

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only participants who were hospitalized at randomization and/or during the study were included.

The percentage of hospitalized participants who died during the study included deaths from any cause. The 95% confidence interval was reported using the Clopper Pearson confidence interval methods.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=29 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=7 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Percentage of Hospitalized Participants Who Died During the Study
0 percentage of participants
Interval 0.0 to 11.94
0 percentage of participants
Interval 0.0 to 40.96

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only participants who were hospitalized at randomization and/or during the study were included.

The percentage of hospitalized participants who died during the study included deaths from any cause. The 95% confidence interval was reported using the Clopper Pearson confidence interval methods.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=56 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=21 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Percentage of Hospitalized Participants Who Died During the Study
0 percentage of participants
Interval 0.0 to 6.38
0 percentage of participants
Interval 0.0 to 16.11

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. As only participants who were not hospitalized at randomization but subsequently hospitalized were included, no data were collected for this outcome measure.

Time to hospitalization for initial outpatients who are not hospitalized at randomization but subsequently hospitalized was calculated as: first date/time of hospitalization - date/time of first dose with conversion to days.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. As only participants who were not hospitalized at randomization but subsequently hospitalized were included, no data were collected for this outcome measure.

Time to hospitalization for initial outpatients who are not hospitalized at randomization but subsequently hospitalized was calculated as: first date/time of hospitalization - date/time of first dose with conversion to days.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only participants who were not hospitalized at randomization were included.

Participants who were hospitalized at randomization were excluded from the analysis. The 95% confidence interval was reported using the Clopper Pearson confidence interval methods.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=5 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=3 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Percentage of Outpatients Who Were Subsequently Hospitalized or Died
0 percentage of participants
Interval 0.0 to 52.18
0 percentage of participants
Interval 0.0 to 70.76

SECONDARY outcome

Timeframe: Day 1 to Day 28

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only participants who were not hospitalized at randomization were included.

Participants who were hospitalized at randomization were excluded from the analysis. The 95% confidence interval was reported using the Clopper Pearson confidence interval methods.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=13 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=6 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Percentage of Outpatients Who Were Subsequently Hospitalized or Died
0 percentage of participants
Interval 0.0 to 24.71
0 percentage of participants
Interval 0.0 to 45.93

SECONDARY outcome

Timeframe: Day 1 to Day 14

Population: Efficacy Population: Included all participants in Part 2 who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only participants who were not hospitalized were included.

Resolution of symptoms was defined as the first of 2 consecutive timepoints where each of the seven symptoms assessed by the Parent/Caregiver Respiratory Syncytial Virus (RSV) Foundation (ReSVinet) score was 0 (not present) or 1 (mild). Time to resolution of symptoms for outpatients who were not hospitalized was calculated as: first date/time of resolution of symptoms - date/time of first dose with conversion to days. Participants who did not achieve resolution and had not been followed through the Day 14 visit or completed the Day 14 questionnaire were censored at Day 14. During the study, the parent(s)/caregiver(s) assessed the severity of RSV-related signs and symptoms. The ReSVinet assessed 7 symptoms, with each symptom being rated from 0 (not present) to 3 (severe), apart from fever which was scored from 0-2. The full range was 0 to 20 with higher scores representing more severe disease.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=3 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=2 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Time to Resolution of Symptoms for Outpatients Who Were Not Hospitalized
2.60 days
Standard Deviation 1.686
1.49 days
Standard Deviation 0.702

SECONDARY outcome

Timeframe: Day 1 to Day 14

Population: Efficacy Population: Included all participants who received one full dose of study drug and had at least one evaluable measurement while on treatment. Per the protocol, analyses were planned to be grouped by EDP-938 and placebo, rather than by dose. Only participants who were not hospitalized were included.

Resolution of symptoms was defined as the first of 2 consecutive timepoints where each of the seven symptoms assessed by the Parent/Caregiver ReSVinet score was 0 (not present) or 1 (mild). Time to resolution of symptoms for outpatients who were not hospitalized was calculated as: first date/time of resolution of symptoms - date/time of first dose with conversion to days. Participants who did not achieve resolution and had not been followed through the Day 14 visit or completed the Day 14 questionnaire were censored at Day 14. During the study, the parent(s)/caregiver(s) assessed the severity of RSV-related signs and symptoms. The ReSVinet assessed 7 symptoms, with each symptom being rated from 0 (not present) to 3 (severe), apart from fever which was scored from 0-2. The full range was 0 to 20 with higher scores representing more severe disease.

Outcome measures

Outcome measures
Measure
Part 1: EDP-938 5mg/kg (≥ 28 Days to < 3 Months)
n=8 Participants
Participants aged between ≥ 28 days and \< 3 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 3 Months to < 6 Months)
n=5 Participants
Participants aged between ≥ 3 months and \< 6 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 6 Months to < 12 Months)
Participants aged between ≥ 6 months and \< 12 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 5mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: EDP-938 7.5 mg/kg (≥ 12 Months to ≤ 36 Months)
Participants aged between ≥ 12 months to ≤ 36 months received oral 7.5 mg/kg doses of EDP-938 QD from Day 1 to Day 5 of the study.
Pooled Population: Time to Resolution of Symptoms for Outpatients Who Were Not Hospitalized
2.42 days
Standard Deviation 1.163
4.20 days
Standard Deviation 5.552

Adverse Events

Part 1: EDP-938

Serious events: 0 serious events
Other events: 7 other events
Deaths: 0 deaths

Part 1: Placebo

Serious events: 2 serious events
Other events: 7 other events
Deaths: 0 deaths

Part 2: EDP-938

Serious events: 1 serious events
Other events: 9 other events
Deaths: 0 deaths

Part 2: Placebo

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Part 1: EDP-938
n=36 participants at risk
Participants who received oral doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: Placebo
n=16 participants at risk
Participants who received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: EDP-938
n=34 participants at risk
Participants who received oral doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Placebo
n=10 participants at risk
Participants who received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Infections and infestations
Bronchiolitis
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Infections and infestations
Pneumonia
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/16 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
2.9%
1/34 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.

Other adverse events

Other adverse events
Measure
Part 1: EDP-938
n=36 participants at risk
Participants who received oral doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 1: Placebo
n=16 participants at risk
Participants who received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: EDP-938
n=34 participants at risk
Participants who received oral doses of EDP-938 QD from Day 1 to Day 5 of the study.
Part 2: Placebo
n=10 participants at risk
Participants who received oral doses of placebo matching EDP-938 QD from Day 1 to Day 5 of the study.
Investigations
Myocardial necrosis marker increased
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/16 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
10.0%
1/10 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Blood and lymphatic system disorders
Anaemia
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/16 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
10.0%
1/10 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Blood and lymphatic system disorders
Thrombocytosis
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/16 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
5.9%
2/34 • Number of events 2 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
General disorders
Pyrexia
2.8%
1/36 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/16 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
10.0%
1/10 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Gastrointestinal disorders
Diarrhoea
11.1%
4/36 • Number of events 4 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
8.8%
3/34 • Number of events 3 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Gastrointestinal disorders
Vomiting
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Respiratory, thoracic and mediastinal disorders
Nasal congestion
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
2.9%
1/34 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Skin and subcutaneous tissue disorders
Dermatitis diaper
2.8%
1/36 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Skin and subcutaneous tissue disorders
Eczema
2.8%
1/36 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
2.9%
1/34 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Skin and subcutaneous tissue disorders
Papule
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Skin and subcutaneous tissue disorders
Rash
2.8%
1/36 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/16 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
5.9%
2/34 • Number of events 2 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
10.0%
1/10 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Infections and infestations
Acarodermatitis
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Infections and infestations
Nasopharyngitis
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
2.9%
1/34 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
10.0%
1/10 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Infections and infestations
Otitis media acute
2.8%
1/36 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
2.9%
1/34 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Infections and infestations
Pneumonia bacterial
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
Infections and infestations
Respiratory tract infection
0.00%
0/36 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
6.2%
1/16 • Number of events 1 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/34 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.
0.00%
0/10 • Up to Day 28
The analysis population for serious adverse events and other (non-serious) adverse events was the safety population which included all participants who received any dose (including partial doses) of any study drug. Per Section 4.1 of the SAP, analyses were planned to be grouped by treatment, rather than by specific dose.

Additional Information

Medical Monitor

Enanta Pharmaceuticals, Inc.

Phone: +1 6176070800

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place