Trial Outcomes & Findings for A Study to Assess the Safety and Immunogenicity of PXVX0317 Chikungunya Virus Virus-Like Particle Vaccine (NCT NCT05065983)

NCT ID: NCT05065983

Last Updated: 2023-07-03

Results Overview

CHIKV SNA Seroresponse Rate (Titer \>=40) and Associated 95% Confidence Interval (CI) at Day 22

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

25 participants

Primary outcome timeframe

21 days post vaccination

Results posted on

2023-07-03

Participant Flow

Participants were recruited at 1 U.S. site.

Participant milestones

Participant milestones
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Overall Study
STARTED
25
Overall Study
Exposed
25
Overall Study
Safety
25
Overall Study
mITT
25
Overall Study
COMPLETED
23
Overall Study
NOT COMPLETED
2

Reasons for withdrawal

Reasons for withdrawal
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Overall Study
Lost to Follow-up
2

Baseline Characteristics

A Study to Assess the Safety and Immunogenicity of PXVX0317 Chikungunya Virus Virus-Like Particle Vaccine

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Age, Categorical
<=18 years
0 Participants
n=99 Participants
Age, Categorical
Between 18 and 65 years
25 Participants
n=99 Participants
Age, Categorical
>=65 years
0 Participants
n=99 Participants
Age, Continuous
34.1 years
STANDARD_DEVIATION 5.8 • n=99 Participants
Sex: Female, Male
Female
14 Participants
n=99 Participants
Sex: Female, Male
Male
11 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
Race (NIH/OMB)
Asian
1 Participants
n=99 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
Race (NIH/OMB)
Black or African American
8 Participants
n=99 Participants
Race (NIH/OMB)
White
15 Participants
n=99 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=99 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
Region of Enrollment
United States
25 participants
n=99 Participants
Day 1 predose (baseline) geometric mean anti-chikungunya luciferase neutralizing antibody titer.
7.5 Titer
n=99 Participants

PRIMARY outcome

Timeframe: 21 days post vaccination

Population: mITT

CHIKV SNA Seroresponse Rate (Titer \>=40) and Associated 95% Confidence Interval (CI) at Day 22

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
CHIKV SNA (Serum Neutralizing Antibody) Seroresponse Rate at Day 22
100.0 Percentage of participants
Interval 86.7 to 100.0

PRIMARY outcome

Timeframe: 21 days post vaccination

Population: mITT

CHIKV SNA GMT and Associated 95% CI at Day 22

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
CHIKV SNA GMT (Geometric Mean Titer) at Day 22
2365.2 Titer
Interval 1625.0 to 3442.4

PRIMARY outcome

Timeframe: 56 days post vaccination

Population: mITT

CHIKV SNA Seroresponse Rates with Associated 95% CIs at Days 8, 15, and 57

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
CHIKV SNA Seroresponse Rates at Days 8, 15, and 57
Day 8 titer at or above 40
76.0 Percentage of participants
Interval 56.6 to 88.5
CHIKV SNA Seroresponse Rates at Days 8, 15, and 57
Day 15 titer at or above 40
100.0 Percentage of participants
Interval 86.7 to 100.0
CHIKV SNA Seroresponse Rates at Days 8, 15, and 57
Day 57 titer at or above 40
100.0 Percentage of participants
Interval 86.2 to 100.0

PRIMARY outcome

Timeframe: 56 days post vaccination

Population: mITT

CHIKV SNA GMTs with Associated 95% CIs at Days 8, 15, and 57

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
CHIKV SNA GMTs at Days 8, 15, and 57
Day 8
117.4 Titer
Interval 68.3 to 201.8
CHIKV SNA GMTs at Days 8, 15, and 57
Day 15
1397.1 Titer
Interval 901.9 to 2164.2
CHIKV SNA GMTs at Days 8, 15, and 57
Day 57
1069.7 Titer
Interval 720.2 to 1588.9

PRIMARY outcome

Timeframe: 56 days post vaccination

Population: mITT

CHIKV ELISA IgG GMTs with Associated 95% CIs at Days 8, 15, 22, and 57

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
CHIKV ELISA (Enzyme-Linked Immunosorbent Assay) IgG GMTs at Days 8, 15, 22, and 57
Day 8
0.71 Titer
Interval 0.66 to 0.77
CHIKV ELISA (Enzyme-Linked Immunosorbent Assay) IgG GMTs at Days 8, 15, 22, and 57
Day 15
1.1 Titer
Interval 0.88 to 1.4
CHIKV ELISA (Enzyme-Linked Immunosorbent Assay) IgG GMTs at Days 8, 15, 22, and 57
Day 22
1.5 Titer
Interval 1.3 to 1.9
CHIKV ELISA (Enzyme-Linked Immunosorbent Assay) IgG GMTs at Days 8, 15, 22, and 57
Day 57
1.2 Titer
Interval 1.0 to 1.4

PRIMARY outcome

Timeframe: 56 days post vaccination

Population: mITT

CHIKV ELISA IgM GMTs with Associated 95% CIs at Days 8, 15, 22, and 57

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
CHIKV ELISA IgM GMTs at Days 8, 15, 22, and 57
Day 8
1.2 Titer
Interval 0.93 to 1.6
CHIKV ELISA IgM GMTs at Days 8, 15, 22, and 57
Day 15
5.0 Titer
Interval 4.0 to 6.3
CHIKV ELISA IgM GMTs at Days 8, 15, 22, and 57
Day 22
6.2 Titer
Interval 5.0 to 7.7
CHIKV ELISA IgM GMTs at Days 8, 15, 22, and 57
Day 57
2.9 Titer
Interval 2.1 to 3.8

PRIMARY outcome

Timeframe: 56 days post vaccination

Population: mITT

GMFI in CHIK SNA Titers from Day 1 to Days 8, 15, 22, and 57

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Geometric Mean Fold Increase (GMFI) in CHIK SNA Titers at Days 8, 15, 22, and 57
Day 8
15.6 Fold increase
Interval 9.1 to 26.9
Geometric Mean Fold Increase (GMFI) in CHIK SNA Titers at Days 8, 15, 22, and 57
Day 15
186.3 Fold increase
Interval 120.3 to 288.6
Geometric Mean Fold Increase (GMFI) in CHIK SNA Titers at Days 8, 15, 22, and 57
Day 22
315.4 Fold increase
Interval 216.7 to 459.0
Geometric Mean Fold Increase (GMFI) in CHIK SNA Titers at Days 8, 15, 22, and 57
Day 57
142.6 Fold increase
Interval 96.0 to 211.9

PRIMARY outcome

Timeframe: 56 days post vaccination

Population: mITT

GMFI in CHIK ELISA IgG from Day 1 to Days 8, 15, 22, and 57

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
GMFI in CHIK ELISA IgG at Days 8, 15, 22, and 57
Day 8
0.93 Fold increase
Interval 0.77 to 1.1
GMFI in CHIK ELISA IgG at Days 8, 15, 22, and 57
Day 15
1.4 Fold increase
Interval 1.0 to 2.0
GMFI in CHIK ELISA IgG at Days 8, 15, 22, and 57
Day 22
2.0 Fold increase
Interval 1.5 to 2.6
GMFI in CHIK ELISA IgG at Days 8, 15, 22, and 57
Day 57
1.7 Fold increase
Interval 1.4 to 2.1

PRIMARY outcome

Timeframe: 56 days post vaccination

Population: mITT

GMFI in CHIK ELISA IgM from Day 1 to Days 8, 15, 22, and 57

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
GMFI in CHIK ELISA IgM at Days 8, 15, 22, and 57
Day 8
3.1 Fold increase
Interval 2.3 to 4.1
GMFI in CHIK ELISA IgM at Days 8, 15, 22, and 57
Day 15
12.6 Fold increase
Interval 9.9 to 16.1
GMFI in CHIK ELISA IgM at Days 8, 15, 22, and 57
Day 22
15.6 Fold increase
Interval 12.6 to 19.4
GMFI in CHIK ELISA IgM at Days 8, 15, 22, and 57
Day 57
7.2 Fold increase
Interval 5.3 to 9.8

PRIMARY outcome

Timeframe: 56 days post vaccination

Population: mITT

Number and Percentage of Participants with a CHIKV SNA Titer ≥15, 40, 60, 80, 100, 160, 640, and 4-fold Rise Over Baseline Thresholds at Days 8, 15, 22, and 57

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 8 : Titer at or above 15
96.0 Percentage of participants
Interval 80.5 to 99.3
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 8 : Titer at or above 40
76.0 Percentage of participants
Interval 56.6 to 88.5
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 8 : Titer at or above 60
68.0 Percentage of participants
Interval 48.4 to 82.8
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 8 : Titer at or above 80
56.0 Percentage of participants
Interval 37.1 to 73.3
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 8 : Titer at or above 100
52.0 Percentage of participants
Interval 33.5 to 70.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 8 : Titer at or above 160
48.0 Percentage of participants
Interval 30.0 to 66.5
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 8 : Titer at or above 640
12.0 Percentage of participants
Interval 4.2 to 30.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 8 : Titer at or above 4-fold rise over baseline
88.0 Percentage of participants
Interval 70.0 to 95.8
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 15 : Titer at or above 15
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 15 : Titer at or above 40
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 15 : Titer at or above 60
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 15 : Titer at or above 80
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 15 : Titer at or above 100
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 15 : Titer at or above 160
96.0 Percentage of participants
Interval 80.5 to 99.3
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 15 : Titer at or above 640
76.0 Percentage of participants
Interval 56.6 to 88.5
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 15 : Titer at or above 4-fold rise over baseline
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 22 : Titer at or above 15
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 22 : Titer at or above 40
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 22 : Titer at or above 60
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 22 : Titer at or above 80
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 22 : Titer at or above 100
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 22 : Titer at or above 160
96.0 Percentage of participants
Interval 80.5 to 99.3
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 22 : Titer at or above 640
92.0 Percentage of participants
Interval 75.0 to 97.8
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 22 : Titer at or above 4-fold rise over baseline
100.0 Percentage of participants
Interval 86.7 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 57 : Titer at or above 15
100.0 Percentage of participants
Interval 86.2 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 57 : Titer at or above 40
100.0 Percentage of participants
Interval 86.2 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 57 : Titer at or above 60
100.0 Percentage of participants
Interval 86.2 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 57 : Titer at or above 80
100.0 Percentage of participants
Interval 86.2 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 57 : Titer at or above 100
100.0 Percentage of participants
Interval 86.2 to 100.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 57 : Titer at or above 160
95.8 Percentage of participants
Interval 79.8 to 99.3
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 57 : Titer at or above 640
75.0 Percentage of participants
Interval 55.1 to 88.0
Number and Percentage of Participants With a CHIKV SNA Titer at or Above Threshold Values at Days 8, 15, 22, and 57
Day 57 : Titer at or above 4-fold rise over baseline
100.0 Percentage of participants
Interval 86.2 to 100.0

SECONDARY outcome

Timeframe: 7 days post vaccination

Population: Safety population

Incidence of Solicited AEs Through Day 8

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Incidence of Solicited Adverse Events (AE) Through Day 8
Any solicited AE
17 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Any systemic solicited AE
12 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Fever
1 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Chills
1 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Fatigue
8 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Headache
7 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Myalgia
5 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Arthralgia
2 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Nausea
2 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Any local solicited AE
14 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Injection site pain
14 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Injection site redness
0 Participants
Incidence of Solicited Adverse Events (AE) Through Day 8
Injection site swelling
0 Participants

SECONDARY outcome

Timeframe: 28 days post vaccination

Population: Safety population

Incidence of Unsolicited AEs Through Day 29

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Incidence of Unsolicited AEs Through Day 29
Oropharyngeal pain
1 Participants
Incidence of Unsolicited AEs Through Day 29
Participants with any unsolicited AEs
8 Participants
Incidence of Unsolicited AEs Through Day 29
General disorders and administration site conditions
2 Participants
Incidence of Unsolicited AEs Through Day 29
Vessel puncture site bruise
2 Participants
Incidence of Unsolicited AEs Through Day 29
Immune system disorders
1 Participants
Incidence of Unsolicited AEs Through Day 29
Anaphylactic reaction
1 Participants
Incidence of Unsolicited AEs Through Day 29
Infections and infestations
1 Participants
Incidence of Unsolicited AEs Through Day 29
Sinusitis
1 Participants
Incidence of Unsolicited AEs Through Day 29
Musculoskeletal and connective tissue disorders
1 Participants
Incidence of Unsolicited AEs Through Day 29
Myalgia
1 Participants
Incidence of Unsolicited AEs Through Day 29
Nervous system disorders
5 Participants
Incidence of Unsolicited AEs Through Day 29
Dizziness
2 Participants
Incidence of Unsolicited AEs Through Day 29
Presyncope
3 Participants
Incidence of Unsolicited AEs Through Day 29
Headache
1 Participants
Incidence of Unsolicited AEs Through Day 29
Psychiatric disorders
1 Participants
Incidence of Unsolicited AEs Through Day 29
Anxiety
1 Participants
Incidence of Unsolicited AEs Through Day 29
Respiratory, thoracic and mediastinal disorders
2 Participants
Incidence of Unsolicited AEs Through Day 29
Rhinorrhoea
2 Participants
Incidence of Unsolicited AEs Through Day 29
Vascular disorders
1 Participants
Incidence of Unsolicited AEs Through Day 29
Hot flush
1 Participants

SECONDARY outcome

Timeframe: 182 days post vaccination

Population: Safety population

Incidence of AESIs Through Day 183

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Incidence of Adverse Events of Special Interest (AESI) Through Day 183
0 Participants

SECONDARY outcome

Timeframe: 182 days post vaccination

Population: Safety population

Incidence of SAEs Through Day 183

Outcome measures

Outcome measures
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 Participants
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Incidence of Serious Adverse Events (SAEs) Through Day 183
0 Participants

Adverse Events

PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine

Serious events: 0 serious events
Other events: 17 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
PXVX0317 (CHIKV VLP, Alum-adjuvanted) Vaccine
n=25 participants at risk
All study participants will receive the same Investigational Product (40 µg CHIKV VLP, alum-adjuvanted according to the same single dose schedule on Day 1). CHIKV VLP, adjuvanted: Adjuvanted formulation includes aluminum hydroxide
Gastrointestinal disorders
Nausea
8.0%
2/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
General disorders
Injection site pain
56.0%
14/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
General disorders
Fatigue
32.0%
8/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
General disorders
Vessel puncture site bruise
8.0%
2/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
General disorders
Chills
4.0%
1/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
General disorders
Pyrexia
4.0%
1/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Immune system disorders
Anaphylactic reaction
4.0%
1/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Infections and infestations
Sinusitis
4.0%
1/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Musculoskeletal and connective tissue disorders
Myalgia
24.0%
6/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Musculoskeletal and connective tissue disorders
Arthralgia
8.0%
2/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Nervous system disorders
Headache
28.0%
7/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Nervous system disorders
Dizziness
8.0%
2/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Nervous system disorders
Presyncope
12.0%
3/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Psychiatric disorders
Anxiety
4.0%
1/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
8.0%
2/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
4.0%
1/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.
Vascular disorders
Hot flush
4.0%
1/25 • AEs include solicited AEs collected through Day 8 and unsolicited AEs collected through Day 29. SAEs (reported separately) were collected through Day 183.

Additional Information

Dr. Sufia Muhammad

Emergent BioSolutions

Phone: 346-732-7331

Results disclosure agreements

  • Principal investigator is a sponsor employee PI may publish or release study data after the earlier of (a) the date of publication of a multi-center publication coordinated by Sponsor on the study data, or (b) the date of submission of the study data by Sponsor to regulatory authorities for regulatory approval; provided that PI furnishes Sponsor with a copy of any proposed publication or release at least ninety days in advance of the proposed submission or presentation date for review. PI must acknowledge Sponsor on any publication.
  • Publication restrictions are in place

Restriction type: OTHER