Trial Outcomes & Findings for A Study of BAX 888 in Male Adults With Severe Hemophilia A (NCT NCT03370172)

NCT ID: NCT03370172

Last Updated: 2025-09-11

Results Overview

An AE is defined as any untoward medical occurrence in a participant administered an investigational product (IP) that does not necessarily have a causal relationship with the treatment. A Serious adverse event (SAE) is an AE resulting in any of the following outcomes: death; life-threatening event; required or prolonged inpatient hospitalization; persistent or significant disability/incapacity; congenital anomaly. AEs include both serious and non-serious adverse events including development of FVIII inhibitory antibodies, clinically significant changes in standard laboratory parameters, physical exam, and vital signs.

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

4 participants

Primary outcome timeframe

From first dose up to end of the study (approximately 6 years)

Results posted on

2025-09-11

Participant Flow

A total of 4 participants took part in the study globally from 27 February 2018 to 09 July 2024.

Participants with severe Hemophilia A participated in the study to receive BAX 888.

Participant milestones

Participant milestones
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Overall Study
STARTED
2
2
Overall Study
COMPLETED
2
1
Overall Study
NOT COMPLETED
0
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Overall Study
Withdrawal by Subject
0
1

Baseline Characteristics

A Study of BAX 888 in Male Adults With Severe Hemophilia A

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Total
n=4 Participants
Total of all reporting groups
Age, Continuous
29.5 years
STANDARD_DEVIATION 13.44 • n=99 Participants
27.5 years
STANDARD_DEVIATION 3.54 • n=107 Participants
28.5 years
STANDARD_DEVIATION 8.1 • n=206 Participants
Sex: Female, Male
Female
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Sex: Female, Male
Male
2 Participants
n=99 Participants
2 Participants
n=107 Participants
4 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants
n=99 Participants
2 Participants
n=107 Participants
4 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
White
2 Participants
n=99 Participants
2 Participants
n=107 Participants
4 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants

PRIMARY outcome

Timeframe: From first dose up to end of the study (approximately 6 years)

Population: The Safety Set consisted of all participants who received any amount of investigational product.

An AE is defined as any untoward medical occurrence in a participant administered an investigational product (IP) that does not necessarily have a causal relationship with the treatment. A Serious adverse event (SAE) is an AE resulting in any of the following outcomes: death; life-threatening event; required or prolonged inpatient hospitalization; persistent or significant disability/incapacity; congenital anomaly. AEs include both serious and non-serious adverse events including development of FVIII inhibitory antibodies, clinically significant changes in standard laboratory parameters, physical exam, and vital signs.

Outcome measures

Outcome measures
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Number of Participants With BAX 888-Related Adverse Events (AEs)
2 Participants
2 Participants

SECONDARY outcome

Timeframe: Baseline, up to Month 60

Population: The Safety Set consisted of all participants who received any amount of investigational product. Overall number analyzed is the number of participants with data available for analysis for this outcome measure.

Change from baseline in circulating plasma FVIII activity level, based on one-stage clotting assay was assessed.

Outcome measures

Outcome measures
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=1 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Change From Baseline in Circulating Plasma FVIII Activity Level
11.40 International Units per deciliter(IU/dL)
Standard Deviation 1.131
248.30 International Units per deciliter(IU/dL)
Standard Deviation NA
Standard Deviation (SD) is not estimable when there is only a single participant.

SECONDARY outcome

Timeframe: Baseline, up to Month 60

Population: The Safety Set consisted of all participants who received any amount of investigational product.

Change from baseline in circulating plasma FVIII antigen (protein) levels were to be assessed and number of participants with clinically significant change as determined by the principal investigator (PI) were reported.

Outcome measures

Outcome measures
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Number of Participants With Clinically Significant Change From Baseline in Circulating Plasma FVIII Antigen Level
2 Participants
0 Participants

SECONDARY outcome

Timeframe: Up to approximately 6 years 4 months

Population: The Safety Set consisted of all participants who received any amount of investigational product.

ABR in comparison to before gene transfer will be assessed. A bleed is defined as subjective or objective evidence of bleeding which may or may not require treatment with FVIII. ABR was calculated as (number of bleeding episodes/observed treatment period in days)\*365.25.

Outcome measures

Outcome measures
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Annualized Bleed Rate (ABR)
1.0 bleeds per year
Standard Deviation 1.41
0.5 bleeds per year
Standard Deviation 0.71

SECONDARY outcome

Timeframe: Up to approximately 6 years 4 months

Population: The Safety Set consisted of all participants who received any amount of investigational product.

The reduction in consumption of exogenous FVIII was assessed by comparing the amount of exogenous FVIII taken at earliest time point available (prior to BAX 888 infusion) with the amount taken at the last post-infusion timepoint available, during the study. Percentage of participants with reduction in consumption of exogenous FVIII are reported.

Outcome measures

Outcome measures
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Percentage of Participants With a Reduction in Consumption of Exogenous FVIII
0.0 percentage of participants
0.0 percentage of participants

SECONDARY outcome

Timeframe: Up to approximately 6 years 4 months

Population: The Safety Set consisted of all participants who received any amount of investigational product.

Participants were assessed to check if they developed inhibitory antibodies to FVIII.

Outcome measures

Outcome measures
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Number of Participants Who Developed Inhibitory Antibodies to FVIII
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Up to approximately 6 years 4 months

Population: The Safety Set consisted of all participants who received any amount of investigational product.

Participants were assessed to check if they developed total binding antibodies to FVIII (Immunoglobulin G \[IgG\], Immunoglobulin M \[IgM\]).

Outcome measures

Outcome measures
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Number of Participants Who Developed Total Binding Antibodies to FVIII
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Up to approximately 6 years 4 months

Population: The Safety Set consisted of all participants who received any amount of investigational product. Number analyzed is the number of participants with data available for analysis for the specified categories.

The humoral (antibody-mediated) and cell-mediated immune response to adeno-associated virus (AAV8) (the vector) and FVIII proteins, was assessed. Humoral Immune Response: It is indicated by presence of specific antibodies. The anti-AAV8 binding antibodies, IgG or IgM were measured by the enzyme-linked immunosorbent assay (ELISA) method. Neutralizing antibodies were measured by a cell-based luminescent assay. Cell-mediated Immune response: The AAV8 and FVIII specific cell mediated immunity was assessed using validated interferon-γ (IFN-γ) enzyme-linked immunosorbent spot (ELISpot) assays. This assay tests the human T-cell recall response to the AAV8 and FVIII proteins. These proteins were called antigens for these tests (AAV8 peptide pools 1, 2, 3 and two pooled test antigens (1 and 2) for FVIII). Number of participants who had humoral and/or cell mediated immune response to AAV8 and FVIII proteins, are reported by humoral and cell mediated immune response categories.

Outcome measures

Outcome measures
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Number of Participants With Humoral and Cell-Mediated Immune Response to AAV8 and FVIII Proteins
Humoral: Binding Ab to AAV8 IgG Titer
2 Participants
1 Participants
Number of Participants With Humoral and Cell-Mediated Immune Response to AAV8 and FVIII Proteins
Humoral: Neutralising Ab to AAV8 Titer
2 Participants
1 Participants
Number of Participants With Humoral and Cell-Mediated Immune Response to AAV8 and FVIII Proteins
Cell-Mediated: AAV8 Peptide Pool 1 Mean
0 Participants
1 Participants
Number of Participants With Humoral and Cell-Mediated Immune Response to AAV8 and FVIII Proteins
Cell-Mediated: AAV8 Peptide Pool 2 Mean
1 Participants
1 Participants
Number of Participants With Humoral and Cell-Mediated Immune Response to AAV8 and FVIII Proteins
Cell-Mediated: AAV8 Peptide Pool 3 Mean
1 Participants
1 Participants
Number of Participants With Humoral and Cell-Mediated Immune Response to AAV8 and FVIII Proteins
Cell-Mediated: FVIII Peptide Pool 1 Mean
0 Participants
0 Participants
Number of Participants With Humoral and Cell-Mediated Immune Response to AAV8 and FVIII Proteins
Cell-Mediated: FVIII Peptide Pool 2 Mean
1 Participants
1 Participants

SECONDARY outcome

Timeframe: Blood: Day 1, weekly at Clinic Visits between Weeks 1-15, and at Months 4 and 5; Saliva, Semen, and Stool: Day 1 and Week 1; Urine: Day 1 and Weeks 1,2,3

Population: The Safety Set consisted of all participants who received any amount of investigational product. The data was collected for each category until 2 consecutive measurements were negative. Number analyzed is the number of participants with data available for analysis at specified time points.

Surveillance of AAV8 genome shedding in blood, saliva, semen, stool and urine until two consecutive negative results were assessed.

Outcome measures

Outcome measures
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 Participants
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 Participants
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Surveillance of AAV8 Genome Shedding
Blood: Week 13
654.0 Genome copies per 100 ng of sample
Standard Deviation 22.63
3044.5 Genome copies per 100 ng of sample
Standard Deviation 1191.47
Surveillance of AAV8 Genome Shedding
Blood: Day 1
3684434.0 Genome copies per 100 ng of sample
Standard Deviation NA
SD was not estimable for a single participant.
Surveillance of AAV8 Genome Shedding
Blood: Week 1
3634.0 Genome copies per 100 ng of sample
Standard Deviation NA
SD was not estimable for a single participant.
18608.0 Genome copies per 100 ng of sample
Standard Deviation 664.68
Surveillance of AAV8 Genome Shedding
Blood: Week 2
2076.0 Genome copies per 100 ng of sample
Standard Deviation 295.57
10670.0 Genome copies per 100 ng of sample
Standard Deviation 3900.40
Surveillance of AAV8 Genome Shedding
Blood: Week 3
2069.0 Genome copies per 100 ng of sample
Standard Deviation 741.05
9845.0 Genome copies per 100 ng of sample
Standard Deviation 6488.41
Surveillance of AAV8 Genome Shedding
Blood: Week 4
1098.0 Genome copies per 100 ng of sample
Standard Deviation NA
SD was not estimable for a single participant.
9033.5 Genome copies per 100 ng of sample
Standard Deviation 4978.74
Surveillance of AAV8 Genome Shedding
Blood: Week 5
1483.0 Genome copies per 100 ng of sample
Standard Deviation 1097.43
7884.0 Genome copies per 100 ng of sample
Standard Deviation 288.50
Surveillance of AAV8 Genome Shedding
Blood: Week 6
904.0 Genome copies per 100 ng of sample
Standard Deviation 335.17
5372.5 Genome copies per 100 ng of sample
Standard Deviation 441.94
Surveillance of AAV8 Genome Shedding
Blood: Week 7
1004.0 Genome copies per 100 ng of sample
Standard Deviation 656.20
6808.0 Genome copies per 100 ng of sample
Standard Deviation 1121.47
Surveillance of AAV8 Genome Shedding
Blood: Week 8
828.5 Genome copies per 100 ng of sample
Standard Deviation 267.99
7384.0 Genome copies per 100 ng of sample
Standard Deviation 1011.16
Surveillance of AAV8 Genome Shedding
Blood: Week 9
714.5 Genome copies per 100 ng of sample
Standard Deviation 222.74
6384.5 Genome copies per 100 ng of sample
Standard Deviation 195.87
Surveillance of AAV8 Genome Shedding
Blood: Week 10
773.0 Genome copies per 100 ng of sample
Standard Deviation 9.90
6144.5 Genome copies per 100 ng of sample
Standard Deviation 939.74
Surveillance of AAV8 Genome Shedding
Blood: Week 11
755.0 Genome copies per 100 ng of sample
Standard Deviation 241.83
3935.0 Genome copies per 100 ng of sample
Standard Deviation 1547.15
Surveillance of AAV8 Genome Shedding
Blood: Week 12
728.0 Genome copies per 100 ng of sample
Standard Deviation 130.11
3893.5 Genome copies per 100 ng of sample
Standard Deviation 276.48
Surveillance of AAV8 Genome Shedding
Blood: Week 14
735.5 Genome copies per 100 ng of sample
Standard Deviation 82.73
2856.0 Genome copies per 100 ng of sample
Standard Deviation 1473.61
Surveillance of AAV8 Genome Shedding
Blood: Week 15
742.0 Genome copies per 100 ng of sample
Standard Deviation NA
SD was not estimable for a single participant.
2812.0 Genome copies per 100 ng of sample
Standard Deviation 2083.14
Surveillance of AAV8 Genome Shedding
Blood: Month 4
422.0 Genome copies per 100 ng of sample
Standard Deviation 192.33
3066.0 Genome copies per 100 ng of sample
Standard Deviation NA
SD was not estimable for a single participant.
Surveillance of AAV8 Genome Shedding
Blood: Month 5
210.0 Genome copies per 100 ng of sample
Standard Deviation NA
SD was not estimable for a single participant.
Surveillance of AAV8 Genome Shedding
Saliva: Day 1
935.0 Genome copies per 100 ng of sample
Standard Deviation 268.70
2076.5 Genome copies per 100 ng of sample
Standard Deviation 473.05
Surveillance of AAV8 Genome Shedding
Saliva: Week 1
352.5 Genome copies per 100 ng of sample
Standard Deviation 12.02
Surveillance of AAV8 Genome Shedding
Semen: Day 1
55.0 Genome copies per 100 ng of sample
Standard Deviation NA
SD was not estimable for a single participant.
230.5 Genome copies per 100 ng of sample
Standard Deviation 188.80
Surveillance of AAV8 Genome Shedding
Semen: Week 1
194.0 Genome copies per 100 ng of sample
Standard Deviation NA
SD was not estimable for a single participant.
Surveillance of AAV8 Genome Shedding
Stool: Day 1
5985.0 Genome copies per 100 ng of sample
Standard Deviation NA
SD was not estimable for a single participant.
Surveillance of AAV8 Genome Shedding
Stool: Week 1
7164.0 Genome copies per 100 ng of sample
Standard Deviation 7993.14
Surveillance of AAV8 Genome Shedding
Urine: Day 1
NA Genome copies per 100 ng of sample
Standard Deviation NA
Mean and SD were not estimable due to genome concentrations being Below Limit of Detection.
NA Genome copies per 100 ng of sample
Standard Deviation NA
Mean and SD were not estimable due to genome concentrations being Below Limit of Detection.
Surveillance of AAV8 Genome Shedding
Urine: Week 1
NA Genome copies per 100 ng of sample
Standard Deviation NA
Mean and SD were not estimable due to genome concentrations being Below Limit of Detection.
NA Genome copies per 100 ng of sample
Standard Deviation NA
Mean and SD were not estimable due to genome concentrations being Below Limit of Detection.
Surveillance of AAV8 Genome Shedding
Urine: Week 2
NA Genome copies per 100 ng of sample
Standard Deviation NA
Mean and SD were not estimable due to genome concentrations being Below Limit of Detection.
NA Genome copies per 100 ng of sample
Standard Deviation NA
Mean and SD were not estimable due to genome concentrations being Below Limit of Detection.
Surveillance of AAV8 Genome Shedding
Urine: Week 3
NA Genome copies per 100 ng of sample
Standard Deviation NA
Mean and SD were not estimable due to genome concentrations being Below Limit of Detection.
NA Genome copies per 100 ng of sample
Standard Deviation NA
Mean and SD were not estimable due to genome concentrations being Below Limit of Detection.

Adverse Events

Cohort 1: BAX 888 2.0*10^12 cp/kg

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

Cohort 2: BAX 888 6.0*10^12 cp/kg

Serious events: 1 serious events
Other events: 2 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 participants at risk
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 participants at risk
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Metabolism and nutrition disorders
Hypophosphataemia
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.

Other adverse events

Other adverse events
Measure
Cohort 1: BAX 888 2.0*10^12 cp/kg
n=2 participants at risk
Cohort 1 participants received a single peripheral intravenous (IV) infusion of BAX 888 at a dose of 2.0\*10\^12 capsid particles per kilogram (cp/kg) on the day of dosing (Day 0).
Cohort 2: BAX 888 6.0*10^12 cp/kg
n=2 participants at risk
Cohort 2 participants received a single peripheral IV infusion of BAX 888 at a dose of 6.0\*10\^12 cp/kg on the day of dosing (Day 0).
Gastrointestinal disorders
Abdominal pain upper
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Musculoskeletal and connective tissue disorders
Arthralgia
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Musculoskeletal and connective tissue disorders
Arthritis
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
General disorders
Asthenia
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Musculoskeletal and connective tissue disorders
Back pain
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Infections and infestations
COVID-19
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Skin and subcutaneous tissue disorders
Dermatitis
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Skin and subcutaneous tissue disorders
Dermatitis acneiform
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Skin and subcutaneous tissue disorders
Dermatosis
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Eye disorders
Dry eye
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Respiratory, thoracic and mediastinal disorders
Dyspnoea
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Skin and subcutaneous tissue disorders
Erythema
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Injury, poisoning and procedural complications
Fall
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Infections and infestations
Gastroenteritis
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Nervous system disorders
Headache
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Metabolism and nutrition disorders
Hyperphagia
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Vascular disorders
Hypertension
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Hepatobiliary disorders
Hypertransaminasaemia
100.0%
2/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
100.0%
2/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Metabolism and nutrition disorders
Hypophosphataemia
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Metabolism and nutrition disorders
Increased appetite
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
General disorders
Influenza like illness
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Psychiatric disorders
Initial insomnia
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Psychiatric disorders
Irritability
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Injury, poisoning and procedural complications
Ligament sprain
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Nervous system disorders
Migraine
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Musculoskeletal and connective tissue disorders
Musculoskeletal chest pain
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Musculoskeletal and connective tissue disorders
Musculoskeletal discomfort
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Infections and infestations
Nasopharyngitis
100.0%
2/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Gastrointestinal disorders
Nausea
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Skin and subcutaneous tissue disorders
Night sweats
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Nervous system disorders
Paraesthesia
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Infections and infestations
Pharyngitis
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Skin and subcutaneous tissue disorders
Rash
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Infections and infestations
Rhinitis
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Investigations
SARS-CoV-2 test positive
100.0%
2/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Nervous system disorders
Somnolence
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Musculoskeletal and connective tissue disorders
Synovitis
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Cardiac disorders
Tachycardia
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Musculoskeletal and connective tissue disorders
Tendon disorder
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Gastrointestinal disorders
Tongue geographic
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Infections and infestations
Upper respiratory tract infection
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Infections and infestations
Urinary tract infection
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Metabolism and nutrition disorders
Vitamin D deficiency
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
Investigations
Weight increased
0.00%
0/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.
50.0%
1/2 • All-cause mortality: Up to approximately 6 years 4 months; SAEs and Other (Non-Serious) AEs: From first dose up to end of the study (approximately 6 years)
The Safety Set consisted of all participants who received any amount of investigational product.

Additional Information

Medical Director

Takeda

Phone: +1-877-825-3327

Results disclosure agreements

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