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Ad26.RSV.PreF-based Vaccine

Phase 3

Respiratory Syncytial Virus Prevention | Monoclonal antibody | Respiratory |Johnson & Johnson|Last Updated: May 25, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindCONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment1,005
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05101486A Study of an Ad26.RSV.PreF-based Regimen at the End of Shelf-life in Adults Aged 60 to 75 YearsPHASE3 COMPLETED 755Nov 1, 2021Sep 20, 2022May 25, 202513 United States
NCT05083585A Study Evaluating the Immunogenicity of Different Clinical Trial Materials of Ad26.RSV.preF- Based Vaccine in Adults Aged 60 - 75 Years OldPHASE3 COMPLETED 250Oct 8, 2021Sep 22, 2022May 25, 20259 United States
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Study Endpoints
Primary Endpoints
Geometric Mean Titers (GMTs) of Prefusion F-protein (preF) Antibodies as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) 14 Days Post Vaccination
14 days post vaccination on Day 1 (Day 15)

GMTs of pre-F antibodies as assessed by ELISA at 14 days post administration of Ad26/protein preF RSV vaccine were reported.

Secondary Endpoints
Respiratory Syncytial Virus (RSV) A2 Strain Neutralizing Antibody Titers at 14 Days Post Vaccination
14 days post vaccination on Day 1 (Day 15)
Number of Participants With Solicited Local Adverse Events (AEs) for 7 Days Post Vaccination
Up to Day 7 post vaccination on Day 1 (up to Day 8)
Number of Participants With Solicited Systemic AEs for 7 Days Post Vaccination
Up to Day 7 post vaccination on Day 1 (up to Day 8)
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
Group 1: Ad26.RSV.PreF-based VaccineEXPERIMENTALParticipants will receive a single intramuscular (IM) injection of Ad26.RSV.PreF-based vaccine on Day 1 (non-aged lot).
Group 2: Ad26.RSV.PreF-based VaccineEXPERIMENTALParticipants will receive a single IM injection of Ad26.RSV.PreF-based vaccine on Day 1 (aged lot 1).
Group 3: Ad26.RSV.PreF-based VaccineEXPERIMENTALParticipants will receive a single IM injection of Ad26.RSV.PreF-based vaccine on Day 1 (aged lot 2).
Group 1: Phase 3 Clinical Trial Material (CTM)EXPERIMENTALParticipants will receive a single intramuscular (IM) injection of adenovirus serotype 26 (Ad26). respiratory syncytial virus (RSV). prefusion conformation-stabilized F protein (preF)-based vaccine on Day 1, which is a Phase 3 CTM.
Group 2: Phase 2b CTMEXPERIMENTALParticipants will receive a single IM injection of Ad26.RSV.preF-based vaccine on Day 1, which is a Phase 2b CTM.
Interventions
NameTypeDescription
Ad26.RSV.PreF-based VaccineBIOLOGICALAd26.RSV.PreF-based Vaccine will be administered as single IM injection.
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Eligibility Criteria
Age Range60 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites13

Inclusion Criteria: * Before randomization, a participant must be: a) postmenopausal (postmenopausal state is defined as no menses for 12 months without an alternative medical cause); and b) not intending to conceive by any methods * From the time of vaccination through 3 months after vaccination, ...

Countries:United States
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