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Adjuvanted RSVPreF3 vaccine

Phase 2

Respiratory Syncytial Virus Infections | Monoclonal antibody | Respiratory |GSK plc|Last Updated: Mar 6, 2026

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
UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment184
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07092865A Study Evaluating Persistence of the Immune Response of the Adjuvanted Respiratory Syncytial Virus (RSV) Vaccine and the Safety and Immune Response Following Revaccination in Adults 18 Years of Age and Above Who Received Lung or Kidney TransplantPHASE2 RECRUITING 184Aug 6, 2025Jul 16, 2027Mar 6, 202637 United States, Australia +6
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Study Endpoints
Primary Endpoints
RSV-A neutralizing titers expressed as Geometric mean titers (GMTs)
At Visit 1 (Day 1) of the current study

RSV-A neutralizing titers are given as GMTs and are expressed as Estimated Dilution 60 (ED60). GMT is calculated by taking the anti-log of the mean of the log titer transformations.

RSV-B neutralizing titers expressed as GMTs
At Visit 1 (Day 1) of the current study

RSV-B neutralizing titers are given as group GMTs and are expressed as ED60. GMT is calculated by taking the anti-log of the mean of the log titer transformations.

RSV-A neutralizing titers expressed as Mean geometric increase (MGI)
At Visit 1 (Day 1) of the current study over 30 days post last dose in the RSV OA=ADJ-023 study

MGI is defined as the geometric mean of the within participant ratios of two timepoints (ie., ratio of titers observed at Visit 1 over titers observed 30 days post last dose in the RSV OA=ADJ-023 parent study).

RSV-B neutralizing titers expressed as MGI
At Visit 1 (Day 1) of the current study over 30 days post last dose in the RSV OA=ADJ-023 study

MGI is defined as the geometric mean of the within participant ratios of two timepoints (ie., ratio of titers observed at Visit 1 over titers observed 30 days post last dose in the RSV OA=ADJ-023 parent study).

RSV-A neutralizing titers expressed as GMTs
At Visit 2 (Day 31) of the current study

RSV-A neutralizing titers are given as GMTs and are expressed as ED60. GMT is calculated by taking the anti-log of the mean of the log titer transformations.

Secondary Endpoints
GMT ratio of RSV-A neutralizing titers
At Visit 1 (Day 1) of the current study
GMT ratio of RSV-B neutralizing titers
At Visit 1 (Day 1) of the current study
RSV-A neutralizing titers expressed as MGI
At Visit 2 (Day 31) over Visit 1 (Day 1) and at Visit 3 (Day 180) over Visit 1 (Day 1) [each visit of the current study]
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposePREVENTION
Treatment Arms
ArmTypeDescription
IC Revaccination GroupEXPERIMENTALLung or kidney transplant recipients undergoing chronic immunosuppressive therapy who received 1 and 2 doses of the adjuvanted RSVPreF3 vaccine (IC\_1 and IC\_2 groups respectively) in the RSV OA=ADJ-023 parent study will receive a revaccination dose of adjuvanted RSVPreF3 vaccine at Visit 1 (Day 1) in the current study.
Interventions
NameTypeDescription
Adjuvanted RSVPreF3 vaccineBIOLOGICAL1 dose of adjuvanted RSVPreF3 vaccine administered intramuscularly at Visit 1 (Day 1).
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites37

Inclusion Criteria: * Participants of the RSV OA=ADJ-023 study from the Per Protocol Set (Visit 3 for participants in IC\_1 and Visit 4 for participants in IC\_2 group), who received either 1 or 2 doses of the adjuvanted RSVPreF3 vaccine and for whom the immunogenicity data are available. * Partici...

Countries:United StatesAustraliaCanadaGermanyItalyJapanSouth KoreaSpain
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT07092865primaryCompletionDate: changed
LOWMay 24, 2026NCT07092865studyFirstPostDate: changed