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BNT163

Phase 1

Genital Herpes Simplex Type 2 | Monoclonal antibody | Infectious Disease |BioNTech SE|Last Updated: Oct 20, 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-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment318
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05432583A Clinical Trial in Healthy Volunteers and Volunteers With Recurrent Genital Herpes to Study the Safety, Tolerability, and Immune Responses After Vaccination With an Investigational Vaccine Designed to Prevent Genital Herpes LesionsPHASE1 ACTIVE NOT_RECRUITING 318Dec 8, 2022Oct 1, 2026Oct 20, 20256 United States
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Study Endpoints
Primary Endpoints
Frequency of solicited local reactions at the injection site (pain, erythema/redness, induration/swelling) recorded up to 7 days after each dose
Up to 7 days after each dose

For each dose level (DL) per BNT163 dosing schedule and for the combined placebo group.

Frequency of solicited systemic reactions (vomiting, diarrhea, headache, fatigue/tiredness, myalgia, arthralgia, chills, and fever) recorded up to 7 days after each dose
Up to 7 days after each dose

For each DL per BNT163 dosing schedule and for the combined placebo group.

Percentage of participants with at least one unsolicited adverse event (AE) occurring up to 28 days after each dose
From Day 1 up to Day 197

For each DL per BNT163 dosing schedule and for the combined placebo group.

Percentage of participants in each cohort with at least one serious AE, or AE of special interest, or medically attended AE occurring up to 24 weeks post-Dose 3 (Parts A & B) or post-Dose 2 (Part C)
From Day 1 up to Day 337

For each DL per BNT163 dosing schedule and for the combined placebo group.

Number of unsolicited AEs occurring up to 28 days after each dose
From Day 1 up to Day 197

For each DL per BNT163 dosing schedule and for the combined placebo group.

Percentage of unsolicited AEs occurring up to 28 days after each dose
From Day 1 up to Day 197

For each DL per BNT163 dosing schedule and for the combined placebo group.

Secondary Endpoints
Geometric mean titer (GMT) at each time point
From Day 1 up to Day 337
Geometric mean fold (GMF) change from baseline of neutralizing and binding antibody titers to each time point after vaccination
From Day 1 up to Day 337
Part A and B only - Percentage of participants with seroconversion defined as a minimum of 4-fold increase from baseline of neutralizing and binding antibody titers to each subsequent time point after vaccination
From Day 1 up to Day 337
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelSEQUENTIAL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
Part A - BNT163EXPERIMENTALEscalating dose levels
Part A - PlaceboPLACEBO_COMPARATORIsotonic NaCl solution (0.9%)
Part B - BNT163 Dose 1EXPERIMENTAL -
Part B - BNT163 Dose 2EXPERIMENTAL -
Part C - BNT163EXPERIMENTALOne fix dose level of BNT163
Part C - PlaceboPLACEBO_COMPARATORIsotonic NaCl solution (0.9%)
Interventions
NameTypeDescription
BNT163BIOLOGICALAnti-viral ribonucleic acid (RNA) vaccine for active immunization against HSV-2 administered as intramuscular injection
PlaceboOTHERPlacebo
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Eligibility Criteria
Age Range18 Years — 55 Years
SexALL
Healthy VolunteersYes
Study Sites6

Inclusion Criteria (applicable to all participants and all parts unless otherwise specified): * Have given informed consent by signing and dating the informed consent form (ICF) before initiation of any trial-specific procedures. * Are aged 18 to 55 years, have a body mass index over 18.5 kg/m\^2 a...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT05432583primaryCompletionDate: changed
LOWMay 24, 2026NCT05432583studyFirstPostDate: changed