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BNT163

Phase 1

Genital Herpes Simplex Type 2 | Monoclonal antibody | Infectious Disease |BioNTech SE|Last Updated: Oct 20, 2025

Target and mechanism

Molecular target4-1BB
Target classProtein
ModalityMonoclonal antibody

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment318

FDA Designations

No designations recorded

Clinical trial landscape

BNT163 · 1 trial · 1 indication

Phase 1 1
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 LesionsGenital Herpes Simplex Type 2
ACTIVE NOT_RECRUITING318 Analytics
PHASE1ACTIVE NOT_RECRUITING
A 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 Lesions
Genital Herpes Simplex Type 2Unlock trial analytics

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 to 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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Frequently asked questions about BNT163

What is BNT163 used for?

BNT163 is an investigational vaccine designed to prevent genital herpes lesions caused by Genital Herpes Simplex Type 2. It is being studied in healthy volunteers and volunteers with recurrent genital herpes to evaluate its safety, tolerability, and immune responses.

What does BNT163 target?

BNT163 targets 4-1BB, a protein involved in immune cell activation. By targeting 4-1BB, the vaccine aims to generate an immune response that may prevent genital herpes lesions. It is a monoclonal antibody modality being developed for infectious disease.

Who makes BNT163?

BNT163 is being developed by BioNTech SE, a biotechnology company traded on the NASDAQ under the ticker BNTX. The company is conducting a Phase 1 clinical trial to study the vaccine's safety and immune responses in participants.

What phase is BNT163 in?

BNT163 is in Phase 1 clinical development. It is an investigational vaccine and has not been approved by regulatory authorities. The ongoing Phase 1 trial is active but not recruiting participants, with an enrollment target of 318.

What clinical trials is BNT163 in?

BNT163 is being studied in a Phase 1 clinical trial with the identifier NCT05432583. The trial is a randomized, double-blind, placebo-controlled study conducted in the United States, enrolling healthy volunteers and individuals with recurrent genital herpes.

Is BNT163 the same as a vaccine for genital herpes?

BNT163 is an investigational vaccine specifically designed to prevent genital herpes lesions caused by Genital Herpes Simplex Type 2. It is not the same as other vaccines; it is a unique candidate being developed by BioNTech SE and is currently in Phase 1 testing.