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BNT162b4

Phase 1

SARS-CoV-2 Infection | Monoclonal antibody | Infectious Disease |BioNTech SE|Last Updated: Jan 13, 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
RandomizedDouble-BlindACTIVE_CONTROLLEDBiomarker
Total Trials1
Total Enrollment383
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05541861Safety and Effects of an Investigational COVID-19 Vaccine as Booster in Healthy PeoplePHASE1 COMPLETED 383Nov 8, 2022Nov 22, 2024Jan 13, 202617 United States
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Study Endpoints
Primary Endpoints
Number of Participants With Solicited Local Reactions- Post Dose 1
Up to 7 days post-dose1

A solicited reaction was defined as an adverse reaction observed and reported under the conditions (symptom and onset) and pre-listed (that is, solicited) in the e-diary. Solicited local reactions included: pain, erythema/redness, and induration/swelling.

Number of Participants With Solicited Local Reactions- Post Dose 2
Up to 7 days post-dose 2

A solicited reaction was defined as an adverse reaction observed and reported under the conditions (symptom and onset) and pre-listed (that is, solicited) in the e-diary. Solicited local reactions included: pain, erythema/redness, and induration/swelling. Data for this outcome measure was not collected and analyzed for Cohort 1, and Comparator Cohorts A and B, as these Cohorts did not receive Dose 2 of the study drugs.

Number of Participants With Solicited Systemic Events- Post Dose 1
Up to 7 days post-dose 1

A solicited reaction was defined as an adverse reaction observed and reported under the conditions (symptom and onset) pre-listed (i.e., solicited) in the e-diary. Solicited systemic reactions included: vomiting, diarrhea, headache, fatigue, myalgia, arthralgia, chills, and fever.

Number of Participants With Solicited Systemic Events- Post Dose 2
Up to 7 days post-dose 2

A solicited reaction was defined as an adverse reaction observed and reported under the conditions (symptom and onset) pre-listed (i.e., solicited) in the e-diary. Solicited systemic reactions included: vomiting, diarrhea, headache, fatigue, myalgia, arthralgia, chills, and fever.

Number of Participants With Adverse Events (AEs)-Post Dose 1
Up to 28 days post-dose 1

An AE was defined as any untoward medical occurrence in a participant administered with a pharmaceutical product, and which did not necessarily have a causal relationship with this treatment.

Number of Participants With Adverse Events (AEs)-Post Dose 2
Up to 28 days post-dose 2

An AE was defined as any untoward medical occurrence in a participant administered with a pharmaceutical product, and which did not necessarily have a causal relationship with this treatment.

Number of Participants With Serious Adverse Events (SAEs)-Post Dose 1
Up to 6 to 7 months post-dose 1 for Cohorts 1 to 4 and Comparator Cohorts; and up to 2 months post-dose 1 for Cohort 5

An SAE was defined as any untoward medical occurrence that, at any dose, resulted in death and was life-threatening. It also included any event requiring hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, caused a congenital anomaly or birth defect, or any other event determined as SAE as per medical or scientific judgment.

Number of Participants With Serious Adverse Events (SAEs)-Post Dose 2
Up to 6 to 7 months post-dose 2 for Cohorts 2 to 4; and up to 3 months post-dose 2 for Cohort 5

An SAE was defined as any untoward medical occurrence that, at any dose, resulted in death and was life-threatening. It also included any event requiring hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, caused a congenital anomaly or birth defect, or any other event determined as SAE as per medical or scientific judgment.

Number of Participants With Clinically Significant Laboratory Abnormalities: Hematological Parameters-Post Dose 1
At Day 3 post-Dose 1; at Day 7 post-dose 1

Participants with hematological abnormalities for basophils, eosinophils, erythrocytes, hematocrit, hemoglobin, leukocytes, lymphocytes, monocytes, neutrophils and platelets were analyzed and only clinically significant abnormal data was reported in the outcome measure.

Number of Participants With Clinically Significant Laboratory Abnormalities: Hematological Parameters-Post Dose 2
At Day 7 post-dose 2

Participants with hematological abnormalities for basophils, eosinophils, erythrocytes, hematocrit, hemoglobin, leukocytes, lymphocytes, monocytes, neutrophils and platelets were analyzed and only clinically significant abnormal data was reported in the outcome measure.

Number of Participants With Clinically Significant Laboratory Abnormalities: Clinical Chemistry-Post Dose 1
At Day 3 post-Dose 1; at Day 7 post-dose 1

Participants with laboratory abnormalities (clinical chemistry) for alanine aminotransferase, albumin, alkaline phosphatase, amylase, aspartate aminotransferase, C-reactive protein, creatinine, direct bilirubin, gamma glutamyl transferase, glucose, high sensitivity C reactive protein, indirect bilirubin, lipase, total bilirubin, troponin I type 3 and urea nitrogen were analyzed and only abnormal clinically significant data was reported in the outcome measure.

Number of Participants With Clinically Significant Laboratory Abnormalities: Clinical Chemistry-Post Dose 2
At Day 7 post-dose 2

Participants with laboratory abnormalities (clinical chemistry) for alanine aminotransferase, albumin, alkaline phosphatase, amylase, aspartate aminotransferase, C-reactive protein, creatinine, direct bilirubin, gamma glutamyl transferase, glucose, high sensitivity C reactive protein, indirect bilirubin, lipase, total bilirubin, troponin I type 3 and urea nitrogen were analyzed and only clinically significant abnormal data was reported in the outcome measure.

Number of Participants With Clinically Significant New Electrocardiogram (ECG) Abnormalities -Post Dose 1
At Day 3 post-Dose 1; at Day 7 post-dose 1

Participants with only clinically significant new ECG abnormalities were reported in the outcome measure.

Number of Participants With Clinically Significant New ECG Abnormalities -Post Dose 2
At Day 7 post-dose 2

Participants with only clinically significant new ECG abnormalities were reported in the outcome measure.

Number of Participants With Shift of Laboratory Parameters (Hematology) From Baseline Grade 0 to Worst Grade >=3: Post-dose 1
At Day 3 post-dose 1; at Day 7 post-dose 1

The intensity of AEs and laboratory parameters was graded by the investigator. Grades were defined as: Grade 1 - Mild; does not interfere with the trial participant's usual function; Grade 2 - Moderate; interferes to some extent with the trial participant's usual function; Grade 3 - Severe; interferes significantly with the trial participant's usual function and Grade 4 - Potentially life-threatening; life-threatening consequences, urgent intervention required. Participants with shift change from Baseline Grade 0 to Worst Grade \>=3 were reported in the outcome measure.

Number of Participants With Shift of Laboratory Parameters (Hematology) From Baseline Grade 0 to Worst Grade >=3: Post Dose 2
At Day 7 post-dose 2

The intensity of AEs and laboratory parameters was graded by the investigator. Grades were defined as: Grade 1 - Mild; does not interfere with the trial participant's usual function; Grade 2 - Moderate; interferes to some extent with the trial participant's usual function; Grade 3 - Severe; interferes significantly with the trial participant's usual function and Grade 4 - Potentially life-threatening; life-threatening consequences, urgent intervention required. Participants with shift change from Baseline Grade 0 to Worst Grade \>=3 were reported in the outcome measure.

Number of Participants With Shift of Laboratory Parameters (Clinical Chemistry) From Baseline Grade 0 to Worst Grade >=3: Post Dose 1
At Day 3 post-dose 1; at Day 7 post-dose 1

The intensity of AEs and laboratory parameters was graded by the investigator. Grades were defined as: Grade 1 - Mild; does not interfere with the trial participant's usual function; Grade 2 - Moderate; interferes to some extent with the trial participant's usual function; Grade 3 - Severe; interferes significantly with the trial participant's usual function and Grade 4 - Potentially life-threatening; life-threatening consequences, urgent intervention required. Participants with shift change from Baseline Grade 0 to Worst Grade \>=3 were reported in the outcome measure.

Number of Participants With Shift of Laboratory Parameters (Clinical Chemistry) From Baseline Grade 0 to Worst Grade >=3: Post-dose 2
At Day 7 post-dose 2

The intensity of AEs and laboratory parameters was graded by the investigator. Grades were defined as: Grade 1 - Mild; does not interfere with the trial participant's usual function; Grade 2 - Moderate; interferes to some extent with the trial participant's usual function; Grade 3 - Severe; interferes significantly with the trial participant's usual function and Grade 4 - Potentially life-threatening; life-threatening consequences, urgent intervention required. Participants with shift change from Baseline Grade 0 to Worst Grade \>=3 were reported in the outcome measure.

Secondary Endpoints
Geometric Mean Titers (GMTs) for SARS-CoV-2 Neutralizing Antibody Ancestral Strain-Post Dose 1
At Pre-dose and Day 28 post dose-1
Geometric Mean Titers (GMTs) for SARS-CoV-2 Neutralizing Antibody Ancestral Strain-Post Dose 2
At Pre-dose 2 and Day 28 post-dose 2
Geometric Mean Titers (GMTs) for SARS-CoV-2 Neutralizing Antibody Omicron Strains (SARS-CoV-2 Omicron BA.4/BA.5)- Post Dose 1
At Pre-dose and Day 28 post-dose 1
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelSEQUENTIAL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
Cohort 1: BNT162b2 Bivalent 30 mcg + BNT162b4 5 mcg (Aged 18-55 Years)EXPERIMENTALParticipants aged 18-55 years received an intramuscular injection of BNT162b2 Bivalent 30 mcg along with BNT162b4 5 mcg at Day 1.
Cohort 2: BNT162b2 Bivalent 30 mcg + BNT162b4 10 mcg (Aged 18-55 Years)EXPERIMENTALParticipants aged 18-55 years received an intramuscular injection of BNT162b2 Bivalent 30 mcg along with BNT162b4 10 mcg at Day 1. Participants who consented to receive a second dose of the study drugs received BNT162b2 Bivalent 30 mcg along with BNT162b4 10 mcg again as Dose 2 at 6 to 7 months after Dose 1.
Cohort 3a: BNT162b2 Bivalent/Monovalent 30 mcg + BNT162b4 15 mcg (Aged 18-55 Years)EXPERIMENTALParticipants aged 18-55 years received a dose of BNT162b2 Bivalent 30 mcg (Omicron BA.4/BA.5) along with BNT162b4 15 mcg at Day 1, Participants who consented to receive a second dose of the study drugs received BNT162b2 Monovalent (OMI XBB.1.5) 30 mcg along with BNT162b4 15 mcg again as Dose 2 at 6 to 7 months after Dose 1.
Cohort 3b: BNT162b2 Bivalent/Monovalent 30 mcg + BNT162b4 15 mcg (Aged >55 Years)EXPERIMENTALParticipants aged \>55 years received a dose of BNT162b2 Bivalent 30 mcg (Omicron BA.4/BA.5) along with BNT162b4 15 mcg at Day 1. Participants who consented to receive a second dose of the study drugs received BNT162b2 Monovalent (OMI XBB.1.5) 30 mcg along with BNT162b4 15 mcg again as Dose 2 at 6 to 7 months after Dose 1.
Cohort 4a: BNT162b2 Bivalent/Monovalent 30 mcg + BNT162b4 30 mcg (Aged 18-55 Years)EXPERIMENTALParticipants aged 18-55 years received a dose of BNT162b2 Bivalent 30 mcg (Omicron BA.4/BA.5) along with BNT162b4 30 mcg at Day 1. Participants who consented to receive a second dose of the study drugs received BNT162b2 Monovalent (OMI XBB.1.5) 30 mcg along with BNT162b4 30 mcg again as Dose 2 at 6 to 7 months after Dose 1.
Cohort 4b: BNT162b2 Bivalent/Monovalent 30 mcg + BNT162b4 30 mcg (Aged >55 Years)EXPERIMENTALParticipants aged \>55 years received a dose of BNT162b2 Bivalent 30 mcg (Omicron BA.4/BA.5) along with BNT162b4 30 mcg at Day 1. Participants who consented to receive a second dose of the study drugs received BNT162b2 Monovalent (OMI XBB.1.5) 30 mcg along with BNT162b4 30 mcg again as Dose 2 at 6 to 7 months after Dose 1.
Comparator A: BNT162b2 Bivalent 30 mcg (Aged 18-55 Years)ACTIVE_COMPARATORParticipants aged 18-55 years received one intramuscular injection of BNT162b2 30 mcg at Day 1.
Comparator B: BNT162b2 Bivalent 30 mcg (Aged >55 Years)ACTIVE_COMPARATORParticipants aged \>55 years received one intramuscular injection of BNT162b2 30 mcg at Day 1.
Cohort 5: BNT162b4 30 mcg (Aged 18-55 Years)EXPERIMENTALParticipants aged 18-55 years received two intramuscular injections of BNT162b4 30 mcg at Day 1 and 2 months post-Dose 1, respectively.
Interventions
NameTypeDescription
BNT162b2 Bivalent (original/Omicron BA.4/BA.5) 30 mcgBIOLOGICALAnti-viral RNA vaccine for active immunization against COVID-19 administered as intramuscular injection.
BNT162b4 5 mcgBIOLOGICALAnti-viral RNA vaccine for active immunization against COVID-19 administered as intramuscular injection.
BNT162b4 10 mcgBIOLOGICALAnti-viral RNA vaccine for active immunization against COVID-19 administered as intramuscular injection.
BNT162b4 15 mcgBIOLOGICALAnti-viral RNA vaccine for active immunization against COVID-19 administered as intramuscular injection.
BNT162b4 30 mcgBIOLOGICALAnti-viral RNA vaccine for active immunization against COVID-19 administered as intramuscular injection.
BNT162b2 Monovalent (OMI XBB.1.5) 30 mcgBIOLOGICALAnti-viral RNA vaccine for active immunization against COVID-19 administered as intramuscular injection.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersYes
Study Sites17

Inclusion Criteria (applicable to all dose groups unless specified otherwise): * Had given informed consent by signing and dating the informed consent form (ICF) before initiation of any trial-specific procedures. * Were willing and able to comply with scheduled visits, treatment schedule, laborato...

Countries:United States
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