A Study to Learn About New COVD-19 RNA Vaccine Candidates for New Variants in Healthy Individuals

NCT ID: NCT05997290

Last Updated: 2025-03-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2/PHASE3

Total Enrollment

1051 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-08-10

Study Completion Date

2025-03-13

Brief Summary

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The purpose of this clinical protocol is to learn about the safety, tolerability, and immunogenicity of new BNT162b2 RNA-based vaccine candidates targeting new variants of SARS-CoV-2 in healthy people.

Substudy A:

* This study will evaluate the safety, tolerability, and immunogenicity of BNT162b2 (Omi XBB.1.5) given as a single 30 µg dose,

* in people who are 12 years of age and older,
* who previously received at least 3 doses of a US-authorized mRNA COVID-19 vaccine, with the most recent dose being an Omicron BA.4/BA.5-adapted bivalent vaccine received at least 150 days before the study vaccination (Visit 1).
* The study is about 6 months long for each participant.
* Participants will have at least 5 visits to the clinic.
* At each clinic visit a blood sample will be taken.
* At least 1 nasal swab will taken.

Substudy B:

* This study will evaluate the safety, tolerability, and immunogenicity of BNT162b2 (Omi XBB.1.5) given as a single 30 µg dose,

* in people who are 12 years of age and older,
* who are COVID-19 vaccine-naïve
* who have had any positive SARS-CoV-2 test result \>28 days before study vaccine administration.
* The study is about 6 months long for each participant.
* Participants will have at least 5 visits to the clinic.
* At each clinic visit a blood sample will be taken.
* At least 1 nasal swab will taken.

Substudy C:

* This study will evaluate the safety, tolerability, and immunogenicity of BNT162b2 (Omi JN.1) and BNT162b2 (Omi KP.2) given as a single 30 µg dose to:

* Cohort 1: people who are 18 years of age and older, who will receive BNT162b2 (Omi JN.1), and,
* Cohort 2: people who are 12 years of age and older, who will receive BNT162b2 (Omi JN.1), and,
* Cohort 3: people who are 18 years of age and older who will receive BNT162b2 (Omi KP.2).
* Participants may have never received a COVID-19 vaccine or, may have previously received COVID-19 vaccine(s), with the most recent dose received at least 150 days before the study vaccination (Visit 1).
* The study is about 6 months long for each participant.
* Participants will have at least 6 visits (Cohorts 1 and 3) or at least 5 visits (Cohort 2) to the clinic.
* At each clinic visit a blood sample will be taken.
* At least 1 nasal swab will taken.

Detailed Description

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Conditions

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SARS-CoV-2 Infection COVID-19

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Phase 2/3, controlled study
Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Open-label

Study Groups

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SSA: Group 1

Participants 12 years of age and older, COVID-19 vaccine-experienced will receive 30 µg of BNT162b2 (Omi XBB.1.5) at Visit 1.

Group Type EXPERIMENTAL

BNT162b2 (Omi XBB.1.5)

Intervention Type BIOLOGICAL

BNT162b2 monovalent (Omicron XBB.1.5)

SSB: Group 2

Participants 12 years of age and older who were previously exposed to SARS-CoV-2 and are COVID-19 vaccine-naïve will receive 30 μg of BNT162b2 (Omi XBB.1.5) at Visit 1

Group Type EXPERIMENTAL

BNT162b2 (Omi XBB.1.5)

Intervention Type BIOLOGICAL

BNT162b2 monovalent (Omicron XBB.1.5)

SSC: Group 3

Cohort 1 - Participants 18 years of age and older will receive 30 µg of BNT162b2 (Omi JN.1) at Visit 1.

Group Type EXPERIMENTAL

BNT162b2 (Omi JN.1)

Intervention Type BIOLOGICAL

BNT162b2 monovalent (Omicron JN.1)

SSC: Group 4

Cohort 2 - Participants 12 years of age and older will receive 30 µg of BNT162b2 (Omi JN.1) at Visit 1.

Group Type EXPERIMENTAL

BNT162b2 (Omi JN.1)

Intervention Type BIOLOGICAL

BNT162b2 monovalent (Omicron JN.1)

SSC - Group 5

Cohort 3 - Participants 18 years of age and older who will receive 30 µg of BNT162b2 (Omi KP.2) at Visit 1.

Group Type EXPERIMENTAL

BNT162b2 (Omi KP.2)

Intervention Type BIOLOGICAL

BNT162b2 monovalent (Omicron KP.2)

Interventions

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BNT162b2 (Omi XBB.1.5)

BNT162b2 monovalent (Omicron XBB.1.5)

Intervention Type BIOLOGICAL

BNT162b2 (Omi JN.1)

BNT162b2 monovalent (Omicron JN.1)

Intervention Type BIOLOGICAL

BNT162b2 (Omi KP.2)

BNT162b2 monovalent (Omicron KP.2)

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Received at least 3 prior doses of a US-authorized mRNA COVID-19 vaccine, with the most recent dose being a US-authorized Omicron BA.4/BA.5-adapted bivalent vaccine received at least 150 days before Visit 1 (Day 1).
* 12 years of age and older
* Healthy participants (stable pre-existing disease permitted).
* Willing and able to comply with all scheduled visits/contacts, study procedures and lifestyle considerations.
* Capable of giving, or parent(s)/legal guardian capable of giving, signed informed consent.


* COVID-19 vaccine-naïve.
* Any positive SARS-CoV-2 test result \>28 days before study intervention administration.
* 12 years of age and older.
* Healthy participants (stable pre-existing disease permitted).
* Willing and able to comply with all scheduled visits/contacts, study procedures and lifestyle considerations.
* Capable of giving or parent(s)/legal guardian capable of giving, signed informed consent.


* Cohort 1: 18 years of age and older
* Cohort 2: 12 years of age and older
* Cohort 3: 18 years of age and older
* Healthy participants (stable pre-existing disease permitted).
* Willing and able to comply with all scheduled visits/contacts, study procedures and lifestyle considerations.
* Capable of giving, or parent(s)/legal guardian capable of giving, signed informed consent.

Exclusion Criteria

* History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study vaccines.
* Immunocompromised with known or suspected immunodeficiency, as determined by history and/or laboratory/physical examination.
* Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection.
* Women who are pregnant or breastfeeding.
* Any medical or psychiatric condition, or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
* History of myocarditis or pericarditis.
* Receipt of systemic treatment with known immunosuppressant medications (including cytotoxic agents or systemic corticosteroids, eg, for cancer or an autoimmune disease), or radiotherapy, within 60 days before enrollment or planned receipt through conclusion of the study.
* Receipt of blood/plasma products, immunoglobulin, or monoclonal antibodies, used for the treatment or prevention of COVID-19 or those that are considered immunosuppressive, from 60 days before study vaccination or planned receipt throughout the study.
* Participation in other studies involving receipt of other study intervention within 28 days before enrollment. Anticipated participation in other studies involving other study intervention from enrollment through the end of this study.
* Investigator site staff directly involved in the conduct of the study and their family members, site staff otherwise supervised by the investigator, and sponsor and sponsor delegate employees directly involved in the conduct of the study and their family members.

SSB


* History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study vaccines.
* Immunocompromised individuals with known or suspected immunodeficiency, as determined by history and/or laboratory/physical examination.
* Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection.
* Women who are pregnant or breastfeeding.
* Any medical or psychiatric condition, including recent (within the past year) or active suicidal ideation/behavior, or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
* History of myocarditis or pericarditis.
* Receipt of systemic treatment with known immunosuppressant medications (including cytotoxic agents or systemic corticosteroids\*, eg, for cancer or an autoimmune disease), or radiotherapy, within 60 days before enrollment or planned receipt through conclusion of the study.
* Receipt of blood/plasma products, immunoglobulin, or monoclonal antibodies used for the treatment or prevention of COVID-19 or those that are considered immunosuppressive, from 60 days before study intervention administration or planned receipt throughout the study.
* Participation in other studies involving receipt of other study intervention within 28 days before enrollment. Anticipated participation in other studies involving other study intervention from enrollment through the end of this study.
* Investigator site staff directly involved in the conduct of the study and their family members, site staff otherwise supervised by the investigator, and sponsor and sponsor delegate employees directly involved in the conduct of the study and their family members.

SSC


* History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study vaccines.
* Immunocompromised with known or suspected immunodeficiency, as determined by history and/or laboratory/physical examination.
* Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection.
* Women who are pregnant or breastfeeding.
* Any medical or psychiatric condition, or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
* History of myocarditis or pericarditis.
* Receipt of systemic treatment with known immunosuppressant medications (including cytotoxic agents or systemic corticosteroids, eg, for cancer or an autoimmune disease), or radiotherapy, within 60 days before enrollment or planned receipt through conclusion of the study.
* Receipt of blood/plasma products, immunoglobulin, or monoclonal antibodies, used for the treatment or prevention of COVID-19 or those that are considered immunosuppressive, from 60 days before study vaccination or planned receipt throughout the study.
* Receipt of a COVID-19 vaccine less than 150 days before study intervention administration Visit 1 (Day 1).
* Participation in other studies involving receipt of other study intervention within 28 days before enrollment. Anticipated participation in other studies involving other study intervention from enrollment through the end of this study.
* Investigator site staff directly involved in the conduct of the study and their family members, site staff otherwise supervised by the investigator, and sponsor and sponsor delegate employees directly involved in the conduct of the study and their family members.
Minimum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Pfizer

INDUSTRY

Sponsor Role collaborator

BioNTech SE

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pfizer CT.gov Call Center

Role: STUDY_DIRECTOR

Pfizer

Locations

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North Alabama Research Center

Athens, Alabama, United States

Site Status

Medical Affiliated Research Center

Huntsville, Alabama, United States

Site Status

Alliance for Multispecialty Research, LLC

Mobile, Alabama, United States

Site Status

Epic Medical Research - Surprise

Surprise, Arizona, United States

Site Status

Alliance for Multispecialty Research, LLC

Tempe, Arizona, United States

Site Status

West Coast Research

Dublin, California, United States

Site Status

California Research Foundation

San Diego, California, United States

Site Status

Bayview Research Group, LLC

Valley Village, California, United States

Site Status

Diablo Clinical Research, Inc.

Walnut Creek, California, United States

Site Status

Clinical Research Consulting

Milford, Connecticut, United States

Site Status

Indago Research & Health Center, Inc

Hialeah, Florida, United States

Site Status

Clinical Neuroscience Solutions, Inc. dba CNS Healthcare

Jacksonville, Florida, United States

Site Status

Care Research - West Flagler Street

Miami, Florida, United States

Site Status

Acevedo Clinical Research Associates

Miami, Florida, United States

Site Status

Clinical Neuroscience Solutions, Inc.

Orlando, Florida, United States

Site Status

Clinical Research Atlanta

Stockbridge, Georgia, United States

Site Status

East-West Medical Research Institute

Honolulu, Hawaii, United States

Site Status

Kentucky Pediatric/ Adult Research

Bardstown, Kentucky, United States

Site Status

Bio-Kinetic Clinical Applications, LLC dba QPS-MO

Springfield, Missouri, United States

Site Status

Bio-Kinetic Clinical Applications LLC DBA QPS_MO (Patient Screening Only)

Springfield, Missouri, United States

Site Status

M3 Wake Research, Inc.

Raleigh, North Carolina, United States

Site Status

Centricity Research Columbus Ohio Multispecialty

Columbus, Ohio, United States

Site Status

Dayton Clinical Research

Dayton, Ohio, United States

Site Status

Senders Pediatrics

South Euclid, Ohio, United States

Site Status

Alliance for Multispecialty Research, LLC

Knoxville, Tennessee, United States

Site Status

Alliance for Multispecialty Research, LLC

Knoxville, Tennessee, United States

Site Status

Clinical Neuroscience Solutions Inc.

Memphis, Tennessee, United States

Site Status

Zenos Clinical Research

Dallas, Texas, United States

Site Status

Epic Medical Research - DeSoto

DeSoto, Texas, United States

Site Status

DM Clinical Research - Bellaire

Houston, Texas, United States

Site Status

SMS Clinical Research

Mesquite, Texas, United States

Site Status

IMA Clinical Research San Antonio

San Antonio, Texas, United States

Site Status

DM Clinical Research

Tomball, Texas, United States

Site Status

Alliance for Multispecialty Research, LLC

Layton, Utah, United States

Site Status

J. Lewis Research, Inc. / Foothill Family Clinic

Salt Lake City, Utah, United States

Site Status

J. Lewis Research, Inc. / Foothill Family Clinic South

Salt Lake City, Utah, United States

Site Status

Alliance for Multispecialty Research, LLC

Norfolk, Virginia, United States

Site Status

Countries

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United States

References

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Diya O, Gayed J, Lowry FS, Ma H, Bangad V, Mensa F, Zou J, Xie X, Hu Y, Cutler M, Belanger T, Cooper D, Xu X, Mogg R, Tureci O, Sahin U, Swanson KA, Modjarrad K, Anderson AS, Gurtman A, Kitchin N. Safety and Immunogenicity of Monovalent Omicron KP.2-Adapted BNT162b2 COVID-19 Vaccine in Adults: Single-Arm Substudy from a Phase 2/3 Trial. Infect Dis Ther. 2025 Aug;14(8):1973-1987. doi: 10.1007/s40121-025-01185-4. Epub 2025 Jul 1.

Reference Type DERIVED
PMID: 40591130 (View on PubMed)

Diya O, Gayed J, Lowry FS, Ma H, Bangad V, Mensa F, Zou J, Xie X, Hu Y, Cutler M, Belanger T, Cooper D, Xu X, Koury K, Tureci O, Sahin U, Swanson KA, Modjarrad K, Anderson AS, Gurtman A, Kitchin N. A phase 2/3 trial to investigate the safety and immunogenicity of monovalent Omicron JN.1-adapted BNT162b2 COVID-19 vaccine in adults >/=18 years old. Vaccine. 2025 Apr 11;52:126869. doi: 10.1016/j.vaccine.2025.126869. Epub 2025 Feb 24.

Reference Type DERIVED
PMID: 39999538 (View on PubMed)

Gayed J, Bangad V, Xu X, Mensa F, Cutler M, Tureci O, Sahin U, Modjarrad K, Swanson KA, Anderson AS, Gurtman A, Kitchin N; C4591054 Study Group. Immunogenicity of the Monovalent Omicron XBB.1.5-Adapted BNT162b2 COVID-19 Vaccine against XBB.1.5, BA.2.86, and JN.1 Sublineages: A Phase 2/3 Trial. Vaccines (Basel). 2024 Jul 2;12(7):734. doi: 10.3390/vaccines12070734.

Reference Type DERIVED
PMID: 39066372 (View on PubMed)

Gayed J, Diya O, Lowry FS, Xu X, Bangad V, Mensa F, Zou J, Xie X, Hu Y, Lu C, Cutler M, Belanger T, Cooper D, Koury K, Anderson AS, Tureci O, Sahin U, Swanson KA, Modjarrad K, Gurtman A, Kitchin N; C4591054 Study Group. Safety and Immunogenicity of the Monovalent Omicron XBB.1.5-Adapted BNT162b2 COVID-19 Vaccine in Individuals >/=12 Years Old: A Phase 2/3 Trial. Vaccines (Basel). 2024 Jan 24;12(2):118. doi: 10.3390/vaccines12020118.

Reference Type DERIVED
PMID: 38400102 (View on PubMed)

Related Links

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https://pmiform.com/clinical-trial-info-request?StudyID=C4591054

To obtain contact information for a study center near you, click here.

Other Identifiers

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2024-000361-24

Identifier Type: REGISTRY

Identifier Source: secondary_id

NCT05997290

Identifier Type: REGISTRY

Identifier Source: secondary_id

C4591054

Identifier Type: -

Identifier Source: org_study_id

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