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mRNA-04 vaccine 10μg

Phase 1

COVID-19 | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: May 28, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment114

FDA Designations

No designations recorded

Clinical trial landscape

mRNA-04 vaccine 10μg · 1 trial · 1 indication

Phase 1 1
NCT05972993A Safety and Immune Response Study to Evaluate Varying Doses of an mRNA Vaccine Against Coronavirus Disease 2019 (COVID-19) in Healthy AdultsCOVID-19
COMPLETED114 Analytics
PHASE1COMPLETED
A Safety and Immune Response Study to Evaluate Varying Doses of an mRNA Vaccine Against Coronavirus Disease 2019 (COVID-19) in Healthy Adults
COVID-19Unlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Any Solicited Administration Site Events
Day 1 to Day 7

The solicited administration site events are pain, redness, swelling and lymphadenopathy (axillary swelling/ tenderness on the same side of the body as the site of injection). Any = occurrence of the event regardless of intensity grade.

Number of Participants With Any Solicited Systemic Events
Day 1 to Day 7

The solicited systemic events are fever, headache, myalgia (muscle pain), arthralgia (joint pain), fatigue (tiredness), chills, abdominal pain, vomiting and diarrhea. Fever is defined as body temperature ≥38ºC; preferred location for measuring the temperature is oral. Any = occurrence of the event regardless of intensity grade.

Number of Participants With Any Unsolicited Adverse Events (AEs)
Day 1 to Day 30

An unsolicited AE is an AE that is either not included in the list of solicited events or can be included in the list of solicited events but with an onset outside the specified period of follow-up for solicited events. Unsolicited AEs include both serious and nonserious AEs. Any = occurrence of the event regardless of intensity grade.

Number of Participants With Any Hematological and Biochemical Laboratory Abnormalities
Day 1 to Day 15

The hematological and biochemical parameters included alanine aminotransferase (ALT), alkaline phosphatase (ALP), aspartate aminotransferase (AST), total bilirubin, creatinine, direct bilirubin, basophils, eosinophils increase, erytrocytes, hemoglobin decrease, lymphocytes decrease, mean corpuscular hemoglobin, mean corpuscular volume, monocytes, neutrophils decrease, platelets decrease, white blood cells (WBC) increase. Below = value below the laboratory reference range defined for the specified visit and laboratory parameter; Within = value within the laboratory reference range defined for the specified visit and laboratory parameter; Above = value above the laboratory reference range defined for the specified visit and laboratory parameter.

Number of Participants With Any Medically Attended Adverse Events (MAAEs)
Day 1 to Day 31

A MAAE is an AE for which the participant received medical attention including any symptom or illness requiring hospitalization, or an emergency room visit, or visit to/by a healthcare professional. Any = occurrence of the event regardless of intensity grade.

Number of Participants With Any Serious Adverse Events (SAEs)
Day 1 to Day 31

An SAE is defined as any untoward medical occurrence that results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant, abnormal pregnancy outcome or any other situation as determined by the investigator. Any = occurrence of the event regardless of intensity grade.

Number of Participants With Any Adverse Events of Special Interest (AESIs)
Day 1 to Day 31

AESIs include potential immune-mediated diseases (pIMDs) which are autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have an autoimmune etiology, myocarditis, and pericarditis, virologically confirmed COVID-19 cases, anaphylaxis, or severe hypersensitivity within 24 hours after study investigational product administration. Any = occurrence of the event regardless of intensity grade.

Secondary Endpoints

Number of Participants With Any MAAEs
Throughout the study period (Day 1 to Month 6)
Number of Participants With Any SAEs
Throughout the study period (Day 1 to Month 6)
Number of Participants With Any AESIs
Throughout the study period (Day 1 to Month 6)
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelSEQUENTIAL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Part A, Group 1: mRNA CR-04 10 µgEXPERIMENTALParticipants received mRNA 10 micrograms (µg) administered on Day 1.
Part A, Group 1: PlaceboPLACEBO_COMPARATORParticipants received placebo dose administered on Day 1.
Part A, Group 2: mRNA CR-04 30 µgEXPERIMENTALParticipants received placebo dose administered on Day 1.
Part A, Group 2: PlaceboPLACEBO_COMPARATORParticipants received placebo dose administered on Day 1.
Part A, Group 3: mRNA CR-04 100 µgEXPERIMENTALParticipants received mRNA 100 µg administered on Day 1
Part A, Group 3: PlaceboPLACEBO_COMPARATORParticipants received placebo dose administered on Day 1.
Part B: mRNA CR-04 3 µgEXPERIMENTALParticipants received mRNA 3 µg administered on Day 1.
Part B: mRNA CR-04 10 µgEXPERIMENTALParticipants received mRNA 10 µg administered on Day 1.
Part B: PlaceboPLACEBO_COMPARATORParticipants received placebo dose administered on Day 1.

Interventions

NameTypeDescription
mRNA-CR-04 vaccine 10μgBIOLOGICALmRNA CR-04 vaccine, 10 µg, is administered intramuscularly into the deltoid muscle of the non-dominant arm on day 1.
mRNA-CR-04 vaccine 30μgBIOLOGICALmRNA CR-04 vaccine, 30 µg, is administered intramuscularly into the deltoid muscle of the non-dominant arm on day 1.
mRNA-CR-04 vaccine 100μgBIOLOGICALmRNA CR-04 vaccine, 100 µg, is administered intramuscularly into the deltoid muscle of the non-dominant arm on day 1.
PlaceboDRUGPlacebo is administered intramuscularly into the deltoid muscle of the non-dominant arm on day 1.
mRNA-CR-04 vaccine 3μgBIOLOGICALmRNA CR-04 vaccine, 3 µg, is administered intramuscularly into the deltoid muscle of the non-dominant arm on day 1.
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Eligibility Criteria

Age Range18 Years to 49 Years
SexALL
Healthy VolunteersYes
Study Sites4

Inclusion Criteria: 1. Written or witnessed informed consent obtained from the participant prior to performance of any study-specific procedure. 2. Participants, who in the opinion of the investigator, can and will comply with the requirements of the protocol (e.g., completion of the eDiary and stu...

Countries:United States
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Frequently asked questions about mRNA-04 vaccine 10μg

What is mRNA-04 vaccine 10μg used for?

mRNA-04 vaccine 10μg is an investigational vaccine being developed for the prevention of COVID-19. It is currently in Phase 1 clinical development and is intended for use in healthy adults. The vaccine is designed to elicit an immune response against the coronavirus that causes COVID-19.

Who makes mRNA-04 vaccine 10μg?

mRNA-04 vaccine 10μg is being developed by GSK plc, a global biopharma company listed on the London Stock Exchange under the ticker GSK. The company is conducting clinical trials to evaluate the safety and immune response of this vaccine candidate.

What phase is mRNA-04 vaccine 10μg in?

mRNA-04 vaccine 10μg is in Phase 1 clinical development. It is an investigational vaccine and has not been approved by regulatory authorities. A Phase 1 trial has been completed to evaluate its safety and immunogenicity in healthy adults.

What clinical trials is mRNA-04 vaccine 10μg in?

mRNA-04 vaccine 10μg has been studied in one clinical trial, identified as NCT05972993. This was a Phase 1, randomized, double-blind, placebo-controlled study that evaluated varying doses of the vaccine against COVID-19 in healthy adults in the United States. The trial has been completed.

Is mRNA-04 vaccine 10μg the same as other COVID-19 vaccines?

mRNA-04 vaccine 10μg is a distinct investigational vaccine candidate developed by GSK. It is not known to be the same as any other approved or investigational COVID-19 vaccine. Its specific formulation and dosing are unique to this clinical development program.