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Moderna (MRNA)
NASDAQ:MRNA
Mrna-1273, Mrna-1283, Mrna-1283.222, Mrna-1273.222, Mrna-1283.815, Mrna-1273.815, Mrna-1283.211, Mrna-1283.529, Mrna-1283.251 Variant-Containing Formulation
Sars-Cov-2
Phase IV
Recruiting
A Study to Evaluate the Efficacy and Safety of mRNA-1283 and mRNA-1273 in Participants 50 to 64 Years of Age Without High-Risk Conditions for Severe Coronavirus Disease 2019 (COVID-19)
Nov 25, 2025
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FAQ
What are the FDA phases for drug approval?
The FDA approval process for new drugs is divided into several phases:
a. Preclinical testing
b. Phase 1 – Safety and dosage
c. Phase 2 – Effectiveness and side effects
d. Phase 3 – Confirmation of effectiveness, monitoring of adverse reactions, and comparison with existing treatments
e. Phase 4 – Post-marketing studies to track long-term safety and effectiveness
a. Preclinical testing
b. Phase 1 – Safety and dosage
c. Phase 2 – Effectiveness and side effects
d. Phase 3 – Confirmation of effectiveness, monitoring of adverse reactions, and comparison with existing treatments
e. Phase 4 – Post-marketing studies to track long-term safety and effectiveness
What is a clinical trial?
A clinical trial is a carefully designed study in which researchers test a drug, treatment, or medical device in people to evaluate its safety, effectiveness, and potential side effects. These trials are essential for determining whether a new treatment should be approved for widespread use.
What drugs does Moderna (MRNA) have in its pipeline
MRNA is currently developing the following drugs: Mrna-1273, Mrna-1283, Mrna-1283.222, Mrna-1273.222, Mrna-1283.815, Mrna-1273.815, Mrna-1283.211, Mrna-1283.529, Mrna-1283.251 Variant-Containing Formulation, Iva, Vx-522 Mrna Therapy. These drug candidates are in various stages of clinical development as the company works toward FDA approval.