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Vaccine

mRNA COVID-19 Vaccine for Children

Phase 2 & 3
Waitlist Available
Research Sponsored by ModernaTX, Inc.
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Key
For children 6 months to <12 months of age: born at full-term with a minimum birth weight of 2.5 kilograms (kg).
Timeline
Screening 3 weeks
Treatment Varies
Follow Up day 1, day 57, day 209, day 394, booster dose day 1, booster dose day 29, booster dose day 181, and booster dose day 366
Awards & highlights

Study Summary

This trial is testing a vaccine for children. It will evaluate how well it works given in 2 or 3 doses, with an optional booster dose.

Who is the study for?
Healthy children aged 6 months to less than 12 years, including those with stable chronic diseases like asthma or diabetes. They must not have had a recent SARS-CoV-2 infection, exposure, or COVID-19 vaccination. Participants should meet specific growth standards and their parents must agree to follow the study's procedures.Check my eligibility
What is being tested?
The trial is testing different doses of mRNA-1273 COVID-19 vaccine in children through intramuscular injections. It will explore the safety and effectiveness of two initial doses plus an optional third dose or booster.See study design
What are the potential side effects?
Possible side effects may include pain at the injection site, fever, fatigue, headache, muscle pain, chills, joint pain and nausea. Side effects are generally mild to moderate but can vary for each child.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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It looks like the criterion is incomplete. Could you please provide more details or context for me to assist you accurately?
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My child was born full-term and weighed at least 2.5 kg.
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My child's BMI is at or above the 3rd percentile for their age.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~day 1, day 57, day 209, day 394, booster dose day 1, booster dose day 29, booster dose day 181, and booster dose day 366
This trial's timeline: 3 weeks for screening, Varies for treatment, and day 1, day 57, day 209, day 394, booster dose day 1, booster dose day 29, booster dose day 181, and booster dose day 366 for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
GM Value of Post-Booster Dose SARS-CoV-2 Specific Serum Antibody
Geometric Mean (GM) Value of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Specific Serum Antibody
Number of Participants with AEs Leading to Discontinuation From Study Post-Booster Dose Through the Last Day of Study Participation
+8 more
Secondary outcome measures
GM Value of SARS-CoV-2 S-Protein-Specific Binding Antibody (bAb)
GM Value of SARS-CoV-2- Specific Neutralizing Antibody (nAb)
Number of Participants with SARS-CoV-2 Infection Measured by RT-PCR and/or bAb Levels Against SARS-CoV-2 Nucleocapsid Protein in Participants with Negative SARS-CoV-2 at Baseline, in the Absence of Any COVID-19 Symptoms
+2 more

Side effects data

From 2022 Phase 4 trial • 41 Patients • NCT04792567
24%
COVID-19
18%
Lymphopenia
18%
Injection site pain
12%
Pain in extremity
12%
Multiple sclerosis relapse
12%
Liver function test increased
6%
Back pain
6%
Flushing
6%
VIth nerve paralysis
6%
Escherichia urinary tract infection
6%
Visual impairment
6%
Fatigue
6%
Injection site pustule
6%
Rhinitis
6%
Upper limb fracture
6%
Myalgia
6%
Dizziness
6%
Headache
6%
Menstrual disorder
6%
Cough
6%
Pyrexia
6%
Urinary tract infection
100%
80%
60%
40%
20%
0%
Study treatment Arm
Siponimod Continuous
Siponimod Interrupted
DMT or No MS Treatment

Trial Design

2Treatment groups
Experimental Treatment
Placebo Group
Group I: mRNA-1273Experimental Treatment2 Interventions
Part 1: Participants will receive 2 IM injections of mRNA-1273 at doses pre-specified for this study, on Days 1 and 29. Participants will be offered an optional BD of mRNA-1273 lower than the dose chosen for primary series, ≥6 months after Dose 2. After protocol amendment (PA) 9, participants who have not yet received a BD will be offered a BD with mRNA-1273.214. Part 2: Participants will receive 2 IM injections of mRNA-1273 at dose selected from Part 1 on Days 1 and 29. Participants (6 to <12 year) will be offered an optional BD of mRNA-1273 lower than the dose chosen for primary series, ≥6 months after Dose 2. After PA 9, participants who have not yet received a BD will be offered a BD with mRNA-1273.214. Part 3: Participants will receive 2 IM injections of mRNA-1273 on Days 1 and 29 as primary series then 1 IM injection as Dose 3, on Day 149 ≥3 months and ≤5 months after receipt of Dose 2 of primary series. All 3 injections will be administered at lower dose than that of Part 1.
Group II: PlaceboPlacebo Group3 Interventions
Part 2 only: Participants will receive 2 IM injections of mRNA-1273-matching placebo on Day 1 and Day 29. Participants (6 to <12 year old) will be offered an optional BD of mRNA-1273 at a dose lower than the dose that was chosen for the primary series for this age group, at least 6 months post-cross-over Dose 2. After PA 9, participants who have not yet received a BD will be offered a BD with mRNA-1273.214.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
mRNA-1273.214
2021
Completed Phase 3
~20920
mRNA-1273
2021
Completed Phase 4
~58750

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
The mRNA-1273 vaccine, like other mRNA-based vaccines, works by encoding the spike protein of SARS-CoV-2, prompting the body to produce this protein and subsequently inducing an immune response. This prepares the immune system to recognize and combat the actual virus if encountered. Antiviral drugs, such as remdesivir, inhibit viral replication by targeting viral RNA polymerase, reducing the viral load in the body. Monoclonal antibodies, like those targeting the spike protein, neutralize the virus by preventing it from entering human cells. These treatments are crucial for COVID-19 patients as they either prevent infection, reduce the severity of the disease, or aid in faster recovery by enhancing the body's ability to fight the virus.
Insights on the mechanisms of action of ozone in the medical therapy against COVID-19.mRNA-1273 efficacy in a severe COVID-19 model: attenuated activation of pulmonary immune cells after challenge.

Find a Location

Who is running the clinical trial?

ModernaTX, Inc.Lead Sponsor
108 Previous Clinical Trials
61,367,963 Total Patients Enrolled
37 Trials studying COVID-19
61,248,616 Patients Enrolled for COVID-19

Media Library

mRNA-1273 (Vaccine) Clinical Trial Eligibility Overview. Trial Name: NCT04796896 — Phase 2 & 3
COVID-19 Research Study Groups: mRNA-1273, Placebo
COVID-19 Clinical Trial 2023: mRNA-1273 Highlights & Side Effects. Trial Name: NCT04796896 — Phase 2 & 3
mRNA-1273 (Vaccine) 2023 Treatment Timeline for Medical Study. Trial Name: NCT04796896 — Phase 2 & 3
~2868 spots leftby Jun 2025