CompletedNot Applicable

Post-Marketing Safety Study in Japan of Shock and Anaphylaxis After Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) mRNA-1273 COVID-19 Vaccine in Persons in at High Risk of Severe COVID-19

Japan13,309 participantsStarted 2022-11-15

Plain-language summary

The goal of this study is to confirm the onset status of hypersensitivity reactions including shock and anaphylaxis observed after vaccination with this drug in persons with underlying diseases who are considered to have a high risk of severe exacerbation of COVID-19 and explore risk factors.

Who can participate

Age range

18 Years – 75 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Participants registered to receive the mRNA-1273 vaccine in the Pep Up vaccination history Database * Participants who have a history of vaccination with the mRNA-1273 vaccine in the Pep-Up vaccination history Database and the observation start date is at least 6 months prior to vaccination with the mRNA-1273 vaccine and have underlying diseases. Data period for confirmation of presence/absence of underlying disease is May 2021 to November 2021. Exclusion Criteria: * Underlying diseases that were determined undetectable by the pre-screening of JMDC * Participants who did not consent to the questionnaire.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Number of Participants With Hypersensitivity Reactions Including Shock and Anaphylaxis After Either Dose 1 and Dose 2

Timeframe: Up to 2 days post vaccination after either the first or second vaccination

Trial details

NCT IDNCT05894499

SponsorModernaTX, Inc.

Sponsor typeINDUSTRY

Study typeOBSERVATIONAL

Primary completion2023-05-26

View on ClinicalTrials.gov More SARS-CoV-2 trials

Who can participate

Age range

18 Years – 75 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.