AzTrials
AzTrials

Coronavirus Disease (COVID-19)NCT04941144

Long-Term Follow-up Survey of COVID-19 Vaccine After Vaccination

An observational study of Coronavirus Disease (COVID-19), run by ModernaTX, Inc. at 1 site in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

This study is a long-term follow-up survey of Japanese people after their second vaccination with the Moderna COVID-19 vaccine. The study sponsor will not be involved in how the participants are treated but will provide instructions on how the clinics will record what happens during the study. Read more about this study

Who is it for?
Any ageHealthy volunteers can take part
Conditions the study is for
Coronavirus Disease (COVID-19)
What is being tested?
COVID-19 Vaccine
How many people
8,538 participants
Where
1 siteJapan
Study dates
22 Dec 2021to 28 Apr 2023
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: The population of this survey are vaccinated participants who meet the inclusion/exclusion criteria.

Who may be able to join

  • Participants who have participated in the preceding cohort study and has subsequently provided written consent to participate in this study.

Who cannot join

  • None

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • Moderna selected site

    Tokyo

Other trials in Japan

About this study

Official title: General Use Results Survey: Spikevax Intramuscular Injection (Previously COVID-19 Vaccine Moderna Intramuscular Injection) During the Early Phase of Treatment With Novel Corona Vaccine, Follow-up of Key Survey Participants

This study is a long-term follow-up survey of Japanese people after their second vaccination with the Moderna COVID-19 vaccine.

The study sponsor will not be involved in how the participants are treated but will provide instructions on how the clinics will record what happens during the study.

The main aim of the study is to check for long-term side effects of the COVID-19 vaccine. This will be from 28 days to 12 months after the second vaccination of the COVID-19 vaccine.

The number of visits to the clinic will depend on the clinic's standard practice.

Being tested
COVID-19 Vaccine
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • COVID-19 VaccineBiological

    Also called COVID-19 Vaccine Moderna Intramuscular Injection, Spikevax Intramuscular Injection

    COVID-19 Vaccine Intramuscular Injection

Study groups in NCT04941144
Study groupRoleWhat they receive
COVID-19 Vaccine Intramuscular Injection 0.5 milliliters (mL)COVID-19 vaccine intramuscular injection, 2 doses of 0.5 mL per dose administered intramuscularly at an interval of 4 weeks.
Receives: Biological: COVID-19 Vaccine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants with Serious Adverse Events (SAE)

    An SAE is defined as any untoward medical occurrence that: Results in death, Is life-threatening, Requires in patient hospitalization or prolongation of existing hospitalization, Results in persistent or significant disability/incapacity, Leads to a congenital anomaly/birth defect in the offspring of a participant, or Is an important medical event.

    Measured: 11 months (From 28 days to 12 months after the second vaccination)

Secondary outcomes (3)
  1. Number of Participants who Take COVID-19 Pathogen (Severe Acute Respiratory Syndrome coronavirus [SARS-CoV-2]) Test during the Study

    Measured: 11 months (From 28 days to 12 months after the second vaccination)

  2. Number of Participants who Developed COVID-19 during the Study

    Measured: 11 months (From 28 days to 12 months after the second vaccination)

  3. Number of Participants Who Have Severe COVID-19 Infection during the Study Evaluated by Investigator

    Number of participants who have severe COVID-19 infection during the study evaluated by investigator will be reported. Investigator will evaluate the severity of COVID-19 infection with COVID-19 information entered in the case report form in reference to "Guidance for Clinical Practice of Novel Coronavirus Infection (COVID-19)".

    Measured: 11 months (From 28 days to 12 months after the second vaccination)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Jun 2021
  2. Study start22 Dec 2021
  3. Primary completion28 Apr 2023
  4. Study completion28 Apr 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
8,538 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04941144
Sponsor's protocol ID
mRNA-1273-P918
Other IDs
jRCT2031210168
Status last verified
May 2023
First submitted
25 Jun 2021
Last updated
19 May 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Coronavirus Disease (COVID-19), run by ModernaTX, Inc. at 1 site in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants with Serious Adverse Events (SAE) (time frame: 11 months (From 28 days to 12 months after the second vaccination)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 May 2023.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in