Negative test, safe concert? study tests Pre-Event screening
NCT ID NCT04872075
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether testing people for COVID-19 just before a large indoor concert could keep the event from causing new infections. Over 6,600 healthy adults aged 18-45 either attended the concert after a negative test or stayed home. The goal was to see if the concert group had more positive tests a week later than the home group.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
6,678 people
The number who actually took part.
- Started
-
May 2021
- Finished
-
Jun 2021
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 45 years
- Sex
-
Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * aged between 18 and 45 years old * lack of symptoms or no contact with people with Covid-19 in the last two weeks * negative antigenic test to Covid-19 in the 3 days before the experiment * people who declared to have no risk factor to severe form of Covid-19 * people who declared not to live in the same place as someone with these risk factors * people residing in Ile-de-France area Exclusion Criteria: * positive test to Sars-Cov-2 within 3 days before the concert * people with clinical signs suggesting infectious respiratory disease * people with severe Covid-19 risk factor * people living with someone having severe covid-19 risk factor * not affiliated to social security * people who cannot remain standing for the time of the experimentation (about 5 hours) * person under tutorship or curatorship * pregnant women or not having effective contraception method * breastfeeding women
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for COVID19 are added.
Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
AccorHotels Arena
Paris, 75012, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Home antibody tests put to the test: can you read your own COVID-19 result?
- COVID-19's hidden toll: muscle wasting in the ICU
- Can a mild case of COVID-19 harm your kidneys? urine tests may hold the answer
- Could a common acne pill weaken the nose's defense against COVID-19?
- Could cystic fibrosis offer hidden protection against COVID-19?
- Could a different way of pedaling rebuild muscles after severe COVID-19?