NCT04668625

Brief Summary

The coronavirus disease 2019 (COVID-19) outbreak, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), emerged in Wuhan in December 2019 and has spread globally, representing a serious threat to public health. While waiting for highly effective treatments or the development of an effective vaccine, it is necessary to reactivate key economic activities that are related to leisure and culture in an environment that is safest for the participants. The use of a rapid screening test for SARS-CoV-2 viral antigens with high sensitivity could be a useful tool to detect asymptomatic SARS-CoV-2 infected people, and thus be able to carry out events related to leisure in a safe environment. The aim of this study is to make a mass screening of asymptomatic infection of an (i) experimental group (public attending a massive mass musical show) and (ii) a control group (they will not enter the event) prior to entering to the event. Randomization 1: 1 by random blocks of the participants with a negative antigen test in the experimental group (attending the event) and the control group (they will not enter the event). Control with a new Polymerase Chain Reaction (PCR) test 8 days after the event (D8) in the participants of both randomized groups Control of the appearance of symptoms through a questionnaire 10 days after the event (D10), in the participants of both groups with a negative result on day 8. Validation of a rapid antigen detection test by comparison with the PCR technique. The indoor activity will include an array of measures designed to reducing the contagion risk, including: mandatory wearing a mask during the event, restricted outdoor areas of bar and smoking, enhanced ventilation of the whole indoor area, and avoiding queues. All subjects will have downloaded an app in their smart phones to help contact and place tracing during the event, to trace potential transmissions. This app will remain active for 8 days, until the last virologic control. The inclusion criteria will allow only subjects with an age \<60 years, without comorbidities, and who do not live with old adults in their homes, to further reduce the risk of potential complications and transmission to at risk individuals.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,000

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Nov 2020

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 30, 2020

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

December 9, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

December 16, 2020

Completed
4 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 20, 2020

Completed
19 days until next milestone

Study Completion

Last participant's last visit for all outcomes

January 8, 2021

Completed
Last Updated

February 8, 2021

Status Verified

January 1, 2021

Enrollment Period

20 days

First QC Date

December 9, 2020

Last Update Submit

February 5, 2021

Conditions

Keywords

SARS-CoV-2COVID-19CoronavirusSuperspreading eventConcert

Outcome Measures

Primary Outcomes (1)

  • Incidence rate of people infected with SARS-CoV-2 8 days after randomization

    Incidence rate of people infected with SARS-CoV-2 8 days after randomization, detected by PCR in nasopharyngeal aspirate, on the experimental and the control group.

    At 8 days

Secondary Outcomes (7)

  • SARS-CoV-2 genome sequence

    At 8 days

  • Incidence rate of appearance of symptoms compatible with COVID 19

    At 10 days

  • Time spent in testing the total number of participants in the study.

    At day 0

  • Comparison of the diagnostic sensitivity of rapid antigen tests for SARS-CoV-2 compared to PCR in asymptomatic subjects.

    At day 0

  • Comparison of the diagnostic sensitivity of rapid antigen tests for SARS-CoV-2 using a nasopharyngeal swab sample compared to sample obtained trough saliva

    At day 0

  • +2 more secondary outcomes

Study Arms (2)

Experimental group

EXPERIMENTAL

Participate in a massive musical event

Behavioral: Participate in a massive musical event

Control Group

NO INTERVENTION

Not participate in a massive musical event

Interventions

Participate in a massive musical event

Experimental group

Eligibility Criteria

Age18 Years - 59 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Adults (age 18-59 years) with interest to attend the scheduled musical event who agree to participate in the study after signing the informed consent, including explicit acceptance of the measures implemented to reduce the risk of transmission of SARS-CoV-2.
  • Negative antigen test performed up to 24 h before the event, in nasopharyngeal swab.

You may not qualify if:

  • Hypertension
  • Diabetes Mellitus.
  • Ischemic heart disease.
  • Any type of Cancer in active treatment.
  • Chronic lung diseases such as chronic obstructive pulmonary disease (COPD) and asthma.
  • Have a positive test for detection of SARS-CoV-2 by the rapid antigen test
  • Who have a body temperature higher than 37.0º on the same day of the event
  • Who have a confirmed diagnosis for SARS-CoV-2 in the two weeks prior to the event
  • Report any symptoms suggestive of a SARS-CoV-2 infection in the 10 days prior to the study
  • Who have been in contact with a person with a confirmed diagnosis of SARS-CoV-2 infection within two weeks prior to the event.
  • Living with a person over 70 years of age (inclusive).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Germans Trias i Pujol Hospital

Badalona, Barcelona, 08916, Spain

Location

Related Publications (1)

  • Revollo B, Blanco I, Soler P, Toro J, Izquierdo-Useros N, Puig J, Puig X, Navarro-Perez V, Casan C, Ruiz L, Perez-Zsolt D, Videla S, Clotet B, Llibre JM. Same-day SARS-CoV-2 antigen test screening in an indoor mass-gathering live music event: a randomised controlled trial. Lancet Infect Dis. 2021 Oct;21(10):1365-1372. doi: 10.1016/S1473-3099(21)00268-1. Epub 2021 May 27.

MeSH Terms

Conditions

COVID-19Coronavirus Infections

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Officials

  • Bonaventura Clotet Sala, PhD, MD

    Fundación FLS de Lucha Contra el Sida, las Enfermedades Infecciosas y la Promoción de la Salud y la Ciencia

    PRINCIPAL INVESTIGATOR
  • Boris Revollo Barriga, PhD, MD

    Fundación FLS de Lucha Contra el Sida, las Enfermedades Infecciosas y la Promoción de la Salud y la Ciencia

    PRINCIPAL INVESTIGATOR
  • Josep Mª LLIBRRE CODINA, PhD, MD

    Fundación FLS de Lucha Contra el Sida, las Enfermedades Infecciosas y la Promoción de la Salud y la Ciencia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: All participants will be screened for a rapid Ag SARS-CoV-2 test detection. All negative subjects will be randomized to an experimental arm (participate in a massive musical event) or to a control arm (not participate in a massive musical event).
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 9, 2020

First Posted

December 16, 2020

Study Start

November 30, 2020

Primary Completion

December 20, 2020

Study Completion

January 8, 2021

Last Updated

February 8, 2021

Record last verified: 2021-01

Locations