NCT04471766

Brief Summary

The number of cases of COVID-19 is still increasing and transmission of SARS-CoV-2 seems to occur mainly through person-to-person transmission through respiratory droplets, indirect contact with infected people and surfaces. The use of face masks is recommended as a public health measure, but in many settings only domestic cloth made masks are available to the majority of the people. However, masks can be of different quality and very little is known about the utility of cloth face masks at the community level. In Bandim Health Project's Health and Demographic Surveillance System we will evaluate the effect of providing locally produced cloth face masks on severity of COVID-19 like illness and mortality in an urban population. The locally produced cloth mask is made according to a laboratory certified model and will be provided to the intervention group alongside information of how the risk of transmission can be reduced. The control group will receive information alone. Follow-up will be implemented through telephone calls and post-epidemic home visits.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
40,000

participants targeted

Target at P75+ for not_applicable covid19

Timeline
Completed

Started Jul 2020

Typical duration for not_applicable covid19

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

July 14, 2020

Completed
1 day until next milestone

First Posted

Study publicly available on registry

July 15, 2020

Completed
5 days until next milestone

Study Start

First participant enrolled

July 20, 2020

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2021

Completed
Last Updated

October 13, 2021

Status Verified

March 1, 2021

Enrollment Period

1.2 years

First QC Date

July 14, 2020

Last Update Submit

October 5, 2021

Conditions

Keywords

Face maskCOVID-19Respiratory illnessMortality

Outcome Measures

Primary Outcomes (4)

  • Reported COVID-like illness

    Self-reported main symptoms of COVID-19 (three or more - fever, cough, fatigue, shortness of breath, loss of smell / taste)

    Four months follow-up

  • Consultation

    Consultation for COVID-19 like illness or/and reported positive test

    Four months follow-up

  • Severe illness

    Self reported COVID-19 like illness plus hospitalization or death

    Four months follow-up

  • Mortality

    Any death during the follow-up period

    Four months follow-up

Study Arms (2)

Certified cloth face mask plus preventive information

EXPERIMENTAL

Certified cloth face mask

Other: Certified cloth face mask plus preventive informationBehavioral: Preventive information

Information on COVID-19 prevention

ACTIVE COMPARATOR

Advice on how to prevent COVID-19 according to the government´ policy.

Behavioral: Preventive information

Interventions

Provision of two face masks sewed locally following a certified model tested for FORCE in the laboratory per residents \> 10 years old

Certified cloth face mask plus preventive information

Advice on how to prevent COVID-19 according to the government´ policy

Certified cloth face mask plus preventive informationInformation on COVID-19 prevention

Eligibility Criteria

Age10 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Household resident
  • Age: 10 years and older

You may not qualify if:

  • Refusal to participate

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Bandim Health Project

Bissau, Bissau Codex, Guinea-Bissau

Location

Related Publications (1)

  • Nanque LM, Jensen AM, Diness A, Nielsen S, Cabral C, Cawthorne D, Martins JSD, Ca EJC, Jensen K, Martins CL, Rodrigues A, Fisker AB. Effect of distributing locally produced cloth facemasks on COVID-19-like illness and all-cause mortality-a cluster-randomised controlled trial in urban Guinea-Bissau. PLOS Glob Public Health. 2024 Feb 13;4(2):e0002901. doi: 10.1371/journal.pgph.0002901. eCollection 2024.

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 14, 2020

First Posted

July 15, 2020

Study Start

July 20, 2020

Primary Completion

October 1, 2021

Study Completion

October 1, 2021

Last Updated

October 13, 2021

Record last verified: 2021-03

Data Sharing

IPD Sharing
Will not share

Locations