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Evaluation of Vaccination Coverage and Determinants of Success of the COVID-19 Vaccination Program Among Populations in Very Precarious Situations

PREVAC: Evaluation of Vaccination Coverage and Determinants of Success of the COVID-19

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05075941
Acronym
PREVAC
Enrollment
3811
Registered
2021-10-13
Start date
2021-11-15
Completion date
2021-12-22
Last updated
2023-04-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19

Keywords

vaccination coverage, migrants, homeless, travelling community

Brief summary

The main objective of the study is to assess the level of vaccination coverage (VC) against COVID-19 among migrants, homeless and travelling community, according to their living conditions and housing. The secondary objectives are : * to compare the estimated level of vaccination coverage in the different sites and strata (emergency shelters/hotels, camps, workers' hostels, on the street) with the estimated level in the general population of the same territory obtained from the French Health Insurance data (SIVAC). * identify the obstacles and leverage of vaccination (i.e. mobile team) according to living conditions and habitat (socio-demographic factors, personal health history, vaccine adherence, local health policies, etc.).

Interventions

OTHERVaccination coverage

proportion of people declaring to have received at least one dose of vaccination against COVID-19 among target population

Sponsors

Institut de Recherche en Santé Publique, France
CollaboratorOTHER
Medecins Sans Frontieres, Netherlands
CollaboratorOTHER
Médecins du Monde
CollaboratorOTHER
CROIX ROUGE FRANCAISE
CollaboratorUNKNOWN
OBSERVATOIRE DU SAMU SOCIAL
CollaboratorUNKNOWN
INTERLOGEMENT 93
CollaboratorUNKNOWN
Agence Regionale de Sante d'Ile de France
CollaboratorOTHER_GOV
Epicentre
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

Inclusion criteria

* Adult (18 years and older) * People considered as homeless (homeless, living in a camp or squat) or * Living in adapted housing (migrant workers' hostel) or * Housed in residences of the National System or * Housed in a social residence such as a 115 hotel or a social housing centre * Freely and voluntarily consenting to participate

Exclusion criteria

* Refusal to participate in the study (non-consent). * Language barrier with no in-person or telephone translation available. * Impossibility to give free and informed consent (comprehension barrier, cognitive and/or psychiatric and/or addictive disorders, external pressure from family and friends, persons under guardianship, etc.).

Design outcomes

Primary

MeasureTime frameDescription
Vaccination coverage among COVID-19one monthAssess the proportion of people declaring to have received at least one dose of vaccination against COVID-19 among migrants, homeless and travelling community, according to their living conditions and housing
Identify the most appropriate conditions for the use of vaccination against COVID-19one monthPromote interventions to encourage the use of COVID-19 vaccination

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026