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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04441684
Other study ID # 7782
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date April 17, 2020
Est. completion date July 16, 2021

Study information

Verified date July 2021
Source University Hospital, Strasbourg, France
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

COVID-19 is a new emerging disease caused by infection with the SARS-CoV-2 coronavirus, with no specific therapeutic options. Since the end of February 2020, the Strasbourg University Hospital (HUS) had faced a sudden increase of patients with COVID-19 resulted from a SARS-CoV-2 superspreading event (religious meeting). Infected individuals went to regional hospitals, and this led to a cluster of infected healthcare workers at the Strasbourg University Hospitals from the first week of March. To date, several hundred Strasbourg hospital workers have presented a SARS-CoV-2 infection confirmed by the RT-PCR test from a nasopharyngeal sample. Most of them developed a mild form of COVID-19. It is important to understand how far the infection has spread in the hospital staff, and to which extent the individuals who have been infected develop antibodies against SARS-CoV-2.


Recruitment information / eligibility

Status Completed
Enrollment 1466
Est. completion date July 16, 2021
Est. primary completion date May 7, 2020
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Any person, male or female, over 18 years of age at the time of signing the consent - Any person affiliated to a social health insurance scheme - Any person able to understand the objectives and risks related to research and to give an informed, dated and signed consent - Any person who is part of HUS staff and working at HUS at the time of the pandemic, including residents affiliated with HUS and assigned to general hospitals in the region - Any symptomatic person with a positive COVID result (PCR + group) or negative (PCR- group) with a RT-PCR test carried out at least 10 days before inclusion, or any person, for which no COVID PCR was performed (group " No PCR") Exclusion Criteria: - Person in exclusion period (determined by a previous or ongoing study), - Inability to give clear information (person in an emergency, difficulty understanding the subject, etc.) - Person under safeguard of justice - Person under guardianship or curatorship

Study Design


Intervention

Diagnostic Test:
Blood sample for serological test
Serology tests: By LFA-ICT: BIOSYNEX COVID-19 BSS reference SW40005, BIOSYNEX SWISS SA, Fribourg, Switzerland ELISA: EDIā„¢ Novel Coronavirus COVID-19 ELISA IgG Kit, Epitope Diagnostics, Inc., San Diego, USA Confirmation test by seroneutralization tests developed at the Strasbourg Virology laboratory on whole virus (analyzes performed in a biosafety level 3 laboratory) and by the viral pseudoparticles system, will be performed.

Locations

Country Name City State
France Hôpitaux Universitaires de Strasbourg - Centre d'Investigation Clinique - Nouvel Hôpital Civil et Hautepierre Strasbourg

Sponsors (1)

Lead Sponsor Collaborator
University Hospital, Strasbourg, France

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Other Analysis of the T cell response by the ELISPOT technique At one of the follow up visit : Month 3 (Day 0+3 months), Month 6 (Day 0+6 months) or Month 12 (Day 0+12 months).
Other B cell repertoire sequencing At one of the follow up visit : Month 3 (Day 0+3 months), Month 6 (Day 0+6 months) or Month 12 (Day 0+12 months).
Other Sequencing of cellular SARS-CoV2 receptors At one of the follow up visit : Month 3 (Day 0+3 months), Month 6 (Day 0+6 months) or Month 12 (Day 0+12 months).
Primary Presence of specific SARS-CoV2 antibodies in the serum in the 3 groups of subjects studied, at the inclusion visit (D0). Presence of specific SARS-CoV2 antibodies in the serum in the 3 groups of subjects studied, at the inclusion visit (D0). inclusion visit (Day 0).
Secondary Detection and titration of neutralizing antibodies anti-SARS-CoV-2 At Day 0 and each follow-up visits i.e. at Month 3 (Day 0+3 months), Month 6 (Day 0+6 months) and Month 12 (Day 0+12 months).
Secondary Kinetics of antibodies and their persistence over a period of 1 year At Day 0 and each follow-up visits i.e. at Month 3 (Day 0+3 months), Month 6 (Day 0+6 months) and Month 12 (Day 0+12 months).
Secondary Number of asymptomatic subjects in the PCR - and -PCR groups At Day 0 and each follow-up visits i.e. at Month 3 (Day 0+3 months), Month 6 (Day 0+6 months) and Month 12 (Day 0+12 months).
Secondary Number of people with positive Sars-CoV-2 serology At Day 0 and each follow-up visits i.e. at Month 3 (Day 0+3 months), Month 6 (Day 0+6 months) and Month 12 (Day 0+12 months).
Secondary Questionnaire (Type of health care personnel, Contact history, medical operation and respect of hygiene standards) At Day 0 and each follow-up visits i.e. at Month 3 (Day 0+3 months), Month 6 (Day 0+6 months) and Month 12 (Day 0+12 months).