Persistence of Neutralizing Antibodies 6 and 12 Months After a Covid-19

NCT ID: NCT04543006

Last Updated: 2020-09-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

170 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-09-08

Study Completion Date

2021-12-31

Brief Summary

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Covid-19 is associated with the onset of anti-SARS-CoV-2 antibodies; in a majority of patients, neutralizing antibodies are detected. However, the long-term persistence of such protective antibodies is not known.

The investigators will explore patients with a proven Covid-19 (positive PCR) 6 and 12 months after the diagnosis to determine whether neutralizing antibodies are still detected.

The investigators will determine whether this persistance varies according to

* the severity of the Covid-19
* a treatment by steroids during the covid-19. This will help to anticipate whether a second wave of infection is possible in a non-naive population.

Detailed Description

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Covid-19 is associated with the onset of anti-SARS-CoV-2 antibodies; in a majority of patients, neutralizing antibodies are detected. However, the long-term persistence of such protective antibodies is not known.

The investigators will explore adult patients with a proven Covid-19 (positive PCR) 6 and 12 months after the diagnosis to determine whether neutralizing antibodies are still detected.

The investigators will determine whether this persistance varies according to

* the severity of the Covid-19 (3 groups: no oxyegn therapy; oxygen therapy of less than 3L/min; oxygen therapy of 3L/min or more)
* a treatment by steroids during the covid-19. Immunocompromised patients will be excluded.

Conditions

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Covid19

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

sample of patients 6 and 12 months after the acute disease
Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Covid-19

only arm: Covid-19 proven by PCR

Group Type OTHER

serology

Intervention Type DIAGNOSTIC_TEST

blood sample of 10 ml twice (6 and 12 months after the Covid-19)

Interventions

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serology

blood sample of 10 ml twice (6 and 12 months after the Covid-19)

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* positive SARS-CoV-2

Exclusion Criteria

* age under 18
* immunocompromised at the onset of Covid-19
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Grenoble

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Olivier Epaulard, MD,PhD

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Grenoble

Central Contacts

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Olivier Epaulard, MD,PhD

Role: CONTACT

0033476765291

Other Identifiers

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EssaiClinique_PANCOLIN

Identifier Type: -

Identifier Source: org_study_id

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