deltatrials
Completed OBSERVATIONAL NCT04325646

Sero-epidemiological Study of the SARS-CoV-2 Virus Responsible for COVID-19 in France (CORSER)

Sero-epidemiological Study of the SARS-CoV-2 Virus in France: Constitution of a Collection of Human Biological Samples

Sponsor: Institut Pasteur

Updated 14 times since 2020 Last updated: Jul 6, 2023 Started: Mar 13, 2020 Primary completion: May 31, 2023 Completion: May 31, 2023
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This observational or N/A phase trial investigates COVID-19 and SARS (Severe Acute Respiratory Syndrome) and is currently completed. Institut Pasteur leads this study, which shows 14 recorded versions since 2020 — indicating substantial longitudinal coverage. Longitudinal tracking of infectious disease trials helps identify durability of treatment effects.

Status Flow

~Apr 2020 – ~May 2020 · 30 days · monthly snapshot~May 2020 – ~Jul 2020 · 2 months · monthly snapshot~Jul 2020 – ~Oct 2020 · 3 months · monthly snapshot~Oct 2020 – ~Nov 2020 · 31 days · monthly snapshot~Nov 2020 – ~Jan 2021 · 2 months · monthly snapshot~Jan 2021 – ~Feb 2021 · 31 days · monthly snapshot~Feb 2021 – ~Sep 2021 · 7 months · monthly snapshot~Sep 2021 – ~Dec 2021 · 3 months · monthly snapshot~Dec 2021 – ~Apr 2022 · 4 months · monthly snapshot~Apr 2022 – ~Aug 2023 · 16 months · monthly snapshot~Aug 2023 – ~Jul 2024 · 11 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshot~Sep 2025 – present · 10 months · monthly snapshot

Change History

14 versions recorded
  1. Sep 2025 — Present [monthly]

    Completed

  2. Sep 2024 — Sep 2025 [monthly]

    Completed

  3. Jul 2024 — Sep 2024 [monthly]

    Completed

  4. Aug 2023 — Jul 2024 [monthly]

    Completed

    Status: RecruitingCompleted

  5. Apr 2022 — Aug 2023 [monthly]

    Recruiting

Show 9 earlier versions
  1. Dec 2021 — Apr 2022 [monthly]

    Recruiting

  2. Sep 2021 — Dec 2021 [monthly]

    Recruiting

  3. Feb 2021 — Sep 2021 [monthly]

    Recruiting

  4. Jan 2021 — Feb 2021 [monthly]

    Recruiting

  5. Nov 2020 — Jan 2021 [monthly]

    Recruiting

  6. Oct 2020 — Nov 2020 [monthly]

    Recruiting

  7. Jul 2020 — Oct 2020 [monthly]

    Recruiting

  8. May 2020 — Jul 2020 [monthly]

    Recruiting

  9. Apr 2020 — May 2020 [monthly]

    Recruiting

    First recorded

Mar 2020

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Institut Pasteur
Data source: Institut Pasteur

For direct contact, visit the study record on ClinicalTrials.gov .