Clinical trial Recruiting at 1 site Observational Ages 7 and up

Understanding how long COVID-19 can persist after recovery

Official title: Characterizing SARS-CoV-2 Persistence in Host Reservoirs, Post-viral Sequelae, and Associations With Host and Viral Determinants in a Cohort of Convalescent COVID-19 Cases

Run by Columbia University · NCT04448145 · Data updated 2026-11-12

This study is trying to find out how long the COVID-19 virus can stick around in people who have recovered and how quickly their bodies make antibodies.

Quick facts

Study typeObservational
Ages7 Years and up
SexAll
Enrollment800 (estimated)
SponsorColumbia University
Academic / other
Locations1 site (New York, New York)
StatusRecruiting
StartedMarch 26, 2020
Main results expectedAugust 2027
Study endsAugust 2027
Registry record updatedOctober 5, 2026
Trial IDNCT04448145 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals aged 7 and older who have had a laboratory-confirmed diagnosis of COVID-19 or were symptomatic with known exposure.

Probably not a fit

Patients under the age of 7 or those with intercurrent conditions that may confound study findings will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to investigate the persistence of SARS-CoV-2 in individuals who have recovered from COVID-19. It will enroll 325 participants with confirmed COVID-19 diagnoses and 25 negative controls to analyze how long the virus can remain in various body fluids and how quickly antibodies develop. Participants will complete surveys and provide biological samples over a 24-month period to assess post-infectious complications and viral persistence. The study will utilize a combination of laboratory testing and participant-reported data to gather comprehensive insights.

Why it matters

Potential benefit: If successful, this study could provide critical information on the duration of viral shedding and antibody response, which may inform public health guidelines and patient management.

How similar studies have gone: Other studies have explored viral persistence in COVID-19 patients, but this specific approach focusing on various body fluids and long-term follow-up is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Laboratory confirmed SARS-CoV-2 using currently available laboratory testing techniques (e.g.,RT-PCR, Immunoglobulin M (IgM) /IgG) or clinical history compatible with a COVID-19 like illness(fever, cough, shortness of breath).
* Negative participants with no known prior COVID-19 diagnosis or COVID vaccine
* At least 7 years of age
* Participants are eligible to provide semen and breast milk samples if they are 18 years of age or older

Exclusion Criteria:

* Age \<7
* Intercurrent conditions that in the opinion of the investigator would confound the findings of the study.

Where it's running

  • Columbia University Medical Center
    New York, New York, United States
    Recruiting

Study contacts

  • Principal investigator: Michael Yin, MD, MS — Associate Professor of Medicine
  • Study coordinator: Michael Yin, MD, MS
  • Email: mty4@cumc.columbia.edu
  • Phone: 212-305-7185

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.