Determinants of SARS-COV2 (COVID-19) Persistence After Convalescence (C-PIC)
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ClinicalTrials.gov Identifier: NCT04448145 |
Recruitment Status :
Recruiting
First Posted : June 25, 2020
Last Update Posted : July 20, 2022
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Condition or disease |
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COVID-19 Corona Virus Infection SARS-CoV 2 |
Study Type : | Observational |
Estimated Enrollment : | 325 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
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 |
Actual Study Start Date : | March 26, 2020 |
Estimated Primary Completion Date : | May 1, 2024 |
Estimated Study Completion Date : | May 1, 2024 |

Group/Cohort |
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COVID-19 Positive
Participants who have been diagnosed with COVID-19 or experienced symptoms of COVID-19.
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COVID-19 Negative
Participants who have never tested positive for COVID-19.
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- Duration of SARS-CoV-2 viral persistence in naso/oropharyngeal samples [ Time Frame: Up to 96 weeks ]Duration of SARS-CoV-2 viral persistence defined as the number of days from symptom onset to the most recent positive SARS-CoV-2 PCR naso/oropharyngeal test, as determined by the established cycle threshold cut-off on a validated real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay.
- Duration of SARS-CoV-2 viral persistence in stool or rectal swab samples [ Time Frame: Up to 96 weeks ]Duration of SARS-CoV-2 viral persistence defined as the number of days from symptom onset to the most recent positive SARS-CoV-2 PCR stool or rectal swab samples, as determined by the established cycle threshold cut-off on a validated qRT-PCR assay.
- Duration of SARS-CoV-2 viral persistence in semen samples [ Time Frame: Up to 96 weeks ]Duration of SARS-CoV-2 viral persistence defined as the number of days from symptom onset to the most recent positive SARS-CoV-2 PCR semen sample, as determined by the established cycle threshold cut-off on a validated qRT-PCR assay.
- Duration of SARS-CoV-2 viral persistence in breast milk samples [ Time Frame: Up to 96 weeks ]Duration of SARS-CoV-2 viral persistence defined as the number of days from symptom onset to the most recent positive SARS-CoV-2 PCR breast milk sample, as determined by the established cycle threshold cut-off on a validated qRT-PCR assay.
- Prevalence of cell immune responses [ Time Frame: Up to 96 Weeks ]Prevalence defined as the number of participants with B cell, cluster of differentiation 4 (CD4), cluster of differentiation 8 (CD8), natural killer (NK), and natural killer T (NKT) cell immune responses. Plasma will be used for evaluation of neutralizing and binding antibody titers to SARS-CoV-2.
- Duration of COVID-19 Symptoms [ Time Frame: Up to 96 weeks ]The duration, in weeks, of COVID-19 symptoms as assessed by a symptom survey. Participants will complete health surveys at each study visit that include questions regarding COVID-19 symptoms, in addition to general health questions.
- Prevalence of post-viral sequelae [ Time Frame: Up to 96 weeks ]Prevalence defined as the number of participants that develop post-viral sequelae as assessed by a symptom survey. Participants will complete health surveys at each study visit that include questions regarding COVID-19 symptoms, in addition to general health questions.
- Prevalence of SARS-CoV-2 persistence and bacterial/viral community structures [ Time Frame: Up to 96 weeks ]Prevalence defined as the number of participants with SARS-CoV-2 persistence and bacterial/viral community structures.
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 7 Years and older (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
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.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04448145
Contact: Michael Yin, MD, MS | 212-305-7185 | mty4@cumc.columbia.edu | |
Contact: Lawrence Purpura, MD, MPH | 212-305-2220 | lp2745@cumc.columbia.edu |
United States, New York | |
Columbia University Medical Center | Recruiting |
New York, New York, United States, 10032 | |
Principal Investigator: Michael Yin, MD, MS | |
Sub-Investigator: Lawrence Purpura, MD, MPH |
Principal Investigator: | Michael Yin, MD, MS | Associate Professor of Medicine |
Publications:
Responsible Party: | Columbia University |
ClinicalTrials.gov Identifier: | NCT04448145 |
Other Study ID Numbers: |
AAAS9722 |
First Posted: | June 25, 2020 Key Record Dates |
Last Update Posted: | July 20, 2022 |
Last Verified: | July 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Plan Description: | De-identified patient data, including test results, may be shared with other researchers within Columbia University at the discretion of the Principal Investigator, and only when the Institutional Review Board (IRB) approval has been granted to allow for the sharing of such data. |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Novel Coronavirus |
COVID-19 Coronavirus Infections Respiratory Tract Infections Infections Pneumonia, Viral Pneumonia |
Virus Diseases Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases |