Acquiring Convalescent Specimens for COVID-19 Antibodies
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ClinicalTrials.gov Identifier: NCT04342195 |
Recruitment Status :
Completed
First Posted : April 10, 2020
Last Update Posted : July 20, 2022
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Condition or disease | Intervention/treatment |
---|---|
COVID-19 Coronavirus Infection Corona Virus Infection | Procedure: Blood draw |
Study Type : | Observational |
Actual Enrollment : | 15 participants |
Observational Model: | Case-Only |
Time Perspective: | Cross-Sectional |
Official Title: | Acquiring Convalescent Specimens to Isolate and Identify Potent Monoclonal Antibodies Against COVID-19 |
Actual Study Start Date : | March 25, 2020 |
Actual Primary Completion Date : | March 12, 2021 |
Actual Study Completion Date : | March 12, 2021 |

- Procedure: Blood draw
Participants will have approximately 45 ml of whole blood drawn (3 Tablespoons) drawn at the study visit.
- Number of antibodies against coronaviruses isolated and identified from patient samples [ Time Frame: Up to 12 months after collection visit ]The blood specimen will be proceeded into peripheral blood mononuclear cells and plasma to be stored for testing. In brief, CD27+ memory B cells that can bind to a SARS-CoV-2 S protein bait will be sorted by flow cytometry and RNA will be extracted to obtain heavy and light chain sequences. Antibody sequences will be annotated using bioinformatics approaches, and candidate sequences will be cloned. Purified antibodies will be characterized and neutralization breadth and potency against SARS-CoV-2 and other related coronaviruses will be assessed using neutralization assays.
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Age 18 to 65 (inclusive)
- Confirmed COVID-19 infection by a FDA-approved molecular based assay (including those under emergency use authorization) of respiratory or blood specimens;
- If symptomatic with COVID-19, must have evidence of improvement of symptoms and a duration of at least 4 weeks from the onset of symptoms to day of enrollment;
- If asymptomatic, must have a duration of at least 4 weeks from first positive molecular based COVID-19 assay to day of enrollment
Exclusion Criteria:
- <18 years or >65 years old
- No confirmed diagnosis of COVID-19

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): NCT04342195
United States, New York | |
Columbia University Irving Medical Center/NYP | |
New York, New York, United States, 10032 |
Principal Investigator: | David Ho, M.D, | Columbia University |
Responsible Party: | Columbia University |
ClinicalTrials.gov Identifier: | NCT04342195 |
Other Study ID Numbers: |
AAAS9517 |
First Posted: | April 10, 2020 Key Record Dates |
Last Update Posted: | July 20, 2022 |
Last Verified: | July 2022 |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Infections Communicable Diseases COVID-19 Coronavirus Infections Disease Attributes Pathologic Processes Respiratory Tract Infections Pneumonia, Viral |
Pneumonia Virus Diseases Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases |