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ClinicalTrials.gov public records Last synced Oct 1, 2026, 2:49 PM EDT

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Showing 1–24 of 60 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: COVID-19 Convalescent Plasma Clear all
Completed No phase listed Observational Accepts healthy volunteers

Collection of Anti-SARS-CoV-2 Immune Plasma

NCT04344977
View directory record Official record
Conditions
Coronavirus Disease 2019 (COVID-19)
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
3
States / cities
Torrance, California • Miami, Florida • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 5, 2021 · Synced Oct 1, 2026, 2:49 PM EDT
Completed Phase 1 Interventional Results available

Human Convalescent Plasma for High Risk Children Exposed or Infected With SARS-CoV-2 (COVID-19)

NCT04377672
View directory record Official record
Conditions
SARS-CoV-2 Infection
Interventions
Anti-SARS-CoV-2 Human Convalescent Plasma
Biological
Lead sponsor
Johns Hopkins University
Other
Eligibility
1 Month to 18 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 27, 2024 · Synced Oct 1, 2026, 2:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Study of COVID 19 Convalescent Plasma in High Risk Patients With COVID 19 Infection

NCT04392232
View directory record Official record
Conditions
Coronavirus, COVID-19, Convalescent Plasma
Interventions
Convalescent Plasma
Drug
Lead sponsor
TriHealth Inc.
Other
Eligibility
16 Years and older
Enrollment
159 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
2
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 7, 2021 · Synced Oct 1, 2026, 2:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Convalescent Plasma to Stem Coronavirus (CSSC-001)

NCT04323800
View directory record Official record
Conditions
Coronavirus, Convalescence
Interventions
Anti- SARS-CoV-2 Plasma, SARS-CoV-2 non-immune Plasma
Biological
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
25
States / cities
Birmingham, Alabama • Whiteriver, Arizona • La Jolla, California + 21 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Oct 1, 2026, 2:49 PM EDT
Terminated Phase 2 Interventional Results available

Convalescent Plasma in the Early Treatment of High-Risk Patients With SARS-CoV-2 (COVID-19) Infection

NCT04513158
View directory record Official record
Conditions
Covid19
Interventions
Convalescent Plasma
Biological
Lead sponsor
Joseph M. Flynn, D.O., MPH
Other
Eligibility
18 Years to 99 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
4
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 24, 2024 · Synced Oct 1, 2026, 2:49 PM EDT
Completed Phase 3 Interventional Results available

Convalescent Plasma in Outpatients With COVID-19

NCT04355767
View directory record Official record
Conditions
Covid19
Interventions
Convalescent Plasma, Saline
Biological
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
511 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
53
States / cities
Chandler, Arizona • Phoenix, Arizona • La Jolla, California + 41 more
Source: ClinicalTrials.gov public record
Updated Oct 19, 2021 · Synced Oct 1, 2026, 2:49 PM EDT
Terminated Phase 2 Interventional Results available

Convalescent Plasma as Treatment for Subjects With Early COVID-19 Infection

NCT04456413
View directory record Official record
Conditions
COVID-19
Interventions
Convalescent Plasma, Best Supportive Care
Biological · Other
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 10, 2023 · Synced Oct 1, 2026, 2:49 PM EDT
Terminated Phase 3 Interventional Results available

VA CoronavirUs Research and Efficacy Studies-1

NCT04539275
View directory record Official record
Conditions
COVID-19
Interventions
Convalescent Plasma, Masked Saline Placebo
Drug · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
23
States / cities
Birmingham, Alabama • Phoenix, Arizona • Aurora, Colorado + 20 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2022 · Synced Oct 1, 2026, 2:49 PM EDT
Terminated Early Phase 1 Interventional

Convalescent Plasma in ICU Patients With COVID-19-induced Respiratory Failure

NCT04353206
View directory record Official record
Conditions
Covid-19, Sars-CoV2
Interventions
Multiple Doses of Anti-SARS-CoV-2 convalescent plasma
Biological
Lead sponsor
Noah Merin
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
2
States / cities
Los Angeles, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 8, 2021 · Synced Oct 1, 2026, 2:49 PM EDT
Terminated Phase 2 Interventional Results available

Convalescent Plasma as Treatment for Hospitalized Subjects With COVID-19 Infection

NCT04343755
View directory record Official record
Conditions
COVID-19
Interventions
Convalescent Plasma
Biological
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 18, 2023 · Synced Oct 1, 2026, 2:49 PM EDT
Completed Phase 2 Interventional Results available

Convalescent Plasma for Treatment of COVID-19 Patients With Pneumonia

NCT04374565
View directory record Official record
Conditions
Corona Virus Infection, SARS-CoV 2, SARS Pneumonia, Pneumonia
Interventions
High-Titer Anti-SARS-CoV-2 (COVID 19) Convalescent Plasma
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 1, 2022 · Synced Oct 1, 2026, 2:49 PM EDT
Completed Phase 3 Interventional Results available

Convalescent Plasma Collection and Treatment in Pediatrics and Adults

NCT04376034
View directory record Official record
Conditions
COVID19, Coronavirus Infection, Coronavirus, Virus Diseases, RNA Virus Infections
Interventions
Convalescent Plasma
Biological
Lead sponsor
West Virginia University
Other
Eligibility
31 Days and older
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated May 29, 2026 · Synced Oct 1, 2026, 2:49 PM EDT
Completed Phase 2 Interventional Results available

Coronavirus Disease 2019 (COVID-19) Antibody Plasma Research Study in Hospitalized Patients

NCT04524507
View directory record Official record
Conditions
COVID-19
Interventions
High-titer Convalescent COVID-19 Plasma (CCP1), Standard-titer Convalescent COVID-19 plasma (CCP2)
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 3, 2021 · Synced Oct 1, 2026, 2:49 PM EDT
No Longer Available No phase listed Expanded access

Experimental Expanded Access Treatment With Convalescent Plasma for the Treatment of Patients With COVID-19

NCT04445207
View directory record Official record
Conditions
COVID, Sars-CoV2, Corona Virus Infection
Interventions
Convalescent Plasma
Biological
Lead sponsor
Jonathan Gerber
Other
Eligibility
12 Years and older
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 25, 2023 · Synced Oct 1, 2026, 2:49 PM EDT
Completed Phase 2 Interventional Results available

Plasma Therapy of COVID-19 in Severely Ill Patients

NCT04359810
View directory record Official record
Conditions
SARS-CoV-2 Infection
Interventions
Convalescent Plasma (anti-SARS-CoV-2 plasma), Non-convalescent Plasma (control plasma)
Biological
Lead sponsor
Max O'Donnell
Other
Eligibility
18 Years and older
Enrollment
223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 1, 2026, 2:49 PM EDT
Completed Phase 2Phase 3 Interventional

The Fleming [FMTVDM] Directed CoVid-19 Treatment Protocol

NCT04349410
View directory record Official record
Conditions
CoVid 19 Positive
Interventions
Hydroxychloroquine, Azithromycin, Hydroxychloroquine, Doxycycline, Hydroxychloroquine, Clindamycin, Hydroxychloroquine, Clindamycin, Primaquine - low dose., Hydroxychloroquine, Clindamycin, Primaquine - high dose., Remdesivir, Tocilizumab, Methylprednisolone, Interferon-Alpha2B, Losartan, Convalescent Serum
Drug
Lead sponsor
The Camelot Foundation
Other
Eligibility
Not listed
Enrollment
1,800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 12, 2020 · Synced Oct 1, 2026, 2:49 PM EDT
Completed No phase listed Observational

COVID-19 Infection in Patients Receiving Anti-CD20 Therapy

NCT04884477
View directory record Official record
Conditions
COVID-19, Immunosuppressed Host, Convalescent Plasma, Anti-CD20 Therapy
Interventions
Convalescent Plasma
Biological
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
342 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Oct 1, 2026, 2:49 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Collection of SARS CoV-2 (COVID-19) Virus Secretions and Serum for Countermeasure Development

NCT04956445
View directory record Official record
Conditions
Covid19
Interventions
Not listed
Lead sponsor
Tulane University
Other
Eligibility
6 Months to 120 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
2
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Oct 1, 2026, 2:49 PM EDT
Terminated Phase 2 Interventional Results available

ANTIBODY-LEVEL BASED ANALYSIS OF COVID-19 CONVALESCENT SERUM (ABACCuS)

NCT04432272
View directory record Official record
Conditions
COVID-19, Severe Acute Respiratory Syndrome (SARS), Coronavirus Infections
Interventions
COVID-19 convalescent plasma
Biological
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 9, 2022 · Synced Oct 1, 2026, 2:49 PM EDT
Withdrawn Phase 3 Interventional Accepts healthy volunteers

Phase 3 Open-Label Controlled Trial of Convalescent Plasma in Early COVID-19 Infection

NCT06084351
View directory record Official record
Conditions
Covid19
Interventions
Convalescent Plasma, Standard of Care
Drug · Other
Lead sponsor
Larkin Community Hospital
Other
Eligibility
40 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
South Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Oct 1, 2026, 2:49 PM EDT
No Longer Available No phase listed Expanded access

Treatment Of CORONAVIRUS DISEASE 2019 (COVID-19) With Anti-Sars-CoV-2 Convalescent Plasma (ASCoV2CP)

NCT04360486
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2
Interventions
Anti-Sars-CoV-2 Convalescent Plasma
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
Not listed
U.S. locations
26
States / cities
Oceanside, California • San Diego, California • Fort Carson, Colorado + 15 more
Source: ClinicalTrials.gov public record
Updated May 6, 2023 · Synced Oct 1, 2026, 2:49 PM EDT
Not listed Phase 2 Interventional

Selenium as a Potential Treatment for Moderately-ill, Severely-ill, and Critically-ill COVID-19 Patients.

NCT04869579
View directory record Official record
Conditions
Covid19
Interventions
Selenium (as Selenious Acid), Placebo
Drug · Other
Lead sponsor
CHRISTUS Health
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Longview, Texas
Source: ClinicalTrials.gov public record
Updated Aug 3, 2021 · Synced Oct 1, 2026, 2:49 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Analysis of Coronavirus Disease 19 (COVID-19) Convalescent Plasma

NCT04497779
View directory record Official record
Conditions
Asymptomatic COVID-19 Infection Laboratory-Confirmed, Symptomatic COVID-19 Infection Laboratory-Confirmed
Interventions
Biospecimen Collection, Diagnostic Laboratory Biomarker Analysis, Electronic Health Record Review, Questionnaire Administration
Procedure · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Dec 5, 2025 · Synced Oct 1, 2026, 2:49 PM EDT