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ClinicalTrials.gov public records Last synced Oct 2, 2026, 1:23 AM EDT

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Showing 1–24 of 242 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Severe Acute Respiratory Infection Clear all
Completed No phase listed Observational Accepts healthy volunteers

Investigating Severe Acute Respiratory Syndrome (SARS)

NCT00066209
View directory record Official record
Conditions
SARS Virus
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 2, 2026, 1:23 AM EDT
Terminated Phase 2 Interventional Results available

COVID-19 and Anti-CD14 Treatment Trial

NCT04391309
View directory record Official record
Conditions
Coronavirus Disease 2019 (COVID-19), Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)
Interventions
anti-CD14, Placebo, remdesivir
Biological · Other · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
5
States / cities
Sarasota, Florida • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 26, 2023 · Synced Oct 2, 2026, 1:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19: A Prevalence Study of Two ART Centres After the Pandemic Lockdown in the USA (COVID-19 Free Clinics)

NCT04466644
View directory record Official record
Conditions
COVID-19
Interventions
ELISA, RT-PCR
Diagnostic Test
Lead sponsor
Igenomix
Industry
Eligibility
18 Years and older
Enrollment
340 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
2
States / cities
Boston, Massachusetts • Pleasant Grove, Utah
Source: ClinicalTrials.gov public record
Updated Sep 14, 2020 · Synced Oct 2, 2026, 1:23 AM EDT
Recruiting Phase 2 Interventional

A Clinical Trial to Evaluate agenT-797 Plus Standard of Care in Participants With Severe Pneumonia With Moderate to Severe Acute Hypoxemic Respiratory Failure

NCT07615010
View directory record Official record
Conditions
Pneumonia
Interventions
agenT-797, Placebo, Standard of Care (SOC)
Drug
Lead sponsor
MiNK Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
San Francisco, California • Houston, Texas • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 2, 2026, 1:23 AM EDT
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 2, 2026, 1:23 AM EDT
Completed Phase 2 Interventional Results available

A Study to Learn About the Study Medicines (Nirmatrelvir Plus Ritonavir) in People Aged 12 Years or Older With COVID-19 and a Compromised Immune System

NCT05438602
View directory record Official record
Conditions
COVID-19
Interventions
Nirmatrelvir, Ritonavir, Placebo for nirmatrelvir, Placebo for ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
25
States / cities
San Francisco, California • Washington D.C., District of Columbia • Doral, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2024 · Synced Oct 2, 2026, 1:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluation of the AudibleHealth Dx AI/ML-Based Dx SaMD Using FCV-SDS in the Diagnosis of COVID-19 Illness

NCT05175690
View directory record Official record
Conditions
COVID19
Interventions
Diagnostic Software as Medical Device
Diagnostic Test
Lead sponsor
AudibleHealth AI, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 5, 2022 · Synced Oct 2, 2026, 1:23 AM EDT
Terminated Phase 3 Interventional Results available

Efficacy and Safety Study of IV Ravulizumab in Patients With COVID-19 Severe Pneumonia

NCT04369469
View directory record Official record
Conditions
COVID-19 Severe Pneumonia, Acute Lung Injury, Acute Respiratory Distress Syndrome, Pneumonia, Viral
Interventions
Ravulizumab, BSC
Biological · Other
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
24
States / cities
Little Rock, Arkansas • Los Angeles, California • Orange, California + 17 more
Source: ClinicalTrials.gov public record
Updated May 24, 2022 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2Phase 3 Interventional Results available

EPIC-HR: Study of Oral PF-07321332/Ritonavir Compared With Placebo in Nonhospitalized High Risk Adults With COVID-19

NCT04960202
View directory record Official record
Conditions
COVID-19
Interventions
PF-07321332, Ritonavir, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
2,091 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
73
States / cities
Pelham, Alabama • Mesa, Arizona • Tucson, Arizona + 46 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Melatonin and Vitamin C on COVID-19

NCT04530539
View directory record Official record
Conditions
Covid19, SARS-CoV Infection
Interventions
Vitamin C, melatonin, Placebo, Symptom Survey
Dietary Supplement · Other
Lead sponsor
Lancaster General Hospital
Other
Eligibility
50 Years and older
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2022 · Synced Oct 2, 2026, 1:23 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Study of Cord Blood Derived Mesenchymal Stem Cells for Treatment of Moderate, Severe or Critical Pneumonia

NCT04565665
View directory record Official record
Conditions
COVID-19 Infection, COVID-19-Associated Acute Respiratory Distress Syndrome, Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm, Symptomatic COVID-19 Infection Laboratory-Confirmed
Interventions
Best Practice, Mesenchymal Stem Cell
Other · Biological
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Oct 2, 2026, 1:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Testing Sample Acquisition Throughput and Efficiency

NCT04532411
View directory record Official record
Conditions
SARS-CoV Infection, Respiratory Viral Infection, Personal Protective Equipment, Covid19
Interventions
Personal Protective Testing Booth
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
28,948 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 23, 2023 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 1 Interventional Results available

A Placebo Controlled Trial of Bempegaldesleukin (BEMPEG; NKTR-214) With Standard of Care in Patients With Mild COVID-19

NCT04646044
View directory record Official record
Conditions
Covid-19, Coronavirus Disease 2019
Interventions
Bempegaldesleukin, Standard of Care, Placebo
Drug · Other
Lead sponsor
Nektar Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
4
States / cities
Hialeah, Florida • Winter Park, Florida • Mesquite, Texas
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Oct 2, 2026, 1:23 AM EDT
Terminated No phase listed Observational

Blood Stem Cell Transplant in Treating Patients With Hematologic Cancer

NCT00008216
View directory record Official record
Conditions
Adult Langerhans Cell Histiocytosis, Childhood Langerhans Cell Histiocytosis, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms
Interventions
Peripheral Blood Stem Cell Transplantation
Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 6, 2014 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2 Interventional Results available

Investigating Otilimab in Patients With Severe Pulmonary COVID-19 Related Disease

NCT04376684
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome
Interventions
Otilimab, Placebo 1, Placebo 2, Standard of care
Biological · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
1,156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
21
States / cities
Mobile, Alabama • Little Rock, Arkansas • Sacramento, California + 18 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2024 · Synced Oct 2, 2026, 1:23 AM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Safety, Immunogenicity, and Efficacy of INO-4800 for COVID-19 in Adults at High Risk of SARS-CoV-2 Exposure

NCT04642638
View directory record Official record
Conditions
Coronavirus Infection, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), COVID-19 Disease
Interventions
INO-4800, CELLECTRA® 2000, Placebo
Drug · Device
Lead sponsor
Inovio Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
1,307 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
16
States / cities
Chandler, Arizona • Phoenix, Arizona • Tempe, Arizona + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2023 · Synced Oct 2, 2026, 1:23 AM EDT
Suspended Phase 1 Interventional

Safety and Effectiveness of Placental Derived Exosomes and Umbilical Cord Mesenchymal Stem Cells in Moderate to Severe Acute Respiratory Distress Syndrome (ARDS) Associated With the Novel Corona Virus Infection (COVID-19)

NCT05387278
View directory record Official record
Conditions
COVID-19 Acute Respiratory Distress Syndrome, Respiratory Distress Syndrome
Interventions
EV-Pure™ and WJ-Pure™, Placebo
Drug
Lead sponsor
Vitti Labs, LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Liberty, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 2, 2026, 1:23 AM EDT
Terminated Phase 2 Interventional

A Study to Evaluate OP-101 (Dendrimer N-acetyl-cysteine) in Severe Coronavirus Disease 2019 (COVID-19) Patients

NCT04458298
View directory record Official record
Conditions
COVID-19
Interventions
OP-101, Placebo
Drug
Lead sponsor
Ashvattha Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
8
States / cities
Loma Linda, California • Fort Lauderdale, Florida • Jacksonville, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2023 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Live Microbials to Boost Anti-Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) Immunity Clinical Trial

NCT04847349
View directory record Official record
Conditions
Covid19
Interventions
OL-1, standard dose, OL-1, high dose, Placebo
Dietary Supplement
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 60 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 1, 2022 · Synced Oct 2, 2026, 1:23 AM EDT
Completed No phase listed Observational

Michigan Medicine COVID-19 Cohort: Clinical Characteristics, Inflammatory Markers and Outcomes of Patients Hospitalized for COVID-19

NCT04706533
View directory record Official record
Conditions
Covid19, Kidney Diseases, Inflammation, SARS-CoV Infection
Interventions
Biomarkers of inflammation
Diagnostic Test
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
3,402 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 31, 2023 · Synced Oct 2, 2026, 1:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Related Health and Infection Control Practices Among Dentists

NCT04423770
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2
Interventions
No intervention
Other
Lead sponsor
American Dental Association
Other
Eligibility
18 Years and older
Enrollment
2,196 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2 Interventional Results available

Study of M5049 in Participants With COVID-19 Pneumonia (ANEMONE)

NCT04448756
View directory record Official record
Conditions
Coronavirus Disease 2019
Interventions
M5049, Placebo
Drug
Lead sponsor
EMD Serono Research & Development Institute, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
5
States / cities
Los Angeles, California • San Diego, California • Detroit, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 6, 2022 · Synced Oct 2, 2026, 1:23 AM EDT
Terminated Phase 2 Interventional Results available

COVID-19 Administration of Single-Dose Subcutaneous Anti- Spike(s) SARS-CoV-2 Monoclonal Antibodies Casirivimab and Imdevimab in High-Risk Pediatric Participants Under 12 Years of Age

NCT04992273
View directory record Official record
Conditions
COVID-19
Interventions
casirivimab+imdevimab
Drug
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
1 Minute to 12 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
7
States / cities
Anaheim, California • Miami, Florida • Stony Brook, New York + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Oct 2, 2026, 1:23 AM EDT