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ClinicalTrials.gov public records Last synced Jul 23, 2026, 7:38 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Viral Respiratory Illnesses Clear all
Terminated Phase 3 Interventional Results available

CONvalescent Plasma for Hospitalized Adults With COVID-19 Respiratory Illness (CONCOR-1)

NCT04348656
View directory record Official record
Conditions
COVID-19
Interventions
Convalescent plasma
Biological
Lead sponsor
Hamilton Health Sciences Corporation
Other
Eligibility
16 Years and older
Enrollment
940 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
Brooklyn, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Early Phase 1 Interventional

A Pilot Study of Human Amniotic Fluid for COVID19 Associated Respiratory Failure

NCT04319731
View directory record Official record
Conditions
SARS CoV-2 Infection
Interventions
Human Amniotic Fluid
Biological
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 23, 2023 · Synced Jul 23, 2026, 7:38 AM EDT
Active, not recruiting No phase listed Observational

Long Term Outcomes of Patients With COVID-19

NCT04360538
View directory record Official record
Conditions
Critical Illness, Corona Virus Infection, Respiratory Failure, Covid-19
Interventions
Quality of Life, Impact Event Score, Hospital anxiety and depression scale
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 23, 2026, 7:38 AM EDT
Completed No phase listed Observational

Inhaled Sedation in COVID-19-related Acute Respiratory Distress Syndrome (ISCA): an International Research Data Study in the Recent Context of Widespread Disease Resulting From the 2019 (SARS-CoV2) Coronavirus Pandemics (COVID-19)

NCT04383730
View directory record Official record
Conditions
Critically Illness, Sedation, Invasive Mechanical Ventilation, Acute Respiratory Distress Syndrome
Interventions
Intravenous sedation, Inhaled sedation
Drug
Lead sponsor
University Hospital, Clermont-Ferrand
Other
Eligibility
18 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 4, 2021 · Synced Jul 23, 2026, 7:38 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 4, 2022 · Synced Jul 23, 2026, 7:38 AM EDT
Completed No phase listed Observational

Viral Infection and Respiratory Illness Universal Study[VIRUS]: COVID-19 Registry

NCT04323787
View directory record Official record
Conditions
Coronavirus
Interventions
observational
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
Not listed
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
4
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Chicago, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2025 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Best Practices to Prevent COVID-19 Illness in Staff and People With Serious Mental Illness and Developmental Disabilities in Congregate Living Settings

NCT04726371
View directory record Official record
Conditions
Intellectual Disability, Developmental Disability, Axis I Diagnosis, Mental Illness, Covid19, Coronavirus
Interventions
Generic Best Practices, Tailored Best Practices
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
415 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 11, 2025 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Not applicable Interventional

Enhancing Electronic Health Systems to Decrease the Burden of Colon Cancer, Lung Cancer, Obesity, Vaccine-Preventable Illness, and LivER Cancer

NCT04540081
View directory record Official record
Conditions
Colon Cancer, Lung Cancer, Tobacco Use Cessation, Obesity, Pneumonia, Bacterial, Shingles, Hepatitis C
Interventions
Epic Healthy Planet Population Health Module
Other
Lead sponsor
University of California, Davis
Other
Eligibility
50 Years to 80 Years
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 26, 2023 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Not applicable Interventional Results available

Mobile Health Study and Enhanced Symptom Monitoring in COVID-19 Cancer Patients

NCT04397614
View directory record Official record
Conditions
Sars-CoV2, Covid-19
Interventions
mHealth Assessments
Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 23, 2023 · Synced Jul 23, 2026, 7:38 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: Clinical Validation

NCT05364268
View directory record Official record
Conditions
2019 Novel Coronavirus Disease, 2019 Novel Coronavirus Infection, 2019-nCoV Disease, COVID-19 Pandemic, COVID-19 Virus Disease, COVID-19 Virus Infection, Coronavirus Disease 2019, Coronavirus Disease-19, SARS-CoV-2 Infection
Interventions
Diagnostic Test: Diagnostic Software as Medical Device
Device
Lead sponsor
AudibleHealth AI, Inc.
Industry
Eligibility
18 Years to 100 Years
Enrollment
514 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Sunrise, Florida
Source: ClinicalTrials.gov public record
Updated Jul 19, 2022 · Synced Jul 23, 2026, 7:38 AM EDT
Withdrawn Phase 2 Interventional

Hydroxychloroquine Treatment of Healthcare Workers With COVID19 Illness at Montefiore

NCT04350450
View directory record Official record
Conditions
COVID, Coronavirus, COVID-19
Interventions
Hydroxychloroquine
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 99 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated May 26, 2020 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Phase 4 Interventional Results available

Clinical Trial of Niagen to Examine Recovery in People With Persistent Cognitive and Physical Symptoms After COVID-19

NCT04809974
View directory record Official record
Conditions
Covid19, Sequelae of; Infection, Cognitive Symptom
Interventions
Niagen
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 4, 2025 · Synced Jul 23, 2026, 7:38 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Home Testing of Respiratory Illness

NCT04245800
View directory record Official record
Conditions
Influenza -Like Illness, Influenza A, Influenza Type B, Respiratory Viral Infection, Respiratory Tract Infections
Interventions
Not listed
Lead sponsor
Evidation Health
Industry
Eligibility
18 Years and older
Enrollment
5,233 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
San Mateo, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2020 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

COVID-19 Study Assessing the Safety and Tolerability of Co-Formulated Anti-Spike (S) SARS-CoV-2 Monoclonal Antibodies (Casirivimab+Imdevimab) in Adult Volunteers

NCT05181683
View directory record Official record
Conditions
Healthy, Chronic Stable Illness
Interventions
Casirivimab+Imdevimab
Drug
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
2
States / cities
Miami, Florida • Winter Park, Florida
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced Jul 23, 2026, 7:38 AM EDT
Terminated Phase 3 Interventional Results available

Trial to Evaluate the Efficacy and Safety of Nitazoxanide (NTZ) for Post-Exposure Prophylaxis of COVID-19 and Other Viral Respiratory Illnesses in Elderly Residents of Long-Term Care Facilities (LTCF)

NCT04343248
View directory record Official record
Conditions
COVID-19, Viral Respiratory Illnesses
Interventions
Nitazoxanide, Placebo, Vitamin Super B-Complex
Drug · Dietary Supplement
Lead sponsor
Romark Laboratories L.C.
Industry
Eligibility
55 Years to 120 Years
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
4
States / cities
Kissimmee, Florida • Acworth, Georgia • Lake Charles, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2024 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Phase 2 Interventional Results available

A Study of Immune System Proteins in Participants With Mild to Moderate COVID-19 Illness

NCT04634409
View directory record Official record
Conditions
COVID-19
Interventions
Bamlanivimab, Etesevimab, Placebo, VIR-7831, Bebtelovimab
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
12 Years and older
Enrollment
1,755 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
127
States / cities
Birmingham, Alabama • Mesa, Arizona • Scottsdale, Arizona + 103 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2022 · Synced Jul 23, 2026, 7:38 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Pandemic Response Network

NCT04320862
View directory record Official record
Conditions
COVID-19, SARS-CoV-2, Coronavirus, Influenza -Like Illness, Lower Resp Tract Infection, Upper Resp Tract Infection
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
9,207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 16, 2021 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Safety of MEDI-534 Vaccine Against Respiratory Syncytial Virus (RSV) and Parainfluenza Virus Type 3 (PIV3) in Healthy Children

NCT00345670
View directory record Official record
Conditions
Healthy
Interventions
MEDI-534
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
1 Year to 9 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
12
States / cities
Fountain Valley, California • Shawnee, Kansas • Topeka, Kansas + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2008 · Synced Jul 23, 2026, 7:38 AM EDT
Terminated Phase 2 Interventional Results available

A Trial of GC4419 in Patients With Critical Illness Due to COVID-19

NCT04555096
View directory record Official record
Conditions
Covid19, SARS-CoV-2 Infection
Interventions
GC4419, Placebo
Drug
Lead sponsor
Galera Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
Iowa City, Iowa • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 17, 2022 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Not applicable Interventional Results available

The Respiratory Protection Effectiveness Clinical Trial

NCT01249625
View directory record Official record
Conditions
Influenza, Respiratory Syncytial Viruses, Paramyxoviridae Infections, Coronavirus, Rhinovirus
Interventions
N95 Respirator, Medical/surgical mask
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
2,862 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2018
U.S. locations
7
States / cities
Aurora, Colorado • Denver, Colorado • Washington D.C., District of Columbia + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2019 · Synced Jul 23, 2026, 7:38 AM EDT
Not listed No phase listed Observational

The DETECT(Digital Engagement & Tracking for Early Control, & Treatment) Study

NCT04336020
View directory record Official record
Conditions
Influenza, Virus
Interventions
Not listed
Lead sponsor
Scripps Translational Science Institute
Other
Eligibility
18 Years and older
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 15, 2024 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Phase 3 Interventional

Potent Antiviral Therapy for Critically Ill HIV Infected Patients Admitted to Intensive Care

NCT00028327
View directory record Official record
Conditions
HIV Infections
Interventions
Lamivudine/Zidovudine, Nelfinavir mesylate, Efavirenz, Lamivudine, Zidovudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
9
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 6 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2011 · Synced Jul 23, 2026, 7:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Psychological Well-being and Burnout in Healthcare Workers During the COVID-19 (Coronavirus Disease 2019) Pandemic

NCT05394051
View directory record Official record
Conditions
COVID-19, Burnout, Burnout, Professional, Work-related Illness, Work-Related Stress, SARS-CoV-2 Infection
Interventions
Positive Affect Regulation sKills (PARK)
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
555 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 18, 2024 · Synced Jul 23, 2026, 7:38 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Acute Respiratory Illness Surveillance (AcRIS) With Mobile Application in a Low-Interventional Decentralized Study.

NCT04748445
View directory record Official record
Conditions
Healthy
Interventions
SARS-CoV-2/Influenza/RSV RT-PCR
Diagnostic Test
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
9,151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Feb 22, 2024 · Synced Jul 23, 2026, 7:38 AM EDT