Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 22, 2026, 12:56 PM EDT

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Showing 361–384 of 1,235 matching trials from the live ClinicalTrials.gov search.
Conditions
COVID-19, SARS-CoV 2
Interventions
COVID-19 Convalescent Plasma
Biological
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
U.S. locations
6
States / cities
Aurora, Colorado • Colorado Springs, Colorado • Denver, Colorado + 2 more
Conditions
Long COVID
Interventions
Nirmatrelvir, Ritonavir, Placebo
Drug
Lead sponsor
Harlan M Krumholz
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Vaccination Refusal, COVID-19
Interventions
Factual messages, Narrative message, Mixed message
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
2,409 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
COVID, Neurologic Manifestations
Interventions
Observational study only
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
Up to 17 Years
Enrollment
3,568 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Completed Not applicable Interventional Accepts healthy volunteers Results available

NOWDx Test for the Detection of Antibodies to COVID-19

NCT04690413
Conditions
COVID-19, SARS-CoV-2, Coronavirus
Interventions
NOWDx COVID-19 Test
Device
Lead sponsor
NOWDiagnostics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
129 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
3
States / cities
Tucson, Arizona • West Palm Beach, Florida • Jackson, Tennessee
Completed Phase 3 Interventional Results available

Frontline Clinician Psilocybin Study

NCT05163496
Conditions
Burnout, Caregiver, Burnout, Professional, COVID-19, Depression, Post Traumatic Stress Disorder, Moral Injury
Interventions
Psilocybin (Usona Institute), Active placebo
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Seattle, Washington
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
Huntington Memorial Hospital
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Pasadena, California
Conditions
Long Covid19, Exercise Intolerance, Riboflavin-Responsive
Interventions
Restoring Energy with Sub-symptom Threshold Aerobic Rehabilitation Exercise, Light Stretching/Breathing Exercises
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 70 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Will Hydroxychloroquine Impede or Prevent COVID-19

NCT04341441
Conditions
COVID-19, Coronavirus, Coronavirus Infections, SARS-CoV 2
Interventions
Hydroxychloroquine - Daily Dosing, Hydroxychloroquine - Weekly Dosing, Placebo oral tablet, Monitoring Visit - Baseline, Monitoring Visit - Week 4, Monitoring Visit - Week 8, Weekly Assessment
Drug · Other · Diagnostic Test
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years to 75 Years
Enrollment
624 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Detroit, Michigan
Conditions
COVID-19 Prevention
Interventions
Q-Griffithsin 3.0, Q-Griffithsin 6.0
Drug
Lead sponsor
Kenneth Palmer
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Louisville, Kentucky
Conditions
COVID-19 Virus Disease
Interventions
Not listed
Lead sponsor
National Institute on Minority Health and Health Disparities (NIMHD)
NIH
Eligibility
18 Years to 65 Years
Enrollment
464 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Recruiting No phase listed Observational Accepts healthy volunteers

ARMOR Study: COVID-19 Seroprevalence Among Healthcare Workers

NCT04367857
Conditions
Covid-19, Coronavirus Infection, Coronavirus
Interventions
COVID-19 Serology, Health Care Worker Survey
Other · Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
New York, New York
Conditions
Hypertension, COVID
Interventions
ACEI/ARB, Non-ACEI/ARB, ACEI, ARB
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
22,213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Salt Lake City, Utah
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
Conditions
COVID-19, Coronavirus Disease 2019, Influenza
Interventions
COVID-19 Vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
999 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
New York, New York
Active, not recruiting No phase listed Observational Accepts healthy volunteers

COVID-19 Vaccine Responses in PIDD Subjects

NCT05321407
Conditions
X-linked Agammaglobulinemia, XLA, Primary Immune Deficiency, CVID, Common Variable Immunodeficiency, Primary Antibody Deficiencies, Secondary Hypogammaglobulinemia
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
6 Months and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
3
States / cities
St. Petersburg, Florida • Chapel Hill, North Carolina • Durham, North Carolina
Not listed Not applicable Interventional Accepts healthy volunteers

Tools for Wellbeing COVID-19 National Study of Undergraduate Students

NCT04414371
Conditions
Stress, Anxiety, Depression, Resilience, Wellbeing, Mood
Interventions
Yoga
Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
New Brunswick, New Jersey
Conditions
Diagnoses Disease, Covid19
Interventions
Doctorgram Patient Kit
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Stanford, California
Conditions
SARS-CoV-2 Infection, COVID-19
Interventions
BNT162b1, BNT162b2, Placebo, BNT162b2SA
Biological · Other
Lead sponsor
BioNTech SE
Industry
Eligibility
12 Years and older
Enrollment
46,969 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
154
States / cities
Athens, Alabama • Birmingham, Alabama • Huntsville, Alabama + 106 more
Conditions
COVID
Interventions
Pulmozyme, Placebo
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
3 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
Boston, Massachusetts • Weymouth, Massachusetts
Conditions
Conjunctivitis, SARS-CoV-2, COVID-19, Ocular Infection, Viral, Ocular Inflammation
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
COVID - 19, Influenza A, Influenza B
Interventions
Investigational Flu A/B And Covid-19 Diagnostic Test
Diagnostic Test
Lead sponsor
iHealth Labs inc
Industry
Eligibility
2 Years and older
Enrollment
588 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
14
States / cities
Birmingham, Alabama • Trussville, Alabama • Dublin, California + 10 more
Conditions
COVID-19
Interventions
Acalabrutinib
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
31
States / cities
Anniston, Alabama • Mobile, Alabama • Escondido, California + 25 more
Completed No phase listed Observational Accepts healthy volunteers

Post-marketing Safety of Elasomeran/Davesomeran and Andusomeran

NCT06130345
Conditions
SARS-CoV-2
Interventions
SPIKEVAX
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
Not listed
Enrollment
15,196,685 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York