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ClinicalTrials.gov public records Last synced Oct 24, 2026, 9:03 AM EDT

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Showing 673–696 of 2,349 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Covid19 Clear all
Withdrawn Phase 3 Interventional Accepts healthy volunteers

A Study to Evaluate the Efficacy of Xlear vs. Placebo for Acute COVID-19 Infection

NCT04858620
View directory record Official record
Conditions
Covid19
Interventions
Xlear Nasal Spray, Placebo
Drug
Lead sponsor
Larkin Community Hospital
Other
Eligibility
18 Years to 90 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Oct 24, 2026, 9:03 AM EDT
Enrolling by invitation No phase listed Observational

Microbial and Cytokine Signatures in Long COVID Patients

NCT07074158
View directory record Official record
Conditions
Post-Acute COVID-19 Syndrome
Interventions
Not listed
Lead sponsor
Palo Alto Medical Foundation
Other
Eligibility
18 Years and older
Enrollment
150 participants
Timeline
2025 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jul 20, 2025 · Synced Oct 24, 2026, 9:03 AM EDT
Active, not recruiting Not applicable Interventional

HOBSCOTCH for People With Post Acute COVID-19 Syndrome (PACS)

NCT06391489
View directory record Official record
Conditions
Post Acute COVID 19 Syndrome, Memory Impairment, Memory Dysfunction, Cognitive Dysfunction
Interventions
HOBSCOTCH-PACS
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
20 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Oct 24, 2026, 9:03 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

KBP-201 COVID-19 Vaccine Trial in Healthy Volunteers

NCT04473690
View directory record Official record
Conditions
Covid19
Interventions
Low Dose of KBP-COVID-19, High Dose of KBP-COVID-19, Placebo
Biological
Lead sponsor
KBio Inc
Industry
Eligibility
18 Years to 85 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
6
States / cities
West Palm Beach, Florida • Meridian, Idaho • Winston-Salem, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated May 18, 2025 · Synced Oct 24, 2026, 9:03 AM EDT
Completed Not applicable Interventional

Identification of a Responsive Subpopulation to Hydroxychloroquine in COVID-19 Patients Using Machine Learning

NCT04423991
View directory record Official record
Conditions
COVID-19, Coronavirus, Mortality
Interventions
COViage
Device
Lead sponsor
Dascena
Industry
Eligibility
Not listed
Enrollment
290 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Jun 9, 2020 · Synced Oct 24, 2026, 9:03 AM EDT
Completed No phase listed Observational

Investigating Immune Escape by SARS-CoV-2 Variants

NCT05171803
View directory record Official record
Conditions
COVID-19; Immunity
Interventions
No intervention
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 100 Years
Enrollment
38 participants
Timeline
2021 – 2023
U.S. locations
1
States / cities
San Dimas, California
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Oct 24, 2026, 9:03 AM EDT
Terminated Phase 3 Interventional Results available

A Study of Baricitinib (LY3009104) in Children With COVID-19

NCT05074420
View directory record Official record
Conditions
Covid19, Corona Virus Infection
Interventions
Baricitinib
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
1 Year to 18 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
3
States / cities
Orlando, Florida • Detroit, Michigan • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 24, 2026, 9:03 AM EDT
Not listed Phase 3 Interventional

Dapsone Coronavirus SARS-CoV-2 Trial (DAP-CORONA) COVID-19

NCT04935476
View directory record Official record
Conditions
COVID-19
Interventions
Dapsone 85 mg PO BID, Placebo 85 mg PO BID
Drug
Lead sponsor
McGill University Health Centre/Research Institute of the McGill University Health Centre
Other
Eligibility
40 Years and older
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
5
States / cities
Phoenix, Arizona • High Point, North Carolina • Philadelphia, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 24, 2022 · Synced Oct 24, 2026, 9:03 AM EDT
Not listed Phase 2 Interventional

Safety and Efficacy of Therapeutic Anticoagulation on Clinical Outcomes in Hospitalized Patients With COVID-19

NCT04377997
View directory record Official record
Conditions
Cardiovascular Diseases, COVID-19
Interventions
Enoxaparin
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 22, 2022 · Synced Oct 24, 2026, 9:03 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Learn About How Itraconazole Affects the Blood Level of Study Medicine (PF-07817883) in Healthy Adults.

NCT05822440
View directory record Official record
Conditions
Healthy
Interventions
PF-07817883, Itraconazole
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 4, 2024 · Synced Oct 24, 2026, 9:03 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Working Towards Empowered Community-driven Approaches to Increase Vaccination and Preventive Care Engagement

NCT05841810
View directory record Official record
Conditions
COVID-19
Interventions
mHealth Outreach, Care Coordination
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
398 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
4
States / cities
El Cajon, California • Escondido, California • La Jolla, California + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2025 · Synced Oct 24, 2026, 9:03 AM EDT
Completed Phase 1 Interventional

High-dose Hydroxychloroquine for the Treatment of Ambulatory Patients With Mild COVID-19

NCT04351620
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced Oct 24, 2026, 9:03 AM EDT
Completed Phase 1 Interventional

A Study of TL-895 With Standard Available Treatment Versus Standard Available Treatment for the Treatment of COVID-19 in Patients With Cancer

NCT04419623
View directory record Official record
Conditions
COVID-19, Sars-CoV2, Cancer, Solid Tumor, Carcinoma, Blood Cancer
Interventions
TL-895
Drug
Lead sponsor
Telios Pharma, Inc.
Industry
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
2
States / cities
Augusta, Georgia • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 12, 2021 · Synced Oct 24, 2026, 9:03 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

ImmuneSense COVID-19 Variant Study

NCT05054088
View directory record Official record
Conditions
Covid19
Interventions
T-Detect COVID test
Device
Lead sponsor
Adaptive Biotechnologies
Industry
Eligibility
18 Years to 89 Years
Enrollment
203 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
15
States / cities
Phoenix, Arizona • Fullerton, California • Los Angeles, California + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 7, 2022 · Synced Oct 24, 2026, 9:03 AM EDT
Active, not recruiting Phase 4 Interventional

Impact of Immunosuppression Adjustment on COVID-19 Vaccination Response in Kidney Transplant Recipients

NCT05060991
View directory record Official record
Conditions
COVID-19, Immunosuppression, Vaccine Response Impaired
Interventions
Reduction in antimetabolite immunosuppression
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Apr 3, 2026 · Synced Oct 24, 2026, 9:03 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

TD-0903 Pharmacokinetics Study in Healthy Participants With Supplemental Oxygenation

NCT05091723
View directory record Official record
Conditions
Acute Lung Injury (ALI) Due to Coronavirus Disease-2019 (COVID-19)
Interventions
Nezulcitinib (TD-0903) Dose A, Nezulcitinib (TD-0903) Dose B
Drug
Lead sponsor
Theravance Biopharma
Industry
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated Dec 10, 2021 · Synced Oct 24, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Addressing Vaccine Hesitancy and Increasing COVID-19 Vaccine Uptake Among African American Young Adults in the South

NCT05490329
View directory record Official record
Conditions
COVID-19, Vaccine Uptake
Interventions
Tough Talks COVID
Behavioral
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 29 Years
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Mar 28, 2025 · Synced Oct 24, 2026, 9:03 AM EDT
Completed Phase 4 Interventional Results available

Do Angiotensin Receptor Blockers Mitigate Progression to Acute Respiratory Distress Syndrome With SARS-CoV-2 Infection

NCT04340557
View directory record Official record
Conditions
SARS-CoV Infection
Interventions
Losartan
Drug
Lead sponsor
Sharp HealthCare
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
3
States / cities
La Mesa, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated May 26, 2021 · Synced Oct 24, 2026, 9:03 AM EDT
Completed No phase listed Observational

eVusheld Assessment reaL wORld Effectiveness in the VA Health System

NCT05663957
View directory record Official record
Conditions
SARS-CoV-2, COVID-19
Interventions
Evusheld
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
12 Years and older
Enrollment
5,814 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 3, 2024 · Synced Oct 24, 2026, 9:03 AM EDT
Completed No phase listed Observational

COVID SAFE: COVID-19 Screening Assessment for Exposure

NCT04508777
View directory record Official record
Conditions
Covid19
Interventions
Saliva-based testing
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
1,759 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Oct 24, 2026, 9:03 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 and Obstetric Transmission

NCT04418557
View directory record Official record
Conditions
COVID, Pregnancy Complications
Interventions
RT-PCR and antibody testing
Diagnostic Test
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 22, 2022 · Synced Oct 24, 2026, 9:03 AM EDT
Not listed Not applicable Interventional

Quantifying Viral Load in Respiratory Particles That Are Generated by Children and Adults With COVID-19 Infection

NCT05195229
View directory record Official record
Conditions
COVID-19
Interventions
COVID-19 Aerosol Collection
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 15, 2022 · Synced Oct 24, 2026, 9:03 AM EDT
Completed Phase 2 Interventional Results available

Duvelisib to Combat COVID-19

NCT04372602
View directory record Official record
Conditions
COVID-19
Interventions
Duvelisib, Peripheral blood draw, Placebo
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 6, 2023 · Synced Oct 24, 2026, 9:03 AM EDT