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ClinicalTrials.gov public records Last synced Oct 27, 2026, 5:10 PM EDT

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Showing 721–744 of 1,207 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: COVID Clear all
Completed Phase 3 Interventional Results available

Study to Assess Efficacy and Safety of Inhaled Interferon-β Therapy for COVID-19

NCT04732949
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2, COVID-19
Interventions
SNG001, Placebo
Drug
Lead sponsor
Synairgen Research Ltd.
Industry
Eligibility
18 Years and older
Enrollment
623 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
6
States / cities
Tucson, Arizona • St. Petersburg, Florida • Detroit, Michigan + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Oct 27, 2026, 5:10 PM EDT
Terminated Phase 2 Interventional Results available

Open Label Extension of Efgartigimod in Adults With Post-COVID-19 POTS

NCT05918978
View directory record Official record
Conditions
Post-COVID Postural Orthostatic Tachycardia Syndrome Postural Orthostatic Tachycardia Syndrome
Interventions
Efgartigimod
Drug
Lead sponsor
argenx
Industry
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
9
States / cities
La Jolla, California • Palo Alto, California • Glenview, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 23, 2025 · Synced Oct 27, 2026, 5:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Pharmacokinetics, Safety and Tolerability of ALG-097558 in Subjects With Renal Impairment and in Healthy Subjects With Normal Renal Function

NCT06698549
View directory record Official record
Conditions
COVID 19
Interventions
ALG-097558
Drug
Lead sponsor
Aligos Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
3
States / cities
Miami, Florida • Orlando, Florida • Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Oct 27, 2026, 5:10 PM EDT
Completed Not applicable Interventional Results available

Creating a Sustainable Infrastructure for SARS-CoV-2 Testing (COVID-19) at Syringe Exchange Programs

NCT04852848
View directory record Official record
Conditions
Health Behavior
Interventions
Connect2Test Intervention
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
18 Years and older
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 6, 2023 · Synced Oct 27, 2026, 5:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Follow On Community Testing Study To Evaluate The Performance of the Lucira COVID-19 All-In-One Test Kit

NCT04720235
View directory record Official record
Conditions
Covid19, Corona Virus Infection
Interventions
Lucira COVID-19 All-In-One test kit
Device
Lead sponsor
Lucira Health Inc
Industry
Eligibility
14 Years to 75 Years
Enrollment
304 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Los Gatos, California
Source: ClinicalTrials.gov public record
Updated Apr 12, 2021 · Synced Oct 27, 2026, 5:10 PM EDT
Completed Phase 3 Interventional

ACTIV-3: Therapeutics for Inpatients With COVID-19

NCT04501978
View directory record Official record
Conditions
Covid19
Interventions
LY3819253, Placebo, Remdesivir, VIR-7831, BRII-196/BRII-198, AZD7442, MP0420, PF-07304814
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
2,753 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
98
States / cities
Tucson, Arizona • Chula Vista, California • Fresno, California + 64 more
Source: ClinicalTrials.gov public record
Updated Aug 25, 2023 · Synced Oct 27, 2026, 5:10 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate Safety and Immunogenicity of mRNA-1273 Vaccine to Prevent COVID-19 in Adult Organ Transplant Recipients and in Healthy Adult Participants

NCT04860297
View directory record Official record
Conditions
SARS-CoV-2
Interventions
mRNA-1273
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
15
States / cities
Mesa, Arizona • San Diego, California • New Haven, Connecticut + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 18, 2024 · Synced Oct 27, 2026, 5:10 PM EDT
Completed Phase 3 Interventional Results available

BRII-196/BRII-198 for Inpatients With COVID-19 (An ACTIV-3/TICO Treatment Trial)

NCT05780424
View directory record Official record
Conditions
COVID-19
Interventions
BRII-196, BRII-198, Placebo, Remdesivir
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
353 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
76
States / cities
Tucson, Arizona • Fresno, California • Loma Linda, California + 52 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2024 · Synced Oct 27, 2026, 5:10 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Characterizing SARS-CoV-2-specific Immunity in Individuals Who Have Recovered From COVID-19

NCT04403880
View directory record Official record
Conditions
SARS-CoV-2, COVID-19
Interventions
Sample collection
Other
Lead sponsor
HIV Vaccine Trials Network
Network
Eligibility
18 Years and older
Enrollment
760 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
21
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Oct 27, 2026, 5:10 PM EDT
Completed No phase listed Observational

Vaccine-generated Immunity in Ocrelizumab-treated Patients: Longitudinal Assessments (VIOLA)

NCT04843774
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
SARS-COV-2 mRNA Vaccine
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
2
States / cities
Denver, Colorado • New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Oct 27, 2026, 5:10 PM EDT
Not yet recruiting Phase 1 Interventional

Phase I Open-Label Safety Trial of Pembrolizumab for Neurological Post- Acute Sequelae of SARS-CoV-2 (PD1-PASC I)

NCT07388550
View directory record Official record
Conditions
Post-Acute COVID-19 Syndrome
Interventions
Keytruda
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 110 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 27, 2026 · Synced Oct 27, 2026, 5:10 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Surgical Telemedicine in the COVID-19 Pandemic Era

NCT04376710
View directory record Official record
Conditions
COVID, Surgery
Interventions
Completion of pre-pandemic survey, Completion of survey after peak of pandemic, Completion of post telemedicine encounter survey
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
31 Days to 18 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 28, 2020 · Synced Oct 27, 2026, 5:10 PM EDT
Completed No phase listed Observational

Neurologic Manifestations of COVID 19 in Children

NCT04379089
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 27, 2023 · Synced Oct 27, 2026, 5:10 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Novel Experimental COVID-19 Therapies Affecting Host Response

NCT04924660
View directory record Official record
Conditions
COVID-19, SARS-CoV-2 Infection, Coronavirus Infection
Interventions
TXA127, TRV027, Placebo, Fostamatinib
Drug
Lead sponsor
Sean Collins
Other
Eligibility
18 Years and older
Enrollment
1,060 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
51
States / cities
Birmingham, Alabama • Chandler, Arizona • Los Angeles, California + 40 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2025 · Synced Oct 27, 2026, 5:10 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Conversational Agent Vaccine Promotion RCT

NCT04884750
View directory record Official record
Conditions
Pandemics
Interventions
ECA-ACE Vaccination Promotion Intervention
Behavioral
Lead sponsor
Northeastern University
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 22, 2023 · Synced Oct 27, 2026, 5:10 PM EDT
Completed Phase 2 Interventional Results available

Dipyridamole to Prevent Coronavirus Exacerbation of Respiratory Status (DICER) in COVID-19

NCT04391179
View directory record Official record
Conditions
COVID, Corona Virus Infection, Covid-19, SARS-CoV-2 Infection
Interventions
Dipyridamole 100 Milligram(mg), Placebo oral tablet
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 24, 2022 · Synced Oct 27, 2026, 5:10 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Role of Children in Transmission of COVID-19 to Immunocompromised Patients

NCT04407546
View directory record Official record
Conditions
Immunosuppression
Interventions
Not listed
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
Not listed
Enrollment
109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 24, 2023 · Synced Oct 27, 2026, 5:10 PM EDT
Not listed Phase 1Phase 2 Interventional

Tolerability and Efficacy of RJX in Patients With COVID-19

NCT04708340
View directory record Official record
Conditions
COVID-19, Acute Respiratory Distress Syndrome, SARS-CoV-2, Hypoxemia
Interventions
Rejuveinix (RJX) Active Comparator, Placebo Comparator
Drug
Lead sponsor
Reven Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
3
States / cities
Houston, Texas • New Braunfels, Texas
Source: ClinicalTrials.gov public record
Updated Mar 15, 2022 · Synced Oct 27, 2026, 5:10 PM EDT
Active, not recruiting Not applicable Interventional

Comparison of Nasopharyngeal Swab v. Nasopharyngeal Saline Wash or Saliva Collection in Testing for Respiratory Viruses

NCT05864118
View directory record Official record
Conditions
Respiratory Tract Infections
Interventions
Respiratory pathogen panel PCR test, COVID-19 antibody test
Diagnostic Test
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Apr 17, 2026 · Synced Oct 27, 2026, 5:10 PM 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 27, 2026, 5:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

COVID-19 Molecular OTC At Home Test

NCT05704803
View directory record Official record
Conditions
COVID-19 Pandemic
Interventions
Diagnostic Test: IN Vitro
Diagnostic Test
Lead sponsor
3EO Health
Industry
Eligibility
2 Years and older
Enrollment
202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
4
States / cities
Miami, Florida • Humble, Texas • Kingwood, Texas
Source: ClinicalTrials.gov public record
Updated Sep 28, 2023 · Synced Oct 27, 2026, 5:10 PM EDT
Completed No phase listed Observational

Yale COVID-19 Recovery Study

NCT04895189
View directory record Official record
Conditions
Covid19 Sequelae
Interventions
No intervention
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Oct 27, 2026, 5:10 PM EDT
Completed No phase listed Observational

A Study to Understand How the Use of Paxlovid Affected Healthcare Use in People With Pre-existing Conditions.

NCT07090486
View directory record Official record
Conditions
COVID-19
Interventions
nirmatrelvir-ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
14,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Oct 27, 2026, 5:10 PM EDT
Completed Not applicable Interventional Results available

Phase I/II Safety, Dose Finding & Antiviral Activity of RD-X19 in Mild/Moderate Outpatient COVID-19

NCT04662671
View directory record Official record
Conditions
COVID19
Interventions
RD-X19
Device
Lead sponsor
EmitBio Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Miami, Florida • College Station, Texas
Source: ClinicalTrials.gov public record
Updated Sep 8, 2022 · Synced Oct 27, 2026, 5:10 PM EDT