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ClinicalTrials.gov public records Last synced Oct 30, 2026, 6:39 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 961–984 of 1,208 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: COVID Clear all
Recruiting No phase listed Observational

Long-Term Study of COVID-19 Infection and Long COVID

NCT07781501
View directory record Official record
Conditions
SARS CoV-2 Post-Acute Sequelae
Interventions
This study is observational. Only patients who have previously tested positive for SARS-CoV-2 infection or are experiencing ongoing symptoms.
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 75 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 30, 2026, 6:39 AM EDT
Not listed Not applicable Interventional

Vielight RX Plus for the Treatment of COVID-19 Respiratory Symptoms

NCT04418505
View directory record Official record
Conditions
COVID-19
Interventions
Vielight RX Plus
Device
Lead sponsor
Vielight Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
295 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Port Orange, Florida
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced Oct 30, 2026, 6:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Transcranial Magnetic Stimulation for Apathy in Mild Cognitive Impairment

NCT03590327
View directory record Official record
Conditions
Apathy, Mild Cognitive Impairment, Transcranial Magnetic Stimulation, Loneliness, COVID, Neuropsychiatric Symptoms
Interventions
Transcranial Magnetic Stimulation
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
55 Years and older
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 30, 2026, 6:39 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

KIDney Injury in Times of COVID-19 (KIDCOV)

NCT04705766
View directory record Official record
Conditions
SARS-CoV Infection, Covid19, Corona Virus Infection, Acute Kidney Injury, Kidney Injury
Interventions
Urine Collection
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
3
States / cities
San Francisco, California • Chicago, Illinois • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 30, 2026, 6:39 AM EDT
Withdrawn Phase 3 Interventional Accepts healthy volunteers

Evaluation of the Efficacy of Xylitol Nasal Spray Against SARS-CoV-2

NCT04610801
View directory record Official record
Conditions
Covid19
Interventions
Nasal Spray
Drug
Lead sponsor
Larkin Community Hospital
Other
Eligibility
18 Years to 90 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Oct 30, 2026, 6:39 AM EDT
Completed No phase listed Observational

ScreenNC, a Study to Determine the Number of Asymptomatic Individuals Who Have Antibodies to the Virus That Causes COVID-19

NCT04367740
View directory record Official record
Conditions
Asymptomatic Condition, Infection Viral, Coronavirus Infections, Severe Acute Respiratory Syndrome Coronavirus 2, Coronaviridae Infections, RNA Virus Infections, Virus Diseases, Communicable Disease
Interventions
To assess for development of IgG antibodies against SARS-CoV2
Diagnostic Test
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
6,313 participants
Timeline
2020 – 2022
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 9, 2023 · Synced Oct 30, 2026, 6:39 AM EDT
Recruiting Not applicable Interventional

Heat thErapy And mobiLity in COVID-19 Survivors

NCT06928116
View directory record Official record
Conditions
Long COVID
Interventions
Heat therapy, Sham Control, Walking
Behavioral
Lead sponsor
University of Nebraska
Other
Eligibility
50 Years to 90 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 30, 2026, 6:39 AM EDT
Terminated No phase listed Observational

Efficacy of COVID-19 Vaccination in Patients With Multiple Sclerosis Treated With Immune Modulating Medication

NCT04796584
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Analysis of cell-mediated and antibody-mediated immunity to SARS-CoV-2 virus
Other
Lead sponsor
Providence Health & Services
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 3, 2023 · Synced Oct 30, 2026, 6:39 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Delayed Heterologous SARS-CoV-2 Vaccine Dosing (Boost) After Receipt of EUA Vaccines

NCT04889209
View directory record Official record
Conditions
COVID-19
Interventions
Ad26.COV2.S, BNT162b2, mRNA-1273, mRNA-1273.211, mRNA-1273.222, SARS-CoV-2 rS/M1
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
867 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
10
States / cities
Decatur, Georgia • Baltimore, Maryland • New York, New York + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2025 · Synced Oct 30, 2026, 6:39 AM EDT
Completed Phase 2 Interventional Results available

Effect of Lithium Therapy on Long COVID Symptoms

NCT05618587
View directory record Official record
Conditions
Long COVID
Interventions
Lithium, Placebo
Drug
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 80 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Williamsville, New York
Source: ClinicalTrials.gov public record
Updated Mar 5, 2025 · Synced Oct 30, 2026, 6:39 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A CHW Intervention to Identify and Decrease Barriers to COVID 19 Testing & Vaccination

NCT05473936
View directory record Official record
Conditions
Vaccine Hesitancy, COVID-19 Testing, Community Health Workers
Interventions
Community Health Worker led curriculum
Behavioral
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
16 Years and older
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Oct 30, 2026, 6:39 AM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Changes in Cellular Immune Profile During COVID-19 Infection

NCT04470999
View directory record Official record
Conditions
Covid19, SARS-CoV-2
Interventions
Leukapheresis
Other
Lead sponsor
Serhat Gumrukcu, MD PhD
Other
Eligibility
18 Years to 60 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 24, 2022 · Synced Oct 30, 2026, 6:39 AM EDT
Completed Not applicable Interventional

A Pilot rTMS Trial for Neuropsychiatric Symptoms of Long-COVID

NCT06586398
View directory record Official record
Conditions
Long Covid-19, PASC Post Acute Sequelae of COVID 19, Brain Fog, Fatigue
Interventions
rTMS
Device
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 30, 2026, 6:39 AM EDT
Enrolling by invitation Not applicable Interventional

Personalized Ventilator Settings for Patients on ECMO

NCT07673250
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome (ARDS), Extracorporeal Membrane Oxygenation, Respiratory Failure Patients Treated With ECMO, Respiratory Failure, ICU, Ventilator Induced Lung Injury
Interventions
Personalized Positive End-Expiratory Pressure (PEEP)
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 30, 2026, 6:39 AM EDT
Completed Phase 3 Interventional Results available

Trial to Evaluate the Efficacy and Safety of Nitazoxanide (NTZ) for Pre- and Post Exposure Prophylaxis of COVID-19 and Other Viral Respiratory Illnesses (VRI) in Healthcare Workers and Others at Increased Risk of SARS-CoV-2 Infection

NCT04359680
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
18 Years to 120 Years
Enrollment
1,407 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
26
States / cities
Hot Springs, Arkansas • Huntington Beach, California • Long Beach, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Oct 30, 2026, 6:39 AM EDT
Completed Phase 3 Interventional Results available

ACTIV-6: COVID-19 Study of Repurposed Medications - Arm G (Metformin)

NCT06042855
View directory record Official record
Conditions
Covid19
Interventions
Placebo, Metformin
Other · Drug
Lead sponsor
Susanna Naggie, MD
Other
Eligibility
30 Years and older
Enrollment
3,214 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
110
States / cities
Chandler, Arizona • Gilbert, Arizona • Mesa, Arizona + 96 more
Source: ClinicalTrials.gov public record
Updated Nov 18, 2025 · Synced Oct 30, 2026, 6:39 AM EDT
Completed No phase listed Observational

Immunogenicity and Safety of Commercially Available Vaccines Against SARS-CoV-2 (COVID-19) in Patients With Hematologic Malignancies

NCT04748185
View directory record Official record
Conditions
Monoclonal B-Cell Lymphocytosis, Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma, B-cell Non Hodgkin Lymphoma, Hodgkin Lymphoma
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
358 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Oct 30, 2026, 6:39 AM EDT
Completed No phase listed Observational

Improving Brain Stimulation Through Imaging

NCT03851380
View directory record Official record
Conditions
Depression, Depressive Disorder, Treatment-Resistant, COVID Stress, PTSD - Post Traumatic Stress Disorder
Interventions
Psychological / Functional Assessment, Structural and Functional MRI, Transcranial Magnetic Brain Stimulation and MR Image Guidance, Transcranial Electrical Stimulation (tES)
Behavioral · Other · Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 89 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 30, 2026, 6:39 AM EDT
Completed Not applicable Interventional

Mindfulness in Post Acute Sequelae of SARS-CoV-2 Infection (PASC) Dysautonomia

NCT05566379
View directory record Official record
Conditions
Long COVID, Dysautonomia
Interventions
Mindfulness - Mindful Awareness Practices ( MAPs)
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 54 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2024 · Synced Oct 30, 2026, 6:39 AM EDT
Active, not recruiting No phase listed Observational

A Clinical Observational Study of SARS-CoV-2 Specific CD8 T-Cell Responses to COVID-19 Vaccines in Humans

NCT04852289
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
18 Years to 99 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Oct 30, 2026, 6:39 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 30, 2026, 6:39 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Opaganib, a Sphingosine Kinase-2 (SK2) Inhibitor in COVID-19 Pneumonia

NCT04467840
View directory record Official record
Conditions
COVID-19, Lung Infection
Interventions
Opaganib, Placebo
Drug
Lead sponsor
RedHill Biopharma Limited
Industry
Eligibility
18 Years to 80 Years
Enrollment
475 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 31, 2025 · Synced Oct 30, 2026, 6:39 AM EDT
Completed No phase listed Observational

COVID-19 Brain Injury

NCT04496076
View directory record Official record
Conditions
Sars-CoV2, Severe Neurologic Injury, Ischemic Stroke, Hemorrhagic Stroke, Intracerebral Hemorrhage, Subarachnoid Hemorrhage, Traumatic Brain Injury, Status Epilepticus
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 16, 2021 · Synced Oct 30, 2026, 6:39 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Impact of Botox Treatment Into the Upper One Third of the Face an Area on Mood and Self -Appearance Satisfaction

NCT04439825
View directory record Official record
Conditions
Mood
Interventions
Botulinum Neurotoxin, Placebo
Drug
Lead sponsor
DeNova Research
Other
Eligibility
10 Years to 75 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 15, 2021 · Synced Oct 30, 2026, 6:39 AM EDT