Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 17, 2026, 4:09 AM EDT

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

Showing 1–24 of 211 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Completed Phase 2 Interventional Results available

Nitrite Supplementation in Long COVID Patients

NCT05618574
Conditions
Long COVID, Cardiorespiratory Fitness
Interventions
140 ml per day of Beet-It nitrate beverage (James White Drinks Ltd., Ipswich, UK), 210 ml of nitrate-depleted placebo
Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Long COVID
Interventions
Lithium
Dietary Supplement
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Williamsville, New York
Conditions
Long Haul COVID-19, Post-Acute COVID-19 Syndrome, Anosmia, Olfaction Disorders
Interventions
Sodium Citrate, Normal Saline, Olfactory Training Kit - "The Olfactory Kit, by AdvancedRx"
Drug · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Long COVID, Post Acute Sequelae of COVID-19, Post-Acute COVID-19
Interventions
Ensitrelvir, Placebo
Drug · Other
Lead sponsor
Timothy Henrich
Other
Eligibility
18 Years to 69 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
San Francisco, California
Conditions
Tinnitus
Interventions
DMSO-based otic solution with betahistine, dexamethasone, and lidocaine, DMSO-based transdermal cream with levocarnitine and N-acetylcysteine
Drug
Lead sponsor
Leading Edge Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Ithaca, New York
Enrolling by invitation No phase listed Observational

Microbial and Cytokine Signatures in Long COVID Patients

NCT07074158
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
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
Huntington Memorial Hospital
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Pasadena, California
Conditions
Post-acute Sequelae of COVID-19, Long COVID
Interventions
Valacyclovir, Celecoxib, Paxlovid, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New York, New York
Conditions
COVID-19
Interventions
Omega-3 (EPA+DHA), Placebo
Drug
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years to 89 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Edison, New Jersey
Conditions
Sequelae of; Infection, Post Infection Glomerulonephritis, Post-Infectious Peripheral Neuralgia, Post-Infectious Disorder (Disorder), Post-Infectious Arthritis, Post-Infectious Polyneuritis, Post-Infectious Parkinsonism, Post-Infectious Hypothyroidism, Post Infectious Osteoarthritis, Anxiety Disorders, Depression, Depression, Anxiety, Depression, Bipolar, Insomnia, GERD, Gastro Esophageal Reflux, Hepatitis, Glomerulonephritis
Interventions
PurWet, FurFat, PurApo, PurPhl, PurClo, PurInf, Smoliv
Combination Product
Lead sponsor
All Natural Medicine Clinic, LLC
Other
Eligibility
Not listed
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Rockville, Maryland
Conditions
Post-acute Sequelae of SARS-CoV-2 Infection
Interventions
Exercise
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Conditions
Covid 19
Interventions
Targeted Wellness Formula C™ Sublingual Drops - 1200mg - 30 mL (Formula C)
Dietary Supplement
Lead sponsor
Endourage, LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Novato, California
Completed Phase 2 Interventional Results available

RECOVER-AUTONOMIC Platform Protocol

NCT06305780
Conditions
Long COVID, Long Covid19, Long Covid-19
Interventions
IVIG + Coordinated Care, IVIG Placebo + Coordinated Care, Ivabradine + Coordinated Care, Ivabradine Placebo + Coordinated Care, IVIG + Usual Care, IVIG Placebo + Usual Care, Ivabradine + Usual Care, Ivabradine Placebo + Usual Care
Drug
Lead sponsor
Kanecia Obie Zimmerman
Other
Eligibility
18 Years and older
Enrollment
381 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
50
States / cities
Opelika, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 45 more
Completed Phase 2 Interventional Results available

Stellate Ganglion Block for COVID-induced Parosmia

NCT06253806
Conditions
COVID-19-Induced Parosmia
Interventions
Stellate Ganglion Block, Placebo Sham Injection
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
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
Conditions
Covid19, Long COVID-19, Post-COVID-19 Syndrome
Interventions
Naltrexone, NAD+
Drug · Dietary Supplement
Lead sponsor
AgelessRx
Industry
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Long COVID, Long Coronavirus Disease 2019 (Covid19), Long Covid-19
Interventions
IVIG (intravenous immunoglobulin), IVIG Placebo, Coordinated Care, Usual Care
Drug · Behavioral
Lead sponsor
Kanecia Obie Zimmerman
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Long COVID-19 Syndrome
Interventions
Low carbohydrate diet intervention
Dietary Supplement
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Long COVID, Long COVID Syndrome, Long Covid 19
Interventions
Anktiva
Drug
Lead sponsor
ImmunityBio, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
El Segundo, California
Conditions
Corona Virus Infection, Cognitive Dysfunction
Interventions
Cognitive Training
Behavioral
Lead sponsor
Nova Southeastern University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Fort Lauderdale, Florida
Conditions
COVID-19, Long Haul
Interventions
Ritonavir-Boosted Nirmatrelvir (Paxlovid), Physiological Evaluation, Moderna COVID-19 Vaccine, Biopsychological, Behavioral (e.g., Psychotherapy, Lifestyle Counseling), Genetic (including gene transfer, stem cell and recombinant DNA), Multidisciplinary approach
Drug · Diagnostic Test · Biological + 3 more
Lead sponsor
Well- Konnect Healthcare Services and Research Firm
Network
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Long COVID, Post-Acute Sequelae of COVID-19, COVID Long-Haul
Interventions
Mind Body Intervention #1
Behavioral
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Long COVID, Sars-CoV-2 Infection, Coronavirus Infections, COVID-19
Interventions
Baricitinib, Placebo
Drug · Other
Lead sponsor
Wes Ely
Other
Eligibility
18 Years and older
Enrollment
550 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
17
States / cities
Tucson, Arizona • Los Angeles, California • San Francisco, California + 13 more
Conditions
Long-COVID, PASC, Long COVID Syndrome
Interventions
Osteopathic Manipulative Therapy Long-COVID protocol, Osteopathic Manipulative Therapy NOT Long-COVID treatment protocol
Other
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Louisville, Kentucky