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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Post COVID-19 Clear all
Completed Phase 2 Interventional

Pilot Study Into LDN and NAD+ for Treatment of Patients With Post-COVID-19 Syndrome

NCT04604704
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 24, 2023 · Synced Sep 17, 2026, 5:16 AM EDT
Completed Phase 2 Interventional

RECOVER-AUTONOMIC: Platform Protocol, Appendix A (IVIG)

NCT06305793
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 17, 2026, 5:16 AM EDT
Completed Not applicable Interventional

Long COVID-19 Syndrome Lifestyle Intervention Study

NCT05836402
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Sep 17, 2026, 5:16 AM EDT
Recruiting Phase 2 Interventional

A Study to Examine Anktiva for the Treatment of COVID-19.

NCT07123727
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 17, 2026, 5:16 AM EDT
Completed Not applicable Interventional

Computer Cognitive Training for Post-acute COVID-19 Syndrome

NCT05338749
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 28, 2024 · Synced Sep 17, 2026, 5:16 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Covid-19 Long Haul Preventative and Health Promotion Care Clinical Trial Acceleration Program.

NCT06441955
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 26, 2024 · Synced Sep 17, 2026, 5:16 AM EDT
Recruiting Not applicable Interventional

Mind Body Intervention for Long COVID-19

NCT06045338
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Sep 17, 2026, 5:16 AM EDT
Recruiting Phase 3 Interventional

Randomized Double-Blind Placebo-Controlled Trial EValuating Baricitinib on PERSistent NEurologic and Cardiopulmonary Symptoms of Long COVID

NCT06631287
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Sep 17, 2026, 5:16 AM EDT
Completed No phase listed Observational

COVID-19 Antibody Levels After Vaccines

NCT04944134
View directory record Official record
Conditions
Vaccine Preventable Disease
Interventions
COVID-19 Vaccination
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
71 participants
Timeline
2021 – 2022
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 31, 2022 · Synced Sep 17, 2026, 5:16 AM EDT
Recruiting Not applicable Interventional

Osteopathic Manipulative Therapy Effects on Post-Acute Sequelae of COVID-19 (PASC) or Long COVID

NCT06883513
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Sep 17, 2026, 5:16 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 19, 2026 · Synced Sep 17, 2026, 5:16 AM EDT
Available No phase listed Expanded access

Expanded Access Use of Human Umbilical Cord Blood (REGENECYTE) Infusion in Patients With Chronic Fatigue of Post-COVID Condition

NCT07332338
View directory record Official record
Conditions
Post-COVID-19 Condition, Post-COVID Condition, Post-COVID Syndrome, Long COVID, Chronic Fatigue, Chronic Fatigue Symptoms, Fatigue Post Viral
Interventions
REGENECYTE®
Biological
Lead sponsor
StemCyte, Inc.
Industry
Eligibility
18 Years and older
U.S. locations
2
States / cities
Miami, Florida • Miami Lakes, Florida
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 17, 2026, 5:16 AM EDT
Completed Phase 3 Interventional Results available

Phase III Double-blind, Placebo-controlled Study of AZD7442 for Post- Exposure Prophylaxis of COVID-19 in Adults

NCT04625972
View directory record Official record
Conditions
COVID-19
Interventions
AZD7442, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 120 Years
Enrollment
1,131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
50
States / cities
Guntersville, Alabama • Tempe, Arizona • Little Rock, Arkansas + 42 more
Source: ClinicalTrials.gov public record
Updated Nov 20, 2023 · Synced Sep 17, 2026, 5:16 AM EDT
Completed Not applicable Interventional Results available

Vagus Nerve Stimulation as Treatment for Long Covid

NCT05608629
View directory record Official record
Conditions
Long COVID, Chronic Fatigue Syndrome
Interventions
Transcutaneous Non-Invasive Vagus Nerve Stimulation
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
Up to 70 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 7, 2024 · Synced Sep 17, 2026, 5:16 AM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Efficacy and Safety of NVX-CoV2705

NCT07086222
View directory record Official record
Conditions
COVID-19, Sars-CoV-2 Infection
Interventions
NVX-CoV2705, Placebo
Biological
Lead sponsor
Novavax
Industry
Eligibility
50 Years to 65 Years
Enrollment
6,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
99
States / cities
Athens, Alabama • Birmingham, Alabama • Gadsden, Alabama + 88 more
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 17, 2026, 5:16 AM EDT
Completed Not applicable Interventional Results available

Psychological Symptoms and Families of COVID-19 Patients

NCT04501445
View directory record Official record
Conditions
Family Members, Post Intensive Care Unit Syndrome, Post Traumatic Stress Disorder
Interventions
Written Summary of Rounds
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 26, 2023 · Synced Sep 17, 2026, 5:16 AM EDT
Terminated Phase 4 Interventional Results available

Addressing Cognitive Fog in Long-COVID-19 Patients

NCT05597722
View directory record Official record
Conditions
Cognitive Impairment, Long COVID
Interventions
Digital cognitive behavioral intervention-RxWell, Amphetamine-Dextroamphetamine
Behavioral · Drug
Lead sponsor
Eva Szigethy
Other
Eligibility
21 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 21, 2024 · Synced Sep 17, 2026, 5:16 AM EDT
Completed Not applicable Interventional Results available

Cognitive Rehabilitation in Post-COVID-19 Syndrome

NCT06136871
View directory record Official record
Conditions
Post-COVID-19 Syndrome
Interventions
CO-OP Procedures, Inactive Control Group
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 60 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Sep 17, 2026, 5:16 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Professional Peer Resilience Initiative

NCT04396600
View directory record Official record
Conditions
Stress, Stress Disorder, Stress, Psychological, Trauma, Psychological, Anxiety, Anxiety State, Post Traumatic Stress Disorder, Secondary Traumatic Stress, Professional Quality of Life, Stress Related Disorder, Stress Reaction, Stress Risk, Mental Resilience, Emotional Resilience
Interventions
MinnRAP Peer Support Program
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Sep 17, 2026, 5:16 AM EDT
Completed No phase listed Observational

COVID-19 Respiratory Outcomes Registry

NCT05074875
View directory record Official record
Conditions
Covid19
Interventions
Questionnaires and Patient Reported Outcomes (PROs), Nasal Swab COVID-19 reverse transcription polymerase chain reaction test (RT-PCR), Blood Samples for Biomarkers, High Resolution Computed Tomography, Physical Exam and Vital Signs, Medical Research Council Sum Score, Hand Grip Strength, Spirometry, Diffusing Capacity of Carbon Monoxide, 6 Minute Walk Test, Sit to Stand (STS) Measurement
Other · Diagnostic Test · Genetic
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
37 participants
Timeline
2021 – 2023
U.S. locations
4
States / cities
St Louis, Missouri • New York, New York • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 17, 2026, 5:16 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Hydroxychloroquine as Post-Exposure Prophylaxis Against COVID-19 Infection

NCT04372017
View directory record Official record
Conditions
COVID-19, SARS-CoV 2
Interventions
Hydroxychloroquine, Vitamin D
Drug · Dietary Supplement
Lead sponsor
Sanford Health
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Dec 9, 2021 · Synced Sep 17, 2026, 5:16 AM EDT
Completed Phase 2 Interventional Results available

A Study to Learn About a Repeat 5-Day Treatment With the Study Medicines (Called Nirmatrelvir/Ritonavir) in People 12 Years Old or Older With Return of COVID-19 Symptoms and SARS-CoV-2 Positivity After Finishing Treatment With Nirmatrelvir/Ritonavir

NCT05567952
View directory record Official record
Conditions
COVID-19
Interventions
nirmatrelvir, ritonavir, placebo for nirmatrelvir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
436 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
67
States / cities
Mesa, Arizona • Phoenix, Arizona • Surprise, Arizona + 47 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2024 · Synced Sep 17, 2026, 5:16 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Pediatric COVID Outcomes Study (PECOS)

NCT04830852
View directory record Official record
Conditions
Covid19, MIS-C Associated with COVID-19, MIS-C Multisystem Inflammatory Syndrome in Children, SARS-CoV2 Infection
Interventions
Not listed
Lead sponsor
Children's National Research Institute
Other
Eligibility
0 Years to 21 Years
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 11, 2025 · Synced Sep 17, 2026, 5:16 AM EDT
Recruiting Not applicable Interventional

Acupuncture and Chinese Herbal Medicine for Long COVID

NCT07285707
View directory record Official record
Conditions
Long COVID
Interventions
Acupuncture
Procedure
Lead sponsor
Southern California University of Health Sciences
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Whittier, California
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Sep 17, 2026, 5:16 AM EDT