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ClinicalTrials.gov public records Last synced Sep 10, 2026, 5:11 AM EDT

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Showing 1–24 of 150 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Acute Illness Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Functional Incremental Stepping in Place Test (F-IST) Validation

NCT06853236
View directory record Official record
Conditions
Intensive Care Medicine, Acute Care Medical
Interventions
Not listed
Lead sponsor
Kirby Mayer
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
2
States / cities
Boca Raton, Florida • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Phase 2Phase 3 Interventional Results available

EPIC-HR: Study of Oral PF-07321332/Ritonavir Compared With Placebo in Nonhospitalized High Risk Adults With COVID-19

NCT04960202
View directory record Official record
Conditions
COVID-19
Interventions
PF-07321332, Ritonavir, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
2,091 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
73
States / cities
Pelham, Alabama • Mesa, Arizona • Tucson, Arizona + 46 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Not applicable Interventional

Fully Remote, Telehealth-based Ketogenic Metabolic Therapy for Long COVID

NCT07745699
View directory record Official record
Conditions
Long COVID Fatigue
Interventions
Ketogenic Metabolic Therapy, Lifestyle Intervention
Other · Behavioral
Lead sponsor
National University of Natural Medicine
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Altitude Sickness Prevention With Ibuprofen Relative to Acetazolamide and Treatment Efficacy

NCT03154645
View directory record Official record
Conditions
Acute Mountain Sickness
Interventions
Ibuprofen, Acetazolamide
Drug
Lead sponsor
Grant S Lipman
Other
Eligibility
18 Years to 65 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Bishop, California
Source: ClinicalTrials.gov public record
Updated Nov 25, 2018 · Synced Sep 10, 2026, 5:11 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Efficacy of MEDI7510 in Older Adults

NCT02508194
View directory record Official record
Conditions
Respiratory Syncytial Virus
Interventions
MEDI7510, IIV, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
60 Years to 99 Years
Enrollment
1,900 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
30
States / cities
Sacramento, California • San Francisco, California • Aurora, Colorado + 27 more
Source: ClinicalTrials.gov public record
Updated Dec 25, 2017 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Physiological Effects of Acute and Ramp Simulated Altitude Exposure During Simulated Flight Tasks

NCT05867719
View directory record Official record
Conditions
Altitude Hypoxia
Interventions
Hypoxic breathing conditions
Other
Lead sponsor
University of Texas, El Paso
Other
Eligibility
18 Years to 40 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Phase 2 Interventional Results available

Intravenous L-Citrulline Influence on the Need for Invasive Mechanical Ventilation for Acute Hypoxemic Respiratory Failure in Patients With COVID-19

NCT04570384
View directory record Official record
Conditions
Acute Hypoxemic Respiratory Failure
Interventions
L-Citrulline, Placebo
Drug
Lead sponsor
Asklepion Pharmaceuticals, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Sep 10, 2026, 5:11 AM EDT
Withdrawn No phase listed Observational

BRAVO - Betrixaban Registry Using Real Time Observations in Acute Medical Illness to Assess Venous Thrombosis and Bleeding Outcomes

NCT03613402
View directory record Official record
Conditions
Venous Thromboses
Interventions
Not listed
Lead sponsor
Portola Pharmaceuticals
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 20, 2023 · Synced Sep 10, 2026, 5:11 AM EDT
Recruiting No phase listed Observational

The APS Phenotyping Study

NCT06521502
View directory record Official record
Conditions
ARDS, Sepsis, Pneumonia
Interventions
Blood collection, Urine Collection, Nasal, oral, and rectal swabs, Stool collection, Heat Moisture Exchange Filter collection, Tracheal Aspirate sample collection, Non-bronchoscopic bronchoalveolar lavage (NBBAL), Surveys, Short physical performance battery, Hand grip strength, CNS Vital Signs, Muscle Ultrasound, Muscle Strength, Spirometry, Lung Diffusion Testing (DLCO), Chest CT Scan
Other · Procedure · Radiation
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
4,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
20
States / cities
Fresno, California • Palo Alto, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Not applicable Interventional Results available

Urgent Care Management of Respiratory Illness Enabled With Novel Testing Pathway

NCT05467007
View directory record Official record
Conditions
Viral Infection, Acute Respiratory Infection, Upper Resp Tract Infection
Interventions
BioFire® Respiratory Panel 2.1-EZ
Diagnostic Test
Lead sponsor
Andrew Meltzer
Other
Eligibility
7 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Test the Safety of Combined Dosing With Aminophylline and Ambrisentan in Exercising Healthy Human Volunteers at Simulated High Altitude

NCT01794078
View directory record Official record
Conditions
Acute Mountain Sickness and Fatigue
Interventions
Aminophylline 400 mg, Ambrisentan 5 mg, Placebo
Drug · Other
Lead sponsor
Robert J Noveck, M.D.
Other
Eligibility
18 Years to 50 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 12, 2015 · Synced Sep 10, 2026, 5:11 AM EDT
Completed No phase listed Observational

Caregiver Support in the Coping of Patients Who Are Undergoing a Donor Bone Marrow Transplant

NCT00281814
View directory record Official record
Conditions
Chronic Myeloproliferative Disorders, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Diseases, Psychosocial Effects of Cancer and Its Treatment
Interventions
psychosocial assessment and care
Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2017
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 25, 2018 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Phase 4 Interventional Results available

Clinical Trial of Niagen to Examine Recovery in People With Persistent Cognitive and Physical Symptoms After COVID-19

NCT04809974
View directory record Official record
Conditions
Covid19, Sequelae of; Infection, Cognitive Symptom
Interventions
Niagen
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 4, 2025 · Synced Sep 10, 2026, 5:11 AM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Point-of-Care AI Assistance and Critical Care Outcomes: A Randomized Trial

NCT07293078
View directory record Official record
Conditions
Critical Illness, Sepsis, Acute Respiratory Failure (ARF), Multi-organ Failure, Acute Kidney Injury, Delirium Confusional State, Shock
Interventions
Point-of-care large language model decision support (ChatGPT-5)
Other
Lead sponsor
MetroWest Artificial Intelligence Research Workgroup
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Framingham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Sep 10, 2026, 5:11 AM EDT
Not yet recruiting Early Phase 1 Interventional

Effect of Protein, Mobility Therapy and Electric Stimulation on Recovery in Older ICU Survivors

NCT05326633
View directory record Official record
Conditions
Critical Illness, Sarcopenia, ICU Acquired Weakness
Interventions
MRP and High Protein Supplement (HPRO) and Neuromuscular Electric Stimulation (NMES)
Combination Product
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
60 Years to 99 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Efficacy of Prophylactic Treatment of Oral Prochlorperazine for Acute Mountain Sickness

NCT06310642
View directory record Official record
Conditions
AMS, Acute Mountain Sickness
Interventions
Immediate descent from altitude., Diphenhydramine, Prochlorperazine 10 mg
Other · Drug
Lead sponsor
CHRISTUS Health
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Corpus Christi, Texas
Source: ClinicalTrials.gov public record
Updated May 27, 2024 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Not applicable Interventional

Care Anywhere With Community Paramedics Program to Reduce Hospitalization

NCT05232799
View directory record Official record
Conditions
Acute Illness
Interventions
Care Anywhere with Community Paramedics program
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
Rochester, Minnesota • Barron, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced Sep 10, 2026, 5:11 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluation of the AudibleHealth Dx AI/ML-Based Dx SaMD Using FCV-SDS in the Diagnosis of COVID-19 Illness

NCT05175690
View directory record Official record
Conditions
COVID19
Interventions
Diagnostic Software as Medical Device
Diagnostic Test
Lead sponsor
AudibleHealth AI, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Sep 10, 2026, 5:11 AM EDT
Terminated Not applicable Interventional Results available

Restrictive Versus Liberal Rate of Extracorporeal Volume Removal Evaluation in Acute Kidney Injury

NCT05306964
View directory record Official record
Conditions
Acute Kidney Injury, Fluid Overload, Hypotension, Dialysis; Complications, Critical Illness
Interventions
Restrictive UFnet Rate Strategy, Liberal UFnet Rate Strategy
Procedure
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
2
States / cities
Rochester, Minnesota • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

High Altitude and Exogenous Carbohydrate Oxidation

NCT03851744
View directory record Official record
Conditions
Glucose Metabolism, High Altitude
Interventions
Sea Level, High Altitude
Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 39 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 1, 2021 · Synced Sep 10, 2026, 5:11 AM EDT
Terminated Not applicable Interventional Results available

Airway Pressure Release Ventilation in Acute Lung Injury

NCT00750204
View directory record Official record
Conditions
Acute Lung Injury, Acute Respiratory Distress Syndrome, Mechanical Ventilation
Interventions
APRV, Conventional MV
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 14, 2017 · Synced Sep 10, 2026, 5:11 AM EDT
Not yet recruiting Not applicable Interventional

Doppler Evaluation for Congestive Acute Kidney Injury in Critical Illness

NCT07291778
View directory record Official record
Conditions
Acute Kidney Injury, VExUS
Interventions
Fluid Management, No intervention
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 10, 2026, 5:11 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Acute Respiratory Infection Consortium

NCT01021098
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
17 Years to 55 Years
Enrollment
2,018 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2023
U.S. locations
5
States / cities
San Diego, California • Bethesda, Maryland • San Antonio, Texas + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 23, 2023 · Synced Sep 10, 2026, 5:11 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Assessing the Safety, Tolerability, Pharmacokinetics, and Immunogenicity of Repeated Subcutaneous Doses of Anti-Spike (S) SARS-CoV-2 Monoclonal Antibodies (REGN10933+REGN10987) in Adult Volunteers as Related to COVID-19

NCT04519437
View directory record Official record
Conditions
Healthy, Chronic Stable Illness
Interventions
REGN10933+REGN10987, Placebo
Drug
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
18 Years to 90 Years
Enrollment
974 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
7
States / cities
Tempe, Arizona • Rogers, Arkansas • Sacramento, California + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2022 · Synced Sep 10, 2026, 5:11 AM EDT