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ClinicalTrials.gov public records Last synced Oct 21, 2026, 6:13 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 187 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Pathogenesis Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Natural History, Pathogenesis and Outcome of Melorheostosis A Rare Osteosclerotic Disease

NCT02504879
View directory record Official record
Conditions
Rheumatic Disease
Interventions
Not listed
Lead sponsor
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
NIH
Eligibility
18 Years to 90 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Natural History of Individuals With Immune System Problems That Lead to Fungal Infections

NCT01386437
View directory record Official record
Conditions
Chronic Mucocutaneous Candidiasis, Invasive Aspergillosis, CARD9, APECED
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Day to 99 Years
Enrollment
1,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Completed No phase listed Observational

Pathogenesis of Atypical Femur Fractures on Long Term Bisphosphonate Therapy

NCT02155595
View directory record Official record
Conditions
Osteoporosis, Atypical Femoral Fractures, Prodromal Bone Deterioration
Interventions
500 without BP treatment, 500 with BP treatment
Other
Lead sponsor
Henry Ford Health System
Other
Eligibility
50 Years and older · Female only
Enrollment
738 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 29, 2019 · Synced Oct 21, 2026, 6:13 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Role of Microglial Activation and Norepinephrine Transporter Abnormalities in Pathogenesis of MS-related Fatigue

NCT04144257
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
[F-18]PBR06, [C-11]Methylreboxetine
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 60 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

The Expression of PTEN Protein and mRNA in Malignant Cells of Chronic Myelomonocytic Leukemia

NCT01010256
View directory record Official record
Conditions
Chronic Myelomonocytic Leukemia
Interventions
Not listed
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2019
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Feb 7, 2020 · Synced Oct 21, 2026, 6:13 AM EDT
Completed No phase listed Observational

Lung HIV Disease in a Large Cohort-Pitt

NCT01326572
View directory record Official record
Conditions
Pulmonary Disease, HIV, Emphysema
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 72 Years · Male only
Enrollment
189 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Oct 21, 2026, 6:13 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Alpelisib in Healthy Volunteers

NCT05733455
View directory record Official record
Conditions
Insulin Resistance, Hyperinsulinemia, Dyslipidemias
Interventions
Alpelisib 150 mg [Piqray], 2 overencapsulated tablets (total: 300 mg), Placebo (microcrystalline cellulose), 2 capsules, FreeStyle Libre Pro, Oral glucose tolerance test (OGTT) with Trutol glucose beverage, BOOST Plus nutritional beverage
Drug · Device · Diagnostic Test + 1 more
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 21, 2023 · Synced Oct 21, 2026, 6:13 AM EDT
Not listed Phase 3 Interventional

Independent Studies of Dextromethorphan and of Donepezil Hydrochloride for Rett Syndrome

NCT00069550
View directory record Official record
Conditions
Rett Syndrome
Interventions
dextromethorphan, donepezil hydrochloride
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
1 Year to 15 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 21, 2026, 6:13 AM EDT
Completed No phase listed Observational

Natural History and Pathogenesis of Alopecia in Children and Adults

NCT05502796
View directory record Official record
Conditions
Hair Loss
Interventions
Not listed
Lead sponsor
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
NIH
Eligibility
2 Years to 120 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Closed Eye Neutrophils in Dry Eye Disease

NCT03332342
View directory record Official record
Conditions
Dry Eye, Ocular Inflammation
Interventions
Eye wash
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 17, 2019 · Synced Oct 21, 2026, 6:13 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Natural History Study of CADASIL

NCT05072483
View directory record Official record
Conditions
Cardiovascular Disease, Arterial Stiffness, Germline Mutation in the NOTCH 3 Gene, Pathogenesis of CADASIL, Clinical Phenotype of CADASIL
Interventions
MRI
Device
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2041
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Completed No phase listed Observational

Genetic and Environmental Characteristics of Primary Pulmonary Hypertension

NCT00091546
View directory record Official record
Conditions
Lung Diseases, Hypertension, Pulmonary
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
Up to 100 Years
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 2, 2016 · Synced Oct 21, 2026, 6:13 AM EDT
Completed Phase 4 Interventional Results available

Calcitonin Gene-related Peptide Levels in Chronic Migraine

NCT01071096
View directory record Official record
Conditions
Chronic Migraine
Interventions
OnabotulinumtoxinA, Saline
Drug
Lead sponsor
Cady, Roger, M.D.
Individual
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
2
States / cities
Springfield, Missouri • Plainview, New York
Source: ClinicalTrials.gov public record
Updated Feb 12, 2013 · Synced Oct 21, 2026, 6:13 AM EDT
Recruiting No phase listed Observational

Study of the Disease Process of Lymphangioleiomyomatosis

NCT00001465
View directory record Official record
Conditions
Lung Disease, Pneumothorax, Tuberous Sclerosis, Lymphangioleiomyomatosis
Interventions
Toshibia Aquilion One CT
Device
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
16 Years to 100 Years
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1995
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Completed No phase listed Observational

A Study of Patients With AIDS Syndrome

NCT00001120
View directory record Official record
Conditions
Sarcoma, Kaposi, Lymphoma, Non-Hodgkin, HIV Infections, Lymphoma, AIDS-Related
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
23
States / cities
Menlo Park, California • San Francisco, California • San Rafael, California + 15 more
Source: ClinicalTrials.gov public record
Updated Sep 12, 2008 · Synced Oct 21, 2026, 6:13 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Etiology, Pathogenesis, and Natural History of Idiopathic CD4+ Lymphocytopenia

NCT00867269
View directory record Official record
Conditions
Idiopathic CD4+ Lymphocytopenia, Cryptococcal Meningitis, Warts
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
950 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Study of Systemic Lupus Erythematosus

NCT00001372
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
Not listed
Lead sponsor
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
NIH
Eligibility
3 Years to 120 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1994
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Pathogenesis of the Cardiometabolic Risk in Youth With Type 1 Diabetes

NCT04101045
View directory record Official record
Conditions
Type 1 Diabetes, De Novo Lipogenesis
Interventions
Oral Glucose Tolerance Test
Diagnostic Test
Lead sponsor
Yale University
Other
Eligibility
13 Years to 22 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 13, 2023 · Synced Oct 21, 2026, 6:13 AM EDT
Completed Not applicable Interventional

Prevention of Post-Traumatic Osteoarthritis (OA)

NCT00054821
View directory record Official record
Conditions
Osteoarthritis
Interventions
Ankle distraction permitting motion, Ankle distraction without motion
Procedure
Lead sponsor
Ned Amendola
Other
Eligibility
Up to 60 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2009
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 17, 2017 · Synced Oct 21, 2026, 6:13 AM EDT
Completed Not applicable Interventional

The Role of HIF-2a in the Pathogenesis of Reflux Esophagitis

NCT01733810
View directory record Official record
Conditions
Esophagitis, Reflux Esophagitis, Gastroesophageal Reflux Disease
Interventions
Cessation of Acid Suppressing Medications
Other
Lead sponsor
Dallas VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 21, 2026, 6:13 AM EDT
Completed Phase 2 Interventional

Janus Kinase Inhibition in Sarcoidosis

NCT05696795
View directory record Official record
Conditions
Sarcoidosis
Interventions
Abrocitinib 200 mg
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Insulin Secretion in Diabetes Before and After Glycemic Control

NCT00469833
View directory record Official record
Conditions
Diabetes, Hyperglycemia
Interventions
insulin glargine
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
30 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 15, 2015 · Synced Oct 21, 2026, 6:13 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Role of Genetic Factors in the Development of Lung Disease

NCT00001532
View directory record Official record
Conditions
Cystic Fibrosis, Pulmonary Fibrosis, Tuberous Sclerosis, Asthma, Pulmonary Sarcoidosis
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
2 Years to 90 Years
Enrollment
3,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1996
U.S. locations
2
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 21, 2026, 6:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Pathogenesis of Hepatitis C Virus Vertical Transmission

NCT01921400
View directory record Official record
Conditions
Hepatitis C, Infection Transmission, Maternal-Fetal
Interventions
Not listed
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 9, 2018 · Synced Oct 21, 2026, 6:13 AM EDT