Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Sep 29, 2026, 11:50 PM EDT

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

Showing 25–48 of 279 matching trials from the live ClinicalTrials.gov search.
Recruiting No phase listed Observational Accepts healthy volunteers

Chromosome 18 Clinical Research Center

NCT00227253
Conditions
Chromosome Aberrations, Growth Hormone Deficiency, Hypomyelination
Interventions
Determination of growth hormone status, Measurement of growth, thyroid and sex hormone levels, Behavior and neuropsychometric evaluations, Audiological and ear, nose and throat examination, Magnetic resonance imaging of the brain, Dysmorphology evaluation, Neurology examination, Dental evaluation, Speech pathology evaluation, Psychiatric evaluation, Orthopedic evaluation, Ophthalmologic evaluation, Gastrointestinal evaluation
Procedure
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
Not listed
Enrollment
4,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1993 – 2040
U.S. locations
2
States / cities
San Antonio, Texas
Conditions
Libido, Intimacy, Gastrointestinal Issues
Interventions
Reset, Stay Ready Fiber, Libido, Testosterone supplement
Dietary Supplement
Lead sponsor
906 CMVI Holdings
Industry
Eligibility
18 Years to 44 Years · Male only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Completed Not applicable Interventional Accepts healthy volunteers

Nutrition21 Study 1

NCT04828278
Conditions
Nutritional Supplementation
Interventions
Arginine, Placebo
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
College Station, Texas
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Clinical Efficacy of 10% Arginine Bicarbonate Prophylaxis Paste

NCT01072188
Conditions
Hypersensitivity
Interventions
Arginine/Calcium Carbonate, Nupro - Fluoride Free
Device
Lead sponsor
Colgate Palmolive
Industry
Eligibility
18 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Langhorne, Pennsylvania
Conditions
Septic Shock
Interventions
Angiotensin II, Vasopressin
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Albuquerque, New Mexico
Conditions
Refractory or Unexplained Chronic Cough
Interventions
NOC-110, Placebo
Drug · Other
Lead sponsor
Nocion Therapeutics
Industry
Eligibility
18 Years to 80 Years
Enrollment
455 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
68
States / cities
Foley, Alabama • Scottsdale, Arizona • Tempe, Arizona + 60 more
Conditions
Excessive Physical Exercise, Unspecified
Interventions
Arginine antioxidant supplements, Placebo
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Neuroendocrine Tumors, Meningioma, Neuroblastoma, Medulloblastoma
Interventions
90Y-DOTA tyr3-Octreotide, 68Ga-DOTATOC PET Positron Emission Tomography (PET) whole body scan, Amino Acids
Radiation · Diagnostic Test · Drug
Lead sponsor
University of Iowa
Other
Eligibility
6 Months to 90 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Iowa City, Iowa
Completed Phase 1 Interventional Accepts healthy volunteers

Oral L-Citrulline and ADMA in Pregnancy

NCT00743210
Conditions
Blood Pressure
Interventions
L-citrulline, Placebo
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
14 Years to 40 Years · Female only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Protein Metabolism
Interventions
Arginine
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
30 Years and older · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Little Rock, Arkansas
Conditions
Prostate Cancer
Interventions
Sargramostim (GM-CSF, Leukine), Flutamide (Eulexin), PROSTVAC-F/ TRICOM, PROSTVAC-V/TRICOM
Drug · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 110 Years · Male only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
3
States / cities
Bethesda, Maryland • New Brunswick, New Jersey • Philadelphia, Pennsylvania
Conditions
Adult Giant Cell Glioblastoma, Adult Glioblastoma, Adult Gliosarcoma, Male Breast Cancer, Metastatic Squamous Neck Cancer With Occult Primary Squamous Cell Carcinoma, Recurrent Adenoid Cystic Carcinoma of the Oral Cavity, Recurrent Adult Brain Tumor, Recurrent Basal Cell Carcinoma of the Lip, Recurrent Colon Cancer, Recurrent Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity, Recurrent Hypopharyngeal Cancer, Recurrent Inverted Papilloma of the Paranasal Sinus and Nasal Cavity, Recurrent Laryngeal Cancer, Recurrent Lip and Oral Cavity Cancer, Recurrent Lymphoepithelioma of the Nasopharynx, Recurrent Lymphoepithelioma of the Oropharynx, Recurrent Metastatic Squamous Neck Cancer With Occult Primary, Recurrent Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity, Recurrent Mucoepidermoid Carcinoma of the Oral Cavity, Recurrent Nasopharyngeal Cancer, Recurrent Non-small Cell Lung Cancer, Recurrent Oropharyngeal Cancer, Recurrent Pancreatic Cancer, Recurrent Paranasal Sinus and Nasal Cavity Cancer, Recurrent Rectal Cancer, Recurrent Renal Cell Cancer, Recurrent Salivary Gland Cancer, Stage IIIA Breast Cancer, Stage IIIA Non-small Cell Lung Cancer, Stage IIIB Breast Cancer, Stage IIIB Non-small Cell Lung Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer, Stage IV Non-small Cell Lung Cancer, Stage IV Pancreatic Cancer, Stage IV Renal Cell Cancer, Stage IVA Colon Cancer, Stage IVA Rectal Cancer, Stage IVA Salivary Gland Cancer, Stage IVB Colon Cancer, Stage IVB Salivary Gland Cancer, Stage IVC Salivary Gland Cancer, Tongue Cancer, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
18F-fludeoxyglucose (18F-FDG), 18F-FPPRGD2
Drug
Lead sponsor
Sanjiv Sam Gambhir
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Stanford, California
Completed Phase 2 Interventional Accepts healthy volunteers

Nitric Oxide to Improve Blood Flow in Sickle Cell Disease

NCT00009581
Conditions
Sickle Cell Anemia
Interventions
L-NMMA, Acetylcholine
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
Not listed
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Asthma
Interventions
L-arginine, Placebo
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Sacramento, California
Terminated No phase listed Observational Accepts healthy volunteers

Oxytocin and Arginine Vasopressin in Pain Relief

NCT01328561
Conditions
Placebo Analgesia
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 55 Years
Enrollment
167 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Acromegaly
Interventions
ONO-5788, ONO-5788 Placebo, Octreotide
Drug
Lead sponsor
Ono Pharmaceutical Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Tempe, Arizona
Conditions
Obesity, PreDiabetes
Interventions
ADI-PEG20, Placebo
Biological · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 22 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
St Louis, Missouri
Completed Not applicable Interventional Accepts healthy volunteers Results available

Renin-Angiotensin Aldosterone System and Fibrinolysis Interaction in Humans-Specific Aim 3

NCT00685945
Conditions
Obesity
Interventions
Control (bradykinin), L-NMMA + bradykinin, Isosorbide + L-NMMA + bradykinin, Sildenafil + L-NMMA + bradykinin
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Conditions
Drug-Induced Nephropathy, Hypertension, Proteinuria
Interventions
Arginine, Placebo
Dietary Supplement · Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Houston, Texas
Conditions
Long-Functioning Pancreas Allografts, Pancreas Transplant
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Skin Care
Interventions
Skin Care Cream, Placebo
Combination Product · Drug
Lead sponsor
Wayne State University
Other
Eligibility
20 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Dearborn, Michigan
Conditions
Bladder Cancer
Interventions
high arginine nutritional supplement (Nestle's Impact AR)
Dietary Supplement
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 90 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Completed Not applicable Interventional Accepts healthy volunteers

Sexually Dimorphic Effects of GHRH in Adult Growth Hormone Testing

NCT00324064
Conditions
Growth Hormone Deficiency
Interventions
GHRH/arginine stimulation testing
Procedure
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
5 Years to 40 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Kansas City, Missouri
Not listed Not applicable Interventional Accepts healthy volunteers

Assessing the Effects of a Topically Applied Cream to Clitoral Blood Flow

NCT01085981
Conditions
Female Sexual Dysfunction
Interventions
arginine 20%, nicotinamide .01%, niacin.1%, in LipodermPG 50%, Topical study cream, GRAS cream
Drug
Lead sponsor
East Suburban Ob Gyn
Other
Eligibility
25 Years to 60 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Monroeville, Pennsylvania