- Conditions
- Sickle Cell Anemia
- Interventions
- Hydroxyurea, L-Arginine, Sildenafil
- Drug
- Lead sponsor
- National Institutes of Health Clinical Center (CC)
- NIH
- Eligibility
- 16 Years and older
- Enrollment
- 39 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2006
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
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 100
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Gastrointestinal Symptoms
- Interventions
- Prog: Purify-2
- Other
- Lead sponsor
- Nature's Sunshine Products, Inc.
- Industry
- Eligibility
- 18 Years to 69 Years
- Enrollment
- 38 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017
- U.S. locations
- 1
- States / cities
- Lehi, Utah
- Conditions
- Hypoxia, Hypercapnia
- Interventions
- L-NMMA, Ketorolac, Ascorbic Acid, Intravenous Catheter, Transcranial Doppler Ultrasound
- Drug · Procedure
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 18 Years to 45 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Healthy
- Interventions
- Fulvestrant
- Drug
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 50 Years to 80 Years · Female only
- Enrollment
- 30 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2013
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota
- Conditions
- Ulcerative Colitis, Colon Cancer
- Interventions
- Not listed
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 204 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Vascular Function, Racial Disparity
- Interventions
- Dietary Nitrates 400 mg, L-citrulline 3 g, Sildenafil 100 mg, Bosentan 125 mg
- Dietary Supplement · Drug
- Lead sponsor
- University of Mississippi Medical Center
- Other
- Eligibility
- 18 Years to 40 Years
- Enrollment
- 8 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021
- U.S. locations
- 1
- States / cities
- Jackson, Mississippi
- Conditions
- Cardiovascular Diseases
- Interventions
- L-NAME, L-Arginine, Phenylephrine
- Drug
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 54 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2005 – 2008
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- Cardiovascular Diseases, Cardiovascular Risk Factor, Vasoconstriction
- Interventions
- BQ-788, BQ-123, L-Arginine, NG Nitro L Arginine Methyl Ester, Sodium Nitroprusside, Lactated Ringer's
- Drug
- Lead sponsor
- The University of Texas at Arlington
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 19 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2023
- U.S. locations
- 1
- States / cities
- Arlington, Texas
- Conditions
- Dystrophinopathy, Duchenne Muscular Dystrophy, Becker's Muscular Dystrophy
- Interventions
- L-arginine
- Drug
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 7 Years to 11 Years · Male only
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Schizo Affective Disorder, Schizophrenia
- Interventions
- L-arginine, Sapropterin Dihydrochloride
- Drug
- Lead sponsor
- University of Massachusetts, Worcester
- Other
- Eligibility
- 18 Years to 65 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Worcester, Massachusetts
- Conditions
- Cirrhosis, Liver Cirrhosis
- Interventions
- N-monomethyl-L-arginine
- Drug
- Lead sponsor
- National Center for Research Resources (NCRR)
- NIH
- Eligibility
- 18 Years to 70 Years
- Healthy volunteers
- Accepts healthy volunteers
- U.S. locations
- 1
- States / cities
- Denver, Colorado
- Conditions
- Obesity
- Interventions
- Sitagliptin, Pegvisomant, Placebo, L-NMMA, Exendin 9-39
- Drug
- Lead sponsor
- Vanderbilt University
- Other
- Eligibility
- 18 Years to 40 Years
- Enrollment
- 44 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2017
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Hypotension, Spinal Cord Injury
- Interventions
- N-Nitro L-arginine-methylester (L-NAME), Head-up Tilt maneuver
- Drug · Procedure
- Lead sponsor
- US Department of Veterans Affairs
- Federal
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2003 – 2010
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- Sexual Dysfunction, Sexuality and Reproductive Issues, Unspecified Adult Solid Tumor, Protocol Specific
- Interventions
- ArginMax, Placebo
- Dietary Supplement
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 186 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2010
- U.S. locations
- 25
- States / cities
- Newark, Delaware • Miami Beach, Florida • Augusta, Georgia + 21 more
- Conditions
- Metabolic Syndrome X
- Interventions
- NOS Inhibition, ET-1 Inhibition, NOS Inhibition Placebo, 3 Tesla MRI, Intravenous Catheter, Oral Glucose Tolerance Test, ET-1 Inhibition Placebo
- Drug · Device · Other
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 59 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2021
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- 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
- Burn Wound
- Interventions
- Impact Advanced Recovery, Boost High Protein
- Dietary Supplement
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 55 Years and older
- Enrollment
- 11 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Nitric Oxide, Endothelium-Derived Relaxing Factor, Healthy
- Interventions
- L-NMMA and Sodium Nitrite
- Drug
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
- NIH
- Eligibility
- Not listed
- Enrollment
- 42 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2002 – 2003
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Tetraplegia, Asthma
- Interventions
- N-Nitro L-arginine-methylester (L-NAME)
- Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 23 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2010
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- Pre-Eclampsia
- Interventions
- L-arginine supplementation in a medical food, Vitamin C and E supplementation in a medical food
- Procedure
- Lead sponsor
- Instituto Nacional de Perinatologia Isidro Espinosa de los Reyes
- Government
- Eligibility
- 19 Years to 32 Years · Female only
- Enrollment
- 585 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2001 – 2006
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Pulmonary Disease, Chronic Obstructive
- Interventions
- stable amino acid infusion, acute exercise with amino acid infusion, 24-hour post exercise amino acid infusion
- Other
- Lead sponsor
- Texas A&M University
- Other
- Eligibility
- 45 Years and older
- Enrollment
- 57 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2020
- U.S. locations
- 1
- States / cities
- College Station, Texas
- Conditions
- Hypertension, Diabetes
- Interventions
- L-Arginine, Placebo Supplement
- Dietary Supplement
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 70 Years and older
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Cardiovascular Diseases, Cardiovascular Risk Factor, Vasoconstriction
- Interventions
- Control: Lacated Ringers, Apocynin, Allopurinol, BH4, NG Nitro L Arginine Methyl Ester, Sodium Nitroprusside, Acetyl-ß-methylcholine chloride
- Drug
- Lead sponsor
- The University of Texas at Arlington
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018
- U.S. locations
- 1
- States / cities
- Arlington, Texas
- Conditions
- Liver Transplant Recipients
- Interventions
- L-arginine, Placebo
- Dietary Supplement
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2012
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota