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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Essential Amino Acid Clear all
Recruiting Phase 1Phase 2 Interventional

An Optimal Dose Finding Study of N-Acetylcysteine in Patients With Myeloproliferative Neoplasms

NCT05123365
View directory record Official record
Conditions
Myeloproliferative Neoplasm, MPN, Essential Thrombocythemia, Polycythemia Vera, Myelofibrosis
Interventions
N-Acetylcysteine
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
2
States / cities
Irvine, California • Orange, California
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Tryptophan MRI in People With Schizophrenia and Healthy Controls

NCT02067975
View directory record Official record
Conditions
Schizophrenia
Interventions
Tryptophan, Placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 55 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Sep 28, 2026, 8:23 PM EDT
Withdrawn Phase 4 Interventional

Blood Pressure Lowering in Acute Stroke Trial

NCT01400256
View directory record Official record
Conditions
Stroke, Acute
Interventions
Valsartan
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 8, 2016 · Synced Sep 28, 2026, 8:23 PM EDT
Recruiting Phase 1 Interventional

Study Evaluating [18F]NOTA-ABY030 for Safety and Tolerability of Indeterminate Primary and/or Metastatic Disease in Head and Neck Squamous Cell Carcinoma

NCT07217028
View directory record Official record
Conditions
SCC - Squamous Cell Carcinoma, Radiotracer, Head and Neck Squamous Cell Carcinoma, Metastatic Head and Neck Squamous Cell Carcinoma
Interventions
Cetuximab (EGFR inhibitor), 18F-NOTA-ABY-030, Positron Emission Tomography (PET)
Drug · Procedure
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Pegzilarginase in Patients With Arginase 1 Deficiency

NCT03921541
View directory record Official record
Conditions
Arginase I Deficiency, Hyperargininemia
Interventions
Pegzilarginase, Placebo
Drug
Lead sponsor
Immedica Pharma AB
Industry
Eligibility
2 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
17
States / cities
Rogers, Arkansas • Orange, California • Stanford, California + 14 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 28, 2026, 8:23 PM EDT
Withdrawn Not applicable Interventional

Targeted Nutritional Supplement After Lumbar Spine Surgery: A Randomized, Placebo-Controlled, Double-Blind Trial

NCT06579391
View directory record Official record
Conditions
Lumbar Spinal Stenosis
Interventions
Essential amino acids, Alanine
Dietary Supplement
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated May 28, 2025 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Metabolic Effects of Perimenopause

NCT06098183
View directory record Official record
Conditions
Perimenopausal Disorder
Interventions
Whey Protein Isolate, Non-caloric Placebo water
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
38 Years to 60 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Casein Protein and Leucine Supplementation in Chronic Obstructive Pulmonary Disease (COPD)

NCT01734473
View directory record Official record
Conditions
COPD
Interventions
Hydrolyzed casein protein, Hydrolyzed casein protein + carbohydrates, Hydrolyzed casein protein + leucine, Hydrolyzed casein protein + carbohydrates + leucine, 4 levels of hydrolyzed casein protein + carbohydrates
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
45 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Phase 3 Interventional

Efficacy and Safety of Valsartan and the Combination of Valsartan and Simvastatin

NCT00385931
View directory record Official record
Conditions
Hypertension, Hypercholesterolemia, Dyslipidemia
Interventions
Valsartan and simvastatin
Drug
Lead sponsor
Novartis
Industry
Eligibility
50 Years and older
Enrollment
412 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Sep 28, 2026, 8:23 PM EDT
Active, not recruiting Not applicable Interventional

Assessing The Effects of Exercise, Protein, and Electric Stimulation On Intensive Care Unit Patients Outcomes

NCT02509520
View directory record Official record
Conditions
Muscle Weakness, Critical Illness, Sarcopenia
Interventions
MPR and High Protein Supplement (HPRO) and Neuromuscular Electric Stimulation (NMES)
Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
45 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Phase 1 Interventional

Stem Cell Transplantation in Treating Patients With Hematologic Cancer

NCT00004904
View directory record Official record
Conditions
Chronic Myeloproliferative Disorders, Graft Versus Host Disease, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Precancerous/Nonmalignant Condition, Small Intestine Cancer
Interventions
anti-thymocyte globulin, filgrastim, cladribine, cyclophosphamide, etoposide, methylprednisolone, tacrolimus, allogeneic bone marrow transplantation, in vitro-treated peripheral blood stem cell transplantation
Biological · Drug · Procedure
Lead sponsor
Northwestern University
Other
Eligibility
Up to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2000
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 3, 2012 · Synced Sep 28, 2026, 8:23 PM EDT
Withdrawn Not applicable Interventional

Blood Pressure Lowering in Acute Stroke Trial (BLAST)

NCT00627991
View directory record Official record
Conditions
Cerebrovascular Accident
Interventions
Valsartan
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Determinants of Alpha-aminoadipic Acid (2-AAA) and Relationship to Diabetes: Study 2

NCT04417218
View directory record Official record
Conditions
Healthy
Interventions
Lysine, Controlled Diet
Dietary Supplement
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 20, 2023 · Synced Sep 28, 2026, 8:23 PM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

Impact of NOS, COX, and ROS Inhibition on Cerebral Blood Flow Regulation

NCT03066115
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 9, 2019 · Synced Sep 28, 2026, 8:23 PM EDT
Completed No phase listed Observational

Genetic Regulation of Surfactant Deficiency

NCT00828243
View directory record Official record
Conditions
Respiratory Distress Syndrome, Newborn
Interventions
Nutrient
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
1 Day to 6 Months
Enrollment
525 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 6, 2021 · Synced Sep 28, 2026, 8:23 PM EDT
Withdrawn Not applicable Interventional

Amino Acid Supplementation in Recovery From Traumatic Brain Injury

NCT01495871
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Amino Acids, Placebo of inert compounds, Valine
Dietary Supplement
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
2
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 10, 2015 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Phase 1 Interventional

Safety, Tolerability and Effects of L-Arginine in Boys With Dystrophinopathy on Corticosteroids

NCT01388764
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 2, 2012 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Phase 1 Interventional

Bone Marrow and Peripheral Stem Cell Transplantation in Treating Patients With Hematologic Cancer

NCT00004232
View directory record Official record
Conditions
Chronic Myeloproliferative Disorders, Graft Versus Host Disease, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Precancerous/Nonmalignant Condition
Interventions
filgrastim, cyclosporine, methylprednisolone, prednisone, allogeneic bone marrow transplantation, peripheral blood stem cell transplantation
Biological · Drug · Procedure
Lead sponsor
Northwestern University
Other
Eligibility
10 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 31, 2012 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Effectiveness of Arginine as a Treatment for Sickle Cell Anemia

NCT00513617
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
Arginine, Placebo
Drug
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
5 Years and older
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
17
States / cities
Oakland, California • San Francisco, California • Denver, Colorado + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Sep 28, 2026, 8:23 PM EDT
Recruiting Not applicable Interventional

Evaluating a Nonessential Amino Acid Restriction (NEAAR) Medical Food With Total Neoadjuvant Therapy for Locally Advanced Rectal Cancer (LARC)

NCT06380101
View directory record Official record
Conditions
Rectal Cancer
Interventions
NEAAR Medical Food
Other
Lead sponsor
University of South Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety of Aliskiren and Valsartan Versus Placebo in Patients Stabilized Following an Acute Coronary Syndrome

NCT00409578
View directory record Official record
Conditions
Post Acute Coronary Syndrome, Myocardial Ischemia
Interventions
Placebo, Aliskiren 300 mg, Valsartan 320 mg, Aliskiren/valsartan 300/320 mg
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
1,101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Investigative Site, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 18, 2011 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Mechanisms of Cerebrovascular Control

NCT02936687
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Oct 17, 2021 · Synced Sep 28, 2026, 8:23 PM EDT
Completed Early Phase 1 Interventional

Nutritional Optimization and Bone Health Management for Older Adults Undergoing Hip Fracture Surgery

NCT05971173
View directory record Official record
Conditions
Hip Fractures
Interventions
Juven, Centrum Silver 50+
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
65 Years to 89 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 28, 2026, 8:23 PM EDT
Recruiting Phase 4 Interventional

Effects of DaxibotulinumtoxinA for Blepharospasm and Hemifacial Spasm

NCT06195241
View directory record Official record
Conditions
Benign Essential Blepharospasm, Hemifacial Spasm
Interventions
DaxibotulinumtoxinA
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Sep 28, 2026, 8:23 PM EDT