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Showing 25–43 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Placebo (l-alanine) Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Blood Lactate Concentrations With and Without Exercise in Parkinson's Disease and Multiple Sclerosis Patients

NCT02184494
View directory record Official record
Conditions
Parkinson's Disease, Multiple Sclerosis
Interventions
pro5 AIRdaptive Power Plate (Badhoevedorp, The Netherlands)
Device
Lead sponsor
Florida State University
Other
Eligibility
45 Years to 90 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
2
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Mar 29, 2017 · Synced Sep 1, 2026, 9:43 PM EDT
Completed Phase 2 Interventional Results available

Mechanistic Approach to Preventing Atrophy and Restoring Function in Older Adults

NCT02145949
View directory record Official record
Conditions
Muscle Atrophy, Quality of Life
Interventions
Essential Amino Acids (EAA), Placebo (Alanine)
Drug
Lead sponsor
University of Oregon
Other
Eligibility
50 Years to 80 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
2
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 22, 2024 · Synced Sep 1, 2026, 9:43 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Aminotransferase Trends During Prolonged Acetaminophen Dosing

NCT00743093
View directory record Official record
Conditions
Drug Toxicity, Healthy
Interventions
acetaminophen, placebo
Drug
Lead sponsor
Denver Health and Hospital Authority
Other
Eligibility
18 Years and older
Enrollment
398 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
2
States / cities
Aurora, Colorado • Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 17, 2013 · Synced Sep 1, 2026, 9:43 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Withdrawn Not applicable Interventional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 1, 2026, 9:43 PM EDT
Recruiting Phase 2 Interventional

MYELOMATCH: A Screening Study to Assign People With Myeloid Cancer to a Treatment Study or Standard of Care Treatment Within myeloMATCH (MyeloMATCH Screening Trial)

NCT05564390
View directory record Official record
Conditions
Acute Myeloid Leukemia, Acute Myeloid Leukemia Arising From Previous Myelodysplastic/Myeloproliferative Neoplasm, Acute Myeloid Leukemia Post Cytotoxic Therapy, Acute Myeloid Leukemia, Myelodysplasia-Related, Myelodysplastic Syndrome
Interventions
Allogeneic Hematopoietic Stem Cell Transplantation, Azacitidine, Best Practice, Biopsy Procedure, Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Busulfan, Chest Radiography, Computed Tomography, Cytarabine, Daunorubicin Hydrochloride, Decitabine and Cedazuridine, Echocardiography Test, Emavusertib, Enasidenib, Epoetin Alfa, Fludarabine, Gemtuzumab Ozogamicin, Gilteritinib, Liposome-encapsulated Daunorubicin-Cytarabine, Luspatercept, Melphalan, Multigated Acquisition Scan, Mutation Carrier Screening, Olutasidenib, Placebo Administration, Positron Emission Tomography, Total-Body Irradiation, Venetoclax
Procedure · Drug · Other + 2 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
336
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 259 more
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 1, 2026, 9:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Safety and Tolerability of a Novel Amino-acid Based Hydration Drink in Healthy Volunteers

NCT05592951
View directory record Official record
Conditions
Safety, Tolerance
Interventions
Crystal Light (once serving), Liquid IV with amino acids (one serving), Liquid IV with amino acids (two servings), Liquid IV with amino acids (three servings)
Dietary Supplement
Lead sponsor
University of Memphis
Other
Eligibility
18 Years to 50 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 25, 2023 · Synced Sep 1, 2026, 9:43 PM EDT
Recruiting Not applicable Interventional

Daily Amino Acid Supplementation for People With Parkinson's Disease

NCT07115563
View directory record Official record
Conditions
Parkinson Disease (PD)
Interventions
Targeted Amino Acid Supplement, Control (placebo)
Dietary Supplement
Lead sponsor
Cristina Colon-Semenza
Other
Eligibility
50 Years to 90 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Farmington, Connecticut • Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 1, 2026, 9:43 PM EDT
Recruiting Early Phase 1 Interventional

Glutathione, Brain Metabolism and Inflammation in Alzheimer's Disease

NCT04740580
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Glycine, N-acetylcysteine, Alanine
Dietary Supplement
Lead sponsor
Baylor College of Medicine
Other
Eligibility
55 Years to 85 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced Sep 1, 2026, 9:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Muscle Mass During Space Exploration

NCT00968344
View directory record Official record
Conditions
Muscle Loss
Interventions
Leucine, Alanine
Dietary Supplement
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
45 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated May 30, 2019 · Synced Sep 1, 2026, 9:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of a Pre-Workout Dietary Supplement

NCT02952014
View directory record Official record
Conditions
Dietary Modification
Interventions
C4 Extreme, C4 Extreme (without Advantra Z, Placebo
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 40 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 1, 2026, 9:43 PM EDT
Recruiting Phase 2 Interventional

Neurovascular Transduction During Exercise in Chronic Kidney Disease

NCT02947750
View directory record Official record
Conditions
Renal Insufficiency, Chronic
Interventions
6R-BH4, 6R-BH4 placebo, Folic acid, Exercise training, Stretching, Histidine and beta-alanine supplementation, Histidine and beta-alanine placebo
Drug · Other · Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
18 Years to 75 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
3
States / cities
Atlanta, Georgia • Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 1, 2026, 9:43 PM EDT
Completed Phase 2 Interventional Results available

A Study to Compare Tenofovir DF Versus the Combination of Emtricitabine Plus Tenofovir DF for the Treatment of Chronic Hepatitis B in Patients With Normal Alanine Aminotransferase (ALT)

NCT00507507
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
Tenofovir DF, FTC, Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 69 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
10
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2015 · Synced Sep 1, 2026, 9:43 PM EDT
Active, not recruiting Phase 3 Interventional Results available

Ibrutinib Before and After Stem Cell Transplant in Treating Patients With Relapsed or Refractory Diffuse Large B-cell Lymphoma

NCT02443077
View directory record Official record
Conditions
Recurrent Diffuse Large B-Cell Lymphoma Activated B-Cell Type, Refractory Diffuse Large B-Cell Lymphoma Activated B-Cell Type
Interventions
Autologous Bone Marrow Transplantation, Autologous Hematopoietic Stem Cell Transplantation, Carmustine, Cyclophosphamide, Cytarabine, Etoposide, Ibrutinib, Laboratory Biomarker Analysis, Melphalan, Pharmacogenomic Study, Placebo Administration
Procedure · Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
280
States / cities
Anchorage, Alaska • Fairbanks, Alaska • Tucson, Arizona + 202 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 1, 2026, 9:43 PM EDT
Terminated Not applicable Interventional

Randomized Control Trial of L-Alanine and Placebo in Fructose Intolerance

NCT01288495
View directory record Official record
Conditions
Dietary Fructose Intolerance
Interventions
supplemental L-alanine, Metamucil
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Apr 14, 2020 · Synced Sep 1, 2026, 9:43 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

A Double-Blind Placebo-Control Dose Escalating Study to Evaluate the Safety and Immunogenicity of dmLT by Oral, Sublingual and Intradermal Vaccination in Adults Residing in an Endemic Area

NCT03548064
View directory record Official record
Conditions
Gastroenteritis Escherichia Coli, Immunisation
Interventions
Placebo, Recombinant Double Mutant Heat-Labile Toxin LT(R192G/L211A) (dmLT) Oral enterotoxigenic Escherichia coli (ETEC) Vaccine
Other · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Sep 1, 2026, 9:43 PM EDT
Not listed Not applicable Interventional

Investigation of Alanine in Fructose Intolerance: A Dose Ranging Study

NCT01185210
View directory record Official record
Conditions
Fructose Intolerance
Interventions
Placebo, Alanine
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2024
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 20, 2022 · Synced Sep 1, 2026, 9:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Ovarian Hormone Suppression on Vascular and Cognitive Function

NCT03112226
View directory record Official record
Conditions
Cognitive Impairment, Estrogen Deficiency, Menopause, Endothelial Dysfunction, Vascular Stiffness
Interventions
GnRHant + E2, GnRHant + Placebo
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Aurora, Colorado • Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 6, 2021 · Synced Sep 1, 2026, 9:43 PM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

Antioxidant Use in Diabetes to Reduce Oxidative Stress

NCT03056014
View directory record Official record
Conditions
Ameliorating Oxidative Stress in Type 1 Diabetes
Interventions
N-acetyl cysteine, omega 6 Fish oil ( PUFA), Placebo
Drug · Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 21, 2022 · Synced Sep 1, 2026, 9:43 PM EDT
Completed Phase 2 Interventional

Evaluation of Glucose Lowering Effect, Safety and Tolerability of CS-917

NCT00290940
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
CS-917, metformin hydrochloride, pioglitazone
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years to 70 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
66
States / cities
Birmingham, Alabama • Northport, Alabama • Mesa, Arizona + 62 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2007 · Synced Sep 1, 2026, 9:43 PM EDT