Numerous clinical trials spanning Early Phase 1 through Phase 4 evaluate the therapeutic applications of reduced L-glutathione across diverse indications, including diabetes mellitus, ischemia-reperfusion injury, dermatological conditions, autistic disorder, and viral infections such as COVID-19. Sponsored predominantly by university medical centers and academic research institutes globally, these studies assess physiological parameters ranging from liver transplantation injury to glycemic and inflammatory profiles. Recruitment statuses vary from active and recruiting to completed, with select studies withdrawn or terminated.
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT07304440 | RECRUITING | Autism Spectrum Disorder; Autism; ASD; Autism Spectrum Disorder (ASD) |
Adia Med of Winter Park LLC |
2026-05-01 | PHASE1; PHASE2 |
| NCT07572890 | RECRUITING | Chronic Kidney Disease; Kidney Disease; Kidney Disease, Chronic; Chronic Kidney Disease (CKD); CKD |
Adia Med of Winter Park LLC |
2026-05-18 | PHASE1 |
| NCT02971046 | ACTIVE_NOT_RECRUITING | Healthy |
The Hospital for Sick Children |
2020-10-01 | |
| NCT05266417 | RECRUITING | Parkinson Disease |
Gateway Institute for Brain Research |
2022-02-07 | PHASE2 |
| NCT07064005 | RECRUITING | Parkinsons Disease (PD) |
Pravat Mandal |
2026-03-23 | PHASE1 |
| NCT06620523 | RECRUITING | Renal Failure; Coronary Artery Disease; Surgery; Surgery-Complications |
George Washington University |
2024-07-18 | PHASE2 |
| NCT06922669 | RECRUITING | Drug Induced Liver Injury |
General Hospital of Shenyang Military Region |
2025-06-24 | |
| NCT07448415 | NOT_YET_RECRUITING | Melasma |
Assiut University |
2026-02 | PHASE2; PHASE3 |
| NCT06957808 | RECRUITING | Schizophrenia Disorders |
King's College London |
2025-01-10 | |
| NCT07595705 | RECRUITING | Gingival Pigmentation; Depigmentation; Vitamin C; Glutathione |
Cairo University |
2025-08-01 | PHASE2 |
| NCT06896422 | RECRUITING | Non-Small Cell Lung Cancer; Chemotherapy; PD1 Antibody; Glutathione |
The First Affiliated Hospital of Zhengzhou University |
2025-06-01 | PHASE1 |
| NCT07622316 | RECRUITING | Autism Spectrum Disorder; Autism; ASD; Autism Spectrum Disorder (ASD) |
Greater Atlanta Integrative Pediatrics |
2026-06-01 | PHASE1 |
| NCT07690124 | NOT_YET_RECRUITING | Performance Recovery; Exercise-induced Inflammation; Exercise-induced Oxidative Stress |
University of Thessaly |
2026-09-01 | |
| NCT07379216 | RECRUITING | Skin Condition; Anti-Oxidative Stress |
TCI Co., Ltd. |
2026-01-24 | |
| NCT04740580 | RECRUITING | Alzheimer Disease |
Baylor College of Medicine |
2022-02-15 | EARLY_PHASE1 |
| NCT07162623 | COMPLETED | Hyperpigmentation |
NovoBliss Research Pvt Ltd |
2025-09-02 | |
| NCT05241262 | RECRUITING | Mitochondrial Disease |
Michio Hirano, MD |
2023-07-06 | PHASE1 |
| NCT07202156 | RECRUITING | Melasma (Facial Melasma) |
The First Affiliated Hospital with Nanjing Medical University |
2024-10-20 | |
| NCT07302828 | COMPLETED | Vitamin C; Glutathione |
TCI Co., Ltd. |
2025-12-15 | |
| NCT07748507 | COMPLETED | Gingiival Hyperpigmentation |
Krishnadevaraya College of Dental Sciences & Hospital |
2025-06-25 | |
| NCT07263841 | ACTIVE_NOT_RECRUITING | Post Burn Facial Hyperpigmentation |
King Edward Medical University |
2025-06-01 | PHASE2 |
| NCT07221955 | NOT_YET_RECRUITING | Effects of Qualia Glutathione+ on Blood Glutathione Levels; Glutathione |
Qualia Life Sciences |
2025-12-02 | |
| NCT07344688 | COMPLETED | Healhty |
Universitas Padjadjaran |
2025-08-22 | |
| NCT07724067 | COMPLETED | MASLD (Metabolic Dysfunction-Associated Steatotic Liver Disease) |
University of Bari |
2024-05-01 | |
| NCT05371288 | WITHDRAWN | COVID-19 |
University of California, Irvine |
2025-06 | EARLY_PHASE1 |
| NCT06345950 | COMPLETED | Bioavailability Heathy Volunteers; Safety |
Factors Group of Nutritional Companies Inc. |
2022-06-21 | |
| NCT03493178 | ACTIVE_NOT_RECRUITING | Mild Cognitive Impairment |
Baylor College of Medicine |
2018-04-19 | EARLY_PHASE1 |
| NCT05604586 | COMPLETED | Skeletal Muscle Performance; Gene Polymorphisms |
Poznan University of Life Sciences |
2022-05-01 | |
| NCT04020224 | WITHDRAWN | Safety Issues |
Swiss Transfusion SRC |
2024-01 | |
| NCT06205030 | Not yet recruiting | Diabetes Mellitus Type 2|Insulin Resistance |
Kerman Medical University|Afzalipour Hospital |
2024-06-14 | Phase 4 |
| NCT06313164 | COMPLETED | Type 2 Diabetes |
S.LAB (SOLOWAYS) |
2023-06-20 | |
| NCT05954052 | TERMINATED | Autism Spectrum Disorder |
University of Chicago |
2019-07-01 | PHASE4 |
| NCT05693948 | COMPLETED | Healthy |
USMARI Research & Innovation Centre |
2022-09-01 | |
| NCT06419712 | COMPLETED | Post-COVID19 Condition |
Escuela Militar de Graduados de Sanidad, SEDENA |
2022-11-25 | |
| NCT03166371 | WITHDRAWN | Malnutrition |
Emory University |
2022-02 | |
| NCT02505477 | COMPLETED | Schizophrenia; Cognitive Deficits; Schizophrenia; Negative Type |
University of California, Los Angeles |
2017-02-06 | PHASE4 |
| NCT05511402 | UNKNOWN | Parkinson Disease |
Saglik Bilimleri Universitesi |
2022-08-25 | |
| NCT05926245 | COMPLETED | Glutathione-cyclodextrin Complex Absorption |
Western University of Health Sciences |
2022-07-11 | PHASE1 |
| NCT02827747 | WITHDRAWN | Keratoconus |
University of Miami |
2021-08-01 | PHASE2 |
| NCT04015557 | SUSPENDED | CBS Deficiency |
Hospital de Clinicas de Porto Alegre |
2022-02-11 | PHASE1; PHASE2 |
| NCT04672447 | COMPLETED | Menopause; Cardiovascular Risk Factor |
Texas Tech University |
2020-07-01 | |
| NCT03596125 | TERMINATED | Preterm Delivery |
Nantes University Hospital |
2018-11-05 | PHASE2; PHASE3 |
| NCT04816487 | UNKNOWN | Discoloration, Tooth |
Cairo University |
2021-05-01 | |
| NCT04386187 | COMPLETED | Type 2 Diabetes |
University of California, San Diego |
2020-07-28 | |
| NCT01967667 | COMPLETED | Schizophrenia |
University of Maryland, Baltimore |
2014-04 | |
| NCT04389788 | COMPLETED | Periorbital Hypermelanosis |
Sohag University |
2020-02-12 | |
| NCT03725241 | COMPLETED | Healthy |
University of North Texas, Denton, TX |
2018-10-29 | |
| NCT04175873 | COMPLETED | Infertility; Anesthesia; Oxidative Stress; Pain, Postoperative |
Kahramanmaras Sutcu Imam University |
2019-11-25 | |
| NCT03486054 | WITHDRAWN | Anemia |
Swiss Transfusion SRC |
2019-06 | |
| NCT02584283 | COMPLETED | Liver Failure; End Stage Liver Disease; Biliary Tract Diseases |
Robert J. Porte |
2016-01 | PHASE3 |
| NCT02848417 | UNKNOWN | Gulf War Syndrome |
South Florida Veterans Affairs Foundation for Research and Education |
2016-04 | PHASE1; PHASE2 |
| NCT01870193 | COMPLETED | Aging |
Rajagopal V Sekhar |
2013-04-23 | EARLY_PHASE1 |
| NCT02757833 | WITHDRAWN | Female, Late Life Depression |
London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's |
2019-02-15 | PHASE1 |
| NCT02251041 | COMPLETED | Reperfusion Injury |
Universitaire Ziekenhuizen KU Leuven |
2014-09 | PHASE2 |
| NCT03020719 | COMPLETED | Cystic Fibrosis |
University of Minnesota |
2017-06-14 | PHASE2 |
| NCT02348775 | COMPLETED | HIV Infection; Erythrocyte Glutathione Deficiency |
Baylor College of Medicine |
2014-11 | PHASE1 |
| NCT04105504 | COMPLETED | Glutathione; Skin Whitening |
Dr Irma Bernadette S Sitohang |
2018-04-08 | PHASE1 |
| NCT03374150 | UNKNOWN | Low-Calorie Diet; Diet, High-Protein; Obesity; Pituitary; Weight Cycling |
Indonesia University |
2017-05-26 | |
| NCT02948673 | COMPLETED | Type 2 Diabetes; Oxidative Stress; Mitochondrial Reactive Oxygen Species Production |
University of Copenhagen |
2016-05 | |
| NCT02794389 | COMPLETED | Anorexia Nervosa; Compulsive Behavior |
University of Oxford |
2016-03 | |
| NCT02321579 | UNKNOWN | Liver Cirrhosis; Liver Cancer |
Taichung Veterans General Hospital |
2014-12 | |
| NCT02662816 | COMPLETED | Assay Muscle; Liver Glutathione in Healthy Human |
University Hospital, Clermont-Ferrand |
2016-06 | |
| NCT02438956 | COMPLETED | Improvement in Immune Cell Function in Elderly Humans |
University of Florida |
2015-10 | |
| NCT02424708 | COMPLETED | Parkinson's Disease |
Bastyr University |
2015-04 | PHASE2 |
| NCT03121222 | COMPLETED | Glutathione Metabolism Anemias |
Aristotle University Of Thessaloniki |
2015-11-01 | PHASE2 |
| NCT01398748 | COMPLETED | Parkinson's Disease (PD) |
Bastyr University |
2012-07 | PHASE1 |
| NCT00069134 | COMPLETED | Protein-energy Malnutrition; Kwashiorkor; Marasmus |
Baylor College of Medicine |
2003-06 | |
| NCT00287365 | COMPLETED | Mild Asthma |
University of North Carolina, Chapel Hill |
2006-01 | |
| NCT02316925 | WITHDRAWN | Improvement in Immune Cell Function in Elderly Humans |
University of Florida |
2015-05 | |
| NCT02278822 | COMPLETED | Healthy |
Milton S. Hershey Medical Center |
2014-11 | |
| NCT02324426 | COMPLETED | Parkinson's Disease |
University of Washington |
2014-12 | PHASE1 |
| NCT02310971 | WITHDRAWN | Pancreatic Carcinoma Stage I; Pancreatic Carcinoma Stage II |
Prima BioMed Ltd |
2015-02 | PHASE2 |
| NCT01521143 | TERMINATED | Epithelial Ovarian Cancer |
Prima BioMed Ltd |
2012-01 | PHASE2 |
| NCT01265563 | COMPLETED | Diabetic Nephropathy; Proteinuria; Oxidative Stress |
VA Office of Research and Development |
2011-01 | PHASE2 |
| NCT02125045 | COMPLETED | Health Subjects With Cardiovascular Risk Factors |
Niguarda Hospital |
2014-02 | PHASE3 |
| NCT01402570 | COMPLETED | Post-polio Syndrome; Physical Activity; Depression; Pain; Sleep Disorders |
University of Michigan |
2011-08 | |
| NCT01071486 | WITHDRAWN | Busulfan Pharmacokinetic Analysis; GST Genetic Polymorphism |
Rambam Health Care Campus |
2009-08 | PHASE4 |
| NCT00889538 | COMPLETED | Autism; Severe Behavior Disorder |
University of Louisville |
2009-04 | |
| NCT02311907 | COMPLETED | Chemotherapeutic Agent Toxicity; Neuropathy; Neurotoxicity Syndrome; Pain; Stage IIIA Fallopian Tube Cancer; Stage IIIA Ovarian Cancer; Stage IIIA Primary Peritoneal Cancer; Stage IIIB Fallopian Tube Cancer; Stage IIIB Ovarian Cancer; Stage IIIB Primary Peritoneal Cancer; Stage IIIC Fallopian Tube Cancer; Stage IIIC Ovarian Cancer; Stage IIIC Primary Peritoneal Cancer; Stage IV Fallopian Tube Cancer; Stage IV Ovarian Cancer; Stage IV Primary Peritoneal Cancer |
Alliance for Clinical Trials in Oncology |
2009-12 | PHASE3 |
| NCT01550432 | COMPLETED | Obesity; Hyperlipidemia; Insulin Resistance; Hypertension |
Stanford University |
2011-06 | |
| NCT01450267 | UNKNOWN | Cystic Fibrosis |
Serafino A. Marsico |
2010-06 | PHASE3 |
| NCT01403506 | UNKNOWN | Disorder Related to Renal Transplantation |
Shahid Beheshti University of Medical Sciences |
2011-04 | PHASE3 |
| NCT02029521 | COMPLETED | Cystic Fibrosis |
Clark Bishop |
2011-03 | |
| NCT01044277 | COMPLETED | Healthy Adults |
Milton S. Hershey Medical Center |
2010-02 | |
| NCT01355198 | COMPLETED | HIV Infection; Erythrocyte Glutathione Deficiency |
Baylor College of Medicine |
2010-08 | PHASE1 |
| NCT01251315 | COMPLETED | Oxidative Stress |
Charles Drew University of Medicine and Science |
2010-12 | PHASE1 |
| NCT00266331 | COMPLETED | Breast Cancer |
Nathalie Johnson |
2004-10 | PHASE2 |
| NCT00858273 | COMPLETED | Diabetes Mellitus, Type 1 |
Nemours Children's Clinic |
2008-03 | |
| NCT01142024 | COMPLETED | Nephropathy; Oxidative Stress |
Huashan Hospital |
2010-03 | |
| NCT00254176 | UNKNOWN | Sepsis; Bronchopulmonary Dysplasia; Necrotizing Enterocolitis; Retinopathy of Prematurity; Systemic Inflammatory Response Syndrome |
University of California, Los Angeles |
2006-09 | PHASE2; PHASE3 |
| NCT00607061 | TERMINATED | Low Birth Weight |
Nantes University Hospital |
2007-10 | |
| NCT00506688 | COMPLETED | Cystic Fibrosis |
Mukoviszidose Institut gGmbH |
2007-07 | PHASE2 |
| NCT01016080 | COMPLETED | Skin Whitening |
Chulalongkorn University |
2009-02 | PHASE1 |
| NCT00858897 | COMPLETED | Diabetes Mellitus, Type 1 |
Nemours Children's Clinic |
2007-06 | |
| NCT01116596 | COMPLETED | Chronic Pain; Elderly |
University Hospital, Clermont-Ferrand |
2007-02 | PHASE1 |
| NCT00692315 | COMPLETED | Autistic Disorder |
Arkansas Children's Hospital Research Institute |
2006-09 | |
| NCT01177319 | COMPLETED | Parkinson's Disease |
University of South Florida |
2003-09 | PHASE2 |
| NCT00910442 | COMPLETED | HIV Infection |
UPECLIN HC FM Botucatu Unesp |
2002-02 | PHASE2 |
| NCT01506765 | COMPLETED | Schizophrenia |
Centre Hospitalier Universitaire Vaudois |
2003-08 | PHASE1 |
| NCT00227058 | COMPLETED | Seasonal Allergic Rhinitis |
University of Mississippi Medical Center |
2005-01 | |
| NCT00127309 | COMPLETED | Alcohol Drinking |
Piyavate Hospital |
2005-06 | |
| NCT00323583 | UNKNOWN | Adenocarincoma of Pancreas; Stage III Pancreatic Cancer; Stage IVA Pancreatic Cancer; Stage IVB Pancreatic Cancer |
Seattle Cancer Treatment and Wellness Center |
2006-05 | PHASE2 |
(data from https://clinicaltrials.gov, updated on 2026-08-21)
Mechanism and Biochemical Profile
Appendix RUO and cGMP Quality Standards
| Quality Dimension | RUO (Research Use Only) | cGMP (Current Good Manufacturing Practice) |
|---|---|---|
| Clinical Applicability | Prohibited in human clinical trials or medical diagnostics. | Mandatory for human clinical trials (Phase I–III) and therapies. |
| Regulatory Status | Non-regulated grade; exempt from drug manufacturing laws. | Legally enforced by health authorities (e.g., FDA, EMA, NMPA). |
| Facility Environment | Unclassified analytical or research laboratories. | Validated Cleanrooms (ISO Class 5–8) with continuous monitoring. |
| Quality Control | Basic purity and activity testing. | Rigorous safety release testing (Sterility, Endotoxin, Mycoplasma). |
| Process Validation | Basic equipment calibration; no process validation required. | Full qualification (IQ/OQ/PQ) and complete batch records. |
| Quality Assurance | Vendor self-declared without required formal QMS. | Mandatory QA/QC unit, Change Control, CAPA, and vendor audits. |
| Regulatory Impact | High risk of IND rejection if used as a critical raw material. | Required for IND/NDA filings, supported by Drug Master Files (DMF). |
Footnotes
Regulatory Note: Governed by FDA (21 CFR Parts 210/211/312), EMA (EudraLex Vol 4), ICH Guidelines (E6/Q7/Q9/Q10), and compendial standards (USP <71>/<85>/<1043>).
- GSH (L-Glutathione reduced) Solubility in DMSO
- GSH (L-Glutathione reduced) Storage
- GSH (L-Glutathione reduced) Stability
- GSH (L-Glutathione reduced) Molecular Weight
- GSH (L-Glutathione reduced) SMILES
- GSH (L-Glutathione reduced) CAS Number
- GSH (L-Glutathione reduced) Chemical Structure (2D and 3D)
- GSH (L-Glutathione reduced) SDS|MSDS