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Glutathione clinical trials

ClinicalTrials.gov lists 57 registered trials of Glutathione: 11 recruiting or about to, 0 running, 36 completed, 4 in phase 3, 6 with results posted. Recruiting sites are in United States, China, Greece, Taiwan, Egypt. The largest is Polymorphism of Oxidative Stress Genes in the Pathogenesis and Antioxidant Prevention of Contrast Induced Nephropathy (1,000 people).

57registered trials

11recruiting now

0running

36completed

4in phase 3

6with results posted

Recruiting: 11Completed: 36Stopped or withdrawn: 4Status unknown: 657trials
  • Recruiting 11
  • Completed 36
  • Stopped or withdrawn 4
  • Status unknown 6

Where Glutathione is in testing

Registered trials by phase. Phase 3 trials are the large ones that decide approval.

1Early phase 1First doses in people
8Phase 1Safety and dosing
11Phase 2Does it work?
4Phase 3Large confirmatory trials
1Phase 4After approval
32Not phasedObservational and other

Timeline

Each bar runs from a trial's start to its planned end; faded bars have no end date. Click a bar to open the trial.

20142016201820202022202420262028S-Acetyl Glutathione and Performance Recovery in Soccer · Recruiting · No phase · 20 people · 2026-09-01 to 2026-12-20GAIP ASD Research Study · Recruiting · Phase 1 · 100 people · 2026-06-01 to 2026-12-31Adia Med of Winter Park LLC Chronic Kidney Disease Research Study · Recruiting · Phase 1 · 100 people · 2026-05-18 to 2028-01Adia Med of Winter Park LLC Autism Spectrum Disorder Research Study · Recruiting · Phase 1 · 100 people · 2026-05-01 to 2028-06-15Evaluation of the Efficacy of Oral Tranexamic Acid and Glutathione-assisted Microneedling in Treatment of Melasma · Recruiting · Phase 2, Phase 3 · 42 people · 2026-02 to 2027-02Efficacy Evaluation Study of Vitamin C and Glutathione Liquid Sachet · Recruiting · No phase · 30 people · 2026-01-24 to 2026-05-18Effect of Double Nutri® Liposomal Encapsulation Technology on Human Absorption of Vitamin C and Glutathione Liquid Sachet · Completed · No phase · 20 people · 2025-12-15 to 2026-01-16The Impact of Qualia Gluthathione+ on Blood Glutathione Levels · Completed · No phase · 56 people · 2025-11-30 to 2025-12-22Clinical Study to Assess Safety, Efficacy and In-Use Tolerability of Oziva Bioactive Gluta Fizzy Effervescent Tablets on Subjects With Facial Dark Spots Such as Pimple Marks, Sunspots, Age Spots and Uneven Skin Tone · Completed · No phase · 62 people · 2025-09-02 to 2026-04-15Gingival Hyperpigmentation Treatment · Recruiting · Phase 2 · 30 people · 2025-08-01 to 2027-01Comparison of Gingival Depigmentation Using Microneedling and Microneedling With Glutathione Gel - A Split Mouth Clinical Trial · Completed · No phase · 15 people · 2025-06-25 to 2025-12-28Glucocorticoids for Acute Drug Induced Liver Injury With Hyperbilirubinemia · Recruiting · No phase · 232 people · 2025-06-24 to 2027-03-31Randomized Trial of Glutathione With Anti-PD-1 and Chemotherapy in Advanced NSCLC · Recruiting · Phase 1 · 80 people · 2025-06-01 to 2026-12-31The Role of Glutathione Deficiency and MSIDS Variables in Long COVID-19 · Stopped or withdrawn · Early phase 1 · 2025-06 to 2025-09Ultrasound-Enhanced Delivery of Compound TXA Solution in Melasma · Recruiting · No phase · 35 people · 2024-10-20 to 2026-02-07Prevent Cardiac Surgery Associated AKI Trial · Recruiting · Phase 2 · 242 people · 2024-07-18 to 2027-06-17The Impact of Oral Glutathione on Oxidative Damage and Glycated Hemoglobin (HbA1c) Levels in Type 2 Diabetes Patients · Completed · No phase · 217 people · 2023-06-20 to 2024-01-30Pharmacokinetics and Safety of a New Micellar Glutathione Formulation · Completed · No phase · 16 people · 2022-06-21 to 2025-06-30Glutathione (GSH) Supplementation After Hospitalization · Stopped or withdrawn · No phase · 2022-02 to 2023-02Effect of Glutathione vs KI in Reducing SDF Staining When Used in Treatment of Primary Carious Teeth · Status unknown · No phase · 60 people · 2021-05-01 to 2021-08-01Evaluation of the Relationship Between Oxidative Stress and Human Reproduction · Status unknown · No phase · 80 people · 2021-02-14 to 2022-12-31Glutathione-rich Foods for Type 2 Diabetes · Completed · No phase · 12 people · 2020-07-28 to 2021-04-02Effect of 4 Weeks of Citrulline and Glutathione Supplementation on Arterial Function · Completed · No phase · 39 people · 2020-07-01 to 2022-04-27SH-SS and GSH-GSSG Homeostasis in Post-stroke Patients · Completed · No phase · 77 people · 2020-07-01 to 2021-01-01Treatment of Patients With Periorbital Hyperpigmentation · Completed · No phase · 31 people · 2020-02-12 to 2020-10-10A Study of Glutathione in Children With Autism Spectrum Disorder · Stopped or withdrawn · Phase 4 · 6 people · 2019-07-01 to 2023-08-15Effects of Glutathione on Immunity in Individuals Training for a Marathon · Completed · No phase · 84 people · 2018-10-29 to 2020-05-01Oral Glutathione As A Skin Whitening Agent · Completed · Phase 1 · 90 people · 2018-04-08 to 2018-06-06The Role of Oral Glutathione on Growth Parameters in Children With Cystic Fibrosis · Completed · Phase 2 · 60 people · 2017-06-14 to 2018-12-12The Production of Reactive Oxygen Species in Response to Glutathione Supplementation and Acute Exercise · Completed · No phase · 20 people · 2016-05 to 2017-12Glutathione vs. Curcumin Clinical Trial · Status unknown · Phase 1, Phase 2 · 75 people · 2016-04 to 2019-08Dual Hypothermic Oxygenated Perfusion of DCD Liver Grafts in Preventing Biliary Complications After Transplantation · Completed · Phase 3 · 157 people · 2016-01 to 2020-01Oral Glutathione Supplementation in Older Healthy Adults and Its Effect on the Number of Healthy Days Experienced During Four Months of Supplementation Compared to Placebo · Completed · No phase · 124 people · 2015-10 to 2016-06GSH Supplementation on Cold/Flu Symptoms in Older Healthy Adults · Stopped or withdrawn · No phase · 2015-05 to 2015-05Phase IIb Study of Intranasal Glutathione in Parkinson's Disease · Completed · Phase 2 · 45 people · 2015-04 to 2016-03Vitamin B-6 and Glutathione on Inflammation, Homocysteine, Oxidative Stress and Antioxidant Capacities · Status unknown · No phase · 25 people · 2014-12 to 2016-12CNS Uptake of Intranasal Glutathione · Completed · Phase 1 · 15 people · 2014-12 to 2015-03Oral Liposomal Glutathione Supplementation in Healthy Subjects · Completed · No phase · 12 people · 2014-11 to 2015-04Combined Drug Approach to Prevent Ischemia-reperfusion Injury During Transplantation of Livers (CAPITL) · Completed · Phase 2 · 143 people · 2014-09 to 2019-02Biological Evaluation of Dietary Supplement Liposomal Glutathione · Completed · No phase · 11 people · 2014-04 to 2021-02
RecruitingRunningCompletedStopped or withdrawnStatus unknownTodayNewest 40 of 57 trials

Where trials are recruiting

Countries with sites in trials that are recruiting now.

Recruiting now 11

S-Acetyl Glutathione and Performance Recovery in Soccer

Not yet recruiting20 peopleRandomizedUniversity of Thessaly2026-09-01 → 2026-12-20🇬🇷 Greece

Studying: Performance Recovery, Exercise-induced Inflammation, Exercise-induced Oxidative Stress · NCT07690124

About this trial

Soccer players display elevated inflammatory and oxidative stress markers combined with reduced soccer specific performance over a 72-hour period. However, in modern soccer, players participate very often in 2 or 3 matches within a week, with a recovery period of 72 hours between successive matches, that is insufficient to restore skeletal muscle homeostasis and performance. Of note, reduced glutathione (GSH) levels, a tripeptide consisting of the amino acids cysteine, glycine and glutamic acid, are substantially reduced during the 72-hour recovery period after a match because of the trauma-re…

GAIP ASD Research Study

RecruitingPhase 1100 peopleRandomizedGreater Atlanta Integrative Pediatrics2026-06-01 → 2026-12-31🇺🇸 United States

Studying: Autism Spectrum Disorder, Autism, ASD, Autism Spectrum Disorder (ASD) · NCT07622316

About this trial

This clinical research study evaluates the safety and preliminary effects of AdiaVita (umbilical cord blood-derived stem cells and exosomes) combined with glutathione versus glutathione alone in people aged 3 and older with Autism Spectrum Disorder (ASD). In this randomized, participant-blinded crossover trial of about 100 participants, one group receives three monthly AdiaVita IV infusions plus glutathione, while the control group gets placebo saline infusions with the same glutathione regimen; the primary outcome is improvement on Autism Treatment Evaluation Checklist (ATEC) scores, with ful…

Adia Med of Winter Park LLC Chronic Kidney Disease Research Study

RecruitingPhase 1100 peopleRandomizedAdia Med of Winter Park LLC2026-05-18 → 2028-01🇺🇸 United States

Studying: Chronic Kidney Disease, Kidney Disease, Kidney Disease, Chronic, Chronic Kidney Disease (CKD) · NCT07572890

About this trial

The goal of this clinical trial is to learn whether a new regenerative treatment called AdiaVita, made from umbilical cord blood-derived stem cells and exosomes combined with glutathione, is safe and can help improve kidney function in adults with chronic kidney disease (CKD). In this condition, the kidneys gradually lose their ability to filter blood as well as they should. The main questions it aims to answer are whether AdiaVita plus glutathione improves kidney function better than control treatments, as measured by blood tests for estimated glomerular filtration rate (eGFR) and creatinine …

Adia Med of Winter Park LLC Autism Spectrum Disorder Research Study

RecruitingPhase 1100 peopleRandomizedAdia Med of Winter Park LLC2026-05-01 → 2028-06-15🇺🇸 United States

Studying: Autism Spectrum Disorder, Autism, ASD, Autism Spectrum Disorder (ASD) · NCT07304440

About this trial

This 12-month study tests whether AdiaVita (umbilical cord blood-derived stem cells and exosomes) plus glutathione improves autism symptoms more than glutathione alone in children ages 3-12. About 100 children with confirmed autism will be randomly assigned to one of two groups. One group receives monthly IV AdiaVita plus IV glutathione for 3 months. The other group receives IV glutathione plus a saline placebo infusion for 2 months. Both groups also use a topical glutathione spray twice a day at home. Symptoms are tracked with the Autism Treatment Evaluation Checklist (ATEC), completed by a p…

Efficacy Evaluation Study of Vitamin C and Glutathione Liquid Sachet

Recruiting30 peopleRandomizedTCI Co., Ltd.2026-01-24 → 2026-05-18🇹🇼 Taiwan

Studying: Skin Condition, Anti-Oxidative Stress · NCT07379216

About this trial

The objective of this study is to evaluate the effect of liquid vitamin C and glutathione supplements on human skin condition improvement and anti-oxidation.

Gingival Hyperpigmentation Treatment

RecruitingPhase 230 peopleRandomizedCairo University2025-08-01 → 2027-01🇪🇬 Egypt

Studying: Gingival Pigmentation, Depigmentation, Vitamin C, Glutathione · NCT07595705

About this trial

It is a clinical study conducted to evaluate the effect of vitamin C and Glucathonine injection of pigmented gingival tissue versus surgical removal by scalpel

Glucocorticoids for Acute Drug Induced Liver Injury With Hyperbilirubinemia

Recruiting232 peopleRandomizedGeneral Hospital of Shenyang Military Region2025-06-24 → 2027-03-31🇨🇳 China

Studying: Drug Induced Liver Injury · NCT06922669

About this trial

Drug-induced liver injury (DILI) can lead to potentially fatal complications, such as acute liver failure and even death. In clinical practice, glucocorticoids have been considered in some cases of DILI, especially patients with hyperbilirubinemia. However, the available evidence remains controversial and its quality is also very limited. Herein, a multicenter randomized controlled trial (RCT) has been designed to explore the efficacy and safety of glucocorticoids in patients with acute DILI and hyperbilirubinemia.

Randomized Trial of Glutathione With Anti-PD-1 and Chemotherapy in Advanced NSCLC

RecruitingPhase 180 peopleRandomizedThe First Affiliated Hospital of Zhengzhou University2025-06-01 → 2026-12-31🇨🇳 China

Studying: Non-Small Cell Lung Cancer, Chemotherapy, PD1 Antibody, Glutathione · NCT06896422

About this trial

Chemotherapeutic agents exert significant immunomodulatory effects by influencing tumor-infiltrating immune cells. However, the sequence and combination of chemotherapy regimens differentially modulate immune cell dynamics, ultimately impacting treatment efficacy and patient survival. Glutathione, a critical bioactive molecule, demonstrates broad potential in tumor immunotherapy. Through mechanisms such as scavenging free radicals, modulating immune cell proliferation and differentiation, and regulating cytokine expression, glutathione achieves precise modulation of immune responses to enhance…

Ultrasound-Enhanced Delivery of Compound TXA Solution in Melasma

Recruiting35 peopleRandomizedThe First Affiliated Hospital with Nanjing Medical University2024-10-20 → 2026-02-07🇨🇳 China

Studying: Melasma (Facial Melasma) · NCT07202156

About this trial

Melasma is a localized, acquired hyperpigmentary skin disorder characterized by well-defined, light to dark brown patches. Based on clinical practice and extensive literature reports, tranexamic acid and reduced Glutathione (GSH) are both applied in the treatment of melasma, but their water-soluble nature presents challenges for transdermal absorption. Our preliminary basic and clinical research has demonstrated that ultrasound-assisted delivery significantly enhances the absorption of tranexamic acid and other water-soluble components. Its effect on the skin barrier is temporary and reversibl…

Prevent Cardiac Surgery Associated AKI Trial

RecruitingPhase 2242 peopleRandomizedGeorge Washington University2024-07-18 → 2027-06-17🇺🇸 United States

Studying: Renal Failure, Coronary Artery Disease, Surgery, Surgery-Complications · NCT06620523

About this trial

Prevent CSA-AKI (Cardiac Surgery Associated Acute Kidney Injury) trial is a double blinded randomized controlled trial, 242 patients undergoing elective cardiopulmonary bypass surgery (CPB)will either receive a placebo or daily 1200 mg of Co enzyme Q10 (CoQ10) and 1000 mg of Glutathione (GSH), the first dose will be given the day before surgery and continues while admitted up to 1 week. Blood and urine samples will be collected. Adverse events related to the study drugs will be collected.

Completed 36

Glutathione in Preventing Peripheral Neuropathy Caused by Paclitaxel and Carboplatin in Patients With Ovarian Cancer, Fallopian Tube Cancer, and/or Primary Peritoneal Cancer

CompletedPhase 3195 peopleRandomizedAlliance for Clinical Trials in Oncology2009-12 → 2012-08🇺🇸 United StatesResults posted

Studying: Chemotherapeutic Agent Toxicity, Neuropathy, Neurotoxicity Syndrome, Pain · NCT02311907

About this trial

This randomized phase III trial is studying glutathione to see how well it works in preventing peripheral neuropathy caused by paclitaxel and carboplatin in patients with ovarian cancer, fallopian tube cancer, and/or primary peritoneal cancer. Drugs used in chemotherapy work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Chemoprotective drugs, such as glutathione, may help prevent peripheral neuropathy caused by paclitaxel and carboplatin. It is not yet known whether glutathione is more effective than a placebo in preventing…

Combined Drug Approach to Prevent Ischemia-reperfusion Injury During Transplantation of Livers (CAPITL)

CompletedPhase 2143 peopleRandomizedUniversitaire Ziekenhuizen KU Leuven2014-09 → 2019-02🇧🇪 BelgiumResults posted

Studying: Reperfusion Injury · NCT02251041

About this trial

The purpose of this study is to establish the effectiveness of the combined drug approach (anti-thrombin III, infliximab, apotransferrin, human recombinant erythropoietin beta, C1-inhibitor, glutathione, alfa-tocopherol, melatonin and epoprostenol)aimed to reduce ischemia-reperfusion injury during liver transplantation in eligible recipients.

The Role of Oral Glutathione on Growth Parameters in Children With Cystic Fibrosis

CompletedPhase 260 peopleRandomizedUniversity of Minnesota2017-06-14 → 2018-12-12🇺🇸 United StatesResults posted

Studying: Cystic Fibrosis · NCT03020719

About this trial

The purpose of this randomized, placebo-controlled (Phase II) study will be to further evaluate the effects of oral glutathione on growth in children with CF.

Supplementation of Oral Reduced Glutathione in Pediatric Cystic Fibrosis Patients

Completed47 peopleRandomizedClark Bishop2011-03 → 2012-03🇮🇹 ItalyResults posted

Studying: Cystic Fibrosis · NCT02029521

About this trial

Many individuals with cystic fibrosis experience growth failure. The reasons are not clear, but inflammation of the gut in these patients seems to be one important reason. Glutathione is important to normal function of the intestine and lungs. Glutathione functions to decrease inflammation and to thin mucus. However, in cystic fibrosis, glutathione gets trapped inside of cells, so it cannot travel to the surface of the cells and perform its proper function. Moreover, glutathione has been shown to improve nutritional status in patients with AIDS and cancer. Investigators hypothesize that suppl…

Glutathione and Health With Post-Polio Syndrome

Completed20 peopleUniversity of Michigan2011-08 → 2013-04🇺🇸 United StatesResults posted

Studying: Post-polio Syndrome, Physical Activity, Depression, Pain · NCT01402570

About this trial

In this study, people who have symptoms of post polio will take oral glutathione supplements for three months. Their levels of fatigue, physical activity and sleep efficiency will be assessed.

Polymorphism of Oxidative Stress Genes in the Pathogenesis and Antioxidant Prevention of Contrast Induced Nephropathy

Completed1,000 peopleRandomizedHuashan Hospital2010-03 → 2011-03🇨🇳 China

Studying: Nephropathy, Oxidative Stress · NCT01142024

About this trial

With the wide use of contrast agents in clinical diagnosis and treatment, contrast induced nephropathy(CIN) accounts for 1/3 of hospital acquired acute renal failure.The mortality rate of patients with CIN is up to 35%,and about 30% patients with permanent renal dysfunction.Prevention and treatment of this iatrogenic complication and reducing morbidity has become an urgent task to every medical worker. Now the pathogenesis of CIN is not clear,while the toxicity of renal tubular epithelial cell and the hypoxia of renal medullary is likely to be the main mechanism of CIN.Iodine contrast agent c…

The Impact of Oral Glutathione on Oxidative Damage and Glycated Hemoglobin (HbA1c) Levels in Type 2 Diabetes Patients

Completed217 peopleRandomizedS.LAB (SOLOWAYS)2023-06-20 → 2024-01-30🇷🇺 Russia

Studying: Type 2 Diabetes · NCT06313164

About this trial

This trial aims to assess the effectiveness of L-glutathione, supplemented with bioavailability boosters (tannin, low molecular weight chitosan, and polyethylene glycol), on improving antioxidant levels and glycemic control in patients with type 2 diabetes (T2D). The study is designed as a randomized, double-blind, placebo-controlled trial intending to enroll 240 T2D patients. The primary objective is to measure changes from baseline to 180 days in several key biomarkers, including endogenous reduced glutathione (GSH), oxidized glutathione (GSSG), 8-hydroxydeoxyguanosine (8-OHdG), and glycated…

Dual Hypothermic Oxygenated Perfusion of DCD Liver Grafts in Preventing Biliary Complications After Transplantation

CompletedPhase 3157 peopleRandomizedRobert J. Porte2016-01 → 2020-01🇧🇪🇳🇱🇬🇧 Belgium, Netherlands, United Kingdom

Studying: Liver Failure, End Stage Liver Disease, Biliary Tract Diseases · NCT02584283

About this trial

Rationale: Recent publications report good results of controlled donation after circulatory death (DCD) Maastricht category III liver transplantation when strict donor-recipient matching is applied and ischemia times are kept to a minimum. However a major concern remains the high rate of biliary complications after transplantation of DCD livers. Non-anastomotic biliary strictures (NAS) occur in 29% of patients receiving a DCD graft whereas the incidence of NAS in recipients of donation after brain death (DBD) liver grafts is 11%. NAS are associated with higher morbidity and increased cost of l…

Efficacy and Safety Study of Inhaled Glutathione in Cystic Fibrosis Patients

CompletedPhase 2153 peopleRandomizedMukoviszidose Institut gGmbH2007-07 → 2010-05🇩🇪 Germany

Studying: Cystic Fibrosis · NCT00506688

About this trial

The majority of cystic fibrosis (CF) patients die from a progressive pulmonary disease.Airway inflammation plays a major role for the pathogenesis of CF lung disease, and ultimately leads to lung destruction. The release of oxidants during the inflammation process leads to a chronic imbalance of oxidants and antioxidants and may be a central component leading to irreversible lung damage in CF patients. The antioxidant glutathione, which is a naturally occurring tripeptide, is depleted in the extracellular epithelial lining fluid of the CF lung. The elevation of reduced level to normal and also…

RayGel-An Alternative for Skin Care During External Beam Radiation

CompletedPhase 2150 peopleRandomizedNathalie Johnson2004-10 → 2011-05🇺🇸 United States

Studying: Breast Cancer · NCT00266331

About this trial

This study is for the patient with breast cancer. To take part in this study, external beam radiation therapy needs to be part of the treatment plan. Reduced glutathione, an ingredient of RayGel™, has been helpful in decreasing some radiation therapy side effects to the skin. Reduced glutathione plays a vital role in both making DNA and cell repair. This study will measure if RayGel decreases skin reaction in breast cancer patients treated with external beam radiation therapy.

Oral Glutathione Supplementation in Older Healthy Adults and Its Effect on the Number of Healthy Days Experienced During Four Months of Supplementation Compared to Placebo

Completed124 peopleRandomizedUniversity of Florida2015-10 → 2016-06🇺🇸 United States

Studying: Improvement in Immune Cell Function in Elderly Humans · NCT02438956

About this trial

A randomized, double blind placebo-controlled parallel intervention in adults over the age of 50 will be performed. Participants will receive a supplement capsule containing placebo (Crystalline Cellulose) or 500mg of Setria® Glutathione to eat for 120 days. Glutathione is hypothesized to replenish the body's reserves that may be depleted through natural aging process, poor diet, or due to the detoxification process for drugs. The primary end point is the number of healthy days experienced during the duration of the study. Secondary endpoints include cellular and biochemical measures from bloo…

Effect of Glutathione on Blood Alcohol and Hangover Symptoms

Completed100 peopleRandomizedPiyavate Hospital2005-06 → 2005-08🇹🇭 Thailand

Studying: Alcohol Drinking · NCT00127309

About this trial

Glutathione (a tripeptide of 3 amino acids - glutamic acid, cysteine and glycine) plays a great role in homeostasis, especially as a potent anti-oxidant. As an anti-oxidant, it conjugates with xenobiotics using glutathione-S-transferase (GST) and excretes in urine as mercapturic acid. In 1986, Casciani et al at the University of Milan, studied the effect of glutathione on blood alcohol, acetaldehyde and hepatic triglyceride levels and found a significant reducing effect. The blood acetaldehyde, which is the metabolic product of ethyl alcohol may have a correlation with hangover symptoms. Th…

Effects of Orotic Acid Derivatives With or Without Glutathione on Allergic Rhinitis

Completed100 peopleRandomizedUniversity of Mississippi Medical Center2005-01 → 2005-11🇺🇸 United States

Studying: Seasonal Allergic Rhinitis · NCT00227058

About this trial

The purpose of this study is to learn if two nutritional supplements, Orotic Acid and Glutathione will have any effect on the immune system response and if there will be any effect on the symptoms of seasonal allergies. It is our thinking that they will have an positive effect.

Oral Glutathione As A Skin Whitening Agent

CompletedPhase 190 peopleRandomizedDr Irma Bernadette S Sitohang2018-04-08 → 2018-06-06🇮🇩 Indonesia

Studying: Glutathione, Skin Whitening · NCT04105504

About this trial

The objective of the study was to evaluate the efficacy and safety of oral glutathione for 12 weeks, used as a skin-whitening agent. The study was a randomized, double-blind, placebo-controlled, multicenter study, set at Dermatology outpatient clinic at three different hospitals in Indonesia, Gatot Seobroto Army Hospital Jakarta, Dr. dr. Wahiddin Soedirohoesodo Hospital Makassar, and University of Sumatera Utara Teaching Hospital Medan. Ninety healthy females, aged between 33 and 50 years, were randomized to receive either glutathione capsules or placebo for 12 weeks and evaluated every 4 week…

Effects of Glutathione on Immunity in Individuals Training for a Marathon

Completed84 peopleRandomizedUniversity of North Texas, Denton, TX2018-10-29 → 2020-05-01🇺🇸 United States

Studying: Healthy · NCT03725241

About this trial

The aim of this study is to determine the effects of glutathione supplement on the immune cell response and symptomatology of upper respiratory health, and antioxidant capacity in healthy people in exercise-induced model.

Effects of Glutathione (an Antioxidant) and N-Acetylcysteine on Inflammation

Completed78 peopleRandomizedStanford University2011-06 → 2012-07🇺🇸 United States

Studying: Obesity, Hyperlipidemia, Insulin Resistance, Hypertension · NCT01550432

About this trial

The rationale for the potential role of antioxidants in the prevention of cardiovascular diseases (CVD) remains strong despite the disappointing results of recent trials with a few select antioxidant vitamins. Glutathione (GSH) is one of the body's most powerful antioxidant agents but there is a surprising paucity of data on its use as an interventional therapy. Glutathione, when taken orally, is immediately broken down into its constituent amino acids, of which cysteine is the only one to be essential. Available cysteine is the critical determinant of intracellular GSH concentrations. N-acet…

SH-SS and GSH-GSSG Homeostasis in Post-stroke Patients

Completed77 peopleAbant Izzet Baysal University2020-07-01 → 2021-01-01🌐 Turkey (Türkiye)

Studying: Stroke · NCT04884555

About this trial

In patients undergoing physical therapy after stroke, extracellular thiol-disulfide balance and intracellular oxidized-reduced glutathione balance levels will be monitored. The main objectives of this study are; (1) to determine the differences between thiol-disulfide and GSH-GSSG balances in stroke patients compared to healthy volunteers, (2) to evaluate the relationship of these balances with the severity of stroke, (3) to determine the predictive value of the levels of these balances on clinical prognosis and functional recovery outcomes, and (4) to investigate and to examine the effects of…

Clinical Study to Assess Safety, Efficacy and In-Use Tolerability of Oziva Bioactive Gluta Fizzy Effervescent Tablets on Subjects With Facial Dark Spots Such as Pimple Marks, Sunspots, Age Spots and Uneven Skin Tone

Completed62 peopleRandomizedNovoBliss Research Pvt Ltd2025-09-02 → 2026-04-15🇮🇳 India

Studying: Hyperpigmentation · NCT07162623

About this trial

This is a randomized, double-blinded, single-centre, two-arms, placebo-controlled, prospective study to evaluate clinical safety, efficacy and in-use tolerability of Test Product i.e. Oziva Bioactive Gluta Fizzy Effervescent tablets in subjects with facial hyperpigmentation and dark spots.

Oral Glutathione Supplementation on the Levels of Blood Glutathione

Completed61 peopleRandomizedMilton S. Hershey Medical Center2010-02 → 2011-09🇺🇸 United States

Studying: Healthy Adults · NCT01044277

About this trial

This trial is designed to provide evidence of the efficacy of glutathione supplementation and health(GSH) and includes the assessment of both short term and long term effects. Based on previous laboratory animal studies and clinical data, the investigators anticipate that the effects of oral GSH supplementation will be progressive and cumulative. The study will also allow for the evaluation of effects of withdrawal of the supplement on the outcome variables.

Role of Oral Glutathione in Skin Whitening

CompletedPhase 160 peopleRandomizedChulalongkorn University2009-02 → 2009-05🇹🇭 Thailand

Studying: Skin Whitening · NCT01016080

About this trial

Oral and intravenous glutathione have been used widely to whiten the skin. The investigators tested this hypothesis by giving oral glutathione for 4 weeks to medical students.

The Impact of Qualia Gluthathione+ on Blood Glutathione Levels

Completed56 peopleQualia Life Sciences2025-11-30 → 2025-12-22🇺🇸 United States

Studying: Effects of Qualia Glutathione+ on Blood Glutathione Levels, Glutathione · NCT07221955

About this trial

This is a double-blind, placebo-controlled, parallel-group, triple-armed, study evaluating the effects of two distinct Qualia Glutathione+ formulations on Whole Blood Glutathione levels in the blood of healthy adults aged 45-75 years. Approximately 18 participants will be assigned to one of three study arms: Qualia Glutathione+ version 1, Qualia Glutathione+ version 2, or placebo. Each participant will take two or three capsules of their assigned product once daily in the morning, with or without food, over a 20-day period. The primary outcome is the change in blood glutathione levels, assesse…

Phase IIb Study of Intranasal Glutathione in Parkinson's Disease

CompletedPhase 245 peopleRandomizedBastyr University2015-04 → 2016-03🇺🇸 United States

Studying: Parkinson's Disease · NCT02424708

About this trial

Glutathione is an important nutrient for brain function and loss of glutathione has been implicated in Parkinson's disease. Glutathione is an antioxidant made in the body out of three amino acids, the nutrients that make up protein. This study will determine whether administration of either dose of glutathione, as a nasal spray, improves PD symptoms over time in a population of individuals with Parkinson's disease (PD).

Intranasal Glutathione in Parkinson's Disease

CompletedPhase 134 peopleRandomizedBastyr University2012-07 → 2016-01🇺🇸 United States

Studying: Parkinson's Disease (PD) · NCT01398748

About this trial

Excessive free radical formation and depletion of the brain's primary antioxidant, glutathione, are established components of Parkinson's disease (PD) pathophysiology. While there is rationale for the therapeutic use of reduced glutathione (GSH) in PD, and even some preliminary evidence to suggest the use of GSH can lead to symptomatic improvement, obstacles surrounding currently employed delivery methods have hindered the clinical utility of this therapy. Intranasal GSH, (in)GSH, is a novel method of delivery for this popular CAM therapy in patients with PD, and bypasses the obstacles associa…

Glutathione and Its Precursors in HIV-Infected Patients

CompletedPhase 232 peopleRandomizedUPECLIN HC FM Botucatu Unesp2002-02 → 2007-02

Studying: HIV Infection · NCT00910442

About this trial

The aim of this study is to investigate the responses of the serum amyloid A (SAA) pathway to dietary supplements of glutamine (Gln) and cysteine (Cys) together with methionine (Met)-overloading in HIV+ patients comparatively to healthy controls.

Treatment of Patients With Periorbital Hyperpigmentation

Completed31 peopleSohag University2020-02-12 → 2020-10-10🇪🇬 Egypt

Studying: Periorbital Hypermelanosis · NCT04389788

About this trial

Periorbital hyperpigmentation (POH) is a common condition in dermatology practice. Periorbital hyperpigmentation is defined as bilateral, round, homogeneous pigmented macules.The etiology of POH is multifactorial including genetic and enviromental factors. Many treatment options are avaiblabe with variable efficacy and safety in different patients. Therefore, the investigator's study aims to evaluate the efficacy and safety of combined microneedling with topical Glutathione versus Carboxy Therapy in treatment of patients with periorbital hyperpigmentation.

Study of Glutathione, Vitamin C and Cysteine in Children With Autism and Severe Behavior Problems

Completed24 peopleRandomizedUniversity of Louisville2009-04 → 2012-09🇺🇸 United States

Studying: Autism, Severe Behavior Disorder · NCT00889538

About this trial

This is a double-blind, placebo-controlled crossover study to evaluate the safety and efficacy of glutathione alone or glutathione, vitamin C and NAC treatment in children with autism who also have severe behavior problems. The investigators hypothesis is that children with autism will show improvement in both learning capabilities and behavior with either glutathione, or glutathione, vitamin C and NAC therapy.

The Production of Reactive Oxygen Species in Response to Glutathione Supplementation and Acute Exercise

Completed20 peopleRandomizedUniversity of Copenhagen2016-05 → 2017-12🇩🇰 Denmark

Studying: Type 2 Diabetes, Oxidative Stress, Mitochondrial Reactive Oxygen Species Production · NCT02948673

About this trial

Objectives: The research focus of the study is the production of reactive oxygen species (ROS) in patients with type 2 diabetes (T2D) in response to glutathione (GSH) supplementation and in response to acute exercise. Oxidative stress is suggested as a possible causative factor in the pathophysiology of skeletal muscle insulin resistance. GSH is the most abundant endogenous antioxidant in the cell and thus, a crucial protector against oxidative stress and insulin resistance. It has been found that patients with T2D have a decreased level of GSH in plasma and that 1 h GSH infusion improves ske…

Glutathione (GSH) In The Treatment of Parkinson's Disease

CompletedPhase 220 peopleRandomizedUniversity of South Florida2003-09 → 2007-03🇺🇸 United States

Studying: Parkinson's Disease · NCT01177319

About this trial

This is an investigator initiated pilot study to examine the effects of GSH in PD. The goal of this study is to acquire some basic data regarding side effects and efficacy of this compound to determine if this is a possible treatment option that could be recommended to interested PD patients.

Pharmacokinetics and Safety of a New Micellar Glutathione Formulation

Completed16 peopleRandomizedFactors Group of Nutritional Companies Inc.2022-06-21 → 2025-06-30🇨🇦 Canada

Studying: Bioavailability Heathy Volunteers, Safety · NCT06345950

About this trial

This study seeks to determine the short-term effects of daily oral supplementation with a new micellar Glutathione formulation (LipoMicel) on the oral absorption and safety of glutathione in healthy volunteers. The primary objective of this study is to evaluate and compare the pharmacokinetics of a novel micellar Glutathione (GSH) formulation with that of a standard formulation as well as a liposomal GSH formulation. The secondary objective is to evaluate the safety of a new micellar GSH formulation with higher bioavailability in human participants over a 30-day study period.

Comparison of Gingival Depigmentation Using Microneedling and Microneedling With Glutathione Gel - A Split Mouth Clinical Trial

Completed15 peopleRandomizedKrishnadevaraya College of Dental Sciences & Hospital2025-06-25 → 2025-12-28🇮🇳 India

Studying: Gingiival Hyperpigmentation · NCT07748507

About this trial

The colour of gingiva is important determinant of smile esthetics.Owing to increasing awareness and demand for cosmetic procedures over the past decade, gingival depigmentation has gained popularity among periodontal plastic surgical procedures.

CNS Uptake of Intranasal Glutathione

CompletedPhase 115 peopleUniversity of Washington2014-12 → 2015-03🇺🇸 United States

Studying: Parkinson's Disease · NCT02324426

About this trial

Excessive free radical formation and depletion of the brain's primary antioxidant, glutathione, are established components of Parkinson's disease (PD) pathophysiology. While there is rationale for the therapeutic use of reduced glutathione (GSH) in PD, and even some preliminary evidence to suggest the use of GSH can lead to symptomatic improvement, obstacles surrounding currently employed delivery methods have hindered the clinical utility of this therapy. Intranasal GSH, (in)GSH, is a novel method of glutathione augmentation. The aim of this study is to evaluate whether 200 mg of (in)GSH resu…

Glutathione-rich Foods for Type 2 Diabetes

Completed12 peopleRandomizedUniversity of California, San Diego2020-07-28 → 2021-04-02🇺🇸 United States

Studying: Type 2 Diabetes · NCT04386187

About this trial

The purpose of this research study is to find out whether certain plant-based foods may be beneficial for individuals with type 2 diabetes. To meet the goal, study participants will be fed known amounts of foods and nutrients. Before and after participants have eaten the food, they will self-measure height, weight, and waist circumference and study staff will administer questionnaires. Blood samples will be taken at a local lab to measure blood sugar and blood lipids.All study appointments will be conducted online.

Oral Liposomal Glutathione Supplementation in Healthy Subjects

Completed12 peopleRandomizedMilton S. Hershey Medical Center2014-11 → 2015-04🇺🇸 United States

Studying: Healthy · NCT02278822

About this trial

This trial is designed to provide evidence of the efficacy of liposomal glutathione supplementation on healthy adults. The investigators anticipate that liposomal glutathione supplementation will enhance the levels of blood glutathione and improve the immune functions.

Biological Evaluation of Dietary Supplement Liposomal Glutathione

Completed11 peopleRandomizedUniversity of Maryland, Baltimore2014-04 → 2021-02🇺🇸 United States

Studying: Schizophrenia · NCT01967667

About this trial

Low levels of antioxidant molecules such as glutathione have been found in people with a diagnosis of schizophrenia. However, oral glutathione is not well absorbed because the compound is mostly broken down in the gastrointestinal system. Liposomes are tiny droplets of oil particles that encapsulate and protect the glutathione. In this study we will evaluate a liposomal formulation of glutathione for tolerability and to examine if this formulation serves the function of increasing glutathione in the brain and body.

Stopped early or withdrawn 4

The Role of Glutathione Deficiency and MSIDS Variables in Long COVID-19

WithdrawnEarly phase 1RandomizedUniversity of California, Irvine2025-06 → 2025-09🇺🇸 United States

Studying: COVID-19 · NCT05371288

About this trial

The purpose of this research study is to assess if glutathione, along with NAC (N-acetyl cysteine) and Alpha lipoic acid (ALA), can help reverse some of the COVID long-haul symptoms.Subjects will be randomized in to one of two groups. Depending on the group they are randomized in to, subjects will be taking either a combination of NAC, Alamax CR, and liposomal GSH or the same three nutritional supplements with a multivitamin and magnesium. Regardless of the group, subjects will be asked questions to assess their COVID symptoms, physical and mental health status. They will also be asked to take…

Glutathione (GSH) Supplementation After Hospitalization

WithdrawnRandomizedEmory University2022-02 → 2023-02

Studying: Malnutrition · NCT03166371

About this trial

The purpose of this study is to see if oral liquid glutathione treatment, has any effect on improving health-related cellular protection, muscle size and strength, and fatigue, weakness, and quality of life in older adults with a history of malnutrition who have been hospitalized. Persons enrolled in this study will be those initially admitted to Emory University Hospital (EUH) in Atlanta, GA, but recovering and ready to be discharged home or to an assisted living facility to eat an oral diet. A combination of nutritional measures, blood markers and imaging tools will assess body composition. …

A Study of Glutathione in Children With Autism Spectrum Disorder

TerminatedPhase 46 peopleUniversity of Chicago2019-07-01 → 2023-08-15🇺🇸 United StatesResults posted

Studying: Autism Spectrum Disorder · NCT05954052

About this trial

The aim of this study is to investigate if taking a supplement called Glutathione by mouth is safe and practical for children and teenagers with Autism Spectrum Disorder (ASD). The researchers plan to involve 24 individuals with ASD and give them oral Glutathione for 12 weeks.

GSH Supplementation on Cold/Flu Symptoms in Older Healthy Adults

WithdrawnRandomizedUniversity of Florida2015-05 → 2015-05

Studying: Improvement in Immune Cell Function in Elderly Humans · NCT02316925

About this trial

A randomized, double blind placebo-controlled parallel intervention in adults over the age of 50 will be performed. Participants will receive a supplement capsule containing placebo (Crystalline Cellulose) or 500mg of Setria® Glutathione to eat for 120 days. Glutathione is hypothesized to replenish the body's reserves that may be depleted through natural aging process, poor diet, or due to the detoxification process for drugs. The primary end point is the number of healthy days experienced during cold and flu season. Secondary endpoints include cellular and biochemical measures from blood samp…

Status unknown 6

Effect of Glutathione vs KI in Reducing SDF Staining When Used in Treatment of Primary Carious Teeth

Unknown status60 peopleRandomizedCairo University2021-05-01 → 2021-08-01

Studying: Discoloration, Tooth · NCT04816487

About this trial

Although black staining is considered a drawback that is clinically observed following SDF application and is the main primary barrier for its use clinically . Child's behaviour and cooperation cannot be controlled at a young age or in special health care needs cases. Therefore, the best treatment modality will always be a simple, fast and painless procedure and SDF is the best solution for those cases. Discolouration caused researchers to search for a solution that will reduce or prevent discolouration using KI and GSH. A systematic review was conducted in-vitro, and it showed the use of SDF …

Evaluation of the Relationship Between Oxidative Stress and Human Reproduction

Unknown status80 peopleCalla IVF Center2021-02-14 → 2022-12-31🇷🇴 Romania

Studying: IVF, Pregnancy, Oxidative Stress, Fertility Disorders · NCT05575739

About this trial

The aim of the study is to investigate the role of oxidative stress in female infertility and the relationship between the stress as it is illustrated by questionnaires, serum markers, follicular fluid markers, and ovarian response in assisted reproduction.

Glutathione vs. Curcumin Clinical Trial

Unknown statusPhase 1, Phase 275 peopleRandomizedSouth Florida Veterans Affairs Foundation for Research and Education2016-04 → 2019-08🇺🇸 United States

Studying: Gulf War Syndrome · NCT02848417

About this trial

The investigator proposes to perform a phase I/II study comparing two nutraceuticals and placebo that target mediators identified in the investigator's prior dynamic modeling study of Gulf War Illness (GWI). The investigator will repeat the dynamic modeling before treatment and on therapy to assess the modeling and the impact of the interventions on the homeostatic networks that have identified, with an added focus on the glutathione/redox system.

Vitamin B-6 and Glutathione on Inflammation, Homocysteine, Oxidative Stress and Antioxidant Capacities

Unknown status25 peopleRandomizedTaichung Veterans General Hospital2014-12 → 2016-12🇹🇼 Taiwan

Studying: Liver Cirrhosis, Liver Cancer · NCT02321579

About this trial

This study is designed as a hospital-based cross-sectional and randomized placebo-controlled intervention trial. One hundred and fifty patients with either cirrhosis or cirrhosis combined with hepatocellular carcinoma (HCC) who meet the inclusion criteria will be recruited from Taichung General Veterans Hospital. One hundred patients will be randomly assigned to either the 1) placebo group (n = 25); 2) vitamin B-6 group; (50 mg/d, n = 25); 3) glutathione (GSH) group (500 mg/d, n = 25); or 4) vitamin B-6 (50 mg/d) plus GSH (500 mg/d) group (n = 25) for 3 mo. Data on demography, anthropometry an…

Inhaled Glutathione (GSH) Versus Placebo in Cystic Fibrosis

Unknown statusPhase 3150 peopleRandomizedSerafino A. Marsico2010-06 → 2012-05🇮🇹 Italy

Studying: Cystic Fibrosis · NCT01450267

About this trial

Cystic fibrosis (CF) is the most common inherited disease among the Caucasian population with considerable morbidity and reduced life expectancy. Excessive oxidants released by activated inflammatory cells and persisting infections are considered the main mechanism of damage of respiratory epithelium in CF.Glutathione (GSH) represents the first-line defence of the lung against oxidative stress-induced cell injury; however, a depletion of its levels has been observed in the airways of patients affected by CF. In vitro studies have showed that CFTR protein plays a pivotal role in transmembrane …

Weekly Dosing of an Integrative Chemotherapy Combination to Treat Advanced Pancreatic Cancer

Unknown statusPhase 280 peopleSeattle Cancer Treatment and Wellness Center2006-05🇺🇸 United States

Studying: Adenocarincoma of Pancreas, Stage III Pancreatic Cancer, Stage IVA Pancreatic Cancer, Stage IVB Pancreatic Cancer · NCT00323583

About this trial

RATIONALE: Drugs used in chemotherapy, such as paclitaxel, oxaliplatin, leucovorin and 5-fluoruracil, work in different ways separately and in combination to stop tumor cells from dividing so they stop growing or die. The use of metronomic dosing of chemotherapy minimizes side effects and increases efficacy by anti-angiogenic effects. The pilot study demonstrated promising responses in all patients. It is not yet known how effective this drug and dosing combination is in treating advanced pancreatic cancer. PURPOSE: This non-randomized phase II trial is studying giving weekly doses of paclita…

Registered trials include ones that haven't published results yet. Trials are matched on the compound's name and code names (Glutathione, reduced glutathione) in the listed interventions.