The goal of this study is to evaluate the safety and tolerability of Gamma Glutamylcysteine (GGC) supplement at different doses (400mg/day or 800mg/day or 1200mg/day) when administered orally to patients with MCI over 3 months. This study is designed to generate preliminary clinical safety data to inform the feasibility and design of larger controlled trials.
Oxidative Stress (OS) plays a key role in aging and neurodegenerative diseases, including Alzheimer's Disease. The brain's primary antioxidant, GSH, is essential for combating Reactive Oxygen Species (ROS).This study is designed as an open-label, single-center, dose escalation clinical trial to evaluate the safety and tolerability of GGC supplementation in patients with MCI. This will enable the investigators to identify maximum tolerated or recommended dose for further clinical evaluation.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
9
400mg capsules once a day
400mg capsules orally (two times) per day
400mg capsules orally (three times) per day
UPMC Presbyterian Hospital
Pittsburgh, Pennsylvania, United States
RECRUITINGNo. of participants with abnormal kidney and liver function tests after 30 days of supplementation.
Safety: Creatinine not more than 1.5mg/dL, AST and ALT levels not more than 1.5 X ULN.
Time frame: 1 month
Number of participants with treatment-related adverse events with one dose of GGC as assessed by CTCAE.
Safety and Tolerability
Time frame: 3 months
Number of participants with treatment-related adverse events with two doses of GGC as assessed by CTCAE.
Safety and tolerability
Time frame: 3 months
Number of participants with treatment-related adverse events with three doses of GGC as assessed by CTCAE.
Safety and tolerabitily
Time frame: 3 months
Number of participants with abnormal laboratory test results after 3 months of GGC supplementation.
Safety and tolerability: The number of participants experiencing clinically significant abnormal laboratory test results (hematology, kidney, and liver function tests) during 3 months of GGC supplementation, compared with baseline.
Time frame: 3 months
Changes in baseline blood glutathione levels (µmol/l) in people with MCI due to GGC supplementation.
Time frame: 3.5 months
Changes in blood iron levels(ng/μl) in people with MCI due to GGC supplementation.
Time frame: 3.5 months
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