CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 60 enrolled
Drug / intervention
N Acetylcysteine +1 moredrug
Likely dose
N Acetylcysteine 600 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03306979
NCT03306979Phase 2Completed

Efficacy and Safety of N-acetylcysteine (NAC) in Patients With Mild Vascular Cognitive Impairment

Sunnybrook Health Sciences Centre·interventional·Posted Oct 11, 2017·Updated Mar 26, 2025

In Brief

A Phase 2 clinical trial evaluating N Acetylcysteine and Placebo oral capsule for Vascular Cognitive Impairment no Dementia. Completed, enrolled 60 participants across 1 site.

Detailed Summary

This is a 24-week randomized, double-blind, placebo-controlled parallel group design study involving Vascular cognitive impairment-no dementia (VCIND) patients to evaluate the efficacy and safety of oral NAC supplementation (2,400 mg daily) as an add-on therapy to improve cognitive function in patients undergoing cardiac rehabilitation (CR). The CR program consists of a harmonized aerobic and resistance training in a supervised group setting. Eligible patients will be randomized to receive NAC (four 600 mg capsules given as 2 capsules in the morning and 2 capsules in the evening) or matching placebo capsules. The initial NAC dosage will be 600mg/day (one 600mg capsule in the morning) for the first week, followed by 1,200 mg/day (one 600 mg capsule in the morning, one 600mg capsule in the evening) for the second week, followed by 1,800 mg/day (two 600mg capsules in the morning, one 600mg capsule in the evening) for third week, followed by 2,400mg/day (two 600mg capsules in the morning, two 600mg capsules in the evening) for the following 21 weeks.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCanada
Collaborators--

Timeline

Phase 2CompletedFinished
201820192020202120222023202420252026
First PostedOct 11, 2017
Enrollment StartApr 30, 2018
Primary CompletionSep 27, 2023
TodayJul 2, 2026
Enrollment to primary: 5.4 yearsPosted 8.7 years ago

Interventions

N Acetylcysteinedrug

Patients will be randomized to receive N Acetylcysteine (NAC) (four 600 mg capsules given as 2 capsules in the morning and 2 capsules in the evening). The initial NAC dosage will be 600mg/day (one 600mg capsule in the morning) for the first week, followed by 1,200 mg/day (one 600 mg capsule in the morning, one 600mg capsule in the evening) for the second week, followed by 1,800 mg/day (two 600mg capsules in the morning, one 600mg capsule in the evening) for third week, followed by 2,400mg/day (two 600mg capsules in the morning, two 600mg capsules in the evening) for the following 21 weeks.

Placebo oral capsuleother

Patients will receive four placebo capsules (lactose-based filler) given as 2 capsules in the morning and 2 capsules in the evening, which will be prepared to mimic the weight of the experimental capsules.The initial placebo dosage will be 600mg/day (one 600mg capsule in the morning) for the first week, followed by 1,200 mg/day (one 600 mg capsule in the morning, one 600mg capsule in the evening) for the second week, followed by 1,800 mg/day (two 600mg capsules in the morning, one 600mg capsule in the evening) for third week, followed by 2,400mg/day (two 600mg capsules in the morning, two 600mg capsules in the evening) for the following 21 weeks.