Danish Cooperative Study


Phase N/A Results

Trial Description

To determine if acetylsalicylic acid (ASA) would reduce stroke frequency and mortality in patients with reversible cerebral ischemic attacks.


Trial Design

Cooperative, double-blind, placebo-controlled, randomized trial of 203 patients at 6 centers.

Patient Involvement

Patients were randomized to receive treatment of either ASA 1000 mg daily or placebo. Follow-up visits took place every month initially and later at intervals of up to 6 months. Median follow-up period was 25 months.


Type Measure Time Frame Safety Issue
Primary Stroke or death.
Secondary Recurrence of transient ischemic attack, non-fatal myocardial infarction.


Danish Medical Research Council