Effect of Sarpogrelate on Platelet Aggregation in Patients With Cerebral Infarction: Dose-responsive Clinical Pharmacology Study


Phase 3 Results N/A

Trial Description

Sarpogrelate is an antiplatelet agent that decreases 5-hydroxytryptamine( 5-HT )levels in platelets via blockade of 5-HT2 receptors, has been used in atherosclerotic peripheral arterial disease.
The present double-blind controlled clinical pharmacology study was performed on 45 patients with cerebral infarction, who were given 75, 150, or 300 mg three times daily of sarpogrelate for 7 days in order to evaluate the dose-response relationship in terms of the precisely measured inhibition of platelet aggregation.



  • MCI-9042 Drug
    ARM 1: Kind: Experimental
    Label: group L
    Description: 25mg sarpogrelate
    ARM 2: Kind: Experimental
    Label: group M
    Description: 50mg sarpogrelate
    ARM 3: Kind: Experimental
    Label: group H
    Description: 100mg sarpogrelate

Trial Design

  • Allocation: Randomized
  • Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
  • Purpose: Treatment
  • Endpoint: Safety/Efficacy Study
  • Intervention: Single Group Assignment


Type Measure Time Frame Safety Issue
Primary The maximum intensity of platelet aggregation on the last day of medication and as post-treatment percentage inhibition of the maximum intensity of platelet aggregation at baseline [(baseline - post-treatment )/baseline × 100 in each subject].