Evaluation of Antiplatelet Effects of Different Dosages of Aspirin in Type 2 Diabetic Patients (DM-ASA 001)

May 24, 2022 updated by: Paul Hjemdahl, Karolinska Institutet
The efficacy of low dose aspirin appears to be substantially lower in diabetic patients, compared to patients without diabetes. The aim of the investigators study is to test the laboratory response to different dosing of aspirin in type 2 Diabetes Mellitus. The investigators will compare the regular dose of 75mg once daily to 75 mg twice daily or to 320 mg once daily. The hypothesis of the study is that twice daily dosing of aspirin may improve the response to aspirin.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

25

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Sweden
      • Stockholm, Sweden
        • Department of Medicine, Clinical pharmacology Unit, Karolinska University Hospital, Solna.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years to 75 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Type 2 DM with micro- or macroangiopathy.
  • HbA1c 6-9 % (Mono-S method).
  • Need for, or already on-going aspirin treatment.
  • Age 50-75 years
  • Antecubital forearm veins allowing technically good sampling for platelet studies

Exclusion Criteria:

  • Diet controlled DM.
  • Acute ischemic stroke, acute coronary syndrome, (myocardial infarction or unstable angina pectoris), or revascularization by PCI or by-pass surgery within the last 6 months.
  • Acute or chronic kidney disease (P-cystatin C within the reference interval)
  • Acute or chronic liver disease (ALAT ≤2 times the upper reference value).
  • A history of gastric or duodenal ulcer disease.
  • Need for treatment with anticoagulants, clopidogrel, NSAID's, or thiazolidinediones.
  • Thrombocytopenia (platelet count <150 x 109/L)
  • Anticipated need for alteration of concomitant drug therapy during the course of the study.
  • Enrollment in another clinical study.
  • Contraindication(s) to aspirin treatment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: BASIC_SCIENCE
  • Allocation: RANDOMIZED
  • Interventional Model: CROSSOVER
  • Masking: NONE

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
An exploratory study with three co-primary response variables which are directly related to platelet COX-1 inhibition: arachidonic acid-induced platelet aggregation in whole blood and PRP and in the Cone-and-Plate(let) Assay (CPA)
Time Frame: 12 or 24 hours after last dose of Aspirin
12 or 24 hours after last dose of Aspirin

Secondary Outcome Measures

Outcome Measure
Time Frame
Indirectly COX-related platelet aggregation induced by collagen or ADP, and thromboxane metabolite excretion.
Time Frame: 12 or 24 hours after last dose of aspirin
12 or 24 hours after last dose of aspirin

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Karolinska Institutet

Investigators

  • Principal Investigator: Paul Hjemdahl, MD, PhD, Karolinska Institutet

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2008

Primary Completion (ACTUAL)

October 1, 2010

Study Completion (ACTUAL)

October 1, 2010

Study Registration Dates

First Submitted

December 18, 2008

First Submitted That Met QC Criteria

December 18, 2008

First Posted (ESTIMATE)

December 19, 2008

Study Record Updates

Last Update Posted (ACTUAL)

May 27, 2022

Last Update Submitted That Met QC Criteria

May 24, 2022

Last Verified

May 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • EudraCT No: 2007-003186-40

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Type 2 Diabetes Mellitus

Clinical Trials on Aspirin

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Croatia

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe