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Study identifier: NCT06740916 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Long-term Efficacy of Once Daily Versus Twice Daily Aspirin in High-risk MPN Patients With Aspirin Resistance

Condition: Myeloproliferative Neoplasms (MPN)  ·  Sponsor: Siriraj Hospital

PhasePhase 3
Planned participants240
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

Patients with myeloproliferative neoplasm (MPN) could have laboratory aspirin resistance and then increasing dose of aspirin from once daily to twice daily regimen is suggested. However, it is not routinely recommended to perform platelet function testing to determine aspirin resistance in MPN patients. Moreover, it is not known whether increasing dose of aspirin would always correct aspirin resistance and significantly prevent the thrombotic events in MPN patients. Therefore, this study aims to compare the efficacy of once daily versus twice daily aspirin in high-risk MPN patients with aspirin resistance. MPN patients with laboratory aspirin resistance will be included in this prospective randomized study and platelet function testing will be repeated at one and six months later. Clinical thrombosis and side effect from aspirin will be recorded for at least 2 years after intervention.

This description comes directly from the study's public registry record.

Talk to the study team

Yingyong Chinthammitr, MD, RCPT, Thai board of hemato  ·  +66 + 0814264252  ·  dryingyong@gmail.com

Always discuss trial participation with your own doctor first.

Locations (1)

Division of Hematology, Department of Medicine, Faculty of Medicine Siriraj HospitalBangkok Noi, Bangkok, ThailandRecruiting

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Source record: clinicaltrials.gov/study/NCT06740916