Low Dose Ticagrelor Versus Low Dose Prasugrel in Patients With Prior

Status Completed

Clinical Trial Summary

Taken together the results from DAPT and PEGASUS-TIMI54, it appears that physicians may consider extending beyond 1 year or reinitiating treatment with a thienopyridine or ticagrelor 60mg bid in patients with a prior MI and features of high ischemic and low bleeding risk. Comparative clinical or pharmacodynamic studies, however, between prasugrel 5 mg od and ticagrelor 60 mg bid in the chronic phase of stable post MI patients have not been performed.

In light of this, we believe that a dedicated pharmacodynamic study of ticagrelor 60 bid mg vs prasugrel 5 mg od in a PEGASUS-like population would be informative for the practicing clinician, thus setting the rationale for conducting this specifically designed investigation.

Clinical Trial Description

This is a prospective, randomized, single blind, single center, crossover study. Eligible patients undergoing P2Y12 receptor antagonist therapy before screening will undergo a 14-day minimum washout period before randomization. Following screening/washout period (visit 1), patients will be randomized (visit 2, time 0) in 1:1 fashion to either prasugrel 5 mg od or ticagrelor 60 mg bid. Following 14±2 days (visit 3) patients will receive alternate treatment for additional 14 days (visit 4). Platelet reactivity assessment will be performed with the VerifyNow P2Y12 reaction assay at time 0, prior to first study drug dose. At visit 3 platelet function will be assessed at 2-4 hours post dose and prior to crossover. At visit 4 also platelet function will be assessed at 2-4 hours post study drug post dose. All patients will receive concomitant aspirin (100 mg/d) and standard secondary prevention medication.

The primary endpoint is the platelet reactivity measured in P2Y12 reaction units (PRU) at the end of the 2 study periods (pre-crossover and post-crossover). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03387826
Study type	Interventional
Source	Attikon Hospital
Contact
Status	Completed
Phase	Phase 4
Start date	January 11, 2018
Completion date	January 31, 2019

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Low Dose Ticagrelor Versus Low Dose Prasugrel in Patients With Prior Myocardial Infarction — ALTIC-2

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms