Tailored Antiplatelet Therapy Versus Recommended Dose of Prasugrel
Summary
The purpose of this study is to demonstrate the superiority of a strategy of platelet monitoring (Monitoring Arm) with down-adjustment of the dose of prasugrel in high responders and up-adjustment of the dose of prasugrel in low responders as compared to a more conventional strategy of a fixed dose of 5 mg to every patient without monitoring (Conventional Arm) as measured by a reduction in the composite endpoint of, cardiovascular (CV) death, myocardial infarction (MI) , stroke, stent thrombosis (ARC definition type "definite"), urgent revascularisation or bleeding (BARC definition type 2, 3 or 5).
Timeline
- Start
- 2012-03
- Primary completion
- 2016-05
- Completion
- 2016-05
Outcome
Missed primary endpoint
paper The primary endpoint occurred in 120 (28%) patients in the monitoring group compared with 123 (28%) patients in the conventional group PMID 27581531 ↗
paper hazard ratio [HR], 1·003, 95% CI 0·78-1·29; p=0·98). PMID 27581531 ↗
paper Platelet function monitoring with treatment adjustment did not improve the clinical outcome of elderly patients treated with coronary stenting for an acute coronary syndrome. PMID 27581531 ↗
Publications
- Results Cayla G, Cuisset T, Silvain J, Leclercq F, Manzo-Silberman S, Saint-Etienne C, Delarche N, Bellemain-Appaix A, Range G, El Mahmoud R, Carrie D, Belle L, Souteyrand G, Aubry P, Sabouret P, du Fretay XH, Beygui F, Bonnet JL, Lattuca B, Pouillot C, Varenne O, Boueri Z, Van Belle E, Henry P, Motreff P, Elhadad S, Salem JE, Abtan J, Rousseau H, Collet JP, Vicaut E, Montalescot G; ANTARCTIC investigators. Platelet function monitoring to adjust antiplatelet therapy in elderly patients stented for an acute coronary syndrome (ANTARCTIC): an open-label, blinded-endpoint, randomised controlled superiority trial. Lancet. 2016 Oct 22;388(10055):2015-2022. doi: 10.1016/S0140-6736(16)31323-X. Epub 2016 Aug 28.
- Lattuca B, Cayla G, Silvain J, Cuisset T, Leclercq F, Manzo-Silberman S, Saint-Etienne C, Delarche N, El Mahmoud R, Carrie D, Souteyrand G, Kerneis M, Hauguel-Moreau M, Zeitouni M, Guedeney P, Diallo A, Collet JP, Vicaut E, Montalescot G; ACTION Study Group. Bleeding in the Elderly: Risk Factors and Impact on Clinical Outcomes After an Acute Coronary Syndrome, a Sub-study of the Randomized ANTARCTIC Trial. Am J Cardiovasc Drugs. 2021 Nov;21(6):681-691. doi: 10.1007/s40256-021-00468-8. Epub 2021 Jun 30.
- Cayla G, Cuisset T, Silvain J, Henry P, Leclercq F, Carrie D, Etienne CS, Belle L, Range G, Pouillot C, Varenne O, Van Belle E, Boueri Z, Motreff P, Elhadad S, Delarche N, El Mahmoud R, Vicaut E, Collet JP, Montalescot G; ANTARCTIC investigators. Platelet function monitoring in elderly patients on prasugrel after stenting for an acute coronary syndrome: design of the randomized antarctic study. Am Heart J. 2014 Nov;168(5):674-81. doi: 10.1016/j.ahj.2014.07.026. Epub 2014 Aug 7.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Prasugrel | Small molecule | 5 mg | Oral |
| Comparator | Clopidogrel | Small molecule | — | — |