About: Misrepresentation of vital status follow-up: Challenging the integrity of the PLATO trial and the claimed mortality benefit of ticagrelor versus clopidogrel     Goto   Sponge   NotDistinct   Permalink

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Description
  • Context: Ticagrelor, a novel, reversible, and oral P2Y12 receptor antagonist, was claimed to reduce all-cause mortality compared to clopidogrel in the PLATO trial. Objective: We sought to ascertain vital status follow-up for clopidogrel and ticagrelor to determine if any discrepancy existed by reviewing data from the FDA Complete Response Review. Results: The FDA Complete Response Review indicated misrepresentation of vital status follow-up by the sponsor's presenter at the Cardiovascular and Renal Drugs Advisory Committee. Instead of five patients with missing vital status follow-up, the FDA primary efficacy reviewer indicated that there was a minimum of 106 patients. Additionally and more concerning was the fact that significantly more patients on ticagrelor (3.1%, n - 289 patients) had incomplete vital status follow-up versus clopidogrel (2.6%, n - 242 patients, p - 0.04 for the difference). Conclusions: The Advisory Committee that voted in favor to approve ticagrelor was given misrepresented data, which may have affected the approval of ticagrelor. The fact that significantly more patients on ticagrelor had incomplete vital status follow-up versus clopidogrel challenges the claimed mortality benefit of ticagrelor and the approval of the PLATO trial.
  • Context: Ticagrelor, a novel, reversible, and oral P2Y12 receptor antagonist, was claimed to reduce all-cause mortality compared to clopidogrel in the PLATO trial. Objective: We sought to ascertain vital status follow-up for clopidogrel and ticagrelor to determine if any discrepancy existed by reviewing data from the FDA Complete Response Review. Results: The FDA Complete Response Review indicated misrepresentation of vital status follow-up by the sponsor's presenter at the Cardiovascular and Renal Drugs Advisory Committee. Instead of five patients with missing vital status follow-up, the FDA primary efficacy reviewer indicated that there was a minimum of 106 patients. Additionally and more concerning was the fact that significantly more patients on ticagrelor (3.1%, n - 289 patients) had incomplete vital status follow-up versus clopidogrel (2.6%, n - 242 patients, p - 0.04 for the difference). Conclusions: The Advisory Committee that voted in favor to approve ticagrelor was given misrepresented data, which may have affected the approval of ticagrelor. The fact that significantly more patients on ticagrelor had incomplete vital status follow-up versus clopidogrel challenges the claimed mortality benefit of ticagrelor and the approval of the PLATO trial. (en)
Title
  • Misrepresentation of vital status follow-up: Challenging the integrity of the PLATO trial and the claimed mortality benefit of ticagrelor versus clopidogrel
  • Misrepresentation of vital status follow-up: Challenging the integrity of the PLATO trial and the claimed mortality benefit of ticagrelor versus clopidogrel (en)
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  • Misrepresentation of vital status follow-up: Challenging the integrity of the PLATO trial and the claimed mortality benefit of ticagrelor versus clopidogrel
  • Misrepresentation of vital status follow-up: Challenging the integrity of the PLATO trial and the claimed mortality benefit of ticagrelor versus clopidogrel (en)
skos:notation
  • RIV/00064203:_____/13:10192075!RIV14-MZ0-00064203
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
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  • 88531
http://linked.open...ai/riv/idVysledku
  • RIV/00064203:_____/13:10192075
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Misrepresentations; Clopidogrel; Ticagrelor (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • IE - Irsko
http://linked.open...ontrolniKodProRIV
  • [924F22B8964E]
http://linked.open...i/riv/nazevZdroje
  • International Journal of Cardiology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 169
http://linked.open...iv/tvurceVysledku
  • Tomek, Aleš
  • DiNicolantonio, James J.
http://linked.open...ain/vavai/riv/wos
  • 000326572600015
issn
  • 0167-5273
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.ijcard.2013.08.085
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