PMID- 24127651 OWN - NLM STAT- MEDLINE DCOM- 20150624 LR - 20211021 IS - 1369-1635 (Electronic) IS - 0953-7104 (Print) IS - 0953-7104 (Linking) VI - 25 IP - 7 DP - 2014 TI - Lower mortality following pulmonary adverse events and sepsis with ticagrelor compared to clopidogrel in the PLATO study. PG - 517-25 LID - 10.3109/09537104.2013.842965 [doi] AB - In the PLATelet inhibition and patient Outcomes (PLATO) study of patients with acute coronary syndromes, ticagrelor reduced mortality compared to clopidogrel but the mechanisms for this mortality reduction remain uncertain. We analysed adverse events (AEs) consistent with either pulmonary infection or sepsis, and subsequent mortality, in 18,421 PLATO patients treated with ticagrelor or clopidogrel. AEs occurring within 7 days of last dose of study medication were defined as "on-treatment". Serial measurements of blood leukocyte counts, C-reactive protein and interleukin-6 were performed. Fewer on-treatment pulmonary AEs occurred in the ticagrelor compared to the clopidogrel group (275 vs. 331 respectively; p = 0.019), with fewer deaths following these AEs (33 vs. 71; p < 0.001), particularly in those who remained on study medication three days after AE onset (10 vs. 43; p < 0.001). There were fewer deaths attributed to sepsis in the ticagrelor group (7 vs. 23; p = 0.003). Leukocyte counts were lower in the clopidogrel group during treatment (p < 0.0001 at 1, 3 and 6 months) but not at 1 month post-discontinuation. C-reactive protein increased more at discharge in the ticagrelor group (28.0 +/- 38.0 vs. 26.1 +/- 36.6 mg/l; p < 0.001) and interleukin-6 remained higher during the first month of treatment with ticagrelor. We conclude that the mortality risk following pulmonary AEs and sepsis in acute coronary syndrome patients appears to be lower during ticagrelor compared to clopidogrel therapy. Further work should assess whether ticagrelor and clopidogrel have differential effects on immune signalling. FAU - Storey, Robert F AU - Storey RF AD - Department of Cardiovascular Science, University of Sheffield , Sheffield , UK . FAU - James, Stefan K AU - James SK FAU - Siegbahn, Agneta AU - Siegbahn A FAU - Varenhorst, Christoph AU - Varenhorst C FAU - Held, Claes AU - Held C FAU - Ycas, Joseph AU - Ycas J FAU - Husted, Steen E AU - Husted SE FAU - Cannon, Christopher P AU - Cannon CP FAU - Becker, Richard C AU - Becker RC FAU - Steg, Ph Gabriel AU - Steg PG FAU - Asenblad, Nils AU - Asenblad N FAU - Wallentin, Lars AU - Wallentin L LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20131015 PL - England TA - Platelets JT - Platelets JID - 9208117 RN - 0 (Platelet Aggregation Inhibitors) RN - A74586SNO7 (Clopidogrel) RN - GLH0314RVC (Ticagrelor) RN - K72T3FS567 (Adenosine) RN - OM90ZUW7M1 (Ticlopidine) SB - IM MH - Adenosine/administration & dosage/adverse effects/*analogs & derivatives MH - Aged MH - Clopidogrel MH - Coronary Artery Disease/blood/*drug therapy/mortality MH - Female MH - Humans MH - Male MH - Middle Aged MH - Platelet Aggregation Inhibitors/administration & dosage/*adverse effects MH - Pneumonia/*chemically induced/mortality MH - Sepsis/*chemically induced/mortality MH - Ticagrelor MH - Ticlopidine/administration & dosage/adverse effects/*analogs & derivatives MH - Treatment Outcome PMC - PMC4220996 OTO - NOTNLM OT - Clopidogrel OT - coronary artery disease OT - platelet aggregation inhibitors OT - pneumonia OT - sepsis OT - ticagrelor EDAT- 2013/10/17 06:00 MHDA- 2015/06/25 06:00 CRDT- 2013/10/17 06:00 PHST- 2013/10/17 06:00 [entrez] PHST- 2013/10/17 06:00 [pubmed] PHST- 2015/06/25 06:00 [medline] AID - 10.3109/09537104.2013.842965 [doi] PST - ppublish SO - Platelets. 2014;25(7):517-25. doi: 10.3109/09537104.2013.842965. Epub 2013 Oct 15.