PMID- 21106014 OWN - NLM STAT- MEDLINE DCOM- 20110310 LR - 20211020 IS - 1747-0803 (Electronic) IS - 1747-079X (Print) IS - 1747-079X (Linking) VI - 5 IP - 6 DP - 2010 Nov-Dec TI - Platelet activity associated with concomitant use of clopidogrel and proton pump inhibitors in children with cardiovascular disease. PG - 552-5 LID - 10.1111/j.1747-0803.2010.00461.x [doi] AB - CONTEXT: In adults with acute coronary syndrome, decreased platelet inhibition associated with concomitant use of clopidogrel and proton pump inhibitors (PPI) has been reported. OBJECTIVE: To evaluate platelet activity associated with PPI + clopidogrel vs. clopidogrel alone in children enrolled in the Platelet Inhibition in Children On cLOpidogrel (PICOLO) trial of clopidogrel in children with a cardiac condition at risk for arterial thrombosis. DESIGN: Patients 0-24 m randomized to active therapy in the PICOLO trial were included in the present analysis. Platelet aggregation inhibition at baseline and steady state were evaluated in patients taking clopidogrel + PPI vs. clopidogrel only in the overall cohort and sub-group of clopidogrel responders. RESULTS: A total of 49 patients were included (44 clopidogrel only, five clopidogrel + PPI); median age 38 days (interquartile range [IQR] 17-157 days). The majority of patients in each group had undergone systemic-to-pulmonary artery shunt. Compared with the clopidogrel group, patients in the clopidogrel + PPI group had a trend toward lower percent inhibition of maximum extent of platelet aggregation overall (median 6%, IQR 0-44% vs. 49%, IQR 19-63%, P= 0.09), and a significant reduction in the clopidogrel responders sub-group (median 25%, IQR 3-45% vs. 53%, IQR 38-65%, P= 0.04). There was no difference in percent inhibition of rate of platelet aggregation. CONCLUSIONS: Concomitant use of PPI + clopidogrel may be associated with decreased platelet inhibition in children with cardiac disease. Further study in a larger population and assessment of associated clinical outcomes is warranted. CI - (c) 2010 Copyright the Authors. Congenital Heart Disease (c) 2010 Wiley Periodicals, Inc. FAU - Pasquali, Sara K AU - Pasquali SK AD - Department of Pediatrics, Duke University Medical Center, Duke Clinical Research Institute, Durham, NC 27715, USA. sara.pasquali@duke.edu FAU - Yow, Eric AU - Yow E FAU - Jennings, Lisa K AU - Jennings LK FAU - Li, Jennifer S AU - Li JS LA - eng SI - ClinicalTrials.gov/NCT00115375 GR - K08 HL103631/HL/NHLBI NIH HHS/United States GR - 1K08HL103631-01/HL/NHLBI NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Congenit Heart Dis JT - Congenital heart disease JID - 101256510 RN - 0 (Platelet Aggregation Inhibitors) RN - 0 (Proton Pump Inhibitors) RN - A74586SNO7 (Clopidogrel) RN - OM90ZUW7M1 (Ticlopidine) SB - IM MH - Child, Preschool MH - Clopidogrel MH - Double-Blind Method MH - Female MH - Heart Defects, Congenital/blood/complications/*drug therapy/surgery MH - Humans MH - Infant MH - Infant, Newborn MH - Male MH - Platelet Aggregation/*drug effects MH - Platelet Aggregation Inhibitors/*therapeutic use MH - Platelet Function Tests MH - Prospective Studies MH - Proton Pump Inhibitors/*therapeutic use MH - Thrombosis/blood/etiology/*prevention & control MH - Ticlopidine/*analogs & derivatives/therapeutic use MH - Time Factors MH - Treatment Outcome MH - United States PMC - PMC3036010 MID - NIHMS268826 COIS- Conflict of interest: None. EDAT- 2010/11/26 06:00 MHDA- 2011/03/11 06:00 PMCR- 2011/11/01 CRDT- 2010/11/26 06:00 PHST- 2010/11/26 06:00 [entrez] PHST- 2010/11/26 06:00 [pubmed] PHST- 2011/03/11 06:00 [medline] PHST- 2011/11/01 00:00 [pmc-release] AID - 10.1111/j.1747-0803.2010.00461.x [doi] PST - ppublish SO - Congenit Heart Dis. 2010 Nov-Dec;5(6):552-5. doi: 10.1111/j.1747-0803.2010.00461.x.