Startseite Antiaggregation effect of clopidogrel in coronary heart disease patients using omeprazole
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Antiaggregation effect of clopidogrel in coronary heart disease patients using omeprazole

  • Dian Hasiannami Boru Munthe , Siti Sjamsiah Sargo EMAIL logo und Mohammad Yogiarto EMAIL logo
Veröffentlicht/Copyright: 25. Januar 2020

Abstract

Background

Antiplatelet agents used in coronary heart disease (CHD) cause gastrointestinal side effects. Omeprazole can prevent and cure these antiplatelet side effects. Clopidogrel combined with aspirin increases the risk of gastrointestinal tract ulcers and bleeding. This research studied the effect of omeprazole on the antiplatelet effect of clopidogrel.

Methods

CHD patients using clopidogrel and aspirin receive omeprazole 20 mg in a single dose for 10 days. Platelet antiaggregation point for clopidogrel was measured using VerifyNow P2Y12. The cutoff points used were: low on treatment platelet reactivity (LPR) <85 P2Y12 reaction unit (PRU), normal on treatment platelet reactivity (NPR) 85–208 PRU, and high on treatment platelet reactivity (HPR) >208 PRU.

Results

Using the paired t-test PRU points pre- and post-omeprazole were 154 ± 85.89 PRU and 169.4 ± 56.15 PRU, respectively. The PRU points were consistent or decreased from the previous PRU points below the HPR cutoff (p: 0.215; >0.05). Before omeprazole use, five patients were categorized as NPR, two patients as LPR, and three patients as HPR. After omeprazole use, two patients, each from HPR and NPR category had a PRU point >208; the rest showed results below the HPR point.

Conclusions

In this study the PRU points of clopidogrel after omeprazole use showed a PRU <208. The hypothesis that omeprazole may reduce the antiaggregation effect of clopidogrel as shown by the increase in PRU above the cutoff points >208 PRU (HPR) was not proven.

  1. Research funding: None declared.

  2. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  3. Competing interests: Authors state no conflict of interest.

  4. Informed consent: Informed consent was obtained from all individuals included in this study.

  5. Ethical approval: This research involves human subjects complied with all relevant national regulations, institutional policies, and is in accordance with the tenets of the Helsinki Declaration (as revised in 2013), and has been approved by the authors’ institutional review board (2015), or equivalent committee. (614/Panke.KKE/XII/2015).

References

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Received: 2019-09-13
Accepted: 2019-11-20
Published Online: 2020-01-25

© 2019 Walter de Gruyter GmbH, Berlin/Boston

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