Key result
Clopidogrel use was deemed appropriate in 82.7% of cases, although 60% of patients receiving clopidogrel monotherapy had no documented history of aspirin intolerance.
Why the study?
Is clopidogrel used according to FDA-approved indications and for medically justified reasons in clinical practice?
Cross-Sectional (n=191)
No
Is clopidogrel used according to FDA-approved indications and for medically justified reasons in clinical practice?
While the majority of clopidogrel use aligns with approved indications, a significant proportion of patients receive it as monotherapy without documented aspirin intolerance, highlighting an area for prescribing improvement.
Clopidogrel prescribing largely follows indications but monotherapy often lacks aspirin intolerance documentation; leaves open whether gaps reflect true intolerance or overprescribing.
BACKGROUND: Clopidogrel has shown benefit in patients with increased risk of cardiovascular diseases. Due to its high acquisition cost and its increased use, this study was conducted to review the use of clopidogrel based on the Food and Drug Administration (FDA)-approved indications and the ST-segment elevation myocardial infarction (STEMI). METHOD: This was a cross-sectional study conducted at a tertiary-care, university-affiliated hospital in the Northern part of Thailand. Medical records of patients receiving clopidogrel during January 2005 to February 2006 were reviewed. Baseline characteristics of patients along with specific information regarding the use of clopidogrel were collected. Data were analysed using descriptive statistics. RESULT: A total of 191 patients were included in this utilisation review (95 and 96 were inpatient and outpatient, respectively). The use of clopidogrel was deemed appropriate in 82.7% of cases including 72.2% for FDA-approved indications and 10.5% for STEMI. Clopidogrel/aspirin combination was indicated in 93 patients; however, 22 patients received clopidogrel monotherapy. On the contrary, 10 patients received clopidogrel/aspirin combination when only clopidogrel monotherapy was indicated. Moreover, 60% of patients who received clopidogrel monotherapy had no history of aspirin intolerance or recurrent events while on aspirin therapy. CONCLUSION: The results showed that the majority of clopidogrel use was deemed appropriate based on FDA-approved indications and for medically justified indication. However, a significant number of patients received clopidogrel instead of aspirin while no aspirin intolerance was documented. Therefore, efforts should be made to promote the appropriate use of this agent to improve patient outcomes.
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Niruntraporn et al. (2007) conducted a cross-sectional in Patients receiving clopidogrel (n=191). Clopidogrel was evaluated on Appropriateness of clopidogrel use based on FDA-approved indications and STEMI. Clopidogrel use was deemed appropriate in 82.7% of cases, although 60% of patients receiving clopidogrel monotherapy had no documented history of aspirin intolerance.
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