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[Pharmacovigilance update]
F Livio1, A Ivanyuk, J Biollaz
1Division de pharmacologie et toxicologie cliniques, Département de médecine CHUV, 1011 Lausanne. francoise.livio@chuv.ch
Abstract:
Main pharmacovigilance signals and alerts issued in 2009 are reviewed. Efalizumab was withdrawn from the market due to increased risks, including progressive multifocal leukoencephalopathy (PML) and questionable efficacy. New cases of PML are still being reported with rituximab and natalizumab. Rare cases of pure red cell aplasia have been observed with mycophenate. Gastrointestinal perforation, severe skin rashes and various ocular disorders have been reported during erlotinib use. Severe skin rashes have been related to etravirine. Acute renal failure and pancreatitis can occur with exenatide. A link between sitagliptin and pancreatitis is suspected. Raised concerns of causality between insuline glargine and malignant tumors are not supported by strong evidence. Proton pump inhibitors seem to blunt clopidogrel benefit. Aliskiren can cause angioedema.
Insights
In 2009, drug safety alerts highlighted risks like progressive multifocal leukoencephalopathy (PML) with efalizumab, leading to its market withdrawal. Other drugs showed risks including PML, aplastic anemia, and pancreatitis.
Area of Science:
- Pharmacovigilance and Drug Safety
- Clinical Pharmacology
- Regulatory Science
Context:
- Review of major pharmacovigilance signals and alerts from 2009.
- Focus on newly identified or reinforced drug safety concerns.
- Analysis of post-marketing surveillance data for adverse events.
Purpose:
- To summarize critical drug safety information released in 2009.
- To highlight drugs with significant adverse event profiles.
- To inform healthcare professionals and regulatory bodies about emerging risks.
Summary:
- Efalizumab withdrawn due to progressive multifocal leukoencephalopathy (PML) and efficacy concerns.
- Ongoing PML reports with rituximab and natalizumab; rare pure red cell aplasia with mycophenate.
- Gastrointestinal, dermatologic, and ocular events with erlotinib; skin reactions with etravirine; renal and pancreatic issues with exenatide and sitagliptin.
Impact:
- Informed clinical decision-making regarding drug selection and patient monitoring.
- Contributed to regulatory actions and updated drug safety labeling.
- Enhanced awareness of potential drug-induced adverse events, including PML and pancreatitis.
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