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‘High‐profile’ product withdrawals in the United States

 

作者: Anthony W. Fox,  

 

期刊: International Journal of Pharmaceutical Medicine  (ADIS Available online 2001)
卷期: Volume 15, issue 1  

页码: 27-30

 

ISSN:1364-9027

 

年代: 2001

 

出版商: ADIS

 

关键词: pharmacovigilance;Food and Drugs Administration;product withdrawal

 

数据来源: ADIS

 

摘要:

There have been 13 high‐profile product withdrawals in the United States during the past 4 years. These withdrawals have been due to a limited range of adverse event types, usually associated with relevant antecedent information. Lesser degrees of regulatory action (e.g. specific post‐marketing surveillance requests, labelled warnings, black boxes, and ‘Dear Doctor’ letters) have often preceded product withdrawal. Criticism of regulators has been misdirected because there is no evidence for a chronological trend in the need to withdraw products, nor in the marketed lifespan. The existence of antecedent information is not necessarily a basis for allegations of earlier, prospective grounds for NDA rejection or product withdrawal: In some cases, adverse events have arisen in patients for whom warnings against prescription already existed. Nonetheless, there appears to be scope for improving this situation. Prescribers need to be more familiar with product labels, and to be able to perceive clinically significant adverse event reports from among the mass of information provided. Black boxes are also currently used ambiguously in the United States. Non‐professional constituencies need to understand that relative rather than absolute judgments are required for all drug approvals and withdrawals.

 

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