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All FDA Drug Approvals Not Created Equal

  [ 7 votes ]   [ 1 Comment ]
www.ProHealth.com • January 26, 2014


All FDA Drug Approvals Not Created Equal
Press Release: Eurekalert, Jan 21, 2014
 
Many patients and physicians assume that the safety and effectiveness of newly approved drugs is well understood by the federal Food and Drug Administration (FDA) —but a new study by researchers at Yale School of Medicine shows that the clinical trials used by the FDA to approve new drugs between 2005 and 2012 vary widely in their thoroughness.
 
Published in the Jan. 22/29 issue of JAMA, the study is the first systematic analysis of the standard used by the FDA in making drug approval decisions.
 
"We found that during the study period, more than one-third of the drugs were approved on the basis of a single trial, without replication, and many other trials were small, short, and focused on lab values, or some other surrogate metric of effect, rather than clinical endpoints like death," said first author and Yale School of Medicine student Nicholas S. Downing, who conducted the study with senior author Joseph Ross, M.D., and colleagues at the Yale Center for Outcomes Research & Evaluation (CORE).
 
Downing and the team evaluated the strength of clinical trial evidence supporting FDA approval decisions for new drugs by characterizing key features of efficacy trials, such as trial size, design duration, and end points. They used publicly available FDA documents to identify 188 novel therapeutic agents for seven years. These medical review documents summarized in great detail the rationale behind FDA approvals.
 
"Based on our analysis, some drugs are approved on the basis of large, high-quality clinical trials, while others are approved based on results of smaller trials," said Ross, assistant professor of internal medicine at Yale School of Medicine. "There was a lack of uniformity in the level of evidence the FDA used."
 
He added: "We also found that only 40% of drug approvals involved a clinical trial that compared a new drug to existing treatment offerings. This is an important step for determining whether the new drug is a better option than existing, older drugs."
 
Downing said survey data shows that patients expect drugs approved by the FDA to be both safe and effective. "Based on our study of the data, we can't be certain that this expectation is necessarily justified, given the quantity and quality of the variability we saw in the drug approval process," he said.
 

Other authors on the study include Jenerius A. Aminawung, M.D., Nilay D. Shah, and Harlan M. Krumholz, M.D. The study was funded in part by the Pew Charitable Trusts.

Citation:Nicholas S. Downing, Jenerius A. Aminawung, Nilay D. Shah, Harlan M. Krumholz, Joseph S. Ross. Clinical Trial Evidence Supporting FDA Approval of Novel Therapeutic Agents, 2005-2012. JAMA doi: 10.1001/jama.2013.282034





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Article Comments Post a Comment

The Inequality runs deep...
Posted by: WilliamAkai
Jan 26, 2014
The most crucial thing that's "not equal" about the FDA is its prevalent pandering to big corporate interests above public health interests (google/bing "Tougher Supplement Regulation: A Necessity Or Politics? by Rolf Hefti").
Reply Reply
 
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