E-DRUG: Expanding the WHO Model Essential Medicines List (4)
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Dear Friends:
Implementing the suggestion on e-drug that the WHO Model List of
Essential Medicines adds a category of products labeled "if available
at generic prices" would be potentially misleading at this time.
Either a drug is essential because it meets an otherwise unmet need
or it is not. The principal issue with respect to inclusion on the
Model List is substantial evidence of usefulness, not price. When
alternative therapies exist, cost-effectiveness (1) is considered
when selecting the prototype medicine to list as the example from the
class.
As the proposers of this new category point out, there are
currently a number of patented medicines on the Model List because
the Expert Committee determined that they were essential. All
medicines added within the past few years are considered essential
for specific uses that have been validated by a careful review of the
data supporting the use of the medicine.
Proposals by anyone to add additional medicines to the Model List are welcome provided the application includes the data to support the determination that the proposed drug is essential for its proposed indication. It would be most helpful if individuals who identify medicines they perceive as essential and are not on the current Model List submit full applications for them for Committee consideration.
1. Weinstein MC, Stason WB. Foundations of cost-effectiveness
analysis for health and medical practices. N Engl J Med 1977; 296: 716-21.
Marcus M. Reidenberg, MD, FACP
Chairman, 2007 WHO Expert Committee on the Selection and Use of
Essential Medicines
Professor of Pharmacology, Medicine, and Public Health
Head, Division of Clinical Pharmacology
Weill Medical College of Cornell University
1300 York Ave., Box 70
New York, NY 10021
phone (212) 746-6227
fax (212) 746-8835
e-mail mmreid@med.cornell.edu