FDA’s Regulatory Decisions Concerning Palladone
August 16, 2005
The Honorable Lester M. Crawford, D.V.M., Ph.D.
Commissioner
Food and Drug Administration
5600 Fishers Lane
Rockville, MD 20857
Dear Dr. Crawford:
We write to you about an important drug-safety issue arising from the
Committee’s oversight of the FDA’s regulatory decisions concerning Palladone,
described by FDA as “a once-a-day pain management drug containing a very
potent narcotic.”
On July 13, 2005, the FDA requested Purdue Pharma, L.P. (“Purdue”) to
withdraw the painkiller prescription drug, Palladone, from the market because of
concerns that patients could die from taking the drug together with alcohol. In
reviewing how and why the FDA approved and later requested the withdrawal of
Palladone, the Committee staff learned that while Palladone was still marketed,
FDA posted on its website only safety information about the risks of alcohol
interaction with Palladone as reflected in the language of the labeling and
medication formally approved by the FDA. However, after approving Palladone in
September 2004 but prior to the product’s launch in November 2004, the FDA
permitted Purdue under a special process called a CBE (Changes Being Effected)
supplement, to use stronger labeling and medication guide language about the
alcohol risks shown in early results of studies conducted by Purdue that began
in early September 2004. That safety language, which was in fact the actual
labeling and medication guide used in the marketing of Palladone, was reflected
on Purdue’s website but not on the FDA ‘s website. Thus, we note that the
alcohol interaction information posted on the FDA’s website, dated September
24, 2004 is listed on the fourth page of the medication guide and states: “Do
not drink alcohol while using Palladone. It may increase your chance of getting
dangerous side effects.” (See Attachment One.) In contrast, the medication
guide actually on the market as reflected on Purdue’s website, dated November
16, 2004, expressly states on page 1, “Do not drink alcohol while taking
Palladone Capsules.” Moreover, it states that, “drinking alcohol while
taking Palladone capsules . . . can release the full twenty-four hour dose into
your body all at once. This is very dangerous. You could die from an overdose of
the medicine.” (See Attachment Two).
While there was no final FDA approval for the Purdue label with the alcohol
warning language, the Committee is concerned that patients and practitioners who
accessed the FDA website were not informed of the most current safety risks of
Palladone and alcohol interaction. Updating such information even without final
FDA approval is vital to ensuring the safety of American consumers taking
prescription drugs.
We note that the Committee staff recently questioned the FDA about why the
agency did not include the updated labeling and medication guide information for
Palladone on the FDA website. FDA staff told the Committee staff that the agency
was taking measures (through electronic labeling and more proactive public
health advisories) to ensure drug safety information was as current as possible.
We are committed to ensuring that the FDA provides the most current and accurate
drug safety information to the American public. Likewise, you have stated that
the FDA is “fully committed to advancing the public health by . . . helping
the public get the accurate, science-based information they need to use
medicines and foods to improve their lives.”
The Committee is appreciative and encouraged by the FDA’s statement that
the agency is moving proactively with public health advisories and electronic
labeling. We are interested in learning more about these proactive measures and
other related actions. In furtherance of helping the American public get the
most current and accurate drug-safety information from the FDA, we respectfully
request a written response by October 14, 2005, detailing: (1) a list as of July
1, 2005 of any other drugs besides Palladone for which the labeling and
medication guide information on the FDA website has been superceded by new
labeling and medication guide information permitted under a CBE supplement but
not finally approved; (2) the specific actions taken by FDA, including the dates
these actions have been taken or will be taken, to ensure that the agency’s
website reflects the most current safety information about approved drugs (or
other FDA-approved products generally).
If you have any questions, please contact Alan Slobodin of the Committee
staff at (202) 225-2927. We look forward to working with you to advance public
health.
Sincerely,
Joe Barton
Chairman
Ed Whitfield
Chairman, Subcommittee on Oversight and Investigations
Attachment 1 (PDF)
Attachment 2 (PDF)
cc: The Honorable John D. Dingell, Ranking Member
The Honorable Bart Stupak, Ranking Member
Subcommittee on Oversight and Investigations
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