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Archive for the ‘Chantix’ Category

Chantix Suicide Link Issued by England’s Drug Regulator

Tuesday, November 11th, 2008

The United Kingdom’s drug regulator on November 10, 2008, linked Pfizer’s smoking-cessation drug Chantix to reports of “depression and suicide related events.”

Documents posted by the Medicines and Healthcare products Regulatory Agency gives the following advice: “Patients who are taking [Chantix] who develop suicidal thoughts or who develop agitation, depressed mood, or changes in behavior that are of concern for the doctor patient, family, or caregiver should stop their treatment and contact their doctor immediately.”

MHRA has said that 10 people have taken their own lives after using Chantix (sold as Champix over there), according to the Daily Mail, a paper that’s not on our usual reading list. Another 213 people said they’d had suicidal thoughts and 407 said they were suffering from depression, the newspaper reported. Through June, about 450,000 people had used the drug in the U.K., the MHRA said.

Still, the MHRA has also said the reactions aren’t necessarily caused by the drug and may relate to other factors, such as nicotine withdrawal or other medications patients take. But the agency also pointed out that suicide-related events have been reported by Chantix patients who had no known pre-existing psychiatric conditions and in some who continued to smoke.

A spokesman for the MHRA told the Daily Mail that while reports of side effects may have increased, so may have the number of people taking the drug.

Chantix Linked to More Injuries

Wednesday, October 22nd, 2008

On October, 22, 2008, researchers announced that the popular smoking-cessation drug Chantix, manufactured by Pfizer, should carry a strong warning about the potential risks of accidental injury and death.

More than 1,000 health problems and injuries were reported in the first quarter of 2008 in patients taking the drug, including 50 deaths, researchers at the nonprofit Institute for Safe Medication Practices and Wake Forest University found.

The scientists analyzed post-marketing data submitted to the FDA on people who took the drug, which was approved in 2006.

In a statement, Pfizer said it was aware of the types of reported events the researchers analyzed but that such reports are inconclusive. Chantix is safe and effective when used as directed, the company added.

The FDA has said it is reviewing all the reports. Agency representatives could not be immediately reached for comment on the researchers’ latest findings.

Chantix already carries a warning for depression, suicidal behavior, agitation and other unusual activity.

In May, the researchers first reported the rise of serious accidents, vision problems and heart trouble in patients taking Chantix. At that time they cited 173 reports of accidents and injuries.

In their latest findings, they said there were 1,001 new reported complications and deaths that included 15 traffic accidents and 52 incidents of loss of consciousness.

The reports of problems with Chantix were greater than for any other prescription drug for the second quarter in a row, the researchers added.

VA Ineffective In Protecting Veterans

Sunday, September 21st, 2008

On September 19, 2008, an internal review found that the Veterans Affairs Department was responsible for numerous “unacceptable failures” in ensuring safeguards for soldiers with post-traumatic stress disorder who were enrolled in a medical experiment to help them quit smoking.

Despite the stinging report, the agency has decided to proceed with the experiment, including allowing participants to take a drug that carries risks of suicide and other psychotic behavior, officials said.

The investigation, prompted by a series of stories earlier this summer in The Washington Times as part of a joint investigation with ABC News, said that the smoking cessation study “did not adequately fulfill VA’s singular responsibility to maximize safeguards for veterans who volunteer to participate in research.”

The review by the VA’s Office of Research Oversight (ORO) also found “unacceptable failures to maximize safeguards for the veterans who had volunteered to participate” in the study, including the lack of a system in place to alert researchers and participants when drug safety warnings are issued.

Researchers responsible for the smoking cessation study first failed to notify internal review boards that oversaw the experiment at 10 locations when the FDA first publicized concerns in November that the drug varenicline, commercially known as Chantix, may induce suicidal thoughts or actual suicides.

When a second warning was issued in February it took anywhere from 16 to 134 days to alert veterans, and the review expressed doubts as to whether all veterans in the study received the warnings.

Despite a multitude of discrepancies and failures identified by the review, the study made no recommendation either in favor of terminating or of continuing the study, which involves more than 900 veterans.

VA spokeswoman Alison Aikele told The Washington Times on September 19, 2008,  that the experiment will continue, and that Chantix, prescribed to 240 veterans in the study by their own doctors, will continue to be made available to the participants.

“It is an FDA-approved medication, and guidelines have been distributed to providers and information to patients,” Miss Aikele said.

The smoking cessation study came under fire in June after a Washington Times/ABC News joint investigation reported that the VA had taken at least three months before it began to alert the veterans taking Chantix about the possible new side effects.

The notice came nearly one month late for Iraqi war veteran James Elliott, who suffered a mental breakdown while taking the drug. In what he later described as an attempt at “suicide by cop,” Mr. Elliott was shocked with a Tazer during a stand-off with police in Silver Spring.

The report urged VA officials to conduct an investigation to “hold appropriate individuals accountable for any research protection failures in [the study], specifically including responsibility for factors contributing to undue delays in notifying participants about the risks associated with varenicline.”

Rep. Bob Filner, California Democrat and chairman of the House Veterans Affairs Committee, held a July 9 hearing in response to the Times/ABC News investigation where Dr. Tom Puglisi, chief officer of the ORO and author of the review, said he feared that similar notification problems exist throughout the agency’s human-subject testing programs, particularly those that target veterans with PTSD.

Dr. Puglisi’s testimony then said he was “very concerned” about the study, but he did not explicitly back either canceling or continuing it. Mr. Filner and other lawmakers have demanded that the VA end the study.

The review recommended that the VA establish a reliable system to notify the researchers and study participants about new or emerging medication safety information, and the VA says it has developed an action plan to implement this and all the recommendations contained in the report.

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