The new study, published in the Canadian Medical Association Journal, included the results of 14 random, blinded clinical trials that monitored cardiovascular health in more than 8,000 patients taking either Chantix or a placebo. Collectively, the trials found that 52 smokers in the Chantix groups suffered a heart attack, stroke, or other serious cardiovascular event while just 27 smokers taking placebo experienced the same cardiovascular problems. According to the New York Times, the “weighted, relative difference” between the two groups was 72 percent.

In the real world, the findings of these two latest Chantix studies mean that “doctors could expect to get one extra cardiac event associated with Chantix for every 28 smokers they treated with the drug,” the New York Times reported.

“We have known for many years that Chantix is one of the most harmful prescription drugs on the U.S. market, based on the number of serious adverse effects reported to the F.D.A.,” said Dr. Curt D. Furberg, a Wake Forest professor of medicine and senior author of the new report. “It causes loss of consciousness, visual disturbances, suicides, violence, depression and worsening of diabetes. To this list we now can add serious cardiovascular events.”

Dr. Furberg said that there were safer ways for smokers to quit and called for Chantix to be removed from the market.

“It piles up,” Dr. Furberg told the New York Times. “I don’t see how the F.D.A. can leave Chantix on the market.”

The study’s lead author, Dr. Sonal Singh, an assistant professor of medicine at Johns Hopkins University, said that since Chantix gained market approval in 2006, both Pfizer and the FDA have ignored signs that it might be linked to increased cardiovascular risks.

“The F.D.A. should have already put it on their warning label,” Dr. Singh said. “The risk is substantial, the risk is present in smokers without heart disease, and Pfizer knew about this for five years.”

“This would have raised a red flag for us if the flag hadn’t already been flying,” Dr. Celia Winchell, a leader in the FDA’s Center for Drug Evaluation and Research told the New York Times. However, short of a recall, the new findings are likely to have little impact on the FDA’s treatment of Chanitx because the drug already carries the agency’s strongest black-box warnings.

Since its debut, Chantix has been prescribed to 13 million people. Last year, the drug earned Pfizer $775 million in sales.

SOURCE: Chantix Recall › Chantix significantly increases cardiovascular risks, according to another new study

WhyQuit reports that in surveys and scientific studies, more people were found to have successfully quit smoking long term using the cold turkey method than nicotine replacement therapies (NRT). NRT delivers smokeless nicotine to the user through chewing gum, lozenges, patches, and nasal sprays. NRT manufacturers typically tout their products as effective ways to ease nicotine withdrawal symptoms, which, in theory at least, should help smokers to quit. However, the vast majority of NRT users either resume smoking or become as addicted to expensive nicotine gum, patches, and lozenges.

Although no studies have compared cold turkey to Chantix, researchers have studied Chantix against NRT. While one study showed that Chantix appeared to be more effective than NicoDerm CQ in the short term, after a year, the success rate was statistically the same for both Chantix and NRT users. According to WhyQuit, the study forced Pfizer researchers to report that there were “no significant differences” between Chantix and NRT, but Pfizer’s ads do not mention the statistic.

If cold turkey is more effective than Chantix, and NRT is about the same, “why assume Chantix’s long list of serious use risks in exchange for little or no benefit?” WhyQuit asks.

The organization says that without support, “Chantix is probably worthless.” While counseling and support have proven their ability to drastically boost the chances of quitting permanently, Chantix has never been tested as a stand-alone smoking cessation aid. The drug is packaged with a support plan that includes a toll-free number and a web site to which consumers may turn for extra support. Pfizer hasn’t said what percent of Chantix users take advantage of the support program, but if the support seekers were subtracted from the total number of successful Chantix quitters, then the success rate would likely plummet.

Also, if Chantix were as helpful as Pfizer claims, then smoking rate in America ought to be descending. Since Chantix first appeared on the market, however, the adult smoking rate actually increased by one percent.

A third point of contention WhyQuit makes concerns the placebo studies that researchers conducted to gauge the effectiveness of Chantix. “Use of placebo controls in drug addiction studies is license to steal,” WhyQuit says, asserting that test subjects who experience severe withdrawal symptoms certainly know that they’ve been given a placebo rather than a drug that is supposed to mitigate those symptoms. Such studies allow Pfizer to exaggerate the efficacy of Chantix.

Fourthly, WhyQuit calls Pfizer out on its ads displaying people who claim, “I honestly love smoking,” saying that the ads mess with the drug-addicted brains of smokers. Pfizer adds appeal to Chantix by telling consumers that they may continue to smoke through the first week of treatment.

“It isn’t that we loved smoking but that we didn’t like what happened when we didn’t smoke,” WhyQuit claims.

“Drug addiction is about living a lie,” WhyQuit says. A dopamine reward pathway that convinces the addict that “nicotine use defines who they are, gives them their edge, helps them cope and that life without smoked nicotine would be horrible. Pfizer knows this and is now playing upon it.”

Finally, WhyQuit asserts that “what Pfizer will never teach smokers is that cold turkey accounts for far more long-term success stories each year than all other quitting methods combined.” After 3 days of nicotine abstinence, physical withdrawal symptoms dissipate and the brain works to heal its receptors. Counseling and support help cold turkey quitters with the emotional and psychological aspects of quitting smoking.

SOURCE: Chantix Recall › Support group says Chantix ads conceal important information

Carter, who played keyboard and guitar for Edie Brickell & The New Bohemians, was shot and killed by his girlfriend’s neighbor in the predawn hours of September 3, 2007. According to Ryann Rathbone, Albrecht’s girlfriend at the time, the two had spent the evening at a Dallas bar before going back to Rathbone’s home, where they both took their Chantix doses. Shortly afterward, Albrecht began speaking incoherently and acting violently, hitting Rathbone several times.

Rathbone ran out of the house and Albrecht pursued her. She then ran back into the house, closed the door, and locked Albrecht outside, whereupon he began pounding on the door and yelling. He then entered the neighbor’s backyard and began beating on his back door and shouting. Alarmed by the commotion, the neighbor fired what he said he intended to be a warning shot through the front door. The bullet hit Albrecht in the head, killing him instantly.

Both Rathbone and Albrecht’s family and acquaintances said that his behavior on that fatal night was uncharacteristic. Rathbone says that Albrecht’s behavior became increasingly erratic once he started taking Chantix. Autopsy results showed that Albrecht’s blood alcohol level was more than twice the legal driving limit in Texas, yet those who knew him say that his behavior on September 3 was abnormal, even after drinking heavily.

Chantix first became available by prescription in 2006. Awareness of the drug’s potential to cause negative neuropsychiatric events was not well documented at the time of Albrecht’s death. Just a couple of weeks after the deadly incident, a CBS affiliate in Dallas ran a story about Albrecht’s strange behavior called Chantix: Miracle Drug or Dangerous Problem? Two months later, the Food and Drug Adminstration issued an early communication about an ongoing safety review of Chantix, alerting the public that Chantix may be linked to changes in behavior, agitation, depressed mood, suicidal thoughts and actions, and other side effects.

SOURCE: Chantix Recall › Family of musician killed in Chantix rage sues Pfizer

The new boxed warning on Chantix labeling will read: “Serious neuropsychiatric events, including, but not limited to depression, suicidal ideation, suicide attempt and completed suicide have been reported in patients taking Chantix.”

Revised warnings state that neuropsychiatric symptoms and suicidality have been found in patients using Chantix. The post-marketing reports include changes in mood (including depression and mania), psychosis, hallucinations, paranoia, delusions, homicidal ideation, hostility, agitation, anxiety and panic, as well as suicidal ideation, suicide attempt, and completed suicide.”

The warnings state that patients should stop taking Chantix immediately if they experience any of the adverse neuropsychiatric symptoms or exhibit changes in thinking and acting that aren’t characteristic of the patient.

The new Chantix warnings also caution that “there have been post-marketing reports of traffic accidents, near-miss incidents in traffic, or other accidental injuries in patients taking Chantix.

The new warnings also advise that “resolution of symptoms after discontinuation of Chantix was reported,” but that the symptoms persisted in some cases.

Warnings for Wellbutrin and Zyban are to carry warnings similar to those for Chantix. “Patients should be observed for neuropsychiatric symptoms including changes in behavior, hostility, agitation, depressed mood, and suicide-related events, including ideation, behavior, and attempted suicide.”

SOURCE: Chantix Recall › FDA approves stronger, expanded warnings on Chantix labeling