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Monday, March 12, 2007
Charleston, South Carolina



Flawed research equates placebo to cold turkey

Is government backing of pharmaceutical industry deceit killing smokers?

by John R. Polito, founder of WhyQuit and author of "Freedom from Nicotine - The Journey Home"

placebo pill surrounded by broken cigaretteA 2006 GlaxoSmithKline article entitled "Don't Go Cold Turkey" asserts "that using a nicotine replacement therapy can double a smoker's chances of quitting for good." A 2004 Pfizer article entitled "Cold Turkey is for Leftovers" claims that "smokers who seek therapeutic assistance while quitting smoking can double their chances of success."

Doubled chances compared to what? Those headlines and countless other industry representations imply a comparison to real-world cold turkey quitters. Across the airways and Internet, the industry creates the impression that, in direct competition with people who choose cold turkey, users of its products have blown them out of the water. In fact, industry claims are based on artificial laboratory studies. They are valid only to the extent that laboratory conditions are like real life.

Therefore, we need to consider: can people who volunteer to test a drug, but who are randomly assigned to get a placebo instead of the drug they wanted, reasonably be compared to people who decide to quit smoking without drugs? A growing chorus of independent experts and health advocates are expressing concern that the pharmaceutical industry has either divorced itself from common sense or is intentionally deceiving smokers.

"Pharmacotherapy in general is over-emphasized," asserts Dr. Michael Siegel, a physician and professor at Boston University School of Public Health. "Most smokers who quit successfully long-term are those who quit cold turkey without any particular pharmaceutical aids."

"Research efforts trying to show that NRT does work, however marginally, had to concentrate primarily on short term results, since long range cessation successes have been weak, unconvincing or altogether absent," contends Dr. K.H. Ginzel, a physician, retired University of Arkansas pharmacology professor and life-long nicotine researcher. "The magical pill or patch to make you a nonsmoker is no match for the nonchemical behavioral and psychotherapeutic treatments of nicotine addiction, not to speak of the good old-fashioned 'Cold Turkey' approach."

The industry is fully aware that randomized clinical trials did not involve cold turkey quitters. Instead, pharmacology clinical trials compared those who hoped to obtain some degree of anxiety relief from the free dopamine enhancement chemical being offered in the study (nicotine, bupropion or varenicline) to those who wanted such a drug but didn't get it.

While the study subjects hoped for some chemical relief of anxiety and other withdrawal symptoms, cold turkey quitter expectations are very different. They fully expect to endure the anxieties associated with up to three days of nicotine detox. They expect to navigate full-blown withdrawal, not minimize, drag it out, or postpone it. They would have no motive to sign up for clinical trials.

Concerns do not end with selection of subjects. A hallmark of the classical "blind" clinical trial is that subjects and researchers do not know who is getting the medicine and who is getting the placebo. If the study is not truly blind, it is impossible to know whether any apparent benefits come from the chemical itself or from the belief that the chemical is working. A good clinical trial will evaluate its own blindness - ask subjects to guess whether they are getting the active drug or the placebo. If the study is blind, about the same number should guess right as guess wrong.

Such blindness studies as we have (Mooney 2005) tell us that NRT clinical studies were generally not blind as claimed. Nicotine withdrawal causes a host of well documented symptoms, including substantial anxiety, anger, irritability, impatience, restlessness, time distortion, chest tightness, headaches, an inability to concentrate, a sense of mind fog, fatigue and insomnia. Most study subjects have attempted to quit in the past and would naturally recognize their own withdrawal symptoms. Having jumped through a number of hoops for the promise of free "medication," placebo recipients would add frustration to the list of symptoms that prior failed attempts had taught them to expect. It's hardly surprising that this group, being treated this way, would fail to quit smoking. Those much touted "doubled odds" were not earned in the clinical trials, but secured by default.

"The failure of blinding in just about every NRT clinical trial casts doubt on the validity of these studies," suggests Dr. Siegel. "Smokers entering a trial and hoping to receive nicotine replacement are likely to be able to detect whether they are indeed receiving it. And if they aren't, what are the chances that they are going to maintain their enthusiasm and motivation to remain cigarette-free?"

"The issue of possible failure of blinding, and hence of possible bias in estimates of treatment effect is a potential problem in many areas of medicine," asserts Lindsay Stead, author of Cochrane Group articles supporting NRT.

But given that a study's blindness goes to its core validity and the whole reason for testing against placebos in the first place, this response is hardly acceptable. If the problem is inherent in the study's design, it's time to revise the design.

Dr. Siegel asks, "Is NRT truly being compared to placebo, or is this essentially a one-arm study, with NRT being compared to a population of disappointed research subjects?"

The only way to have honest comparisons is to invite and fairly service the nicotine dependency recovery needs of those having an expectation of abruptly ending all nicotine use. To experience the current study format farce in all its glory we'd need to actively recruit smokers who want to quit cold turkey and then randomly assign half to wear a patch. If that sounds strange, remember it is just the mirror image of the clinical trials done to date.

Real-World Effectiveness Surveys

Although those assigned to the active group and actually receiving these drugs in clinical trials achieved success rates 1.5 to 2 times higher than those assigned to placebo, once outside the clinic doors and going head-to-head against real cold turkey quitters, NRT and bupropion fell flat on their face.

In a February 8, 2007 Wall Street Journal (WSJ) article by Pulitzer Prize winning journalist Kevin Helliker he writes, "Some public-health officials say industry-funded doctors are ignoring other studies that suggest cold turkey is just as effective or even superior to nicotine patches and other pharmaceuticals over the long run, not to mention cheaper."

Surveys from California (2002), Minnesota (2002), Quebec (2004), London (2003), Maryland (2005), UK NHS (2006) and Australia (2006) all report no long-term statistical advantage for quitters using pharmaceutical quitting aids over cold turkey quitters. In fact, in the Australian study, among patients of 1,000 family practice physicians, cold turkey was twice as effective as NRT or bupropion (Zyban/Wellbutrin).

Quitting methods chart prepared by WhyQuit.com using data from a May 2006 study in Addictive Behaviors, Volume 31, at page 764

"To imply that medications are the only way is inappropriate," says Lois Biener, a senior research fellow at the University of Massachusetts at Boston who has surveyed former smokers in her state, as quoted by Helliker. "Most people don't want them. Most of the people who do quit successfully do so without them."

A growing body of real-world effectiveness evidence screams that quitting medications are a sham. Yet political appointee health policymakers at the AHRQ, CDC, FDA, FTC and NIH, appointed by an administration that has made no secret about placing pharmaceutical industry profits above consumer concerns, continue to turn their heads.

"If we're going to be intellectually honest, we have to be willing to examine the issue of whether current users [of medication] are obtaining long-term rates of abstinence that are higher than anyone else," Helliker quotes Kenneth Warner, a tobacco researcher and dean of the University of Michigan School of Public Health as saying. "That's going to be very hard for people to do in the smoking-cessation community, because belief in the value of medication runs so deep."

Those beliefs are so profound that in one instance NRT advocates resorted to impliedly suggesting that "real-world" New York quitters receiving free NRT went head-to-head with non-NRT quitters and prevailed. A 2006 study documents a give-a-way of free NRT and contrasts quitting rates "with the quit rate computed from an earlier follow-up survey of Quitline callers who were not provided NRT." What isn't mentioned is that the earlier Quitline data was from a program strongly advocating "purchase" and use of NRT, or that the give-a-way, more than a year later, occurred in conjunction with a highly motivating event - New York going smokeless.

"There is really no good evidence that nicotine replacement therapy in the long run makes a big difference," says Dr. Ginzel.

The first quitting method survey review bold enough to openly declare that NRT is ineffective as an aid to smoking cessation was authored by John P. Pierce, PhD, and published in the Journal of the American Medical Association in September 2002. Helliker's article quotes Dr. Pierce as saying that greater use of medication "is not associated with any increase in successful quitting in the population."

2002 Journal of the American Medical Association study concludes that NRT appears no longer effective in increasing long-term successful cessation in California smokers

Upon release, Dr. Pierce's California survey findings were viciously attacked. The main criticism was that surveys rely on the responder's memory of past events. This objection could only seem reasonable by minds with zero experience at trying to break nicotine's grip. According to the Surgeon General, quitting smoking is as hard to beat as heroin or cocaine. According to the Canadian government it's harder. It is pure fiction to pretend that any quitter will forget the method used to reclaim their mind, health and life. Almost all can tell you the year they quit and many recall the day and hour. Why would they forget using a patch or a pill?

Perhaps we should not be surprised at a for-profit industry using flawed science to sell its product and criticizing the research that questions its effectiveness. However, we should be surprised when government gets in on the act. In 2006, a National Cancer Institute (NCI) study analyzed Tobacco Use Supplement data from the U.S. Current Population Survey. It found that 16% of those quitting without the aid of any pharmaceutical quitting product were still not smoking at nine months. It also found that only 14% of nicotine patch quitters, 14% of nicotine gum and lozenge users, 14% of Zyban users, and 12% of users who combined Zyban with NRT were still not smoking.

National Cancer Institute study results from Tobacco Use Supplement data in the U.S. Current Population Survey


Although it had determined that the question was worth investigating, the government did not publish the results of its own study. If this seems inexplicable, it may be worth noting that the survey results undercut the government's national cessation policy, which recommends purchase and use of quitting pharmacology products by all quitters unless medically contraindicated. It is a policy that, as noted in Helliker's WSJ article, our government is knowingly, at this very moment, allowing pharmaceutical industry stakeholders to shape and control.

The national implications of refusing to immediately act upon the only credible quitting method data available are disturbing. The NCI's study data suggests that although 1,706 nicotine gum, lozenge and patch users succeeded in quitting for 9 months, that an additional 244 (+2%) would have succeeded if they all had quit without resort to NRT.

The CDC reports that 14.6 million Americans made quitting attempts of at least one day during 2004. Assuming 19% used the nicotine patch, gum or lozenge, applying the NCI's findings suggest that although 387,800 succeeded (12%), that an additional 55,400 (2%) would have succeeded if the FDA had not allowed the super-toxin "nicotine" to be approved as an aid to smoking cessation.

The obvious question becomes, how many of those 55,400 have now run out of time and chances? How many are about to needlessly lose their lives? Quitting nicotine abruptly does not mean quitting in ignornance and darkness. Nicotine dependency recovery knowledge truly is power but since June 2000 economic and political muscle have displayed an amazing ability to suppress it.

Web pages implying that placebo performance
reflects cold turkey quitter study participation

Page Title & Link Owner

Representation

According to one study, 90 percent of "cold turkey" quitters start smoking again within six months.

Glaxo
Smith
Kline

That's why most cold turkey quitters fail. They have plenty of willpower but aren't prepared for the strong withdrawal cravings. Using Commit stop-smoking lozenge to help relieve those cravings doubles the likelihood of success.
Clearing the Air: Get ready to start a smoke-free life National
Cancer
Institute
Quitting "cold turkey" isn't your only choice ... Using these medicines can double your chances of quitting for good.
Cold Turkey Nicabate CQ All forms of NRT approximately double a person's chances of quitting smoking compared with going cold turkey.
Cold Turkey Is for Leftovers Pfizer However, statistics show that up to 95 per cent of smokers who try to quit cold turkey will not succeed. Smokers who seek therapeutic assistance while quitting smoking can double their chances of success.
Don't Go Cold Turkey Glaxo
Smith
Kline
Research shows that 97 percent of those who try to quit cold turkey don't succeed and that using a nicotine replacement therapy can double a smoker's chances of quitting for good.
Double Your Chances of Quitting Smoking American
Cancer
Society
Quitting smoking can be tough, but we have come up with some ways you can double your chances of being successful....Research has shown using a quitting smoking medication, such as bupropion (Zyban), varenicline (Chantix), or the nicotine patch, gum, nasal spray, inhaler, or lozenge, can double your chances of successfully quitting
Fact Sheet Glaxo
Smith
Kline
On average, NRT products, including NicoDerm CQ, can double the chances of quitting versus "cold turkey" when used as directed.
Five common myths about quitting smoking U.S.
Surgeon
General
Myth 4: The best way to quit is "cold turkey."
Fact: The most effective way to quit smoking is by using a combination of counseling and nicotine replacement therapy (such as the nicotine patch, inhaler, gum, or nasal spray) or non-nicotine medicines (such as bupropion SR).
GSK's Response to N.Y. Times Article Glaxo
Smith
Kline
Nicotine replacement therapy (NRT) products offer a step-down therapy that doubles a smoker's chances of quitting versus cold turkey.
Guide to Quitting Smoking American
Cancer
Society
For most people, the best way to quit will be some combination of medicine, a method to change personal habits, and emotional support...About 5% to 16% of people are able to quit smoking for at least 6 months without any medicine to help with withdrawal. Several articles in medical journals have reported that between about 25% and about 33% of smokers who use medicines can remain smoke-free for over 6 months.
Help for Smokers Agency for Healthcare Research and Quality Studies show that almost everyone can benefit from these nicotine and non-nicotine replacement therapies. Nicotine Replacement Therapy * Nicotine patch. * Nicotine gum. * Nicotine nasal spray.* Nicotine inhaler.* Non-Nicotine Therapy * Bupropion SR.*
Hollywood stars team up to help smokers quit ... Glaxo
Smith
Kline
"Using the NicoDerm CQ ThinFlex patch as directed can double a smoker's chances of quitting cigarettes versus a cold turkey quit attempt, and adding this online support program greatly improves the chances of success."
It's ok to inhale Pfizer Statistics show that only five per cent of smokers who try to quit cold turkey will succeed. Smokers who seek therapeutic assistance with an NRT can double their chances of success when compared to placebo.
Medications
that can help
Philip Morris USA According to the National Institutes of Health, using one of these scientifically-tested treatments could double your chances of quitting smoking.9 Experts now say that all smokers trying to quit should think about using medication, especially those who smoke ten or more cigarettes a day. 10 All of these FDA-approved methods have been found to be safe and effective when used as directed.
Myths And Truths About Therapeutic Nicotine Medical News Today Therapeutic nicotine products double a smoker's chance of successfully quitting over cold turkey.
NicoDerm® CQ® gives 'the patch' a makeover Glaxo
Smith
Kline
Using the NicoDerm CQ ThinFlex patch as directed can double a smoker's chances of quitting cigarettes versus a cold turkey quit attempt, and adding this online support program greatly improves the chances of success.
Nicoderm CQ patches are rebranded ... Discount Nicotine Gum.com Did you know that studies have shown that using Nicoderm CQ patches can almost double your chance of quitting compared to going cold turkey.
Nicotine addiction facts & stats

Glaxo
Smith
Kline

A study found over 90% of those who tried to quit "cold turkey" were smoking again within six months ... Therapeutic Nicotine relieves nicotine cravings and can double your chances of success.
Nicotine replacement therapy backgrounder Glaxo
Smith
Kline
In general, NRTs have been shown to double a smoker's chances of quitting versus cold turkey, or unassisted quitting, which is still the most commonly used method.
Nicotine Substitutes American Heart Association The consistent use of one of these products doubles a person's chances of quitting smoking.
November is national lung cancer awareness month U.S. Dept. Veterans Affairs While some smokers think they have to quit "cold turkey," it's important to know that using nicotine replacement medications such as the patch or gum may help double or triple the likelihood that an attempt to quit will be successful.
Online Guide to Quitting National Cancer Institute Using these medicines can double your chances of quitting for good.
Pathways to Freedom Centers for Disease Control Using products that replace the nicotine in cigarettes and cigars for a short time can greatly increase the chances of a smoker quitting.
Quitting American Legacy Foundation Use of the patch, nasal spray or bupropion doubles the likelihood that you will succeed
Quit Smoking American Heart Association Pharmacotherapy can more than double the likelihood of successful quitting.
Smoking and Tobacco Use Cessation U.S. Dept. Veterans Affairs Medications also double your chances of success ... Remember, only turkeys try to quit cold turkey!
Smoking Cessation Eckerd Quitting "cold turkey" is very hard and does not always work. Nicotine replacement products can double your chance of quitting compared with no assistance.
Stub out that butt

Time Magazine

What a lot of smokers don't realize is that the most popular method of quitting--just stopping, a.k.a. going cold turkey--is the least effective. Studies show that getting intensive short-term counseling, taking drugs like Zyban (an antidepressant) or using one of the many nicotine aids (gum, patch, inhaler, nasal spray, lozenge) all double the chance of success.
Too few use effective methods to quit smoking

University of Wisconsin

Although new methods for quitting double or triple their chances for success, most smokers are still trying to quit "cold turkey."
Treating Tobacco Use and Dependence

U.S. Surgeon General

Michael C. Fiore

Regrettably, most of them will try to quit on their own or, in other words, "cold turkey." As a result, only one million of them will be able to quit and stay tobacco-free. The treatment recommendations outlined in the PHS Guideline that we are releasing today will substantially increase the success rate. In fact, if every doctor, nurse, dentist, or other health care provider and health plan uses this tool in practice across America, we can double quit rates, from one to at least two million new quitters each year.
Way2Quit (link nor longer available) Glaxo
Smith
Kline
But using therapeutic nicotine can double the chances of quitting successfully, over cold turkey.
What nicotine replacement therapy (NRT) is Pfizer Studies have shown that nicotine replacement therapy can double a smoker's chances of quitting versus cold turkey!
Why use patches? Nicabate CQ Nicotine patches are recognised by the medical community to be effective in helping smokers to quit. NicabateCQ Patches have been clinically proven to double a person's chances of quitting successfully (vs. cold turkey).
You can quit smoking Agency for Healthcare Research and Quality Five Keys for Quitting ... 4. Get medication and use it correctly... Everyone who is trying to quit may benefit from using a medication
You can quit smoking U.S. Surgeon General Five Keys for Quitting ... 4. Get medication and use it correctly... All of these medications will more or less double your chances of quitting and quitting for good


This article was released on March 12, 2007 and last revised March 18, 2007 at 1214 EST


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Written March 12, 2007 and last updated December 27, 2013 by John R. Polito