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David Katz, M.D.

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Qnexa: Desperate Measure for Desperate Times

Posted: 02/24/2012 11:46 am

The nearly unanimous recommendation of a 22-member FDA expert panel to rescind a prior decision and approve the weight loss drug Qnexa says something about the FDA, something about Qnexa, something about obesity, something about those suffering from obesity and most of all, something rather profound and quite ominous about our society.

About the FDA: No doubt, some will applaud and some will vilify the FDA if if it follows the advice of its expert panel, as it should, and approves Qnexa. Some will see the heavy hand of big pharma at work -- and, indeed, Vivus, the maker of Qnexa, had by all accounts lobbied pretty hard for this outcome.

But approval of Qnexa will represent the FDA doing its job, not some great scandal. The FDA raises and lowers the bar for approving drugs based on what else is available. A drug, for instance, that treats a life-threatening condition for which no other drug is available is likely to be approved, even if potentially quite dangerous. The drug just has to be less dangerous and more effective than having no drug at all.

At the other end of the spectrum, a drug may be quite effective and relatively safe, but disapproved if there are many other drugs to treat the same condition that are even nominally safer and/or more effective.

In other words, the FDA is constantly weighing risks and benefits. Nothing in medicine, and little in life, is entirely free of risk. Risk is justified by the potential benefit. Risk is also justified if it is a means of avoiding an even greater risk, which would, in fact, count among the benefits. A fairly dangerous drug or procedure may be the best option to treat an even more dangerous cancer or cardiac condition. Effective chemotherapy for acute leukemia can be quite toxic -- but less so than the leukemia itself. An intra-aortic balloon pump is no walk in the park, but it beats cardiogenic shock.

There is, at present, only one FDA-approved drug for weight loss, and it isn't very good. Other weight-loss drugs that have been approved at some point no longer are. The most promising drug of all in my opinion, rimonabant, was never approved in the U.S. because it meaningfully increased the risk of suicide. Qnexa did not have to be very good or very safe to produce 20 thumbs up. It just had to be better than... nothing.

About Qnexa: The drug, in fact, isn't very good. True, it does produce a weight loss of roughly 10 percent of body weight over a year or two in clinical trials, and does outperform placebo -- but so does every weight-loss drug ever tested.

Qnexa is a combination of two drugs, phentermine and topiramate, and frankly I don't much like either of them. Phentermine is an amphetamine-like stimulant, and very unlikely to be safe or suitable for long-term use. Among its common side effects is an elevation of blood pressure -- one of the complications of obesity itself. We gain little if a treatment causes the complications of the condition that we are treating to avoid such complications...

It's a bit harsh, I suppose, but I will nonetheless note that cocaine -- another stimulant drug -- produces weight loss, too. That doesn't make it a good idea.

Topiramate is an anti-seizure drug. It can, and often does, cause fatigue, brain fog and nausea. It is generally a bit difficult to get patients with epilepsy to keep taking such drugs because they often don't feel very well on them. But the risk of a grand mal seizure is a very potent incentive. It's hard to imagine anyone remaining on such a drug to keep off weight they have lost -- and history indicates clearly that if and when the drug is stopped, the lost weight is likely to be refound.

The FDA panel recommended approval of QNEXA only because so many of us are so heavy, and the ranks of useful weight loss drugs are so thin -- and desperate times call for desperate measures. Approval of QNEXA would reflect that... desperation.

About obesity: The approval of a not-very-good drug tells us a couple of things about obesity itself. First, it tells us that obesity remains a largely intractable problem, crying out for new solutions. Second, it tells us that after decades of trying, a not-very-good-drug is the best that big pharma, with all its resources, can do. It is quite reasonable to ask: Why?

We have developed potent treatments for cancer, heart disease, diabetes, infections, stroke and almost every other condition we might add to the list. Why can't we come up with one for obesity?

I have an answer. You would, I trust, expect that a fish with an infection could be treated with an antibiotic. But I also trust you would not expect any medicine to fix the problem of a fish out of water. There is nothing a pill could do, short of turning a fish into something other than a fish, that could fix the "out-of-water" problem. And obesity is just like that.

Just as it is normal for a fish to breathe in water and asphyxiate out of it, it is normal for humans to turn a surplus of calories into an energy reserve, namely, body fat. It's very hard to fix what isn't really broken.

What is broken -- for a fish out of water, and for humans drowning in calories and labor-saving technology, is the link between the creature and the habitat that nurtures it. You can save the fish -- just not with a pill. Throw it back in the water. More on that below.

About those with obesity: Vivus' intense interest in having the FDA revisit their prior decision about Qnexa, and the support of the FDA panel for approval, both suggest that there will be a market for this drug. If nothing else, it will serve as a potential alternative, at times, to bariatric surgery.

This tells us that many people with obesity are overwhelmed. They cannot fix the problem with the resources at their disposal, and they are desperate for any new option -- even an option that combines an amphetamine with an epilepsy drug. The victims of epidemic obesity need help they aren't getting, and will accept it even in the form of a pill you couldn't pay most people to take!

About our society: The most important message is here. Our search for a drug to treat obesity is testimony to a profound societal failure to address the root causes of the obesity epidemic.

A half century ago, there was dramatically less obesity. Very little about genes, metabolism or human nature has changed in the past five decades. We have epidemic childhood obesity now; we did not have it then. The ambient level of "personal responsibility" in 8 year olds has not changed over that span.

A dramatic change in the epidemiology of obesity is directly related to profound changes in our environments, food supply, activity levels and social norms. We have caused the obesity epidemic, by looking the other way as a staggering array of "advances" made ever more calories ever more temptingly available, and made physical activity ever more elusive.

The root cause and cure of all but rare cases of obesity resides with how we use our feet and forks. Pharmacotherapy is no substitute.

It's no substitute because it tends not to work well. It's no substitute because it comes at high cost, in dollars and side effects. It's no substitute because of the fish-out-of-water problem; drugs don't fix that. And it's no substitute, because we have epidemic obesity among adults and children alike. Do we envision the Qnexa family pack? If not, while adults are taking their drugs, what, exactly, will the kids be doing?

We cannot simply call for better use of feet and forks in a world that conspires mightily against them. We must pave the way, so health is achievable along a path of lesser resistance. We can demand personal responsibility, but we must also make sure people are suitably empowered to take responsibility for their health and the health of their families.

The problem we confront is a large flood of obesigenic factors. The solution must be like a levee. No one thing will fix this mess. No one idea, no one policy -- and certainly no one wonder drug. Every empowering program, policy and resource we make available is a sandbag in the levee. We can turn the tide, one sandbag at a time. But we will do so when, and only when, the levee tops the height of the flood.

I worry, though, that we will fail to do so as long as we keep holding out for that wonder drug. I worry that we won't commit to the fundamental solutions we need while preoccupied with pharmacotherapy and fantasies about quick and effortless fixes. I worry that we will neglect the right recipe in a futile search for the one "active" ingredient.

We can fix this mess -- safely, universally and decisively. But it won't be quick, and it won't be effortless. Few worthwhile things ever are.

There is, indeed, a role for pharmacotherapy for obesity -- as there is a role for surgery. But it should be a small role, because overwhelmingly, the problem can and should be fixed with feet and forks. It should be a small role because of the high monetary and human costs of anatomy-altering operations and potentially toxic drugs. Those who need these options should certainly have access to them, and for that reason, I don't protest the likely approval of Qnexa per se.

What I protest is any indulgence in the idea that this is a meaningful solution to the problem of epidemic obesity. I protest the attention and resources that get diverted from making the modern environment more salutary, more conductive to healthful use of feet and forks. As a society, we should be doing all we can -- and we are not! -- to make sure very few of us ever need the options of surgery or drugs.

FDA approval of Qnexa will represent a rather desperate measure at a desperate time for desperate individuals of a desperate society. So be it. But our desperate need to address this problem decisively is long overdue, and should be the mother of far better invention than this.

-fin

Dr. David L. Katz; www.davidkatzmd.com
www.turnthetidefoundation.org

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HUFFPOST SUPER USER
Chas53
03:20 PM on 02/28/2012
Read "The Pleasure Trap" by Douglas Lisle PhD
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Kellybelle22
Medicine. Marriage. Motherhood.
02:02 PM on 02/28/2012
Great article, David Katz! Qnexa scares me. It scares me above all because it is never going to be a substitute for healthy, reasonable eating and exercise, as you mentioned above. Yet it satisfies the "I'll take a pill and be cured" craving that lots of patients have.

I could not, in good conscience, prescribe this drug when it comes out. The potential side effects on the heart alone would have withheld my vote had I sat on the FDA panel who OKed it for market debut last week. Long, long ago, I lost excess weight I was carrying and have kept it off now for years. I did it with Weight Watchers, with regular OA participation, and with exercise. It really can be done.
10:59 AM on 02/28/2012
I modestly propose we quit making larger clothing and people will shrink to the occasion.
Seriously, Dr. Katz gives a very good synopsis of the problem and the challenge although I've read that Qnexa, in clinical trials, actually reduces blood pressure.

The hand that stocks the drug store, rules the world."
Kurt Vonnegut
10:41 AM on 02/28/2012
The food was changed in the USA, UK and Australia 30 years ago when dangerous food chemicals were added, creating "Cheap and Dangerous food"

The food today causes stubborn insulin If you have stubborn insulin you hold fat and have a hard time losing weight.

You can eat very little and the weight still does not come off.

Stubborn insulin will hold fat and diets won't work. When researchers used a specialized diabetes diet on overweight people all lost weight even those who did not have diabetes. The diet proved food chemicals are why dieting does not work this was proven on Midland News

here http://www.ourmidland.com/voices/health/article_062da990-12cf-11e1-a523-0017a4aa8e72.html
05:14 PM on 02/27/2012
It seems the day to day life has been slowly molded to cause problems that generate money and people are so busy and tired its hard to even care or realize it happened. I, and I'm sure many others, are tired of watching their grandparents, aunts and uncles die from cancer and its time for a change! Take something as simple as bread, which is way over consumed anyway, in my local common grocery store, Publix, there is not a single loaf of bread I would buy on the bread isle ( why do we need a whole isle for bread? ). The only option is in the frozen section where the Ezekiel bread is and most people don't even realize that section exists. This problem is huge and it must change. I think if people begin to change to real and healthy food it will have a dramatic change in much more that just obesity and disease. I think it may change the country in a big way because it seems that the food eaten also helps form the thoughts and actions of us all. If heaven were to come to earth I think real nourishment for all may be the path entrance. Its all very complicated yet so at the same time so simple. Society has complicated it and we grew up in it so changing in some ways makes the individual a bit of an outcast and that needs to change as well.
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William Anderson LMHC
Licensed Psychotherapist, Weight Control Expert
10:28 AM on 02/25/2012
Not all obesity problems are equal. Prader-Willi Syndrome is one example showing that eating compulsion and behavior sometimes has irresistible biological forces that have nothing to do with environment or learning/conditioning. Likewise, we have seen compulsive overeating generated by drugs where it had never existed before.

Obsessive Compulsive Disorder and Bipolar Disorder are cases of systems that are disregulated. All of us have mood experience that moves up and down, and all of us have impulses and drives to do things to relieve the anxiety of them being undone. With some of us, the brain function that regulates this experience is out of order. In those people, it appears there is neurochemical disregulation that requires alteration to assume a more normal function. Otherwise, drugs would not produce symptom relief. Perhaps some individuals with pathological eating behavior are suffering brain dysfunction that only medication will resolve.

All of us experience impulses and drives that we must control to have our lives go where we want. With some of us, that is only achievable with drug therapy. I think it is so with some people who cannot control their eating obsessions and compulsive behavior. For that reason, I hope we continue to search for medications that address this. For my thoughts on the relation between the obesity problem and weight loss pills, please read my article: http://theandersonmethod.com/qnexa-weight-loss-pill/

William Anderson, LMHC
Author of 'The Anderson Method - Secrets of Permanent Weight Loss'
www.TheAndersonMethod.com
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sabelmouse
i love to tumble , ask me why .
11:22 AM on 02/25/2012
i find it interesting , for want of a better word, that i developed an eating disorder/anorexia and now have ocd. apparently there is a connection.
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William Anderson LMHC
Licensed Psychotherapist, Weight Control Expert
12:00 PM on 02/25/2012
Good to connect again!

Yes. Talk to anyone who has worked with eating disorders and you'll hear of a high correlation.
06:49 PM on 02/24/2012
Kudos to Carolyn K for her astute observations, and also to the person who mentioned how the stock went 2x in value after the fda (which also, like political races, needs to have the corporate sponsor $$ removed) approved it. It is so wrong on so many levels to have to take all these drugs for every possible thing, instead of taking self-responsibility. And the more tv is watched, the more people cram garbage down their throats. Good work Miss K, keep walkin' and talkin'.
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Sharon Hanson
Skeptical of the *pseudo-skeptics*
09:24 AM on 02/28/2012
I was never over weight in my life until getting injected with the highly toxic gadolinium based contrasting agents. Gadolinium is a heavy metal. This is a scam and there is a solution, gut the FDA, the CDC and the NIH. Put in another agency that does its job without influence from pharma or better yet let the alternative community and health insurance companies determine whether these drugs should be put on the market. Most of them poison and only treat symptoms anyway so nothing of value is lost.
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06:13 PM on 02/24/2012
I live the "Eat To Live" approach. I've seen som impresive and long term results with folks that have adapted that way of eating.
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06:10 PM on 02/24/2012
Great thing for the manufacturer is that a person would basically have to take it for life. No wonder the stock doubled after the announcement.
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Sharon Hanson
Skeptical of the *pseudo-skeptics*
09:26 AM on 02/28/2012
Likely the stock doubled and the politicians in Washington DC made a fortune on the stock after FDA approval. Anyone that trusts the drugs that are being approved today are likely already sickened from some other poison they have ingested. We're a sick, sick nation.
05:10 PM on 02/24/2012
Yes, we are a product of our society, and right now society is not in our favor with respect to providing healthy choices. This, however, is not the real issue. The real issue is growing egoism, growing self-centeredness. Over thousands of years, humanity's growing ego seemingly served us well, providing many advances in many different fields. Only now, that very same ego has grown to the point of revealing its true nature: one of separation, hatred, exploitation, even murder. This is why obesity was not such a problem a half century ago. Our egos were less developed then.

Today, while the egoism within us keeps growing, we've reached the limit of possibilities to meet its incessant demands for fulfillment. Further, any fulfillment we do receive quickly vanishes, leaving us feeling emptier than before. It is this sensation of emptiness that causes many people to eat beyond full. Plus, the ego's demands for instant gratification, without regard to future consequences, makes it difficult to overcome the immediate desire for rest and pleasure, much less the choice of a painful "anything" in favor of a future "something."

The solution is to learn how to work "above" the ego, in favor of healthy attitudes towards ourselves and healthy relationships between each other. This is not psychology, but rather, new "programming" installed over the old, egoistic one. For this, we need both education and society's influence. This is when we will conquer obesity, depression, suicide—all of today's problems.
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Sharon Hanson
Skeptical of the *pseudo-skeptics*
09:31 AM on 02/28/2012
Fanned and faved. Drugs are not the solution.
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Carolyn Kostopoulos
02:20 PM on 02/24/2012
part 2

americans have been duped into serving as lab rats for food processing companies. HFCS doesn't exist in nature so you shouldn't eat it. only eat what grows in the ground or on a tree, what swims in water, roams the land or flies in the air. this means you'll have to cook. no time? again- turn off the TV and you'll have time.
support small local farmers who steward the land and you'll slow down climate change one fork at a time. better eating and exercise habits can change way more than your waistline
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Carolyn Kostopoulos
02:19 PM on 02/24/2012
part 1
feet and forks solve many other problems too, while drugs and surgery add only to the wallets of the medical/ pharmacological establishment.
get out and walk- you burn calories without burning oil. i walk 28 blocks to & from work each day, saving subway money and avoiding being crammed like a sardine in a dirty underground tunnel. you meet your neighbors, feel the weather, get some sun.
don't have time to walk? turn off the TV- you'll have lots of time and you'll have less need to buy crap since you're not watching commercials.
eat real food. you'll have less packaging to toss. all your peels & cores can be composted. you'll give less money to monsanto, wal-mart, macdonalds & coca cola
you'll have better health. yes indeed, you can give up all those awful low highly processed "foods" and enjoy actual butter, full fat delicious raw milk, heavy cream, grass fed meat and eggs and weigh less than you do on a diet of snackwells.
i have friends who live on diet soda and phony lab made "foods"- they are fat. i eat real foods that contain real fats and i am thin. i never consider the calories. what's wrong with this picture?
12:41 PM on 02/24/2012
Really great article! The profound effects of our environment and society on this epidemic needs to be a part of a greater conversation. I am surprised and frustrated by how many people I come across that think individuals just need to eat less to not be obese. While this is to some extent true, it is much more complex and we need to create a more supportive and hospitable environment for us to get anywhere.
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David Katz, M.D.
Director, Yale Prevention Research Center; Editor-
04:57 PM on 02/24/2012
Thank you; and amen!