Cover Image: September 2010 Scientific American Magazine See Inside

Fat Attack: Will Three New Antiobesity Drugs Beat a Checkered Safety History?

The U.S. Food and Drug Administration prepares to weigh the safety and efficacy of new flab fighters















Share on Tumblr

But problems could still occur, considering that patients with existing mental health issues are often excluded from obesity drug trials, so side effects not seen in trials could emerge when this population uses the medication. Such a situation may have occurred in 2007, when Sanofi-Aventis hailed Rimonabant, another neurotargeted drug, as a safe and effective weight-loss treatment. “The press releases looked great,” Greenway remembers. Shortly after the drug was released in Europe, however, reports of Rimonabant-related suicides began trickling in. The drug was never approved in the U.S. and was later recalled in Europe.

As a result, the FDA will likely view the new antiobesity drugs with caution. In July an FDA advisory panel narrowly voted against Qnexa, citing concerns over side effects. The FDA is not required to act on the panel’s recommendation, though.

Ed J. Hendricks, a physician who runs a weight-loss center in Sacramento, Calif., hopes at least one of the three drugs will be approved. “As the pathways behind obesity are better understood, the drugs are getting more specific,” he says. The question is whether they will act specifically enough and prove safe for wide use.



This article was originally published with the title Fat Attack.



Subscribe     Buy This Issue

Already a Digital subscriber? Sign-in Now
If your institution has site license access, enter here.

ABOUT THE AUTHOR(S)

Erica Westly is a freelance science writer based in New York City.


Rights & Permissions

5 Comments

Add Comment
View
  1. 1. drkathyday@gmail.com 11:15 PM 9/6/10

    None of these new medications appear to have the substantial, rapid weight loss that surgery provides. Losses of 5%-10% are usual, over a period of months. Tests to see whether weight loss is sustained are not yet available. So for a 6 foot man weighing 275, that is, about 100 pounds over his ideal weight, these medications could be expected to help him lose about 12 to 25 pounds over a period of several months. While this is beneficial, it is not the major impact of bariatric surgery.

    Reply | Report Abuse | Link to this
  2. 2. devinci 10:33 AM 9/14/10

    This particular condition has the unique qualifier that it can only become epidemic in a culture of excess. Which suggests that the root of the problem for the majority, is one of self-control and moderation. Spending money on bandages to the problem is not a logical solution.

    Reply | Report Abuse | Link to this
  3. 3. mikecimerian 03:52 AM 9/15/10

    @devinci I agree.

    The whole concept of diet exists in denial of our biological heritage. The body interprets any sudden shortage as a signal to metabolize fat. It is a survival trait.

    Metabolism has to remain "motivated" which means that we have to tolerate certain thresholds of hunger.

    Who knows we may even become light headed once in a while, it isn't a bad experience.

    Reply | Report Abuse | Link to this
  4. 4. galaxy_man 02:23 PM 9/15/10

    Anti-obesity drugs will never work because they always address the symptoms, never the problem.

    Reply | Report Abuse | Link to this
  5. 5. joenn 10:37 PM 9/17/10

    This may sound like a dumb question but what is wrong with just eating right? It doesn't take a Mensa member mentality to figure out that the reason that most fat people are fat is because of their really bad eating habits. There is no way that the body can work right if it doesn't have the right nutrients to do what it does. It is not surprising that people are sick, fat, and hungry all the time. The bad food they are eating is making them sick, fat, and hungry. Drugs are not the answer either. They are part of the problem. They damage the body so it handicaped even more. The real solution is to eat the food that humans were intended to eat. Fruits, vegetables, and grains processed as little as possible. The local fast food places have none of the above.

    Reply | Report Abuse | Link to this
Leave this field empty

Add a Comment

You must sign in or register as a ScientificAmerican.com member to submit a comment.
Click one of the buttons below to register using an existing Social Account.

More from Scientific American

See what we're tweeting about

Scientific American Editors

Tweets could not be retrieved at this time

Free Newsletters


Get the best from Scientific American in your inbox

Solve Innovation Challenges

Powered By: Innocentive

  SA Digital
  SA Digital

Science Jobs of the Week

Email this Article

Fat Attack: Will Three New Antiobesity Drugs Beat a Checkered Safety History?: Scientific American Magazine

X
Scientific American MIND iPad

Tap into your MIND

Get Both Print & Tablet Editions for one low price!

Subscribe Now >>

X

Please Log In

Forgot: Password

X

Account Linking

Welcome, . Do you have an existing ScientificAmerican.com account?

Yes, please link my existing account with for quick, secure access.



Forgot Password?

No, I would like to create a new account with my profile information.

Create Account
X

Report Abuse

Are you sure?

X

Institutional Access

It has been identified that the institution you are trying to access this article from has institutional site license access to Scientific American on nature.com. To access this article in its entirety through site license access, click below.

Site license access
X

Error

X

Share this Article

X