Is This an Obesity-Drug Success or Failure?

Arena Pharmaceuticals (NASDAQ: ARNA  ) and VIVUS (NASDAQ: VVUS  ) are the two stocks most typically associated with obesity drugs, but diabetes-drug maker Novo Nordisk (NYSE: NVO  ) is also trying to enter this space. The company is completing phase 3 clinical trials in an attempt to get Victoza approved as a weight-loss drug for obese and overweight patients with type 2 diabetes.

After reporting data from a clinical study today, shares of Novo Nordisk fell almost 5%. In the following video, health-care analyst Max Macaluso discusses what this news means for investors and how this drug fits into the obesity-drug market.

Who will win the obesity-drug market?
Can VIVUS pick up its lagging sales and fend off the competition, or will Arena Pharmaceuticals reign supreme in the obesity space? If you're in the dark, grab copies of The Motley Fool's premium research reports on VIVUS and Arena Pharmaceuticals to stay up to date. Senior biotech analyst Brian Orelli gives investors the must-know information, including an in-depth look at the obesity market and reasons to buy and sell both stocks. Click now for an exclusive look at Arena and VIVUS -- complete with a full year of free updates -- today.