top of page

LEAP

Long-Term Effectiveness of the Anti-Obesity Medication Phentermine

LEAP is going to test one specific anti-obesity medication called phentermine to see how well it works in helping people get to a lower body weight and improve their health.

Trial Features

Double-Blinded Study

Both the participants and the researchers working with the participants will be blinded to the treatment assignment.

Multi-Site

The LEAP trial will enroll 1,000 participants across 5 clinical sites, all in the United States.

2 Intervention Arms

You will be randomly assigned, like the flip of a coin, to take phentermine or an identical placebo. A placebo is just a fake pill that looks like the real thing but doesn't do anything. In addition to the study drug or placebo, all participants will receive the WW (formerly known as Weight Watchers) online program.

Treatment Centered

Obesity is a chronic disease that requires long-term treatment. We want to see how safe this medication is when used long term.

sleep.jpg

Introducing SLEAP: A New LEAP Sub-Study!

​

SLEAP aims to explore how the LEAP study treatment affects sleep patterns, daily rest and activity.

​

If you are interested in learning more about SLEAP and its eligibility criteria, click below for details. 

bottom of page