This is a retrospective, descriptive study that involves de-identified data consisting of weight changes, pertinent vital signs and laboratory values influenced by body weight, and healthcare utilization of patients prescribed lorcaserin at The Center for Weight Management at the Scripps Clinic in San Diego, CA.

All patients who initiated treatment with Lorcaserin during the review period will undergo chart review. The primary endpoint will be weight change in patients on Lorcaserin and average duration of Lorcaserin treatment over time (up to 1 year). Secondary endpoints will include changes in vital signs, liver function, glucose, and lipids. In addition, time on treatment, reasons for discontinuation of medication, and changes in healthcare utilization (to include inpatient and outpatient utilization) will be examined. This is a retrospective, one-arm observational study that will include chart reviews of 157 patients who have been treated in the clinic.

Inclusion Criteria:

• Received at least one prescription for Lorcaserin treatment
• At least 18 years of age or with guardian/parent able to consent for a minor

Exclusion Criteria:

- Patient under the age of 18 at time of index date

Study population includes 157 patients seen and evaluated in an insurance-based medical weight loss clinic in San Diego, CA. Eligible participants will include patients who are overweight or obese, and who received at least one prescription for Lorcaserin treatment.