Study to Examine Safety, Tolerability, and Effect on Body Weight of Metreleptin Administered in Conjunction With Pramlintide in Obese and Overweight Subjects

Inclusion Criteria:

• 18 to 65 years old.
• Is obese (Body Mass Index [BMI]>=30kg/m^2 and <=35kg/m^2); or overweight (BMI>=27kg/m^2 and <30kg/m^2.
• Has stable body weight, i.e., not varying by >3% within 3 months prior to study.
• Has not been treated over the past 3 months or is currently treated with any of the following medications: Oral contraceptives (female subjects); Hormone replacement therapy (female subjects); Metformin for the treatment of polycystic ovary syndrome (female subjects); Antihypertensive agents; Lipid-lowering agents; Thyroid replacement therapy; selective serotonin reuptake inhibitors (SSRIs).
• Is comfortable with having repeated telephone contacts with a lifestyle counselor during the study.
• Is a nonsmoker (has not smoked for at least 6 months prior to the study).

Exclusion Criteria:

• Has a medical history (e.g., morbid childhood obesity) and/or physical characteristics suggestive of genetic obesity or syndromatic obesity (e.g., Prader-Willi syndrome, Bardet-Biedl syndrome).
• Is currently enrolled or plans to enroll in a diet, weight loss, or exercise program with the specific intent of losing weight (subjects who have been following an exercise regimen resulting in stable weight maintenance for at least 2 months prior to enrollment are eligible for study inclusion)
• Has been treated over the past 2 months, is currently treated, or is expected to require or undergo treatment with *antiobesity agents (prescription or over-the-counter), *antipsychotic agents, *antiepileptic agents, *antidepressant agents, *drugs that directly affect gastrointestinal motility, *antidiabetic medications.
• Has previously received treatment with metreleptin or pramlintide in a clinical study or has received prior treatment with pramlintide (SYMLIN®).
• Has received any investigational drug within 30 days or within a period corresponding to 5 half-lives of that drug, whichever is greater, prior to this study starting.
• Has had a major surgery or a blood transfusion, or has donated blood over the past 2 months or is planning to donate blood during the study.
• Has had liposuction, abdominoplasty, or similar procedure over the past year or is planning to have such a procedure during the study.