Cognitive-Behavioral and Pharmacologic (LDX) Treatment of Binge-Eating Disorder and Obesity: Medication Change for Non-Responders

Inclusion Criteria: * 18 to 64 years old * Meets DSM-5 criteria for binge-eating disorder * BMI 27-30 with a controlled obesity-related co-morbidity; or BMI ≥ 30 and \<50 * Medically cleared as determined by EKG and medical record review * Available for the duration of the treatment and follow-up (18 months) * Read, comprehend, and write English at a sufficient level to complete study-related materials * Able to travel to study location (New Haven, CT) for weekly visits Exclusion Criteria: * Previous history of problems with LDX or other stimulants * Current psychostimulant use or use of any medication for ADHD * Current use of study medications: LDX (Vyvanse), Bupropion (Wellbutrin, Zyban), Naltrexone, or Contrave * History of congenital heart disease, known structural cardiac abnormalities, cardiomyopathy, serious heart arrhythmia, coronary artery disease, cerebrovascular pathology including stroke, exertional chest pain, uncontrolled high blood pressure, and other serious heart problems. * History of severe renal, hepatic, neurological, or chronic pulmonary disease or other serious, unstable medical disorder. * Current uncontrolled hypertension * Current uncontrolled type I or II diabetes mellitus * Current uncontrolled thyroid illness * Gallbladder disease * Co-occurring severe mental illness requiring hospitalization or intensive treatment * Endorses current active suicidal or homicidal ideation with intent or plan * History or current alcohol or substance use disorde…