A Study of the Effects of Oxytocin in Adults With Binge-eating Disorder

Eligibility Criteria

• * Males and females, 18-70 years old
• * BMI greater than or equal to 18.5
• * BED as assessed by Structured Clinical Interview for DSM-5 Disorders (SCID-5-RV) OR Other Specified Feeding or Eating Disorder (OSFED) - Binge-eating disorder (of low frequency and/or limited duration) (SCID-5-RV) OR Bulimia Nervosa (BN) through excessive exercise and/or fasting to avoid gaining weight after episodes of binge eating. For individuals with OSFED-BED, the frequency of subjective and objective binge eating episodes will meet the frequency (Criterion D) for BED.
• * Substance use disorder active within the last 6 months, or clinical suspicion of ongoing substance use disorder at the discretion of the study clinician at the time of screening based on history and/or laboratory results
• * Medication changes that have not reached steady state concentration, measured by the equivalent of 5 half-lives of that medication
• * Use of medications for binge eating disorder or weight loss unless at a stable dose for at least 12 weeks
• * History of any of the following medical conditions: inflammatory bowel disease; epilepsy; untreated thyroid disease
• * History of known cardiovascular disease, including coronary artery disease, heart failure, reduced ejection fraction, hypertrophic cardiomyopathy, ventricular arrhythmias, or prolonged QT
• * Hematocrit \>2% below normal
• * Hemoglobin A1c \>8%
• * Use of insulin
• * ALT or AST \>2.5 times upper limit of normal
• * Glomerular filtration rate \< 60 mL/min
• * Hyponatremia. Note that, in order to be randomized, subjects must have Na ≥ 135 mEq/L.
• * Pregnancy or breastfeeding
• * Unwilling to use a medically acceptable form of contraception throughout the study period (female of child-bearing potential only)
• * History of psychosis or active suicidal ideation
• * Major depressive disorder likely to require initiation or change in active treatment
• * Borderline personality disorder as assessed by the McLean Screening Instrument for Borderline Personality Disorder (MSI-BPD)
• * Current nicotine use, unless stable use for at least 12 weeks.
• * Participation in any clinical study involving an investigational drug, device, or biologic within 1 month of randomization
• * Any significant illness, condition, or medication that the Investigator determines could interfere with study participation and impact data collection or subject safety