The Role of Estrogen in the Neurobiology of Eating Disorders
Purpose
This is a randomized, double blind, placebo-controlled study of the effects of transdermal estradiol versus placebo on cognitive flexibility, reward processing, and eating disorder pathology in hypoestrogenemic female adolescents and young adults (ages 14-35 years) with an eating disorder characterized by extreme dietary restriction and/or excessive exercise. Subjects will be randomized 1:1 to 12 weeks of transdermal estradiol with cyclic progesterone or placebo patches and cyclic placebo pills. Study visits include a screening visit to determine eligibility and visits at baseline, 8 weeks, and 12 weeks. Study procedures comprise behavioral, neuroimaging, and endocrine assessments.
Conditions
- Eating Disorders
- Hypoestrogenemia
Eligibility
- Eligible Ages
- Between 14 Years and 35 Years
- Eligible Genders
- Female
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- Female - 14-35 years - Bone age ≥13.5 years (applicable only for participants <16 years) - Clinically significant eating disorder characterized by restriction and/or excessive exercise and high drive for thinness - Hypoestrogenemia: Oligo-amenorrhea defined as lack of menses for ≥3 months within a 6-month period of oligomenorrhea (cycle length ≥5 weeks) or absence of menses at >15 years if premenarchal or low estradiol levels evaluated by the study physician - Low or normal weight defined by a body mass index that is <85th percentile for 14-18 year olds and a body mass index <25 kg/m2 for adults
Exclusion Criteria
- Suicidal ideation where outpatient treatment is determined unsafe by study clinician - Other causes of oligo-amenorrhea, unless a study clinician determines that missed menstrual periods are more likely a consequence of restrictive eating - Medications that contain estrogen ± progesterone within the past 3 months - Levonorgestrel-releasing intrauterine device if subject is unable to provide two to three weekly blood samples for estradiol of if estradiol levels are determined to be too high by study doctor - Neurological or psychiatric disorders that may impact neural circuitry of interest - Lifetime history of seizure disorder or electroconvulsive therapy - Pregnancy/breastfeeding - Gastrointestinal tract surgery - Contraindications to estrogen use - Any other significant illness or condition that the investigator determines could interfere with study participation or safety or put the subject at any unnecessary risk
Study Design
- Phase
- Phase 2
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel Assignment
- Primary Purpose
- Treatment
- Masking
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Arm Groups
Arm | Description | Assigned Intervention |
---|---|---|
Experimental 17-β estradiol with cyclic progesterone |
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Placebo Comparator Placebo |
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Recruiting Locations
Massachusetts General Hospital
Boston, Massachusetts 02114
Boston, Massachusetts 02114
More Details
- Status
- Recruiting
- Sponsor
- Massachusetts General Hospital