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Olanzapine Versus Placebo for Outpatients With Anorexia Nervosa

2015-05-26 21:58:42 | BioPortfolio

Summary

Anorexia Nervosa (AN) is a serious illness associated with substantial morbidity and mortality. Weight restoration is a treatment priority, and better treatments are needed.

Description

This study is a 16-week randomized, double-blind, placebo-controlled trial of olanzapine in adult outpatients with AN. 160 individuals with AN, ages > 18, will be randomly assigned to receive olanzapine or placebo for 16 weeks together with a medication management treatment. Primary outcomes will include weight gain as well as psychological symptoms known to be associated with AN, including obsessionality, mood, and anxiety.

This project is based on evidence from a recently completed 8-week pilot study comparing the efficacy of olanzapine to placebo in outpatients with AN (PI: Evelyn Attia, MD), as well as a recently published 12-week trial of olanzapine vs placebo (Bissada et al, Am J Psychiatry, 2007) in which outpatient treatment with olanzapine was associated with weight improvement, improved psychological status, and no untoward metabolic effects among low-weight patients.

The investigators hypothesize that among underweight adult outpatients with AN receiving olanzapine vs. placebo, together with medication management treatment: 1)patients with AN receiving olanzapine will gain weight at a faster rate than those receiving placebo; and 2) patients with AN receiving olanzapine will demonstrate greater reduction in psychological symptoms, including obsessionality, mood, anxiety and eating disorder symptoms, than those receiving placebo.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Anorexia Nervosa

Intervention

Olanzapine, Placebo

Location

Johns Hopkins
Baltimore
Maryland
United States
21287

Status

Recruiting

Source

New York State Psychiatric Institute

Results (where available)

View Results

Links

Published on BioPortfolio: 2015-05-26T21:58:42-0400

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Medical and Biotech [MESH] Definitions

The lack or loss of APPETITE accompanied by an aversion to food and the inability to eat. It is the defining characteristic of the disorder ANOREXIA NERVOSA.

An eating disorder that is characterized by the lack or loss of APPETITE, known as ANOREXIA. Other features include excess fear of becoming OVERWEIGHT; BODY IMAGE disturbance; significant WEIGHT LOSS; refusal to maintain minimal normal weight; and AMENORRHEA. This disorder occurs most frequently in adolescent females. (APA, Thesaurus of Psychological Index Terms, 1994)

A disorder associated with three or more of the following: eating until feeling uncomfortably full; eating large amounts of food when not physically hungry; eating much more rapidly than normal; eating alone due to embarrassment; feeling of disgust, DEPRESSION, or guilt after overeating. Criteria includes occurrence on average, at least 2 days a week for 6 months. The binge eating is not associated with the regular use of inappropriate compensatory behavior (i.e. purging, excessive exercise, etc.) and does not co-occur exclusively with BULIMIA NERVOSA or ANOREXIA NERVOSA. (From DSM-IV, 1994)

Misunderstanding among individuals, frequently research subjects, of scientific methods such as randomization and placebo controls.

An effect usually, but not necessarily, beneficial that is attributable to an expectation that the regimen will have an effect, i.e., the effect is due to the power of suggestion.

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