Incomplete Total Body Protein Recovery in Adolescent Patients With Anorexia Nervosa

NCT ID: NCT03334032

Last Updated: 2017-11-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

154 participants

Study Classification

OBSERVATIONAL

Study Start Date

2004-07-31

Study Completion Date

2010-07-31

Brief Summary

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The study aimed to assess protein accretion during weight gain in adolescent patients with Anorexia nervosa

Detailed Description

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Background: Bone health and growth during adolescence require adequate Total Body Protein (TBPr). Re-nutrition for patients with anorexia nervosa (AN) should aim to normalize body composition, i.e. recovery of fat mass and TBPr.

Objective: The study intended to analyze predictors of protein status, including exercise status, in adolescents with AN, and to investigate whether weight gain would replete body protein deficits.

Methods: The investigators assessed TBPr in a longitudinal, observational study as height-adjusted nitrogen index (NI) using in-vivo neutron activation analysis in adolescents with AN at the commencement of refeeding (T0), as well as seven months thereafter (T1), and in age-matched normal weight controls. Lean tissue and fat mass were assessed with Dual-Energy X-Ray Absorptiometry (DXA). BMI, BMI-SDS and lean tissue mass were tested as predictors of protein status using Receiver Operating Characteristic (ROC) analysis.

Conditions

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Anorexia Nervosa

Keywords

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Body composition Total body protein nutritional recovery Exercise status In-vivo neutron activation analysis Protein depletion

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Inpatient treatment for Anorexia nervosa

Adolescents with anorexia nervosa assessed

1. at baseline: on admission to inpatient treatment
2. at follow-up: 6 months after admission on outpatient basis

Inpatient treatment for Anorexia nervosa

Intervention Type OTHER

Nutritional rehabilitation in a clinic with specialized eating disorder service

Controls

Adolescent healthy and normal weight controls (matched for gender and age), assessed at one point of time

No interventions assigned to this group

Interventions

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Inpatient treatment for Anorexia nervosa

Nutritional rehabilitation in a clinic with specialized eating disorder service

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* diagnosis of anorexia nervosa (DSM-IV)
* aged 12 - 19 years
* female gender

Exclusion Criteria

\- existence of a further disease with effect on body composition

Controls:

* no known disease
* normal weight
Minimum Eligible Age

12 Years

Maximum Eligible Age

19 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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University of Sydney

OTHER

Sponsor Role collaborator

Charite University, Berlin, Germany

OTHER

Sponsor Role lead

Responsible Party

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Dr. Verena Haas

Principle Investigator, Clinical Researcher

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Michael R Kohn, Prof.

Role: PRINCIPAL_INVESTIGATOR

University of Sydney

Other Identifiers

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TBN in AN

Identifier Type: -

Identifier Source: org_study_id