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Self-Injury: Diagnosis and Treatment

2014-08-27 03:55:01 | BioPortfolio

Summary

Self-injurious behavior is behavior in which a person hurts or harms himself. This behavior sometimes occurs in people with mental retardation or autism. This study will evaluate self-injurious behavior in people with mental retardation or autism and will test the effectiveness of new treatments.

Description

It is unknown why some people with mental retardation and/or autism repeatedly and persistently injure themselves, some to the point of tissue damage and permanent scarring. Unraveling this mystery poses paradoxical biomedical and behavioral science questions and creates deeply troubling problems for practitioners and family members of affected individuals. Over the past decade, many cases of self-injurious behavior (SIB) have been treated successfully using behavioral interventions that teach communication and other functional skills. However, practical problems of implementation, costs associated with long-term treatment, and cases with no clear social profile suggest that there is still much to be learned about why people self-injure. Some forms of self-injury may involve intense stimulation of body sites sufficient to elicit the release and receptor binding of endogenous opioid peptides. This study will evaluate variables common to SIB and the neurophysiology of pain regulation. The study will also clarify the role of the endogenous opioids and pain mechanisms in self-injury.

Participants with mild to profound mental retardation and/or autism will be observed for frequency of self-injury, duration and intensity of self-injurious behavior, and where on the body that behavior is directed. Following this characterization, participants’ saliva will be noninvasively examined for substance P, met-enkephalin, and cortisol as markers for altered pain transmission and predictors of response to treatment. After screening and SIB subtyping (i.e., social, nonsocial, or mixed), 37 participants whose self-injury is primarily nonsocial or mixed will be evaluated over 16 weeks. Participants will be randomized to receive either transcutaneous electric nerve stimulation (TENS, an opioid agonist treatment) or naltrexone (an opioid antagonist treatment). Participants whose self-injury is primarily socially motivated will be evaluated with TENS and will receive behavioral interventions through a technical assistance service delivery model. Follow-up evaluations will occur at Months 3 and 6.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Conditions

Self-Injurious Behavior

Intervention

Naltrexone hydrochloride, Transcutaneous sensory nerve stimulation

Location

Frank Porter Graham Child Development Center, University of North Carolina at Chapel Hill
Chapel Hill
North Carolina
United States
27599

Status

Active, not recruiting

Source

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:55:01-0400

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