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Status unknownNCT00491478Updated Jun 26, 2007

Repetitive Behavior Disorders in People With Severe Mental Retardation

A Phase 3 interventional study of sertraline in Mental Retardation, Stereotyped Behavior and Self-Injurious Behavior, sponsored by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD). Status unknown at 2 sites in United States. Open to participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2007-06-26.

Sponsored by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) · Phase 3, Interventional, and Treatment

The sponsor has not verified this record recently (last verified May 2003), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 3
Study type
Interventional
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
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Study summary

Repetitive behavior disorders are prevalent among people with severe mental retardation. These disorders can interfere significantly with an individual's daily functions. This trial is part of a long-term project that has studied the biologic basis of and possible treatments for repetitive behavior disorders. The trial will evaluate the effectiveness of two medications, a selective serotonin reuptake inhibitor (SSRI) and an atypical antipsychotic, in treating repetitive behavior disorders in people with mental retardation.

Read the detailed description

Abnormal repetitive behaviors (odd or inappropriate movements, self-injury, and compulsions) are among the aberrant behaviors exhibited by individuals with mental retardation. However, little is known about their pathobiology and treatments are largely unconfirmed by controlled trials. For example, few controlled studies have examined the efficacy of pharmacological treatment of abnormal repetitive behavior in individuals with mental retardation.

This trial is part of a larger project designed to elucidate the neurobiological bases of repetitive behavior disorders and to develop rational, safe, and effective pharmacological treatments. Thus far, the project has established a pathophysiological basis for stereotyped behavior disorder, demonstrated the role of central dopamine deficiency in stereotyped behavior disorder, and provided evidence of the efficacy of both 5-HT uptake inhibitors and atypical antipsychotics in treating stereotyped behaviors.

There is currently little information to guide the clinician in deciding which drug class may be more effective for which abnormal repetitive behaviors and for which individuals. Moreover, little work has attempted to identify variables that may predict differential treatment response. This trial will assess the relative efficacy of an SSRI and an atypical antipsychotic across multiple categories of abnormal repetitive behaviors.

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Conditions studied

  • Mental Retardation
  • Stereotyped Behavior
  • Self-Injurious Behavior
  • Compulsive Behavior

Keywords

  • Repetitive behavior disorder
  • Stereotypy
  • Sertraline
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In context

Intellectual Disability

387 studies on the registry are indexed under Intellectual Disability; 105 are open to participants now.

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Lead sponsor

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) is the lead sponsor of 422 studies on the registry; 24 are open to participants now.

Of its 14 completed or terminated interventional studies of FDA-regulated products, 11 (79%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Mental retardation
  • Medically stable resident of either Western Carolina Center, Morganton, NC or Tacachale Community, Gainesville, FL
  • Free of sensory deficits
  • Ambulatory
  • High rate of stereotyped behavior that may co-occur with self-injurious or compulsive behaviors

Exclusion criteria

Exclusion Criteria

  • Poor general health
  • Cardiac, hepatic, or renal abnormalities
  • Seizure within 4 months prior to study entry (patients on seizure medication who have not had a seizure within 4 months prior to study entry may participate)
  • Tardive dyskinesia
  • Akathisia
  • Neuroleptic use within 6 months of study entry
  • History of sensitivity to ergot alkaloids
  • Hypertension
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Factorial assignment
Masking
Double

Interventions

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Study locations

2 of 2 sites recruiting
  • Department of Psychiatry
    Gainesville, Florida 32610-0256, United States
    Recruiting
  • Western Carolina Center
    Morganton, North Carolina 28655, United States
    Recruiting
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References and documents

Publications

  • Bodfish JW, Crawford TW, Powell SB, Parker DE, Golden RN, Lewis MH. Compulsions in adults with mental retardation: prevalence, phenomenology, and comorbidity with stereotypy and self-injury. Am J Ment Retard. 1995 Sep;100(2):183-92. PubMed 8527113 ↗
  • Lewis MH, Bodfish JW, Powell SB, Wiest K, Darling M, Golden RN. Plasma HVA in adults with mental retardation and stereotyped behavior: biochemical evidence for a dopamine deficiency model. Am J Ment Retard. 1996 Jan;100(4):413-8. No abstract available. PubMed 8718995 ↗
  • Bodfish JW, Symons FJ, Parker DE, Lewis MH. Varieties of repetitive behavior in autism: comparisons to mental retardation. J Autism Dev Disord. 2000 Jun;30(3):237-43. doi: 10.1023/a:1005596502855. PubMed 11055459 ↗
  • Bodfish JW, Parker DE, Lewis MH, Sprague RL, Newell KM. Stereotypy and motor control: differences in the postural stability dynamics of persons with stereotyped and dyskinetic movement disorders. Am J Ment Retard. 2001 Mar;106(2):123-34. doi: 10.1352/0895-8017(2001)1062.0.CO;2. PubMed 11321603 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 26, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00491478
First posted
Jun 26, 2007
Start date
Sep 1992
Last update
Jun 26, 2007

Study contacts

Mark Lewis, PhD
Contact
mlewis@psych.med.ufl.edu
352-392-3471
Mark Lewis, PhD
principal investigator · University of Florida
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in May 2003. You cannot join it, but the record below documents what was studied.

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