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Completed

NCT Number: NCT04654260

Behavior Therapy for Irritability in Autism

This is a clinical trial of a novel intervention, Behavioral Therapy for Irritability and Aggression (BTIA), for adolescents on the autism spectrum. The main goals of BTIA are to help adolescents develop emotion regulation skills to handle frustration and to strengthen skills for navigating the challenging and diverse experiences associated with the transition to adulthood. The study will test whether BTIA can be helpful to adolescents on the autism spectrum and to their families.

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Key information

About this study

This is a randomized controlled study of BTIA versus a supportive therapy control condition in 126 adolescents (ages 12 to 18 years) with a diagnosis of autism spectrum disorder and significant levels of disruptive behaviors such as aggression, anger outbursts, and oppositional behavior. BTIA consists of 15 ninety-minute weekly sessions that will be conducted with the teens and their parents by therapists using a structured, detailed manual. The effects of BTIA on the reduction of behavioral problems will be rated by an experienced clinician who does not know which treatment each participant is receiving (a "blinded" evaluator). Study participants will receive a thorough diagnostic assessment of autism spectrum disorder and other forms of psychopathology that may co-occur with ASD. In addition to testing the effects of BTIA on disruptive behavior, the changes in adaptive functioning, or children's ability to function competently in their everyday environment, will be examined before and after treatment.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Boys and girls, ages 12 to 18 years inclusive
  • Diagnosis of autism spectrum disorder
  • Presence of disruptive behaviors such as irritability and anger outbursts
  • No planned changes in the intensity of current treatment(s)
  • Medication free or on stable medication
  • Sufficient language for participation in verbal therapy
  • Lives within driving distance from New Haven, CT

Exclusion criteria

  • Presence of a medical condition that would interfere with participation in the study
  • Presence of a current psychiatric disorder that requires immediate clinical attention

Treatment and study plan

Behavioral Therapy for Irritability in Autism

Behavioral

The child-focused components of BTIA are organized in modules dedicated to emotion regulation, problem solving and practice of planned steps to prevent or resolve conflicts. Each session contains a set of six to seven goals, and each goal contains a menu of techniques and activities that can be used to attain this goal. In order to administer the treatment in a flexible yet reliable manner, the therapist works collaboratively with the child and his or her parents to select activities that are perceived as relevant for attaining the session's goal. The parent-focused components of BTIA include include education about the effects of antecedents and consequences on disruptive behavior, developing strategies for reducing or altering antecedent events that may lead to disruptive reactions and helping parents to use reinforcement of competent and calm responses in potentially frustrating situations.

Psychoeducation and supportive therapy (PST)

Behavioral

Each PST session will start with a review of events of the past week and include queries of topics such as school, interests, hobbies, and family with an overarching goal of enhancing subjective well-being. A major objective is to enables the participant to discuss his or her concerns with a therapist toward a goal of enhancing overall psychological wellbeing. Education about autism diagnosis and services is also provided to families as part of PST.

Primary outcomes

  1. Modified Overt Aggression Scale (MOAS)

    Time frame: baseline (week 0)

    Modified Overt Aggression Scale is a 16-item scale that reflects the frequency and severity of incidents of aggressive behavior. Scores can range from 0 (minimum) to 300 (maximum) with higher scores reflecting worse outcome.

  2. Modified Overt Aggression Scale (MOAS)

    Time frame: midpoint (week 8)

    Modified Overt Aggression Scale is a 16-item scale that reflects the frequency and severity of incidents of aggressive behavior. Scores can range from 0 (minimum) to 300 (maximum) with higher scores reflecting worse outcome.

  3. Modified Overt Aggression Scale (MOAS)

    Time frame: endpoint (week 16)

    Modified Overt Aggression Scale is a 16-item scale that reflects the frequency and severity of incidents of aggressive behavior. Scores can range from 0 (minimum) to 300 (maximum) with higher scores reflecting worse outcome.

  4. Modified Overt Aggression Scale (MOAS)

    Time frame: six-month follow up (week 42)

    Modified Overt Aggression Scale is a 16-item scale that reflects the frequency and severity of incidents of aggressive behavior. Scores can range from 0 (minimum) to 300 (maximum) with higher scores reflecting worse outcome.

  5. The Clinical Global Impression - Improvement Score (CGI-I)

    Time frame: baseline (week 0)

    The Clinical Global Impression - Improvement Score assigned by an independent evaluator (IE) who will be blind to treatment assignment is the categorical primary outcome measure of aggressive behavior. The CGI-I reflects the IE's assessment of overall change from baseline rated on a scale from 1 to 7 where 1 is very much improved, 2 is much improved, 3 is minimally improved, 4 is no change, 5 is minimally worse, 6 is much worth, and 7 is very much worse. Higher scores reflect worse outcome. By convention, ratings of very much improved (1) or much improved (2) define positive response; all other scores are classified as a negative response.

  6. The Clinical Global Impression - Improvement Score (CGI-I)

    Time frame: midpoint (week 8)

    The Clinical Global Impression - Improvement Score assigned by an independent evaluator (IE) who will be blind to treatment assignment is the categorical primary outcome measure of aggressive behavior. The CGI-I reflects the IE's assessment of overall change from baseline rated on a scale from 1 to 7 where 1 is very much improved, 2 is much improved, 3 is minimally improved, 4 is no change, 5 is minimally worse, 6 is much worth, and 7 is very much worse. Higher scores reflect worse outcome. By convention, ratings of very much improved (1) or much improved (2) define positive response; all other scores are classified as a negative response.

  7. The Clinical Global Impression - Improvement Score (CGI-I)

    Time frame: endpoint (week 16)

    The Clinical Global Impression - Improvement Score assigned by an independent evaluator (IE) who will be blind to treatment assignment is the categorical primary outcome measure of aggressive behavior. The CGI-I reflects the IE's assessment of overall change from baseline rated on a scale from 1 to 7 where 1 is very much improved, 2 is much improved, 3 is minimally improved, 4 is no change, 5 is minimally worse, 6 is much worth, and 7 is very much worse. Higher scores reflect worse outcome. By convention, ratings of very much improved (1) or much improved (2) define positive response; all other scores are classified as a negative response.

  8. The Clinical Global Impression - Improvement Score (CGI-I)

    Time frame: six-month follow up (week 42)

    The Clinical Global Impression - Improvement Score assigned by an independent evaluator (IE) who will be blind to treatment assignment is the categorical primary outcome measure of aggressive behavior. The CGI-I reflects the IE's assessment of overall change from baseline rated on a scale from 1 to 7 where 1 is very much improved, 2 is much improved, 3 is minimally improved, 4 is no change, 5 is minimally worse, 6 is much worth, and 7 is very much worse. Higher scores reflect worse outcome. By convention, ratings of very much improved (1) or much improved (2) define positive response; all other scores are classified as a negative response.

  9. Irritability subscale - Aberrant Behavioral Checklist

    Time frame: baseline (week 0)

    The 15-item Irritability subscale includes questions about aggression, tantrums, agitation, and unstable mood that are rated on a 4-point scale with the following anchor points: 0 = not at all a problem; 1 = the behavior is a problem but slight in degree; 2 = the problem is moderately serious; 3 = the problem is severe in degree. The total Irritability subscale score ranges from 0 to 45, with higher scores indicating greater severity.

  10. Irritability subscale - Aberrant Behavioral Checklist

    Time frame: midpoint (week 8)

    The 15-item Irritability subscale includes questions about aggression, tantrums, agitation, and unstable mood that are rated on a 4-point scale with the following anchor points: 0 = not at all a problem; 1 = the behavior is a problem but slight in degree; 2 = the problem is moderately serious; 3 = the problem is severe in degree. The total Irritability subscale score ranges from 0 to 45, with higher scores indicating greater severity.

  11. Irritability subscale - Aberrant Behavioral Checklist

    Time frame: endpoint (week 16)

    The 15-item Irritability subscale includes questions about aggression, tantrums, agitation, and unstable mood that are rated on a 4-point scale with the following anchor points: 0 = not at all a problem; 1 = the behavior is a problem but slight in degree; 2 = the problem is moderately serious; 3 = the problem is severe in degree. The total Irritability subscale score ranges from 0 to 45, with higher scores indicating greater severity.

  12. Irritability subscale - Aberrant Behavioral Checklist

    Time frame: six-month follow up (week 42)

    The 15-item Irritability subscale includes questions about aggression, tantrums, agitation, and unstable mood that are rated on a 4-point scale with the following anchor points: 0 = not at all a problem; 1 = the behavior is a problem but slight in degree; 2 = the problem is moderately serious; 3 = the problem is severe in degree. The total Irritability subscale score ranges from 0 to 45, with higher scores indicating greater severity.

Secondary outcomes

  1. Vineland Adaptive Behavior Scales - Communication Domain Score

    Time frame: baseline (week 0)

    Vineland Adaptive Behavior Scales, Third Edition (Vineland-3) is a measure of competence in communication, daily living skills, and socialization which is administered in a semi-structured parent interview format. Items assess the individual's behavior in these domains and are rated according to the frequency with which behaviors are performed without help or prompting (i.e., "Never," "Sometimes" or "Usually"). The raw scores are converted to standard scores (mean = 100, SD = 15; range 40 to 160), and higher scores indicate better adaptive functioning.

  2. Vineland Adaptive Behavior Scales - Communication Domain Score

    Time frame: endpoint (week 16)

    Vineland Adaptive Behavior Scales, Third Edition (Vineland-3) is a measure of competence in communication, daily living skills, and socialization which is administered in a semi-structured parent interview format. Items assess the individual's behavior in these domains and are rated according to the frequency with which behaviors are performed without help or prompting (i.e., "Never," "Sometimes" or "Usually"). The raw scores are converted to standard scores (mean = 100, SD = 15; range 40 to 160), and higher scores indicate better adaptive functioning.

  3. Vineland Adaptive Behavior Scales - Communication Domain Score

    Time frame: six-month follow up (week 42)

    Vineland Adaptive Behavior Scales, Third Edition (Vineland-3) is a measure of competence in communication, daily living skills, and socialization which is administered in a semi-structured parent interview format. Items assess the individual's behavior in these domains and are rated according to the frequency with which behaviors are performed without help or prompting (i.e., "Never," "Sometimes" or "Usually"). The raw scores are converted to standard scores (mean = 100, SD = 15; range 40 to 160), and higher scores indicate better adaptive functioning.

Other outcomes

  1. Affective Reactivity Index (ARI)

    Time frame: baseline (week 0)

    Affective Reactivity Index (ARI) is an 7-item measure of anger and irritability in children and adolescents which is reliable in ASD. Items are scored of a 0, 1 or 3 scale and first 6 items are summed for a total score, with a possible range from 0 to 12, higher scores reflecting greater levels of irritability

  2. Affective Reactivity Index (ARI)

    Time frame: midpoint (week 8)

    Affective Reactivity Index (ARI) is an 7-item measure of anger and irritability in children and adolescents which is reliable in ASD. Items are scored of a 0, 1 or 3 scale and first 6 items are summed for a total score, with a possible range from 0 to 12, higher scores reflecting greater levels of irritability

  3. Affective Reactivity Index (ARI)

    Time frame: endpoint (week 16)

    Affective Reactivity Index (ARI) is an 7-item measure of anger and irritability in children and adolescents which is reliable in ASD. Items are scored of a 0, 1 or 3 scale and first 6 items are summed for a total score, with a possible range from 0 to 12, higher scores reflecting greater levels of irritability

  4. Affective Reactivity Index (ARI)

    Time frame: six-month follow up (week 42)

    Affective Reactivity Index (ARI) is an 7-item measure of anger and irritability in children and adolescents which is reliable in ASD. Items are scored of a 0, 1 or 3 scale and first 6 items are summed for a total score, with a possible range from 0 to 12, higher scores reflecting greater levels of irritability

  5. Social Responsiveness Scale-2 (SRS-2)

    Time frame: baseline (week 0)

    Social Responsiveness Scale-2 (SRS-2) is a 65-item, parent-report scale that measures social disability. Items assess the individual's social awareness, social cognition, social communication, social motivation, and restricted interest and repetitive behaviors on a scale from 0 to 3. The raw scores are converted to T-scores (mean = 50, SD = 10; range 30 to 90), and higher scores indicate greater impairment.

  6. Social Responsiveness Scale-2 (SRS-2)

    Time frame: midpoint (week 8)

    Social Responsiveness Scale-2 (SRS-2) is a 65-item, parent-report scale that measures social disability. Items assess the individual's social awareness, social cognition, social communication, social motivation, and restricted interest and repetitive behaviors on a scale from 0 to 3. The raw scores are converted to T-scores (mean = 50, SD = 10; range 30 to 90), and higher scores indicate greater impairment.

  7. Social Responsiveness Scale-2 (SRS-2)

    Time frame: endpoint (week 16)

    Social Responsiveness Scale-2 (SRS-2) is a 65-item, parent-report scale that measures social disability. Items assess the individual's social awareness, social cognition, social communication, social motivation, and restricted interest and repetitive behaviors on a scale from 0 to 3. The raw scores are converted to T-scores (mean = 50, SD = 10; range 30 to 90), and higher scores indicate greater impairment.

  8. Social Responsiveness Scale-2 (SRS-2)

    Time frame: six-month follow up (week 42)

    Social Responsiveness Scale-2 (SRS-2) is a 65-item, parent-report scale that measures social disability. Items assess the individual's social awareness, social cognition, social communication, social motivation, and restricted interest and repetitive behaviors on a scale from 0 to 3. The raw scores are converted to T-scores (mean = 50, SD = 10; range 30 to 90), and higher scores indicate greater impairment.

Sponsors and collaborators

Lead sponsor

Yale University

Other

Collaborators

  • Congressionally Directed Medical Research Programs

Registry information

Official study title

Behavior Therapy for Irritability and Aggression in Adolescents With Autism

Acronym: BTIA

Important dates

Study start
2020
Primary completion
2026
Study completion
2026
First posted
Dec 4, 2020
Registry last updated
Jun 12, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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