Actively Recruiting

Phase Not Applicable
Age: 12Years - 18Years
All Genders
NCT07456631

ACTsocially: The (Dis)Similarities of ACT for Changing Internalizing and Externalizing Symptomatology in Adolescence

Led by University of Coimbra · Updated on 2026-03-10

54

Participants Needed

1

Research Sites

212 weeks

Total Duration

On this page

Sponsors

U

University of Coimbra

Lead Sponsor

F

Foundation for Science and Technology, Portugal

Collaborating Sponsor

AI-Summary

What this Trial Is About

Social functioning, fundamental to adolescent's development and mental health, may be impaired by polarizing problematic social functioning, namely externalizing symptoms manifested by Oppositional Defiant Disorder and internalizing symptoms portrayed by Social Anxiety Disorder. Despite their high prevalence and similar associated impairments, interventions targeting these disorders are differently conceived. Alternatively, Acceptance and Commitment Therapy (ACT) proposes that those apparently dissimilar social difficulties are rooted in similar processes. Though research has shown ACTs' efficacy in changing adults' internalizing and externalizing symptoms, studies on the potential of ACT in changing those problematics in adolescence are still scarce. This project proposes to conduct three clinical trials to test the efficacy and (dis)similarities of an transdiagnostic ACT intervention for changing internalizing and externalizing symptomatology in adolescents. It will amplify the transdiagnostic and evidence-based application of ACT to adolescents presenting polarizing disorders in the social functioning spectrum.

CONDITIONS

Official Title

ACTsocially: The (Dis)Similarities of ACT for Changing Internalizing and Externalizing Symptomatology in Adolescence

Who Can Participate

Age: 12Years - 18Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Main diagnosis of Oppositional Defiant Disorder (ODD)
  • Meeting diagnostic criteria for Social Anxiety Disorder (SAD)
Not Eligible

You will not qualify if you...

  • Impaired cognitive development based on school records
  • Presence of psychotic symptoms according to the diagnostic interview
  • Diagnosis of autism spectrum disorder according to the diagnostic interview
  • Currently undergoing another psychological intervention for a psychiatric condition

AI-Screening

AI-Powered Screening

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Trial Site Locations

Total: 1 location

1

FPCEUC

Coimbra, Portugal

Actively Recruiting

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Research Team

F

Francisca Alves M.Sc.

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

SINGLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

3

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