Disentangling Components of Flexibility via the Hexaflex Model: Development and Validation of the Multidimensional Psychological Flexibility Inventory (MPFI).
Jaci L Rolffs, Ronald D Rogge, Kelly G Wilson
https://pubmed.ncbi.nlm.nih.gov/27152011Actively Recruiting
Phase Not Applicable
Age: 12Years - 18Years
All Genders
ID07456631
ACTsocially: Acceptance and Commitment Therapy for Adolescents with Oppositional Defiant Disorder and Social Anxiety Disorder to Change Internalizing and Externalizing Symptoms
Led by University of Coimbra · Updated on 2026-03-10
54
Participants Needed
1
Research Sites
N/A
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
Researchers are studying adolescents with Oppositional Defiant Disorder (ODD) and Social Anxiety Disorder (SAD), two conditions marked by problematic social functioning but with different outward symptoms. This research aims to evaluate the effects of Acceptance and Commitment Therapy (ACT), a behavioral approach that targets underlying psychological processes common to both disorders, to see if it can improve social fears, disruptive behavior, and mental health in these adolescents. The project includes three clinical trials to test ACT's impact and similarities in treating these disorders during adolescence. The intervention, called ACTsocially, is a structured face-to-face program consisting of 11 weekly sessions of about 50 minutes each. The sessions include mindfulness exercises, reviews of prior sessions, psychoeducation, metaphors, experiential activities, and commitments for the following week. Participants include adolescents diagnosed with ODD or SAD, with some receiving ACTsocially and others serving as control groups. Assessments are conducted before and after the intervention, as well as at 3- and 6-month follow-ups. Participants will be involved in assessments measuring changes in social fears, disruptive and aggressive behaviors, psychological flexibility, and overall mental health at baseline, after 11 weeks, and during follow-up visits. The study uses questionnaires and interviews to track these outcomes and evaluates whether improvements last over time. The research team also monitors safety and adherence, ensuring that adolescents and their guardians provide informed consent and understand participation is voluntary. The study is sponsored by the University of Coimbra and runs until September 2027.
CONDITIONS
Brief 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
You may qualify if you...
- Main diagnosis of Oppositional Defiant Disorder (ODD) or Social Anxiety Disorder (SAD)
- Aged between 12 and 18 years
- Consent provided by adolescent and parent/legal guardian
- Meeting diagnostic criteria for either ODD or SAD as applicable
You will not qualify if you...
- Impaired cognitive development based on school records
- Presence of psychotic symptoms
- Diagnosis of autism spectrum disorder
- Currently receiving psychological intervention for a psychiatric condition
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
1
2
3
Your Study Journey
Screening
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Outpatient Treatment
Duration - 11 weeks
Participants receive the ACTsocially intervention consisting of 11 weekly 50-minute face-to-face sessions focused on Acceptance and Commitment Therapy to improve psychological flexibility and social functioning.
Weekly visits for 11 weeks (in-person)
Follow-up
Duration - 6 months
Participants are assessed to examine the stability of treatment effects at 3 and 6 months after the intervention ends.
2 visits (in-person) at 3 and 6 months post-intervention
Trial Site Locations
Total: 1 location
1
FPCEUC
Coimbra, Portugal
Actively Recruiting
Loading map...
Research Team
F
Francisca Alves M.Sc.
How is the study designed?
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
3
Similar Trials
Frequently Asked Questions
Have more questions? Get in touch with our team for quick support
Not the Right Trial for You?
Explore thousands of other clinical trials that might be a better match.
Sign up to get personalized trial recommendations delivered to your inbox.
Already have an account? Log in here
Published Research Related To This Trial
Measures of aggression and victimization in portuguese adolescents: Cross-cultural validation of the Revised Peer Experience Questionnaire.
Andreia N Queirós, Paula Vagos
https://pubmed.ncbi.nlm.nih.gov/27427943The Disruptive Behavior Disorders Rating Scale: Updated Factor Structure, Measurement Invariance, and National Caregiver Norms.
Whitney D Fosco, Dara E Babinski, Daniel A Waschbusch
https://pubmed.ncbi.nlm.nih.gov/36881692The Core Social Fears Scale for Adolescents: Psychometric appraisal based on community and clinical samples.
Paula Vagos, Diana Vieira Figueiredo, Marina Cunha
https://pubmed.ncbi.nlm.nih.gov/40759831Effectiveness of Acceptance and Commitment Therapy on Interpersonal Problems and Psychological Flexibility in Female High School Students With Social Anxiety Disorder.
Sayedeh Monireh Azadeh, Hamid Kazemi-Zahrani, Mohammad Ali Besharat
https://pubmed.ncbi.nlm.nih.gov/26493425The role of the acceptance and commitment therapy in the treatment of social anxiety: An updated scoping review.
Elisabetta Caletti, Chiara Massimo, Sara Magliocca...
https://pubmed.ncbi.nlm.nih.gov/35537544Acceptance and commitment therapy: a meta-analytic review.
Mark B Powers, Maarten B Zum Vorde Sive Vording, Paul M G Emmelkamp
https://pubmed.ncbi.nlm.nih.gov/19142046A meta-analysis of the efficacy of acceptance and commitment therapy for clinically relevant mental and physical health problems.
Jacqueline G L A-Tjak, Michelle L Davis, Nexhmedin Morina...
https://pubmed.ncbi.nlm.nih.gov/25547522Considering Meta-Analysis, Meaning, and Metaphor: A Systematic Review and Critical Examination of "Third Wave" Cognitive and Behavioral Therapies.
Sona Dimidjian, Joanna J Arch, Rebecca L Schneider...
https://pubmed.ncbi.nlm.nih.gov/27993339Acceptance and commitment therapy: model, processes and outcomes.
Steven C Hayes, Jason B Luoma, Frank W Bond...
https://pubmed.ncbi.nlm.nih.gov/16300724