Group Version of the UP-A in a Spanish Public Mental Health Setting.

The study aims to adapt the Spanish version of the UP-A to a group format in a public mental health setting for adolescents with moderate emotional symptoms and evaluate its clinical utility and feasibility. This includes assessing anxiety, depression, transdiagnostic variables, engagement, and satisfaction from adolescents, parents, and clinicians, with follow-ups at 3, 6 and 12 months. The goal is to improve adolescent mental health and explore whether this approach could help alleviate the pressure on public healthcare services.

Anxiety and depression are among the most prevalent mental health disorders in adolescents, with growing concerns about their increasing incidence. Studies indicate that emotional disorders often co-occur due to shared transdiagnostic factors, such as poor emotion regulation, high negative affect, and cognitive avoidance. Given these shared mechanisms, transdiagnostic treatments like the Unified Protocol for the Transdiagnostic Treatment of Emotional Disorders in Adolescents (UP-A) have been developed to improve adaptive emotion regulation and reduce avoidance behaviors. While the UP-A has been primarily evaluated as an individual therapy, its adaptation to a group format could enhance accessibility and efficiency, particularly in public mental health settings.

This study aims to adapt the Spanish version of the UP-A to a group format for adolescents with moderate emotional symptoms in a public mental health setting and assess its clinical utility and feasibility. The program is administered at a public mental health center in Madrid, with 31 adolescents (ages 11-17) diagnosed with emotional disorders. The intervention consists of 16 weekly sessions for adolescents, alongside three parental sessions. The program incorporates modifications such as individual sessions for defining personal treatment goals, structured peer support, and behavioral reinforcement strategies.

Eligibility Criteria:
Inclusion Criteria:

* Presenting a primary diagnosis of an emotional disorder with mild or moderate severity, including the following disorders based on DSM-5 categories: Depressive Disorders (Major Depressive Disorder and Persistent Depressive Disorder), Anxiety Disorders (Specific Phobia, Panic Disorder, Agoraphobia, Social Anxiety Disorder, Generalized Anxiety Disorder), Obsessive-Compulsive and Related Disorders (including Body Dysmorphic Disorder, Hoarding Disorder, Trichotillomania and Excoriation (Skin-Picking) Disorder), Trauma and Stressor-Related Disorders (Reactive Attachment Disorder, Post-Traumatic Stress Disorder, Acute Stress Disorder and Adjustment Disorders), Dissociative Disorders (Dissociative Identity Disorder, Depersonalization/Derealization Disorder) and Somatic Symptom and Related Disorders (Somatic Symptom Disorder and Illness Anxiety Disorder). Specified and unspecified disorders from the above categories were also included.
* Being 11-18 years of age
* Being proficient in Spanish
* The adolescent being able to attend the treatment sessions
* At least one of the adolescent's parents or legal guardians being able to attend the parents' treatment sessions
* If the participant was taking psychiatric medication, the dose was required to remain stable for at least 1 month before the start of treatment and throughout it

Exclusion Criteria:

* Presenting self-harm or suicidal ideation in a moderate or severe degree
* Presenting certain of the following clinical conditions (either as a main or comorbid diagnosis): Neurodevelopmental Disorders (Intellectual Disability or Autism Spectrum Disorder); Disruptive, Impulse-Control and Conduct Disorders; Eating Disorders; Psychotic Spectrum Disorders or psychotic-type symptoms,; Substance Abuse Disorders (excluding cannabis, coffee and/or nicotine); high severity Emotional Disorders; and Bipolar Disorders
* The characteristics or severity of the symptoms presented by the adolescent requiring an individual intervention or one adapted to the specific clinical condition
* Be receiving public or private psychological treatment during the UP-A program
* Suffering from a serious medical illness that made the adolescent's participation in the treatment program unsustainable
* The participant, or if under 16 years of age, his or her parents, having refused to sign the informed consent