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Efficacy of a Personalized, Response-based Transdiagnostic Intervention for Emotional Disorders Delivered Via the Internet: A Protocol for an Adaptive Randomized Controlled Trial

Efficacy of a Personalized, Response-based Transdiagnostic Intervention for Emotional Disorders Delivered Via the Internet: A Protocol for an Adaptive Randomized Controlled Trial

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07051148
Enrollment
366
Registered
2025-07-03
Start date
2027-05-01
Completion date
2030-07-01
Last updated
2026-05-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anxiety, Depression, Unipolar, Emotional Disorders

Keywords

transdiagnostic, internet based therapy, anxiety, depression, Emotional Disorders, adaptive intervention, blended treatment, digital interventions, personalization, personalized treatment, adaptive trial

Brief summary

This adaptive randomized controlled trial evaluates the efficacy of a transdiagnostic, internet-delivered psychological intervention for emotional disorders, tailored to patient´s early clinical response. 366 adults with clinically significant symptoms of depression and/or anxiety will begin a 12 module self-applied program. Based on sympton reduction after the first three modules, participants will be classified as early or late responders and randomized into different experimental arms. The main hypothesis is that a hybrid format (self-applied modules plus synchronous sessions with a therapist) will yield better outcomes for late responders. Outcomes include symptom reduction, emotional regulation and internet based therapheutic alliance.

Detailed description

To assess its effectiveness, two formats will be compared: the original, consisting of 12 self-administered modules, and a hybrid format, which includes two synchronous videoconference sessions with a trained therapist. Early responders will either continue with the original intervention or discontinue treatment; while late responders will receive the hybrid format or continue with the original intervention. The primary expected result is that the hybrid format will improve treatment outcomes for late responders compared to the self-applied format. The findings are expected to inform clinical practice by highlighting the importance of assessing symptomatic response throughout treatment, especially in its early phases.

Interventions

BEHAVIORALUJI Online Transdiagnostic Protocol

Is a manualized treatment for emotional disorders delivered through an interactive multimedia platform. The self applied format consists of 12 self applied modules (psychoeducation, emotional processing, cognitive flexibility training, exposure, coping strategies, maladaptive behaviors, avoidance, etc)

BEHAVIORALUJI On Line Transdiagnostic Hibrid Protocol

Hybrid format: 12 self applied modules with two synchronous videoconference sessions with a trained therapist

Sponsors

Universitat Jaume I
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Intervention model description

Multivarate experimental adaptive design (2 factors, 4 groups). Randomization will occur after the initial intervention phase (first 3 modules), based on symptom reduction using a Reliable Change Index (RCI). Participants will be classified as early or late responders. Within each group, simple randomization (1:1) will be implemented using a computer-generated sequence (in R). Assignment will be managed by and external researcher blind to clinical staff, using preloaded, password-protected lists. No stratification by sex, age or sociocultural status will be applied.

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Spanish speakers * OASIS score +/= 8 * ODSIS score +/= 7 * Access to Internet * Email

Exclusion criteria

* Severe mental disorder: schizophrenia/bipolar disorder * Active substance abuse * High suicide risk * Ongoing psychological/pharmacological treatment * Interfering physical illness

Design outcomes

Primary

MeasureTime frameDescription
Clinical Outcomes in Routine Evaluation (CORE-34, Evans et al., 2002)Day 1 (BL) Week 3, 6, 9, 12 Week 25 Year 1Is a self report questionnaire designed to assess psychological distress and global functioning across four domains: subjective well being, problems/symptoms, functioning and risk. Items are rated on a 5 point Likert scale. The instrument has demostrated good psychometrics properties. Higher scores indicate greater psychological distress.
Clinical Outcomes in Routine Evaluation 10 (CORE 10, Barkham et al., 2013)Day 1 (BL) Week 1, 2, 4, 5, 7, 8, 10, 11Is a Self-report 10-items questionnaire with 5 Likert response options. Assess general distress. Validated for Spanish speaking population with adequate internal consistency, convergent validity and sensitivity to change.

Secondary

MeasureTime frameDescription
Difficulties in Emotion Regulation Scale (DERS, Gratz & Roemer, 2004)Day 1 (BL) Week 3, 6, 9, 12 Week 25 Year 1Self- report 28-items questionnaire with 5 Likert response options. The scale assesses emotion regulation process and several difficulties associated. Adapted and validated in Spain with sound psychometric properties reported -internal consistency, test-retest reliability, convergent and incremental validity.
Inventory of Interpersonal Problems (IIP32, Horowitz, 2000)Day 1 (BL) Week 3, 6, 9, 12 Week 25 Year 1Is is a self-report questionnaire designed to assess interpersonal difficulties experienced over the past month. It covers eight dimensions of interpersonal functioning (e.g., being too controlling, socially inhibited, or self-sacrificing). Each item is rated on a 5-point Likert scale. The IIP-32 is a widely validated and efficient tool for identifying interpersonal patterns relevant to psychological distress and treatment planning.
Overall Anxiety Severity and Impairment Scale (OASIS; Norman et al., 2006)Day 1 (BL) Week 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Week 25 Year 1Self-report 5-item questionnaire that assesses frequency and severity of anxiety symptoms during the previous week. With 5 Likert response options (from 0 to 4). Adapted in Spain with good internal consistency (α = .86) and test-retest reliability (k= .84)
Overall Depression Severity and Impairment Scale (ODSIS; Bentley et al., 2014)Day 1 (BL) Week 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Week 25 Year 1Self-report 5-item questionnaire with 5 Likert response options (from 0 to 4). Assesses frequency and severity of depression symptoms during the previous week. Adapted in Spain with excellent psychometrics properties, internal consistency (α = .93) and convergent and discriminant validity
Working Alliance Inventory for Internet Interventions (WAI-I; Gómez Penedo et al., 2020).Week 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1212-items self-report questionnaire with 5 Likert response options. Assesses working alliance in internet-based interventions. Validated in German sample of adults with depressive symptoms receiving guided online intervention
Emotional Processing Self Report (EP-SR; Fisher et al., 2025)Week 3, 6, 9, 12 Week 25 Year 1Self-report 7-items questionnaire with 5 Likert response options. Assesses emotional processing during therapeutic sessions in three independent dimensions: emotional expression, regulation and understanding emotional meaning. The instrument demonstrates adequate psychometrics properties, with internal consistency, convergent, incremental and predictive validity in clinical sample. It has not yet been validated in Spanish speaking population.
Unified Protocol Skill Use Scale (UPSUS; Southward, & Sauer-Zavala, 2022)Week 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12Self-report 7-items questionnaire with 7 Likert response options. Assesses the use of emotional regulation skills from Barlow's Unified Protocol (UP). Adapted for Spanish speaking population
Brief Positive and Negative Affect Schedule (Brief PANAS; Watson et al., 1988Day 1 (BL) Week 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12Self-report 10-items questionnaire with 5 Likert response options (1 to 5). Assesses positive and negative affectivity (trait/state) during the past few weeks. Adapted for Spanish speaking population
Quality of Life Index Spanish (QLI-Sp; Mezzich et al., 2000)Day 1 (BL) Week 3, 6, 9, 12 Week 25 Year 1Self-report questionnaire containing 10 ítems with 10 Likert response options. Assess physical and emotional wellbeing, social support, interpersonal functioning, personal satisfaction and overall assessment of quality of life. Validated in Spanish speaking population with adequate psychometric properties in clinical sample (α = .87).
Generalized Self-Efficacy Scale (GSES; Jerusalem & Schwarzer, 1992).Day 1 (BL) Week 3, 6, 9, 12 Week 25 Year 1Self-report 10-items questionnaire with 4-point Likert scale. Assesses general sense of perceived self-efficacy. Validated in Spanish speaking population with sound psychometric properties

Contacts

CONTACTFernanda Longo Elia, Psychologist
FERLONGO1@GMAIL.COM+541159643668

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 28, 2026