NCT07337733

Brief Summary

This study evaluated the effectiveness of a brief behavioral-contextual intervention delivered through 11 weekly individual sessions (45 minutes each) to improve emotion regulation, distress tolerance, and psychological flexibility among adults undergoing residential rehabilitation for problematic substance use in a Mexican therapeutic community. The intervention combined functional analysis, Dialectical Behavior Therapy strategies adapted for substance use disorders, and Acceptance and Commitment Therapy techniques. Participants received structured materials, including a session manual, mindfulness audio recordings, worksheets, and adapted behavioral monitoring tools. A quasi-experimental pretest-posttest design with matched allocation was used. The Treatment Group (n = 19) received the structured intervention, while the Comparison Group (n = 17) received usual residential care based on a 12-step model. Primary assessments were administered at baseline and seven weeks after baseline. Primary outcome measures included changes in total scores on the Difficulties in Emotion Regulation Scale (DERS) and the Distress Tolerance Scale (DTS). Secondary outcomes included psychological flexibility (AAQ-II), emotion regulation strategies (ERQ reappraisal and suppression subscales), and behavioral indicators such as craving logs and engagement in value-consistent activities. Procedures to ensure implementation fidelity included a standardized intervention manual, periodic clinical supervision, and consistent documentation using structured forms. Due to practical constraints and a moderate sample size, the statistical plan relied on robust analytical strategies, including nonparametric tests, permutation-based ANCOVA, and bootstrap estimation to evaluate effect sizes and sensitivity. All participants provided written informed consent, and the protocol was approved by an institutional ethics committee. Individual-level data will not be publicly shared due to confidentiality requirements; methodological materials and analytic scripts may be made available upon request and under confidentiality agreement.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
36

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2024

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 18, 2024

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 9, 2025

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 26, 2025

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

December 7, 2025

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 13, 2026

Completed
Last Updated

January 13, 2026

Status Verified

January 1, 2026

Enrollment Period

1.3 years

First QC Date

December 7, 2025

Last Update Submit

January 2, 2026

Conditions

Keywords

Emotion RegulationDistress ToleranceSubstance Use DisorderBehavioral InterventionPsychological Flexibility

Outcome Measures

Primary Outcomes (2)

  • Difficulties in Emotion Regulation Scale (DERS-24 Total + Subscales)

    The Difficulties in Emotion Regulation Scale - 24 item version (DERS-24), validated in Mexican populations, is a self-report measure assessing emotion regulation difficulties. The total score and five subscales are analyzed: Emotional Rejection, Emotional Dyscontrol, Emotional Interference, Emotional Inattention, and Emotional Confusion. Higher scores indicate greater difficulties in emotion regulation (worse outcome). Changes in total and subscale scores from baseline to post-intervention will be analyzed as continuous outcomes. No validated clinical cut-off scores exist; exploratory cohort analyses, when conducted, will use pre-specified sample-based thresholds (e.g., median or tertiles).

    Baseline to 7 weeks post-baseline

  • Distress Tolerance Scale (DTS) - Spanish Version

    Change in Distress Tolerance Scale (DTS) subscale scores - Tolerance, Appraisal, Absorption, Regulation. Change (Post - Pre) in DTS subscale scores. Subscale scoring (sum of items): Tolerance (3-15; higher = greater tolerance), Appraisal (6-30; higher = greater tolerance), Absorption (3-15; higher = greater tolerance), Regulation (3-15; higher = greater tolerance). Item 6 is reverse-scored.

    Baseline to 7 weeks post-baseline.

Secondary Outcomes (2)

  • Emotion Regulation Questionnaire (ERQ) - Cognitive Reappraisal and Expressive Suppression Subscales

    Baseline to 7 weeks.

  • Acceptance and Action Questionnaire-II (AAQ-II)

    Baseline to 7 weeks.

Study Arms (2)

Behavioral-Contextual Emotion Regulation Program (BCERP)

EXPERIMENTAL

Individual intervention comprising 11 weekly sessions (45 minutes each). The intervention combines functional ABC analysis, attentional focus training, crisis management skills (STOP protocol), distress tolerance training (DBT-SUD), mindfulness practices with behavioral anchoring, ACT techniques to enhance psychological flexibility, and consolidation exercises with relapse prevention.

Behavioral: Behavioral-Contextual Emotion Regulation Program (BCERP)

Standard Residential Treatment Based on the Twelve-Step Facilitation Model

NO INTERVENTION

Standard therapeutic community residential program based on the 12-step model, without the structured sessions of the experimental protocol. Pre- and post-assessments applied at the same time points as the Treatment Group (TG).

Interventions

The Behavioral-Contextual Emotion Regulation Program (BCERP) is a structured emotional regulation skills training intervention based on Applied Behavior Analysis principles and adapted to a therapeutic community setting for individuals undergoing substance use rehabilitation. Unlike interventions focused solely on psychoeducation, BCERP integrates intensive skills practice, gradual exposure to high-distress situations, and real-time feedback provided by trained therapists. The program includes modules on distress tolerance, behavioral restructuring, functional identification of emotions, and the strengthening of alternative, non-substance-related behaviors. BCERP is distinguished by its emphasis on continuous supervision, the use of contextual therapeutic language, and systematic progress monitoring through weekly behavioral indicators.

Also known as: Behavioral-Contextual Intervention for Emotional Regulation in Addictive Behaviors, BCERP for Substance Use Rehabilitation
Behavioral-Contextual Emotion Regulation Program (BCERP)

Eligibility Criteria

Age18 Years - 68 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥ 18 years.
  • Resident of the participating therapeutic community undergoing treatment for problematic substance use or alcohol.
  • Capacity to provide informed consent and complete self-report assessments.

You may not qualify if:

  • Active psychosis or unstable psychiatric comorbidity that precludes participation.
  • Severe cognitive impairment preventing participation.
  • Refusal to participate or unavailability to complete baseline and post assessments.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Comunidad Terapéutica Under The Tree

Ajijic, Jalisco, 45920, Mexico

Location

MeSH Terms

Conditions

Substance-Related DisordersAlcoholismEmotional Regulation

Condition Hierarchy (Ancestors)

Chemically-Induced DisordersMental DisordersAlcohol-Related DisordersSelf-ControlSocial BehaviorBehavior

Study Officials

  • Lauro Gutiérrez Castro

    Comunidad Terapéutica Under The Tree

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This study used a quasi-experimental, parallel-group design with matched allocation. Participants were assigned either to the Treatment Group, which received an 11-session behavioral-contextual intervention focused on emotion regulation and distress tolerance, or to the Comparison Group, which received usual residential care based on a 12-step model. Assessments were conducted at baseline and seven weeks later. The model emphasizes ecological validity within a therapeutic community setting, individual delivery of the intervention, and standardized procedures to ensure fidelity across sessions.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

December 7, 2025

First Posted

January 13, 2026

Study Start

June 18, 2024

Primary Completion

October 9, 2025

Study Completion

November 26, 2025

Last Updated

January 13, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will share

If data sharing is conducted, only de-identified Individual Participant Data (IPD) will be made available, including coded demographic variables, baseline assessments, intervention adherence indicators, and pre-post outcome measures. No information that could directly or indirectly identify participants will be shared. Data will be provided exclusively for research purposes upon reasonable request and subject to a data-use agreement ensuring confidentiality and appropriate use. Study documentation such as manuals and analytic code may also be shared when relevant.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
IPD will be available only upon reasonable request from qualified researchers after completion of the primary analysis and publication of the study results. Availability will not include informed consent forms, as these documents are confidential and protected. The availability period will begin once the principal investigator receives a formal request and will remain open as long as there is a valid and ethically approved research purpose. All data will be provided in anonymized form and in full compliance with data protection regulations.
Access Criteria
Access to IPD and supporting information will be restricted to qualified researchers affiliated with academic or clinical institutions capable of meeting ethical and regulatory standards. Access will be limited to anonymized data relevant to clearly defined scientific research purposes approved by an ethics committee. Formal requests must be submitted to the principal investigator, who will evaluate the scientific rationale and confidentiality safeguards. Upon approval, data will be shared through a secure transfer mechanism under a data-use agreement that prohibits any attempt at re-identification.

Locations