Development of a Digital Acceptance and Commitment Therapy Intervention for Suicide Prevention in Adults Through Co-design

NCT07733596 | Not Yet Recruiting

• 1 other identifier: HSEARS20260122008-1
• Study Type: interventional
• Target: 80
• Locations: 1 country
• Sites: 1

Brief Summary

Suicide is a major public health concern and there is a need for accessible and scalable interventions to support individuals experiencing suicidal thoughts. The aim of this study is to develop a digital Acceptance and Commitment Therapy (ACT) intervention for suicide prevention in Chinese adults through co-design. The study will involve literature review, interviews, and co-design activities to identify user needs, preferences, and contextual factors, and to develop the intervention. Following intervention development, a pilot study will be conducted to evaluate the feasibility, usability, acceptability, and user engagement of the intervention. Findings from this study will inform further refinement of the intervention and future evaluation studies.

Conditions

Suicide; Co-design; Suicide Prevention

Outcome Measures

Primary Outcomes (4)

• Intervention completion rate

  The intervention completion rate will be assessed as the percentage of participants who complete the digital intervention, based on intervention usage records.

  End of the intervention (approximately 2 weeks)

• Retention rate

  The participant retention rate will be assessed as the percentage of participants who complete the post-intervention assessment and the follow-up assessment.

  End of the 1-month follow-up

• Acceptability outcome

  Acceptability of the intervention will be assessed using participant-reported ratings and feedback regarding satisfaction and overall experience with the intervention.

  End of the intervention (approximately 2 weeks)

• Usability outcome

  Usability will be assessed using the System Usability Scale (SUS), a 10-item self-report questionnaire. Total scores range from 0 to 100, with higher scores indicating better usability of the intervention.

  End of the intervention (approximately 2 weeks)

Secondary Outcomes (4)

• Suicide ideation

  Baseline, end of the 2-week intervention, and 1-month follow-up

• Psychological flexibility and inflexibility

  Baseline, end of the 2-week intervention, and 1-month follow-up

• Psychological Distress

  Baseline, end of the 2-week intervention, and 1-month follow-up

• Mental well-being

  Baseline, end of the 2-week intervention, and 1-month follow-up

Other Outcomes (2)

• Qualitative Feedback and Design Recommendations

  Through study completion, an average of 6 months

• Cultural Relevance

  Through study completion, an average of 6 months

Study Arms (1)

Digital ACT Intervention

EXPERIMENTAL

The Digital ACT Intervention will be co-designed with stakeholders and informed by co-design activities. The intervention aims to support adults experiencing suicidal thoughts through a digital platform.

Behavioral: Digital ACT Intervention

Interventions

Digital ACT Intervention BEHAVIORAL

A co-designed digital Acceptance and Commitment Therapy (ACT) intervention for suicide prevention

Digital ACT Intervention

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Aged 18 years or older;
• Have experienced suicidal thoughts and/or behaviors;
• Able to read and communicate in Chinese; Professionals
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• Aged 18 years or older;
• Professionals with experience relevant to suicide prevention, Acceptance and Commitment Therapy (ACT), digital mental health, or related fields;

You may not qualify if:

• Unable to provide informed consent or participate in study activities;
• Currently experiencing acute suicide risk requiring immediate intervention;
• Severe cognitive impairment or active psychotic symptoms that would prevent participation.

Sponsors & Collaborators

• The Hong Kong Polytechnic University: lead

Study Sites (1)

The Hong Kong Polytechnic University

Hong Kong, China

Location

MeSH Terms

Conditions

Suicide; Suicide Prevention

Condition Hierarchy (Ancestors)

Self-Injurious Behavior; Behavioral Symptoms; Behavior

Study Officials

• Tao Zhang

  The Hong Kong Polytechnic University

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Tao Zhang

CONTACT

+85294233827; tao-t.zhang@connect.polyu.hk

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 9, 2026
• First Posted: July 29, 2026
• Study Start: July 15, 2026
• Primary Completion (Estimated): October 31, 2026
• Study Completion (Estimated): December 30, 2026
• Last Updated: July 29, 2026

Record last verified: 2026-06

Locations

CN (1)