NCT07420426

Instant Message-delivered Personalised Acceptance and Commitment Therapy (IMPACT) for Neuropsychiatric Symptoms in Persons With Mild Cognitive Impairment

Instant Message-delivered Personalised Acceptance and Commitment Therapy (IMPACT) for Neuropsychiatric Symptoms in Persons With Mild Cognitive Impairment: a Mixed Methods Study

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 160 (estimated)
• Sponsor: The University of Hong Kong · Academic / Other
• Sex: All
• Age: 50 Years
• Healthy volunteers: Not accepted

Summary

This study aims to develop an automated instant message-delivered intervention (i.e., EMI) for people with mild cognitive impairment, and to investigate the feasibility and effectiveness of the intervention.

Detailed description

1. Message contents: The message content library will consist of two parts: 1. brief mild cognitive impairment messages (optional), and 2. acceptance and commitment therapy messages (mandatory). 2. Message delivery * Regular messages: The messages in the two parts will be sent regularly to each participant. As personalisation is a core process subject to behavioural changes, the content, frequency, and timing of the messages will be determined based on participants' preferences. To save labour and increase efficiency, the investigators will develop a message 'scheduler' program. The investigators will pre-set the message scheduler, which will then automatically send out content to the participants according to their preferences. The development of the program is highly useful particularly in cases which participants prefer to receive messages during non-office hours. * Real-time support messages (chat-type): Chat-based support will be given to the participants as an extension of the regular messages. However, the participants will be informed beforehand that the RA will only play a supportive role and will not provide formal care. The number of the chat messages will not be limited, but the real-time support messages will only be provided during working hours (i.e., 9am-10pm) on weekdays to limit the RA's workload. Control Group: The control group will receive instant messages about mental health management from GovHK website (https://www.gov.hk/en/residents/health/mental/), which is open to the public.

Conditions

• Mild Cognitive Impairment (MCI)

Interventions

Type	Name	Description
BEHAVIORAL	automated instant message-guided neuropsychiatric symptoms management	Participants in intervention group will receive the EMI for 9 weeks. Based on the steps of mobile message development recommended by Abroms, et al., we will develop a message content library and protocol for EMI delivery.
BEHAVIORAL	general mental health management	Participants in control group will receive the messages for 8 weeks.The control group will receive instant messages about general mental health management from the HKSAR Government website, which is open to the public (https://www.shallwetalk.hk/en/mental-well-being/mental-well-being-is-related-to-you/), with reminder text messages of follow-up surveys.

Timeline

• Start date: 2025-12-08
• Primary completion: 2026-10-02
• Completion: 2026-10-02
• First posted: 2026-02-19
• Last updated: 2026-02-23

Locations

1 site across 1 country: Hong Kong