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Chatbot aims to curb chemsex among men in hong kong

NCT ID NCT07472582

Knowledge-focused Sponsor: Chinese University of Hong Kong Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
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Expanded access (paused)
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Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a chatbot that gives personalized advice can help men who have sex with men reduce chemsex (using drugs before or during sex). About 100 men in Hong Kong will be split into two groups: one gets weekly videos on chemsex risks, and the other gets the same videos plus a chatbot that tailors tips to their readiness to change. Researchers will check if the chatbot group reports less chemsex after 3 and 6 months.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Mar 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Male participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Hong Kong men aged at least 18 years * Able to understand Cantonese * Had anal intercourse with at least one man within the past six months * Willingness to provide contact information for follow-up * Having access to WhatsApp Exclusion Criteria: * Self-reported a diagnosis of schizophrenia or bipolar disorder

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Conditions

The condition(s) this trial relates to.

Behavior

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Behavior

How to take part

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  1. The official record

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