New app aims to help HIV patients kick the habit
NCT ID NCT05886621
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This pilot study tested a smartphone app called SiS-H, designed to help people with HIV quit smoking. 66 participants were randomly assigned to use either SiS-H or a standard quit guide app. The study measured how often people used the app and how acceptable it was, rather than directly measuring quit rates.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- smartphone app (SiS-H) for smoking cessation
- What this could lead to
- If successful, this app could provide a convenient, effective tool to help people with HIV quit smoking, improving their overall health.
- What could go wrong
- This is a small pilot study with only 66 participants, focused on feasibility and app usage, not on actual quit rates. The app may not be more effective than existing free options.
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
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66 people
The number who actually took part.
- Started
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Nov 2023
- Finished
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Jul 2025
- 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
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide 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: * 18+ years of age * current smoker, who has smoked at least 100 cigarettes lifetime, and smokes at least weekly * HIV positive, by self-report * currently engaged in HIV clinical care (i.e., saw an HIV care provider within the last year) * willing to let study staff look at medical record to extract HIV-relevant information (e.g., CD4 T cell count) * willing to make a quit attempt as part of this study * willing to give permission to study staff to look at app usage for the assigned smoking cessation app * willing and able to comply with study procedures Exclusion Criteria: * does not own a smartphone * does not have daily access to the owned smartphone
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Behavioral Medicine Program (BMED)
Boston, Massachusetts, 02114, United States
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