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NCT07585357 · ClinicalTrials.gov registry record · NA
Adaptive Mobile Interventions to Reduce Cancer Risk Behaviors
A NA study, sponsored by Johns Hopkins Bloomberg School of Public Health.
- Not yet
- Registry status
- NA
- Development phase
- 7
- Enrollment target
NCT07585357: Clinical Trial NA study, sponsored by Johns Hopkins Bloomberg School of Public Health.
NCT07585357 is a NA study that has not yet begun recruiting, run by Johns Hopkins Bloomberg School of Public Health. The registered enrollment target is 7 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT07585357, a NA study, has not yet begun recruiting, sponsored by Johns Hopkins Bloomberg School of Public Health.
- NOT YET RECRUITING
- Registry status
- NA
- Development phase
- 7 participants
- Enrollment target
Study Summary
Tobacco use remains the leading cause of preventable death, causing over 400,000 annual deaths in the United States alone. Smartphone-based interventions, particularly those leveraging real-time adaptive messaging, represent a promising yet underutilized approach to delivering personalized tobacco and cannabis treatment. The investigator's ongoing NCI funded micro-randomized trial (MRT; R01 CA246590) has shown initial feasibility in reducing smoking urges through situationally tailored cognitive-behavioral therapy (CBT) and mindfulness-based acceptance and commitment-based therapy (ACT) messages triggered by real-time contextual data (e.g., geolocation, momentary stress). To advance from a static MRT framework to a dynamic, data-driven just-in-time adaptive intervention (JITAI), this project aims to develop, test, and refine a reinforcement learning (RL) algorithm that can continuously adapt to user needs in real-time, enhancing treatment outcomes for various tobacco and cannabis products. To ensure optimal usability and engagement, the investigators will conduct user-centered testing with the developed RL-based intervention delivery in one cohort (N=7) over 45 days. This will include usability assessment via the System Usability Scale, analysis of app interaction metrics, and semi-structured interviews to gather feedback for refining message content, timing, and design.
Primary Outcome
The primary outcome will be change in participants' rating of smoking urge in EMA-post surveys, prompted 15 minutes after intervention message delivery, and controlling for the ratings in EMA-pre surveys. Urge will be assessed by a single item on a 5-point scale, ranging from 1-5; (1-very low, to 5-very high).
Interventions
- BEHAVIORAL Smartphone-based intervention messages
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 7 participants |
| Start Date | 2026-07 |
| Est. Completion | 2026-09 |
| Phase | NA |
What is known before NCT07585357 opens enrollment
NCT07585357 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 7 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower).
The record links to 0 conditions, and to 1 intervention - of which Smartphone-based intervention messages is the first listed.
NCT07585357 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT07585357 about?
NCT07585357 is a clinical study titled "Adaptive Mobile Interventions to Reduce Cancer Risk Behaviors". Tobacco use remains the leading cause of preventable death, causing over 400,000 annual deaths in the United States alone. Smartphone-based interventions, particularly those leveraging real-time adaptive messaging, represent a promising yet underutilized approach to delivering personalized tobacco a...
What is the current status of trial NCT07585357?
This trial is currently not yet recruiting. It is a NA study. The enrollment target is 7 participants. The study started on 2026-07. Estimated completion is 2026-09.
What interventions are being tested in trial NCT07585357?
The interventions under investigation include: Smartphone-based intervention messages (BEHAVIORAL).
Who is sponsoring clinical trial NCT07585357?
This trial is sponsored by Johns Hopkins Bloomberg School of Public Health, which has 187 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT07585357's enrollment target sits among peer trials
7 1982nd of 2000 higher than 18 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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