Recruiting

Observational Study

Sponsor:

UCLA

Code:

NCT06170437

Conditions

Tobacco Dependence

Tobacco Smoking

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Interventions

Smoke-free home resident intervention

Lay Health Worker coaching

Study Details

Brief summary:

Comprehensive smoke-free policies have the potential to substantially reduce tobacco-related disparities among populations in subsidized housing. This study fills this gap by identifying approaches to increase the implementation of smoke-free policies in all types of subsidized housing by increasing the voluntary adoption of smoke-free homes and promoting access to smoking cessation services.

Conditions

Tobacco Dependence

Tobacco Smoking

Study ID

NCT06170437

Start date

Jul 12, 2024

Status verified date

Feb, 2025

Completion date

Aug 31, 2027

Anticipated

Primary completion date

Dec 31, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Inclusion Criteria:

Eligible resident participants

  • Current smokers defined as:

  • Smoked at least 100 cigarettes in lifetime
  • Smoked daily in the past 7 days, and at least 5 cigarettes per day, verified by expired CO ≥ 5 parts per million \[ppm\] Smokerlyzer CO+ monitor),
  • Smoke in their home
  • Expect to live in the subsidized housing site for at least 12 months
  • Age ≥ 18 years
  • Speak Chinese (Cantonese or Mandarin), English, Spanish, or Vietnamese
  • Able to provide informed consent.

Exclusion Criteria:

  • Contraindication to any study-related procedures or assessment

Study Design

Enrollment

544 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Prevention

Interventions and Outcome Measures

Arms

experimental: Intervention

The study's investigators will train bilingual study staff to deliver the intervention to residents using a script that matches the content in the smoke-free home intervention pamphlet. The in-person delivery of the intervention and pamphlet will be the primary modes of intervention delivery to residents. The pamphlet will include: (1) the harms of tobacco, e-cigarette use, cannabis use and exposure (secondhand and thirdhand), (2) an exercise to calculate personal cost of tobacco use, (3) benefits of a smoke-free home, (4) skill-building on how to adopt a smoke-free home, and (5) motivational language on smoke-free home adoption. The study staff will qualitatively assess participants' knowledge by prompting questions on the topics covered and will refer participants to lay-health workers (LHWs) for one-on-one coaching. Participants will receive a pledge to designate their homes smoke-free.

no intervention: Waitlist Control Group

The current standard of care does not include any interventions for smoke-free home adoption or referrals to tobacco treatment resources. At the end of the primary endpoint (6 months), control participants will be offered the intervention.

Interventions

Smoke-free home resident intervention

Study staff delivered intervention on how to adopt a smoke free home using a pamphlet

Lay Health Worker coaching

Brief tobacco cessation coaching by lay health worker housing staff with residents within 2 weeks of the smoke-free home resident intervention, and on a monthly schedule as part of their routine encounters with residents (total 6 sessions).

Primary outcome measure

  • Percentage of participants adopting a smoke-free home for ≥90 days [ Time Frame: 6 months ]

Central Contacts and Locations

Central contacts

Ana Martinez

415-839-0572ana.martinez4@ucsf.edu

Weijie Wang

Weijie.Wang@ucsf.edu

Locations

University of California, San Francisco

Recruiting

San Francisco, California, United States, 94143

Contacts

Ana Martinez

ana.martinez4@ucsf.edu

Weijie Wang

weijie.wang@ucsf.edu

Principal Investigator:

Maya Vijayaraghavan, MD

More Information

Sponsor

University of California, San Francisco

Last update posted

Feb 24, 2025

Last verified

Feb, 2025

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by University of California, San Francisco on 2025-02-24.