A Smartphone App for African American Smokers

This study is testing a smartphone app called HealthyCells, designed to help African American smokers quit. The app combines existing helpful tools with messages, images, and videos specifically for African Americans. To join, you must be 18 or older, identify as Black/African-American, smoke at least 5 cigarettes a day, and be ready to quit within 3 weeks. You also need to be willing to use nicotine replacement therapy (NRT), a smartwatch, the app, and work with a smoking cessation counselor. The study will look at whether you successfully quit smoking, confirmed by a biochemical test, and if you reduce the time you spend sitting (sedentary time) after 8 weeks. The current status of this study is unclear, and it plans to enroll 30 participants.

Study design
This is an interventional study, meaning participants will receive a specific treatment (the HealthyCells app). It plans to enroll 30 participants.
What's involved
You would use the HealthyCells app, a smartphone watch, and NRT, and work with a smoking cessation counselor. You would also provide feedback through interviews.
Compensation
Not stated in the trial record.
Follow-up
Your smoking cessation and sedentary time will be measured at 8 weeks.

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NCT05188287

A Culturally Tailored Smartphone Application for African American Smokers

Recruiting
NAAges 18+InterventionalTreatment
University of Oklahoma
~30 participants
Updated 2026-05-01 on ClinicalTrials.gov
What's tested:HealthyCells

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Biochemically-Verified smoking cessation
Measured over 8 weeks
+1 more outcome measured
Smoking Cessation
1 sites across 1 states
Oklahoma1
  • Darla Kendzor, PhD · STUDY_CHAIR · TSET Health Promotion Research Center

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Eligibility criteria

Inclusion

Must be 18 years of age or older
Must identify as Black/African-American
Must smoke at least 5 cigarettes or cigarette equivalents per day (i.e., cigarettes, cigars, and cigarillos)
Must be willing to use NRT, a smartphone watch and app, and a smoking cessation counselor to help them quit smoking
Must be willing to quit smoking within the next 3 weeks
Must have a CO level of \>6 ppm at app activation.
Are not currently active, defined as engaging in less than 150 minutes of moderate-intensity aerobic physical activity (e.g., brisk walking) or 75 minutes of vigorous-intensity aerobic physical activity (e.g., running or jogging) each week?

Exclusion

Does not give permission to administer screening survey
Does not understand or speak English
Is not a U.S. citizen or permanent U.S. resident
Does not use tobacco products
Does not want to provide SSN, residency status, or OUHSC employee status
Is not willing to abstain from smoking marijuana or cannabis during their quit attempt
Is not willing to upload a picture of their tobacco product
Is not ready to quit smoking as defined by scoring 4 or lower on the readiness to quit ladder
Has a medical condition that prevents the use of NRT without approval from a healthcare provider
Has had a serious allergic reaction or side effect from the use of NRT
Does not give permission to collect contact information
Must not be currently active, defined as engaging in less than 150 minutes of moderate-intensity aerobic physical activity (e.g., brisk walking) or 75 minutes of vigorous-intensity aerobic physical activity (e.g., running or jogging) each week.
  • Biochemically-Verified smoking cessation8 weeks

    Biochemically confirmed 7-day point prevalence abstinence using the CO criteria cutoff of ≤ 6 ppm

  • Accelerometer-verified reduction in sedentary time8 weeks

    Accelerometer-verified confirmation of a \> 30-minute daily net reduction in sedentary time