Smartphone App and CO Self-monitoring for Smoking Cessation (SMART-CO)

Alain Nordmann

Status and phase: Terminated; Phase 4

Conditions: HIV; Smoking

Treatments: Other: Smartphone app/CO self-monitoring

Study type: Interventional

Funder types: Other

Identifiers

NCT02840513

AN1

Details and patient eligibility

About

This randomized controlled trial is going to evaluate whether an intervention consisting of a smartphone application to assist smokers living with HIV to quit in combination with CO self-monitoring compared to stop smoking counselling by physicians during usual care results in higher self-reported and biochemically verified smoking cessation rates at 6 months.

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Enrollment: 81 patients

Sex: All

Ages: 16+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

HIV-infected smokers ≥ 16 years and smoking ≥ 3 cigarettes /day enrolled into the Swiss HIV Cohort Study Willingness to quit smoking Speaking one or more of offical Swiss national languages or English Users of smartphone (specifically iPhone 5, 5c, 5s, 6, 6+ running iOS Version 8.0+; smartphones with resolution of at least 800x400 pixels running, Android Version 5.0+, and Android smartwatches) Informed consent

Exclusion criteria

Limitations in hearing, comprehension or vision problems that preclude full study participation Participants with a life expectancy of less than 12 months due to any serious medical condition

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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81 participants in 2 patient groups

Smartphone app/CO self-monitoring

Experimental group

Description:

The app offers a coaching function where users receive personalized messages to encourage smoking cessation and advice for behavioural changes. For the first 4 weeks of the intervention, individuals will also be asked to blow daily into a breath carbon monoxide monitor before going to sleep. Depending on the results of the breath test, individualized messages will be delivered by the Smokelyzer feedback app to either enhance maintenance of abstinence or increase the motivation to quit. After the first 4 weeks, participants will use the breath carbon monoxide monitor at least twice a week until the end of the 6-month study. The app will react with positive feedback in individuals doing well with smoking cessation and messages to encourage individuals with difficulties quitting to smoke.

Treatment:

Other: Smartphone app/CO self-monitoring

Control

No Intervention group

Description:

Participants in the control group will be managed according to usual care as regularly provided by their SHCS physicians. Physicians will motivate patients to quit, emphasise the advantage of quitting, and provide patients with an information card that contains short advices how to quit and addresses of stop smoking clinics. The Swiss HIV Cohort Study study nurse will enter past or current use as well as of nicotine replacement therapy or use of other pharmaceutical support to quit smoking in the online study form