About this trial
The overall objective of the study is to optimize a smoking cessation treatment package for people with HIV (PWH) that can be integrated into existing HIV care in South Africa.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
≥18 years of age, and
attend one of the selected study clinics, and
have a confirmed diagnosis of HIV (evidenced by one of: clinic or hospital prescription for combination antiretroviral therapy (ART), or a current ART medication pack that has the patient's name documented thereon) and
have been taking ART for at least three consecutive months or evidence of taking ART for four of the past six months (to ensure engagement in care at the recruitment clinic), and
Disqualifiers
Currently (within the previous 14 days) receiving or using smoking cessation counselling or pharmacotherapy, or
are unable to participate due to severity of medical illness, guided by a Karnofsky score of ≤ 40, or
have a history of seizures, cancer, heart disease, stroke, myocardial infarction, stomach ulcers, kidney failure, or liver failure, or
have generalized eczema or psoriasis, or
Trial design
Factorial
Treatments tested in this trial
Varenicline
DrugAt enrolment, a 12-week course of varenicline in the commercially available package will be dispensed by a study clinician.
Nicotine patch
DrugA 12-week course of nicotine patches and nicotine gum will be dispensed to the participant by the counsellor according to randomization into the c-NRT condition. c-NRT will be provided per label instructions given number of cigarettes the participant smokes per day and will be provided in the commercially available package.
Nicotine gum
DrugA 12-week course of nicotine patches and nicotine gum will be dispensed to the participant by the counsellor according to randomization into the c-NRT condition. c-NRT will be provided per label instructions given number of cigarettes the participant smokes per day and will be provided in the commercially available package.
Intensive Behavioral Counselling
BehavioralParticipants randomized to the Intensive Behavioural Counselling condition will receive in-person intensive (\~45 minutes) behavioural counselling in the clinic at screening and at weeks 2, 4, 8, and 12. Additionally, on non-clinic visit weeks participants will receive (1) one phone call each week from the clinic counsellor, and (2) two text messages each week providing encouragement and advice.
Peer Counselling
BehavioralParticipants randomized to the Peer Support condition will be engaged by a peer counsellor over weeks -2 to 12. Peer counselling will follow a flexible framework for contact with participants, which will include in-person and phone-based check-ins, depending upon individual participant preference. Peer counsellors will visit the counsellors' assigned participant in-person at participants' home, workplace, or other setting based on participant preference at least during weeks -2, 2, 4, 8 and 12; additional in-person contact will be provided upon participant request.
Treatment groups
16
Treatment groupsSee each treatment group below.
Trial outcomes
Primary outcomes
7-day point prevalence tobacco abstinence at 52 weeks
Verified by exhaled breath CO \< 7ppm and a negative urine cotinine test.
Secondary outcomes
7-day point prevalence tobacco abstinence at 26 weeks
Verified by exhaled breath CO \< 7ppm and a negative urine cotinine test. Urine cotinine will be excluded as an indicator of abstinence for those self-reporting c-NRT use in the preceding week.
7-day point prevalence tobacco abstinence at 12 weeks
Verified by exhaled breath CO \< 7ppm and a negative urine cotinine test. Urine cotinine will be excluded as an indicator of abstinence for those self-reporting c-NRT use in the preceding week.
Sponsors and contacts
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Johns Hopkins University
Lead sponsor
Colorado State University
Collaborator
New York University
Collaborator
Perinatal HIV Research Unit of the University of the Witswatersrand
Collaborator
National Cancer Institute (NCI)
Collaborator