Optimizing Tobacco Use Treatment for PLWHA

Phase 3

Recruiting

• Conditions: HIV/AIDS; Nicotine Dependence
• Interventions: Drug: Varenicline; Behavioral: Standard treatment; Drug: Nicotine patch; Behavioral: Standard treatment + Managed Problem Solving (MAPS) adherence intervention

• Registration Number: NCT04176172
• Lead Sponsor: University of Pennsylvania

Brief Summary

The advent of anti-retroviral therapy (ART) for people living with HIV/AIDS (PLWHA) substantially improved life expectancy but has also led to the critical need to address modifiable risk factors associated with cancer and cardiovascular disease, such as tobacco smoking. HIV-infected smokers lose more life-years due to tobacco use than they do to their HIV infection.

There have been relatively few studies of tobacco use treatments for PLWHA and systematic reviews show that there are insufficient data to conclude that tobacco dependence interventions that are efficacious in the general population are efficacious for PLWHA. Further, many studies in this area have lacked randomization and a control group, infrequently used an intent-to-treat (ITT) approach and biological verification of tobacco abstinence, and lacked post-treatment follow-up.10 What investigators do know thus far is that behavioral interventions and the nicotine patch yield moderate effects on cessation; and 2 recent placebo-controlled trials - one in France and one by this lab - found that varenicline is safe and effective for treating tobacco use among PLWHA, but yield quit rates that are substantially lower than those reported in the general population. Thus, there is a critical need to rigorously test novel ways to optimize tobacco cessation treatment for smokers with HIV.

Detailed Description

Smoking among PLWHA is a critical public health issue, with the rate of smoking 2-3 times greater than it is in the general population and the health risks of smoking outweighing those associated with the virus itself. Unfortunately, remarkably few studies have evaluated smoking cessation interventions for PLWHA and the available literature indicates that both behavioral and pharmacological smoking cessation interventions yield modest effect sizes and quit rates that are considerably lower than in the general population. A sizable literature, including studies by our research team, indicates that using the nicotine metabolite ratio (NMR) to personalize the selection of medications for tobacco use and the MAPS intervention to augment adherence to these medications can optimize treatments for tobacco use among PLWHA. The NCI recognized the potential for clinicians to use the NMR to individualize cessation treatment in order to improve effectiveness (https://www.cancer.gov/about-nci/budget/plan/public-health) and the Centers for Disease Control and Prevention (CDC) has endorsed MAPS as an evidence-based approach to increasing medication adherence among PLWHA. As such, this trial will test these intervention optimization strategies to determine if individually or together they can represent an effective approach to treating tobacco use in this under-served population of smokers. As a major advance for this area of work, the investigators will use rigorous methodology to evaluate these optimization strategies (i.e., a randomized design, biological verification, an ITT approach, and 6-month outcome assessments) and, overall, our approach is consistent with the multiphase optimization strategy (MOST) framework, which has been used to identify intervention components that maximize cessation outcomes. This trial will also assess theoretically derived and empirically based mechanisms through which these optimization strategies affect cessation and explore sub-groups who are more or less responsive to these strategies. In the end, this trial, which is consistent with the Office of AIDS Research trans-NIH Strategic Plan for HIV and HIV-Related Research (https://www.oar.nih.gov/hiv-policy-and-research/research-priorities), will determine if getting the right medication to the right person and making sure they adequately use the medication optimizes tobacco cessation treatments among PLWHA as a critical way to improve health outcomes for this population.

Study Timeline

• Study First Submitted: 2019-11-21
• Study First Submitted QC: 2019-11-21
• Study First Posted: 2019-11-25
• Study Start: 2020-02-17
• Status Verified: 2024-12
• Last Update Submitted: 2024-12-03
• Last Update Posted: 2024-12-06
• Primary Completion: 2025-08-31
• Study Completion: 2025-08-31

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 340

Inclusion Criteria

• >18 years, smoke daily for the past 30 days
• Confirmed HIV+ (exhibit viral load of <1000 copies/mL)
• Residing in the geographic area close to one of the sites for at least 7 months
• Able to use varenicline/TN patch safely

Key

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Exclusion Criteria

• Current untreated and unstable diagnosis of substance abuse/dependence
• Current diagnosis of unstable and untreated major depression, psychosis or bipolar disorder
• Suicide risk as measured by the C-SSRS
• Current use or discontinuation within last 14 days of quit smoking medications
• Cancer, heart disease, stroke or MI within the past 6 months requires study physician approval
• Uncontrolled hypertension
• History of epilepsy or seizure disorder requires study physician approval
• Women who are pregnant, planning a pregnancy, or lactating
• Use of e-cigarettes, chewing tobacco, snuff or snus
• Generalized eczema or psoriasis
• A reaction or sensitivity to a nicotine patch or any other transdermal medication requires study physician approval
• Currently participating in a smoking cessation program

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Varenicline & Standard Cessation Counseling	Standard treatment	varenicline plus standard behavioral smoking cessation treatment
NMR-Tailored Medication & Standard Cessation Counseling + MAPS	Nicotine patch	varenicline or nicotine patch plus standard behavioral smoking cessation treatment with Managed Problem Solving adherence intervention
NMR-Tailored Medication & Standard Cessation Counseling + MAPS	Standard treatment + Managed Problem Solving (MAPS) adherence intervention	varenicline or nicotine patch plus standard behavioral smoking cessation treatment with Managed Problem Solving adherence intervention
Varenicline & Standard Cessation Counseling	Varenicline	varenicline plus standard behavioral smoking cessation treatment
NMR-Tailored Medication & Standard Cessation Counseling + MAPS	Varenicline	varenicline or nicotine patch plus standard behavioral smoking cessation treatment with Managed Problem Solving adherence intervention

Primary Outcome Measures

Name	Time	Method
Point-prevalence abstinence	26 weeks (24 weeks post target quit date)	Participants will be considered abstinent if they report abstinence, not even a puff of a cigarette, for \>7 days prior to week 26 (24 weeks post target quit date) and have an expired carbon monoxide reading of ≤8 parts per million at week 26.

Secondary Outcome Measures

Name	Time	Method
Continuous abstinence	26 weeks (24 weeks post target quit date)	No smoking between target quit date (week 2) and week 26
Time to 7-day relapse	26 weeks (24 weeks post target quit date)	Time to relapse as defined by 7 or more consecutive days of self-reported smoking (no grace period)
Six-month quit rate	6 months	The number of days in a six-month period of self-reported smoking
Prolonged abstinence	26 weeks (24 weeks post target quit date)	\<7 consecutive days of self-reported smoking after a 2-week grace period

Trial Locations

Locations (2)

Northwestern University; 🇺🇸 Chicago, Illinois, United States

University of Pennsylvania; 🇺🇸 Philadelphia, Pennsylvania, United States