A Smart Approach to Treating Tobacco Use Disorder in Persons Living With HIV (SMARTTT)

December 11, 2025 updated by: Yale University
Many people living with HIV (PLWH) smoke. Smoking in these individuals is often undertreated. This study plans to assess the ability of various clinical pathways involving tobacco treatment medications and contingency management (paying smokers for not smoking) to improve smoking cessation in a group of PLWH.

Study Overview

Detailed Description

Using a Sequential Multiple Assignment Randomized Trial (SMART) design, this project is a two-arm, two-stage randomized trial of 320 adult PWH who smoke cigarettes and receive care in one of three health systems (targeted enrollment changed from 632 to 320 with NCI approval and IRB protocol amendment). At inception, participants will be randomized to either combination nicotine replacement therapy (NRT, patch + short-acting NRT) or combination NRT+contingency management (CM). At 12 weeks, responders (non-smoking participants confirmed by exhaled carbon monoxide [eCO] or collateral verification) in both arms will receive 12 more weeks of the same treatment. Non-responders (participants with continued smoking by self-report and/or eCO) in both the NRT and NRT+CM arms will be re-randomized to 12 weeks of treatment, either with medication switch to oral medication, varenicline or bupropion, or intensified level of CM (start CM if no CM during first 12 weeks, or CM with higher reward schedule ["CM plus"] if NRT+CM group initially). The intervention will be delivered by trained clinical pharmacists. The primary outcomes will be self-reported reduction in average cigarettes smoked per day at 24 weeks and 12 weeks (primary outcome changed from eCO-confirmed abstinence to self-reported abstinence with NCI approval and IRB protocol amendment). The specific aims of the proposed study are to: (1) identify the optimal adaptive approach to promote reduced tobacco use (changed from eCO-confirmed smoking abstinence with NCI approval and protocol amendment) (2) study the effectiveness of various adaptive strategies on CD4 count, HIV viral suppression, and VACS index (validated measure of morbidity and mortality risk); and (3) grounded in implementation science and using aHybrid Effectiveness-Implementation Type I design, identify barriers and facilitators to delivering our intervention to inform future implementation.

Study Type

Interventional

Enrollment (Actual)

323

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Connecticut
      • Bridgeport, Connecticut, United States, 06110
        • Bridgeport Hospital Infectious Disease Clinic
      • New Haven, Connecticut, United States, 06510
        • Yale University School of Medicine
    • New York
      • Brooklyn, New York, United States, 11203
        • SUNY Downstate STAR Clinic
      • New York, New York, United States, 10029
        • ICAHN School of Medicine at Mount Sinai

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • HIV positive;
  • >= 18 years old
  • Receiving HIV care at Yale-New Haven Hospital, Bridgeport Hospital, Mount Sinai Hospital, or SUNY Downstate STAR clinic;
  • Have smoked >= 100 cigarettes in lifetime;
  • Currently smokes some days or every day;
  • Smokes, on average, >= 5 cigarettes per day;
  • Able to provide written informed consent.

Exclusion Criteria:

  • Using only non-cigarette nicotine products (i.e., e-cigs, Juul, etc.);
  • Currently using NRT, VAR, or bupropion (defined as use in the prior 7 days);
  • Self-report or urine testing confirming pregnancy, nursing, or trying to conceive;
  • Life-threatening or unstable medical, surgical, or psychiatric condition;
  • Inability to provide at least one collateral contact (family member or friend);
  • Living out of state;
  • Unable to read or understand English (except at Mount Sinai site).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 12 wks NRT+CM / 12 wks NRT+CM
Nicotine replacement therapy combined with contingency management. Responders remain on same treatment for second 12 weeks.
Participants will be prescribed both long-acting and short-acting nicotine replacement therapy.
Participants will be financially rewarded for abstinence to tobacco.
Experimental: 12 wks NRT+CM/ 12 wks VAR or bupropion+CM
Nicotine replacement therapy combined with contingency management. Non-responders switch to varenicline or bupropion combined with contingency management for second 12 weeks.
Participants will be prescribed both long-acting and short-acting nicotine replacement therapy.
Participants will be prescribed varenicline (Chantix) or bupropion (Wellbutrin).
Participants will be financially rewarded for abstinence to tobacco.
Experimental: 12 wks NRT+CM/12 wks NRT+CM plus
Nicotine replacement therapy combined with contingency management Non-responders switch to nicotine replacement therapy combined with intensified contingency management for second 12 weeks.
Participants will be prescribed both long-acting and short-acting nicotine replacement therapy.
Participants will be financially rewarded for abstinence to tobacco.
Experimental: 12 wks NRT/ 12 wks NRT
Nicotine replacement therapy alone. Responders remain on nicotine replacement therapy.
Participants will be prescribed both long-acting and short-acting nicotine replacement therapy.
Experimental: 12 wks NRT/ 12 wks VAR or bupropion
Nicotine replacement therapy alone. Non-responders switch to varenicline or bupropion alone for second 12 weeks.
Participants will be prescribed both long-acting and short-acting nicotine replacement therapy.
Participants will be prescribed varenicline (Chantix) or bupropion (Wellbutrin).
Experimental: 12 wks NRT/ 12 wks NRT+CM
Nicotine replacement therapy alone. Non-responders switch to nicotine replacement therapy combined with contingency management for second 12 weeks.
Participants will be prescribed both long-acting and short-acting nicotine replacement therapy.
Participants will be financially rewarded for abstinence to tobacco.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Self Reported Reduction in Average Cigarettes Smoked Per Day at 12 Weeks
Time Frame: Week 12
Self reported reduction in average cigarettes smoked per day at 12 weeks
Week 12
Self Reported Reduction in Average Cigarettes Smoked Per Day at 24 Weeks
Time Frame: 24 weeks
Self reported reduction in cigarettes smoked per day at 24 weeks
24 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Exhaled Carbon Monoxide (eCO) Confirmed Smoking Abstinence at 12 Weeks
Time Frame: 12 weeks from baseline
Number of participants with smoking abstinence confirmed by exhaled carbon monoxide or next closest informant verification
12 weeks from baseline
Exhaled Carbon Monoxide (eCO) Confirmed Smoking Abstinence at 24 Weeks
Time Frame: 24 weeks from baseline
Number of participants with smoking abstinence confirmed by exhaled carbon monoxide or next closest informant verification
24 weeks from baseline
VACS Index 2.0 Score
Time Frame: 24 weeks from baseline
The Veterans Aging Cohort Study (VACS) 2.0 Index is A validated measure of morbidity and mortality. It estimates risk of 5-year all-cause mortality in patients with HIV. Total score range of 0-129. A higher total score indicates a greater risk of adverse health outcomes.
24 weeks from baseline
CD4 Count
Time Frame: 24 weeks from baseline
CD4 lymphocyte cell count. Normal range is 500-1200 cells per cubic millimeter. As HIV infection progresses, CD4 count drops.
24 weeks from baseline
HIV Viral Load, Detectable
Time Frame: 24 weeks from baseline
HIV viral load greater than 200 copies per milliliter of blood and detectable on standard lab test
24 weeks from baseline

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Identification of Barriers and Facilitators
Time Frame: Baseline and Up to 4 years
Using a Hybrid Effectiveness-Implementation Type I design, identify barriers and facilitators to delivering our intervention to inform future implementation.
Baseline and Up to 4 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Steven Bernstein, MD, Dartmouth College
  • Principal Investigator: E. Jennifer Edelman, MD, MHS, Yale University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 27, 2020

Primary Completion (Actual)

October 24, 2024

Study Completion (Actual)

October 24, 2025

Study Registration Dates

First Submitted

July 22, 2020

First Submitted That Met QC Criteria

July 25, 2020

First Posted (Actual)

July 28, 2020

Study Record Updates

Last Update Posted (Actual)

January 5, 2026

Last Update Submitted That Met QC Criteria

December 11, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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