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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05846841
Other study ID # 202205090
Secondary ID 1R01DA056050
Status Recruiting
Phase N/A
First received
Last updated
Start date September 29, 2023
Est. completion date September 30, 2028

Study information

Verified date April 2024
Source Washington University School of Medicine
Contact Li-Shiun Chen, ScD, MD, MPH
Phone 314-362-3932
Email li-shiun@wustl.edu
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study examines the application of precision treatment intervention for smoking cessation from both the clinician perspective and patient perspective, and compares it to usual care on tobacco treatment in the primary care setting. The precision treatment intervention includes personalized tobacco treatment recommendations using the patient's clinical, genetic, and biomarker information. This approach may increase effectiveness and adherence for the patient, and increase the clinician's likelihood of prescribing.


Description:

The overarching goal of this study is to test the impact of a multilevel precision treatment intervention aiming to address gaps in clinician and patient uptake of tobacco treatment and overall treatment effectiveness. This study builds on evidence that (1) genetic and metabolic factors may inform precision tobacco treatment and (2) increasingly high demand for precision treatment, in particular, may signal its potential to activate behavior change. The multilevel precision treatment intervention to be tested--PrecisionTx-- provides the opportunity to present personalized risk, benefit, and treatment recommendation to increase clinician ordering, patient uptake, and overall effectiveness of tobacco treatment. This study aims to understand the relative benefit of precision treatment over usual care and associated mechanistic and implementation outcomes. Therefore, the investigators propose a 2-arm cluster randomized controlled trial of 50 clinicians and 800 screen-eligible patients (~16 per clinician) from diverse primary care settings. Clinicians and patients will be randomized with 1:1 allocation to usual care (UC) vs. precision treatment (PT) to evaluate the effect of precision treatment on smoking cessation success. In Aim 1, the investigators will test the effect of PT on clinician prescribing (or patient receipt of medication when prescription is not needed) and patient use of medication for smoking cessation. The investigators hypothesize that patient receipt of tobacco treatment medication for smoking cessation at 6 months post-intervention will be higher in PT vs UC. The investigators also hypothesize that patient use of cessation medication at 6 months post-intervention will be higher in PT vs. UC. In Aim 2, the investigators will test the effect of PT on patient smoking abstinence. The investigators hypothesize that patient bioverified smoking abstinence at 6 months will be higher in PT vs. UC. In Aim 3, the investigators will examine mechanisms of behavior change and implementation outcomes. The investigators will evaluate putative mechanisms for PT (e.g., outcome expectancy and withdrawal suppression). The investigators will conduct assessments at baseline, intervention, and 1-month, 3-month, 6-month, and 12-month post-intervention follow-ups. Primary outcomes include patient receipt of tobacco treatment, patient use of tobacco treatment, and patient smoking abstinence. Secondary outcomes include patient receipt of recommended medication, patient medication adherence, and additional patient smoking cessation outcomes. Mechanistic outcomes include clinician level (perceived benefit, outcome expectancy), clinician-patient interaction (self-efficacy), patient-level (perceived risk, outcome expectancy, withdrawal suppression, adverse events). Implementation outcomes will be evaluated based on the RE-AIM framework. The study is an innovative paradigm shift from a traditional treatment model to precision treatment that includes both metabolic and genetic markers to motivate and guide tobacco treatment for both clinicians and patients, integrated within primary care. Smoking is a leading cause of premature death, causing more than half of all cancer deaths. However, tobacco treatment is often not provided and is not highly effective in primary care. New evidence suggests that a precision treatment approach to motivate and guide treatment based on personal genetic and metabolic markers could improve treatment uptake and quit success. This study will test the impact of a multilevel precision treatment intervention on improving tobacco treatment and health outcomes in primary care.


Recruitment information / eligibility

Status Recruiting
Enrollment 850
Est. completion date September 30, 2028
Est. primary completion date March 31, 2028
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Eligibility Criteria for Primary Care Clinicians - Clinician from participating clinic - At least 18 years of age - Can speak and understand English Eligibility Criteria for Primary Care Patients Inclusion: - Patient at participating clinic - Age 18 years or older, inclusive - Current smoking (cigarettes per day >=5) - Can speak and understand English - Willing to consider medication to help reduce craving or smoking such as nicotine patch, lozenge, or varenicline Exclusion: - Active use of smoking cessation medication (within the past 30 days) - Receipt of smoking cessation medication or prescription for smoking cessation medication (within the past 30 days) - Having a contraindication for cNRT or varenicline (allergic reactions, current cardiac problems, pregnancy)

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Precision Treatment
Precision treatment will be informed by practice guidelines (standard of care, brief advice, and guideline awareness), plus patient-specific risk feedback and personalized tobacco treatment recommendations using patients' clinical, genetic, and biomarker information.
Usual Care
Usual care will be informed by practice guidelines (standard of care, brief advice, and guideline awareness).

Locations

Country Name City State
United States Washington University School of Medicine Saint Louis Missouri

Sponsors (2)

Lead Sponsor Collaborator
Washington University School of Medicine National Institute on Drug Abuse (NIDA)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Other Perceived benefits (Clinician) Clinicians' perceived importance and benefits of patients receiving smoking cessation medications will be assessed using a modified version of the Beliefs and Attitudes About Bupropion Scale. Exit interview [after last patient is enrolled per clinician at the time of the last intervention (approximately 3 years)]
Other Outcome expectancies (Clinician) Clinicians' outcome expectancies regarding tobacco treatment will be assessed using a modified version of the Stanford Expectation of Treatment Scale. Exit interview [after last patient is enrolled per clinician at the time of the last intervention (approximately 3 years)]
Other Self-efficacy regarding patient-clinician interaction (Clinician) Clinicians' perceived self-efficacy regarding patient-clinician communication will be assessed using a modified version of the Communication Perceived Self-Efficacy Scale. Exit interview [after last patient is enrolled per clinician at the time of the last intervention (approximately 3 years)]
Other Self-efficacy regarding patient-clinician interaction (Patient) Patients' perceived self-efficacy regarding patient-clinician communication will be assessed using a modified version of the Communication Perceived Self-Efficacy Scale. From intervention through 12 months post-intervention
Other Perceived risk (Patient) Patients' perceived smoking-related disease risks will be assessed using a modified version of the Perceived Susceptibility and Severity Scale. From baseline through 12 months post-intervention
Other Outcome expectancies (Patient) Patients' outcome expectancies regarding tobacco treatment will be assessed using a modified version of the Stanford Expectation of Treatment Scale. From baseline through 12 months post-intervention
Other Withdrawal Withdrawal severity is assessed by Wisconsin Smoking Withdrawal Scale (WSWS). From baseline through 12 months post-intervention
Other Side Effects All reported side effects will be summarized and presented for the study. In addition, the investigators will further identify a pre-specified set of key side effects as being related to drug agonist effects (e.g., nausea, vomiting, racing heart, headache, and sleep disturbance). These will be analyzed as the rate of occurrence during the period of cessation medication use, if applicable. From baseline through 12 months post-intervention
Primary Patient receipt of tobacco treatment medication for smoking cessation This will be quantified by the proportion of enrolled patients who receive cessation medication. 6 months post-intervention
Primary Patient use of cessation medication This will be quantified by the proportion of patients taking any cessation medication from time of enrollment through 6 months post-intervention. 6 months post-intervention
Primary Patient smoking abstinence This will be quantified by the proportion of smokers with bioverified point-prevalent abstinence at 6 months. 6 months post-intervention
Secondary Patient receipt of recommended tobacco treatment This will be quantified by the proportion of enrolled patients who received recommended cessation medication. 6 months post-intervention
Secondary Patient medication adherence This will be quantified by the proportion of medication taken among medication prescribed. 6 months post-intervention
Secondary Patient smoking abstinence among treated This will be quantified by the proportion of smokers with bioverified point-prevalence abstinence among those receiving cessation medication. 6 months post-intervention
Secondary Abstinence Outcomes Across Multiple Time Points The outcome measures abstinence (self-reported no smoking (not even a puff of a cigarette) for at least 7 days prior to the assessment) over these time points. From intervention through 12 months post-intervention
Secondary Smoking quantity across multiple time points The outcome measures smoking quantity (self-reported average cigarettes smoked per day for the past 30 days prior to the assessment) over these time points. From intervention through 12 months post-intervention
Secondary Quit attempts This outcome measures the number of quit attempts in the past 30 days prior to the assessment over these time points. 6 and 12 months post-intervention
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