NCT04881630

Brief Summary

The purpose of the proposed project is to evaluate an automated mobile phone-based CM approach that will allow socioeconomically disadvantaged individuals to remotely benefit from financial incentives for smoking cessation. The investigators have previously combined technologies including 1) portable carbon monoxide monitors that connect with mobile phones to remotely verify smoking abstinence, 2) facial recognition software to confirm participant identity during breath sample submissions, and 3) remote delivery of incentives automatically triggered by biochemical confirmation of self-reported abstinence. This automated CM approach will be evaluated in a randomized controlled trial that includes 532 socioeconomically disadvantaged males and females seeking smoking cessation treatment. Participants will be randomly assigned to either telephone counseling and nicotine replacement therapy (standard care \[SC\]) or SC plus a mobile financial incentives intervention (CM) for biochemically-confirmed abstinence. Participants will be followed for 26 weeks after a scheduled quit attempt. Biochemically-verified 7-day point prevalence abstinence at 26 weeks post-quit will be the primary outcome variable. Cost-effectiveness will be evaluated to inform policy-related decisions. Potential mobile CM treatment mechanisms, including self-efficacy, motivation, and treatment engagement, will be explored to optimize future versions of the intervention.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
532

participants targeted

Target at P75+ for not_applicable

Timeline
3mo left

Started Nov 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress92%
Nov 2022Sep 2026

First Submitted

Initial submission to the registry

March 29, 2021

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 11, 2021

Completed
1.5 years until next milestone

Study Start

First participant enrolled

November 8, 2022

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2025

Completed
1.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2026

Expected
Last Updated

March 5, 2026

Status Verified

March 1, 2026

Enrollment Period

2.2 years

First QC Date

March 29, 2021

Last Update Submit

March 3, 2026

Conditions

Keywords

Smoking CessationFinancial IncentivesSocioeconomic StatusContingency ManagementMobile Health

Outcome Measures

Primary Outcomes (1)

  • Carbon monoxide-verified smoking abstinence

    The primary outcome measure is carbon monoxide-verified 7-day point prevalence abstinence at 26 weeks post-quit.

    26 weeks post-quit-date

Secondary Outcomes (5)

  • Cost-effectiveness

    26 weeks post-quit-date

  • Carbon monoxide-verified smoking abstinence

    12 week post-quit-date

  • Carbon monoxide-verified smoking abstinence

    8 weeks post-quit-date

  • Carbon monoxide-verified smoking abstinence

    4 weeks post-quit-date

  • Carbon monoxide-verified smoking abstinence

    26 weeks post-quit-date

Study Arms (2)

Standard Care (SC)

ACTIVE COMPARATOR

Participants randomized to Standard Care will be offered weekly smoking cessation counseling and pharmacotherapy.

Other: Standard Care (SC)

Contingency Management (CM)

EXPERIMENTAL

CM participants will receive standard care in addition to small financial incentives for biochemically-verified abstinence.

Behavioral: Automated Mobile Contingency Management (CM)Other: Standard Care (SC)

Interventions

Financial incentives contingent upon smoking abstinence

Contingency Management (CM)

Tobacco cessation telephone counseling and combination nicotine replacement therapy (nicotine patches + nicotine gum/lozenges)

Contingency Management (CM)Standard Care (SC)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • report an annual household income of \<200% of the federal poverty threshold (i.e., low-income)
  • earn a score ≥4 on the REALM indicating \>6th grade English literacy level (i.e., a 7th grade reading level is necessary to complete assessments)
  • are willing to quit smoking 7-14 days after enrollment
  • are ≥ 18 years of age
  • currently smoke ≥ 5 cigarettes per day
  • have a CO level of \>6 ppm
  • are willing to abstain from smoking cannabis and other combustible tobacco products (they raise CO levels and mask cigarette abstinence)
  • have no contraindications for NRT
  • Provide a copy/photo of driver's license or other documentation as proof of identity and U.S. residence

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

TSET Health Promotion Research Center

Oklahoma City, Oklahoma, 73104, United States

Location

Related Publications (1)

  • Kendzor DE, Businelle MS, Vidrine DJ, Frank-Pearce SG, Shih YT, Dallery J, Alexander AC, Boozary LK, Waring JJC, Ehlke SJ. Mobile contingency management for smoking cessation among socioeconomically disadvantaged adults: Protocol for a randomized trial. Contemp Clin Trials. 2022 Mar;114:106701. doi: 10.1016/j.cct.2022.106701. Epub 2022 Jan 31.

    PMID: 35114409BACKGROUND

MeSH Terms

Conditions

Smoking Cessation

Interventions

Standard of Care

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Intervention Hierarchy (Ancestors)

Quality Indicators, Health CareQuality of Health CareHealth Services AdministrationHealth Care Quality, Access, and Evaluation

Study Officials

  • Darla E. Kendzor, PhD

    University of Oklahoma

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 29, 2021

First Posted

May 11, 2021

Study Start

November 8, 2022

Primary Completion

January 31, 2025

Study Completion (Estimated)

September 1, 2026

Last Updated

March 5, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will share

De-identified data will be made available to investigators upon request, after publication of the primary study findings, and with a data-sharing agreement that specifies the investigator(s) will 1) use the data only for research purposes and not to identify any individual participant, 2) store the data on a secure device (e.g., encrypted, password-protected), and 3) destroy or return the data after completion of the analyses.

Shared Documents
STUDY PROTOCOL, ICF
Time Frame
De-identified data will be made available to investigators upon request after publication of the primary study findings.
Access Criteria
Data sharing agreement

Locations