Testing Financial Incentive Interventions in Dyadic-Smoker Couples

NCT04832360 | Completed Results

• 1 other identifier: RCA241570A
• Study Type: interventional
• Target: 190
• Locations: 1 country
• Sites: 1

Brief Summary

The proposed study investigates the feasibility and efficacy of FITs in dual-smoker couples \[DSCs\]. The core design is a three-group mixed repeated measures design, in which participants are randomized into one of three conditions (control \[CTL\], dyadic target \[DT\] FIT or single target \[ST\] FIT) and tracked across 3 months. The FIT involves monetary incentives for online psychoeducation completion and smoking abstinence at follow-up.

Conditions

Nicotine Dependence

Outcome Measures

Primary Outcomes (3)

• Smoking Abstinence

  Percentage of targets who have quit smoking by the follow-up study cessation verified biochemically

  Follow-up study session 3 months post-baseline session

• Feasibility of Financial Incentives Treatment in Dyadic-Smoker Couples

  Feasibility of financial incentives treatment in dyadic-smoker couples was assessed by number of individuals retained in study. Retention was separated by condition.

  Through study recruitment and study completion, an average of five months

• Tolerability of Financial Incentives Treatment in Dyadic-Smoker Couples

  Participant subjective ratings of the benefits and costs of participating in the study. Tolerability was defined using eight items assessing the accessibility, benefits, and costs of the study scored on a 1 (strongly disagree) to 7 (strongly agree) scale. Tolerability scores were separated by target and partner and reported by condition.

  Through study recruitment and study completion, an average of five months

Study Arms (3)

Control (CTL)

EXPERIMENTAL

Participants do not receive financial incentive intervention

Behavioral: Financial Incentives

Single Target (ST)

EXPERIMENTAL

One member of each dyadic-smoking couple will receive financial incentive intervention

Behavioral: Financial Incentives

Dyadic Target (DT)

EXPERIMENTAL

Both members of each dyadic-smoking couple will receive financial incentive intervention

Behavioral: Financial Incentives

Interventions

Financial Incentives BEHAVIORAL

Financial incentives may be offered to participants based on their behavioral outcomes (smoking cessation and participation in online psychoeducation about smoking)

Control (CTL); Dyadic Target (DT); Single Target (ST)

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• both members:
• age of 18+
• smoke 5+ combustible cigarettes/day
• may not have participated in pilot study

You may not qualify if:

• \< 8th grade capacity to read/write in English
• hospitalization in recent 6 months
• current drug or alcohol use disorder
• psychotic symptoms

Sponsors & Collaborators

• University of Georgia: lead

Study Sites (1)

University of Georgia

Athens, Georgia, 30602, United States

Location

Related Publications (1)

• Andrade FC, Shen Y, MacKillop JM, Beach SRH, vanDellen MR. Dyadic patterns of abstinence from smoking in dual-smoking couples enrolled in a pilot randomized clinical trial. Health Psychol. 2026 Jan 29:10.1037/hea0001573. doi: 10.1037/hea0001573. Online ahead of print.

  PMID: 41609650 DERIVED

MeSH Terms

Conditions

Tobacco Use Disorder

Condition Hierarchy (Ancestors)

Substance-Related Disorders; Chemically-Induced Disorders; Mental Disorders

Results Point of Contact

• Title: Dr. Michelle vanDellen
• Organization: University of Georgia

mvd@uga.edu

706-542-8991

Study Officials

• Michelle R vanDellen, PhD

  University of Georgia

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: No
• Restrictive Agreement: No

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor, Principal Investigator

Study Record Dates

• First Submitted: January 8, 2021
• First Posted: April 5, 2021
• Study Start: January 15, 2021
• Primary Completion: August 1, 2022
• Study Completion: August 1, 2022
• Last Updated: January 24, 2025
• Results First Posted: January 24, 2025

Record last verified: 2025-01

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
• Time Frame: Undecided
• Access Criteria: Researchers must make request for data and materials to the PI

Locations

US (1)