Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT04601870 |
Other study ID # |
2020-0717 |
Secondary ID |
A534253SMPH/MEDI |
Status |
Completed |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
February 19, 2021 |
Est. completion date |
June 17, 2022 |
Study information
Verified date |
December 2022 |
Source |
University of Wisconsin, Madison |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
This study is being done to see if financial incentives increase the rate at which smokers
engage in cessation treatment. A total of 540 participants will be enrolled by invitation
from 6 primary care clinics of the participating healthcare system. Participants will be in
the study for approximately 28 weeks.
Description:
In this randomized controlled trial, each patient of participating Group Health Cooperative
of South Central Wisconsin (GHC-SCW) primary care clinics who is listed in the Cigarette User
Registry receiving standard telephone contact from their GHC-SCW Tobacco Cessation Outreach
Specialist (TCOS) to discuss tobacco use treatment options will be reminded of GHC-SCW's
commitment to helping them improve their health, advised to quit smoking, offered support to
quit smoking, recruited, screened, consented, and randomized over the phone to one of three
conditions of financial engagement incentives. Smokers unwilling to participate in the
incentivized treatment program will be offered entry into the existing GHC-SCW standard
smoking cessation program. Participants in the research study will also receive smoking
treatment via the existing GHC-SCW standard smoking cessation program. Participants in the
research study will be told that they may receive a treatment engagement incentive, with the
amount consistent with their randomized incentive condition; receipt of their assigned
incentive amount is dependent upon their setting a quit date and completing two smoking
cessation treatment counseling contacts. The smoking cessation treatment includes medication
and 3 quit smoking counseling calls scheduled to occur after the recruitment contact call,
which is the standard smoking cessation program available to all GHC-SCW patients. This
program entails a brief counseling call a week (typically 5-7 days) pre-quit i.e., before the
patient's target quit date (TQD), approximately 5-7 days following the TQD (Week 1), and
about one month following the TQD (Week 4).
Research participants will be asked to complete brief (3 to 5 minute) assessments during each
standard care smoking treatment counseling call by GHC-SCW, plus 15-25 minute research study
phone interviews 3- and 6-months post-TQD for study purposes. Those claiming abstinence at
the 6-month post-TQD phone interview will be asked to return to their primary care clinic to
complete breath, urine, and/or saliva testing to verify abstinence from combustible tobacco.
This will entail providing breath samples for carbon monoxide testing and/or a urine or
saliva sample for immediate cotinine testing (no samples will be stored). Participants may
also be asked to collect a saliva sample at home and return it in the mail if they do not
attend a biochemical verification visit.
Primary Aims:
- To determine the relations between treatment engagement financial incentive amounts
offered and likelihood of patient engagement in smoking cessation treatment.
- Primary outcome measure: Patient engagement in smoking cessation treatment (defined
as setting a TQD and completing two phone counseling calls).
Exploratory Aims
- Conduct exploratory analyses on the effects of the different incentive engagement
amounts on biochemically confirmed point-prevalence abstinence 6 months post-quit-date,
and determine whether incentive condition affects abstinence via effects on smoking
treatment engagement (i.e., whether smoking treatment engagement mediates the relations
between different engagement incentive conditions and 6-month smoking abstinence).
- To determine the incremental cost-effectiveness of the different financial engagement
incentive amounts with regard to total program costs vs. usual care, net monetary
benefit (NMB), cost per quit, and incremental cost-effectiveness ratios (ICERs), with
the last determined with regard to cost of additional smoker recruited and each
additional individual who quits smoking.
- To determine the representativeness of smoking treatment reach and smoking abstinence
outcomes generated by the various engagement incentive amounts with regard to different
groups of smokers: e.g., those low in socio-economic status, priority populations,
different racial and ethnic groups.