NCT05019170

Brief Summary

Cigarette smoking during pregnancy increases risk for catastrophic pregnancy complications, growth retardation, other adverse infant health problems, and later-in-life chronic conditions. One group that is particularly at risk for these complications are Alaska Native (AN) women. Prevalence of smoking during pregnancy is disproportionally high among AN women compared to US pregnant women overall (i.e., \~36% and \~13%, respectively) and few smoking-cessation interventions have been evaluated among this population. A substantive barrier to offering evidence-based interventions to AN women is the geographic remoteness of Alaska. The most effective intervention for promoting smoking cessation during pregnancy is financial incentives in which participants earn incentives (e.g., cash) contingent on objective evidence of smoking abstinence. This intervention has been adapted to be delivered entirely through a smartphone meaning that the geographic remoteness of Alaska will not be a barrier with this intervention. Participants submit videos of themselves completing breath and saliva tests, and incentives are then delivered through the application if the tests indicate smoking abstinence. Through a collaboration between the University of Vermont and the Alaska Native Tribal Health Consortium, the goal of this study is to examine the preliminary feasibility and efficacy of this smartphone-based incentives intervention among AN women. Pregnant AN women will be recruited through ads posted on social media. Eligible participants who complete the informed consent process will be randomized to either: Best Practices or Best Practices + Incentives. In the Best Practices condition, participants will receive three brief educational sessions and a referral to the Alaska state quitline. In the Best Practices + Incentives condition, participants will receive the same education sessions and quitline referral, plus financial incentives contingent on the smartphone-based testing of breath and saliva specimens indicating abstinence from recent smoking. Outcomes will include point prevalence smoking abstinence at assessments conducted in late pregnancy and 4-, 8-, 12-, and 24-weeks postpartum, continuous abstinence during antepartum and postpartum, and perceived barriers and facilitators of treatment engagement. Overall, this project has the potential to address disparities in access to efficacious, evidence-based smoking cessation treatments among AN pregnant women.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
5

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Dec 2021

Geographic Reach
1 country

2 active sites

Status
terminated

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

First Submitted

Initial submission to the registry

August 9, 2021

Completed
15 days until next milestone

First Posted

Study publicly available on registry

August 24, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

December 15, 2021

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2023

Completed
Last Updated

December 1, 2023

Status Verified

November 1, 2023

Enrollment Period

1.7 years

First QC Date

August 9, 2021

Last Update Submit

November 27, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Late Pregnancy Quit Rate

    Point prevalence smoking abstinence (defined as a cotinine-negative saliva test AND self-reported no smoking in the past seven days)

    28 weeks gestation through date of delivery

Secondary Outcomes (6)

  • Early Pregnancy Quit Rate

    One month after participant's enrollment date

  • 4-Week Postpartum Quit Rate

    4 weeks following the date that participants deliver their infant

  • 8-Week Postpartum Quit Rate

    8 weeks following the date that participants deliver their infant

  • 12-Week Postpartum Quit Rate

    12 weeks following the date that participants deliver their infant

  • 24-Week Postpartum Quit Rate

    24 weeks following the date that participants deliver their infant

  • +1 more secondary outcomes

Study Arms (2)

Best Practices + Incentives group

EXPERIMENTAL

Participants assigned to this condition will receive the best practices treatment plus the financial incentives intervention.

Behavioral: Smartphone-based Financial IncentivesBehavioral: Best Practices

Best Practices

ACTIVE COMPARATOR

Participants assigned to this condition will receive the best practices treatment alone.

Behavioral: Best Practices

Interventions

Financial Incentives - Beginning on the quit date and extending for one week, participants will be required to submit twice daily CO samples. All samples \< 6 ppm will be considered negative and those \> 6 ppm will be considered positive. Participants will earn incentives for breath tests indicating smoking abstinence, and incentive values will increase with each consecutive negative sample. Following the initial quit week, the schedule of monitoring will be reduced, and incentives will be contingent on submitting a negative saliva cotinine test.

Also known as: Contingency Management
Best Practices + Incentives group
Best PracticesBEHAVIORAL

Best Practices- The 2008 Clinical Practice Guidelines for smoking cessation recommends that pregnant smokers be provided with the 5As. Research staff will implement the 5As at assessments that take place during pregnancy.

Best PracticesBest Practices + Incentives group

Eligibility Criteria

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

You may qualify if:

  • ≥ 18 years of age
  • report being smokers at the time they learned of the current pregnancy
  • report smoking in the 7 days prior to completing their preliminary eligibility screening
  • \< 25 weeks pregnant
  • speak English
  • own a smartphone (Android or iOS)
  • self-report as an Alaska Native
  • current smoker as verified by saliva cotinine test

You may not qualify if:

  • current or prior mental or medical condition that may interfere with study participation
  • smoke marijuana more than once each week and not willing to quit (marijuana smoking can inflate breath CO)
  • exposed to unavoidable occupational sources of CO (e.g., car mechanic)
  • report currently receiving opioid maintenance therapy (e.g., methadone, buprenorphine)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Alaska Native Tribal Health Consortium

Anchorage, Alaska, 99508, United States

Location

University of Vermont

Burlington, Vermont, 05401, United States

Location

Related Publications (1)

  • Kurti AN, Tang K, Bolivar HA, Evemy C, Medina N, Skelly J, Nighbor T, Higgins ST. Smartphone-based financial incentives to promote smoking cessation during pregnancy: A pilot study. Prev Med. 2020 Nov;140:106201. doi: 10.1016/j.ypmed.2020.106201. Epub 2020 Jul 9.

    PMID: 32652133BACKGROUND

MeSH Terms

Conditions

SmokingSmoking Cessation

Interventions

Practice Guidelines as Topic

Condition Hierarchy (Ancestors)

BehaviorHealth Behavior

Intervention Hierarchy (Ancestors)

Guidelines as TopicQuality Assurance, Health CareQuality of Health CareHealth Services AdministrationHealth Care Quality, Access, and Evaluation

Study Officials

  • Diann Gaalema, PhD

    University of Vermont

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The investigators are proposing a two-condition, parallel groups, randomized controlled pilot study of a smartphone-based financial incentives intervention for AN pregnant smokers. The experimental group will receive financial incentives (money loaded onto a debit card) contingent on the remote submission of breath carbon monoxide and saliva cotinine tests indicating smoking abstinence in addition to best practices for promoting smoking cessation (Best Practices + Incentives). The control group will receive best practices alone (Best Practices). The use of a best practices group reflects a real-world comparison condition in that all women will receive the treatment that practitioners in the community are instructed to provide (the 5As + quitline referral) thereby enhancing the ecological validity of the study. Additionally, the investigators will minimize between-subject variability in the participant's exposure to these practices by implementing these treatment components themselves.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Psychiatry

Study Record Dates

First Submitted

August 9, 2021

First Posted

August 24, 2021

Study Start

December 15, 2021

Primary Completion

August 31, 2023

Study Completion

August 31, 2023

Last Updated

December 1, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations