NCT04572178

Brief Summary

Smoking during pregnancy has harmful effects on both mother and unborn child. Studies have shown that small rewards can help smokers to quit. In our current study, we ask how such rewards are most effective in supporting smoking cessation in pregnancy.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
15

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 15, 2020

Completed
10 days until next milestone

First Submitted

Initial submission to the registry

September 25, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 1, 2020

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2024

Completed
Last Updated

November 30, 2023

Status Verified

November 1, 2023

Enrollment Period

4.2 years

First QC Date

September 25, 2020

Last Update Submit

November 29, 2023

Conditions

Keywords

Smoking cessationPregnancyIncentivesCounselingCash payment

Outcome Measures

Primary Outcomes (1)

  • Drop-out rate

    Measure: Analyses of drop-out rate (%)

    Baseline up to pregnancy week 36

Secondary Outcomes (3)

  • Differences in number of cigarettes per day by self report

    Baseline up to pregnancy week 36

  • Attempts to stop smoking by self report

    Baseline up to pregnancy week 36

  • Attempts to stop smoking by carbon monoxide measurement

    Baseline up to pregnancy week 36

Study Arms (1)

Cash payment and brief behavioral counseling

EXPERIMENTAL

The intervention consists of in person counseling and cash payment. The participants receive 25 Euro per week if they have succeeded in quitting smoking. Quitting smoking is evaluated by carbon monoxide measurements twice a week.

Behavioral: Cash payment and brief behavioral counseling

Interventions

The intervention consists of: (i) in person brief behavioral counseling, (ii) the evaluation of the smoking status using breath carbon monoxide, and (iii) cash payment of 25 Euro if the reading does not exceed a carbon monoxide value "3 ppm" ( ppm = parts per million) on two consecutive measurements per week. The intervention starts at the earliest in pregnancy week 15 and lasts until the delivery. If they relapse, the reward is not paid. However, in the following week they have the opportunity to quit smoking and being rewarded again.

Cash payment and brief behavioral counseling

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Gender Eligibility Detailspregnant women
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Current smoking, at least one cigarette per day
  • Pregnancy, between pregnancy week 15 and 23

You may not qualify if:

  • Inadequate language skills
  • Cognitive impairment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Institute for Comunity Medicine, Department Prevention Research and Social Medicine

Greifswald, 17475, Germany

RECRUITING

MeSH Terms

Conditions

Smoking Cessation

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Study Officials

  • Sabina Ulbricht, Prof. Dr.

    University Medicine Greifswald, Dep. Prevention Research and Social Medicine

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

September 25, 2020

First Posted

October 1, 2020

Study Start

September 15, 2020

Primary Completion

November 30, 2024

Study Completion

November 30, 2024

Last Updated

November 30, 2023

Record last verified: 2023-11

Locations