Text messages plus small incentives to help pregnant women quit smoking

Preliminary Studies on Implementation of Smoking Cessation Interventions for Low-Income Women

Not applicable Interventional University of Kansas Medical Center · NCT07420621

This project will test whether supportive text messages plus small financial incentives help pregnant women on Medicaid or WIC quit smoking better than text messages alone.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years and up
SexFemale
SponsorUniversity of Kansas Medical Center Academic / other
Locations1 site (Kansas City, Kansas)
Trial IDNCT07420621 on ClinicalTrials.gov

What this trial studies

This interventional study compares supportive text-message coaching combined with contingent financial incentives to a text-message only program for pregnant women who smoke daily. Eligible participants are adults (18+) enrolled in or applying for WIC or Medicaid, under 30 weeks' gestation, English-speaking, and able to receive texts on a mobile phone. The primary aims are to determine preliminary feasibility and acceptability of the combined approach and to verify smoking abstinence with methods designed to reduce in-person visits. The long-term goal is to create a scalable, low-burden intervention to reduce tobacco use and improve maternal and birth outcomes among low-income pregnant women.

Who should consider this trial

Good fit: Pregnant women aged 18 or older who smoke daily, are enrolled in or applying to WIC or Medicaid, are under 30 weeks' gestation, can read English, and have a mobile phone that receives texts are ideal candidates.

Not a fit: Women who are not at all interested in quitting, who smoked fewer than 24 days in the past month, who are beyond 30 weeks' gestation, who cannot read English, or who lack a mobile phone are unlikely to benefit from this intervention.

Why it matters

Potential benefit: If successful, the program could increase quit rates among low-income pregnant smokers and reduce harm to both mothers and infants using a scalable, low-cost approach.

How similar studies have performed: Prior randomized trials of financial incentives for smoking cessation in pregnancy have produced large effects, but most required in-person verification and combining incentives with text-message delivery is less tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pregnant women aged: 18+
* Enrolled in the Special Supplemental Nutrition Program for women, Infants, and Children (WIC) or Medicaid (or applied/applying)
* Self-reported current daily smokers
* Able to communicate in English
* Access to a mobile phone capable of receiving text messages

Exclusion Criteria:

* Not at all interested in quitting
* Smoke less than 24 days in the past month
* Greater than 30 weeks gestation

Where this trial is running

Kansas City, Kansas

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Smoking CessationPregnancyMaternal Health
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.