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SmartMom: Teaching by Texting to Promote Health Behaviours in Pregnancy

Teaching by Texting to Promote Health Behaviours in Pregnancy

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05793944
Enrollment
3078
Registered
2023-03-31
Start date
2023-11-10
Completion date
2027-06-01
Last updated
2026-05-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pregnancy

Keywords

prenatal education, perinatal outcomes, text messaging, mobile health, mental health, health behaviour

Brief summary

The goal of this randomized clinical trial is to evaluate the effectiveness of SmartMom, a text messaging-based mobile health program for prenatal education. The main questions are to determine if healthy pregnant people receiving SmartMom messages that promote health behaviours in pregnancy versus messages that don't provoke behaviour change have improvement in: 1. knowledge about healthy pregnancy and birth 2. standardized measures of depression, anxiety, and fear of childbirth 3. adoption of positive health behaviours in pregnancy 4. maternal, fetal, and newborn outcomes Participants in the intervention group will receive three evidence-based text messages per week, plus optional supplemental messages on topics relevant to them, throughout pregnancy. The control group will receive general interest messages on pregnancy-related topics that are not promoting behaviour change.

Interventions

BEHAVIORALSmartMom text messaging

SmartMom is a mobile health program delivered via text messaging that guides participants through each week of pregnancy. Participants receive three messages per week with links to content focused on improving knowledge, providing information about prenatal assessments and screening, and encouraging the adoption of behaviours to support healthy pregnancy and physiologic birth. Messages are consistent with current professional guidelines and peer reviewed prenatal education curricula. SmartMom provides optional supplemental streams for individuals who wish to have additional messages addressing topics such as reducing use of tobacco, alcohol or illicit drugs, depression, obesity, and maternal age over 35.

Control arm participants will receive weekly text messages with accurate, general-interest information about pregnancy and about progress of the trial. Content is not geared to decision-making during pregnancy that may affect health outcomes.

Sponsors

University of British Columbia
Lead SponsorOTHER
Canadian Institutes of Health Research (CIHR)
CollaboratorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
15 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* pregnant person * at 15 weeks gestation or earlier * singleton pregnancy * can read and understand English at grade 8 level and comfortable completing online surveys * live in Canada (excluding British Columbia where SmartMom has been piloted)

Exclusion criteria

* health conditions existing prior to pregnancy that require individualized care (e.g. hypertension, cardiac disease, diabetes) * previously had a baby with the SmartMom program

Design outcomes

Primary

MeasureTime frameDescription
Change in weight during pregnancyEnrollment, 38 weeks gestationRate of pregnancy weight gain in a range appropriate for pre-pregnancy BMI. These include self-reported data as well as data from provincial prenatal registries and the Canadian Hospital Discharge Database linked via personal health number, provided as part of the consenting procedure.
Attendance at prenatal care visits through pregnancy38 weeks gestationRates of attendance at prenatal care appointments in adherence to Canadian guidelines. These include self-reported data as well as data from provincial prenatal registries and the Canadian Hospital Discharge Database linked via personal health number, provided as part of the consenting procedure.

Secondary

MeasureTime frameDescription
Changes in health knowledge through pregnancyEnrollment, 38 weeks gestationChanges in health knowledge as measured by a 10-item knowledge test. Minimum score = 0, Maximum score = 10. Higher score indicates more knowledge i.e. more positive outcome.
Health literacy at end of pregnancy38 weeks gestationHealth literacy as measured by self-report of i) information-seeking from local health and social services resources; ii) awareness of their choices regarding serum genetic screening; iii) awareness of their choices to have (yes/no) serum glucose screening.
Changes in fear of childbirth through pregnancyEnrollment, 38 weeks gestational ageChanges in fear of childbirth as measured by The Childbirth Fear Scale, an 11-item, self-reported measure. Minimum score = 6, Maximum score = 66. Lower score means less fear, i.e. a more positive outcome.
Changes in depression through pregnancyEnrollment, 38 weeks gestational ageChanges in depression as measured by the Edinburgh Postnatal Depression Scale. This is a 10-item, self-report screening tool for postnatal depression that is also valid for use during pregnancy. Minimum score = 0. zero, Maximum score = 30. Lower score means less depression, i.e. a more positive outcome.
Changes in anxiety through pregnancyEnrollment, 38 weeks gestational ageChanges in anxiety as measured by the standardized 33-item Pregnancy Specific Anxiety Tool (PSAT). Minimum score = 6, Maximum score = 24. Lower score means less anxiety, i.e. a more positive outcome.
Changes in use of tobacco, vaping, alcohol, or cannabis through pregnancy among users.Enrollment, 38 weeks gestational ageAmong participants indicating that they are users of tobacco, vaping, alcohol, and/or cannabis at enrollment, change of use at the end of pregnancy will be measured by self-report. Report: proportion of users that stopped using per trial arm. Among users continuing to use: mean change in number of daily cigarettes, episodes of vaping, drinks per week, cannabis products per day or other specified use of recreational or prescription drugs used per day.
Rates of planned vaginal birth after cesarean38 weeks gestationProportion of participants choosing to plan vaginal birth (VBAC) after a previous cesarean birth, among those deemed eligible by their caregivers. These include self-reported data as well as data from provincial prenatal registries and the Canadian Hospital Discharge Database linked via personal health number, provided as part of the consenting procedure.
Rates of exclusive breastfeeding at hospital discharge1 month post birthThese include self-reported data as well as data from provincial prenatal registries and the Canadian Hospital Discharge Database linked via personal health number, provided as part of the consenting procedure.
Rates of adverse pregnancy outcomes as measured by gestational diabetes, stillbirth, preterm birth (<37 weeks gestation) and small for gestational age (SGA) status at birth.1 month post birthThese include self-reported data as well as data from provincial prenatal registries and the Canadian Hospital Discharge Database linked via personal health number, provided as part of the consenting procedure.
Incremental costs per incidence of suboptimal weight gain and inadequate prenatal care avoided.Throughout pregnancy (up to 42 weeks) and birth, including hospital admission in which birth took place (up to 7 days).Incremental costs per incidence of suboptimal weight gain and inadequate prenatal care avoided for the intervention group when compared to control group as an incremental cost-effectiveness ratio.

Countries

Canada

Contacts

CONTACTSara Leckie, MSc
sara.leckie@ubc.ca604-875-2345
CONTACTPatti Janssen, PhD
patti.janssen@ubc.ca604-313-8243
PRINCIPAL_INVESTIGATORPatti Janssen, PhD

University of British Columbia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 5, 2026