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The Supporting MumS (SMS) study: can we use an automated text message intervention for weight management in women after childbirth?

Effectiveness and cost effectiveness of an automated text message intervention for weight management in postpartum women with overweight or obesity: the Supporting MumS Randomised Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN16299220
Enrollment
888
Registered
2022-02-10
Start date
2022-04-20
Completion date
Unknown
Last updated
2026-03-23

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

Conditions

Overweight and obesity in postpartum women Nutritional, Metabolic, Endocrine

Interventions

Women will be recruited from all four countries in the UK using community based recruitment as well as signposting via routine contact with health professionals. Written informed consent will be obtai

Sponsors

Queen's University Belfast
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 100 Years

Inclusion criteria

Inclusion criteria: 1. Women (as per NICE Postnatal care guideline NG1941, for this trial, the term 'woman' is taken to include people who do not identify as women but are pregnant or have given birth) 2. Aged >18 years old 3. BMI =25 kg/m² 4. Have had a baby within the last two years

Exclusion criteria

Exclusion criteria: Current participant exclusion criteria as of 24/02/204: 1. Baby less than 6 weeks old 2. No access to a mobile phone to receive personal messages 3. Insufficient English to understand short written messages 4. Currently pregnant 5. Recent or planned bariatric surgery 6. Diagnosis of anorexia nervosa or bulimia by a doctor 7. On a specialist diet and receiving dietetic care 8. Taking part in another weight management research study/programme currently, or in the last 3 months Previous participant exclusion criteria: 1. Baby less than 6 weeks old 2. No access to a mobile phone to receive personal messages 3. Insufficient English to understand short written messages 4. Currently pregnant 5. Recent or planned bariatric surgery 6. Eating disorder 7. On a specialist diet and receiving dietetic care 8. Taking part in another weight management research study currently, or in the last 3 months

Design outcomes

Primary

MeasureTime frame
Current primary outcome measure as of 24/02/2024: Between-group difference in mean weight change (kg) measured using calibrated scales from baseline to 12 months Previous primary outcome measure: Weight change from baseline to 12 months (kg), measured using calibrated scales

Secondary

MeasureTime frame
Current secondary outcome measures as of 06/10/2025: 1. Between-group difference in mean weight change (kg) from baseline to 6 months and baseline to 24 months, respectively. 2. Between-group difference in mean waist circumference (cm) measured by a flexible measuring tape at baseline, 6, 12 and 24 months. 3. Between-group difference in mean BMI (kg/m2) measured at baseline, 6, 12 and 24 months. 4. Between-group difference in proportions of women: i) gaining a substantial amount of weight (5 kg) at 12 and 24 months; ii) losing a substantial amount of weight (5 kg) between 12 and 24 months; iii) who have returned to their pre-pregnancy weight at 24 months; iv) who maintained a weight loss between 12 and 24 months. 5. Health behaviours are measured by: Fat and Fibre Barometer; self-report questionnaire on sugar and alcohol intake; International Physical Activity Questionnaire (IPAQ) - Short form; and self-report questionnaire on infant feeding practices (Infant Feeding Survey) measured at baseline, 6, 12 and 24 months 6. Study acceptability is measured by: recruitment; retention; engagement with the two-way text messages during 12 months; self-reported questionnaire on participant satisfaction with SMS messages (at 6 and 12 months) and rating of intervention (at 12 months); and qualitative interviews (at 6 and 12 months), 7. Economic evaluation outcomes are measured by: self-report questionnaire on health service resources use, prescribed and over-the counter medication usage and lifestyle-related costs; the EuroQol 5-dimension (EQ-5D-5L with visual analogue scale) quality of life questionnaire; and the ICEpop Capability Measure for Adults (ICECAP-A) at baseline, 6, 12 and 24 months 8. Moderators of intervention effect are measured by: Edinburgh Postnatal Depression Scale (EPDS); Generalised Anxiety Disorder (GAD-7); Pittsburgh Sleep Quality Index; and self-report questionnaire on confidence and desire for weight loss and maintenance at baseline, 6, 12 and 24 months 9

Countries

England, Northern Ireland, Scotland, United Kingdom, Wales

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Aug 30, 2026