NCT03240874

Brief Summary

Diabetes during pregnancy is a challenging clinical situation requiring substantial patient engagement. The investigators have developed a novel early-phase tool, called SweetMama, that incorporates educational, motivational and supportive elements to positively impact maternal health behaviors. This phase of work involves develop an optimized version of SweetMama via a 2-step sequential process of in-depth usability and feasibility testing. First the investigators will conduct focus groups and individual usability testing followed by refinement of SweetMama based on participant input. Next, the investigators will conduct feasibility testing via a pilot randomized trial to determine acceptability, feasibility, and pilot procedures for a fully powered larger trial.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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 1, 2017

Completed
1 day until next milestone

Study Start

First participant enrolled

August 2, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 7, 2017

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 9, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 9, 2021

Completed
1.9 years until next milestone

Results Posted

Study results publicly available

March 15, 2023

Completed
Last Updated

August 5, 2025

Status Verified

July 1, 2025

Enrollment Period

3.7 years

First QC Date

August 1, 2017

Results QC Date

August 14, 2022

Last Update Submit

July 18, 2025

Conditions

Keywords

Gestational DiabetesDiabetes Type 2 in Pregnancy

Outcome Measures

Primary Outcomes (2)

  • Number of Participants Identifying Themes on SweetMama Features

    Participants completed qualitative group interviews to yield information about SweetMama features and participant preferences after use in the usability laboratory. The identified themes are outlined, and the criteria used to determine the outcome measure is the number of participants who endorsed each theme related to SweetMama features.

    60-90 minutes

  • Number of Participants Who Used the SweetMama Application

    Feasibility will be assessed as both ability to recruit and retain participants and as a percentage of active SweetMama use. Feasibility targets for study retention will be set at 80% retention; the feasibility target for SweetMama adoption will be 80% active use (at least weekly interaction with SweetMama content).

    After 8 weeks postpartum (approximately 18-38 weeks of enrollment)

Secondary Outcomes (6)

  • Usage Time of SweetMama Application

    After 2 weeks of enrollment (individual usability phase) and after 8 weeks postpartum (feasibility trial; approximately 18-38 weeks of enrollment)

  • Usability Testing of SweetMama Application With the System Usability Scale Survey

    After 2 weeks of enrollment (individual usability phase) and after 8 weeks postpartum (feasibility trial; approximately 18-38 weeks of enrollment)

  • Usability Testing of SweetMama Application With the Useful, Satisfaction and Ease of Use Questionnaire

    After 2 weeks of enrollment (individual usability phase) and after 8 weeks postpartum (feasibility trial; approximately 18-38 weeks of enrollment))

  • Diabetes Self-efficacy

    After 8 weeks postpartum (approximately 18-38 weeks of enrollment)

  • Patient Activation

    After 8 weeks postpartum (approximately 18-38 weeks of enrollment)

  • +1 more secondary outcomes

Other Outcomes (5)

  • Clinical Outcomes of Pregnancy - Percentage of Patients With Hypertensive Disorders of Pregnancy

    After delivery (approximately 10-30 weeks of enrollment)

  • Number of Cesarean Deliveries

    After delivery (approximately 10-30 weeks of enrollment)

  • Clinical Outcomes of Pregnancy - Neonatal Birthweight

    After delivery (approximately 10-30 weeks of enrollment)

  • +2 more other outcomes

Study Arms (4)

Usability - Focus Group

EXPERIMENTAL

Mobile Application Usability Testing: SweetMama Focus Groups Focus groups: Women with a confirmed intrauterine pregnancy or postpartum until 12 weeks after delivery with gestational diabetes mellitus or type 2 diabetes mellitus will be recruited to undergo a single 1-hour focus group.

Behavioral: SweetMama Focus Groups

Usability - Individual Testing

EXPERIMENTAL

Mobile Application Usability Testing: SweetMama Individual Testing Individual testing: Women with a confirmed intrauterine pregnancy (any gestational age) or who are up to 4 weeks postpartum, with gestational diabetes mellitus or type 2 diabetes mellitus, will be recruited to use SweetMama for 2 weeks and provide feedback.

Behavioral: SweetMama Individual Testing

Feasibility - Pilot Randomized Trial, SweetMama arm

EXPERIMENTAL

Mobile Application Feasibility Testing: SweetMama Pilot Trial, SweetMama arm Women recruited to the pilot RCT phase will enroll in the study upon initiation of prenatal care for diabetes, which could be early in pregnancy at the time of first prenatal visit, or at a later point if they have transferred care to this site. Women randomized to receive SweetMama care will be oriented to use of SweetMama and will then use the intervention (messages, library, goal setting, and appointment reminders) throughout pregnancy and the first 8 weeks postpartum, at which point they will undergo surveys and interviews.

Behavioral: SweetMama Feasibility Testing - Pilot Randomized Trial

Feasibility - Pilot Randomized Trial, usual care arm

NO INTERVENTION

Mobile Application Feasibility Testing: SweetMama Pilot Trial, usual care arm Women recruited to the pilot RCT phase will enroll in the study upon initiation of prenatal care for diabetes, which could be early in pregnancy at the time of first prenatal visit, or at a later point if they have transferred care to this site. Women randomized to usual care will be undergo entry and exit surveys (at 6-8 weeks postpartum) but will not interact with SweetMama.

Interventions

Focus groups will assess tool functionality, design, interpretability, and acceptability (initial reaction, attitude, and receptiveness) of SweetMama via qualitative interviewing. The group format will generate feedback on areas that may not be revealed in a one-on-one interview.

Usability - Focus Group

Women will be oriented to SweetMama use on their own Android- or Apple-based phones. The goals of this phase are to collect data from diverse users that will (1) confirm that the mobile apps are functioning (not crashing) across a wide range of devices and operating systems, (2) provide basic information about app usage and user satisfaction (3) inform the development of future iterations by analyzing participant characteristics and use, and (4) collect quality assurance data that will allow the research team to refine the applications. Women will use SweetMama for 2 weeks, engage in periodic "check-ins" with the research assistant, and participate in a semi-structured interview upon completion of SweetMama usage.

Usability - Individual Testing

Women will be oriented to SweetMama use on their own Android- or Apple-based phones. The goals of this phase are to collect data from diverse users that will determine acceptability, feasibility, and pilot procedures in anticipation of a fully powered randomized controlled trial. Women will use SweetMama from enrollment (early pregnancy) to up to 8 weeks postpartum, engage in periodic "check-ins" with the research assistant, and participate in surveys and a semi-structured interview upon completion of SweetMama usage.

Feasibility - Pilot Randomized Trial, SweetMama arm

Eligibility Criteria

Age18 Years - 50 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Age 18 and older
  • Gestational diabetes mellitus or type 2 diabetes mellitus
  • English-speaking
  • Gestational age
  • Focus groups: Confirmed intrauterine pregnancy at least 8 weeks' gestational age or postpartum until 12 weeks after delivery
  • Individual testing: Confirmed intrauterine pregnancy prior to 30 weeks' gestational age
  • Pilot trial: Confirmed intrauterine pregnancy prior to 30 weeks' gestational age
  • Low income, defined as use of publicly-supported insurance for prenatal care or household income \<200% of poverty line for family size
  • Access to a mobile smartphone ( for longitudinal testing phase)

You may not qualify if:

  • Non-viable pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Northwestern Memorial Hospital

Chicago, Illinois, 60611, United States

Location

Related Publications (8)

  • Gomez H, DiTosto JD, Niznik CM, Yee LM. Understanding Food Security as a Social Determinant of Diabetes-Related Health during Pregnancy. Am J Perinatol. 2023 Jun;40(8):825-832. doi: 10.1055/s-0041-1740194. Epub 2021 Nov 28.

    PMID: 34839467BACKGROUND
  • Leziak K, Birch E, Jackson J, Strohbach A, Niznik C, Yee LM. Identifying Mobile Health Technology Experiences and Preferences of Low-Income Pregnant Women with Diabetes. J Diabetes Sci Technol. 2021 Sep;15(5):1018-1026. doi: 10.1177/1932296821993175. Epub 2021 Feb 19.

  • Jackson J, Leziak K, Niznik CM, Yee LM. Health Care Providers' Utilization of and Perspectives on Mobile Health Technology for Diabetes and Pregnancy Support. Diabetes Spectr. 2021 Aug;34(3):257-267. doi: 10.2337/ds20-0040. Epub 2021 Mar 9.

  • Yee LM, Leziak K, Jackson J, Strohbach A, Saber R, Niznik CM, Simon MA. Patient and Provider Perspectives on a Novel Mobile Health Intervention for Low-Income Pregnant Women With Gestational or Type 2 Diabetes Mellitus. J Diabetes Sci Technol. 2021 Sep;15(5):1121-1133. doi: 10.1177/1932296820937347. Epub 2020 Jul 5.

  • Steinberg JR, Yeh C, Jackson J, Saber R, Niznik CM, Leziak K, Yee LM. Optimizing Engagement in an mHealth Intervention for Diabetes Support During Pregnancy: the Role of Baseline Patient Health and Behavioral Characteristics. J Diabetes Sci Technol. 2022 Nov;16(6):1466-1472. doi: 10.1177/19322968211035441. Epub 2021 Aug 22.

  • Yee LM, Leziak K, Jackson J, Niznik CM, Simon MA. Health Care Providers' Perspectives on Barriers and Facilitators to Care for Low-Income Pregnant Women With Diabetes. Diabetes Spectr. 2020 May;33(2):190-200. doi: 10.2337/ds19-0044.

  • Birch EM, Leziak K, Jackson J, Dahl E, Niznik CM, Yee LM. Content Quality of YouTube Videos About Gestational Diabetes: Systematic Evaluation. JMIR Diabetes. 2022 Apr 7;7(2):e30156. doi: 10.2196/30156.

  • Roytman MV, Lu L, Soyemi E, Leziak K, Niznik CM, Yee LM. Exploring Psychosocial Burdens of Diabetes in Pregnancy and the Feasibility of Technology-Based Support: Qualitative Study. JMIR Diabetes. 2025 Apr 21;10:e53854. doi: 10.2196/53854.

MeSH Terms

Conditions

Diabetes, Gestational

Condition Hierarchy (Ancestors)

Pregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesDiabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Results Point of Contact

Title
Lynn Yee, MD, MPH
Organization
Northwestern University

Study Officials

  • Lynn M Yee, MD, MPH

    Assistant Professor, Maternal and Fetal Medicine

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Two phases of study: 1. Usability testing - focus groups followed by individual usability testing (single arm) 2. Feasibility testing - pilot randomized controlled trial of SweetMama care versus usual care
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 1, 2017

First Posted

August 7, 2017

Study Start

August 2, 2017

Primary Completion

April 9, 2021

Study Completion

April 9, 2021

Last Updated

August 5, 2025

Results First Posted

March 15, 2023

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations