Can a smartphone app and chat group tame gestational diabetes?
NCT ID NCT07009704
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tests whether wearing a continuous glucose monitor that shows real-time blood sugar levels on a smartphone app, plus joining a group chat with other pregnant women, helps keep glucose levels healthy during pregnancy. About 70 pregnant women at risk for gestational diabetes will use the monitor and chat for support. The goal is to see if this approach improves blood sugar control and reduces health risks for mother and baby.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- real-time continuous glucose monitor and mobile-based social support
- What this could lead to
- If it works, this could offer a simple, low-cost way for pregnant women to better control blood sugar and reduce complications from gestational diabetes.
- What could go wrong
- This is a small, early-stage study with only 70 participants, so results may not apply widely. The intervention relies on self-motivation and smartphone use, which may not work for everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 70 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2025
- Expected to finish
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Jul 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 45 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Pregnant (\<20w0d) * At least 18 years to 45 years old * BMI \>25, personal history of GDM, or first-degree family member with type II diabetes * Comfortable conversing in English * Own a smartphone and willing to use the CGM app and Signal * Receiving prenatal care and planning to deliver at Tufts Medicine (Boston) * Signed the consent form * Currently located in the United States Exclusion Criteria: * Current pregnancy a multiple gestation (e.g., twins) * Smoked during this current pregnancy * Active hepatitis or HIV infection * Current pregnancy have any documented fetal congenital anomalies * Current history of heroin, cocaine, crack, LSD, or methamphetamines * Current history of alcohol abuse * Previous gastric bypass * Shift work that alters the sleep/wake periods * Have known rheumatological or chronic inflammatory state (i.e., arthritis, inflammatory bowel disease)? * Chronic illnesses, including diabetes and dialysis, that require regular medication use * Uncontrolled hypothyroidism * Known culture of positive chorioamnionitis? * An adult who is unable to consent (e.g., cognitively impaired adults) * Ward of the state * Unable to read or write English
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Tufts Medical Center
RECRUITINGBoston, Massachusetts, 02111, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Gut microbes in pregnancy and infancy: a window into lifelong health?
- Can a social media platform help manage gestational diabetes?
- Chatbot coach takes aim at diabetes risk after pregnancy
- Can almonds tame overnight blood sugar in pregnancy?
- Could more doula visits ease postpartum depression?