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Timing is everything: new study tests best time to start diabetes meds in pregnancy

NCT ID NCT03527537

Disease control Sponsor: Medical College of Wisconsin Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jul 21, 2026 · Updated 2 times

Summary

This study looks at the best time to start medication for gestational diabetes during pregnancy. About 416 pregnant women with the condition are randomly assigned to start medicine when 20% or 40% of their blood sugar readings are too high. The goal is to see which approach leads to fewer health problems for both mother and baby.

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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 416 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2021

Expected to finish

Oct 2026

An estimate. End dates often move.

Lead sponsor

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

18 to 45 years

Sex

Female participants only

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Viable singleton pregnancy * Age \>= 18 years old * Diagnosed with gestational diabetes mellitus * Able to communicate in English Exclusion Criteria: * Pre-gestational diabetes * Significantly abnormal GDM testing, suggestive of the presence of pre-gestational diabetes, either with fasting values \>=126 mg/dL or 2-hour post-prandial levels \>=200 mg/dL * Patients who check blood sugars on average less than 2 times per day after appropriate counseling * Already started pharmacotherapy prior to referral to the study

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Conditions

The condition(s) this trial relates to.

gestational diabetes

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Gestational diabetes

Contacts and locations

Locations

  • Medical College of Wisconsin

    Milwaukee, Wisconsin, 53226, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.