Before or after? study tests best time for insulin in type 1 diabetes

NCT ID NCT02546401

Completed Disease control Sponsor: University Hospital, Brest Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether taking a fast-acting insulin (Insulin Aspart) before or after meals makes a difference in blood sugar control for people with type 1 diabetes who use an insulin pump. Twenty-two adults participated, and their blood sugar was tracked continuously for 14 days. The goal was to see if injecting after meals, which many patients already do, is a safe and effective option.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Insulin Aspart
What this could lead to: If successful, this could clarify whether taking insulin after meals is as effective as before meals, giving patients more flexibility in managing their diabetes.
What could go wrong: This is a small, completed trial with only 22 participants, so results may not apply to everyone. It does not test a new treatment, only timing of an existing one.

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Conditions

The condition(s) this trial relates to.

type 1 diabetes mellitus

As listed by the trial registrant

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

DIABETES TYPE 1

Contacts and locations

Locations

CHRU Brest

Brest, 29200, France

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