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Study to reveal how fat and periods impact blood sugar in type 1 diabetes

NCT ID NCT07278063

Knowledge-focused Sponsor: Instituto de Investigacion Sanitaria La Fe 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looks at how the amount of fat in a meal and a woman's menstrual cycle affect blood sugar after eating in people with type 1 diabetes. Fifty adults (25 women, 25 men) will eat standardized low-fat and high-fat meals while wearing continuous glucose monitors. The goal is to gather data that could lead to more personalized insulin dosing, especially for women.

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

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

About 50 people

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

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

Apr 2028

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

Anyone

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: * Patients with a confirmed diagnosis of type 1 diabetes mellitus for more than 2 years, in treatment with AHCL (Advanced Hybrid Closed Loop) system treatment for at least 6 months. * Both sexes. * Metabolic control with HbA1c \<8%. * BMI between 18.5 and 29.99 (normal weight to overweight). * For women: regular menstrual cycles (21-35 days in length with variation between cycles of \<4 days) and no use of hormonal contraceptive treatment. Exclusion Criteria: * Diagnosis of diabetic gastroparesis. * Presence of hypogonadism, anovulation, hyperandrogenism, hyperprolactinemia, pregnancy, or decompensated chronic diseases. * Use of oral medications that alter glucose metabolism.

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Conditions

The condition(s) this trial relates to.

Insulin Resistance type 1 diabetes mellitus

As listed by the trial registrant

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

Dietary fat Glycemic variability Menstrual cycle Postprandial glucose Sex characteristics Type 1 diabetes mellitus

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Hospital la Fe

    Valencia, Valencia, 46026, Spain

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