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Type 1 DiabetesAugust 2025Summary reviewed May 2026

What the LENNY Trial Found — Automated Insulin Delivery in Toddlers

LENNY tested the MiniMed 780G automated insulin pump system in 98 children ages 2-6 with type 1 diabetes. Auto mode kept blood sugar in range about 10 percentage points more of the time than manual mode.

What the trial was testing

The LENNY enrolled 101 patients with type 1 diabetes. The study was sponsored by Medtronic MiniMed and tracked outcomes across the full group of patients who matched the trial's eligibility profile.

Researchers followed patients through treatment and into recovery, tracking the outcomes that mattered most for the disease being studied.

What the results showed

10 percentage point gain in time-in-range with auto mode vs. manual.

The Lancet Diabetes & Endocrinology · 2025 · NCT05574062

These findings — that more time-in-range on auto mode vs. manual mode in children ages 2-6 — were published in the The Lancet Diabetes & Endocrinology and represent the headline result of the study.

Researchers tracked outcomes across 101 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.

What this means for patients

For patients with type 1 diabetes, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.

What you can do now

The MiniMed 780G system is FDA-approved and available now for children 2 and older with type 1 diabetes. Several other automated insulin delivery systems are also approved. Ask your pediatric endocrinologist which fits your child best.

Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.

Open type 1 diabetes trials

RecruitingSafety & dosing

Bioavailability, Biopotency and Food Effect Study of SCD0503 Compared to Subcutaneous Regular Human Insulin

Reason for the study The participants have been diagnosed with type 1 diabetes and are being treated with standard insulin therapy. The sponsor of the study is developing a new insulin-based medicine that can be taken by mouth (orally). For this reason, the investigational product named SCD0503 is to be tested in the study. The sponsor wants to investigate the course of blood concentrations and the blood sugar-lowering effect of the investigational product and to find out whether SCD0503 is safe. Investigational product tested in this study The investigational product tested, SCD0503, is still under clinical evaluation and has not yet been approved for your treatment. The active ingredient is regular human insulin, which has been used for many years in approved medicines for the treatment of diabetes. SCD0503 is being used in humans for the first time in this study. Study procedures The study will last for approximately 1 to 4 months. During this time, the participant will come to the investigational site 8 times for visits. During 4 visits the participant will undergo a clamp examination. The blood sugar-lowering effect of the investigational product is determined using a clamp device, a computer-controlled device that maintains blood sugar at a constant level within the normal range. This is achieved by infusing a sugar solution. During 2 further visits the participant will have a meal test. During the meal test, the blood sugar-lowering effect of the investigational product is determined after intake of a standardized meal as breakfast. You will have catheters in your arms to take blood, measure your blood sugar level and to infuse glucose (sugar) or insulin, if needed. SCD0503 is compared with a regular human insulin already approved for the treatment of diabetes. The participant will receive SCD0503 and the comparator product during different visits to the investigational site. The participant will also receive a placebo together with the investigational or the comparator product. The placebo looks identical but contains no active ingredient. As the investigational product is administered orally and the comparator product is injected under the skin, two placebos are used in this study. The order of medications given will be decided by chance, using a pre-defined method called randomization (a procedure similar to flipping a coin). Neither the participant nor the study physician will know which of the 2 medicines is administered at the respective dosing occasion. However, in case of emergency, this information will be quickly available.

Neuss, North Rhine-Westphalia, Germany
RecruitingInterventional study

Family Intervention for Black Teens With Type 1 Diabetes

The purpose of this study is to conduct a multicenter, randomized effectiveness trial of The 3Ms 2.0 compared to an educational control condition for improving adolescent glycemic control and diabetes-related family relationships and reducing primary caregiver diabetes-related distress among Black adolescents with type 1 diabetes (T1D) and their primary caregivers. The proposed study would develop and test The 3Ms 2.0 adapted intervention when delivered using a mobile health approach (accessed via parents' cell phone). The intervention will also include new family intervention content (videoclips and text messages).

Washington D.C., District of Columbia, United States +3 more