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Browse clinical research sites, groups, and studies.

124 clinical studies listed.

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Diabetes Mellitus, Type 1

Tundra lists 124 Diabetes Mellitus, Type 1 clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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COMPLETED

NCT07090824

Subcutaneous Pharmacokinetic Evaluation of Monomeric Insulin and Lyumjev in Adults With Type 1 Diabetes

The SPEED study is a randomized, crossover pilot study evaluating the pharmacokinetics of novel insulin formulations in adults with type 1 diabetes. The study compares two experimental insulin formulations (diluted U-200 Humalog and U-500 Humulin with sterile water, mannitol and EDTA) against commercially available U-100 Lyumjev to determine if these modifications can improve insulin onset and duration of action. Twenty participants will complete three study visits, each separated by at least48 hours. At each visit, participants will receive one of the three insulin formulations (0.20 u/kg) via subcutaneous injection following consumption of a standardized mixed meal. Blood samples will be collected frequently over 6 hours to measure insulin concentrations and assess pharmacokinetic parameters, including time to maximum concentration (Tmax), maximum concentration (Cmax), elimination half-life, and area under the curve. The study aims to address limitations of current insulin formulations used in automated insulin delivery systems, which are too slow to provide optimal meal coverage without pre-meal dosing. By reducing zinc content through EDTA chelation and decreasing metacresol concentration through dilution, these novel formulations may offer faster onset and shorter duration of action, potentially improving glucose control in people with type 1 diabetes using insulin pump therapy.

Gender: All

Ages: 18 Years - 60 Years

Updated: 2026-07-08

1 state

Diabetes Mellitus, Type 1
Type 1 Diabetes Mellitus
RECRUITING

NCT07222332

A Study of Baricitinib (LY3009104) to Preserve Beta Cell Function in Children and Adults Newly Diagnosed With Type 1 Diabetes (BARICADE-PRESERVE)

The purpose of this study is to find out if baricitinib can preserve beta-cell function in participants newly diagnosed with type 1 diabetes. Participation in the study will last about 60 weeks.

Gender: All

Ages: 1 Year - 35 Years

Updated: 2026-07-07

5 states

Diabetes Mellitus, Type 1
RECRUITING

NCT07222137

A Study of Baricitinib (LY3009104) for the Delay of Stage 3 Type 1 Diabetes in At-Risk Children and Adults

The purpose of this study is to find out if baricitinib can delay the onset of clinical type 1 diabetes (T1D) in people who are at high risk to develop T1D. Participation in the study will last up to approximately 5 years.

Gender: All

Ages: 1 Year - 35 Years

Updated: 2026-07-07

5 states

Diabetes Mellitus, Type 1
RECRUITING

NCT04786262

A Safety, Tolerability, and Efficacy Study of VX-880 in Participants With Type 1 Diabetes

This study will evaluate the safety, tolerability and efficacy of VX-880 infusion in participants with Type 1 diabetes (T1D) and impaired awareness of hypoglycemia (IAH) and severe hypoglycemia.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-06-30

10 states

Diabetes Mellitus, Type 1
Impaired Hypoglycemic Awareness
Severe Hypoglycemia
COMPLETED

NCT05756361

Family-Based Treatment for Type 1 Diabetes

Type 1 Diabetes carries high burden for affected youth and their families. Advances in insulin therapy and technology have been associated with increased obesity with 1/3 adolescents being overweight/obese. Since obesity runs in families and carries risk for poor outcomes psychologically and medically, the investigators are adapting our successful evidence-based Family Based Treatment for hybrid delivery to improve obesity and metabolic control in the affected youth and improve obesity and related co-morbidities in their parents.

Gender: All

Ages: 6 Years - 17 Years

Updated: 2026-06-30

1 state

Diabetes Mellitus, Type 1
Obesity, Childhood
Overweight
+1
ACTIVE NOT RECRUITING

NCT07160816

A Research Study to See How Insulin Icodec Helps People With Type 1 Diabetes Control Their Blood Sugar

The study will look at how well insulin icodec controls blood sugar levels in participants who have never used it before. Participants with type 1 diabetes (T1D) will be treated with insulin icodec as prescribed to by their doctor, in accordance with usual clinical practice. This study will last for about 22 to 30 weeks.

Gender: All

Ages: 18 Years - Any

Updated: 2026-06-29

4 states

Diabetes Mellitus, Type 1
RECRUITING

NCT06807190

General Use-results Surveillance With Awiqli in Patients With Diabetes Mellitus

The purpose of the study is to investigate the safety and effectiveness of Awiqli in participants with diabetes mellitus under real world clinical practice in Japan. Participants will get Awiqli as prescribed by the study doctor. The study will last for about 1 year.

Gender: All

Updated: 2026-06-29

3 states

Diabetes Mellitus, Type 1
ACTIVE NOT RECRUITING

NCT05937321

National Institute of Diabetes and Digestive Kidney Diseases* Share Plus: Continuous Glucose Monitoring With Data Sharing in Older Adults With Type 1 Diabetes* and Their Care Partners to Improve Time in Range and Reduce Diabetes Distress.

The purpose of this study is to test the Share plus intervention aimed at improving the use of data sharing between people with diabetes and their care partners in order to maximize the benefits of continuous glucose monitoring. Hypothesis: Compared to the control group, persons with diabetes enrolled in the Share plus intervention group will experience clinically significant improvements in time-in-range (TIR) (\>5%) at 12- and 24-weeks into the study, and improvement on diabetes distress. Care partners enrolled in the Share plus intervention group will experience lower diabetes distress at 12- and 24-weeks into the study.

Gender: All

Ages: 60 Years - Any

Updated: 2026-06-29

1 state

Diabetes Mellitus, Type 1
RECRUITING

NCT07076199

A Research Study to See How a Weekly Insulin, Insulin Icodec, Helps in Reducing the Blood Sugar Compared to Daily Insulin Glargine, Both in Combination With Insulin Aspart, in Adults With Type 1 Diabetes

This study compares insulin icodec, an insulin taken once a week to insulin glargine, an insulin taken once a day. The study medicine will be investigated in participants with type 1 diabetes. The study will look at how well insulin icodec taken weekly controls blood sugar compared to insulin glargine taken daily. The study will last for about 8.5 months.

Gender: All

Ages: 18 Years - Any

Updated: 2026-06-29

45 states

Diabetes Mellitus, Type 1
ACTIVE NOT RECRUITING

NCT05180591

Repeat BCG Vaccinations For The Treatment Of Pediatric Type 1 Diabetes

The purpose of this study is to investigate if repeat bacillus Calmette-Guérin (BCG) vaccinations can confer a beneficial immune and metabolic effect on pediatric Type 1 diabetes.

Gender: All

Ages: 8 Years - 17 Years

Updated: 2026-06-26

1 state

Diabetes Mellitus, Type 1
Diabetes type1
Autoimmune Diabetes
COMPLETED

NCT05014789

Control-IQ Technology 2.0 Adult and Adolescent Feasibility Study

The purpose of this study is to obtain preliminary safety and performance data on planned improvements to Control-IQ technology.

Gender: All

Ages: 14 Years - Any

Updated: 2026-06-24

1 state

Diabetes Mellitus, Type 1
COMPLETED

NCT05866900

The Impact of Daily Carbohydrate Intake on Glycemic Control in Children and Adolescents With Type 1 Diabetes Using an Advanced Hybrid Closed-loop System

Lifestyle factors, including diet, play an important role in the achievement of glycemic targets in patients with diabetes, even with the use of automated insulin delivery (AID) systems. Advanced hybrid closed-loop systems (AHCL), by implementing innovative and powerful control algorithms, have been shown to improve the post-meal glycemic control in their users through the delivery of automatic correction boluses. However, data about the influence of the daily amount of carbohydrate intake on glycemic outcomes in youth with type 1 diabetes using AHCL are missing. Therefore, this study will evaluate the association between daily carbohydrate intakes and meal patterns on glycemic control of young people living with type 1 diabetes using an AHCL system (Medtronic MiniMed 780G; Medtronic, Northridge, California) under real-life conditions.

Gender: All

Ages: 7 Years - 18 Years

Updated: 2026-06-23

Diabetes Mellitus, Type 1
RECRUITING

NCT05317455

Regulation of Brain Glucose Metabolism in Type 1 Diabetes

This is a prospective randomized placebo-controlled double-blind crossover pilot study determining the effect of dichloroacetate on brain function under clamped hypoglycemia in T1DM.

Gender: All

Ages: 18 Years - 55 Years

Updated: 2026-06-09

1 state

Diabetes Mellitus, Type 1
Hypoglycemia Unawareness
COMPLETED

NCT07305805

A Research Study of a New Medicine NNC0363-1063 in Participants With Type 1 Diabetes

The purpose of this clinical study is to find out how the novel insulin NNC0363-1063 and a non-glucose carbohydrate used in food and beverage might interact in participants with type 1 diabetes and if co-administration of these substances is safe and tolerable. All participants will get a fixed dose of NNC0363-1063 and an oral administration of different amounts of the non-glucose carbohydrate in a random order during 4 interaction tests. The participants will be in this clinical study for about 5 to 12 weeks.

Gender: All

Ages: 18 Years - 64 Years

Updated: 2026-06-05

Diabetes Mellitus, Type 1
RECRUITING

NCT07474376

Diabetes Multimorbidity Typology, Trajectory, and Feasibility of an Audio Diary Mobile Application to Support Self-management

The goal of this clinical trial is to evaluate whether an audio diary mobile application (Fabla-diabetesMM) is feasible to use and may support self-management in older adults with type 1 or 2 diabetes and multimorbidity. The main questions it aims to answer are: * Is it feasible to adapt and implement the Fabla-diabetesMM audio diary mobile app among 30 older adults with diabetes and multimorbidity * Does the use of the audio diary mobile app affect self-management outcomes

Gender: All

Ages: 65 Years - Any

Updated: 2026-06-04

1 state

Diabetes Mellitus, Type 2
Diabetes Mellitus, Type 1
RECRUITING

NCT06334133

Cadisegliatin as Adjunctive Therapy to Insulin in Participants With Type 1 Diabetes

This is a Phase 3 trial of cadisegliatin as adjunctive therapy to insulin in participants with Type 1 Diabetes Mellitus.

Gender: All

Ages: 18 Years - Any

Updated: 2026-06-02

23 states

Diabetes Mellitus, Type 1
ACTIVE NOT RECRUITING

NCT07478211

Menstrual Cycle Mapping While Using Closed-Loop Insulin Delivery

The hypothesis is that menstrual cyclicity affects glucose and energy metabolism in women with type 1 diabetes. The rationale of the hypothesis on cycle effects builds on the assumption that fluctuations of female sex hormones across the menstrual cycle cause changes in physiological parameters of glucose metabolism and energy homeostasis and/or lifestyle aspects involved in the regulation of blood glucose and body weight. It is expected that hormone fluctuations affect insulin sensitivity, gastric emptying, eating behaviour and energy expenditure. It is anticipated that insulin sensitivity is highest in the pre-ovulatory phase and lowest in the mid-luteal phase. It is further expected that gastric emptying peaks in the follicular phase, and highest energy expenditure and dietary intake are expected during the mid-luteal phase. The primary objective of this study is to characterize glucose and energy metabolism throughout the menstrual cycle in natural cycling women with type 1 diabetes. Further objectives are to assess the impact of the menstrual cycle on glucose control and insulin requirements, investigate how fluctuations in sex hormone levels influence glucose and energy metabolism, and quantify both inter- and intra-individual variability in metabolic changes related to the menstrual cycle. Additionally, the study will evaluate whether changes in key physiological components of glucose metabolism and behavioural factors mediate menstrual cycle-related variations in glucose control and insulin requirements.

Gender: FEMALE

Ages: 18 Years - 45 Years

Updated: 2026-06-02

1 state

Diabetes Mellitus, Type 1
Energy Metabolism
ACTIVE NOT RECRUITING

NCT07325461

Feasibility Study of Extended Wear Insulin Infusion Set Options During Home Use in People With Type 1 Diabetes

This feasibility study is a prospective, single center, multi-arm study evaluating possible enhancements to the SteadiSet extended wear infusion set.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-06-01

1 state

Diabetes Mellitus, Type 1
COMPLETED

NCT01047865

Type 1 Diabetes Recurrence in Pancreas Transplants

The hypothesis is that humoral and cellular islet-specific responses are an early risk factor for recurrence of autoimmunity and hyperglycemia in simultaneous pancreas-kidney (SPK) recipients independent of alloimmunity. This study will test the hypothesis and will assess their individual and combined predictive value.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-05-29

1 state

Diabetes Mellitus, Type 1
ACTIVE NOT RECRUITING

NCT06831994

Digital Implementation of the German S3 Clinical Practice Guideline for Multimorbidity

The web application gp-multitool.de is a digital tool for implementing the German S3 clinical practice guideline for multimorbidity of the German Society of General Practitioners and Family Physicians in primary care. The tool enhances evidence-based and patient-centered care by assessing and providing information relevant for the primary care of this patient group. This cluster-randomised clinical evaluation study examines the effectiveness of an intervention based on gp-multitool.de in general practitioner (GP) practices in Germany.

Gender: All

Ages: 65 Years - Any

Updated: 2026-05-29

Asthma Bronchiale
Breast Neoplasms
Coronary Disease
+10
COMPLETED

NCT06890208

Chronical Illness-related Limitations of the Ability to Cope With Rising Temperatures, Third Wave

The CLIMATE-III Observational Study examines to what extent chronically ill patients experience adverse health effects because of heat and whether the patients' specific health behavior, somatosensory amplification, risk and benefit perception, self-efficacy, health literacy, and the degree of urbanisation of the patients' administration district are associated with these effects. Study participants from Germany and Italy will be included in the sample.

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-29

Coronary Disease
Myocardial Infarction
Heart Failure
+13
ACTIVE NOT RECRUITING

NCT05743244

Janus Kinase (JAK) Inhibitors to Preserve C-Peptide Production in New Onset Type 1 Diabetes (T1D)

A multi-center, placebo-controlled, double blind, 1:1:1 randomized control clinical trial testing two different JAK Inhibitors abrocitnib, ritlecitinib, and placebo in subjects with recent onset Stage 3 Type 1 Diabetes within 100 days of diagnosis.

Gender: All

Ages: 12 Years - 35 Years

Updated: 2026-05-29

23 states

Diabetes Mellitus, Type 1
ACTIVE NOT RECRUITING

NCT04414280

The Impact of Hybrid Closed-loop Insulin Delivery in Type 1 Diabetes on Glycemic Control and PROMs

Since February 2019 the first hybrid closed-loop insulin pump, the Medtronic MiniMed 670G system, has been offered to people with type 1 diabetes in Belgium. Despite previous studies, the impact of these automated insulin delivery systems on glycemic management and patient-reported outcomes (PROMs) under real-world conditions is still unclear. Therefore, this prospective, multicenter real-world observational study will evaluate the real-world impact of the Medtronic MiniMed 670G, Medtronic MiniMed 780G, Tandem Control-IQ and Omnipod 5 systems, separately, on glycemic management and PROMs in people living with type 1 diabetes and to evaluate the safety of the Medtronic MiniMed 780G in young children with type 1 diabetes (2-6 years old). Participants will be followed in routine clinical practice for a period of 24 months after initiation of the system. The primary endpoint is the evolution of time spent in range (defined as a sensor glucose value between 70 and 180 mg/dL) from before start to 12 months after start of hybrid closed-loop therapy. Since not much is known about the impact of hybrid closed-loop on partners of adults living with type 1 diabetes, an optional substudy (INRANGE-PARTNER) will be performed investigating the quality of life in partners of adults of type 1 diabetes using hybrid closed-loop therapy. More specifically, the substudy will compare the quality of life of partners of type 1 diabetes patients both before and after implementation of hybrid closed-loop therapy.

Gender: All

Ages: 2 Years - Any

Updated: 2026-05-27

1 state

Diabetes Mellitus, Type 1
COMPLETED

NCT04545151

Verapamil SR in Adults With Type 1 Diabetes

This study has been set up within the framework of the INNODIA network. INNODIA is a global partnership between 31 academic institutions, 6 industrial partners, a small sized enterprise and 2 patient organizations, bringing their knowledge and experience together with one common goal: "To fight type 1 diabetes". (www.innodia.eu) The overall aim of INNODIA is to advance in a decisive way how to predict, stage, evaluate and prevent the onset and progression of type 1 diabetes (T1D). For this, INNODIA has established a comprehensive and interdisciplinary network of clinical and basic scientists, who are leading experts in the field of T1D research in Europe and UK (United Kingdom), with complementary expertise from the areas of immunology, Beta-cell biology, biomarker research and T1D therapy, joining forces in a coordinated fashion with industry partners and two foundations, as well as with all major stakeholders in the process, including regulatory bodies and patients with T1D and their families.

Gender: All

Ages: 18 Years - 45 Years

Updated: 2026-05-20

1 state

Diabetes Mellitus, Type 1