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149 clinical studies listed.

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Diabetes Mellitus, Type 1

Tundra lists 149 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

NCT05923827

Omnipod® 5 With Libre 2 vs. MDI for Type 1 Diabetes in Children and Adults

This study is a randomized, controlled trial to evaluate the efficacy and safety of the Omnipod® 5 System with the FreeStyle Libre 2 continuous glucose monitor compared to Multiple Daily Injections (MDI) along with the FreeStyle Libre 2 continuous glucose monitor in children and adults with type 1 diabetes.

Gender: All

Ages: 4 Years - 70 Years

Updated: 2026-11-03

Diabetes Mellitus, Type 1
ACTIVE NOT 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: 2026-11-02

22 states

Diabetes Mellitus, Type 1
RECRUITING

NCT06325202

Closed Loop and Education for Hypoglycemia Awareness Restoration

The purpose of the CLEAR study is to determine the effect on counterregulatory responses (CRR) of intervening (by attempting to strictly avoid hypoglycemia) to improve awareness of hypoglycemic symptoms among adults with type 1 diabetes (T1D) who have impaired awareness of hypoglycemia (IAH). IAH affects 20-25% of adults with T1D, and rises with increasing duration of T1D.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-10-30

6 states

Diabetes Mellitus, Type 1
RECRUITING

NCT06453928

Starting Technology in At Risk Type 1 Diabetes Study

Diabetes technology has revolutionized T1D management, disparities in technology access are evident among racial-ethnic minorities, patients with lower socioeconomic status and those with poorly controlled T1D (A1c\>8.5%). In order to examine whether diabetes technology can reduce diabetes care burdens and enhance outcomes among some of highest need patients, diabetes technology clinical trials must be expanded beyond the very select populations included in studies thus far (ie., mostly White, higher SES). Therefore, the investigators propose to perform a pilot RCT of hybrid closed-loop insulin pump therapy (HCL) in 40 diverse adult patients with poorly controlled T1D (HbA1c ≥8.0%) from the largest academic and safety net health systems in the Los Angeles region to determine the feasibility of a RCT in this population and identify facilitators and barriers of effective use of closed loop insulin pump therapy in patients with poorly controlled T1D.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-29

1 state

Diabetes Mellitus, Type 1
RECRUITING

NCT05585983

INfluenza VaccInation To Mitigate typE 1 Diabetes

In a multicenter, prospective, randomized, controlled clinical trial to compare influenza vaccination and placebo in sustaining β cell function in early type 1 diabetes mellitus.

Gender: All

Ages: 7 Years - 17 Years

Updated: 2026-10-28

Diabetes Mellitus, Type 1
COMPLETED

NCT05161793

Telemedicine Continuous Remote Monitoring of Adults With Uncontrolled Diabetes Mellitus

The purpose of this single center observational study is to determine the effect of continuous remote continuous glucose monitor (CGM) reporting coupled with a telemedicine intervention (Tele-CGM program) on levels of HbA1C in adults with type 1 or type 2 diabetes. The investigators will follow 200 English and Spanish speaking adults (125 type 2 and 75 type 1 patients) over 12 months. The primary analysis will follow the intention-to-treat principle; participants will all be offered the intervention. The primary trial outcome of HbA1c/Glucose Management Indicator (GMI) at 6 and 12 months will be compared from baseline using a linear regression model. The primary independent variable will be the HbA1C from baseline to 6 and 12 months. Patients will serve as their own control. Results will be summarized as group-specific mean, standard deviation (SD) HbA1c, along with a mean treatment difference and 95% confidence interval. Model assumptions including normality and homoscedasticity of residuals will be evaluated; normalizing transformations or rank-based non-parametric procedures will be used as needed. The complete evaluation of HbA1c, including baseline, 6-month and 12 month measurements will be analyzed with mixed effects linear regression, specifying a random participant-level intercept and an unstructured covariance matrix, to accommodate the repeatedly measured data. The secondary trial outcomes of time in range (TIR; CGM glucose levels 70-180) and questionnaires will be compared from baseline to 6 and 12 months using linear regression procedures as detailed above. Once completed, study participants will have the opportunity to enter a study extension for an additional 12 months.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-20

1 state

Diabetes Mellitus, Type 1
Diabetes Mellitus, Type 2
RECRUITING

NCT05478707

Therapeutic Strategies for Microvascular Dysfunction in Type 1 Diabetes

The investigators will test the hypothesis that, in adults with type 1 diabetes (T1D), glucagon-like peptide-1 receptor agonism (GLP-1RA, i.e. dulaglutide) enhances insulin-mediated skeletal muscle microvascular perfusion via attenuating endothelial oxidative stress and thereby improving endothelial function.

Gender: All

Ages: 18 Years - 40 Years

Updated: 2026-10-15

1 state

Diabetes Mellitus, Type 1
Endothelial Dysfunction
RECRUITING

NCT03746769

Improving Islet Transplantation Outcomes With Gastrin for Type I Diabetes

This clinical study will evaluate the safety and effectiveness of Gastrin treatment with islet transplantation to help patients with difficult to control type 1 diabetes make insulin again and improve blood sugar control. This study involves two investigational (experimental) products not yet approved by the U.S. Food and Drug Administration (FDA) as a treatment for any disease: 1. Human allogenic islet cells (islet cells from a deceased, unrelated human donor) 2. Gastrin-17 (Gastrin) - a hormone secreted by the gut

Gender: All

Ages: 18 Years - 68 Years

Updated: 2026-10-15

1 state

Diabetes Mellitus, Type 1
COMPLETED

NCT02925299

Day and Night Closed-loop in Young People With Type 1 Diabetes

The main study objective is to determine whether 24/7 automated closed-loop glucose control combined with low glucose feature will improve glucose control as measured by HbA1c. This is an open-label, multi-centre, multi-national, single-period, randomised, parallel group design study, involving a 6 month period of home study during which day and night glucose levels will be controlled either by a closed-loop system combined with low glucose feature (intervention group) or by insulin pump therapy alone (control group). It is expected that a total of up to 150 subjects (aiming for 130 randomised subjects) with type 1 diabetes will be recruited through paediatric outpatient diabetes clinics of the investigation centres. Participants will all be on subcutaneous insulin pump therapy. Subjects in the intervention group will have proven competencies both in the use of the study insulin pump and the study continuous glucose monitoring (CGM) device, and will receive appropriate training in the safe use of closed-loop insulin delivery system and low glucose feature. All subjects will have regular contact with the study team during the home study phase including 24/7 telephone support. The primary outcome is between group differences in HbA1c levels at 6 months post study arm initiation. Secondary outcomes are the time spent in the glucose target (3.9 to 10.0mmol/l; 70 to 180mg/dl), time spent with glucose levels above and below target, as recorded by CGM, and other CGM-based metrics. Safety evaluation comprises assessment of the frequency of severe hypoglycaemic episodes and diabetic ketoacidosis (DKA).

Gender: All

Ages: 6 Years - 18 Years

Updated: 2026-10-15

8 states

Diabetes Mellitus
Diabetes Mellitus, Type 1
Glucose Metabolism Disorders
+2
RECRUITING

NCT07211126

The Real-World Control-IQ Glycemic Control and Quality of Life Study in Type 1 Diabetes in France

This post-market surveillance study is primarily designed to demonstrate the ongoing safety of the Control-IQ system, the ongoing performance of glycemic control and quality of life with Control-IQ system use, and the rate of use of the Control-IQ system. The system will be assessed in all approved populations during the first 12 months of use.

Gender: All

Ages: 6 Years - Any

Updated: 2026-10-14

Diabetes Mellitus, Type 1
RECRUITING

NCT06450730

Effectiveness of a Combined mHealth-CBT Psychological Intervention to Improve Psychological Well-Being in Young Patients With T1D

Type 1 diabetes (T1D) can lead to psychological adjustments that impact the acceptance and management of this health condition, as well as the overall quality of life of patients, especially among the young. Therefore, there is a need for psychological interventions aimed at enhancing the psychological well-being of children and adolescents with T1D. The goal of this non-randomized controlled trial is to evaluate whether a combined intervention comprising mHealth (using an app) and face-to-face psychological sessions based on Barlow's protocol and cognitive-behavioral therapy techniques (CBT) is effective in enhancing psychological well-being in children and adolescents with T1D. The main hypotheses are: * H1: The primary results expected to be obtained are a significant increase in psychological well-being, which means a decreased diabetes distress (DDS) (H1a) an increased subjective well-being (PANAS) (H1b) and a better self-efficacy for managing their emotions (RESE) (H1c). * H2: As secondary outcomes, it is also expected that the combined mHealth-CBT intervention would increase the level of positivity (P-Scale) (H2a), the self-esteem (RSES) (H2b) and the satisfaction with life (SWLS) (H2c).

Gender: All

Ages: 6 Years - 18 Years

Updated: 2026-10-13

1 state

Diabetes Mellitus, Type 1
ACTIVE NOT RECRUITING

NCT05910840

Support-t Online Training in Youth Living With Type 1 Diabetes Transitioning to Adult Care

The investigators will conduct a randomized controlled trial (RCT) to examine how an online training and peer support platform could help the preparation to transition to adult care. Among 14-16 year old youth with Type 1 Diabetes (T1D), the investigators aim to assess the effect of an online training and peer support platform (Support-t) integrated in usual care, compared with usual care on Hemoglobin A1c (HbA1c), adverse outcomes and psychosocial measures during the preparation for transition to adult care. The investigators will conduct a multi-site, parallel group, blinded (outcome assessors, data analysts), superiority RCT of adolescents with T1D (14-16 years of age) followed at one of 4 university teaching hospital-based pediatric diabetes clinics in the province of Quebec.

Gender: All

Ages: 14 Years - 16 Years

Updated: 2026-10-09

Diabetes Mellitus
Diabetes Mellitus, Type 1
Glucose Metabolism Disorders (Including Diabetes Mellitus)
+4
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: 2026-10-08

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: 2026-10-08

6 states

Diabetes Mellitus, Type 1
COMPLETED

NCT05445284

Group Education Trial to Improve Transition for Parents of Adolescents With T1D

The investigators will study if group education for parents of adolescents with type 1 diabetes (T1D) will improve the transition from adolescence to adulthood. The investigators aim to conduct a pilot randomized controlled trial (RCT) of parent group education sessions to assess the feasibility and refine the intervention to inform a full-scale multicenter RCT. The aims of the pilot are to estimate: 1. Recruitment rate, 2. Adherence rate, 3. Response rate, and 4. Retention rate. The aims for the future full-scale multicenter RCT are to assess the effect of parent group education sessions integrated into pediatric care, compared with usual care on self-management, hemoglobin A1c (HbA1c), adverse outcomes and validated measures during the transition from adolescence to adulthood. The investigators will conduct a parallel group, blinded (outcome assessors, data analysts), superiority pilot RCT of parents and their adolescents with T1D (14-16 years of age) followed at a university teaching hospital-based pediatric diabetes clinic in Montreal. Interventions will occur over 12-months. Follow-up will be to 18 months from enrollment.

Gender: All

Ages: 14 Years - 16 Years

Updated: 2026-10-07

1 state

Diabetes Mellitus
Diabetes Mellitus, Type 1
Glucose Metabolism Disorders
+4
NOT YET RECRUITING

NCT07846852

Impact of Dietary Intervention Within an Interprofessional Cooperative Protocol for Prandial Insulin Dose Adjustment in People Living With Type 1 Diabetes

This retrospective multicenter cohort study aims to evaluate the effectiveness of an interprofessional cooperative protocol allowing dietitians to adjust prandial insulin-to-carbohydrate ratios in adults living with type 1 diabetes receiving functional insulin therapy. Glycemic outcomes will be assessed using continuous glucose monitoring data collected during routine clinical care. The primary endpoint is the change in Time in Range (TIR) between baseline and 6 months.

Gender: All

Ages: 18 Years - 69 Years

Updated: 2026-09-29

Diabetes Mellitus, Type 1
RECRUITING

NCT06945406

A Study of LY4057996 in Healthy Participants and Participants With Type 1 and Type 2 Diabetes

The purpose of this study is to evaluate how well LY4057996 is tolerated and what side effects may occur in healthy participants and participants with Type 1 and Type 2 Diabetes. The study drug will be administered either subcutaneously (SC) (under the skin) or intravenously (IV) (into a vein in the arm). Blood tests will be performed to check how much LY4057996 gets into the bloodstream and how long it takes the body to eliminate it. The study will last 11 weeks for Part A1-A2, 4 weeks for A3-A5, 6 weeks for Part B and 7 weeks for Part C, all approximations, excluding a screening period.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-29

Diabetes Mellitus, Type 1
Diabetes Mellitus, Type 2
COMPLETED

NCT06326489

Evaluating the Efficacy and Quality of Life Impact of Transitioning to Advanced Hybrid Closed-Loop Insulin Pump Therapy in Romanian Children With Type 1 Diabetes Mellitus

The proposed study aims to demonstrate the potential benefits of transitioning T1DM children from predictive low glucose suspend insulin pump therapy to advanced hybrid closed-loop insulin pump therapy in Romania. Primary Outcome: Variations in HbA1c between baseline visit (V1 - 740G) and assessment visit following three months of 780G insulin pump therapy (V2 - 780G). Secondary Outcomes: changes in insulin requirements, time in range (TIR) levels, time below range (TBR), coefficient of variation (CV), frequency of severe hypoglycemic and hyperglycemic events requiring hospitalization, and PedsQL SF15 questionnaire scores.

Gender: All

Ages: 7 Years - 17 Years

Updated: 2026-09-29

1 state

Diabetes Mellitus, Type 1
COMPLETED

NCT05757713

Teplizumab in Pediatric Stage 2 Type 1 Diabetes

The purpose of this study is to assess the safety and pharmacokinetics (PK) of teplizumab in participants with Stage 2 type 1 diabetes who are \<8 years of age.

Gender: All

Ages: 0 Years - 7 Years

Updated: 2026-09-29

10 states

Diabetes Mellitus, Type 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: 2026-09-25

4 states

Diabetes Mellitus, Type 1
ACTIVE NOT 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: 2026-09-25

45 states

Diabetes Mellitus, Type 1
COMPLETED

NCT02402439

Treatment of Type I Diabetes by Islet Transplantation Into the Gastric Submucosa Study Protocol

The goal of this trial is to gain initial clinical experience regarding the safety and efficacy of treating type I diabetes in people who have received a kidney transplant by transplanting islets into a new transplant site in the stomach (gastrointestinal submucosa). A total of 6 patients will be enrolled in the study and followed for a period of up to 3 years after the last islet transplant.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-09-25

1 state

Diabetes Mellitus, Type 1
COMPLETED

NCT06229236

Assessing Effectiveness of a Diabetes Navigator in Increasing Progression of Advanced Diabetes Technologies

The goal of this randomized control trial is to determine if the support of a Diabetes Navigator is more effective than standard care in improving uptake and use of advanced diabetes technology among patients with type 1 diabetes.

Gender: All

Ages: 5 Years - 75 Years

Updated: 2026-09-23

1 state

Diabetes Mellitus, Type 1
RECRUITING

NCT07803744

A Study of Tirzepatide (LY3298176) in Participants With Type 1 Diabetes Mellitus and Overweight or Obesity

The main purpose of this study is to learn more how tirzepatide affects stomach emptying in participants with Type 1 Diabetes Mellitus (T1DM) and overweight or obesity. Participation in this study will last about 8 weeks, including screening and follow-up.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-09-23

1 state

Diabetes Mellitus, Type 1
Overweight
Obesity