Efficacy of Glycemic Improvement Project (GLITTER Study) in Type 1 Diabetes-GLITTER Study 2
1 other identifier
interventional
400
1 country
10
Brief Summary
The GLITTER Study 2 is a cluster randomized trial that will evaluate the impact of comprehensive and intensive management, comprising a team, technology, education, and peer resources, on metabolic control and psychological outcomes in patients with type 1 diabetes.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Aug 2025
10 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 24, 2025
CompletedFirst Posted
Study publicly available on registry
July 31, 2025
CompletedStudy Start
First participant enrolled
August 18, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 1, 2027
September 3, 2025
July 1, 2025
1.5 years
July 24, 2025
September 1, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in HbA1c
The primary outcome is the Change in Glycated Hemoglobin A1C (HbA1c) before and after the 52 weeks intervention. HbA1c is a physiological marker of the percentage of red blood cells that have glycated (bonded with a sugar). HbA1c is used to measure changes in average blood sugar over the past three months.
Baseline, 13, 26, and 52 weeks
Secondary Outcomes (23)
Percentage of patients in each group with HbA1c <7.0%
52 weeks
Percentage of patients in each group with HbA1c <7.5%
52 weeks
CGM-measured Percentage Time 70-180 mg/dL (3.9-10.0 mmol/L)
Baseline, 13, 26, and 52 weeks
CGM-measured Percentage Time >180 mg/dL (>10.0 mmol/L)
Baseline, 13, 26, and 52 weeks
CGM-measured Percentage Time >250 mg/dL (>13.9 mmol/L)
Baseline, 13, 26, and 52 weeks
- +18 more secondary outcomes
Other Outcomes (3)
Severe hypoglycemic episodes
52 weeks intervention period
Diabetes ketoacidosis
52 weeks intervention period
Serious Adverse Events
52 weeks intervention period
Study Arms (2)
Intervention group
EXPERIMENTALPatients with T1D in the intervention group will undergo comprehensive management.
Control group
OTHERPatients with T1D in the control group will receive routine management.
Interventions
Patients with T1D will use insulin pumps and CGM , while undergoing structured education courses under the management of a specialized T1D team and engaging in peer support activities.
Patients with T1D will be managed according to the routine diagnosis and education model of each hospital.
Eligibility Criteria
You may not qualify if:
- Patients who plan to receive diabetes treatment at other hospitals.
- Patients who have used an automated insulin delivery system or sensor-augmented pump within 3 months prior to screening.
- Patients who refuse to use continuous glucose monitoring or insulin pumps, or refuse data upload and remote monitoring.
- Patients with severe cardiovascular, cerebrovascular, hepatic, or renal diseases; uncontrolled systemic diseases, thyroid diseases; autoimmune diseases; or malignancies.
- Patients diagnosed with hematologic or bleeding disorders.
- Patients who have received red blood cell transfusions or erythropoiesis-stimulating agents within 3 months prior to screening.
- Patients who have used any oral, injectable, or intravenous corticosteroids within 8 weeks prior to screening, or who plan to use corticosteroids during the trial.
- Patients with severe skin diseases that may affect the application sites of continuous glucose monitoring or insulin pump patches.
- Patients with auditory or visual impairments.
- Patients with alcohol or drug abuse.
- Patients who plan to receive blood transfusions during the study period.
- Patients who plan to undergo elective surgery requiring general anesthesia or dialysis during the study period.
- Pregnant women, women planning to become pregnant within 1 year of the study, or women who are breastfeeding.
- Patients who are currently participating in or have participated in other drug or device trials within the last 2 weeks.
- Patients who, in the investigator's opinion, are not suitable for participation in this clinical trial, such as those with a history of vision impairment, eating disorders, celiac disease, etc.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (10)
Department of Endocrinology and Metabolism, Peking University People's Hospital
Beijing, Beijing Municipality, China
Department of Endocrinology, Quanzhou First Hospital Affiliated to Fujian Medical University
Quanzhou, Fujian, China
Department of Endocrinology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University
Shenzhen, Guangdong, China
Second Department of Endocrinology and Metabolism, Tangshan Gongren Hospital
Tangshan, Hebei, China
Endocrinology and Metabolism Center, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology
Luoyang, Henan, 471003, China
Department of Endocrinology, Zhongnan Hospital of Wuhan University
Wuhan, Hubei, China
Institute of Metabolism and Endocrinology, Second Xiangya Hospital of Centra South University
Changsha, Hunan, 410011, China
Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Affiliated Hospital of China Medical University
Shenyang, Liaoning, China
Department of Endocrinology and Metabolism, Laboratory of Diabetes and metabolism research, West China Hospital, Sichuan University
Chengdu, Sichuan, China
Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health
Hangzhou, Zhejiang, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Xia Li, MD, PhD
Second Xiangya Hospital of Central South University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
July 24, 2025
First Posted
July 31, 2025
Study Start
August 18, 2025
Primary Completion (Estimated)
March 1, 2027
Study Completion (Estimated)
April 1, 2027
Last Updated
September 3, 2025
Record last verified: 2025-07
Data Sharing
- IPD Sharing
- Will not share