Insulin Therapy and Lipoproteins' Profile in Type 1 Diabetes.

NCT ID: NCT02306005

Last Updated: 2024-12-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-11-30

Study Completion Date

2028-01-31

Brief Summary

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The aim of the study is to evaluate the effect of insulin therapy in patients with newly diagnosed type 1 diabetes on quantitative and qualitative changes of plasma lipoproteins, with particular emphasis on HDL metabolism, and analysis of the factors determining the effect of insulin therapy on lipid profile.The study is planned to cover a minimum of 100 people with newly diagnosed type 1 diabetes and lead prospective observation of this group (for a minimum of 5-10 years). Patients will be assessed: during the first hospitalization in the moment of diagnosis (prior to introduction of insulin treatment), after 3 weeks, after 6 months and after 12 months of insulin therapy. Further observations planned in the annual intervals. In addition, the study group will be under constant monitoring of metabolic evaluation every three months in the Outpatient Clinic.

During each follow-up will be assessed parameters evaluating the metabolism of plasma lipoprotein fractions and subfractions of HDL:

1. The concentration of apolipoprotein: including A-I, A-II, A-IV, C (II and III), D and E
2. Electrophoresis of plasma lipoproteins
3. Electrophoresis of HDL
4. The activity of enzymes: acyltransferase lecithin: cholesterol (LCAT) and plasma lipoprotein lipase Moreover, evaluation of factors which may potentially modify the relation between insulin therapy and lipoproteins will be assessed

1. Anthropometric data and markers of insulin resistance (such as BMI, waist-hip ratio, the estimated rate of glucose distribution, VAI index, body fat, blood pressure),
2. Metabolic management of diabetes,,
3. Protein glycation end products
4. The concentration of plasma adipokines.

Expected impact of the research project on the development of science, civilization and society The obtained results allow to assess the impact of exogenous insulin on quantitative and qualitative changes and metabolism of lipoproteins in the serum of patients with type 1 diabetes. Understanding the etiopathogenesis of this phenomenon and the factors affecting it seem to be very important in the treatment of patients with type 1 diabetes, where insulin is the treatment of choice and dosage adjustment appears to be extremely important. Remains unknown whether the changes in the lipoprotein profile result from the beginning of insulin therapy or other factors influence it. Selecting a group of patients with less favorable lipoprotein profile may allow better metabolic control, and thus will affect the quality and length of life of our patients. These studies will assess the impact of our therapeutic actions on the diagnosis of the disease on long-term consequences, such as the development of chronic complications.

Detailed Description

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Conditions

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Type 1 Diabetes Mellitus

Keywords

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diabetes mellitus type 1, insulin therapy, lipoproteins, HDL

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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Type 1 diabetic patients

Newly diagnosed diabetes type 1 admitted to the Department of Internal Medicine and Diabetology. Measurement of lipid profile and lipoproteins before and after administration of insulin. Further continuous observation with follow-up every year and evaluation of final end-points after 5 and 10 years.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* New onset type 1 diabetes and treatment with insulin.
* Written consent to participate in the study.
* There are no other medical conditions, and with no other additional drugs beyond insulin

Exclusion Criteria

* any other medical conditions, and any other additional drugs beyond insulin
Minimum Eligible Age

18 Years

Maximum Eligible Age

35 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Poznan University of Medical Sciences

OTHER

Sponsor Role lead

Responsible Party

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Aleksandra Uruska

PhD, MD

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Department of Internal Medicine and Diabetiology Poznan University of Medical Sciences

Poznan, , Poland

Site Status RECRUITING

Countries

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Poland

Central Contacts

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Dorota Zozulinska-Ziolkiewicz, Prof

Role: CONTACT

Phone: 618474579

Email: [email protected]

Aleksandra Uruska, PhD

Role: CONTACT

Phone: 607620750

Email: [email protected]

Facility Contacts

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Aleksandra Uruska, PhD

Role: primary

Dorota Zozulinska-Ziolkiewicz, Prof

Role: backup

References

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Cieluch A, Uruska A, Grzelka-Wozniak A, Niedzwiecki P, Flotynska J, Zozulinska-Ziolkiewicz D. Changes in high-density lipoprotein cholesterol (HDL-C) level and the ratio of triglycerides to HDL-C during the first year of type 1 diabetes. Pol Arch Intern Med. 2019 Sep 30;129(9):598-604. doi: 10.20452/pamw.14920. Epub 2019 Aug 5.

Reference Type RESULT
PMID: 31379357 (View on PubMed)

Cieluch A, Uruska A, Grzelka A, Zozulinska-Ziolkiewicz D. An increase in high-density lipoprotein cholesterol concentration after initiation of insulin treatment is dose-dependent in newly diagnosed type 1 diabetes. The results of the InLipoDiab1 study. Pol Arch Intern Med. 2018 Jan 31;128(1):69-71. doi: 10.20452/pamw.4183. Epub 2018 Jan 19. No abstract available.

Reference Type RESULT
PMID: 29350676 (View on PubMed)

Uruska A, Mietkiewska-Dolecka M, Grzelka-Wozniak A, Flotynska J, Saldanha S, Rohatgi A, Zozulinska-Ziolkiewicz D. Clinical remission in newly diagnosed type 1 diabetes mellitus and HDL function on cholesterol efflux capacity: prospective InLipoDiab1 study. Endocr Connect. 2025 Jun 17;14(6):e240704. doi: 10.1530/EC-24-0704. Print 2025 Jun 1.

Reference Type DERIVED
PMID: 40465557 (View on PubMed)

Other Identifiers

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856/14

Identifier Type: -

Identifier Source: org_study_id