Ultrasound Detection and Characterization of Subclinical Hypertrophy in Diabetes

NCT ID: NCT02348099

Last Updated: 2025-05-07

Study Results

Results available

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Basic Information

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Recruitment Status

TERMINATED

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2015-03-31

Study Completion Date

2025-04-22

Brief Summary

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This is a pilot study to enroll 100 people to assess the incidence of lipohypertrophy as detected with ultrasound and its impact on glycemic variability.

Detailed Description

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Lipohypertrophy is a well documented phenomenon in patients with diabetes in which hypertrophy and differentiation of adipocytes occurs in the dermal reticular layer at the sites of subcutaneous insulin injection. Currently, lipohypertrophy is assessed by palpating insulin injection sites. The detection on early, non palpable (subclinical) lipohypertrophy remains difficult in the clinical setting. Recent studies have identified distinct ultrasonographic features of hyperechogenicity in areas of adipose tissue consistent with clinical evidence of lipohypertrophy at insulin injection sites, and have detected changes int he thickness of subcutaneous tissue where not clinically evident in population of patients with type 1 diabetes. Lipohypertrophy can adversely affect glycemic control. Injecting into lipohypertrophic areas leads to poor absorption and the need for increasing doses of insulin.

In this study study participants will undergo an assessment for lipohypertrophy during a scheduled visit at the VGH Diabetes Centre. A Diabetes Nurse will assess lipohypertrophy by palpation according to the FIT Protocol. A second diabetes nurse who was not present at the palpation will assess insulin injection sites for lipohypertrophy by ultrasound using a linear probe.

Conditions

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Diabetes Lipohypertrophy

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Interventions

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Ultrasound

Abdomen scanned with portable ultrasound to determine presence of subclinical lipohypertrophy.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* 19 years of age or older
* Type 1 or Type 2 diabetes
* Using insulin to manage diabetes for at least 2 years

Exclusion Criteria

* Using insulin pumps, insulin secretagogues, Glucagon-Like Peptide-1 (GLP-1) agonists to manage diabetes
* Use of immunosuppressant agents
* Women who are pregnant
Minimum Eligible Age

19 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of British Columbia

OTHER

Sponsor Role lead

Responsible Party

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Graydon Meneilly

Professor, UBC Department of Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Graydon Meneilly, MD

Role: PRINCIPAL_INVESTIGATOR

University of British Columbia

Locations

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Vancouver General Hospital

Vancouver, British Columbia, Canada

Site Status

Countries

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Canada

References

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Kapeluto JE, Paty BW, Chang SD, Meneilly GS. Ultrasound detection of insulin-induced lipohypertrophy in Type 1 and Type 2 diabetes. Diabet Med. 2018 Oct;35(10):1383-1390. doi: 10.1111/dme.13764. Epub 2018 Jul 16.

Reference Type DERIVED
PMID: 29908078 (View on PubMed)

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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H14-02461

Identifier Type: -

Identifier Source: org_study_id

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