In Vivo Corneal Confocal Microscopy for Non-invasive Assessment of Diabetic Peripheral Neuropathy

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01695629
Recruitment Status : Completed
First Posted : September 28, 2012
Last Update Posted : December 7, 2015
Information provided by (Responsible Party):
Roni Shtein, University of Michigan

Brief Summary:
Clinical in vivo confocal microscopy (IVCM) is a relatively new technique of corneal evaluation that permits non-invasive imaging of corneal structures on the cellular level. Precise anatomic characterization of corneal structures, including corneal nerves, can be rapidly performed with high resolution.

Condition or disease
Diabetic Peripheral Neuropathy

Detailed Description:

Evaluation of the corneal nerve layer with IVCM provides a method of direct visualization of peripheral small fiber nerves and a quantifiable assessment of nerve abnormalities in a low risk, non-invasive manner. Therefore, our goal is to develop a non-invasive diagnostic protocol as a quantitative tool for the evaluation of DPN. The protocol and the tool we seek to develop could ultimately be used in large-scale clinical trials and in clinical practice to assess DPN severity and progression.

We hypothesize that in vivo confocal imaging of the corneal nerve layer is a clinically viable method to assess and quantify systemic peripheral nerve health. We emphasize that this imaging method can be used in both humans and animal models to provide quantifiable, longitudinal data on the same live individual to advance our understanding of the development and progression of DPN, and to evaluate treatment effectiveness.

Study Type : Observational
Actual Enrollment : 37 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: In Vivo Corneal Confocal Microscopy for Non-invasive Assessment of Diabetic Peripheral Neuropathy
Study Start Date : January 2011
Actual Primary Completion Date : December 2015
Actual Study Completion Date : December 2015

Resource links provided by the National Library of Medicine

None to Mild
Subjects with Diabetes with none to mild peripheral neuropathy
Subjects with diabetes with severe neuropathy

Primary Outcome Measures :
  1. changes between control and diabetic patients [ Time Frame: 12 years ]

Biospecimen Retention:   Samples Without DNA
Skin biopsy from leg

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 99 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Subjes\cts with diabetes with none, mild or severe neuropathy

Inclusion Criteria:

  • diabetes

Exclusion Criteria:

  • history of laser eye surgery, corneal disease, multiple sclerosis, Parkinson's disease, or any known systemic neuropathy.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01695629

United States, Michigan
Kellogg Eye Center
Ann Arbor, Michigan, United States, 48105
Sponsors and Collaborators
University of Michigan

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Roni Shtein, Assistant Professor, Department of Ophthalmology, University of Michigan Identifier: NCT01695629     History of Changes
Other Study ID Numbers: DPN-42377
First Posted: September 28, 2012    Key Record Dates
Last Update Posted: December 7, 2015
Last Verified: December 2015

Additional relevant MeSH terms:
Peripheral Nervous System Diseases
Diabetic Neuropathies
Neuromuscular Diseases
Nervous System Diseases
Diabetes Complications
Diabetes Mellitus
Endocrine System Diseases