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Spectroscopic and Colorimetric Analysis of Acanthosis Nigricans in Patients With Hyperinsulinemia

This study has been completed.
Information provided by (Responsible Party):
Iltefat Hamzavi, Henry Ford Health System Identifier:
First received: May 12, 2010
Last updated: September 4, 2012
Last verified: May 2010
Acanthosis Nigricans is skin disease that associated with hyperinsulinemia. Clinical is velvety hyperpigmented plaques on neck, axilla, groin. If hyperinsulinemia is improved by treated with oral metformin and/ or diet control, acanthosis nigricans would be improved as well. Hyperpigmented plaques will be changed. We assess objective measurement by using spectroscopic and colorimetric analysis.

Condition Intervention
Acanthosis Nigricans Hyperinsulinemia Spectroscopic Analysis Drug: Metformin Behavioral: Dietary Modification

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective

Further study details as provided by Iltefat Hamzavi, Henry Ford Health System:

Enrollment: 9
Study Start Date: February 2009
Study Completion Date: June 2012
Primary Completion Date: June 2012 (Final data collection date for primary outcome measure)
Intervention Details:
    Drug: Metformin
    Dosage to be determined by Endocrinologist
    Behavioral: Dietary Modification
    To be determined by Endocrinologist

Ages Eligible for Study:   11 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Patients with both hyperinsulinemia and acanthosis nigricans.

Inclusion Criteria:

  1. Subjects must have an elevated fasting insulin level, suggesting they are in an insulin resistant state.
  2. Subjects must carry a diagnosis of acanthosis nigricans, which will be verified by a Dermatologist before entry into the study. If necessary, a small 4mm punch biopsy may be taken to document dermatopathology consistent with acanthosis nigricans.
  3. Subjects must be willing and able to undergo treatment with Metformin, including initial referral and follow up.
  4. Agree to abide by the investigator's guidelines
  5. Be able to understand the requirements of the study, the risks involved and are able to sign the informed consent form
  6. Agree to follow and undergo all study-related procedures

Exclusion Criteria:

  1. Subjects with Type 1 Diabetes are excluded because of their naturally insulin-deficient, rather than hyper-insulinemic, states.
  2. Women who are lactating, pregnant, or planning to become pregnant.
  3. Any reason the investigator feels the patient should not participate in the study.

  Contacts and Locations
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Please refer to this study by its identifier: NCT01125150

United States, Michigan
Department of Dermatology, NEW CENTER ONE
Detroit, Michigan, United States, 48202
Sponsors and Collaborators
Henry Ford Health System
Principal Investigator: Iltefat Hamzavi, M.D. Department of Dermatology, Henry Ford Hospital
  More Information

Responsible Party: Iltefat Hamzavi, Dermatologist, Henry Ford Health System Identifier: NCT01125150     History of Changes
Other Study ID Numbers: IRB5339
Study First Received: May 12, 2010
Last Updated: September 4, 2012

Keywords provided by Iltefat Hamzavi, Henry Ford Health System:
diffuse reflectance spectroscopy

Additional relevant MeSH terms:
Acanthosis Nigricans
Glucose Metabolism Disorders
Metabolic Diseases
Pigmentation Disorders
Skin Diseases processed this record on September 21, 2017