for people ages 18 years and up (full criteria)
at San Francisco, California and other locations
study started
completion around
Principal Investigator
by Michael Conte, MD
Headshot of Michael Conte
Michael Conte



This is a multi-center observational cohort study of patients with diabetic foot ulcers (DFU) to develop and validate potential tissue-based biomarkers that predict complete wound healing. Eligible and consented participants will begin standard of care treatment after collection of tissue specimens from the wound's edge. An additional tissue specimen is collected at 4 weeks if clinically indicated. Tissues will be tested for c-myc and phosphorylated glucocorticoid receptor (p-GR) levels using validated protocols at a central laboratory. Participants will be followed weekly for up to 12 weeks or until complete wound healing (whichever occurs first). One final assessment 2 weeks after complete wound healing will occur to confirm healing.

Official Title

Predictive and Diagnostic Biomarkers for Diabetic Foot Ulcers - C-myc and Phosphorylated Glucocorticoid Receptor


Diabetes, Diabetic Foot, Diabetic Foot Ulcer, Diabetic Wound, biomarker, C-myc, phosphorylated glucocorticoid receptor, DFC, Diabetic Foot Consortium, Foot Ulcer, Ulcer


You can join if…

Open to people ages 18 years and up

In order to be eligible to participate in this study, an individual must meet all of the following criteria:

  1. Provision of signed and dated informed consent form
  2. Stated willingness to comply with all study procedures and availability for the duration of the study
  3. Male or female, aged 18 years or older.
  4. Clinically diagnosed with diabetes or meeting the American Diabetes Association (ADA) criteria.
  5. Foot ulcer of diabetic etiology, with all of the following characteristics:
    1. Ulcer size > 0.5 cm2 and < 12 cm2 at least 2 cm from any other ulcer, and
    2. Ulcer with Wagner grade 1 or 2 In case of multiple ulcers, select the largest ulcer that meets inclusion criteria.
  6. Patients with neuropathic or neuro-ischemic ulcers with adequate circulation to allow healing to the affected extremity as demonstrated by at least 2 of the following within 6 months of Visit 1:
    1. Ankle brachial index (ABI) ≥ 0.6 with Doppler Waveforms, or
    2. Absolute ankle pressure ≥ 70 mm Hg, or
    3. Toe pressure ≥ 40 mmHg, or
    4. TcPO2 ≥ 40 mmHg
  7. Willingness to comply with standard of care which includes an initial surgical debridement of the wound.

You CAN'T join if...

An individual who meets any of the following criteria will be excluded from participation in this study:

  1. Patient participating in an interventional clinical trial within 1 month of Visit 1
  2. Currently receiving radiation to target area or chemotherapy
  3. Participants with Charcot's foot or other foot deformities that prevents adequate targeted ulcer offloading
  4. Participant with active severe infection or osteomyelitis at the time of screening
  5. History of cancer within last 3 years, other than non-melanoma skin cancer
  6. Known or suspected malignancy of current study ulcer
  7. Use of adjunctive therapy within previous 30 days
  8. Currently receiving medication considered to be systemic glucocorticoids
  9. Plan to perform a vascular intervention, such as surgical bypass, angioplasty or stenting, or < 1 month from a prior ipsilateral vascular intervention
  10. Any history of concomitant medical condition that, in the opinion of the investigator(s), would compromise the participant's ability to safely complete the study


  • UCSF accepting new patients
    San Francisco California 94143 United States
  • Stanford University accepting new patients
    Stanford California 94305 United States

Lead Scientist at UCSF

  • Michael Conte, MD
    Professor, Surgery, School of Medicine. Authored (or co-authored) 309 research publications


accepting new patients
Start Date
Completion Date
University of Michigan
Study Type
Expecting 213 study participants
Last Updated