Actively Recruiting

Age: 18Years +
All Genders
ID05172089

Diabetic Foot Ulcer Biofilm Infection and Its Impact on Wound Healing and Recurrence

Led by University of Pittsburgh · Updated on 2026-03-18

405

Participants Needed

2

Research Sites

52 weeks

Total Duration

On this page

Sponsors

U

University of Pittsburgh

Lead Sponsor

N

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Collaborating Sponsor

AI-Summary

What this Trial Is About

Diabetic foot ulcers (DFU) are a common and serious complication for people with type 2 diabetes, often leading to hospitalization and amputation. This research investigates whether DFUs with a history of biofilm infection heal with weakened skin barrier function and if this impaired healing, shown by high trans-epidermal water loss (TEWL), increases the chance of wound recurrence. The study also explores the molecular mechanisms behind biofilm-related damage to skin barrier integrity in DFU patients. In this observational study, 405 patients with clinically diagnosed DFUs suspected of infection will be enrolled. Researchers will collect wound swabs for culture, take digital images of wounds, and perform assessments including health surveys and pain scales. Tests such as transcutaneous oxygen measurement, ankle-brachial index, and hemoglobin A1c will be conducted as needed. Tissue samples from the wound area will be collected to study biofilm presence. Participants will be followed for up to 16 weeks or until their wound closes. Participants will undergo regular evaluations including wound site checks and questionnaires on wound impact and pain. Monitoring involves reviewing medical records and contacting patients or care facilities to confirm wound closure. The primary outcomes being measured are biofilm infection levels at 16 weeks and TEWL at 12 weeks. This thorough monitoring aims to understand how biofilm infection affects wound healing and recurrence in diabetic foot ulcers.

CONDITIONS

Brief Title

Diabetic Foot Ulcer (DFU) Biofilm Infection and Recurrence

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Male or female, age 18 years or older
  • Willing to follow all study instructions and attend all visits
  • Have an open diabetic foot ulcer
  • Adequate arterial blood flow as shown by one or more of: TcOM >30 mmHg, ankle-brachial index ≥0.7, toe pressure >30 mmHg, or TBI >0.6 mmHg (for wounds below the knee)
Not Eligible

You will not qualify if you...

  • Unable to understand study procedures, risks, and benefits
  • Wounds closed or planned to be closed surgically by flap or graft
  • Marked immunodeficiency such as HIV/AIDS or use of immunosuppressive medications
  • TcOM less than 30 mmHg
  • Hemoglobin A1c greater than 15 within 3 months before enrollment
  • Autoimmune connective tissue disease
  • Ulcer size or location preventing TEWL measurement
  • Pregnant women
  • Prisoners
  • Unable to comply with study procedures or complete visits

AI-Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Monitoring

Duration - Up to 16 weeks or until wound closure, whichever comes first

Participants are observed with wound swabs, digital imaging, tissue sample collection, health surveys, and wound site evaluations to assess biofilm infection and skin barrier function.

Regular check-ins by phone or in-person as needed

Trial Site Locations

Total: 2 locations

1

University of Arizona

Tucson, Arizona, United States, 85724

Actively Recruiting

2

UPMC Wound Healing Services at UPMC Passavant

Cranberry Township, Pennsylvania, United States, 16066

Actively Recruiting

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Research Team

P

Piya Das Ghatak, PhD, MS

S

Shomita S Steiner, PhD, MS

How is the study designed?

Study Type

OBSERVATIONAL

Masking

N/A

Allocation

N/A

Model

N/A

Primary Purpose

N/A

Number of Arms

1

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