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Non-Invasive Assessment of Wound Healing With Optical Methods

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified May 2011 by Drexel University.
Recruitment status was:  Recruiting
Information provided by:
Drexel University Identifier:
First received: December 20, 2007
Last updated: May 24, 2011
Last verified: May 2011
The objective of this project is to further the development of a non-invasive optically based NIR (Near Infrared) device to enable the quantitative diagnosis, monitoring and treatment optimization of chronic wounds (especially diabetic) in a clinical setting. The end goal of this project is a portable and compact device that would be simple to operate by minimally trained health care personnel. Our animal studies have shown that the early healing of chronic wounds can be characterized by absorption and scattering of light at near infrared wavelengths ranging from 680 nm to 950 nm. If our project is successful we will be providing the clinician the ability to predict if a wound is healing and if a particular treatment is successful in accelerating healing before any changes are observed by wound size contraction or other visible clinical signs. Our hope is that the fNIR optical device will provide conclusive therapeutic treatment information as early as 5 weeks after initial evaluation, before it would be obvious on gross examination of the patient.

Diabetic Foot Ulcers

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Non-Invasive Assessment of Wound Healing With Optical Methods

Resource links provided by NLM:

Further study details as provided by Drexel University:

Estimated Enrollment: 100
Study Start Date: September 2007


Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

Recruited patients will be patients with diabetes who have chronic wounds and will likely have other co-morbidities associated with chronic diabetes.

Control subjects do not have diabetes and do not have wounds.


Healthy Subject inclusion criteria

  • Subjects must be 18-65 years of age
  • Subjects must have no history of diabetes
  • Subjects must have no history of vascular disease
  • Subjects must have no findings of vascular disease on physical examination
  • Subjects who are not allergic to Tegaderm

Patient Subject inclusion criteria:

  • Subjects must be 18-65 years of age
  • Subjects must have documented diabetes mellitus for at least 6 months.
  • Subjects must have at least one documented chronic wound for a minimum 8 weeks.
  • A chronic wound is defined as any wound that has not healed after 8 weeks and has a minimum surface area of 1cm2. There is no maximum wound size.
  • Wound(s) must be secondary to the complications of diabetes, including vascular disease neuropathy, or both.
  • Wounds must be on the ankles or feet
  • Subjects who are not allergic to Tegaderm


  • Subject must not be <18 or >65 years of age
  • Subjects with major infections, abscesses, or untreated osteomyelitis will be excluded until appropriately treated.
  • Subjects will not be excluded based upon the existence of other co-morbidities associated with chronic diabetes, including retinopathy, nephropathy, peripheral neuropathy, or cardiovascular disease except as follows:
  • Subjects who have moderate to severe vascular insufficiency (defined as ankle brachial index <0.75 or toe-brachial index <0.5)
  • Subjects who are unable to return for weekly follow-up appointments will not be included.
  • Pregnant or lactating people will not be invited to participate.
  • Subjects who are allergic to Tegaderm
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00578604

United States, Pennsylvania
Drexel University College of Medicine Wound Care Center Recruiting
Philadelphia, Pennsylvania, United States, 19102
Contact: Michael S Weingarten, M.D.    215-762-7008   
Sponsors and Collaborators
Drexel University College of Medicine
Principal Investigator: Michael S Weingarten, M.D. Drexel University College of Medicine
  More Information

Responsible Party: Michael S. Weingarten, M.D., Drexel University College of Medicine Identifier: NCT00578604     History of Changes
Other Study ID Numbers: 17035
Study First Received: December 20, 2007
Last Updated: May 24, 2011

Additional relevant MeSH terms:
Diabetic Foot
Foot Ulcer
Diabetic Angiopathies
Vascular Diseases
Cardiovascular Diseases
Leg Ulcer
Skin Ulcer
Skin Diseases
Diabetes Complications
Diabetes Mellitus
Endocrine System Diseases
Diabetic Neuropathies
Foot Diseases processed this record on March 24, 2017