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Wound Edge Changes Following Treatment With Santyl

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: NCT01197898
Recruitment Status : Completed
First Posted : September 9, 2010
Results First Posted : May 30, 2013
Last Update Posted : May 30, 2013
Information provided by (Responsible Party):

Brief Summary:
The goal of this study is to evaluate changes in the healing tissue of diabetic foot wounds following 14 days of treatment with Santyl or its vehicle base.

Condition or disease Intervention/treatment Phase
Diabetic Foot Ulcers Diabetic Foot Wounds Biological: Collagenase Santyl Ointment Other: Placebo Comparator Phase 4

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 10 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Evaluation of the Edge of Non-Healing Cutaneous Ulcers Following Debridement With Collagenase Santyl Ointment
Study Start Date : December 2010
Actual Primary Completion Date : April 2012
Actual Study Completion Date : October 2012

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Collagenase Santyl
Ointment applied once daily
Biological: Collagenase Santyl Ointment
Topical daily application

Placebo Comparator: Vehicle Base
Applied once daily
Other: Placebo Comparator
Topical daily application

Primary Outcome Measures :
  1. Change From Baseline in Extent of Presence/Absence of Epithelial Tongue. [ Time Frame: 28 Days ]
    The results were found to be inconclusive due to the small number of biopsy specimens of sufficient quality for analysis. Four of the 10 subjects enrolled were not evaluable due to poor biopsy quality.

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

To be eligible for the study, subjects must meet the following inclusion criteria:

  • Subjects should be presenting for the first time with a complaint of a non-healing wound, or may have failed one or more prior inadequate therapies. To improve homogeneity in the group studied, subjects with large wounds, complicated wounds, wounds of long duration, or who have failed multiple attempts at healing in which additional known critical variables were addressed (debridement, off loading, wound moisture control, wound infection control, blood glucose control, and/or adequate local blood supply) will be excluded.
  • Provide written informed consent.
  • Subjects 18 years of age or older, of either sex and of any race, with an existing diagnosis of Type I or Type II Diabetes Mellitus.
  • Presenting for the first time with a complaint of a non-healing wound, or may have failed one or more prior inadequate therapies but not including therapies generally reserved for chronic wounds (i.e., debridement, off loading, wound moisture control, wound infection control, blood glucose control, and/or adequate local blood supply).
  • Willing to attend all required study visits, and in the opinion of the Investigator, able to properly follow instructions regarding daily dressing changes (dressing changes may be done by a third party, who must agree to perform these daily).
  • Body Mass Index less than or equal to 40
  • A foot wound which meets the following criteria:

    • Time since initial skin breakdown 56 - 112 days
    • Wagner† Grade 1
    • Area between 0.75 and 3.0 cm2, inclusive
    • Located on plantar surface of midfoot or forefoot, dorsum of foot, or a post-amputation wound
    • Non-infected based on clinical assessment
  • Adequate blood supply to the affected foot, defined as meeting a transcutaneous oxygen pressure(TcPO2) measured using standard technique and within 4 cm of the wound of greater than or equal to 35 mmHg.
  • Blood chemistry and hematology values as follows, using local lab normal ranges unless otherwise specified:

    • Blood Glycated Hemoglobin (HbA1C) 6.5 - 10.5%
    • Blood Glucose less than or equal to 180 mg/dL
    • Blood Hemoglobin, Hematocrit, Red Blood Cell count within normal limits
    • Serum Sodium, Potassium, Calcium, Phosphorus, Carbon Dioxide (CO2) within normal limits
    • Serum Albumin greater than or equal to 2.0 g/dL, serum Pre-Albumin greater than or equal to 15 mg/dL
    • Alanine Transaminase (ALT), Aspartate Transaminase (AST), Gamma Glutamyl Transpeptidase (GGT) less than or equal to 2.0 x Upper Limit of Normal (ULN)
    • Blood Urea Nitrogen, Total Bilirubin, Creatinine less than or equal to 1.5 x ULN
  • Wound is able to be off-loaded, if indicated. † Wagner Grade 1 = Superficial ulcer, partial or full-thickness, but not involving underlying fat, fascia, tendon, muscle or bone.

Exclusion Criteria:

Subjects meeting any of the following criteria during the screening period will be excluded from the study:

  • Contraindications or hypersensitivity to the use of the study medications or their components
  • Therapy with another investigational agent within thirty (30) days of Visit 1.
  • Calluses or maceration of periwound area which would interfere with successful biopsy of the wound edge.
  • Undermining or tunneling of the target wound.
  • Evidence of osteomyelitis on screening roentgenogram of the target foot.
  • Coagulation defect or bleeding disorder which, in the opinion of the Investigator, will make the biopsy procedures too risky.
  • The Medical Monitor may declare any subject ineligible for a valid medical reason.

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): NCT01197898

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United States, Arizona
Associated Foot and Ankle Specialists
Phoenix, Arizona, United States, 85015
Sponsors and Collaborators
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Study Chair: Herbert B Slade, MD Healthpoint
Principal Investigator: Art J Tallis, DPM Associated Foot & Ankle Specialists
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Responsible Party: Healthpoint Identifier: NCT01197898    
Other Study ID Numbers: 017-101-09-029
First Posted: September 9, 2010    Key Record Dates
Results First Posted: May 30, 2013
Last Update Posted: May 30, 2013
Last Verified: April 2013
Keywords provided by Healthpoint:
Additional relevant MeSH terms:
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Diabetic Foot
Foot Ulcer
Pathologic Processes
Diabetic Angiopathies
Vascular Diseases
Cardiovascular Diseases
Leg Ulcer
Skin Ulcer
Skin Diseases
Diabetes Complications
Diabetes Mellitus
Endocrine System Diseases
Diabetic Neuropathies
Foot Diseases