A Study to Look at the Effects of Four Weeks of Treatment on the Healing of Diabetic Foot Ulcers

NCT01143714 | Completed Phase 4 Results

• 1 other identifier: 017-101-09-024
• Study Type: interventional
• Target: 57
• Locations: 1 country
• Sites: 6

Brief Summary

The purpose of this study is to assess the effect of four weeks of treatment with Santyl Ointment, compared to White Petrolatum, on the change from baseline in wound area of diabetic foot ulcers over four weeks, and on the proportion of subjects achieving complete wound closure within 12 weeks from initiation of treatment.

Conditions

Diabetic Foot Ulcers

Outcome Measures

Primary Outcomes (1)

• Change in Wound Area

  The primary efficacy endpoint was the percent change in wound area from baseline to completion of the 4-week treatment phase and the 8-week follow-up period

  4 Weeks

Secondary Outcomes (1)

• Number of Sharp Debridements Performed During the 4-week Treatment Phase and the 8-week Follow-up Period (12 Weeks Total)

  12 weeks

Study Arms (2)

A

ACTIVE COMPARATOR

Drug: Santyl

B

PLACEBO COMPARATOR

Other: White Petrolatum

Interventions

Santyl DRUG

Apply an amount sufficient (thickness of a nickel) to cover the wound area. It will be applied once daily during the treatment phase, up to four weeks.

A

White Petrolatum OTHER

Apply an amount sufficient (thickness of a nickel) to cover the wound area. It will be applied once daily during the treatment phase, up to four weeks.

B

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• The informed consent document Photography Release must be read, signed, and dated by the subject or the subject's legally authorized representative before conducting any study procedures or exams. In addition, the informed consent document must be signed and dated by the individual who consents the subject before conducting the screening visit. A photocopy of the signed informed consent document must be provided to the subject, and the original signed document placed in the subject's chart.
• Age 18 years and older. Subjects may be of either sex and of any race or skin type.
• Women of child-bearing potential (those who are not premenarchal, not surgically sterilized \[hysterectomy or bilateral oophorectomy\], or not post-menopausal) may participate in the study if they meet all of the following conditions:
• they are not breast feeding
• undertake an HCG serum pregnancy test, which must be negative
• they do not intend to become pregnant during the study
• they are using adequate birth control methods and they agree to continue using those methods for the duration of the study
• Post-menopausal is defined as no period in the previous 12 months Adequate birth control methods are defined as: hormonal-topical, oral, implantable or injectable contraceptives; mechanical-spermicide in conjunction with a barrier such as a condom or diaphragm; IUD; or, surgical sterilization of partner. For non-sexually active females, abstinence may be regarded as an adequate method of birth control; however, if the subject becomes sexually active during the study, she must agree to use an adequate birth control method as described above for the remainder of the study.
• NOTE: Women who have had a bilateral tubal ligation are not considered to have been surgically sterilized and must agree to the conditions as specified above.
• Willing to make all required study visits and to use the Darco shoe off-loading device and insole.
• Able to follow instructions, particularly regarding the application of test articles and dressings at home. Able to apply the test article, or has a caregiver available to apply the test article according to the protocol.
• Have a diabetic foot ulcer, Wagner Grades† 1 or 2, on the plantar surface of the foot.
• Target ulcer present for at least 28 days, but no longer than 18 months, and has failed to close by ≥ 40% during the first 4 weeks of therapy administered during the past 4 to 8 weeks.
• Target ulcer area between 2 and 15 cm², post debridement, if required. 9- Adequate arterial blood flow as evidenced by an ankle brachial index (ABI) of \> 0.7 and ≤ 1.1; if the ABI is greater than 1.1, then a toe pressure of \> 30 mmHg OR a TcPO2 ≥ 40 mmHg; either secondary measure is acceptable, but if both are obtained, each must meet its respective cutoff.
• \. Reasonable control of blood glucose, as evidenced by a serum HbA1C ≤ 12% at screening.

You may not qualify if:

• Contraindications or known hypersensitivity to the test articles or their components.
• Therapy with another investigational agent within 30 days, lower extremity angioplasty within 4 weeks, untreated osteomyelitis, or chemotherapy or radiation therapy within 5 years prior to screening.
• Prior therapy of the target wound with Santyl.
• Current therapy with systemic antibiotics to treat a foot ulcer, or prescription topical antibiotics on the target ulcer.
• Target ulcer located over the heel (talus, distal calcaneous, navicular, or cuboid).
• Fracture of bones in the target ulcer foot occurring within the past 3 months.
• Cellulitis or abscess of the target ulcer foot.
• A positive result from the screening Quantitative Bacteriology (Qbac) biopsy. A wound will be considered infected if the laboratory findings reveal ≥ 106 colony forming units (cfu) per gram of tissue or \> 1 beta-hemolytic Streptococcus per gram of tissue.
• Target ulcer tunneling, per probing.
• More than three DFU on the target foot. The target ulcer must be at least 2 cm from another ulcer.
• Concomitant severe burn, immunodeficiency disorder, hematologic disorder, or malignancy (other than non-melanoma skin cancer) beyond the in situ stage.
• Abnormal laboratory values that, in the opinion of the Principal Investigator, place the subject at risk for the study.
• Positive serum HCG pregnancy test.
• The Medical Monitor may declare any subject ineligible for a valid procedural or medical reason.

Sponsors & Collaborators

• Healthpoint: lead

Study Sites (6)

Olive View - UCLA Medical Center

Sylmar, California, 91342, United States

Location

Northwestern University Feinberg School of Medicine

Chicago, Illinois, 60154, United States

Location

Boston Medical Center

Boston, Massachusetts, 02118-2309, United States

Location

The Foot and Ankle Institute of Western Pennsylvania

Pittsburgh, Pennsylvania, 15224, United States

Location

Center for Advanced Wound Care

Wyomissing, Pennsylvania, 19610, United States

Location

Complete Family Foot Care

McAllen, Texas, 98501, United States

Location

MeSH Terms

Conditions

Diabetic Foot

Interventions

Collagenases; Petrolatum

Condition Hierarchy (Ancestors)

Diabetic Angiopathies; Vascular Diseases; Cardiovascular Diseases; Foot Ulcer; Leg Ulcer; Skin Ulcer; Skin Diseases; Skin and Connective Tissue Diseases; Diabetes Complications; Diabetes Mellitus; Endocrine System Diseases; Diabetic Neuropathies

Intervention Hierarchy (Ancestors)

Metalloendopeptidases; Endopeptidases; Peptide Hydrolases; Hydrolases; Enzymes; Enzymes and Coenzymes; Metalloproteases; Hydrocarbons; Organic Chemicals

Results Point of Contact

• Title: Jaime E. Dickerson, PhD; Sr. Director Clinical Affairs
• Organization: Healthpoint, Ltd.

jaime.dickerson@healthpoint.com

817-302-3914

Study Officials

• Herbert B Slade, MD

  Healthpoint

  STUDY CHAIR

Publication Agreements

• PI is Sponsor Employee: No
• Restriction Type: OTHER
• Restrictive Agreement: Yes

Study Design

• Study Type: interventional
• Phase: phase 4
• Allocation: RANDOMIZED
• Masking: TRIPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, INVESTIGATOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: June 11, 2010
• First Posted: June 14, 2010
• Study Start: June 1, 2010
• Primary Completion: April 1, 2012
• Study Completion: October 1, 2012
• Last Updated: May 6, 2013
• Results First Posted: May 3, 2013

Record last verified: 2013-05

Locations

US (6)