Effect of Collagenase on Healing and Scarring

A Randomized, Double-blind, Paired-Comparison of the Effect of Collagenase Santyl® Ointment on Healing and Scarring Characteristics of 600μm Dermatome Wounds

A study to compare the rate of complete wound closure and quality of resulting scar at 3, 6 and 9 months, between dermatome-induced skin wounds treated with Collagenase Santyl Ointment versus vehicle alone.

Inclusion Criteria:

1. Provide written informed consent
2. Willing to attend all required study visits

Exclusion Criteria:

1. Known hypersensitivity to Clostridial collagenase
2. Anticoagulants (blood thinners, including aspirin) within two weeks
3. Congenital skin disorder which affects keratinocytes, elastin, or collagen
4. Any dermatologic disease which may be aggravated or provoked by the wounding procedure
5. Dark skin pigmentation to a degree which is very likely to obscure the assessment of vascularization post-wounding
6. At risk of keloid or hypertrophic scar formation
7. Scars, tattoos or deformities (i.e., contractures) on the inner aspect of the upper arm area where the wound will be placed
8. Any skin disorder which causes delayed healing
9. Disrupted lymphatic drainage of the arm to be studied, or previously diagnosed thoracic outlet syndrome
10. Taking concomitant medications at doses which are known to interfere with healing, such as non-steroidal anti-inflammatory drugs, anti-neoplastic drugs, or immunosuppressive drugs