Excision Margin clinical trials at University of California Health

The purpose of this research study is to evaluate the efficacy and safety of topical timolol 0.5% for secondary intention wound healing following 1) Mohs micrographic surgery, 2) standard surgical excision, OR 3) electrodesiccation and curettage (ED&C). Please note that healing by secondary intention refers to when a wound heals naturally without surgical closure. To evaluate the efficacy of topical timolol 0.5%, 220 participants will be recruited. Participants will be placed into one of two groups: The treatment group or the control group. 1. The treatment group will receive a topical timolol 0.5% solution, which will be applied to their wound daily for 12 weeks. 2. The control group will receive standard care with the addition of hydrogel, which will also be applied to their wound daily for 12 weeks. During this 12-week period, both groups will be required to upload photos of their wound healing to their MyChart account at weeks 3, 6, 9, and 12. These photos will be reviewed by the investigator to assess wound healing. Re-epithelialization and earlier complete wound healing will be compared between both groups to determine the efficacy of topical timolol 0.5% solution compared to the standard of care.