Utility of Single-dose Oral Antibiotic Prophylaxis in Prevention of Surgical Site Infection in Dermatologic Surgery

Running, not enrolling · Phase 4 · Has a placebo group

Conditions studied: Surgical Site Infection

In brief

The purpose of the study is to assess the effectiveness of a single dose of preoperative antibiotic in reducing surgical site infections in certain dermatological procedures. Patients will undergo surgical excision or Mohs surgery as is clinically indicated and part of usual care. The study will be a double blinded, placebo-controlled clinical trial. Patients meeting inclusion criteria will be assigned to one of three participant categories: 1) patients undergoing repair with skin flap or graft on the nose, 2) patients undergoing repair with skin graft, flap, or wedge resection on the ear, or 3) patients undergoing Mohs surgery with closure or partial closure or surgical excision on the lower extremity below the knee. Within each category, participants will be randomized into one of two groups: group one will receive a preoperative placebo pill and group two will receive preoperative antibiotic prophylaxis (either a single dose of Cephalexin 2g PO or single dose of Clindamycin hydrochloride 600 mg PO if allergy to penicillin or cephalosporin). Patients will followed for 30 days +/- 7 after surgery to evaluate for any surgical site infection.

Key facts

Study ID

NCT04580472

Run by

Carilion Clinic

People needed

574

Starts

2020-10-01

Expected to finish

2026-09-01

Last updated by the study team

2026-03-25

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• 18 years of age or older
• presenting to Carilion Clinic Dermatology and Mohs surgery in Roanoke, VA at Riverside 1
• suspected to undergo a single-staged repair including a skin flap or graft on the nose
• OR suspected to undergo single-staged repair including a skin graft or flap or wedge resection 1 on the ear
• OR undergoing Mohs with closure or partial closure or surgical excision on the lower extremity below the knee

You may not qualify if…

• patients with intellectual or mental impairment affecting ability to give informed consent
• use of any antibiotic (other than intervention) within 48 hours of the surgery suspected infection at time of surgery
• inability to take cephalexin or clindamycin hydrochloride due to allergy or intolerance current inflammatory skin disease affecting the surgical site
• Patients undergoing concurrent surgery to oral or nasal mucosa
• Patients who have had a recent prosthetic joint surgery within two years and have been told they require antibiotic prophylaxis.
• Patients who are currently pregnant, concerned they could be pregnant, actively trying to conceive, or missed last menstrual period that is not explainable by a birth control method.

Where it is running

• Carilion Clinic — Roanoke, Virginia, United States

Full record on ClinicalTrials.gov

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