In Vivo Efficacy Study of Patient Preoperative Preps

Assessment of the Antimicrobial Efficacy of 3M CHG/IPA Preoperative Skin Preparation Against Resident Human Skin Flora on the Abdominal and Inguinal Regions

The objective of this study is to demonstrate the antimicrobial efficacy of the 3M CHG/IPA Prep on skin flora of the abdominal and inguinal regions of human subjects.

The primary efficacy is evaluated by demonstration that the product provides a lower bound of the 95% confidence interval of percent responders that is greater than or equal to 70% On the abdominal site, a responder is defined as a subject with a 2-log10/cm2 bacterial reduction at 10 minutes and for whom the skin flora does not return to baseline at 6 hours.

On the inguinal site, a responder is defined as a subject with a 3-log10/cm2 bacterial reduction at 10 minutes and for whom the skin flora does not return to baseline at 6 hours.

Inclusion Criteria:

• Subjects of any race
• Subjects in good health
• Minimum skin flora baseline requirements on abdomen and groin

Exclusion Criteria:

• Any tattoos, scars, breaks in the skin, or any form of dermatitis, or other skin disorders (including acne) on the applicable test area
• Topical antimicrobial exposure within 14 days prior to screening and treatment days
• Use of systemic or topical antibiotics, steroid medications, or any other products known to affect the normal microbial flora of the skin within 14 days prior to screening and treatment days