Reducing surgical site infections after colon or small bowel surgery

Decolonization to Reduce After-Surgery Events of Surgical Site Infection

Phase 4 Interventional University of California, Irvine · NCT05586776

This study is testing whether using special washes and ointments can help prevent infections after colon or small bowel surgery for patients who have just been discharged from the hospital.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment2700 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of California, Irvine Academic / other
Locations4 sites (Newport Beach, California and 3 other locations)
Trial IDNCT05586776 on ClinicalTrials.gov

What this trial studies

The DECREASE SSI Trial aims to reduce post-discharge surgical site infections (SSIs) in patients who have undergone open colon or small bowel surgery. This multi-center, randomized clinical trial will compare the effectiveness of chlorhexidine bathing and nasal mupirocin against a placebo treatment over a 30-day period following discharge. With 2,700 participants, the study seeks to identify simple and effective interventions to enhance patient care and outcomes for the 675,000 patients who undergo these surgeries annually.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older who have had recent open abdominal surgery within the past 14 days.

Not a fit: Patients who are allergic to mupirocin or chlorhexidine, or those with active infections at enrollment, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could significantly lower the incidence of surgical site infections, improving recovery and reducing healthcare costs for patients.

How similar studies have performed: Previous studies have shown promising results with similar decolonization approaches, indicating potential for success in this trial.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 18 years of age or older
* Recent open (not solely laparoscopic) surgery involving an abdominal incision within the past 14 days. For cesarean section, recruitment restricted to BMI ≥ 40.
* Able to communicate regularly by phone
* Able to bathe, shower or have this task performed by a caregiver

Exclusion Criteria:

* Transfer to an acute care hospital
* Discharged to receive end-of-life hospice measures
* Discharged more than 14 days after surgery
* Allergic to mupirocin and/or chlorhexidine
* Active infection at enrollment\*

  \*Refers to
  1. Infections requiring systemic antibacterial agents, so viral illness (e.g., COVID, flu) is not an exclusion.
  2. Topical antibacterial agents do not count toward exclusion (e.g., topical products for acne)
  3. Prophylactic antibacterial agents do not count toward exclusion
* Surgical incision not closed at discharge

Where this trial is running

Newport Beach, California and 3 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Surgical Site InfectionSSI
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.