Clinical trial Recruiting at 4 sites Phase 4 Interventional Ages 18 and up

Reducing surgical site infections after colon or small bowel surgery

Official title: Decolonization to Reduce After-Surgery Events of Surgical Site Infection

Run by University of California, Irvine · NCT05586776 · Data updated 2026-11-12

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
Ages18 Years and up
SexAll
Enrollment2700 (estimated)
SponsorUniversity of California, Irvine
Academic / other
Locations4 sites (Newport Beach, California and 3 other locations)
StatusRecruiting
StartedJanuary 17, 2023
Main results expectedJune 2027
Study endsDecember 2027
Registry record updatedJuly 21, 2026
Trial IDNCT05586776 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

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

Probably not a fit

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

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

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.

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

Who can join: the full rules

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 it's running

  • Hoag Memorial Hospital Presbyterian
    Newport Beach, California, United States
    Recruiting
  • University of California, Irvine Medical Center
    Orange, California, United States
    Recruiting
  • University of California, Davis Medical Center
    Sacramento, California, United States
    Recruiting
  • University of California, San Francisco Medical Center
    San Francisco, California, United States
    Recruiting

Study contacts

  • Principal investigator: Susan Huang, MD, MPH — University of California, Irvine
  • Study coordinator: Susan Huang, MD, MPH
  • Email: sshuang@hs.uci.edu
  • Phone: (949) 824-5073

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.