Trial Outcomes & Findings for Mupirocin-Iodophor ICU Decolonization Swap Out Trial (NCT NCT03140423)

NCT ID: NCT03140423

Last Updated: 2025-03-30

Results Overview

Methicillin-resistant Staphylococcus aureus (MRSA) and Methicillin-susceptible Staphylococcus aureus (MSSA) clinical cultures attributable to participating ICUs. Defined as occurring \>2 days into a participating ICU stay through 2 days following ICU discharge. NOTE: this outcome is intended for the primary manuscript.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

353323 participants

Primary outcome timeframe

18-month intervention

Results posted on

2025-03-30

Participant Flow

137 out of 178 HCA Healthcare hospitals were recruited for this trial of adult ICUs. There was an 18-month intervention period from November 1, 2017 through April 30, 2019.

353,323 patients were involved in the intervention period among adult ICUs from the 137 participating hospitals.

Unit of analysis: Hospitals

Participant milestones

Participant milestones
Measure
Arm 1: Routine Care (Mupirocin/CHG)
ICU nasal decolonization with mupirocin twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 1. Routine Care (Mupirocin/CHG): The intervention / decolonization regimen will consist of 5 days of topical intranasal mupirocin ointment (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Arm 2: Iodophor/CHG Decolonization
ICU nasal decolonization with iodophor twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 2. Iodophor/CHG Decolonization: The intervention / decolonization regimen will consist of 5 days of topical intranasal iodophor (10% povidone-iodine nasal swabs) (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Overall Study
STARTED
168301 68
185022 69
Overall Study
COMPLETED
168301 66
185022 68
Overall Study
NOT COMPLETED
0 2
0 1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Overall number of participants reflect participants during the Intervention period.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Arm 1: Routine Care (Mupirocin/CHG)
n=168301 Participants
ICU nasal decolonization with mupirocin twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 1. Routine Care (Mupirocin/CHG): The intervention / decolonization regimen will consist of 5 days of topical intranasal mupirocin ointment (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Arm 2: Iodophor/CHG Decolonization
n=185022 Participants
ICU nasal decolonization with iodophor twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 2. Iodophor/CHG Decolonization: The intervention / decolonization regimen will consist of 5 days of topical intranasal iodophor (10% povidone-iodine nasal swabs) (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Total
n=353323 Participants
Total of all reporting groups
Age, Continuous
Age
66.0 years
n=168301 Participants • Overall number of participants reflect participants during the Intervention period.
66.0 years
n=185022 Participants • Overall number of participants reflect participants during the Intervention period.
66.0 years
n=353323 Participants • Overall number of participants reflect participants during the Intervention period.
Sex/Gender, Customized
Sex · Female
78074 Participants
n=168219 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
85194 Participants
n=184950 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
163268 Participants
n=353169 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
Sex/Gender, Customized
Sex · Male
90145 Participants
n=168219 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
99756 Participants
n=184950 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
189901 Participants
n=353169 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
Race/Ethnicity, Customized
Race · Black or African American
21901 Participants
n=155666 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
27776 Participants
n=171982 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
49677 Participants
n=327648 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
Race/Ethnicity, Customized
Race · White
126749 Participants
n=155666 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
135060 Participants
n=171982 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
261809 Participants
n=327648 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
Race/Ethnicity, Customized
Race · Other
7016 Participants
n=155666 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
9146 Participants
n=171982 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.
16162 Participants
n=327648 Participants • Small differences in the number of patients with various characteristics reflect missing data in the electronic health record.

PRIMARY outcome

Timeframe: 18-month intervention

Population: The total number of participants analyzed reported here is from the intervention period.

Methicillin-resistant Staphylococcus aureus (MRSA) and Methicillin-susceptible Staphylococcus aureus (MSSA) clinical cultures attributable to participating ICUs. Defined as occurring \>2 days into a participating ICU stay through 2 days following ICU discharge. NOTE: this outcome is intended for the primary manuscript.

Outcome measures

Outcome measures
Measure
Arm 1: Routine Care (Mupirocin/CHG)
n=168301 Participants
ICU nasal decolonization with mupirocin twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 1. Routine Care (Mupirocin/CHG): The intervention / decolonization regimen will consist of 5 days of topical intranasal mupirocin ointment (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Arm 2: Iodophor/CHG Decolonization
n=185022 Participants
ICU nasal decolonization with iodophor twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 2. Iodophor/CHG Decolonization: The intervention / decolonization regimen will consist of 5 days of topical intranasal iodophor (10% povidone-iodine nasal swabs) (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Number of Participants With ICU-attributable Staphylococcus Aureus Clinical Cultures
2708 participants
3563 participants

SECONDARY outcome

Timeframe: 18-month intervention

Population: The total number of participants analyzed reported here is from the intervention period.

Methicillin-resistant Staphylococcus aureus (MRSA) clinical cultures attributable to participating ICUs. Defined as occurring \>2 days into a participating ICU stay through 2 days following ICU discharge. NOTE: this outcome is intended for the primary manuscript.

Outcome measures

Outcome measures
Measure
Arm 1: Routine Care (Mupirocin/CHG)
n=168301 Participants
ICU nasal decolonization with mupirocin twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 1. Routine Care (Mupirocin/CHG): The intervention / decolonization regimen will consist of 5 days of topical intranasal mupirocin ointment (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Arm 2: Iodophor/CHG Decolonization
n=185022 Participants
ICU nasal decolonization with iodophor twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 2. Iodophor/CHG Decolonization: The intervention / decolonization regimen will consist of 5 days of topical intranasal iodophor (10% povidone-iodine nasal swabs) (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Number of Participants With ICU Attributable MRSA Clinical Cultures
1377 participants
1682 participants

SECONDARY outcome

Timeframe: 18-month intervention

Population: The total number of participants analyzed reported here is from the intervention period.

All-cause bloodstream infection attributable to participating ICUs. Defined as occurring \>2 days into a participating ICU stay through 2 days following ICU discharge.Includes subsets of gram positive (GP), gram negative (GN) and fungal (candida) bloodstream infections, as well as key pathogens such as S. aureus (MRSA and MSSA). NOTE: this outcome is intended for the primary manuscript.

Outcome measures

Outcome measures
Measure
Arm 1: Routine Care (Mupirocin/CHG)
n=168301 Participants
ICU nasal decolonization with mupirocin twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 1. Routine Care (Mupirocin/CHG): The intervention / decolonization regimen will consist of 5 days of topical intranasal mupirocin ointment (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Arm 2: Iodophor/CHG Decolonization
n=185022 Participants
ICU nasal decolonization with iodophor twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 2. Iodophor/CHG Decolonization: The intervention / decolonization regimen will consist of 5 days of topical intranasal iodophor (10% povidone-iodine nasal swabs) (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Number of Participants With ICU-attributable Bloodstream Infections
1766 participants
1956 participants

Adverse Events

Arm 1: Routine Care (Mupirocin/CHG)

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Arm 2: Iodophor/CHG Decolonization

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Arm 1: Routine Care (Mupirocin/CHG)
n=168301 participants at risk
ICU nasal decolonization with mupirocin twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 1. Routine Care (Mupirocin/CHG): The intervention / decolonization regimen will consist of 5 days of topical intranasal mupirocin ointment (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Arm 2: Iodophor/CHG Decolonization
n=185022 participants at risk
ICU nasal decolonization with iodophor twice daily for 5 days in the context of chlorhexidine for daily bathing Arm 2. Iodophor/CHG Decolonization: The intervention / decolonization regimen will consist of 5 days of topical intranasal iodophor (10% povidone-iodine nasal swabs) (bilateral nares, twice daily) on ICU admission, in the context of continued daily baths with 2% chlorhexidine cloths.
Skin and subcutaneous tissue disorders
Other (Not Including Serious) Adverse Event
0.00%
0/168301 • 18 Months
There were 2 adverse events, both in the Iodophor-CHG group. One involved mild nasal pruritus, and one involved total body hives requiring treatment. Both resolved on discontinuation of decolonization.
0.00%
2/185022 • Number of events 2 • 18 Months
There were 2 adverse events, both in the Iodophor-CHG group. One involved mild nasal pruritus, and one involved total body hives requiring treatment. Both resolved on discontinuation of decolonization.

Additional Information

Dr. Susan S. Huang, MD, MPH

Division of Infectious Diseases, University of California Irvine School of Medicine

Phone: (714) 456-5047

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place