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CompletedNCT01481935Updated Feb 16, 2022Results posted

Enhanced Room Cleaning in Intensive Care Units to Reduce Gown and Glove Contamination With Multi-drug-resistant Bacteria

An interventional study of Enhanced cleaning of surfaces in ICU rooms and Sham enhanced cleaning of surfaces in ICU rooms in Infection Control, sponsored by University of Maryland, Baltimore. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-02-16.

Sponsored by University of Maryland, Baltimore · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
190
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

The purpose of this study is to determine whether extra cleaning of frequently-contaminated surfaces in intensive care rooms is effective in preventing contamination of disposable isolation gowns and gloves with multi-drug resistant bacteria.

Read the detailed description

Hospital infections are often caused by bacteria such as methicillin-resistant Staphylococcus aureus (MRSA) or multi-drug-resistant Acinetobacter baumannii (MDRAB). Hospital infections increase the cost of health care, length of hospital stay, and mortality compared to infections with antibiotic-susceptible organisms. Many of these antibiotic-resistant bacteria are transmitted by patient-to-patient contact.

Healthcare workers are one possible vector of patient-to-patient transmission. Transient colonization of hands, clothing and protective equipment can leads to the colonization and infection of other patients. The surfaces of patient rooms are also frequently contaminated with antibiotic-resistant bacteria. A number of recent studies have concluded that patient rooms are not cleaned thoroughly or frequently enough to keep commonly touched surfaces free of bacterial contamination. Given the frequency of contact between the healthcare worker and the patient's environment, bacteria that contaminate environmental surfaces while the patient is in the room are a significant potential reservoir for patient-to-patient transmission via the hands of healthcare workers.

In this study, the investigators will examine rooms of intensive care unit patients colonized with MRSA or MDRAB. The investigators will randomize these rooms to receive either standard room cleaning plus a cleaning of high-touch surfaces ('enhanced cleaning') or to receive only standard room cleaning plus a sham cleaning of high-touch surfaces ('sham enhanced cleaning'). The investigators will then culture healthcare workers' disposable isolation gowns and gloves as they exit the enrolled room after routine patient care activities. The investigators will examine the cultures for the presence of MRSA or MDRAB to determine whether additional cleaning significantly reduces the proportion of healthcare workers with contaminated gloves and gowns, and therefore may reduce the risk of transmitting these bacteria to other patients. The results of this trial will help guide future efforts to decrease patient-to-patient transmission of antibiotic-resistant bacteria.

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Conditions studied

  • Infection Control

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Keywords

  • Antibiotic resistant bacteria
  • Colonization
  • Hospital cleaning
  • Environmental cleaning
  • Infection Control
03

In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's enrollment of 190 is above the median of 120 across 4,200 interventional studies indexed under Infections.

Browse Infections studies →

Lead sponsor

University of Maryland, Baltimore is the lead sponsor of 687 studies on the registry; 130 are open to participants now.

Of its 90 completed or terminated interventional studies of FDA-regulated products, 63 (70%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Room is occupied by a patient colonized with methicillin-resistant Staphylococcus aureus and/or multi-drug-resistant Acinetobacter baumannii
  • Occupant of the room is on contact precautions
  • Occupant was admitted to the room at least 24 hours prior to the time of screening

Exclusion criteria

Exclusion Criteria:

  • Room is occupied by a patient who occupied another room at the time it was enrolled and followed.
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Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Care provider)
Enrollment
190 participants (actual)

Study arms

  • Experimental
    Enhanced Cleaning

    Rooms in the Enhanced Cleaning arm will receive cleaning of frequently contaminated surfaces by a study researcher in addition to standard room cleaning by hospital housekeeping staff.

    Other: Enhanced cleaning of surfaces in ICU rooms

  • Sham comparator
    Sham Enhanced Cleaning

    Rooms in the Sham Enhanced Cleaning arm will receive a sham cleaning of frequently contaminated surfaces by a study researcher in addition to standard room cleaning by hospital housekeeping staff.

    Other: Sham enhanced cleaning of surfaces in ICU rooms

Interventions

  • OtherEnhanced cleaning of surfaces in ICU rooms

    Using a paper towel pre-soaked with a commercially-available quaternary ammonium cleaning solution (Virex WetTask wipes, Kimberly-Clark, Irving, Texas), the following surfaces will be wiped clean by a study investigator if present: bed rail top bar, bed electronic control surfaces, moveable tray table top and control surfaces desktop and sides, IV poles, infusion pump control surfaces, nurse call button, patient telephone/remote control, sink console top, light switches and plates, supply cart top and drawer handles, ventilator control surfaces and desk, vital signs monitor control surfaces. Cleaning will occur once on the day of enrollment and follow-up.

    Also known as: Environmental cleaning

  • OtherSham enhanced cleaning of surfaces in ICU rooms

    While holding a paper towel pre-soaked with a commercially-available quaternary ammonium cleaning solution (Virex WetTask wipes, Kimberly-Clark, Irving, Texas), a study investigator will mime the action of wiping the following surfaces in the room clean if present: bed rail top bar, bed electronic control surfaces, moveable tray table top and control surfaces desktop and sides, IV poles, infusion pump control surfaces, nurse call button, patient telephone/remote control, sink console top, light switches and plates, supply cart top and drawer handles, ventilator control surfaces and desk, vital signs monitor control surfaces. The sham cleaning will occur once on the day of enrollment and follow-up.

    Also known as: Sham Environmental Cleaning

06

What researchers measure

Primary outcomes

  1. Contamination of Disposable Isolation Gown and Gloves With Methicillin-resistant Staphylococcus Aureus or Multi-drug-resistant Acinetobacter Baumannii

    Swabs will be collected from the disposable gown and gloves of healthcare workers exiting the enrolled room. A single swab will be used for both gloves and the gown. The swab will be assayed for methicillin-resistant Staphylococcus aureus, multi-drug-resistant Acinetobacter baumannii, or both, depending on which organism(s) the occupant of the enrolled room is colonized with. The swab will be considered positive if the relevant organism is isolated. We will sample the first 15 healthcare worker exits after the room has received the allocated intervention.

    Time frame: As a healthcare worker exits the enrolled room (1 day)

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Results

Posted Oct 19, 2012

Participant flow

Rooms in 4 ICUs in a large, urban, academic hospital. Recruitment began on 7/21/2011 and ended on 5/20/2012.

Participant flow — Overall Study
MilestoneSham Enhanced CleaningEnhanced Cleaning
Started9793
Completed9793
Not completed00

Outcome measures

PrimaryContamination of Disposable Isolation Gown and Gloves With Methicillin-resistant Staphylococcus Aureus or Multi-drug-resistant Acinetobacter Baumannii

Swabs will be collected from the disposable gown and gloves of healthcare workers exiting the enrolled room. A single swab will be used for both gloves and the gown. The swab will be assayed for methicillin-resistant Staphylococcus aureus, multi-drug-resistant Acinetobacter baumannii, or both, depending on which organism(s) the occupant of the enrolled room is colonized with. The swab will be considered positive if the relevant organism is isolated. We will sample the first 15 healthcare worker exits after the room has received the allocated intervention.

Time frame:
As a healthcare worker exits the enrolled room (1 day)
Reported as:
Mean · percentage of positive cultures
Contamination of Disposable Isolation Gown and Gloves With Methicillin-resistant Staphylococcus Aureus or Multi-drug-resistant Acinetobacter Baumannii
percentage of positive culturesSham Enhanced CleaningEnhanced Cleaning
Contamination of Disposable Isolation Gown and Gloves With Methicillin-resistant Staphylococcus Aureus or Multi-drug-resistant Acinetobacter Baumannii20.5 ± 2.117.2 ± 2.5

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Sham Enhanced Cleaning—0/97 (0%)0/97 (0%)
Enhanced Cleaning—0/93 (0%)0/93 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Enhanced CleaningSham Enhanced CleaningTotal
<=18 years000
Between 18 and 65 years6666132
>=65 years273158
Age, Continuous
Age, Continuous(years)Enhanced CleaningSham Enhanced CleaningTotal
Mean51 ± 1956 ± 1754 ± 18
Sex: Female, Male
Sex: Female, Male(Participants)Enhanced CleaningSham Enhanced CleaningTotal
Female304171
Male6356119
Region of Enrollment
Region of Enrollment(participants)Enhanced CleaningSham Enhanced CleaningTotal
United States9397190
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Study locations

1 site
  • University of Maryland, Baltimore
    Baltimore, Maryland 21230, United States
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References and documents

Publications

  • Carling PC, Von Beheren S, Kim P, Woods C; Healthcare Environmental Hygiene Study Group. Intensive care unit environmental cleaning: an evaluation in sixteen hospitals using a novel assessment tool. J Hosp Infect. 2008 Jan;68(1):39-44. doi: 10.1016/j.jhin.2007.09.015. Epub 2007 Dec 11. PubMed 18069083 ↗
  • Goodman ER, Platt R, Bass R, Onderdonk AB, Yokoe DS, Huang SS. Impact of an environmental cleaning intervention on the presence of methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci on surfaces in intensive care unit rooms. Infect Control Hosp Epidemiol. 2008 Jul;29(7):593-9. doi: 10.1086/588566. PubMed 18624666 ↗
  • Morgan DJ, Liang SY, Smith CL, Johnson JK, Harris AD, Furuno JP, Thom KA, Snyder GM, Day HR, Perencevich EN. Frequent multidrug-resistant Acinetobacter baumannii contamination of gloves, gowns, and hands of healthcare workers. Infect Control Hosp Epidemiol. 2010 Jul;31(7):716-21. doi: 10.1086/653201. PubMed 20486855 ↗
  • Carling PC, Bartley JM. Evaluating hygienic cleaning in health care settings: what you do not know can harm your patients. Am J Infect Control. 2010 Jun;38(5 Suppl 1):S41-50. doi: 10.1016/j.ajic.2010.03.004. PubMed 20569855 ↗
  • Boyce JM, Potter-Bynoe G, Chenevert C, King T. Environmental contamination due to methicillin-resistant Staphylococcus aureus: possible infection control implications. Infect Control Hosp Epidemiol. 1997 Sep;18(9):622-7. PubMed 9309433 ↗
  • Snyder GM, Thom KA, Furuno JP, Perencevich EN, Roghmann MC, Strauss SM, Netzer G, Harris AD. Detection of methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci on the gowns and gloves of healthcare workers. Infect Control Hosp Epidemiol. 2008 Jul;29(7):583-9. doi: 10.1086/588701. PubMed 18549314 ↗
  • Wilson AP, Smyth D, Moore G, Singleton J, Jackson R, Gant V, Jeanes A, Shaw S, James E, Cooper B, Kafatos G, Cookson B, Singer M, Bellingan G. The impact of enhanced cleaning within the intensive care unit on contamination of the near-patient environment with hospital pathogens: a randomized crossover study in critical care units in two hospitals. Crit Care Med. 2011 Apr;39(4):651-8. doi: 10.1097/CCM.0b013e318206bc66. PubMed 21242793 ↗
  • Hess AS, Shardell M, Johnson JK, Thom KA, Roghmann MC, Netzer G, Amr S, Morgan DJ, Harris AD. A randomized controlled trial of enhanced cleaning to reduce contamination of healthcare worker gowns and gloves with multidrug-resistant bacteria. Infect Control Hosp Epidemiol. 2013 May;34(5):487-93. doi: 10.1086/670205. PubMed 23571365 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 16, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01481935
Lead sponsor
University of Maryland, Baltimore
Responsible party
Anthony Harris (Professor, Department of Epidemiology and Public Health, University of Maryland, Baltimore) — Principal investigator
First posted
Nov 30, 2011
Start date
Aug 2011
Primary completion
May 2012
Completion
May 2012
Results posted
Oct 19, 2012
Last update
Feb 16, 2022

Study contacts

Anthony D Harris, MD MPH
principal investigator · University of Maryland, Baltimore

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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