- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00566306
Influence of a New Polycationic Disinfectant on Clostridium Difficile Incidence and Environmental Colonisation
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Environmental disinfection has been proved to be efficient when controlling epidemics caused by C. difficile. In recent years its epidemiology has changed leading to increased morbidity and mortality in many countries. C. difficile infections are often difficult to treat and reinfections frequently occur. The major concern is a new strain of C. difficile, O27, which produce many times more spores than other types and spreads easily in institutions. Patients who have a C. difficile infection should be kept in contact isolation in hospitals and other institutions.
C. difficile is a spore forming bacteria which is resistant to some normally used disinfectants like alcohol and quats. Spores may remain viable for months in environment. Disinfectants currently in use, like chloramines and glutaralde-hyde, are risk both for workers and to environment because of their corrosive and irritating nature.
Polyhexamethyleneguanidine(PHMG) is a new disinfectant which is effective against microbes including bacteria and bacterial spores, viruses and fungi, safe to people handling it and friendly to environment and surfaces. It has been tested in the laboratory of Helsinki University according to many EN-standards to disinfectants. It can be used as a hand disinfectant, instrument disinfectant and surface disinfectant.
PHMG was introduced in three wards for hand hygiene and environmental disinfection in CDAD patients' rooms. The rooms for showers and toilets were coated with biocide coating (PHMG) as well as bed frames in investigational wards. Three wards were control wards and continued using alcohol based hand disinfectants and routine environmental cleaning and disinfection with quats/chloramines. After 6 month's intervention period, the incidence of CDAD cases were compared to that during the preceeding 10 months. Surveillance for environmental and HCWs´ hand contamination by C. difficile were performed by taking microbiological samples both from environmental sites and hands twice before intervention and then twice in month within intervention period.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria: ( classified as a HCF-onset, HCF-associated CDAD )
- toxin or culture positive C difficile
- symptom onset more than 72 hours after admission to hospital
- symptom onset less than 4 weeks after discharge
Exclusion Criteria:
- recurrence of CDAD within 8 weeks
- symptom onset before admission to hospital or less than 72 hours after admission to hospital
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: A
PHMG will be introduced in three wards for hand hygiene and environmental disinfection in CDAD patients' rooms.
The rooms for showers and toilets will be coated with biocide coating (PHMG) as well as bed frames in investigational wards.
|
6 months in 3 experimental wards
Other Names:
|
No Intervention: B
Three wards will be control wards and continue using alcohol based hand disinfectants and routine environmental cleaning and disinfection with quats/chloramines.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Clinical: C. difficile infections on study wards. Microbiologic: C difficile colonization.
Time Frame: 2/07-5/08
|
2/07-5/08
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Economical: to evaluate cost of C difficile infection
Time Frame: 2/07-5/08
|
2/07-5/08
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Mari Kanerva, MD,PhD, Helsinki University Central Hospital, Department of Medicine, Division of Infectious Diseases
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 231109
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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