A randomized clinical trial comparing nitrofurazone-coated and uncoated urinary catheters in kidney transplant recipients

ISRCTN ISRCTN57888785
DOI https://doi.org/10.1186/ISRCTN57888785
Secondary identifying numbers 0734/10
Submission date
22/05/2018
Registration date
30/05/2018
Last edited
12/12/2018
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Urological and Genital Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Urinary tract infections are frequent complications early after kidney transplantation, and although simple infection control measures may be effective, the use of antimicrobial coated catheters in settings other than transplantation has shown promising results for infection prevention. The aim of this study is to compare the effectiveness of nitrofurazone-coated silicone urinary catheters with non-impregnated silicone urinary catheters at reducing bacteriuria (bacteria in urine) and urinary tract infections in kidney transplant recipients.

Who can participate?
Living donor kidney transplant recipients

What does the study involve?
Participants are randomly allocated to either a nitrofurazone-coated silicone urinary catheter or a non-impregnated silicone urinary catheter. The total duration of treatment was 7 days. Rates of bacteriuria, urinary infection and antimicrobial resistance are measured at the start of the study, and at 7, 14 and 30 days after kidney transplantation.

What are the possible benefits and risks of participating?
The possible benefits are the reduction of bacteriuria and urinary infection after kidney transplantation. The risks to the participants would be discomfort with the use of the bladder catheter, hematuria (blood in urine), and obstruction of the urinary flow.

Where is the study run from?
Hospital do Rim, São Paulo (Brazil)

When is the study starting and how long is it expected to run for?
June 2010 to December 2014

Who is funding the study?
CAPES Scholarship (Brazil)

Who is the main contact?
Dr Fernando Menezes

Contact information

Dr Fernando Menezes
Scientific

1048, Portugal Avenue
São Paulo
04559002
Brazil

Study information

Study designPilot randomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typePrevention
Participant information sheet Not available in web format, please use the contact details to request a patient information sheet
Scientific titleA randomized clinical trial comparing nitrofurazone-coated and uncoated urinary catheters in kidney transplant recipients
Study objectivesUrinary tract infections (UTI) are the most common bacterial infections in kidney transplant recipients, accounting for significant morbidity and increased costs. The incidence of UTI in kidney transplant recipients ranges from 7% to 43% and occur mainly during the first month after transplantation. Urinary tract infections and asymptomatic bacteriuria have been associated with impaired graft function, frequent, and sometimes unnecessary, antibiotic use and may precede pyelonephritis, with relevant clinical consequences. Thus, prevention of urinary tract infections and asymptomatic bacteriuria, mainly employing standard nosocomial infection prevention measures may have a significant impact after kidney transplantation.

The purpose of this study was to compare the efficacy of Nitrofurazone-coated silicone urinary catheters with non-impregnated silicone urinary catheters in reducing bacteriuria and urinary tract infections in kidney transplant recipients.
Ethics approval(s)Ethics and Research Committee of the Universidade Federal de São Paulo, 08/12/2010, ref: 0734/10
Health condition(s) or problem(s) studiedUrinary tract infections
InterventionParticipants were randomized one day before kidney transplantation with a computer-generated system in a 1:1 ratio to a 3-way nitrofural-impregnated silicone catheter (StrataNF, Rochester Medical, Stewartville, Minnesota, USA) or a 3-way non-impregnated silicone catheter (Silmag, Silmag Brasil Produtos Médicos, Sorocaba, São Paulo, Brazil). The principal investigator, clinicians, nurses and participants were not masked to the allocated intervention because of the distinctive appearances of each catheter.

All patients were maintained on a triple immunosuppressive regimen (usually tacrolimus, mycophenolic acid and prednisone), with or without induction (antithymocyte globulin). Acute rejection treatment consisted of intravenous corticosteroids bolus for three to five consecutive days, followed by a course of antithymocyte globulin in the case of corticoid resistance. Perioperative Cefazolin was used as surgical prophylaxis for 24 hours after transplantation, and trimethoprim/sulfamethoxazole (80 mg / 400 mg) was maintained daily for six months.

The total duration of treatment was 7 days. The follow-up was 1 year after kidney transplantation.
Intervention typeDevice
Pharmaceutical study type(s)
Phase
Drug / device / biological / vaccine name(s)
Primary outcome measureAsymptomatic bacteriuria rates, urinary infection rates and antimicrobial resistance rates at baseline (transplant day), 7 days, 14 days and 30 days after kidney transplantation
Secondary outcome measuresIncidence of discomfort, etiological agents and urinary sediment at baseline (transplant day), 7 days, 14 days and 30 days after kidney transplantation.
Overall study start date01/06/2010
Completion date31/12/2014

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants214 patients
Key inclusion criteriaPatients included were older than 18 years and consecutively undergoing urethral catheterization for kidney transplantation with a living donor from March 2013 to December 2014
Key exclusion criteria1. Patients with asymptomatic bacteriuria or urinary tract infection at baseline
2. Deceased kidney transplant donors
3. Patients with known hypersensitivity to nitrofurantoin
4. Pregnancy
5. Those refusing to sign the informed consent form
Date of first enrolment04/03/2013
Date of final enrolment31/12/2014

Locations

Countries of recruitment

  • Brazil

Study participating centre

Hospital do Rim
960, Borges Lagoa Street
São Paulo
04038-002
Brazil

Sponsor information

Hospital do Rim
Hospital/treatment centre

960 Borges Lagoa Street
São Paulo
04038002
Brazil

Website www.hrim.com.br
ROR logo "ROR" https://ror.org/045e9rc94

Funders

Funder type

Government

CAPES Scholarship (Brazil)

No information available

Results and Publications

Intention to publish date30/06/2018
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planThe additional documents will be available. The protocol is not available online. Planned submission of the results to the American Journal of Infection Control in June 2018.
IPD sharing planThe dataset will be held at the university (Universidade Federal de São Paulo).

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/04/2019 Yes No

Editorial Notes

12/12/2018: Publication reference added.