Methods |
Study design: parallel RCT
Study duration: recruitment February 2008 to August 2010
Duration of follow‐up: 12 months
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Participants |
Setting: multicentre
Country: Japan
Patients aged 18 to 65 years undergoing primary kidney transplantation
Number: treatment group (61); control group (61)
Mean age ± SD (years): treatment group (42.5 ± 14.13); control group (38.6 ± 11.36)
Sex (M/F): treatment group (46/15); control group (37/24)
Exclusion criteria: no evidence of graft function within 24 hours of transplantation; cold ischaemia time > 24 h; donor age > 65 years; patients of multiorgan, ABO‐incompatible, positive T‐cell cross‐match or HLA identical living‐related‐donor transplants; PRA > 20%
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Interventions |
Treatment group
CsA trough levels: 100 to 200 ng/mL (months 0 to 2), 75 to 150 ng/mL (months 2 and 3), 50 to 100 ng/mL (months 4 and 5), 25 to 50 ng/mL thereafter
EVL trough levels: 3 to 8 ng/mL (from day 5)
Control group
Both groups
|
Outcomes |
Efficacy failure: defined as the composite of treated BPAR, graft loss, death or loss to follow‐up at 12 months
Composite of graft loss, death or long‐term follow‐up at 12 months
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Notes |
Funding source: "This study was supported by Novartis Pharma K.K. Japan. The authors thank Heike Schwende, PhD, Novartis Pharma AG Switzerland, for organizing the development of the manuscript. They also thank Swati Machwe, PhD, and Raghuraj Puthige, PhD, Novartis Healthcare Pvt. Ltd India for editorial assistance."
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Risk of bias |
Bias |
Authors' judgement |
Support for judgement |
Random sequence generation (selection bias) |
Low risk |
Independent validated system that automated the random assignment of treatment arms |
Allocation concealment (selection bias) |
Unclear risk |
Insufficient information to permit judgement |
Blinding of participants and personnel (performance bias)
All outcomes |
High risk |
Open‐label study |
Blinding of outcome assessment (detection bias)
All outcomes |
Unclear risk |
Most outcomes were objective, however there was no blinding of assessment |
Incomplete outcome data (attrition bias)
All outcomes |
Low risk |
ITT analysis all patients analysed |
Selective reporting (reporting bias) |
Low risk |
Prespecified outcomes were reported |
Other bias |
High risk |
Funded by Novartis who also helped in manuscript development |