Dick de Zeeuw1, Deborah A Anzalone2, Valerie A Cain2, Michael D Cressman3, Hiddo J Lambers Heerspink4, Bruce A Molitoris5, John T Monyak2, Hans-Henrik Parving6, Giuseppe Remuzzi7, James R Sowers8, Donald G Vidt9. 1. Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands. Electronic address: d.de.zeeuw@umcg.nl. 2. AstraZeneca, Wilmington, DE, USA. 3. Cardiovascular/Metabolic Unit, Covance, Princeton, NJ, USA (formerly AstraZeneca, Wilmington, DE, USA). 4. Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands. 5. Department of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA. 6. Department of Medical Endocrinology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Faculty of Health Science, Aarhus University, Aarhus, Denmark. 7. IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy. 8. Diabetes and Cardiovascular Center, University of Missouri, Columbia, MO, USA. 9. Department of Nephrology and Hypertension, Cleveland Clinic, Cleveland, OH, USA.
Abstract
BACKGROUND: The role of lipid-lowering treatments in renoprotection for patients with diabetes is debated. We studied the renal effects of two statins in patients with diabetes who had proteinuria. METHODS:PLANET I was a randomised, double-blind, parallel-group trial done in 147 research centres in Argentina, Brazil, Bulgaria, Canada, Denmark, France, Hungary, Italy, Mexico, Romania, and the USA. We enrolled patients with type 1 or type 2 diabetes aged 18 years or older with proteinuria (urine protein:creatinine ratio [UPCR] 500-5000 mg/g) and taking stable angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, or both. We randomly assigned participants to atorvastatin 80 mg, rosuvastatin 10 mg, or rosuvastatin 40 mg for 52 weeks. The primary endpoint was change from baseline to week 52 of mean UPCR in each treatment group. The study is registered with ClinicalTrials.gov, number NCT00296374. FINDINGS:We enrolled 353 patients: 118 were assigned to rosuvastatin 10 mg, 124 to rosuvastatin 40 mg, and 111 to atorvastatin 80 mg; of these, 325 were included in the intention-to-treat population. UPCR baseline:week 52 ratio was 0·87 (95% CI 0·77-0·99; p=0·033) with atorvastatin 80 mg, 1·02 (0·88-1·18; p=0·83) with rosuvastatin 10 mg, and 0·96 (0·83-1·11; p=0·53) with rosuvastatin 40 mg. In a post-hoc analysis to compare statins, we combined data from PLANET I with those from PLANET II (a similar randomised parallel study of 237 patients with proteinuria but without diabetes; registered with ClinicalTrials.gov, NCT00296400). In this analysis, atorvastatin 80 mg lowered UPCR significantly more than did rosuvastatin 10 mg (-15·6%, 95% CI -28·3 to -0·5; p=0·043) and rosuvastatin 40 mg (-18·2%, -30·2 to -4·2; p=0·013). Adverse events occurred in 69 (60%) of 116 patients in the rosuvastatin 10 mg group versus 79 (64%) of 123 patients in the rosuvastatin 40 mg group versus 63 (57%) of 110 patients in the atorvastatin 80 mg group; renal events occurred in nine (7·8%) versus 12 (9·8%) versus five (4·5%). INTERPRETATION: Despite high-dose rosuvastatin lowering plasma lipid concentrations to a greater extent than did high-dose atorvastatin, atorvastatin seems to have more renoprotective effects for the studied chronic kidney disease population. FUNDING: AstraZeneca.
RCT Entities:
BACKGROUND: The role of lipid-lowering treatments in renoprotection for patients with diabetes is debated. We studied the renal effects of two statins in patients with diabetes who had proteinuria. METHODS: PLANET I was a randomised, double-blind, parallel-group trial done in 147 research centres in Argentina, Brazil, Bulgaria, Canada, Denmark, France, Hungary, Italy, Mexico, Romania, and the USA. We enrolled patients with type 1 or type 2 diabetes aged 18 years or older with proteinuria (urine protein:creatinine ratio [UPCR] 500-5000 mg/g) and taking stable angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, or both. We randomly assigned participants to atorvastatin 80 mg, rosuvastatin 10 mg, or rosuvastatin 40 mg for 52 weeks. The primary endpoint was change from baseline to week 52 of mean UPCR in each treatment group. The study is registered with ClinicalTrials.gov, number NCT00296374. FINDINGS: We enrolled 353 patients: 118 were assigned to rosuvastatin 10 mg, 124 to rosuvastatin 40 mg, and 111 to atorvastatin 80 mg; of these, 325 were included in the intention-to-treat population. UPCR baseline:week 52 ratio was 0·87 (95% CI 0·77-0·99; p=0·033) with atorvastatin 80 mg, 1·02 (0·88-1·18; p=0·83) with rosuvastatin 10 mg, and 0·96 (0·83-1·11; p=0·53) with rosuvastatin 40 mg. In a post-hoc analysis to compare statins, we combined data from PLANET I with those from PLANET II (a similar randomised parallel study of 237 patients with proteinuria but without diabetes; registered with ClinicalTrials.gov, NCT00296400). In this analysis, atorvastatin 80 mg lowered UPCR significantly more than did rosuvastatin 10 mg (-15·6%, 95% CI -28·3 to -0·5; p=0·043) and rosuvastatin 40 mg (-18·2%, -30·2 to -4·2; p=0·013). Adverse events occurred in 69 (60%) of 116 patients in the rosuvastatin 10 mg group versus 79 (64%) of 123 patients in the rosuvastatin 40 mg group versus 63 (57%) of 110 patients in the atorvastatin 80 mg group; renal events occurred in nine (7·8%) versus 12 (9·8%) versus five (4·5%). INTERPRETATION: Despite high-dose rosuvastatin lowering plasma lipid concentrations to a greater extent than did high-dose atorvastatin, atorvastatin seems to have more renoprotective effects for the studied chronic kidney disease population. FUNDING: AstraZeneca.
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