Effect of Telbivudine on Renal Function and Proteinuria in Patients With CHB & Chronic Renal Diseases

Summary

Chronic kidney disease (CKD) and chronic viral hepatitis due to hepatitis B virus (HBV) are both major public health problems. Treatment of chronic HBV infection in CKD patients, however, is not well defined because of insufficient data from clinical trials. Telbivudine is a new antiviral that provides effective and sustained viral suppression in patients with compensated chronic hepatitis B infection. Unlike other nucleotide and nucleoside analogues, renal toxicity is uncommon in telbivudine, and dosage adjustment is not required in patients with mild renal impairment. We propose to conduct an open-label single-arm study to evaluate the effect of telbivudine on renal function and proteinuria in patients with chronic HBV infection and mild-to-moderate renal impairment. Twenty patients with chronic HBV infection and chronic kidney disease (estimated glomerular filtration rate 15 to 60 ml/min) will be recruited. They will be treated with telbivudine, with the dosage adjusted according to thei renal function, for 5 years. Serum HBV DNA, proteinuria, renal function, and urinary inflammatory markers will be monitored.

Timeline

Start

2013-12

Primary completion

2015-06

Completion

2015-06

Publications

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• Background McKeage K, Keam SJ. Telbivudine: a review of its use in compensated chronic hepatitis B. Drugs. 2010 Oct 1;70(14):1857-83. doi: 10.2165/11204330-000000000-00000.
• Background But DY, Yuen MF, Fung J, Lai CL. Safety evaluation of telbivudine. Expert Opin Drug Saf. 2010 Sep;9(5):821-9. doi: 10.1517/14740338.2010.507190.
• Background Zhou XJ, Swan S, Smith WB, Marbury TC, Dubuc-Patrick G, Chao GC, Brown NA. Pharmacokinetics of telbivudine in subjects with various degrees of renal impairment. Antimicrob Agents Chemother. 2007 Dec;51(12):4231-5. doi: 10.1128/AAC.00557-07. Epub 2007 Sep 17.
• Background Lai CL, Gane E, Liaw YF, Hsu CW, Thongsawat S, Wang Y, Chen Y, Heathcote EJ, Rasenack J, Bzowej N, Naoumov NV, Di Bisceglie AM, Zeuzem S, Moon YM, Goodman Z, Chao G, Constance BF, Brown NA; Globe Study Group. Telbivudine versus lamivudine in patients with chronic hepatitis B. N Engl J Med. 2007 Dec 20;357(25):2576-88. doi: 10.1056/NEJMoa066422.
• Background Gane EJ, Wang Y, Liaw YF, Hou J, Thongsawat S, Wan M, Moon YM, Jia J, Chao YC, Niu J, Leung N, Samuel D, Hsu CW, Bao W, Lopez P, Avila C. Efficacy and safety of prolonged 3-year telbivudine treatment in patients with chronic hepatitis B. Liver Int. 2011 May;31(5):676-84. doi: 10.1111/j.1478-3231.2011.02490.x. Epub 2011 Mar 16.
• Background Levey AS, Bosch JP, Lewis JB, Greene T, Rogers N, Roth D. A more accurate method to estimate glomerular filtration rate from serum creatinine: a new prediction equation. Modification of Diet in Renal Disease Study Group. Ann Intern Med. 1999 Mar 16;130(6):461-70. doi: 10.7326/0003-4819-130-6-199903160-00002.
• Background Levey AS, Stevens LA, Schmid CH, Zhang YL, Castro AF 3rd, Feldman HI, Kusek JW, Eggers P, Van Lente F, Greene T, Coresh J; CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration). A new equation to estimate glomerular filtration rate. Ann Intern Med. 2009 May 5;150(9):604-12. doi: 10.7326/0003-4819-150-9-200905050-00006.
• Background Szeto CC, Chow KM, Kwan BC, Chung KY, Leung CB, Li PK. Oral calcitriol for the treatment of persistent proteinuria in immunoglobulin A nephropathy: an uncontrolled trial. Am J Kidney Dis. 2008 May;51(5):724-31. doi: 10.1053/j.ajkd.2007.12.038. Epub 2008 Apr 3.
• Background Grubb A, Nyman U, Bjork J, Lindstrom V, Rippe B, Sterner G, Christensson A. Simple cystatin C-based prediction equations for glomerular filtration rate compared with the modification of diet in renal disease prediction equation for adults and the Schwartz and the Counahan-Barratt prediction equations for children. Clin Chem. 2005 Aug;51(8):1420-31. doi: 10.1373/clinchem.2005.051557. Epub 2005 Jun 16.

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