Effects of agalsidase-beta on rate of loss of kidney function in a 36-year-old male with Fabry nephropathy. Creatinine clearance was measured at the indicated points, and enzyme replacement therapy (1 mg/kg every 2 weeks) was started in early 2001. During the entire follow-up period, there were no major changes in blood pressure or proteinuria (0.4–0.6 g). The patient was started on 5 mg lisinopril in 1994. Because of persistent cough, irbesartan at 150 mg/day was substituted in for lisinopril in December 2001. Reproduced with permission from De Schoenmakere G, Chauveau D, Grunfeld JP. 2003. Enzyme replacement therapy in Anderson-Fabry’s disease: beneficial clinical effect on vital organ function. Nephrol Dial Transplant, 18:33–5. Copyright © 2003 Oxford University Press.