title: Cefonicid kinetics in subjects with normal and impaired renal function.
abstract: Cefonicid is a cephalosporin with a longer t1/2 than currently available cephalosporins. Cefonicid kinetics after an intravenous dose of 7.5 mg/kg were followed in four groups of subjects: group 1, four subjects with normal creatinine clearance (Clcr greater than 80 ml/min); group II, seven subjects with mild renal insufficiency (Clcr 50 to 80 ml/min); group III, five subjects with moderate to severe renal impairment (Clcr 8 to 49 ml/min); and group IV, five subjects with end-stage renal disease who were receiving maintenance hemodialysis (Clcr less than 8 ml/ml). Cefonicid volume of distribution ranged from 6.9% to 17.6% body weight but was not related to Clcr. Elimination t1/2 was 4.6 +/- 0.7 hr in group 1,6.0 +/- 2.7 hr in group II, 25.6 +/- 14.0 hr in group III, and 65.3 +/- 43.6 hr in group IV. There was a strong correlation between plasma cefonicid clearance and Clcr. Nonrenal clearance did not change with decreasing Clcr. Hemodialysis clearance calculated from plasma concentrations and recovery in dialysate was 2.5 +/- 0.9 ml/min. These kinetic parameters were used to formulate dosage regimens for patients with renal impairment.
mesh_terms: D002435:Cefamandole / Q000031:analogs & derivatives* / Q000097:blood / Q000378:metabolism / Q000652:urine; D015790:Cefonicid; D003404:Creatinine / Q000378:metabolism; D006801:Humans; D007674:Kidney Diseases / Q000378:metabolism* / Q000628:therapy; D007700:Kinetics; D008657:Metabolic Clearance Rate; D006435:Renal Dialysis
chemical_list: D002435:Cefamandole; D015790:Cefonicid; D003404:Creatinine