title: Evaluation of the pharmacokinetics of two recombinant human erythropoietin preparations: epoetin zeta and epoetin alfa. 1st Communication: A monocentric, open, randomized, single dose, two-period crossover trial in healthy volunteers.
abstract: The pharmacokinetic properties of a new recombinant erythropoietin preparation (epoetin zeta, CAS 604802-70-2) compared to a reference product (epoetin alfa, CAS 113427-24-0) were analyzed after a single intravenous bolus injection of 10,000 IU in a two-period crossover design in 24 healthy volunteers. Peripheral venous blood samples were obtained pre-dose, and 0:05, 0:20, 0:40, 1:00, 1:20, 1:40, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00, 36:00, 48:00, and 72:00 hours post dosing. Samples of 24 volunteers were analyzed by means of a specific immunoassay (ELISA). Three volunteers were excluded from statistical analysis due to a paravasal injection in one of both study periods with resulting low plasma levels of epoetin. Comparison of both preparations showed nearly identical pharmacokinetic properties after intravenous administration. The usual bioequivalence limits were fulfilled for all relevant pharmacokinetic parameters.
authors.affiliation: University Hospital "Queen Giovanna', Sofia, Bulgaria.
authors.forename: Valentin
authors.initials: V
authors.lastname: Kirkov
authors.forename: Velislava
authors.initials: V
authors.lastname: Dimitrova
authors.forename: Marianne
authors.initials: M
authors.lastname: Siebert-Weigel
authors.forename: Michael
authors.initials: M
authors.lastname: Wolf-Pflugmann
authors.forename: Rossen
authors.initials: R
authors.lastname: Koytchev
authors.forename: Wolfram
authors.initials: W
authors.lastname: Richter
authors.forename: Angelika
authors.initials: A
authors.lastname: Bronn
authors.forename: Sacha
authors.initials: S
authors.lastname: Arsova
authors.forename: Arno
authors.initials: A
authors.lastname: Kromminga
mesh_terms: D000293:Adolescent; D000328:Adult; D019540:Area Under Curve; D002626:Chemistry, Pharmaceutical; D018592:Cross-Over Studies; D004797:Enzyme-Linked Immunosorbent Assay; D000068817:Epoetin Alfa; D004921:Erythropoietin / Q000493:pharmacokinetics*; D005260:Female; D006397:Hematinics / Q000493:pharmacokinetics*; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D011994:Recombinant Proteins
chemical_list: D006397:Hematinics; D011994:Recombinant Proteins; C530192:epoetin zeta; D004921:Erythropoietin; D000068817:Epoetin Alfa