title: International collaborative study for the calibration of the Ph. Eur. somatropin chemical reference substance batches 3 and 4 (BSP108).
abstract: An international collaborative study was carried out for the establishment of replacement batches for the European Pharmacopoeia (Ph. Eur.) Somatropin Chemical Reference Substance (CRS) batch 2. The study was organised within the framework of the Biological Standardisation Programme (BSP) of the Council of Europe and the European Commission. Seventeen laboratories from Europe, North America, South America and Australia took part in the collaborative study. The study aimed at calibrating the somatropin content of 2 candidate preparations and demonstrating their suitability to serve as a reference substance in the tests for identification, for related proteins, for dimers and related substances of higher molecular mass (HMM), for charged variants distribution and for the assay of somatropin, as prescribed by the current Ph. Eur. monographs 0950 Somatropin bulk solution, 0951 Somatropin and 0952 Somatropin for injection. Based on the results summarised herein the Ph. Eur. Commission adopted in January 2012 candidate preparation b (cCRS-b, Sample D) as somatropin CRS batch 3 with an assigned content of 3.86 mg of somatropin monomer per vial, and candidate preparation a (cCRS-a, Sample C) as somatropin CRS batch 4 with an assigned content of 2.59 mg of somatropin monomer per vial.
authors: Health Canada, Biologics and Genetic Therapies Directorate, Ottawa, Canada.
authors: M
authors: M
authors: Girard
authors: G
authors: G
authors: Rautmann
authors: B
authors: B
authors: Lorbetskie
authors: M-A
authors: MA
authors: Joly
authors: A
authors: A
authors: Daas
authors: E
authors: E
authors: Terao
mesh_terms: D001315:Australia; D002138:Calibration; D002850:Chromatography, Gel; D056148:Chromatography, Reverse-Phase; D004355:Drug Stability; D015507:Drugs, Investigational / Q000737:chemistry / Q000592:standards; D019075:Electrophoresis, Capillary; D005060:Europe; D013006:Growth Hormone / Q000737:chemistry / Q000592:standards; D007391:International Cooperation; D009656:North America; D010602:Pharmacopoeias as Topic; D055503:Protein Multimerization; D012015:Reference Standards; D013020:South America; D013678:Technology, Pharmaceutical / Q000592:standards*
chemical_list: D015507:Drugs, Investigational; D013006:Growth Hormone
keywords: European Pharmacopoeia; biological standardisation programme; chemical reference substance; collaborative study; recombinant protein; somatropin