In accordance with the requirements of the State Pharmacopoeia of the Russian Federation, 14th edition, Clostridium novyi 198 test strain is used to determine growth promoting properties of thioglycollate medium when testing sterility of immunobiological medicinal products. The preservation of C. novyi 198 as spores requires a special liquid medium containing insoluble calcium chloride casein (CChC). At present, there is no reference standard available on the Russian market for the quality control of CChC used as a component of the media for preservation of C. novyi 198. The aim of the study was to develop and certify the first batch of calcium chloride casein industry reference standard (IRS) for the quality control of CChC batches and liquid media containing CChC which is used to preserve C. novyi 198 as spores. Materials and methods: thermally denatured CChC which was chemically synthesized from industrial CChC was used as candidate material. The quality control was performed using the test procedures described in procedural guidelines MUK 4.2.2316-08. C. novyi 198 spores were obtained as described in the «Sterility testing» section of MUK 4.2.2316-08 (preparation, inoculation and incubation in the medium containing calcium chloride casein IRS). Results: a list of quality parameters was developed for calcium chloride casein IRS: «Spore formation» (certifiable parameter), «Appearance», «Loss on drying», «Clarity of medium». The first batch of the candidate calcium chloride casein IRS was certified. The value of the «Spore formation» certifiable parameter was found to be (32.6 ± 7.3) %, the IRS shelf life was 5 years when stored in a dry place protected from light at a temperature of 15 to 25 °C. A documentation package for the IRS 4228-444-2018 was prepared and approved. The liquid medium containing CChC reference material (0.3 g/10 mL) allows for preservation of the biological properties of the C. novyi 198 working culture for at least 12 months. Conclusions: the certification results demonstrate that the calcium chloride casein IRS meets the applicable requirements and can be used as reference material to control the quality of new CChC batches and to assess the suitability of liquid medium containing CChC for preservation purposes. The use of the calcium chloride casein IRS makes it possible to standardise and greatly simplify the procedure for preserving the stability of C. novyi 198, to increase the efficiency and reliability of immunobiologicals quality control in terms of Sterility, and to reduce costs when using a freeze-dried strain.

Предложен алгоритм оценки возможности объединения 2 групп данных, полученных разными операторами, при аттестации стандартных образцов биологических лекарственных средств (СО БЛС). Проведена проверка однородности результатов, полученных разными операторами при аттестации отраслевого стандартного образца специфической активности вакцины полиомиелитной пероральной, двухвалентной, живой аттенуированной 1, 3 типов «БиВак полио», с применением критерия Манна — Уитни и Z-статистики для 2 независимых выборок вручную с помощью формул с последующей интерпретацией результатов. Представлены результаты расчета критерия Манна — Уитни в программе Statistica (версия 10).

Authenticity evaluation of proteins obtained with recombinant DNA technology is an important step in confirming efficacy and safety of the drugs based on them. One of the main ways to assess the authenticity is to compare molecular structure of the test and standard samples using the peptide mapping method with chromatographic separation of the products obtained by enzymatic degradation. Proper selection of a standard reference sample is essential in order to achieve reliable results. A standard sample of Interferon (CRS, Chemical Reference Substances) recommended by the European Agency for the Quality of Medicines for interferon alpha-2b substances containing N-terminal methionine is inappropriate, since the Interferon CRS sample doesn’t contain methionine. We present the results of development of qualification procedure for methionine form of Interferon alfa-2b industrial standard sample (ISS). The range of use for this ISS is authenticity confirmation for the methionine form of interferon alpha-2b substance using peptide mapping method with reverse-phase high-performance liquid chromatography (reverse-phase HPLC). The quality assessment was performed for all the parameters specified by the manufacturer of this candidate substance at the initial stage of qualification procedure, due to changed application area, and changed package size. Further, 30 peptide cards of the ISS candidate substance were obtained after pre-trypsinolysis of the protein followed by validated HPLC method with proven repeatability. It was shown that the hydrolysis conditions, i.e., the choice of trypsin preparations, may significantly affect the peptide map profile. Therefore, a reference to specific manufacturer and the catalog number of the product should be provided in description of application conditions for the ISS proposed. A set of eight reference peaks (peaks of comparison) has been justified, as based on evaluation of peptide maps and results of high-resolution mass spectrometry. The peak with maximally stable yield and intensity was selected as the main peak with an established absolute retention time. Two peaks with relative retention times were chosen as essential peaks for evaluation, i.e., the 1st peak containing N-terminal methionine, and the 2nd peak of highest molecular weight with an established amino acid sequence covering 11% of the studied interferon molecule. We have also qualified ISS parameters expressed as absolute (minimum for one reference peak), and relative (for the remaining reference peaks) retention time periods. Authenticity of the ISS candidate was further confirmed by the peptide mapping method, as compared with interferon CRS reference standard. Their peak patterns proved to be near-similar, except of a peak with eluted peptide containing N-terminal methionine as revealed by high-resolution mass spectrometry

Water for injections is one of the most popular diluents used for preparation of parenteral dosage forms. The European  Pharmacopoeia recommends two methods for the determination of  subvisible particulate matter: Light Obscuration Particle Count Test  and Microscopic Particle Count Test. The Russian Pharmacopoeia,  13th ed., additionally allows for the use of the Coulter principle  (Electrical Sensing Zone method). Thus, a procedure had to be developed for subvisible particles determination in water for  injections based on the Coulter principle (hereinafter — procedure).  The article presents the results of development and validation of the  procedure, i.e. the characteristics of accuracy, dilutional linearity,  ruggedness in terms of the time factor, and repeatability for particles more than 10 μm in size. The results of subvisible particles  determination obtained with the help of the developed procedure based on the Coulter principle were compared to the  results obtained with the help of the light obscuration particle count  test. The accuracy of the developed procedure was supported by the  statistical insignificance of the differences between the obtained  results. The values of ruggedness in terms of the time factor (NMT  14 %) and repeatability (NMT 15 %) did not exceed the established  acceptance criterion which is equal to the acceptable limit of the  instrument error for particle count in the tested samples (20 %). The  dilutional linearity of the procedure was demonstrated  (coefficient of determination R2 = 0.999). The results obtained  during the validation studies support the possibility of using the  Coulter principle for the assessment of subvisible particles in water  for injections.

127051, Москва, Петровский бульвар, д. 8, стр. 2. Стандартные образцы необходимы для стандартизации лекарственных средств (ЛС), в том числе и биологических (БЛС), что является важнейшим условием эффективности и безопасности их применения. На основании рассмотрения опыта аттестации биологических стандартных образцов и анализа зарубежных и отечественных нормативно-методических документов в области стандартных образцов предложен порядок аттестации стандартных образцов, применяемых при контроле качества БЛС. Описаны общие статистические подходы к оценке результатов испытаний, полученных при установлении значения аттестованной характеристики стандартного образца БЛС и его неопределенности.

Представлены материалы по аттестации и изучению стабильности впервые разработанного отечественного стандартного образца иммуноглобулина человека для определения антикомплементарной активности, применяемого для оценки стабильности и приемлемости результатов испытания. По результатам проведенных исследований аттестованные значения антикомплементарной активности отрицательного контроля стандартного образца находятся в интервале от 37,9 до 45,1 %, положительного контроля — в интервале от 73,6 до 82,8 % (с доверительной вероятностью 0,95). На основании материалов по изучению стабильности обоснован срок годности 1,5 года. Внедрение аттестованного стандартного образца в фармацевтический анализ лекарственных препаратов иммуноглобулинов человека для внутривенного введения при проведении экспертизы и контроля качества в рамках государственных заданий, а также с целью подтверждения соответствия требованиям нормативной документации позволит обеспечить достоверность определения антикомплементарных свойств.

Валидирована методика определения антикомплементарной активности лекарственных препаратов иммуноглобулинов (Ig) человека для внутривенного введения методом реакции связывания комплемента по показателям правильность, прецизионность (повторяемость, внутрилабораторная прецизионность), предел количественного определения, линейность и аналитическая область. Методика может быть использована для оценки качества по показателю «Антикомплементарная активность» в рамках проведения фармацевтической экспертизы качества лекарственных препаратов Ig человека.

Presents information on 1st series of branch standard sample to characterization the quality of the candidate of branch standard sample tested for performance evaluation: specific activity of authenticity, a description of sterility, presence of mycoplasma, loss on drying, pH, filling accuracy, the residual oxygen content in the vials. Attested feature of the new series of the standard sample is a specific activity, because the purpose of the of branch reference standard activity live Rubella vaccine is the suitability of the results of determining the specific activity of the Rubella virus in vaccines. Indicator specific activity of the candidate in the of branch reference standard was assessed by interlaboratory studies compared to current 1st standard sample of the enterprise and 1st International Reference Reagent For Rubella (Live) NIBSC-91/688. Certified value of the index is set «Specific activity of branch reference standard activity for rubella (4,63±0,50) lgCCE 50 /0,5 ml. Shelf-life stated by using test accelerated the degradation is not less than at minus 20°C.