Highly variable medicines - specific aspects of bioequivalence studies

At present a specific group of medicines - highly variable medicines - is distinguished based on intraindividual variability data (CVintra > 30%). It is quite difficult to confirm therapeutic equivalence of highly variable medicines by pharmacokinetic bioequivalence studies, and quite a large num...

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Main Authors: D. P. Romodanovsky, T. V. Eremenkova, M. A. Dranitsyna, D. V. Goryachev, R. R. Niyazov, E. V. Gavrishina, V. A. Merkulov
Format: Article
Language:Russian
Published: Federal State Budgetary Institution ‘Scientific Centre for Expert Evaluation of Medicinal Products’ of the Ministry of Health of the Russian Federation (FSBI ‘SCEEMP’) 2018-02-01
Series:Регуляторные исследования и экспертиза лекарственных средств
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Online Access:https://www.vedomostincesmp.ru/jour/article/view/57
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author D. P. Romodanovsky
T. V. Eremenkova
M. A. Dranitsyna
D. V. Goryachev
R. R. Niyazov
E. V. Gavrishina
V. A. Merkulov
author_facet D. P. Romodanovsky
T. V. Eremenkova
M. A. Dranitsyna
D. V. Goryachev
R. R. Niyazov
E. V. Gavrishina
V. A. Merkulov
author_sort D. P. Romodanovsky
collection DOAJ
description At present a specific group of medicines - highly variable medicines - is distinguished based on intraindividual variability data (CVintra > 30%). It is quite difficult to confirm therapeutic equivalence of highly variable medicines by pharmacokinetic bioequivalence studies, and quite a large number of subjects need to be included into the study in order to confirm bioequivalence within standard limits of 80-125%. Variability may be caused by many factors which include physiological and pathophysiological differences in absorption and metabolism processes; factors associated with properties of the active substance and factors associated with the finished product. In general factors impacting variability in bioequivalence studies could be divided into controllable and uncontrollable. The influence of controllable factors can be neutralized by proper performance of the bioequivalence study or proper development of the finished product. The influence of uncontrollable factors cannot be neutralized, and due to these factors medicines can be recognized as highly variable. This article provides a definition of a highly variable medicine, describes reasons for high variability and outlines current regulatory recommendations for and approaches to studying bioequivalence of highly variable medicines, proposes recommendations for designing such studies.
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institution Matheson Library
issn 3034-3062
3034-3453
language Russian
publishDate 2018-02-01
publisher Federal State Budgetary Institution ‘Scientific Centre for Expert Evaluation of Medicinal Products’ of the Ministry of Health of the Russian Federation (FSBI ‘SCEEMP’)
record_format Article
series Регуляторные исследования и экспертиза лекарственных средств
spelling doaj-art-4dcfd83ba7e94e3aa7dc6a76b7d27a752025-08-03T19:56:42ZrusFederal State Budgetary Institution ‘Scientific Centre for Expert Evaluation of Medicinal Products’ of the Ministry of Health of the Russian Federation (FSBI ‘SCEEMP’)Регуляторные исследования и экспертиза лекарственных средств3034-30623034-34532018-02-010451055Highly variable medicines - specific aspects of bioequivalence studiesD. P. Romodanovsky0T. V. Eremenkova1M. A. Dranitsyna2D. V. Goryachev3R. R. Niyazov4E. V. Gavrishina5V. A. Merkulov6Federal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products» of the Ministry of Health of the Russian FederationFederal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products» of the Ministry of Health of the Russian FederationFederal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products» of the Ministry of Health of the Russian FederationFederal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products» of the Ministry of Health of the Russian FederationFederal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products» of the Ministry of Health of the Russian FederationFederal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products» of the Ministry of Health of the Russian FederationFederal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products» of the Ministry of Health of the Russian FederationAt present a specific group of medicines - highly variable medicines - is distinguished based on intraindividual variability data (CVintra > 30%). It is quite difficult to confirm therapeutic equivalence of highly variable medicines by pharmacokinetic bioequivalence studies, and quite a large number of subjects need to be included into the study in order to confirm bioequivalence within standard limits of 80-125%. Variability may be caused by many factors which include physiological and pathophysiological differences in absorption and metabolism processes; factors associated with properties of the active substance and factors associated with the finished product. In general factors impacting variability in bioequivalence studies could be divided into controllable and uncontrollable. The influence of controllable factors can be neutralized by proper performance of the bioequivalence study or proper development of the finished product. The influence of uncontrollable factors cannot be neutralized, and due to these factors medicines can be recognized as highly variable. This article provides a definition of a highly variable medicine, describes reasons for high variability and outlines current regulatory recommendations for and approaches to studying bioequivalence of highly variable medicines, proposes recommendations for designing such studies.https://www.vedomostincesmp.ru/jour/article/view/57исследования биоэквивалентностибиоэквивалентностьвысоковариабельные препаратыbioequivalence studiesbioequivalencehighly variable medicines
spellingShingle D. P. Romodanovsky
T. V. Eremenkova
M. A. Dranitsyna
D. V. Goryachev
R. R. Niyazov
E. V. Gavrishina
V. A. Merkulov
Highly variable medicines - specific aspects of bioequivalence studies
Регуляторные исследования и экспертиза лекарственных средств
исследования биоэквивалентности
биоэквивалентность
высоковариабельные препараты
bioequivalence studies
bioequivalence
highly variable medicines
title Highly variable medicines - specific aspects of bioequivalence studies
title_full Highly variable medicines - specific aspects of bioequivalence studies
title_fullStr Highly variable medicines - specific aspects of bioequivalence studies
title_full_unstemmed Highly variable medicines - specific aspects of bioequivalence studies
title_short Highly variable medicines - specific aspects of bioequivalence studies
title_sort highly variable medicines specific aspects of bioequivalence studies
topic исследования биоэквивалентности
биоэквивалентность
высоковариабельные препараты
bioequivalence studies
bioequivalence
highly variable medicines
url https://www.vedomostincesmp.ru/jour/article/view/57
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AT tveremenkova highlyvariablemedicinesspecificaspectsofbioequivalencestudies
AT madranitsyna highlyvariablemedicinesspecificaspectsofbioequivalencestudies
AT dvgoryachev highlyvariablemedicinesspecificaspectsofbioequivalencestudies
AT rrniyazov highlyvariablemedicinesspecificaspectsofbioequivalencestudies
AT evgavrishina highlyvariablemedicinesspecificaspectsofbioequivalencestudies
AT vamerkulov highlyvariablemedicinesspecificaspectsofbioequivalencestudies