发明名称 |
MULTIPARTICULATE PHARMACEUTICAL COMPOSITION COMPRISING A MULTITUDE OF TWO KINDS OF PELLETS |
摘要 |
<p>Multiparticulate pharmaceutical composition comprising a multitude of two kinds of pellets, A and B, each comprising metoprolol or a pharmaceutically acceptable salt thereof as an active pharmaceutical ingredient, wherein the pellets A are coated with a coating layer comprising at least 30 % by weight of a polymeric compound consisting of one or more (meth)acrylate copolymers polymerized from 20 to 40% by weight of ethyl acrylate, 60 to 80% by weight of methyl methacrylate and 0 or less than 5% by weight of methacrylic acid or acrylic acid, in an amount sufficient to result in an active pharmaceutical ingredient release profile according to USP in pH 6.8 test medium with a release rate of less than 20 % after 4 hours, wherein the pellets B are not coated or coated with a coating layer and show an active pharmaceutical ingredient release profile according to USP in pH 6.8 test medium with an active pharmaceutical ingredient release rate of more than 40 % after 4 hours, wherein the metoprolol release rate of the pellets A in pH 1.2 test medium according to USP with the addition of 40 % (v/v) ethanol is•not more than 15 % after 15 minutes•more than 15 up to 40 % after 30 minutes, wherein the metoprolol release rate of the pellets B in pH 1.2 test medium according to USP with the addition of 40 % (v/v) ethanol is•more than 15 % after 15 minutes•more than 40 % after 30 minutes and wherein the pellets A and B are present in the multiparticulate pharmaceutical composition in a relation resulting in a combined active pharmaceutical ingredient release profile of the multiparticulate pharmaceutical composition according to USP in pH 6.8 test medium with releases rates of•not more than 25 % after 1 hour•20 to 40 % after 4 hours•40 to 60 % after 8 hours•not less than 80 % after 20 hours.</p> |
申请公布号 |
WO2014124700(A1) |
申请公布日期 |
2014.08.21 |
申请号 |
WO2013EP58625 |
申请日期 |
2013.04.25 |
申请人 |
EVONIK INDUSTRIES AG;JOSHI, SHRADDHA SANJEEV;GUHA, ASHISH SHARADCHANDRA;DOKE, SURESH SHAHURAJ;SHAH, ASHISHKUMAR PRAFULCHANDRA;PATIL, PREETI |
发明人 |
JOSHI, SHRADDHA SANJEEV;GUHA, ASHISH SHARADCHANDRA;DOKE, SURESH SHAHURAJ;SHAH, ASHISHKUMAR PRAFULCHANDRA;PATIL, PREETI |
分类号 |
A61K9/22;A61K9/26;A61K9/50;A61K9/54 |
主分类号 |
A61K9/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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