Preparation for improving bioavailability of sorafenib

A technology of sorafenib and preparations, which is applied in the field of preparations for improving the bioavailability of sorafenib, and can solve the problems to be further studied and the like

Inactive Publication Date: 2015-12-09
TSINGHUA UNIV
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the drug composition of Sorafenib preparations needs further study

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation for improving bioavailability of sorafenib
  • Preparation for improving bioavailability of sorafenib
  • Preparation for improving bioavailability of sorafenib

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1 Material

[0044] Sorafenib tosylate used in the embodiments of the present invention is provided by Qilu Pharmaceutical Co., Ltd. (Shandong, China); Polyvinylpyrrolidone PVP (Kollidon30) and polyvinylpyrrolidone vinyl acetate PVP-VA (KollidonVA64) are provided by German BASF Presented by the chemical reagent company. All salts used to dissolve the solution and methanol (analytical grade) used for spray drying were provided by Beijing Chemical Plant. The chemical structures and key features of the complexes and compounds mentioned in the present invention are given by figure 1 shown.

Embodiment 2

[0045] The influence of embodiment 2PVP-VA and PVP on the supersaturation of Sorafenib in FaSSIF

[0046] In the embodiments of the present invention, in order to evaluate the impact of the compound on maintaining the supersaturated state of Sorafenib, the polymer compound PVP-VA or PVP was dissolved in the simulated intestinal fluid FaSSIF at a concentration of 0.3 and 3 mg / mL, and toluenesulfonic acid Sorafenib was dissolved in DMSO at a concentration of 100 or 20 mg / mL. In the dissolution medium, 100 microliters of Sorafenib drug solution was added to 10mL of polymer compound solution. The obtained mixture solution was shaken and dissolved on a shaker (brand: Tianjin Uno, model: WE-2), the shaking speed was 100 rpm, and the temperature was 37 degrees Celsius. After 0.3, 1, 2 and 4 hours, the solution was centrifuged at 15000rpm for 3min, and the concentration of the drug in the supernatant was analyzed by high performance liquid chromatography (HPLC) (brand: ShimadzuLC-20A...

Embodiment 3

[0054] The influence of embodiment 3SLS on the dissolution behavior of Sorafenib

[0055] In this example, the inventors investigated the effects of PVP-VA, PVP-VA+SLS, PVP, PVP+SLS and SLS on the dissolution behavior of sorafenib. The results of the investigation are as follows: image 3(The concentration of sorafenib on the ordinate indicates the concentration of sorafenib) shows that the solubility of sorafenib in FaSSIF is 3.3 micrograms / mL, and when the concentration of SLS is increased to 3mg / mL alone, the solubility of sorafenib can reach 29.4 micrograms / mL . There was no significant change in the solubility of sorafenib when increasing the polymer PVP-VA or PVP alone to 3 mg / mL. However, when 3mg / mL SLS and 3mg / mL PVP-VA co-exist, the solubility of Sorafenib increased to 164.6 μg / mL. However, this synergistic solubilization phenomenon was not obvious when PVP and SLS co-existed. When 3mg / mLPVP and 3mg / mLSLS co-exist, the solubility of sorafenib is only 43.3μg / mL. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a sorafenib preparation. The sorafenib preparation includes active ingredients and macromolecular cosolvent. The active ingredients are selected from at least one of sorafenib, sorafenib salt, a sorafenib derivative or a prodrug of the sorafenib derivative. The macromolecular cosolvent is provided with vinyl acetate radical groups. The sorafenib preparation has the advantage that the bioavailability of the drug active ingredients is high.

Description

technical field [0001] The invention relates to the field of biomedicine, in particular to a preparation for improving the bioavailability of sorafenib. Background technique [0002] Sorafenib is a tyrosine kinase inhibitor for the treatment of inoperable liver cancer, renal cell carcinoma, and thyroid cancer. Sorafenib inhibits CRAF, BRAF, V600EBRAF, c-Kit, FLT-3 in tumor cell target sites and CRAF, VEGFR-2, VEGFR-3, PDGFR-β in tumor blood vessel target sites. RAF kinases are serine / threonine kinases, while c-Kit, FLT-3, VEGFR-2, VEGFR-3, PDGFR-β are tyrosine kinases, these kinases act on tumor cell signaling pathways, angiogenesis and apoptosis , Therefore, Sorafenib can inhibit tumor cell proliferation and resist angiogenesis. [0003] At present, the common methods used in the pharmaceutical field to improve the bioavailability of drugs are as follows: salt formation, reduction of drug particle size, use of non-aqueous solvents / co-solvents, preparation of emulsions or ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61K47/34A61K31/44A61K9/20A61P35/00
CPCA61K9/20A61K31/44A61K47/34
Inventor 钱锋刘程宇
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap