Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of voriconazole atomized inhaler and use

A technology of voriconazole and inhalation agent, applied in the field of antifungal drugs, can solve problems such as instability of voriconazole

Active Publication Date: 2022-07-15
北京海一药业有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The voriconazole-cyclodextrin inclusion compound is prepared in the form of freeze-dried powder by freeze-drying technology, which solves the defect of voriconazole instability in the water phase; through the form of nebulized inhalation, the active ingredient is inhaled and administered directly to the lung lesions, It has a very good therapeutic effect on patients with fungal infections in the lungs

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
  • A kind of voriconazole atomized inhaler and use
  • A kind of voriconazole atomized inhaler and use
  • A kind of voriconazole atomized inhaler and use

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0030] (S1) dissolve 0.04 part of polyoxyethylene hydrogenated castor oil and 0.01 part of pentaerythritol monostearate in 15 parts of acetic acid aqueous solution with pH 3, stir evenly, slowly add 1 part of voriconazole original drug, continue to stir until voriconazole is completely dissolved . The obtained acetic acid solution of voriconazole was added to a saturated aqueous solution containing 10 parts of sodium sulfobutyl-β-cyclodextrin, stirred at 30 ° C for 4 h, the inclusion was complete, and the pH was adjusted to 6.5 with 6.5 wt % aqueous sodium carbonate solution , adding 0.1 wt % of activated carbon in the solution, stirring for 0.5 h, and filtering with a 0.22 μm microporous membrane to obtain a clear and transparent solution, which is used for the next step of freeze-drying.

[0031] (S2) Pre-freeze the mixture of the inclusion compounds obtained in (S1) at -30°C for 5h, vacuumize, heat up to -10°C at 5Pa, keep the temperature for 30h, and then slowly heat up to...

preparation example 2

[0038] Other conditions and operations are the same as in Preparation Example 1, except that the solubilizer in step (S1) is 0.05 part of polyoxyethylene hydrogenated castor oil, that is, no pentaerythritol monostearate is added. After testing, the inclusion rate of the voriconazole-cyclodextrin inclusion complex freeze-dried powder obtained in Preparation Example 2 was 96.4%, and in a phosphate buffer solution with pH=7 and a saturated solution at 25°C, the dissolved concentration of voriconazole reached 18.6 mg / mL.

preparation example 3

[0040] Other conditions and operations are the same as in Preparation Example 1, except that the solubilizer in step (S1) is 0.05 part of pentaerythritol monostearate, that is, no polyoxyethylene hydrogenated castor oil is added. After testing, the inclusion rate of the voriconazole-cyclodextrin inclusion complex freeze-dried powder obtained in Preparation Example 3 was 93.2%, and in a phosphate buffer solution with pH=7 and a saturated solution at 25°C, the dissolved concentration of voriconazole reached 18.0 mg / 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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a voriconazole aerosol inhaler, comprising the following raw materials in parts by mass: 8-13 parts of voriconazole-cyclodextrin inclusion compound freeze-dried powder, 100 parts of water for injection; the voriconazole-cyclodextrin inclusion compound freeze-dried powder; The dry powder is obtained by freeze-drying a solution of voriconazole, polyoxyethylene hydrogenated castor oil, an organic weak acid solution of pentaerythritol monostearate and an aqueous cyclodextrin solution together to form an inclusion compound. In the present invention, the compounding of polyoxyethylene hydrogenated castor oil and pentaerythritol monostearate is used as a solubilizer. In addition to smoothly solubilizing voriconazole in an organic weak acid to complete the inclusion with cyclodextrin, it can also make the obtained inclusion complex After the aerosol inhalation is reconstituted into freeze-dried powder, the blood concentration is stable after inhalation, which reduces the adverse reactions of voriconazole due to high blood concentration, and improves the safety of voriconazole.

Description

technical field [0001] The invention relates to the field of antifungal drugs, in particular to a voriconazole atomized inhaler and its application. Background technique [0002] Voriconazole, a derivative of fluconazole, is a triazole antifungal drug with broad-spectrum antibacterial activity, especially against Aspergillus. The therapeutic mechanism of voriconazole is to inhibit the demethylation of 14α-sterol mediated by cytochrome 450, thereby inhibiting the conversion of lanosterol to ergosterol, and the loss of ergosterol destroys the integrity of fungal cells, which leads to the apoptosis of fungi. The dosage forms that have been developed include intravenous injection and oral administration. At present, clinical applications and researches are mostly oral pharmaceuticals, including tablets, capsules, and dry suspensions. And for critically ill patients, elderly and young children and other patients with weak autonomy, oral preparations have the disadvantage of bei...

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 Patents(China)
IPC IPC(8): A61K9/72A61K31/506A61K47/14A61K47/44A61K47/69A61P11/00A61P31/10A61K9/19
CPCA61K31/506A61K47/6951A61K9/0078A61K47/44A61K47/14A61P31/10A61P11/00A61K9/19
Inventor 孔小轶李金花王蕾
Owner 北京海一药业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com