Docetaxel albumin nano composition and preparation method thereof

A technology of nano-albumin and docetaxel, which is applied in the field of pharmaceutical preparations and can solve the problems of lack, no targeting, and low toxicity and side effects

Pending Publication Date: 2022-05-27
上海新衡基医药技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although docetaxel has a good antitumor effect, it still has the following defects in the practice of treatment: (1) docetaxel is almost insoluble in water, and a large amount of surfactants must be added to the clinically used injections, such as commercially available Docetaxel (Taxotere) contains a high concentration of Tween 80, including the alcohol-free formulation of Eagle Pharmaceuticals, which was approved by the FDA in 2015. Although it can be stored at room temperature and has a longer stable time than Taxotere after dilution, the prescription contains a large amount of Tween 80. The severe sensitization side effects caused by Wen-80 in clinical application have not yet been resolved, such as myelosuppression, allergic reactions, neurotoxicity, skin erythema, cardiovascular adverse reactions, etc.; (2) Docetaxel is a cytotoxic drug and has no Targeting, rapid systemic distribution and metabolism of the drug after injection administration, resulting in systemic toxic and side effects. Once overdose occurs in cancer patients for a long time, there is no antidote available; (3) fat emulsion for docetaxel Drug delivery systems such as microemulsions and liposomes have not made great progress in reducing adverse reactions and side effects
[0004] In summary, there is still a lack of a docetaxel pharmaceutical preparation with good curative effect and low toxic and side effects in this area.

Method used

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  • Docetaxel albumin nano composition and preparation method thereof
  • Docetaxel albumin nano composition and preparation method thereof
  • Docetaxel albumin nano composition and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0067] Preparation of docetaxel-albumin nanocomposite

[0068] The present invention adopts the emulsification method to prepare the albumin nanometer composition for injection, and can selectively adopt ultrasonic or high pressure homogenization process to further control the particle size. In one embodiment of the present invention, docetaxel in a given prescription is dissolved in an appropriate amount of ethanol or other suitable solvent, and stabilizers such as phospholipids and fatty acids are dissolved in an appropriate amount of dichloromethane, and the two are mixed as an oil phase ; Dissolve albumin in an appropriate amount of deionized water (water phase), drop the oil phase into the magnetically stirred water phase at room temperature or in an ice-water bath, and continue to stir for a certain period of time, and then remove ethanol and Dichloromethane to prepare docetaxel-loaded albumin nanocomposites.

[0069] In the present invention, after the docetaxel drug i...

Embodiment 1

[0084] Example 1: Prescription and preparation process of docetaxel albumin nanocomposite

[0085] Table 1 Proportion (mg) of each component in the formulation of docetaxel-encapsulated albumin nanocomposites

[0086]

[0087]

[0088] Dissolve docetaxel in prescription F01-20 in Table 1 in an appropriate amount of chloroform or other suitable solvent, dissolve the stabilizer in an appropriate amount of ethanol, and mix the two as an oil phase; dissolve albumin in an appropriate amount of deionized water. In water (aqueous phase), drop the oil phase into the water phase at room temperature or in an ice-water bath, stir and disperse the initial emulsification for a certain period of time, and then carry out nano-dispersion in a high-pressure homogenizer or an emulsifying machine, and then perform rotary evaporation or thin film in a water bath at 50°C. The organic solvent is removed by evaporation to obtain an albumin nanocomposition comprising docetaxel.

[0089] The resu...

Embodiment 2

[0095] Example 2: Characterization of Docetaxel Albumin Nanocomposition - Morphology and Particle Size

[0096] A small amount of albumin nanocomposites were taken on a copper mesh, negatively stained with phosphotungstic acid, and the morphology of the nanocomposites was observed under a transmission electron microscope. The particle size of the prepared docetaxel albumin nanocomposites was measured by dynamic light scattering particle size analyzer, and the average particle size was measured to be 132.4±0.59nm. The results of electron microscopy and particle size distribution are as follows: figure 1 shown in. The results show that the nano-composition of the present invention is spherical, and the appearance is round and relatively uniform.

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Abstract

The invention provides a docetaxel albumin nano composition and a preparation method thereof, and particularly provides a docetaxel protein nano preparation which comprises the following components in parts by weight: 1-30 parts of docetaxel, 5-50 parts of albumin and 5-85 parts of a stabilizer, and optional medicinal freeze-drying auxiliary materials.

Description

technical field [0001] The invention belongs to the field of pharmaceutical preparations, relates to a composition or compound used in the field of anti-tumor, and more particularly relates to a preparation method of a nano-composition comprising docetaxel, albumin and stabilizer as a prescription. Background technique [0002] In recent years, the incidence of tumor has risen sharply, its treatment is difficult and the mortality rate is high, and it has become the second leading cause of human death. According to reports, there were about 18.1 million new cancer cases and 9.6 million cancer deaths worldwide in 2018. Among them, there were more than 2.338 million deaths from malignant tumors in China, and the mortality rate exceeded 30%. For every 100 new cancer patients in the world, The Chinese accounted for 21, which has become a serious social problem. At present, the clinical treatment of advanced tumors is mostly combined with radiotherapy and chemotherapy to delay th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K9/19A61K47/24A61K47/26A61K47/42A61P35/00
CPCA61K9/19A61K47/24A61K47/26A61K47/42A61P35/00
Inventor 张奇志程云龙吴红兵王峰吴静曹锦旭王刘畅庞晓莹
Owner 上海新衡基医药技术有限公司
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