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

Slow-releasing injection contg anticarcinogen of Jixitabin

A technology of sustained-release injection and gemcitabine, which is applied in the field of compound anti-cancer drug sustained-release preparation, sustained-release injection and sustained-release implant, and can solve problems such as difference in sensitivity of chemotherapeutic drugs and failure of tolerance treatment.

Inactive Publication Date: 2006-11-15
SHANDONG LANJIN PHARMA +1
View PDF11 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the sensitivity of tumor cells to chemotherapeutic drugs varies greatly
Many tumor cells are not sensitive to drugs, and some tumor cells are sensitive in the early stage of chemotherapy, but quickly tolerate it
Especially when anticancer drugs, such as antimetabolites, are used alone, increased tolerance often leads to treatment failure

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] Put 80mg of polyphenylpropane (p-CPP: 20:80 of sebacic acid (SA)) copolymer into a container, add 100ml of dichloromethane, dissolve and mix well, then add 10mg Pemetrexed and 7-hydroxyl-staurosporine, re-shaken and spray-dried to prepare microspheres for injection containing 10% pemetrexed and 10% 7-hydroxyl-staurosporine . Then suspend the microspheres in physiological saline containing 15% mannitol to prepare the corresponding suspension-type sustained-release injection. The drug release time of the slow-release injection in physiological saline in vitro is 10-15 days, and the drug release time in mice subcutaneous is about 20-30 days. The viscosity of the injection is 400cp-600cp (at 20°C-30°C).

Embodiment 2

[0129] The method step of being processed into sustained-release injection is the same as in Example 1, but the difference is that the contained anticancer active ingredients and their weight percentages are:

[0130] (1) 1-40% Pemetrexed, Pemetrexed Disodium, Lumitrexed, Raltitrexed, Raltitrexed, Noratrexed, Carmofur, Dexrazoxane, Tega Fluorine, temozolomide, zalcitabine, emtricitabine, gallocitabine, ibacitabine, ancitabine, decitabine, flucitabine, enoxitabine, midazitabine, capecitabine Bine, gemcitabine, fludarabine, or cladribine;

[0131] (2) 1-40% of 7-hydroxyl-staurosporine, 7-O-alkyl-staurosporine, β-methoxystaurosporine, alkyl phosphorylcholine, hexadecyl phosphate Choline, octadecyl-(1,1-dimethyl-4-piperidine) phosphate, 1-O-hexadecyl-2-O-methyl-rac-glyceryl-3-phosphocholine , 1-O-octadecyl-2-O-methyl-rac-propanetriyl-3-phosphocholine, 1-O-octadecyl-2-O-methyl-sn-propanetriyl-3 - Phosphocholine, inositol polyphosphate, cyclosporine A, tetradecylphosphorylcholine...

Embodiment 3

[0134] Put 70 mg of polylactic acid (PLGA, 75:25) with a peak molecular weight of 65,000 into a container, add 100 ml of dichloromethane, dissolve and mix well, then add 15 mg of raltitrexed and 15 mg of 7-ethyl-10-hydroxycamptotheca Alkali, shake again and dry in vacuo to remove organic solvents. The dried drug-containing solid composition was frozen and pulverized to make a micropowder containing 15% raltitrexed and 15% 7-ethyl-10-hydroxycamptothecin, and then suspended in 1.5% sodium carboxymethylcellulose In physiological saline, the corresponding suspension-type sustained-release injection was prepared. The drug release time of the slow-release injection in physiological saline in vitro is 20-35 days, and the drug release time in mice subcutaneous is about 35-50 days. The viscosity of the injection is 480cp-620cp (at 20°C-30°C)

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

A slow-release anticancer injection contains the slow-release microspheres and solvent. Said slow-release microsphere contains the active anticancer component chosen from 13 antimetabolic medicines including gemcitabine, zalcitabine, etc and 3 cytotoxins including phosphoinositide 3-kinase inhibitor, pyrimidine analog or DNA repairase inhibitor, and the slow-release auxiliary.

Description

(1) Technical field [0001] The invention relates to a slow-release preparation of compound anticancer drugs, which belongs to the technical field of medicines. Specifically, the present invention provides a slow-release compound anticancer drug containing anti-metabolite drugs and / or their synergists, mainly slow-release injections and slow-release implants. (2) Background technology [0002] Cancer treatment mainly includes surgery, radiotherapy and chemotherapy. Among them, surgical treatment cannot remove scattered tumor cells, so it often recurs or causes tumor cells to spread and metastasize due to surgical stimulation; radiotherapy and traditional chemotherapy are not selective, and it is difficult to form an effective drug concentration or therapeutic dose in the local tumor, resulting in poor efficacy and high toxicity. Simply increasing the dose of drugs or radiation is limited by systemic toxicity. See Kong Qingzhong et al. "Intratumoral placement of cisplatin pl...

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): A61K9/10A61K31/7068A61K45/00A61K47/26A61K47/34A61K47/36A61P35/00
Inventor 孔庆忠孙娟刘玉燕宋邦强
Owner SHANDONG LANJIN PHARMA
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