| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_80cbc9fc3a4bde51deab18978496c91b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-445
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K38-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-1647
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-485
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K38-09 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-445
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K38-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K38-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-485 |
| filingDate |
2022-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5b3a25a83bb2e91853f0fb8159bff3f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9d16e386c3ca25fb9e7d53ee506451f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70d587f018b2df962957148178549181
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_367b7ecf53d47c43692df4c225f79968 |
| publicationDate |
2022-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2022249452-A1 |
| titleOfInvention |
Sustained-release microparticles for sustained release of drug |
| abstract |
The present disclosure provides sustained-release microparticles comprising a biodegradable polymer and a drug, wherein the biodegradable polymer and the drug are uniformly distributed throughout the particles, and the microparticles do not show an initial excessive release of the drug, and are composed of uniform-sized particles having a particle size distribution width of 35 microns or less analyzed by a particle size analyzer and a specific surface area of the microparticles of 0.75×10 −1 to 2.0×10 −1 m 2 /g, thereby exhibiting a sustained release pattern of the drug. The injection composition comprising the drug contained in such microparticles can control the release of the drug for a selected period during injection administration to release an effective drug concentration constantly, and when formulated as an injection product, can reduce foreign body sensation and pain to the subject to enable an injection formulation with high compliance to be provided. |
| priorityDate |
2020-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |