Microparticles containing dutasteride, and preparation method therefor
US11911508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2019 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Jan 16, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/34
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to: sustained-release microparticles capable of maintaining, for a long time, effects of preventing, treating or alleviating benign prostatic hyperplasia and prostate cancer and effects of preventing hair loss and promoting hair growth according to the administration of microparticles containing dutasteride; and a preparation method therefor, and according to the use of a method for administering the particles to a patient through an injection, a patient does not have to directly store or handle the microparticles, unlike an oral dosage form, and thus storage and handling are simple. In addition, drug effects are maintained for a long period of time of 1-3 months and, simultaneously, administration through injection can be facilitated since foreign body sensation and pain are reduced when being administered to a patient through injection because of the constant average diameter of the particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.