Pramipexole sustained release tablet formulation and manufacturing method thereof and use thereof
US9616027B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2014 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Oct 9, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P25/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing the sustained-release tablets via direct compression process, wet granulation process or dry granulation process to obtain the formulations. The present invention also provides a use of the sustained-release tablet formulation of pramipexole in the preparation of pharmaceutical compositions. A sustained release tablet formulation has advantages as follows: breaking out patent monopoly of the innovator preparation, drug dissolution release effects in vitro can be achieved and probably clinical treatment effects can also be accomplished consistent with that of the innovator preparation; abandoning anionic polymers used in the innovator preparation such that making the drug release and absorption not being influenced by the patent body's gastric pH values, in order to avoid the disadvantages of the innovator preparation. Once the tablet formulation is authorized to marketing, the price will be lowered, capable of bringing out effective medical treatment and economical spending for patients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.