Ya-Ching Changchien

Title: The Innovations of Ya-Ching Changchien

Introduction

Ya-Ching Changchien is a notable inventor based in San-Min Dist., Taiwan. He has made significant contributions to the field of pharmaceuticals, particularly in the development of oral formulations. With a total of 2 patents to his name, Changchien's work focuses on enhancing the bioavailability and release profiles of various drugs.

Latest Patents

Changchien's latest patents include a process for preparing an oral sustained-release formulation of felodipine. This invention relates to a method that involves mixing felodipine with an ionic surfactant or hydrophilic polymer, along with a release-controlling excipient. The resulting pharmaceutical composition demonstrates an improved dissolution rate for the insoluble drug while maintaining a sustained release profile and superior bioavailability. Another significant patent is a method for preparing an oral formulation containing acid-sensitive drugs. This method includes spreading a solution or suspension of stabilizers, solvents, and acid-sensitive drugs onto a core made from excipients, followed by drying to create an active ingredient layer.

Career Highlights

Changchien is currently associated with Standard Chemical & Pharmaceutical Co., Ltd., where he continues to innovate in the pharmaceutical sector. His work has been instrumental in developing formulations that improve drug delivery and efficacy.

Collaborations

Changchien has collaborated with notable colleagues, including Fang-Hsiung Hsiao and Chien-Chu Lin, who contribute to the research and development efforts in their field.

Conclusion

Ya-Ching Changchien's contributions to pharmaceutical innovations highlight his commitment to improving drug formulations. His patents reflect a deep understanding of drug delivery systems, which can significantly impact patient care and treatment outcomes.