Lung-Chi J Yuan

Title: Innovations by Lung-Chi J Yuan

Introduction

Lung-Chi J Yuan is a notable inventor based in Foster City, CA (US). He has made significant contributions to the field of pharmaceutical formulations, holding 2 patents that showcase his innovative approach to enhancing the stability and effectiveness of nucleotide analogs.

Latest Patents

One of his latest patents focuses on pharmaceutical formulations. This invention provides compositions comprising the nucleotide analog 9-[2-[bis[(pivaloyloxy)methyl]phosphono]methoxy]ethyl]adenine and an alkaline excipient, with or without L-carnitine-L-tartrate. The compositions are noted for being more stable than those previously described. Additionally, the invention outlines methods for creating these compositions and their intermediates.

Another significant patent by Yuan is related to the composition and method for storing nucleotide analogs. This invention offers compositions and methods designed to prevent the appearance of visually detectable precipitate in an aqueous solution containing 5-250 mg/mL of the phosphonate nucleotide analog. The solution can remain stable for at least six months at 22 degrees Celsius. The composition includes a phosphonate nucleotide analog and a sufficient amount of a divalent or trivalent metal cation sequestering agent, such as about 0.1% w/v EDTA, along with a sufficiently low concentration of a divalent or trivalent metal cation and a suitable pH in water.

Career Highlights

Lung-Chi J Yuan is currently associated with Gilead Sciences, Inc., where he continues to contribute to advancements in pharmaceutical research and development. His work has been instrumental in improving the stability and efficacy of pharmaceutical compositions.

Collaborations

Yuan collaborates with various professionals in his field, including his coworker Terrence C Dahl, to further enhance the impact of his inventions.

Conclusion

Lung-Chi J Yuan's innovative contributions to pharmaceutical formulations demonstrate his commitment to advancing medical science. His patents reflect a deep understanding of the complexities involved in creating stable and effective compositions.