ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,468, issued on Aug. 19, was assigned to Novartis AG (Basel, Switzerland).

"Crystalline forms of a succinate salt of 7-cyclopentyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-7H-pyrrolo[2,3-dpyrimidine-6-carboxylic acid dimethylamide" was invented by Arnaud Grandeury (Helfrantzkirch, France), Nilesh Patel (Gujarat, India), Frank Schaefer (Basel, Switzerland) and Daniel Zimmermann (Basel, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein are new crystalline form(s) of succinate salt(s) of 7-Cyclopentyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide (also known as ribociclib), phar...