** Shares of Clarity Pharmaceuticals CU6.AX jumps 12.4% to A$1.885, highest since April 3
** The radiopharmaceutical company gets R&D tax incentive refund to develop its Targeted Copper Theranostic (TCT) platform to diagnose and treat various cancers
** Co also signs deal for supply of copper-64 isotope, which is used along with copper-67 in TCT platforms
** Despite the day's gains, the stock is down about 55% YTD
(Reporting by Jasmeen Ara Shaikh in Bengaluru)
((JasmeenAraIslam.Shaikh@thomsonreuters.com;))