** Shares of Australia's OncoSil Medical OSL.AX rise as much as 46.2% to A$0.570, logging their best intraday pct gain since June 2, 2025
** Stock hits its highest level since March 16
** Medical device firm receives approval from Australian Therapeutic Goods Administration (TGA) for OncoSil device for treatment of pancreatic cancer in Australia
** Says device targets tumours directly within pancreas
** TGA is the Australian government's regulatory agency for medical products
** Stock down 45% this year, including the day's move
(Reporting by Rajasik Mukherjee in Bengaluru)
((Rajasik.Mukherjee@thomsonreuters.com))