GSK’s patent on lapatinib ditosylate revoked by IPAB
GSK’s granted patent IN221171 (‘171) on lapatinib ditosylate (marketed as Tykerb), a tyrosine kinase inhibitor for treating breast cancer, was revoked by IPAB by its order of 27th July 2013. A revocation application was filed by Fresenius Kabi Oncology Limited.…