QBiotics Group Limited (QBiotics), a life sciences company developing novel small molecule anticancer and wound healing pharmaceuticals, is pleased to announce that it has dosed the first patient in the Phase Ib/IIa clinical trial of the company's lead oncology molecule, tigilanol tiglate in combination with MSD's immune checkpoint inhibitor KEYTRUDA® (pembrolizumab) for patients with unresectable melanoma, the deadliest form of skin cancer.