IMM-101 is a suspension of heat-killed whole cell Mycobacterium obuense. Since it is a heat-killed preparation, treatment is not associated with the potential side-effects of delivering live or attenuated organisms.
Five studies with IMM-101 have been completed including a 110-patient randomised Phase II study in pancreatic cancer and exploratory studies in other solid tumours (melanoma, colorectal cancer and advanced melanoma).