• CD37-targeted radioimmunotherapy with 177Lu-lilotomab satetraxetan (Betalutin®) was effective in five out
of seven ABC-DLBCL cell lines.
• Treatment resistance in two double-hit/double-expressor ABC-DLBCL cell lines is not due to loss of CD37
expression or 177Lu-lilotomab satetraxetan (Betalutin®) binding.
• Drug library screening identified combinations of 177Lu-lilotomab satetraxetan (Betalutin®) with mitotic kinase
inhibitors or selected DNA targeting agents, such as topoisomerase or histone deacetylase inhibitors, to
overcome treatment resistance.
• Synergistic interaction of 177Lu-lilotomab satetraxetan and the dual inhibitor of cyclin-dependent kinases
CDK1/2 and Aurora kinases AURKA/B, JNJ-7706621, breaks treatment resistance by potentiating inhibition
of cell proliferation and induction of apoptosis.
• Next steps is to study the combination of 177Lu-lilotomab satetraxetan (Betalutin®) and mitotic kinase inhibitors
in aggressive DLBCL pre-clinical models.