CHICAGO – An investigational targeted therapy for multiple myeloma delayed disease progression in patients for whom as many as five prior lines of therapy had failed.
Daratumumab, an experimental antibody targeted to the CD38 receptor expressed at high levels on the surface of myeloma cells, was associated with a 29.2% overall response rate (ORR) at a median follow-up of 9.4 months, including three patients with a complete remission, Dr. Saad Zafar Usmani, a hematologist at Levine Cancer Institute-Carolinas Healthcare System in Charlotte, N.C., said in a video interview.
Dr. Usmani says that daratumumab monotherapy produced unprecedented overall responses that deepened over time in this heavily pretreated multiple myeloma patient population and that the results highlight the potential of daratumumab as a novel, well-tolerated, single-agent therapy that might be combined with existing therapies for treatment of refractory disease.