With accelerated approval in hand for Trodelvy (sacituzumab govitecan-hziy) to treat metastatic triple-negative breast cancer (mTNBC), Immunomedics Inc. is looking ahead to data related to the next indication for the antibody-drug conjugate (ADC) – urothelial tumors – “in the near future,” Chairman Behzad Aghazadeh told investors during a conference call.
Immunomedics Inc. gained accelerated FDA clearance for Trodelvy (sacituzumab govitecan-hziy) to treat patients with metastatic triple-negative breast cancer (TNBC) who have undergone at least two prior therapies. It’s the first antibody-drug conjugate (ADC) given the go-ahead specifically in relapsed/refractory TNBC and the first anti-Trop-2 ADC bound for the market. Trodelvy, which was granted breakthrough therapy designation and priority review, moved along faster thanks to the objective response rate (ORR) and duration of response (DoR) turned up by Morris Plains, N.J.-based Immunomedics in a single-arm, multicenter phase II study. Continued approval may be contingent on verifying clinical benefit in the confirmatory phase III experiment called Ascent, recently halted by the independent data safety monitoring committee due to compelling evidence of efficacy across multiple endpoints.
DUBLIN – Immunomedics Inc. is stopping the phase III Ascent trial of its antibody-drug conjugate, sacituzumab govitecan, in triple-negative breast cancer (TNBC) on the unanimous recommendation of the study’s independent data safety monitoring committee, after a scheduled look at the study data uncovered what the company called “compelling efficacy.”