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Sacituzumab Govitecan Extends Survival in Metastatic Triple-Negative Breast Cancer

From the phase 3 ASCENT study, sacituzumab govitecan-hziy significantly extended overall survival and improved overall response rate and clinical benefit rate, compared to treatment of choice standard single-agent chemotherapy in brain metastases-negative patients with mTNBC who had previously received at least two prior therapies for metastatic disease.  

Patients treated with sacituzumab govitecan, despite having received a median of four prior anticancer regimens, showed a statistically significant and clinically meaningful improvement in OS with a median of 12.1 months (95 CI, 10.7-14.0) versus 6.7 months (95% CI, 5.8-7.7) for chemotherapy, with a HR of 0.48. 

Additionally, improvements in ORR (35%) and CBR (45%) were also reported with the therapy, compared to chemotherapy at 5% and 9%, respectively, according to a press release. 

Ten complete responses (4%) occurred with sacituzumab govitecan compared with two (1%) in the control group. 

“The randomized Phase 3 study results confirm that sacituzumab govitecan should be considered as a new standard of care in patients with third-line mTNBC," Aditya Bardia, MD, MPH, Director of Precision Medicine at the Center for Breast Cancer, Mass General Cancer Center and Assistant Professor of Medicine at Harvard Medical School, said in the release. 

The FDA approved sacituzumab govitecan under the Accelerated Approval Program as a third-line treatment in adult patients with mTNBC. It has a black box warning for severe neutropenia and severe diarrhea. 


By MD /alert Staff 

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