Keytruda Closing In On First-Line Metastatic Triple-Negative Breast Cancer

But Has Ground To Make Up On Tecentriq

An interim analysis of the Phase III KEYNOTE-355 study in triple-negative breast cancer patients reports that first-line pembrolizumab combined with chemotherapy has met the PFS primary endpoint, but Merck & Co is still a long way behind Roche’s Tecentriq in the additional indication.  

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A closely watched clinical study involving Merck & Co. Inc.’s anti-PD-1 therapy Keytruda (pembrolizumab) has reported promising results at an interim analysis, in combination with chemotherapy as a first-line therapy for metastatic triple-negative breast cancer.

The pivotal Phase III KEYNOTE-355 study met one of its dual primary endpoints, improving progression-free survival in metastatic triple-negative breast...

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