Study study type PathologyT1T0Patientssample sizesROB Results deaths (OS) Eprogression or deaths (PFS) ERFS/DFS E

mBC - TNBC - L1 - all population breast cancer - triple negative mBC - Triple negative (TNBC) - 1st Line (L1) mBC - TNBC - L1 - all population

versus placebo plus SoC
pembrolizumab plus SoC
KEYNOTE-355 (all population), 2020
  NCT02819518
RCTmBC - TNBC - L1 - all populationPembrolizumab plus chemotherapyplacebo plus chemotherapypatients with with untreated locally recurrent inoperable or metastatic triple-negative breast cancer (all population)566 / 281low
inconclusive -11% -18%

mBC - TNBC - L1 - PDL1 positive breast cancer - triple negative mBC - Triple negative (TNBC) - 1st Line (L1) mBC - TNBC - L1 - PDL1 positive

versus placebo plus SoC
pembrolizumab plus SoC
KEYNOTE-355 (CPS>1), 2020
  NCT02819518
RCTmBC - TNBC - L1 - PDL1 positivePembrolizumab plus chemotherapyplacebo plus chemotherapypatients with with untreated locally recurrent inoperable or metastatic triple-negative breast cancer (PDL1 CPS>1)425 / 211low
suggested -14% -25%
KEYNOTE-355 (CPS>10), 2020
  NCT02819518
RCTmBC - TNBC - L1 - PDL1 positivePembrolizumab plus chemotherapyplacebo plus chemotherapypatients with with untreated locally recurrent inoperable or metastatic triple-negative breast cancer (PDL1 CPS>10)220 / 103low
conclusif demonstrated-27% demonstrated-34%