ImPassion 132

A Phase III, Randomised, Double-Blind, Placebo-Controlled, Multicentre Study Of The Efficacy And Safety Of Atezolizumab Plus Chemotherapy For Patients With Early Relapsing Recurrent (Inoperable Locally Advanced Or Metastatic) Triple-Negative Breast Cancer


This study will evaluate the efficacy and safety of atezolizumab plus chemotherapy compared with placebo plus chemotherapy in patients with inoperable recurrent triple-negative breast cancer (TNBC).

Study Arms

  • Experimental: Atezolizumab
  • Placebo Comparator: Placebo


  • Histologically confirmed triple negative breast cancer(TNBC) that is either locally recurrent, inoperable and cannot be treated with curative intent or is metastatic
  • Documented disease progression occurring within 12 months from the last treatment with curative intent
  • Have not received prior chemotherapy or targeted systemic therapy for their locally advanced inoperable or metastatic recurrence. Prior radiation therapy for recurrent disease is permitted
  • Measurable or non-measurable disease, as defined by RECIST 1.1
  • Availability of a representative formalin-fixed paraffin-embedded (FFPE) tumour block (preferred) or at least 25 unstained slides with an associated pathology report, if available