Newly diagnosed, non-metastatic early-stage triple-negative or HER2+ breast cancer
Conditions
Brief summary
Presence/ of two-fold increase in GzmB+ CD8+ T cell levels from baseline to post-treatment window in biopsies.
Detailed description
Changes in CD8+, PD-L1, MHC-I and % of Ki67 expression from baseline (pre-study) to end of study-treatment biopsies, Changes from baseline tumor tissue to end of treatment in immune infiltrates, immune-related gene expression, Incidence, nature and severity of Adverse Events graded according to NCI-CTCAE v5.0 collected during treatment and up to 4 weeks post-surgery, Clinical response after experimental therapy, defined as a > 30% decrease in tumor diameter from baseline breast ultrasound based on investigator assessment, pCR defined as the absence of any residual invasive cancer based on histological evaluation of the resected specimen during definitive breast cancer surgery, Rate of anti-Pembrolizumab antibodies at day 1 of cycle 2 Pembrolizumab (only patients in TNBC cohort, who will have Pembrolizumab as neoadjuvant systemic treatment).
Interventions
Sponsors
Eligibility
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Presence/ of two-fold increase in GzmB+ CD8+ T cell levels from baseline to post-treatment window in biopsies. | — |
Secondary
| Measure | Time frame |
|---|---|
| Changes in CD8+, PD-L1, MHC-I and % of Ki67 expression from baseline (pre-study) to end of study-treatment biopsies, Changes from baseline tumor tissue to end of treatment in immune infiltrates, immune-related gene expression, Incidence, nature and severity of Adverse Events graded according to NCI-CTCAE v5.0 collected during treatment and up to 4 weeks post-surgery, Clinical response after experimental therapy, defined as a > 30% decrease in tumor diameter from baseline breast ultrasound based on investigator assessment, pCR defined as the absence of any residual invasive cancer based on histological evaluation of the resected specimen during definitive breast cancer surgery, Rate of anti-Pembrolizumab antibodies at day 1 of cycle 2 Pembrolizumab (only patients in TNBC cohort, who will have Pembrolizumab as neoadjuvant systemic treatment). | — |
Countries
France