Phase II clinical trial - Sein Néoadjuvant

Neo-CheckRay is a multicenter, open-label phase II study that randomizes luminal B breast cancer subjects candidate for neo-adjuvant chemotherapy in a 1:1:1 ratio in 3 arms:;1.the combination of weekly paclitaxel followed by dose-dense doxorubicin-cyclophosphamide (ddAC) and pre-operative radiation therapy (boost dose) on the primary tumour;2.arm 1 with the addition of the anti-PD-L1 antibody durvalumab;3.arm 2 with the addition of the anti-CD73 antibody oleclumab The primary tumour will be excised 2-6 weeks after completion of ddAC. A safety run-in is planned for the 6 first subjects before starting the randomized phase II trial.