Of 17 patients evaluable for response, disease control rate (CR+PR+SD) was 76.4 % including 2 patients who achieved partial response...Responders were a patient with sarcomatoid renal cell carcinoma harboring EWSR1-POU5F1 fusion, who remains on therapy for more than 18 months...Sapanisertib in combination with carboplatin plus paclitaxel demonstrated a manageable safety profile, with preliminary antitumor activity observed in patients with advanced malignancies harboring mTOR pathway alterations.