BT1718 in Patients with Advanced Solid Tumours.

Dose escalation will consist of Stage 1 and 2. Stage 1 patients will receive BT1718 intravenously twice a week (D: 1,4,8,11,15,18) for 3 out of 4 weeks. Starting dose will be 0.6mg/m2. Single patient cohorts will be explored, but it will change to 3 to 6 patients cohorts. Stage 2 patients will receive BT1718 intravenously once a week (D: 1,8,15) for 3 out of 4 weeks. This stage will have 3 to 6 patient cohorts until the recommended dose is established. The expansion phase will consist of two or more expansion cohorts to include tumour types known to commonly over-express MT1-MMP and where MT1-MMP overexpression is confirmed during prospective and retrospective (in appropriate patients) selection at enrolment. A squamous NSCLC and basket cohort will include approximately 16 patients each with high MT1-MMP levels. In the expansion cohorts BT1718 will be administered intravenously at the once weekly RP2D established in Phase I, Stage 2.