A Phase 1 Study of [225Ac]-FPI-1434 Injection

This is a first-in-human Phase 1/2, non-randomized, multi-centre, open-label clinical study designed to investigate safety, tolerability, PK, and preliminary anti-tumour activity of \[225Ac\]-FPI-1434 (radioimmuno-therapeutic agent) in patients with solid tumours that demonstrate uptake of \[111In\]-FPI-1547 (radioimmuno-imaging agent), and to establish the maximum tolerated dose (MTD) and/or the recommended Phase 2 dose (RP2D) of repeat doses of \[225Ac\]-FPI-1434 Injection in patients with solid tumours that demonstrate uptake of \[111In\]-FPI-1547 (radioimmuno-imaging agent).