FGFR2 muts in cholangio + solid tumors
Fibroblast Growth Factor Receptor 2 (FGFR2) genomic alterations are rare oncogenic drivers that occur across multiple solid tumor indications. Clinical anti-tumor activity observed with pan-FGFR inhibitors (eg. pemigatinib, erdifitinib, infigratinib, TAS-120) has confirmed the oncogenic role of FGFR2 alterations, particularly in intrahepatic cholangiocarcinoma (ICC), the indication with the highest rate of FGFR2-fusions. Clinical activity with pan-FGFR inhibitors has also been observed in patients with other pathway alterations, such as FGFR mRNA overexpression, suggesting a potentially broader role for FGFR2 inhibitors. However, FGFR1-related toxicity (e.g. hyperphosphatemia; tissue mineralization) with pan-FGFR inhibitors limits dosing and Key Inclusion Criteria• Histologically or cytologically confirmed unresectable ICC or other advanced solid tumor• Documented FGFR2 gene fusion, mutation, or amplification per local testing of blood and/or tumor (See protocol for specified eligible alterations)• Disease that is refractory to standard therapy, has not adequately responded to standard therapy, disease for which no standard or curative therapy exists, or the patient must be intolerant to or have declined standard therapy• Measurable or evaluable disease (RECIST v1.1)• ECOG PS 0-2• Part 1 dose escalation patients must have Advanced solid tumor with FGFR genomic alterations• Part 2 dose expansion patients must additionally meet the following group requirements:o Group 1 - ICC with FGFR2 fusion previously treated with a pan-FGFR inhibitoro Group 2 - ICC with FGFR2 fusion NOT previously treated with a pan-FGFR inhibitoro Group 3 - Advanced solid tumor (other than ICC) with FGFR2 fusiono Group 4 - Advanced solid tumor with FGFR2 amplificationo Group 5 - Advanced solid tumor with an oncogenic FGFR2 mutationKey Exclusion Criteria• Presence of a primary driver alteration other than FGFR2 that is amenable to an approved targeted therapy• Ongoing, clinically significant corneal or retinal disorder• QT interval (QTcF) > 480 msec or history of prolonged QT syndrome, Torsades de pointes or familial history of prolonged QT syndrome• Clinically significant, uncontrolled cardiovascular disease• CNS metastases or primary CNS tumor that is associated with progressive neurologic symptoms• Local, hepatic therapy (eg. TACE or Y90) within 4 weeksefficacy. RLY-4008 is a highly selective, oral FGFR2 inhibitor, with 80 to > 5000 fold selectivity for FGFR2 relative to FGFR1, FGFR3 and FGFR4 and significant potency against oncogenic FGFR2 alterations and common resistance mutations (eg. gatekeeper mutations). This first-in-human study will define the MTD and RP2D, safety profile, PK, PD and preliminary anti-tumor activity of RLY-4008 in patients with ICC and other advanced solid tumors.
This study may be approprate for those with:New Diagnosed Cancer