RESUMO
ASP5878 is a selective small-molecule inhibitor of fibroblast growth factor receptors (FGFRs). This study investigated safety, tolerability, and antitumor effect of single and multiple oral doses of ASP5878 in patients with solid tumors. This phase 1, open label, first-in-human study comprised dose-escalation and dose-expansion parts. Primary objectives of the dose-escalation part were to identify the dose-limiting toxicity (DLT), maximum tolerated dose, and recommended dose of ASP5878 for the dose-expansion part. Nine dose cohorts of ASP5878 were evaluated (0.5â2 mg once daily; 2â40 mg twice daily [BID]). A single dose of ASP5878 was followed by a 2-day pharmacokinetic collection, and then either 28-day cycles of daily dosing (ASP5878 ≤ 10 mg BID) or 5-day dosing/2-day interruption (ASP5878 ≥ 20 mg BID). The primary objective of the dose-expansion part was to determine the safety of ASP5878 (16 mg BID) administered in 28-day cycles of 5-day dosing/2-day interruption in patients with urothelial carcinoma, hepatocellular carcinoma, or squamous cell lung carcinoma with FGFR genetic alterations. Safety was assessed by monitoring adverse events (AEs). Thirty-five patients were enrolled and 31 discontinued in the dose-escalation part; 51 patients were enrolled and 51 discontinued in the dose-expansion part. In the dose-escalation part, 66.7% of patients in the 20 mg BID 5-day dosing/2-day interruption group reported DLTs of hyperphosphatemia. The recommended dose for the dose-expansion part was 16 mg BID. Common AEs included retinal detachment, diarrhea, and increased alanine aminotransferase. One death occurred that was not related to ASP5878. ASP5878 was well tolerated with manageable toxicities including hyperphosphatemia.
Assuntos
Antineoplásicos/administração & dosagem , Carcinoma Hepatocelular/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias de Células Escamosas/tratamento farmacológico , Pirazóis/administração & dosagem , Pirimidinas/administração & dosagem , Receptores de Fatores de Crescimento de Fibroblastos/antagonistas & inibidores , Neoplasias Urológicas/tratamento farmacológico , Administração Oral , Adulto , Idoso , Antineoplásicos/efeitos adversos , Antineoplásicos/sangue , Antineoplásicos/farmacocinética , Carcinoma Hepatocelular/metabolismo , Feminino , Fator de Crescimento de Fibroblastos 23 , Fatores de Crescimento de Fibroblastos/sangue , Humanos , Neoplasias Hepáticas/metabolismo , Neoplasias Pulmonares/metabolismo , Masculino , Dose Máxima Tolerável , Pessoa de Meia-Idade , Neoplasias de Células Escamosas/metabolismo , Hormônio Paratireóideo/sangue , Fosfatos/sangue , Pirazóis/efeitos adversos , Pirazóis/sangue , Pirazóis/farmacocinética , Pirimidinas/efeitos adversos , Pirimidinas/sangue , Pirimidinas/farmacocinética , Resultado do Tratamento , Neoplasias Urológicas/metabolismo , Adulto JovemRESUMO
The 27th joint meeting of the European Organization for Research and Treatment of Cancer, National Cancer Institute and the American Association of Cancer Research (EORTC-NCI-AACR) International Conference on Molecular Targets and Cancer Therapeutics was held this year in Boston. Approximately 3,000 international academics, scientists and pharmaceutical industry representatives discussed new discoveries in the field of molecular biology of cancer and presented the latest information on drug discovery, preclinical research, clinical research and target selection in oncology. This report summarizes data on advances in cancer drug discovery.