Innovent Biologics, Inc., a world-class biopharmaceutical company that develops and commercializes high quality medicines for the treatment of oncology, autoimmune, metabolic and other major diseases, announced positive updated results from the Incyte-sponsored Phase 2 trial of pemigatinib in patients with previously treated, advanced cholangiocarcinoma which were presented at the European Society for Medical Oncology (ESMO) 2019.
In December 2018, Innovent and Incyte entered into a strategic collaboration for three clinical-stage product candidates discovered and developed by Incyte, including pemigatinib (FGFR1/2/3 inhibitor), itacitinib (JAK1 inhibitor) and parsaclisib (PI3Kδ inhibitor). Under the terms of the agreement, Innovent has received the rights to develop and commercialize the three assets in hematology and oncology in Mainland China, Hong Kong, S.A.R., China, Macau, S.A.R., China and Taiwan, China.
The updated results from the Phase 2 FIGHT-202 trial evaluating pemigatinib, a selective fibroblast growth factor receptor (FGFR) inhibitor, as a treatment for patients with previously treated, locally advanced or metastatic cholangiocarcinoma presented at ESMO 2019 include the final result for the primary endpoint. In patients harboring FGFR2 fusions or rearrangements (Cohort A), pemigatinib monotherapy resulted in an overall response rate (ORR) of 36 percent (primary endpoint), and median progression free survival (PFS) of 6.9 months (secondary endpoint) with a median follow-up of 15 months. Pemigatinib was generally well tolerated.
The data support the planned submission of a New Drug Application (NDA) by Incyte to the U.S. Food and Drug Administration (FDA) for pemigatinib before the end of 2019.
Cholangiocarcinoma is a rare cancer that forms in the bile duct. It is classified based on its origin: intrahepatic cholangiocarcinoma (iCCA) occurs in the bile duct inside the liver and extrahepatic cholangiocarcinoma occurs in the bile duct outside the liver. Patients with cholangiocarcinoma are often diagnosed at a late or advanced stage when the prognosis is poor. The incidence of cholangiocarcinoma varies regionally and ranges between 0.3– 3.4 per 100,000 in North America and Europe. FGFR2 fusions or rearrangements occur almost exclusively in iCCA, where they are observed in 10-16 percent of patients.
Key Findings from FIGHT-202
Updated data presented at ESMO show that in patients with previously treated, locally advanced or metastatic cholangiocarcinoma with FGFR2 fusions or rearrangements (Cohort A, n=107), pemigatinib monotherapy resulted in a confirmed overall response rate (ORR) of 36 percent based on an independent central radiographic review, including 3 patients with a complete response (CR) and 35 patients with a partial response (PR). In these patients, the disease control rate (DCR) was 82 percent, median duration of response (DOR) was 7.5 months, and median progression free survival (PFS) was 6.9 months. Preliminary overall survival (OS) data were encouraging (median: 21.1 months) and follow-up will continue as these data are not yet mature.
About FIGHT-202
The FIGHT-202 Phase 2, open-label, multicenter study (NCT02924376) is evaluating the safety and efficacy of pemigatinib – a selective fibroblast growth factor receptor (FGFR) inhibitor – in adult (age ≥ 18 years) patients with previously treated, locally advanced or metastatic cholangiocarcinoma with documented FGF/FGFR status.
Patients were enrolled into one of three cohorts – Cohort A (FGFR2 fusions or rearrangements), Cohort B (other FGF/FGFR genetic alterations) or Cohort C (no FGF/FGFR genetic alterations). All patients received 13.5 mg pemigatinib orally once daily (QD) on a 21-day cycle (two weeks on/one week off) until radiological disease progression or unacceptable toxicity.
The primary endpoint of FIGHT-202 is overall response rate (ORR) in Cohort A, assessed by independent review per RECIST v1.1. Secondary endpoints include ORR in Cohorts B, A plus B, and C; progression free survival (PFS), overall survival (OS), duration of response (DOR), disease control rate (DCR) and safety in all cohorts.
About FIGHT
The FIGHT (FIbroblast Growth factor receptor in oncology and Hematology Trials) clinical trial program includes ong...
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