On March 23, 2021 Incyte (Nasdaq:INCY) reported that the Japanese Ministry of Health, Labour and Welfare (MHLW) has approved Pemazyre (pemigatinib), a selective fibroblast growth factor receptor (FGFR) inhibitor, for the treatment of patients with unresectable biliary tract cancer (BTC) with a fibroblast growth factor receptor 2 (FGFR2) fusion gene1, worsening after cancer chemotherapy (Press release, Incyte, MAR 23, 2021, View Source [SID1234576994]).

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"The MHLW approval of Pemazyre is an important milestone for the BTC community, and underscores our commitment to finding and delivering solutions for patients with significant unmet medical needs," said Lothar Finke, M.D., Ph.D., General Manager, Incyte Asia. "BTC is a rare and serious condition, and we are proud that with the support of the MHLW we will be able to bring a new targeted treatment to more patients around the world."

BTC is a rare cancer that forms in the bile duct. Cholangiocarcinoma, a subtype of BTC, is classified based on its origin: intrahepatic, which occurs in the bile duct inside the liver and extrahepatic, which occurs in the bile duct outside the liver. Patients with BTC are often diagnosed at a late or advanced stage when the prognosis is poor2,3. FGFR2 fusions or rearrangements, which occur almost exclusively in intrahepatic cholangiocarcinoma, are observed in a small percentage of Japanese patients with BTC4,5,6,7.

The approval is based on data from the FIGHT-202 study evaluating the safety and efficacy of pemigatinib in adult patients with previously treated, locally advanced or metastatic cholangiocarcinoma with documented FGF/FGFR status. In FIGHT-202 patients harboring FGFR2 fusions or rearrangements (Cohort A), Pemazyre monotherapy resulted in an overall response rate of 36% (primary endpoint), and median DOR of 7.49 months (secondary endpoint). The most frequent treatment-emergent adverse event (TEAE) were grade ≤2 hyperphosphatemia (58.2%). Other frequent TEAEs (all grades) observed in ≥30% of patients were alopecia, diarrhea, fatigue, dysgeusia, nausea, constipation, stomatitis, dry mouth and decreased appetite. The majority of these TEAEs were grade ≤2. The TEAE with grade ≥3 that occurred in ≥10% of patients was hypophosphatemia.

Previously, the MHLW granted Orphan Drug Designation for Pemazyre – a designation granted to investigational compounds intended to treat rare diseases that affect fewer than 50,000 people in Japan, and for which there is a high medical need8. Designated orphan drugs are eligible for priority review for marketing authorizations to ensure supply to clinical settings at the earliest opportunity8.

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) 1, 2, 3 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; progression free survival (PFS), overall survival (OS), duration of response (DOR), disease control rate (DCR) and safety in all cohorts.

For more information about FIGHT-202, visit View Source

About FIGHT

The FIGHT (FIbroblast Growth factor receptor in oncology and Hematology Trials) clinical trial program includes ongoing Phase 2 and 3 studies investigating safety and efficacy of pemigatinib therapy across several FGFR-driven malignancies. Phase 2 monotherapy studies include FIGHT-202, as well as FIGHT-201 investigating pemigatinib in patients with metastatic or surgically unresectable bladder cancer, including with activating FGFR3 mutations or fusions/rearrangements; FIGHT-203 in patients with myeloproliferative neoplasms with activating FGFR1 fusions/rearrangements; FIGHT-207 in patients with previously treated, locally-advanced/metastatic or surgically unresectable solid tumor malignancies harboring activating FGFR mutations or fusions/rearrangements, irrespective of tumor type.

FIGHT-302 is a Phase 3 study investigating pemigatinib as a first-line treatment for patients with cholangiocarcinoma with FGFR2 fusions or rearrangements.

About Pemazyre (pemigatinib)

Pemazyre is a kinase inhibitor indicated in the United States for the treatment of adults with previously treated, unresectable locally advanced or metastatic cholangiocarcinoma with a fibroblast growth factor receptor 2 (FGFR2) fusion or other rearrangement as detected by an FDA-approved test9. This indication is approved under accelerated approval based on overall response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s).

In Japan, Pemazyre is approved for the treatment of patients with unresectable biliary tract cancer (BTC) with a fibroblast growth factor receptor 2 (FGFR2) fusion gene, worsening after cancer chemotherapy.

Pemazyre is a potent, selective, oral inhibitor of FGFR isoforms 1, 2 and 3 which, in preclinical studies, has demonstrated selective pharmacologic activity against cancer cells with FGFR alterations.

Pemazyre is marketed by Incyte in the United States and will be marketed by Incyte in Japan. Incyte has granted Innovent Biologics, Inc. rights to develop and commercialize pemigatinib in hematology and oncology in Mainland China, Hong Kong, Macau and Taiwan. Incyte has retained all other rights to develop and commercialize pemigatinib outside of the United States.

Additionally, the European Medicines Agency’s (EMA) Committee for Medicinal Products for Human Use (CHMP) has issued a positive opinion recommending the conditional marketing authorization of pemigatinib for the treatment of adults with locally advanced or metastatic cholangiocarcinoma with a fibroblast growth factor receptor 2 (FGFR2) fusion or rearrangement that have progressed after at least one prior line of systemic therapy.

Pemazyre is a trademark of Incyte Corporation.