FDA Approves Pemazyre for Cholangiocarcinoma
FDA has approved an Incyte Corp. NDA for Pemazyre (pemigatinib) for treating adults with certain types of previously treated, advanced cholangiocarcinoma, a rare cancer that forms in bile ducts. “At diagnosis, a majority of patients with cholangiocarcinoma have advanced disease, meaning that the disease is no longer treatable with surgery,” an FDA release says. Approval was based on clinical trial data from 107 patients who had received prior treatment.
“The trial used established criteria to measure how many patients experienced a complete or partial shrinkage of their tumors during treatment (overall response rate),” FDA says. The overall response rate was 36%, with 2.8% of patients having a complete response and 33% having a partial response. Of the 38 patients who had a response, 24 patients (63%) had a response lasting six months or longer and seven patients (18%) had a response lasting 12 months or longer. The most common adverse reactions occurring in 20% or more of patients were hyperphosphatemia and hypophosphatemia (electrolyte disorders), alopecia, diarrhea, nail toxicity, fatigue, dysgeusia (taste distortion), nausea, constipation, stomatitis (sore or inflammation inside the mouth), dry eye, dry mouth, decreased appetite, vomiting, joint pain, abdominal pain, back pain and dry skin.