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Subsequent event | 3 Months Ended
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Mar. 31, 2020
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Subsequent event | 17. Subsequent event In April 2020, the FDA approved PEMAZYRE (pemigatinib), a selective fibroblast growth factor receptor (FGFR) inhibitor, for the treatment of adults with previously treated, unresectable locally advanced or metastatic cholangiocarcinoma with an FGFR2 fusion or other rearrangement as detected by an FDA-approved test. PEMAZYRE is the first and only FDA-approved treatment for this indication, which was approved under accelerated approval based on overall response rate and duration of response. We have retained all rights to PEMAZYRE globally, other than those granted to Innovent Biologics, Inc. to develop and commercialize pemigatinib in hematology and oncology in mainland China, Hong Kong, Macau and Taiwan. ​ ​

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 + Details
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