Blueprint Medicines to Present Updated Data from Ongoing Phase 1 Clinical Trial of BLU-554 in Patients with Advanced Hepatocellular Carcinoma at ESMO 2017 Congress and 11th ILCA Annual Conference

On August 21, 2017 Blueprint Medicines Corporation (NASDAQ: BPMC), a leader in discovering and developing targeted kinase medicines for patients with genomically defined diseases, reported that updated data from its ongoing Phase 1 clinical trial evaluating BLU-554 in patients with advanced hepatocellular carcinoma (HCC) will be presented in oral presentations at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) 2017 Congress on September 10, 2017 in Madrid, Spain and at the 11th International Liver Cancer Association (ILCA) Annual Conference on September 17, 2017 in Seoul, South Korea (Press release, Blueprint Medicines, AUG 21, 2017, View Source;p=irol-newsArticle&ID=2294896 [SID1234520303]). BLU-554 is a potent and highly selective inhibitor of FGFR4.

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At ESMO (Free ESMO Whitepaper) and ILCA, Blueprint Medicines anticipates presenting updated safety and clinical activity data from its ongoing Phase 1 clinical trial of BLU-554. As of the most recent data cutoff date of August 18, 2017, 38 patients with FGFR4 pathway activation, as indicated by FGF19 overexpression, were evaluable for clinical activity, and an objective response rate of 16 percent (95 percent confidence interval 6-31 percent) was observed in this population.

"The preliminary BLU-554 data announced today continue to provide support for selective FGFR4 inhibition as a novel targeted treatment approach in biomarker-selected patients with hepatocellular carcinoma," said Andy Boral, M.D., Ph.D., Chief Medical Officer of Blueprint Medicines. "As we evaluate the results for BLU-554 in the context of historical data for currently approved therapies showing response rates of less than 10 percent, we are encouraged that radiographic tumor reductions were observed in a refractory population with progressive disease and few or no remaining therapeutic options. We look forward to sharing a comprehensive update on the ongoing BLU-554 clinical trial, as well as the path forward for further development, in September."

Details of the presentations are as follows:

2017 ESMO (Free ESMO Whitepaper) Congress

Presentation Title: Phase 1 Safety and Clinical Activity of BLU-554 in Advanced Hepatocellular Carcinoma (HCC)
Session Title: Developmental Therapeutics
Date & Time: Sunday, September 10, 2017 from 5:30 – 5:45 p.m. CET (11:30 – 11:45 a.m. ET)
Abstract ID: 365O
Location: Cordoba Auditorium, IFEMA, Feria de Madrid

11th ILCA Annual Conference

Presentation Title: Clinical Activity Of BLU-554, A Potent, Highly-Selective FGFR4 Inhibitor In Advanced Hepatocellular Carcinoma (HCC) With FGFR4 Pathway Activation
Session Title: General Session 5
Date & Time: Sunday, September 17, 2017 from 11:30 a.m. – 1:00 p.m. KST (Saturday, September 16, 2017 from 10:30 p.m. – 12:00 a.m. ET)
Abstract No: O-032
Location: Grand Hyatt Seoul