Infinity to Host Investor Reception and Webcast at SITC

November 6, 2017 at 8:02 AM EST
- Company to Review Clinical and Translational Data from Completed Monotherapy Dose-Escalation Component of Phase 1/1b Study of IPI-549 in Patients with Advanced Solid Tumors -
- Webcast to Begin at 6:30 a.m. ET -

CAMBRIDGE, Mass., Nov. 6, 2017 /PRNewswire/ -- Infinity Pharmaceuticals, Inc. (NASDAQ: INFI) today announced that it will host a reception for investors and analysts on Friday, November 10, 2017, from 6:00 a.m. to 8:00 a.m. to discuss the clinical development of IPI-549, including a review of data from the ongoing Phase 1/1b clinical study. The reception will take place in conjunction with the 2017 Society for Immunotherapy of Cancer (SITC) Annual Meeting at the Gaylord National Hotel and Convention Center in National Harbor, MD. IPI-549 is an orally administered immuno-oncology development candidate that selectively inhibits phosphoinositide-3-kinase gamma (PI3K-gamma) and is believed to be the only PI3K-gamma inhibitor in clinical development.

Featured speakers at the reception will include:

  • David Hong, M.D., Deputy Chair, Department of Investigational Cancer Therapeutics, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX
  • Taha Merghoub, Ph.D., Co-Director, Ludwig Collaborative Laboratory and the Swim Across America Laboratory at Memorial Sloan Kettering

The presentation portion of the reception will be webcast beginning at 6:30 a.m. ET. The webcast and accompanying slides can be accessed in the "investors/media" section of the company's website, A replay of the event will also be available.

About the IPI-549 and the Ongoing Phase 1 Study
IPI-549 is an investigational, orally administered immuno-oncology development candidate that selectively inhibits PI3K-gamma. In preclinical studies, IPI-549 reprograms macrophages from a pro-tumor, M2, to an anti-tumor, M1, phenotype and is able to overcome resistance to checkpoint inhibition as well as to enhance the activity of checkpoint inhibitors.1,2 As such, IPI-549 may have the potential to treat a broad range of solid tumors and represents a potentially complementary approach to restoring anti-tumor immunity in combination with other immunotherapies such as checkpoint inhibitors.

A Phase 1 study of IPI-549 in patients with advanced solid tumors is ongoing to evaluate the safety, tolerability, activity, pharmacokinetics and pharmacodynamics of IPI-549 as a monotherapy and in combination with Opdivo in approximately 200 patients with advanced solid tumors.3 The four-part study includes monotherapy and combination dose-escalation components, in addition to monotherapy expansion and combination expansion components. Patient enrollment is complete in monotherapy dose-escalation, and monotherapy expansion is ongoing. Combination dose-escalation is also ongoing, and combination expansion is expected to begin in the second half of 2017.

The combination expansion component includes multiple cohorts designed to evaluate IPI-549 in patients with specific types of cancer, including patients with non-small cell lung cancer (NSCLC), melanoma, and head and neck squamous cell carcinoma (HNSCC) whose tumors show initial resistance or subsequently develop resistance to immune checkpoint blockade therapy. This combination expansion will also include a cohort of patients with triple negative breast cancer (TNBC) who have not been previously exposed to immune checkpoint blockade therapy. Although there has been great progress in the treatment of cancer, there remains a need for additional treatment options. NSCLC, melanoma, HNSCC and TNBC account for more than 22 percent of all new cancer cases in the U.S.4,5 

IPI-549 is an investigational compound and its safety and efficacy has not been evaluated by the U.S. Food and Drug Administration or any other health authority.

About Infinity
Infinity is an innovative biopharmaceutical company dedicated to advancing novel medicines for people with cancer. Infinity is developing IPI-549, an oral immuno-oncology development candidate that selectively inhibits PI3K-gamma. A Phase 1 study in patients with advanced solid tumors is ongoing. For more information on Infinity, please refer to Infinity's website at

Cautionary Note Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995 including those regarding the company's expectations about the timing and type of data presentations, the therapeutic potential of PI3K-gamma inhibition and of IPI-549, alone or in combination with other agents, and clinical trial plans regarding IPI-549. Such statements are subject to numerous important factors, risks and uncertainties that may cause actual events or results to differ materially from the company's current expectations, including, for example, that there is no guarantee that IPI-549 will successfully complete necessary preclinical and clinical development phases, or gain regulatory approval, and other risks described in greater detail under the caption "Risk Factors" included in Infinity's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (SEC) on August 3, 2017, and other filings filed by Infinity with the SEC. Any forward-looking statements contained in this press release speak only as of the date hereof, and Infinity expressly disclaims any obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise.

OPDIVO® is a registered trademark of Bristol-Myers Squibb.

Jaren Irene Madden, Senior Director, Investor Relations and Corporate Communications
617-453-1336 or

1 Kaneda, M., Messer, K., Ralainirina, N., Li, H., et al. PI3Kγ is a molecular switch that controls immune suppression. Nature, 2016 Nov;539:437-442. 
2 De Henau, O., Rausch, M., Winkler, D., Campesato, L., et al. Overcoming resistance to checkpoint blockade therapy by targeting PI3Kγ in myeloid cells. Nature, 2016 Nov;539:443-447., NCT02637531.
4American Cancer Society, Cancer Facts and Statistics 2017, and, Last Accessed September 19, 2017.
5Conquer Cancer Foundation, Head and Neck Cancer Statistics,, Last Accessed September 19, 2017.

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SOURCE Infinity Pharmaceuticals, Inc.