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Infinity Reports Phase 1 Data Showing Encouraging Clinical Activity Of IPI-145 Across A Broad Range Of Blood Cancers At The 12th International Conference On Malignant Lymphoma

25 mg BID expansion cohorts

  1. Relapsed/refractory CLL, iNHL and MCL
  2. Treatment-naïve CLL in high-risk patients (over age 65 or having a 17p deletion or a p53 mutation)

75 mg BID expansion cohorts
  1. Relapsed/refractory CLL, iNHL and MCL
  2. T-cell lymphomas
  3. Aggressive B-cell lymphomas
  4. Myeloid neoplasms
  5. Acute lymphoblastic leukemia

About Infinity’s PI3K Program in Blood Cancers

Infinity is developing IPI-145, a potent, oral inhibitor of Class I phosphoinositide-3-kinase (PI3K)-delta and PI3K-gamma. The PI3Ks are a family of enzymes involved in multiple cellular functions, including cell proliferation and survival, cell differentiation, cell migration and immunity. 6 The PI3K-delta and PI3K-gamma isoforms are preferentially expressed in leukocytes (white blood cells), where they have distinct and mostly non-overlapping roles in immune cell development and function. Targeting PI3K-delta and PI3K-gamma may provide multiple opportunities to develop differentiated therapies for the treatment of hematologic malignancies and inflammatory diseases.

IPI-145, Infinity’s lead product candidate, is currently progressing in a Phase 2 study in patients with indolent non-Hodgkin lymphoma (iNHL) and in a Phase 1 study in patients with advanced hematologic malignancies. An investigator-sponsored Phase 1b, open-label, dose-escalation study of IPI-145 in patients with B-cell NHL, CLL and T-cell lymphoma in combination with rituximab (a monoclonal antibody therapy), bendamustine (a chemotherapy) or both rituximab and bendamustine is also open for enrollment.

Additionally, Infinity is conducting preclinical studies of IPI-443, its second oral PI3K-delta and PI3K-gamma inhibitor. IPI-443 has a distinct biochemical profile from IPI-145 and also has the potential to treat hematologic malignancies and inflammatory diseases.

About Infinity Pharmaceuticals, Inc.

Infinity is an innovative biopharmaceutical company dedicated to discovering, developing and delivering best-in-class medicines to people with difficult-to-treat diseases. Infinity combines proven scientific expertise with a passion for developing novel small molecule drugs that target emerging disease pathways. Infinity’s programs focused on the inhibition of phosphoinositide-3-kinase and heat shock protein 90 are evidence of its innovative approach to drug discovery and development. For more information on Infinity, please refer to the company’s website at

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. Such forward-looking statements include those regarding the Company’s expectations about: the therapeutic potential of PI3K inhibition, IPI-145 and IPI-443; progress in and plans for the development of IPI-145; plans to initiate additional clinical trials of IPI-145; and the Company’s ability to execute on its strategic plans. 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. For example, there can be no guarantee that Infinity will report data in the time frames it has estimated, that any product candidate Infinity is developing will successfully complete necessary preclinical and clinical development phases, or that development of any of Infinity’s product candidates will continue. Further, there can be no guarantee that any positive developments in Infinity’s product portfolio will result in stock price appreciation. Management’s expectations and, therefore, any forward-looking statements in this press release could also be affected by risks and uncertainties relating to a number of other factors, including the following: Infinity’s results of clinical trials and preclinical studies, including subsequent analysis of existing data and new data received from ongoing and future studies; the content and timing of decisions made by the U.S. FDA and other regulatory authorities, investigational review boards at clinical trial sites and publication review bodies; Infinity’s ability to obtain and maintain requisite regulatory approvals and to enroll patients in its clinical trials; unplanned cash requirements and expenditures; development of agents by Infinity’s competitors for diseases in which Infinity is currently developing or intends to develop its product candidates; and Infinity’s ability to obtain, maintain and enforce patent and other intellectual property protection for any product candidates it is developing. These and other risks which may impact management’s expectations are 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 May 7, 2013, 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.

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