MEI Pharma Announces Results of Special Meeting of Stockholders

MEI Pharma, Inc. (NASDAQ: MEIP) (the "Company") today announced that, based on a count of the votes cast at the Company's Special Meeting of Stockholders, MEI, by a narrow margin, did not obtain the necessary stockholder votes to approve the merger agreement with Infinity Pharmaceuticals, Inc. ("Infinity"). The certified results show that 59.70% of outstanding shares were voted, of which 47.86% voted in favor of the proposed transaction, and 51.44% against. Accordingly, MEI has sent Infinity a notice terminating the merger agreement.

"While we believe the benefits of the Infinity transaction were compelling for MEI stockholders, we appreciate and value the perspectives of our stockholders," said David M. Urso, President and Chief Executive Officer of MEI Pharma. "Our Board and management team remain highly-focused on the potential for capturing the stockholder value inherent in the Company's current development pipeline, which includes Voruciclib and ME-344. With clinical data expected from both of our clinical-stage pipeline programs around year-end and capital to support our near-term development plans, we are focused on the potential opportunities for creating stockholder value."

MEI's clinical-stage development programs have the potential, in combination with current therapies, to overcome known resistance mechanisms and improve patient outcomes in cancer. This is supported by pre-clinical and clinical data showing potential anti-tumor activity and mechanistic proof of concept for the combinations being evaluated. Specifically:

• Voruciclib is an orally administered Cyclin-Dependent Kinase 9 (CDK9) inhibitor being clinically investigated for hematological malignancies in combination with Venclexta^®.
• ME-344 is a novel, mitochondrial inhibitor drug candidate targeting the OXPHOS pathway involved in the production of adenosine triphosphate ("ATP") being evaluated in combination with Avastin^®.

Voruciclib, in combination with Venclexta, and ME-344, in combination with Avastin, are expected to generate data around the end of this year, with the potential to demonstrate safety and preliminary evidence of efficacy for Voruciclib in patients with acute myeloid leukemia, and for ME-344 in patients with colorectal cancer.

The final vote count regarding the Special Meeting, certified by the independent Inspector of Election, will be filed with the Securities and Exchange Commission on a Form 8-K as soon as practicable, following the customary review and challenge period.

MEI will share further updates on its pipeline and opportunities for value-creation in an investor update call that will be scheduled in the coming days.

About MEI Pharma

MEI Pharma, Inc. (Nasdaq: MEIP) is a pharmaceutical company focused on developing potential new therapies for cancer. MEI Pharma's portfolio of drug candidates includes clinical stage candidates with differentiated mechanisms of action intended to address unmet medical needs and deliver improved benefit to patients, either as standalone treatments or in combination with other therapeutic options. For more information, please visit www.meipharma.com. Follow us on Twitter @MEI_Pharma and on LinkedIn.

Forward-Looking Statements

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