Quantum Leap Healthcare Collaborative and Athenex Announce the Selection of Oral Paclitaxel plus Encequidar in Combination with dostarlimab, an anti-PD-1, in the I-SPY 2 TRIAL targeting Stage 2/3 HER2+ and HER2- Breast Cancers - Seite 3

About Athenex, Inc.

Founded in 2003, Athenex, Inc. is a global clinical stage biopharmaceutical company dedicated to becoming a leader in the discovery, development and commercialization of next generation drugs for the treatment of cancer. Athenex is organized around three platforms, including an Oncology Innovation Platform, a Commercial Platform and a Global Supply Chain Platform. The Company’s current clinical pipeline is derived from four different platform technologies: (1) Orascovery, based on P-glycoprotein inhibitor, (2) Src kinase inhibition, (3) T-cell receptor-engineered T-cells (TCR-T), and (4) Arginine deprivation therapy. Athenex’s employees worldwide are dedicated to improving the lives of cancer patients by creating more active and tolerable treatments.  Athenex has offices in Buffalo and Clarence, New York; Cranford, New Jersey; Houston, Texas; Chicago, Illinois; Hong Kong; Taipei, Taiwan; multiple locations in Chongqing, China; Manchester, UK; Guatemala City, Guatemala and Buenos Aires, Argentina. For more information, please visit http://www.athenex.com.

Company Forward Looking Statements

Except for historical information, all of the statements, expectations, and assumptions contained in this press release are forward-looking statements. These forward-looking statements are typically identified by terms such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “explore,” “foresee,” “goal,” “guidance,” “intend,” “likely,” “may,” “plan,” “potential,” “predict,” “preliminary,” “probable,” “project,” “promising,” “seek,” “should,” “will,” “would,” and similar expressions. Actual results might differ materially from those explicit or implicit in the forward-looking statements. Important factors that could cause actual results to differ materially include: the development stage of the company’s primary clinical candidates and related risks involved in drug development, clinical trials, regulation, manufacturing and commercialization; our ability to obtain and maintain regulatory approvals for our product candidates; the company’s reliance on third parties for success in certain areas of Athenex’s business; the company’s history of operating losses and need to raise additional capital to continue as a going concern; uncertainties around the company’s ability to meet funding conditions under its financing agreements and access to capital thereunder; risks and uncertainties related to the COVID-19 pandemic and its potential impact on the company’s operations, cash flow and financial condition; our ability to integrate acquired assets and businesses into our existing operations; competition; intellectual property risks; risks relating to doing business internationally and in China; the risk of production slowdowns or stoppages or other interruptions at the company’s Chongqing facilities; and the other risk factors set forth from time to time in Athenex’s SEC filings, copies of which are available for free in the Investor Relations section of the company’s website at http://ir.athenex.com/phoenix.zhtml?c=254495&p=irol-sec or upon request from the Investor Relations Department. All information provided in this release is as of the date hereof and Athenex assumes no obligation and does not intend to update these forward-looking statements, except as required by law.