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Pieris Pharmaceuticals Presents Preclinical Data for GPC3/4-1BB Bispecific PRS-342 at the 2019 American Association for Cancer Research (AACR) Annual Meeting

April 2, 2019
BOSTON, MA / ACCESSWIRE / April 2, 2019 / Pieris Pharmaceuticals, Inc. (NASDAQ: PIRS), a clinical-stage biotechnology company advancing novel biotherapeutics through its proprietary Anticalin® technology platform for respiratory diseases, cancer

BOSTON, MA / ACCESSWIRE / April 2, 2019 / Pieris Pharmaceuticals, Inc. (NASDAQ: PIRS), a clinical-stage biotechnology company advancing novel biotherapeutics through its proprietary Anticalin® technology platform for respiratory diseases, cancer and other indications, today announced the presentation of preclinical data for PRS-342, a GPC3/4-1BB immuno-oncology bispecific drug candidate, at a poster session at the 2019 American Association for Cancer Research (AACR) Annual Meeting.

The poster, titled “Costimulatory T-cell engagement by PRS-342, a GPC3/4-1BB bispecific molecule, leads to activation of T cells and tumor growth inhibition in a HCC humanized mouse model,” demonstrated that T-cell activation by PRS-342 led to NF-kB activation, increased production of IL-2 and dose-dependent cytolysis of GPC3-expressing tumor cells. PRS-342 also demonstrated a localized increase of tumor-infiltrating lymphocyte (TIL) levels in a humanized hepatocellular carcinoma (HCC) xenograft mouse model. The data presented suggest potent T-cell activation that is strictly dependent on the presence of GPC3-positive tumor cells. A copy of the poster presentation is available on the publications section of the Pieris website.

About Pieris Pharmaceuticals

Pieris is a clinical-stage biotechnology company that discovers and develops Anticalin protein-based drugs to target validated disease pathways in a unique and transformative way. Our pipeline includes an inhaled Anticalin protein to treat uncontrolled asthma, immuno-oncology multi-specifics tailored for the tumor microenvironment, and a half-life-optimized Anticalin protein to treat anemia. Proprietary to Pieris, Anticalin proteins are a novel class of therapeutics validated in the clinic and by partnerships with leading pharmaceutical companies. Anticalin® is a registered trademark of Pieris. For more information, visit www.pieris.com.

Forward Looking Statements

This press release contains forward-looking statements as that term is defined in Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Statements in this press release that are not purely historical are forward-looking statements. Such forward-looking statements include, among other things, references to novel technologies and methods and our business and product development plans, including the advancement of our proprietary and co-development programs into and through the clinic. Actual results could differ from those projected in any forward-looking statements due to numerous factors. Such factors include, among others, our ability to raise the additional funding we will need to continue to pursue our business and product development plans; the inherent uncertainties associated with developing new products or technologies and operating as a development stage company; our ability to develop, complete clinical trials for, obtain approvals for and commercialize any of our product candidates, including our ability to recruit and enroll patients in our studies; our ability to address the requests of the FDA; competition in the industry in which we operate and market conditions. These forward-looking statements are made as of the date of this press release, and we assume no obligation to update the forward-looking statements, or to update the reasons why actual results could differ from those projected in the forward-looking statements, except as required by law. Investors should consult all of the information set forth herein and should also refer to the risk factor disclosure set forth in the reports and other documents we file with the SEC available at www.sec.gov, including without limitation the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2018 and the Company’s Quarterly Reports on Form 10-Q.

Company Contact:

Allan Reine

SVP & Chief Financial Officer

+1 857 444 4276

Investor Relations Contact:

Maria Kelman

Director, Investor Relations

+1 857 362 9635

SOURCE: Pieris Pharmaceuticals, Inc.