Kineta and Samsung Biologics Announce Development and Manufacturing Agreement for Anti-VISTA Antibody Immunotherapy

Kineta to leverage Samsung Biologics' development and manufacturing expertise to advance KVA12.1 to IND

Samsung Biologics San Francisco R&D center and South Korea headquarters to offer a seamless,end-to-end CDMO service

INCHEON,South Korea and SEATTLE,July 20,2021 --Samsung Biologics (KRX: 207940.KS),one of the world's leading contract development and manufacturing organization (CDMO),signed a strategic partnership agreement with Kineta,Inc.,a clinical-stage biotech company developing novel immunotherapies in oncology. Samsung Biologics will provide end-to-end CDMO service from cell line development,clinical drug substance,and drug product manufacturing services to support IND filing for KVA12.1,Kineta's novel anti-VISTA antibody in development for the treatment of solid tumors.

Samsung Biologics and Kineta Announce CDMO Agreement

VISTA is a key driver of the immunosuppressive tumor microenvironment (TME) and is overexpressed on myeloid-derived suppressor cells (MDSC) and regulatory T cells (Tregs). It is a critical myeloid cell immune-checkpoint,and VISTA blockade can reprogram suppressive myeloid cells and reactivate anti-tumor immune function. Preclinical studies demonstrate single agent anti-tumor activity with KVA12.1,and also demonstrate that targeting VISTA in combination with PD-1,PD-L1 or CTLA-4 can significantly improve the anti-tumor efficacy of those checkpoint inhibitors. Kineta's KVA12.1 aims to reprogram the TME in hard-to-treat solid tumors.

The manufacturing cell line will be developed with support from Samsung Biologics' R&D Center in San Francisco,and its corresponding clinical trial materials will be manufactured at Samsung Biologics headquarters in Incheon,South Korea.

"We are very glad to be partnering with Kineta,to provide support in bringing this cancer immunotherapy to market," said John Rim,CEO of Samsung Biologics. "We will fully utilize our capabilities and streamlined end-to-end processes from both our headquarters and US R&D Center,to enable high-quality development of KVA12.1 with faster speed to accelerate Kineta's success."

"Establishing this strategic partnership with Samsung is a critical step for Kineta as we advance KVA12.1 to IND and into first-in-human clinical trials next year",said Shawn Iadonato,PhD,Chief Executive Officer at Kineta. "We are excited to collaborate with Samsung to initiate and scale up drug product manufacturing of our VISTA immunotherapy".

Samsung Biologics offers seamless one-stop CDMO research and development services both at its headquarters in Incheon,South Korea and its newly built R&D Center in San Francisco. Bringing quality-driven development services at a greater speed,the company delivers cell line development to drug substance manufacturing in six months,and to drug product manufacturing in seven months,the fastest pace in the industry. Currently building its fourth and largest facility in Incheon,Korea,Samsung Biologics will have 620,000 liters of biomanufacturing capacity upon completion of the plant in 2023.

About Kineta,Inc.

Kineta,Inc. is a clinical stage biotechnology company committed to developing disruptive life science technologies that address unmet patient needs. We have leveraged our expertise in immunology to advance a focused pipeline of investigational drugs in oncology. We actively collaborate with a broad array of private,government and industry partners to advance our innovative products. For more information on Kineta visit our website,www.kinetabio.com,follow us on Twitter,LinkedIn and Like us on Facebook.

About Samsung Biologics Co.,Ltd.

Samsung Biologics (KRX: 207940.KS) is a fully integrated CDMO offering state-of-the-art contract development,manufacturing,and laboratory testing services. With proven regulatory approvals,the largest capacity,and the fastest throughput,Samsung Biologics is an award-winning partner of choice and is uniquely able to support the development and manufacturing of biologics products at every stage of the process while meeting the evolving needs of biopharmaceutical companies worldwide. For more information,visit www.samsungbiologics.com.

NOTICE: This document contains certain forward-looking statements,including without limitation statements regarding Kineta's plans for pre-clinical and clinical studies,regulatory filings,investor returns and anticipated drug effects in human subjects. You are cautioned that such forward-looking statements are not guarantees of future performance and involve risks and uncertainties inherent in Kineta's businesses which could significantly affect expected results,including without limitation progress of drug development,ability to raise capital to fund drug development,clinical testing and regulatory approval,developments in raw material and personnel costs,and legislative,fiscal,and other regulatory measures. All forward-looking statements are qualified in their entirety by this cautionary statement,and Kineta does not undertake any obligation to revise or update any forward-looking statement to reflect events or circumstances after the issuance of this press release.

Kineta Contact

Jacques Bouchy

SVP Business Development and Corporate Communications

jbouchy@kineta.us

(206) 378-0400

Samsung Biologics Contact

Senior Director of Global PR

Claire Kim

cair.kim@samsung.com

View original content to download multimedia:https://www.prnewswire.com/news-releases/kineta-and-samsung-biologics-announce-development-and-manufacturing-agreement-for-anti-vista-antibody-immunotherapy-301337225.html