Bio-Thera Solutions Announces Initiation of Phase I Clinical Trial for BAT1308, a Monoclonal Antibody Targeting PD-1

GUANGZHOU, China–(BUSINESS WIRE)–#PD1–Bio-Thera Solutions, Ltd. (SHA: 688177), a commercial-stage pharmaceutical company, today announced that dosing has begun in a Phase I clinical study to compare the pharmacokinetics and safety of BAT1308, a monoclonal antibody targeting PD-1 in cancer patient volunteers.

�PD-1 is a validated drug target. BAT1308 has demonstrated a very attractive preclinical profile.” said Dr. Shengfeng Li, CEO, Bio-Thera Solutions. “We have multiple immune-oncology (IO) assets in our pipeline targeting tumor infiltrating regulatory T cells (Tregs). We plan to explore combinations of BAT1308 with those IO assets targeting tumor infiltrating Tregs and other IO assets in our innovative pipeline to treat a broad range of cancers.”

The Phase 1, multicenter, open-label, dose-escalation clinical trial of BAT1308 is designed to assess the safety and tolerability of BAT1308 as a single agent. The study is expected to enroll subjects with advanced solid tumor. Key objectives in the study include determining maximum tolerated dose, pharmacokinetics and preliminary anti-tumor activity. Disease-specific expansion cohorts will be enrolled at the maximally tolerated or biologically relevant dose.

Bio-Thera Solutions is developing several additional innovative oncology assets directed at important IO targets, including TIGIT, CTLA4, OX40, CD47 and TGF? and IO bispecifics targeting synergistic targets like PD-L1/CD47.

About Bio-Thera Solutions

Bio-Thera Solutions, Ltd., a leading global biotechnology company in Guangzhou, China, is dedicated to researching and developing novel therapeutics for the treatment of cancer, autoimmune, cardiovascular diseases, and other serious unmet medical needs, as well as biosimilars for existing, branded biologics to treat a range of cancer and autoimmune diseases. A leader in next generation antibody discovery and engineering, the company has advanced five candidates into late stage clinical trials and has one approved product, QLETLI, in China. In addition, the company has multiple promising candidates in early clinical trials and IND-enabling studies, focusing on innovative targets in immuno-oncology and autoimmune diseases. For more information, please visit www.bio-thera.com/en/ or follow us on Twitter (@bio_thera_sol) and wechat (Bio-Thera).

Cautionary Note Regarding Forward-Looking Statements

This news release contains certain forward-looking statements relating to BAT1308 or the product pipelines in general of Bio-Thera Solutions. Readers are strongly cautioned that reliance on any forward-looking statements involves known and unknown risks and uncertainties. The forward-looking statements include, among others, those containing “could,” “may,” “should,” “will,” “would,” “anticipate,” “believe,” “plan,” “promising,” “potentially,” or similar expressions. They reflect the company’s current views with respect to future events that are based on what the company believes are reasonable assumptions in view of information currently available to Bio-Thera Solutions, and are not a guarantee of future performance or developments. Actual results and events may differ materially from information contained in the forward-looking statements as a result of a number of factors, including, but not limited to, risks and uncertainties inherent in pharmaceutical research and development, such as the uncertainties of pre-clinical and clinical studies, for example, the development processes could be lengthy and high in vitro affinity may not translate to desired results in vivo or successful clinical studies. Other risks and uncertainties include challenges in obtaining regulatory approvals, manufacturing, marketing, competition, intellectual property, product efficacy or safety, changes in global healthcare situation, changes in the company’s financial conditions, and changes to applicable laws and regulations, etc. Forward-looking statements contained herein are made only as of the date of their initial publication. Unless required by laws or regulations, Bio-Thera Solutions undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events, changes in the company’s views or otherwise.

Contacts

Bio-Thera Solutions, Ltd.:

Bert E. Thomas IV +1.410.627.1734

bethomas@bio-thera.com