Breakthroughs in Local Manufacturing and Reimbursement Access Emerging Preclinical Innovation Pipeline Three internally developed next-generation ADC candidates—CS5007 (EGFR/HER3 ADC), CS5008 (SSTR2/DLL3 ADC), and CS5006 (ITGB4 ADC)—will present preclinical research findings at AACR 2026, with IND submissions planned for 2026. Solid Financial Position SUZHOU, China, March 26, 2026 /PRNewswire/ -- CStone Pharmaceuticals ("CStone," HKEX: 2616), an innovation-driven biopharmaceutical company focused on the res ...

Core Viewpoint - CStone Pharmaceuticals has received a new indication approval from the UK MHRA for sugemalimab as a monotherapy for adult patients with unresectable stage III NSCLC, expanding its therapeutic applications and commercial potential globally [1][4]. Group 1: Product Approval and Indications - Sugemalimab is now approved as a monotherapy for adult patients with unresectable stage III NSCLC with PD-L1 expression on 1% of tumor cells and no sensitizing EGFR mutations or ALK, ROS1 genomic aberrations [1][5]. - The approval is based on the GEMSTONE-301 study, which showed statistically significant improvement in progression-free survival (PFS) and clinically meaningful prolongation of overall survival (OS) for patients with stage III NSCLC [4]. Group 2: Market Expansion and Commercialization - Sugemalimab has become one of only two PD-(L)1 antibodies approved for stage III NSCLC in Europe since its initial EU approval in July 2024, with a commercial footprint now extending to over 60 countries and regions [2][4]. - The product has been included in multiple national reimbursement systems, indicating its recognized clinical value and pharmacoeconomic benefit [2]. Group 3: Future Development and Regulatory Strategy - CStone plans to advance regulatory filings for sugemalimab in additional indications, including gastric cancer and esophageal squamous cell carcinoma [2]. - The company has established four commercialization partnerships for sugemalimab across Europe, the Middle East, Africa, and Latin America, actively rolling out its global commercial strategy [4]. Group 4: Company Overview - CStone Pharmaceuticals, established in late 2015, focuses on the research and development of therapies for oncology and other key disease areas, having launched 4 innovative drugs and secured approvals for 20 new drug applications covering 9 indications [6]. - The company's pipeline includes 16 promising candidates, featuring potentially first-in-class or best-in-class antibody-drug conjugates, multispecific antibodies, immunotherapies, and precision medicines [6].

TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Table of Contents As filed with the Securities and Exchange Commission on February 6, 2023 Registration No. 333-268613 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 AMENDMENT NO. 2 OMNIAB, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Delaware 8731 98-1584818 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identif ...