Mezagitamab

Lund, Sweden – April 8, 2025 – BioInvent International AB (“BioInvent”) (Nasdaq Stockholm: BINV), a biotech company focused on the discovery and development of novel and first-in-class immune-modulatory antibodies for cancer immunotherapy, today announces that it has earned a 1 million USD milestone payment, following Takeda’s (TSE:4502/NYSE:TAK) initiation of Phase 3 clinical trial of mezagitamab (TAK-079), identified from BioInvent’s proprietary n-CoDeR® antibody library. The study is evaluating this potential best-in-class anti-CD38 monoclonal antibody for persistent or chronic primary immune thrombocytopenia (ITP). “We are excited to see mezagitamab progress into Phase 3 trials, marking a significant step for Takeda and our n-CoDeR platform,” said Martin Welschof, Chief Executive Officer of BioInvent. “This milestone not only validates the consistent high quality of drug candidates identified from our n-CoDeR antibody library, but it also highlights the success of our out-licensing strategy and its ability to drive real-world impact through strategic partnerships.” Takeda is developing mezagitamab (TAK-079) under a royalty and milestone agreement with XOMA Corporation (NASDAQ: XOMA) under which Takeda is granted a sublicense to the BioInvent antibody. BioInvent and XOMA have a long-standing cross-licensing agreement covering BioInvent’s proprietary n-CoDeR antibody library and XOMA’s bacterial protein expression technology. About mezagitamabMezagitamab has received Orphan Drug Designation for the treatment of ITP and Fast Track Designation for treatment of chronic/persistent ITP from the U.S. Food and Drug Administration (FDA). For information about the ongoing Phase 3 study, please see clinicaltrials.gov: NCT06722235, “Study of Mezagitamab in Adults With Chronic Primary Immune Thrombocytopenia”. About BioInventBioInvent International AB (Nasdaq Stockholm: BINV) is a clinical-stage biotech company that discovers and develops novel and first-in-class immuno-modulatory antibodies for cancer therapy, with currently five drug candidates in six ongoing clinical programs in Phase 1/2 trials for the treatment of hematological cancer and solid tumors. The Company's validated, proprietary F.I.R.S.T™ technology platform identifies both targets and the antibodies that bind to them, generating many promising new immune-modulatory candidates to fuel the Company's own clinical development pipeline and providing licensing and partnering opportunities. The Company generates revenues from research collaborations and license agreements with multiple top-tier pharmaceutical companies, as well as from producing antibodies for third parties in the Company's fully integrated manufacturing unit. More information is available at www.bioinvent.com. For further information, please contact:Cecilia Hofvander, VP Investor RelationsPhone: +46 (0)46 286 85 50Email: cecilia.hofvander@bioinvent.comBioInvent International AB (publ)Co. Reg. No.: 556537-7263Visiting address: Ideongatan 1Mailing address: 223 70 LUNDPhone: +46 (0)46 286 85 50www.bioinvent.com The press release contains statements about the future, consisting of subjective assumptions and forecasts for future scenarios. Predictions for the future only apply as the date they are made and are, by their very nature, in the same way as research and development work in the biotech segment, associated with risk and uncertainty. With this in mind, the actual outcome may deviate significantly from the scenarios described in this press release.

Developed by Sanofi, CABLIVI is the first FDA-approved nanobody therapy for this condition. Increasing awareness, improved diagnostic rates, and rising demand for targeted therapies in hematology drive the market growth. With its niche indication and high treatment costs, CABLIVI holds a strong position in the rare disease therapeutics segment. LAS VEGAS, March 19, 2025 /PRNewswire/ -- DelveInsight's " CABLIVI Market Size, Forecast, and Market Insight Report" highlights the details around CABLIVI, a von Willebrand factor (vWF)-directed antibody fragment. The report provides product descriptions, patent details, and competitor products (marketed and emerging therapies) of CABLIVI. The report also highlights the historical and forecasted sales from 2020 to 2034 segmented into 7MM [the United States, the EU4 (Germany, France, Italy, and Spain), the United Kingdom, and Japan]. Ablynx NV's CABLIVI (caplacizumab-yhdp) Overview CABLIVI is an antibody fragment that targets von Willebrand factor (vWF) and is used to treat adult patients with acquired thrombotic thrombocytopenic purpura (aTTP) in combination with plasma exchange and immunosuppressive therapy. It works by binding to the A1-domain of vWF, preventing its interaction with platelets, which helps reduce vWF-mediated platelet adhesion and consumption. CABLIVI is approved in both the US and EU for treating aTTP. In 2024, CABLIVI sales reached €249 million, reflecting a 9.7% increase, driven by a rise in the number of patients identified for suitable treatment in the US, as well as new launches in Europe and other regions. The recommended CABLIVI dosing schedule is as follows: Day 1: Administer an 11 mg intravenous bolus injection at least 15 minutes before plasma exchange, followed by an 11 mg subcutaneous injection after the exchange on the same day. During Plasma Exchange Therapy: Administer 11 mg subcutaneously once daily after each plasma exchange session. After Plasma Exchange Therapy: Continue with 11 mg subcutaneous injections once daily for 30 days after the final plasma exchange. If signs of persistent underlying disease, such as low ADAMTS13 activity, are still present, treatment can be extended for up to 28 additional days. CABLIVI treatment should be discontinued if the patient experiences more than two recurrences of aTTP while on the medication. Learn more about CABLIVI projected market size for thrombocytopenia @ CABLIVI Market Potential Thrombocytopenia is a medical condition where the platelet count in the blood drops below the normal level (<150,000/µL). Common causes include heparin-induced thrombocytopenia, chemotherapy-induced thrombocytopenia, thrombocytopenia linked to chronic liver disease, immune thrombocytopenia (ITP), and thrombotic thrombocytopenic purpura (TTP). Among the 7MM, the United States reported the highest number of thrombocytopenia cases, accounting for about 40% of the total cases in 2023, according to DelveInsight. Treatment for thrombocytopenia varies based on its cause and severity, with the primary goal of preventing bleeding-related complications and improving patient outcomes. Approved therapies for thrombocytopenia in the US include MULPLETA, DOPTELET, TAVALISSE, PROMACTA, NPLATE, CABLIVI, GAMMAPLEX, OCTAGAM, RHOPHYLAC, and PRIVIGEN. Additionally, danaparoid, argatroban, and lepirudin are approved for treating thrombosis in patients with heparin-induced thrombocytopenia. For severe thrombocytopenia related to chronic liver disease, treatment options include platelet transfusion, splenic artery embolization, splenectomy, and transjugular intrahepatic portosystemic stent shunt (TIPSS) placement. The US holds approximately 60% of the thrombocytopenia market share, surpassing the combined market size of the EU4, the UK, and Japan. Market growth is expected to be driven by an increasing patient population, the introduction of new therapies, and deeper market penetration within the 7MM. Discover more about the thrombocytopenia market in detail @ Thrombocytopenia Market Report Emerging Competitors of CABLIVI The potential therapies that can mark a significant change in the thrombocytopenia treatment landscape and give tough competition to CABLIVI include Rilzabrutinib (Sanofi), Ianalumab (Novartis), Mezagitamab (Takeda), PF-06835375 (Pfizer), Povetacicept (Vertex), Cevidoplenib (Genosco/Oscotec), and Efgartigimod (ARGX-113) (Argenx), among others. In December 2024, Sanofi shared encouraging Phase III results at ASH for rilzabrutinib, its investigational oral BTK inhibitor, in patients with ITP. In June 2024, Takeda reported late-breaking Phase IIb data on Mezagitamab, highlighting its potential to revolutionize the treatment of Primary ITP. In Novartis' Q2 2024 update, the company forecasted key trial results: VAYHIT1 (NCT05653349) for first-line therapy, expected in 2026, and VAYHIT2 (NCT05653219) for second-line therapy, anticipated in 2025. Novartis also aims to file for ianalumabin approval in both first- and second-line ITP treatment by 2027 or later. To know more about the number of competing drugs in development, visit @ CABLIVI Market Positioning Compared to Other Drugs Key Milestones of CABLIVI In June 2022, at the 27th Annual European HematologyAssociation (EHA) Congress, Sanofi presented long-term safety and efficacy results from the post-HERCULES trial (NCT02878603), a three-year prospective follow-up study of patients with acquired thrombotic thrombocytopenic purpura (aTTP) who completed the Phase 3 HERCULES trial. In February 2019, the FDA approved CABLIVI (caplacizumab-yhdp) injection as the first therapy specifically indicated for treating adult patients with acquired thrombotic thrombocytopenic purpura (aTTP), a rare and life-threatening blood clotting disorder. It is to be used in combination with plasma exchange and immunosuppressive therapy. In September 2018, the European Commission approved CABLIVI (caplacizumab) for marketing, authorizing its use in treating adults experiencing an episode of acquired thrombotic thrombocytopenic purpura (aTTP), a rare blood-clotting disorder. CABLIVI is the first therapy specifically designed for aTTP treatment. In July 2017, Ablynx announced a research collaboration and global exclusive licensing agreement with Sanofi, aiming to develop and commercialize Nanobody-based therapies for treating various immune-mediated inflammatory diseases. Discover how CABLIVI is shaping the thrombocytopenia treatment landscape @ CABLIVI FDA Approval CABLIVI Market Dynamics The primary driver of CABLIVI's market growth is the increasing recognition and diagnosis of aTTP, coupled with improved access to specialized treatments. Growing awareness among healthcare providers and advancements in diagnostic capabilities have facilitated early and accurate diagnosis, thereby boosting the demand for targeted therapies like CABLIVI. The drug's ability to prevent microthrombi formation, shorten the duration of plasma exchange, and reduce the risk of relapses has positioned it as a preferred option in the treatment landscape for aTTP. Moreover, Sanofi's robust commercial infrastructure and strategic marketing efforts have further contributed to market penetration and adoption. Despite its therapeutic benefits, CABLIVI faces challenges related to its high cost and reimbursement complexities. The specialized nature of aTTP treatment, combined with the requirement for hospital-based administration and close monitoring, adds to the overall cost burden on healthcare systems and patients. Additionally, competition from alternative therapies, including plasma exchange and immunosuppressive treatments, may limit its market expansion. Regulatory hurdles and the need for long-term safety data could also impact the drug's market trajectory. The CABLIVI market is expected to grow steadily, driven by ongoing clinical research and potential label expansions into related thrombotic disorders. Increased investments in rare disease treatments and orphan drug incentives are likely to support market growth. Moreover, the rise in strategic collaborations and partnerships to improve patient access and streamline reimbursement processes could enhance market uptake. However, balancing pricing pressures with broader patient access will remain a key factor in sustaining long-term market performance. Dive deeper to get more insight into CABLIVI's strengths & weaknesses relative to competitors @ CABLIVI Market Drug Report Table of Contents Related Reports Acquired Thrombotic Thrombocytopenic Purpura Pipeline Acquired Thrombotic Thrombocytopenic Purpura Pipeline Insight – 2025 report provides comprehensive insights about the pipeline landscape, pipeline drug profiles, including clinical and non-clinical stage products, and the key acquired thrombotic thrombocytopenic purpura companies, including Sanofi, TargED Biopharmaceuticals, Takeda, Genentech, Alexion Pharmaceuticals, among others. Thrombocytopenia Market Thrombocytopenia Market Insights, Epidemiology, and Market Forecast – 2034 report deliver an in-depth understanding of the disease, historical and forecasted epidemiology, as well as the market trends, market drivers, market barriers, and key thrombocytopenia companies including Sanofi, Principia Biopharma, Baxalta, Takeda, Argenx, Millennium Pharmaceuticals, Biotest, GC Pharma, Genosco (Subsidiary of Oscotec), Rigel Pharmaceuticals, Kissei Pharmaceutical, Shionogi & Co., Ltd, Amgen, Novartis, Zenyaku Kogyo, among others. Thrombocytopenia Pipeline Thrombocytopenia Pipeline Insight – 2025 report provides comprehensive insights about the pipeline landscape, pipeline drug profiles, including clinical and non-clinical stage products, and the key thrombocytopenia companies, including Takeda, Argenx, Keros Therapeutics, Principia Biopharma, Momenta Pharmaceuticals, Veralox Therapeutics, Novartis Pharmaceuticals, Pfizer, HUTCHMED, Principia Biopharma, Genosco, UCB, among others. Immune Thrombocytopenia Market Immune Thrombocytopenia Market Insights, Epidemiology, and Market Forecast – 2034 report deliver an in-depth understanding of the disease, historical and forecasted epidemiology, as well as the market trends, market drivers, market barriers, and key immune thrombocytopenia companies including Rigel Pharmaceuticals, Kissei Pharmaceutical, Sobi (Dova Pharmaceuticals), Amgen, Argenx, among others. About DelveInsight DelveInsight is a leading Business Consultant and Market Research firm focused exclusively on life sciences. It supports pharma companies by providing comprehensive end-to-end solutions to improve their performance. Get hassle-free access to all the healthcare and pharma market research reports through our subscription-based platform PharmDelve . Contact Us Shruti Thakur [email protected] +14699457679 Logo: SOURCE DelveInsight Business Research, LLP WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED