Ezabenlimab

· BI 765063 in combination with programmed cell death-1 (PD1) inhibitor antibody ezabenlimab + cetuximab demonstrated a well-tolerated safety profile and potentially promising efficacy signals as second-line treatment in patients with recurrent/metastatic (R/M) head and neck squamous cell carcinoma (HNSCC). · Next generation SIRP α inhibitor BI 770371 was shown to be well tolerated alone and in combination with PD1 inhibitor ezabenlimab in a dose escalation trial in patients with advanced solid tumors. BI 770371 is currently being further investigated in a Phase 1b study in first-line patients with R/M HNSCC. Ingelheim, Germany, 22 May 2025 – Boehringer Ingelheim today announced that new clinical data from two early-stage trials targeting the signal regulatory protein α (SIRP α ) innate immune checkpoint will be presented at the 2025 American Society of Clinical Oncology (ASCO) Annual Meeting, May 30 - June 3, 2025, in Chicago, IL, USA. In a Phase 1b study conducted by Boehringer, its potential, first-in-class SIRP α monoclonal antibody, BI 765063, demonstrated a manageable safety profile as well as preliminary signs of immune activation and additive antitumor activity when combined with PD-1 inhibitor ezabenlimab and cetuximab in patients with recurrent/metastatic (R/M) head and neck squamous cell carcinoma (HNSCC). [1] Additionally, in an open-label, Phase I trial conducted by Boehringer, its next-generation SIRP α monoclonal antibody, BI 770371, alone and in combination with the PD-1 inhibitor ezabenlimab, was shown to be well tolerated in patients with advanced solid tumors. There were no dose-limiting toxicities in either treatment arm, and the maximum tolerated dose was not reached in either group. [2] “The preliminary results from these early-stage programs are encouraging and further strengthen Boehringer’s robust immuno-oncology pipeline aimed at accelerating next-generation cancer therapies to address high unmet patient needs,” said Mike Akimov, Head of Medicine, Therapy Area Oncology at Boehringer Ingelheim. “Boehringer is developing various complementary approaches to activate the immune system against cancer cells and SIRP α blockade paired with a PD-1 inhibitor is a promising strategy. We look forward to seeing if this dual activation may lead to a broader and more sustained anti-tumor response as the programs progress. ” BI 765063 and BI 770371 are designed to block the “don’t eat me” signal that cancer cells use to hide from the immune system. By targeting SIRP α , these antibodies help immune cells like macrophages recognize and destroy tumor cells, bolstering the body’s natural defenses. [3] Both antibodies have been developed in partnership with OSE, with Boehringer solely responsible for future clinical development and commercialization. Boehringer will move forward with the improved next generation SIRP α inhibitor antibody BI 770371, which will now be tested in a Phase 1b study. Presentation Details: Title: An Open-Label, Phase Ib Trial of the SIRP α Inhibitor BI 765063 in Combination with the PD-1 Inhibitor Ezabenlimab and Cetuximab in Patients (pts) with Head and Neck Squamous Cell Carcinoma ​ Abstract Number: 6019 Session Type/Title: Rapid Oral Abstract – Developmental Therapeutics – Immunotherapy Date/Time: 01 June 2025 – 11:30am – 1:30pm CDT Title: An Open-label, Phase I Trial of the SIRP α Monoclonal Antibody, BI 770371, Alone and in Combination with the PD-1 Inhibitor Ezabenlimab in Patients with Advanced Solid Tumors Abstract Number: 2515 Session Type/Title: Rapid Oral Abstract – Developmental Therapeutics – Immunotherapy Date/Time: 01 June 2025 – 11:15am – 12:45pm CDT Boehringer Ingelheim Boehringer Ingelheim is a biopharmaceutical company active in both human and animal health. As one of the industry’s top investors in research and development, the company focuses on developing innovative therapies that can improve and extend lives in areas of high unmet medical need. Independent since its foundation in 1885, Boehringer Ingelheim takes a long-term perspective, embedding sustainability along the entire value chain. More than 54,500 employees serve over 130 markets to build a healthier, more sustainable and equitable tomorrow. Learn more at https://www.boehringer-ingelheim.com (Global). OSE Immunotherapeutics OSE Immunotherapeutics is a biotech company dedicated to developing first-in-class assets in immuno-oncology (IO) and immuno-inflammation (I&I) that address the unmet patient needs of today and tomorrow. We partner with leading academic institutions and biopharmaceutical companies in our efforts to develop and bring to the market transformative medicines for people with serious diseases. OSE Immunotherapeutics is based between Nantes and Paris and is quoted on Euronext. Additional information about OSE Immunotherapeutics assets is available on the Company’s website: www.ose-immuno.com . Click and follow us on LinkedIn. Intended Audiences Notice This press release is issued from our Corporate Headquarters in Ingelheim, Germany and is intended to provide information about our global business. Please be aware that information relating to the approval status and labels of approved products may vary from country to country, and a country-specific press release on this topic may have been issued in the countries where we do business. Forward-looking statements This press release contains express or implied information and statements that might be deemed forward-looking information and statements in respect of OSE Immunotherapeutics. They do not constitute historical facts. These information and statements include financial projections that are based upon certain assumptions and assessments made by OSE Immunotherapeutics’ management considering its experience and its perception of historical trends, current economic and industry conditions, expected future developments and other factors they believe to be appropriate. These forward-looking statements include statements typically using conditional and containing verbs such as “expect”, “anticipate”, “believe”, “target”, “plan”, or “estimate”, their declensions and conjugations and words of similar import. Although the OSE Immunotherapeutics management believes that the forward-looking statements and information are reasonable, the OSE Immunotherapeutics’ shareholders and other investors are cautioned that the completion of such expectations is by nature subject to various risks, known or not, and uncertainties which are difficult to predict and generally beyond the control of OSE Immunotherapeutics. These risks could cause actual results and developments to differ materially from those expressed in or implied or projected by the forward-looking statements. These risks include those discussed or identified in the public filings made by OSE Immunotherapeutics with the AMF. Such forward-looking statements are not guarantees of future performance. This press release includes only summary information and should be read with the OSE Immunotherapeutics Universal Registration Document filed with the AMF on April 30, 2024, including the annual financial report for the fiscal year 2023, available on the OSE Immunotherapeutics’ website. Other than as required by applicable law, OSE Immunotherapeutics issues this press release at the date hereof and does not undertake any obligation to update or revise the forward-looking information or statements. Contacts Boehringer Ingelheim Linda Ruckel +1 203-791-6672 linda.ruckel@boehringer-ingelheim.com Reinhard Malin +49 (6132) 77-90815 reinhard.malin@boehringer-ingelheim.com OSE Immunotherapeutics Fiona Olivier fiona.olivier@ose-immuno.com Sylvie Détry sylvie.detry@ose-immuno.com French Media Contact FP2COM Florence Portejoie fportejoie@fp2com.fr +33 6 07 768 283 U.S. Media Contact Rooney Partners LLC Kate Barrette kbarrette@rooneypartners.com +1 212 223 0561 [1] An open-label, phase Ib trial of the SIRP α inhibitor BI 765063 in combination with the PD-1 inhibitor ezabenlimab and cetuximab in patients (pts) with head and neck squamous cell carcinoma. - ASCO [1] An open-label, phase I trial of the SIRP α monoclonal antibody, BI 770371, alone and in combination with the PD-1 inhibitor ezabenlimab in patients with advanced solid tumors. - ASCO [3] Lopez-Yrigoyen, M., et al. (2017). Anti-SIRP α antibody immunotherapy enhances neutrophil and macrophage antitumor activity. Proceedings of the National Academy of Sciences, 114(33), 201710877. https://doi.org/10.1073/pnas.1710877114*:contentReference[oaicite:2]{index=2} Legal Disclaimer: EIN Presswire provides this news content "as is" without warranty of any kind. We do not accept any responsibility or liability for the accuracy, content, images, videos, licenses, completeness, legality, or reliability of the information contained in this article. If you have any complaints or copyright issues related to this article, kindly contact the author above.

OSE-230 is a ChemR23, a G-Protein coupled receptor (GPCR) targeting monoclonal antibody. Image Credit: Poetra.RH / Shutterstock. AbbVie has signed a partnership and licensing agreement with OSE Immunotherapeutics for the latter’s monoclonal antibody OSE-230 in a deal worth up to $713m. OSE-230 is a monoclonal antibody that targets ChemR23, a G-Protein coupled receptor (GPCR). The therapy can potentially resolve chronic inflammation and modulate the function of macrophages and neutrophils. It is currently in preclinical development. Following the news, OSE’s stock was up by more than 55% in trading today. The French pharmaceutical company’s market cap stands at $111.2m. Under the collaboration agreement, AbbVie will pay $48m in upfront payment for the exclusive global licence of the therapy. OSE will also be in line to receive up to $665m in milestone-based payments along with tiered royalties on net sales. OSE has a pipeline of multiple monoclonal antibody candidates that it is developing in collaboration with other pharmaceutical companies. The company is developing two signal regulatory protein α (SIRPα) targeting monoclonal antibodies—BI 765063/ OSE-172 and BI 770371—in collaboration with Boehringer Ingelheim. BI 765063 is being evaluated as a combination therapy with different cancer therapies such as Boehringer’s ezabenlimab, BI 836880, chemotherapy, and Eli Lilly’s Erbitux (cetuximab) in a Phase I trial (NCT05249426). BI 770371 is being evaluated as a monotherapy and in combination with a PD1 inhibitor, BI 754091, in an international Phase I dose escalation and expansion trial (NCT05327946) in patients with solid tumours. OSE is also developing an anti-CD28 selective monoclonal antibody FR104/VEL-101 in partnership with Denmark-based Veloxis Pharmaceuticals. It is being researched as a treatment to help prevent organ rejection in people who have had a kidney transplant. In February 2022, the therapy received a fast track designation by the FDA for prophylaxis against transplant rejection. Veloxis is planning Phase II trials for the subcutaneous therapy. AbbVie has also made recent investments related to antibody therapies. In December 2023, it partnered with BigHat Biosciences to identify and develop antibody therapies in oncology and neuroscience indications. On a larger scale, in November 2023, AbbVie announced a $10.1bn ImmunoGen acquisition deal. The antibody-drug conjugate (ADC) Elahere (mirvetuximab soravtansine-gynx) was a central part of the deal. The therapy was granted priority review by the US Food and Drug Administration with a Prescription Drug User Fee Act (PDUFA) action date of 5 April 2024.