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ROCKVILLE, Md. and SUZHOU, China, April 7, 2024 /PRNewswire/ -- Innovent Biologics, Inc. ("Innovent") (HKEX: 01801), a world-class biopharmaceutical company that develops, manufactures and commercializes high quality medicines for the treatment of oncology, cardiovascular and metabolic, autoimmune, ophthalmology and other major diseases, announces that preclinical data on multiple novel bispecific antibodies as well as antibody-drug-conjugates (ADCs) from its oncology pipeline are presented at the American Association for Cancer Research (AACR) Annual Meeting 2024. Late-Breaking Research: Experimental and Molecular Therapeutics 1 Topic: IBI3001: a potentially first-in-class site-specific glycan-conjugated B7-H3/EGFR bispecific ADC for multiple solid tumors Abstract Number: LB055 Presentation Form: Poster Presentation Time : Sunday Apr 7, 2024 1:30 PM - 5:00 PM Location: Poster Section 53 Presenting Author: Dr. Kaijie He IBI3001 is a potentially first-in-class bispecific ADC against B7-H3 and EGFR that is site-specifically glycan-conjugated using the clinically validated SYNtecanE® platform. IBI3001 has multiple anti-tumor mechanisms of action: (1) enhanced EGFR signaling blockade; (2) EGFR- and B7-H3-aided payload internalization and cytotoxicity; and (3) potent bystander killing effects of ADC. The optimized B7-H3 arm not only enhances the EGFR signaling blockade but also reduces EGFR on-target toxicities. IBI3001 showed strong anti-tumor efficacy in vitro and in vivo across multiple solid tumors and is well tolerated with the therapeutic index at 40. Topic: IBI334, a novel ADCC-enhanced B7-H3/EGFR bispecific antibody, demonstrated potent pre-clinical efficacy in solid tumors Abstract Number: LB056 Presentation Form: Poster Presentation Time : Sunday Apr 7, 2024 1:30 PM - 5:00 PM Location: Poster Section 53 Presenting Author: Dr. Kaijie He IBI334 is an afucosylated bispecific antibody against B7-H3 and EGFR that is constructed using Innovent's proprietary Innobody platform. With the aid of B7-H3, IBI334 showed better tumor growth inhibition in vitro and in vivo than EGFR monoclonal antibody and c-met/EGFR bispecific antibody benchmarks. IBI334 has a favorable safety profile with the highest non-severely toxic dose (HNSTD) in cynomolgus monkeys at 120 mg/kg and a large therapeutic window of > 200 folds. As a promising bispecific antibody against multiple solid tumors, IBI334 is currently under clinical evaluation. Topic: Discovery and preclinical characterization of IBI343, a site-specific glycan-conjugated anti-Claudin18.2 ADC for treating solid tumors Abstract Number: LB057 Presentation Form: Poster Presentation Time : Sunday Apr 7, 2024 1:30 PM - 5:00 PM Location: Poster Section 53 Presenting Author: Dr. Kaijie He IBI343 is a potentially first-in-class anti-Claudin 18.2 ADC that is site-specifically glycan-conjugated to cytotoxin exatecan via Synaffix's GlycoConnect® technology. It demonstrated Claudin 18.2-specific in vitro cytotoxicity on a series of cancer cell lines at varying levels of target expression, and potent in vivo efficacy in multiple xenograft models. The glycan-based conjugation technology leads to enhanced stability of the ADC molecule. IBI343 displayed good safety profile in GLP toxicology study in rhesus monkey and was well tolerated up to 30 mg/kg. IBI343 has favorable pre-clinical efficacy and safety, and it is currently in preparation for Phase 3 clinical trial for Claudin-18.2-positive HER2-negative gastric cancer. Dr. Kaijie He, Vice President of Innovent, stated: "We are pleased that the pre-clinical studies of our novel anti-cancer drugs are accepted for Late-Breaking Research poster presentation at the 2024 AACR conference. This is the result of dedicated work from scientists at Innovent Academy with the aim to tackle cancers with innovative drugs that are more effective and safer. With careful design and optimization, our molecules can achieve favorable therapeutic windows of 40 to more than 200 times. We look forward to their performance in clinical settings and hope that these innovations can eventually benefit cancer patients." Poster Session: Immunology - Single Target and Bispecific Antibodies Topic: A novel TROP2-targeted immune stimulating antibody conjugate (ISAC) with potent anti-tumoral activity and acceptable safety Abstract Number: 2718 Presentation Form: Poster Presentation Time: Monday Apr 8, 2024 1:30 PM - 5:00 PM Location: Poster Section 6 Poster Board Number: 9 Presenting Author: Dr. Huizhong Xiong Immune stimulating antibody conjugates (ISACs) are a unique class of ADC in which antibodies recognizing tumor antigens are conjugated with immune agonists. ISACs target tumor tissue and specifically activate intra-tumoral myeloid cells, unleashing downstream immune response. Like the other immune agonists, balance between efficacy and safety remains a challenge for ISACs. Here we describe a potential first-in-class TROP2 ISAC with rationally selected antibody and TLR7/8 agonist linker-payload. The anti-TROP2 antibody elicited robust ADCP of TROP2+ tumor cells by macrophages. In-vitro, TROP2 ISAC mildly activated myeloid cells only in the presence of TROP2+ tumor cells. In-vivo, the molecule potently suppressed tumor growth in different TROP2+ xenograft tumors, and effectively enhanced killing of an ADC. In terms of safety, the ISAC was tolerated in both WT and hTROP2KI mice, and, importantly, in monkeys. Taken together, our data demonstrate a novel TROP2 ISAC with outstanding efficacy and manageable safety profile, which may benefit patients with TROP2+ tumors. Poster Session: Immunology - Immune Modulation Employing Agonist or Co-Stimulatory Approaches Topic: Tumor targeted-CD28 bispecific antibody with optimized potency, robust anti-tumoral activity and stringent CD3-dependence Abstract Number: 5295 Presentation Form: Poster Presentation Time: Tuesday Apr 9, 2024 1:30 PM - 5:00 PM Location: Poster Section 3 Poster Board Number: 4 Presenting Author: Dr. Huizhong Xiong We reported a rationally screened CD28 agonist antibody and its PSMAxCD28 bispecific format, IAR038. IAR038 has minimal activity in the absence of CD3, even under stringent conditions, different from benchmark antibody in clinical development. It demonstrated moderate activity in vitro in a CD3-dependent and PSMA-dependent manner. Notably, IAR038 elicited superior tumor killing in vivo and combined effectively with anti-PD1 antibody. In addition, it had an improved half-life compared with the Benchmark antibody. These features may translate to a wider therapeutic window and improved safety for CRPC patients. Dr. Huizhong Xiong, Senior Director of Immunology of Innovent, stated: "We keep pushing for deeper understanding and more rational design of agonistic and costimulatory molecules. Our work on tumor targeted TLR7/8 agonist and tumor targeted CD28 antibody demonstrates the capability of our biology-driven drug development to achieve better balance between efficacy and safety, made possible by our advanced technology platforms." About Innovent Innovent is a leading biopharmaceutical company founded in 2011 with the mission to provide high-quality biologics that are affordable to all. The company discovers, develops, manufactures and commercializes innovative medicines that treat some of the most intractable diseases. Its pioneering therapies treat cancer, cardiovascular and metabolic, autoimmune and eye diseases. Innovent has 10 products in the market, 3 new drug applications under the NMPA review, 5 assets in Phase III or pivotal clinical trials and 18 more molecules in early clinical stage. Innovent partners with over 30 global healthcare leaders, including Eli Lilly, Roche, Sanofi, Adimab, Incyte and MD Anderson Cancer Center. Guided by the motto, "Start with Integrity, Succeed through Action," Innovent maintains the highest standard of industry practices and works collaboratively to advance the biopharmaceutical industry so that first-rate pharmaceutical drugs can become widely accessible. For more information, visit , or follow Innovent on Facebook and LinkedIn. Statement: Innovent does not recommend the use of any unapproved drug (s)/indication (s). Forward-looking statement This news release may contain certain forward-looking statements that are, by their nature, subject to significant risks and uncertainties. The words "anticipate", "believe", "estimate", "expect", "intend" and similar expressions, as they relate to Innovent Biologics ("Innovent"), are intended to identify certain of such forward-looking statements. The Company does not intend to update these forward-looking statements regularly. These forward-looking statements are based on the existing beliefs, assumptions, expectations, estimates, projections and understandings of the management of the Company with respect to future events at the time these statements are made. These statements are not a guarantee of future developments and are subject to risks, uncertainties and other factors, some of which are beyond the Company's control and are difficult to predict. Consequently, actual results may differ materially from information contained in the forward-looking statements as a result of future changes or developments in our business, the Company's competitive environment and political, economic, legal and social conditions. The Company, the Directors and the employees of the Company assume (a) no obligation to correct or update the forward-looking statements contained in this site; and (b) no liability in the event that any of the forward-looking statements does not materialise or turn out to be incorrect. SOURCE Innovent Biologics

Regulatory applications for linvoseltamab currently under review by the U.S. Food and Drug Administration (FDA) and European Medicines Agency (EMA)TARRYTOWN, N.Y., April 07, 2024 (GLOBE NEWSWIRE) -- Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) today announced the oral plenary session presentation of positive pivotal data from the Phase 1/2 LINKER-MM1 trial of linvoseltamab in patients with relapsed/refractory (R/R) multiple myeloma (MM) at the American Association for Cancer Research (AACR) Annual Meeting 2024 in San Diego. Linvoseltamab is an investigational bispecific antibody designed to bridge B-cell maturation antigen (BCMA) on multiple myeloma cells with CD3-expressing T cells to facilitate T-cell activation and cancer-cell killing. “The presentation of these pivotal results in an oral plenary session at AACR recognizes the exciting potential of linvoseltamab to advance the treatment of multiple myeloma,” said Sundar Jagannath, M.D., Director of the Multiple Myeloma Center of Excellence at Tisch Cancer Center at Mount Sinai in New York City and a trial investigator. “In clinical trials, linvoseltamab treatment led to responses that occurred early, were durable and deepened over time – all critical efficacy measures for this heavily pre-treated patient population. Further, among patients who had at least 24 weeks of treatment, the majority achieved a very good partial response, enabling them to transition from every two-week to every four-week dosing. This is an important accomplishment that I’ve seen firsthand in my trial patients, and I eagerly anticipate the FDA decision expected this August.” With an 11-month median duration of follow up, the linvoseltamab data among 117 patients presented at AACR reinforce the strength of previously shared findings and included a: 71% objective response rate (ORR), with 46% of patients achieving a complete response (CR) or better and 62% achieving a very good partial response (VGPR) or better, as determined by an independent review committee.1-month median time to response (range: <1-6 months). In responders, the median time to a VGPR or better was 3 months (range: <1-13 months) and to a CR or better was 8 months (range: 2-14 months).Median duration of response (DoR), median progression-free survival (PFS) and median overall survival (OS) were not reached. At 12 months, the estimated probability of maintaining a response was 78%, being progression free was 69% and survival was 75%.Among patients who had a CR or better and were minimum residual disease (MRD) evaluable, 93% (25 of 27 patients) were MRD negative at 10-5. The trial included a response-adapted regimen that enabled linvoseltamab patients to shift to every four-week dosing if they achieved a VGPR or better and completed at least 24 weeks of therapy. In the dose expansion portion of the trial (n=105), of the patients who had at least 24 weeks of therapy at data cutoff, 90% (56 of 62) achieved a VGPR or better and were able to transition to every four-week dosing. Of the 29 patients who transitioned to the extended dosing regimen prior to achieving a CR, 48% (14 of 29) subsequently experienced a deepening of response to CR or better. In addition, high ORRs were observed across prespecified subgroups – including high-risk and high-disease burden populations – as follows: 85% among Black or African American patients (17 of 20 patients)71% among those aged 75 years or older (22 of 31 patients)67% among those with high cytogenetic risk (31 of 46 patients)62% among those with International Staging System stage III disease (13 of 21 patients)53% among those with extramedullary plasmacytomas (10 of 19 patients) Cytokine release syndrome (CRS) was the most commonly occurring treatment-emergent adverse event (TEAE) and was observed in 46% of patients; 35% were Grade 1, 10% were Grade 2 and one case (1%) was Grade 3. Adjudicated immune effector cell-associated neurotoxicity syndrome (ICANS) events of any grade occurred in 8% of patients, including three cases that were Grade 3 and no cases that were ≥Grade 4. Infections occurred in 73% of patients, with their frequency and severity decreasing after 6 months; 34% were Grade 3 or 4. The most common Grade 3 or 4 TEAEs (≥20%) were neutropenia (40%) and anemia (31%). Six deaths occurred on treatment or within 30 days of the last treatment dose due to TEAEs; five were due to infection, and one was due to renal failure. Linvoseltamab has been granted Fast Track Designation and was accepted for Priority Review for the treatment of R/R MM by the FDA, with a target action date of August 22, 2024. In addition, linvoseltamab is being reviewed by the EMA. Linvoseltamab is currently under clinical development, and its safety and efficacy have not been fully evaluated by any regulatory authority. The Phase 3 confirmatory trial for linvoseltamab in patients with R/R MM (LINKER-MM3) is underway. About Multiple MyelomaAs the second most common blood cancer, there are over 176,000 new cases of MM diagnosed globally, and 35,000 cases are diagnosed in the U.S. every year. In the U.S., there are approximately 8,000 people who have MM that has progressed after three lines of therapy, and 4,000 whose disease has progressed after four or more therapies. The disease is characterized by the proliferation of cancerous plasma cells (MM cells) that crowd out healthy blood cells in the bone marrow, infiltrate other tissues and cause potentially life-threatening organ injury. Despite treatment advances, MM is not curable and while current treatments are able to slow progression of the cancer, most patients will ultimately experience cancer progression and require additional therapies.About the Linvoseltamab Phase 1/2 Trial and Clinical Development ProgramThe ongoing, open-label, multicenter Phase 1/2 dose-escalation and dose-expansion LINKER-MM1 trial is investigating linvoseltamab in 282 enrolled patients with relapsed/refractory MM. The Phase 1 dose-escalation portion of the trial – which is now complete – primarily assessed safety, tolerability and dose-limiting toxicities across nine dose levels of linvoseltamab and explored different administration regimens. The ongoing Phase 2 dose expansion portion is assessing the safety and anti-tumor activity of linvoseltamab, with the primary endpoint of ORR. Key secondary endpoints include DoR, PFS, rate of MRD negative status and OS. Eligibility in the Phase 2 portion requires patients to have received at least three prior lines of therapy or have triple-class refractory MM. Linvoseltamab is administered with an initial step-up dosing regimen followed by the full 200 mg dose administered weekly. At week 16, all patients transition to every two-week dosing. A response-adapted regimen further enables patients to shift to every four-week dosing if they achieve a VGPR or better and have completed at least 24 weeks of therapy. The regimen requires a total of two 24-hour hospitalizations for safety monitoring. The broader linvoseltamab clinical development program includes additional trials in earlier lines of therapy and stages of disease that are planned or underway. They include a Phase 1/2 trial in first-line MM, a Phase 2 trial in high-risk smoldering MM, and a Phase 2 trial in monoclonal gammopathy of undetermined significance. A Phase 1 trial of linvoseltamab in combination with a Regeneron CD38xCD28 costimulatory bispecific in MM is also planned. For more information, visit the Regeneron clinical trials website, or contact via clinicaltrials@regeneron.com or 844-734-6643. About Regeneron in HematologyAt Regeneron, we’re applying more than three decades of biology expertise with our proprietary VelociSuite® technologies to develop medicines for patients with diverse blood cancers and rare blood disorders. Our blood cancer research is focused on bispecific antibodies that are being investigated both as monotherapies and in various combinations and emerging therapeutic modalities. Together, they provide us with unique combinatorial flexibility to develop customized and potentially synergistic cancer treatments. Our research and collaborations to develop potential treatments for rare blood disorders include explorations in antibody medicine, gene editing and gene-knockout technologies, and investigational RNA-approaches focused on depleting abnormal proteins or blocking disease-causing cellular signaling. About RegeneronRegeneron is a leading biotechnology company that invents, develops and commercializes life-transforming medicines for people with serious diseases. Founded and led for over 35 years by physician-scientists, our unique ability to repeatedly and consistently translate science into medicine has led to numerous FDA-approved treatments and product candidates in development, almost all of which were homegrown in our laboratories. Our medicines and pipeline are designed to help patients with eye diseases, allergic and inflammatory diseases, cancer, cardiovascular and metabolic diseases, hematologic conditions, infectious diseases and rare diseases. Regeneron is accelerating and improving the traditional drug development process through our proprietary VelociSuite technologies, such as VelocImmune®, which uses unique genetically humanized mice to produce optimized fully human antibodies and bispecific antibodies, and through ambitious research initiatives such as the Regeneron Genetics Center®, which is conducting one of the largest genetics sequencing efforts in the world. For more information about Regeneron, please visit www.Regeneron.com or follow Regeneron on LinkedIn. Forward-Looking Statements and Use of Digital MediaThis press release includes forward-looking statements that involve risks and uncertainties relating to future events and the future performance of Regeneron Pharmaceuticals, Inc. (“Regeneron” or the “Company”), and actual events or results may differ materially from these forward-looking statements. Words such as “anticipate,” “expect,” “intend,” “plan,” “believe,” “seek,” “estimate,” variations of such words, and similar expressions are intended to identify such forward-looking statements, although not all forward-looking statements contain these identifying words. These statements concern, and these risks and uncertainties include, among others, the nature, timing, and possible success and therapeutic applications of products marketed or otherwise commercialized by Regeneron and/or its collaborators or licensees (collectively, “Regeneron’s Products”) and product candidates being developed by Regeneron and/or its collaborators or licensees (collectively, “Regeneron’s Product Candidates”) and research and clinical programs now underway or planned, including without limitation linvoseltamab; the likelihood, timing, and scope of possible regulatory approval and commercial launch of Regeneron’s Product Candidates and new indications for Regeneron’s Products, such as any potential regulatory approval of linvoseltamab for the treatment of relapsed/refractory multiple myeloma (“R/R MM”) by the U.S. Food and Drug Administration (the “FDA”) (including the timing of enrollment of patients in the Phase 3 confirmatory trial for linvoseltamab in patients with R/R MM referenced in this press release (the “R/R MM Confirmatory Trial”), whether any beneficial regulatory designations previously granted by the FDA and referenced in this press release will positively impact the timing for potential FDA approval, and whether any such approval will be obtained by the FDA’s target action date referenced in this press release) or the European Medicines Agency; uncertainty of the utilization, market acceptance, and commercial success of Regeneron’s Products and Regeneron’s Product Candidates and the impact of studies (whether conducted by Regeneron or others and whether mandated or voluntary), including the studies discussed or referenced in this press release (such as the R/R MM Confirmatory Trial), on any of the foregoing or any potential regulatory approval of Regeneron's Products and Regeneron's Product Candidates (such as linvoseltamab); the ability of Regeneron’s collaborators, licensees, suppliers, or other third parties (as applicable) to perform manufacturing, filling, finishing, packaging, labeling, distribution, and other steps related to Regeneron’s Products and Regeneron’s Product Candidates; the ability of Regeneron to manage supply chains for multiple products and product candidates; safety issues resulting from the administration of Regeneron’s Products and Regeneron’s Product Candidates in patients, including serious complications or side effects in connection with the use of Regeneron’s Products and Regeneron’s Product Candidates in clinical trials; determinations by regulatory and administrative governmental authorities which may delay or restrict Regeneron’s ability to continue to develop or commercialize Regeneron’s Products and Regeneron’s Product Candidates; ongoing regulatory obligations and oversight impacting Regeneron’s Products, research and clinical programs, and business, including those relating to patient privacy; the availability and extent of reimbursement of Regeneron’s Products from third-party payers, including private payer healthcare and insurance programs, health maintenance organizations, pharmacy benefit management companies, and government programs such as Medicare and Medicaid; coverage and reimbursement determinations by such payers and new policies and procedures adopted by such payers; competing drugs and product candidates that may be superior to, or more cost effective than, Regeneron’s Products and Regeneron’s Product Candidates; the extent to which the results from the research and development programs conducted by Regeneron and/or its collaborators or licensees may be replicated in other studies and/or lead to advancement of product candidates to clinical trials, therapeutic applications, or regulatory approval; unanticipated expenses; the costs of developing, producing, and selling products; the ability of Regeneron to meet any of its financial projections or guidance and changes to the assumptions underlying those projections or guidance; the potential for any license, collaboration, or supply agreement, including Regeneron’s agreements with Sanofi and Bayer (or their respective affiliated companies, as applicable) to be cancelled or terminated; the impact of public health outbreaks, epidemics, or pandemics (such as the COVID-19 pandemic) on Regeneron's business; and risks associated with intellectual property of other parties and pending or future litigation relating thereto (including without limitation the patent litigation and other related proceedings relating to EYLEA® (aflibercept) Injection), other litigation and other proceedings and government investigations relating to the Company and/or its operations, the ultimate outcome of any such proceedings and investigations, and the impact any of the foregoing may have on Regeneron’s business, prospects, operating results, and financial condition. A more complete description of these and other material risks can be found in Regeneron’s filings with the U.S. Securities and Exchange Commission, including its Form 10-K for the year ended December 31, 2023. Any forward-looking statements are made based on management’s current beliefs and judgment, and the reader is cautioned not to rely on any forward-looking statements made by Regeneron. Regeneron does not undertake any obligation to update (publicly or otherwise) any forward-looking statement, including without limitation any financial projection or guidance, whether as a result of new information, future events, or otherwise. Regeneron uses its media and investor relations website and social media outlets to publish important information about the Company, including information that may be deemed material to investors. Financial and other information about Regeneron is routinely posted and is accessible on Regeneron's media and investor relations website (https://investor.regeneron.com) and its LinkedIn page (https://www.linkedin.com/company/regeneron-pharmaceuticals). Contacts:Media Relations Tammy Allen Tel: +1 914-306-2698tammy.allen@regeneron.comInvestor RelationsVesna TosicTel: +1 914-847-5443vesna.tosic@regeneron.com

Regeneron was keen to stress in the release that the FDA “did not identify any approvability issues” with odronextamab’s clinical efficacy, safety, trial design, labeling or manufacturing. Regeneron may have gotten ahead of itself with the early filing of bispecific antibody odronextamab to regulators. In a move that might not surprise keen FDA watchers, the agency has issued two complete response letters over the timelines of ongoing phase 3 confirmatory trials for the drug. Regeneron submitted an approval application in September 2023 for odronextamab to treat patients with relapsed/refractory (R/R) follicular lymphoma (FL) or R/R diffuse large B-cell lymphoma (DLBCL), who have progressed after at least two prior systemic therapies. The application was supported by data from the phase 1 ELM-1 study and the phase 2 ELM-2 study. While the application was assessed by the FDA for an anticipated accelerated approval decision on March 31, Regeneron’s plan was to continue to enroll patients in various confirmatory phase 3 lymphoma trials that formed part of the wide-ranging Olympia program. Enrollment in the dose-finding portion of these trials has already began, but the FDA decided that “the confirmatory portions of these trials should be underway and that the timelines to completion be agreed prior to resubmission” of the applications, according to Regeneron. A critical facet of the accelerated approval process is confirmatory trials that are meant to ultimately prove that the surrogate endpoint will translate to genuine clinical benefit. FDA Commissioner Robert Califf, M.D., has successfully advocated to have those trials underway before companies get accelerated approval, with the FDA's Center for Biologics Evaluation and Research Director Peter Marks, M.D., Ph.D., telling Fierce Biotech last year that this policy was a "work in progress." A meeting of the agency's oncologic drugs advisory committee in November 2023 also served as a reminder to cancer drug developers that the FDA is keeping a close eye on accelerated approvals. For now, Regeneron only said that updates on the enrollment and regulatory timelines will be shared “later this year.” Still, it could have been worse. Regeneron was keen to stress in the release that the FDA “did not identify any approvability issues” with odronextamab’s clinical efficacy, safety, trial design, labeling or manufacturing. This is not the first regulatory setback for odronextamab, which was hit with a partial clinical hold back in 2020 over safety concerns. But since the hold was lifted in May 2021, the drug’s prospects had looked good, with the latest readout from ELM-2 in December 2023 showing objective and complete response rates of 52% and 31%, respectively. The CD20xCD3 bispecific antibody is designed to bridge CD20 on cancer cells with CD3-expressing T cells to facilitate local T-cell activation and cancer-cell killing.