Immune Complex Diseases

-- Achieved 61% year-over-year growth with $149.4 million in AYVAKIT net product revenues in the first quarter 2025 -- -- Raising AYVAKIT net product revenue guidance to $700 - $720 million for 2025 -- -- Initiated BLU-808 proof of concept studies in allergic rhinoconjunctivitis and chronic urticaria – CAMBRIDGE, Mass. , May 1, 2025 /PRNewswire/ -- Blueprint Medicines Corporation (Nasdaq: BPMC) today reported financial results, provided a business update for the first quarter ended March 31, 2025 , and provided corporate updates. " Blueprint Medicines strives to be a top-tier standout in biotech, with a core focus on innovation, commercial excellence, and a disciplined approach to global investment across our portfolio. Following strong performance in 2024, we have continued our executional momentum in 2025," said Kate Haviland , Chief Executive Officer of Blueprint Medicines . "AYVAKIT is well on its way to meeting our goal of $2 billion in revenue by 2030, as we continue to capture the substantial and growing multi-billion-dollar systemic mastocytosis opportunity that we anticipate will drive topline revenue growth into the next decade. We also advanced our prioritized pipeline programs, achieving significant portfolio milestones, including the initiation of two proof-of-concept studies for wild-type KIT inhibitor BLU-808 and advancing the HARBOR study of elenestinib in indolent systemic mastocytosis. The combination of our durable and growing commercial revenue, our strong cash position, and our disciplined capital allocation strategy enables us to focus on executing our business to plan and insulates us from broader market volatility." First Quarter 2025 Highlights and Recent Progress Achieved AYVAKIT net product revenues of $149.4 million for the first quarter of 2025, including $129.4 million in the US and $20 million ex-US, representing 61% percent growth year-over-year. Initiated two clinical proof-of-concept studies of BLU-808, a highly selective and potent investigational oral wild-type KIT inhibitor for the treatment of mast cell disorders, including: A randomized, double-blind, placebo-controlled Phase 2a challenge study of BLU-808 in patients with allergic rhinoconjunctivitis; and A Phase 2a proof-of-concept study in chronic urticaria. This study comprises an open-label portion in chronic inducible urticaria and a randomized, double-blind, placebo-controlled portion in chronic spontaneous urticaria. Presented 12 poster and two oral data presentations at the American Academy of Allergy , Asthma & Immunology (AAAAI)/ World Allergy Organization (WAO) conference. The breadth of data included three-year long-term follow-up data from the PIONEER study of AYVAKIT in patients with indolent systemic mastocytosis (ISM), data showing AYVAKIT-treated patients with ISM achieved improvements in bone health, and data from the healthy volunteer study of BLU-808. Read the presentations here. Strengthened cash balance with $78.7 million in connection with the sale of the company's equity investment in IDRx, Inc. following its acquisition by GSK plc. Hosting scientific seminar on mast cell activation syndrome (MCAS) with expert physician Dr. Matt Giannetti on Wednesday, June 4, 2025 at 1:00 p.m. A randomized, double-blind, placebo-controlled Phase 2a challenge study of BLU-808 in patients with allergic rhinoconjunctivitis; and A Phase 2a proof-of-concept study in chronic urticaria. This study comprises an open-label portion in chronic inducible urticaria and a randomized, double-blind, placebo-controlled portion in chronic spontaneous urticaria. 2025 Financial Guidance Blueprint Medicines is raising guidance and now anticipates approximately $700 million to $720 million in global AYVAKIT net product revenues in 2025, on the path to achieving $2 billion in global AYVAKIT net product revenues by 2030. This guidance increase reflects favorability observed in the free versus commercial mix of AYVAKIT sales in the first quarter and continued strength in underlying fundamentals of growth. Blueprint continues to expect a year-over-year reduction in cash burn in 2025, as it continues to invest in advancing its prioritized programs, balancing investments in innovation with financial discipline. Blueprint continues to anticipate that its existing cash, cash equivalents and investments, together with anticipated product revenues, will provide sufficient capital to enable the company to achieve a self-sustainable financial profile. Key Upcoming Milestones The company plans to achieve the following remaining milestones in 2025: Mast cell disorders Deliver continued strong and steady AYVAKIT revenue growth. Achieve reimbursement of AYVAKYT in ≥ 20 countries overall. Activate sites and drive enrollment in HARBOR trial of elenestinib. Initiate proof of concept studies of BLU-808 in allergic asthma and MCAS. Discovery Nominate two development candidates, including the company's first protein degrader. First Quarter 2025 Results Revenues: Revenues were $149.4 million for the first quarter of 2025, generated by net product sales of AYVAKIT/AYVAKYT. Revenues were $96.1 million in the first quarter of 2024, including $92.5 million of net product revenues from sales of AYVAKIT/AYVAKYT and $3.6 million in collaboration revenues. Cost of Sales: Cost of sales was $2.8 million for the first quarter of 2025, as compared to $3.2 million for the first quarter of 2024. The decrease was primarily due to lower sales to our collaboration partner offset by an increase in product sales volume. R&D Expenses: Research and development expenses were $91.9 million for the first quarter of 2025, as compared to $88.2 million for the first quarter of 2024. This increase was primarily due to the increased investment in our priority programs to advance the associated clinical trials. Research and development expenses included $12.1 million in stock-based compensation expenses for the first quarter of 2025. SG&A Expenses: Selling, general and administrative expenses were $95.8 million for the first quarter of 2025, as compared to $83.6 million for the first quarter of 2024. This increase was primarily due to an increase in activities supporting the commercialization of AYVAKIT/AYVAKYT. Selling, general, and administrative expenses included $16.9 million in stock-based compensation expenses for the first quarter of 2025. Net Income: Net income was $0.5 million for the first quarter of 2025, as compared to a net income of $89.1 million for the first quarter of 2024. The net income for the first quarter of 2025 was primarily driven by a one-time net gain of $50.0 million recorded in connection with the sale of the company's equity investment in IDRx, Inc. following its acquisition by GSK plc. The net income for the first quarter of 2024 was primarily driven by a one-time non-cash debt extinguishment gain of $173.7 million recorded in connection with the Royalty Pharma termination agreement. Cash Position: As of March 31, 2025 , cash, cash equivalents and investments were $899.8 million , as compared to $863.9 million as of December 31, 2024 . Conference Call Information Blueprint Medicines will host a live conference call and webcast at 8:00 a.m. ET today to discuss first quarter 2025 financial results and recent business activities. The conference call may be accessed by dialing 833-470-1428 (domestic) or 404-975-4839 (international) and referring conference ID 082088. A webcast of the call will also be available under "Events and Presentations" in the Investors & Media section of the Blueprint Medicines website at http://ir.blueprintmedicines.com/. The archived webcast will be available on Blueprint Medicines' website approximately two hours after the conference call and will be available for 30 days following the call. Upcoming Investor Conferences Blueprint Medicines will participate in two upcoming investor conferences: Citizens JMP Life Science Conference on Wednesday, May 7, 2025 at 12:00 p.m. ET . Goldman Sachs 46th Annual Global Healthcare Conference on Wednesday, June 11, 2025 at 10:40 a.m. ET . Scientific Webinar Series Blueprint Medicines will host the third event in its scientific seminar series, focused on mast cell activation syndrome (MCAS), on Wednesday, June 4, 2025 at 1:00 p.m. ET . A live webcast of the above presentations and any related slides will be available under "Events and Presentations" in the Investors & Media section of the Blueprint Medicines website at http://ir.blueprintmedicines.com. A replay of the webcasts will be archived on the Blueprint Medicines website following the events. About Blueprint Medicines Blueprint Medicines is a global, fully integrated biopharmaceutical company that invents life-changing medicines. We seek to alleviate human suffering by solving important medical problems in two core focus areas: allergy/inflammation and oncology/hematology. Our approach begins by targeting the root causes of disease, using deep scientific knowledge in our core focus areas and drug discovery expertise across multiple therapeutic modalities. We have a track record of success with two approved medicines, including AYVAKIT®/AYVAKYT® (avapritinib) which we are bringing to patients with systemic mastocytosis (SM) in the U.S. and Europe . Leveraging our established research, development, and commercial capability and infrastructure, we now aim to significantly scale our impact by advancing a broad pipeline of programs ranging from early science to advanced clinical trials in mast cell diseases including SM and chronic urticaria, breast cancer and other solid tumors. For more information, visit www.BlueprintMedicines.com and follow us on X (formerly Twitter; @BlueprintMeds) and LinkedIn. Cautionary Note Regarding Forward-Looking Statements This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including, without limitation, statements regarding plans, strategies, timelines and expectations for Blueprint Medicines' operations, including its expectations regarding growth and net product revenue in 2025 and its 2030 net product revenue goal; its goals related to global reimbursement of AYVAKIT/ AYVAKYT; statements regarding its current or future approved drugs and drug candidates and operations, including plans to drive enrollment of HARBOR trial of elenestinib and initiate proof of concept studies of BLU-808 in allergic asthma and MCAS; expectations related to the markets for current or future approved drugs and drug candidates; its planned milestones for 2025; the potential benefits of any of its current or future approved drugs or drug candidates in treating patients; statements related to liquidity and capital position, including expectations that its cash, cash equivalents and investments together with anticipated product revenues, will provide sufficient capital to enable it to reach a self-sustainable financial profile; its statements regarding broader market volatility; and its financial performance, strategy, goals and anticipated milestones, business plans and focus, including expectations regarding its reduction in cash burn. The words "aim," "may," "will," "could," "would," "should," "expect," "plan," "anticipate," "intend," "believe," "estimate," "predict," "project," "opportunity," "potential," "continue," "target" and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Any forward-looking statements in this press release are based on management's current expectations and beliefs and are subject to a number of risks, uncertainties and important factors that may cause actual events or results to differ materially from those expressed or implied by any forward-looking statements contained in this press release, including, without limitation: the risk that the marketing and sale of AYVAKIT/ AYVAKYT or any future approved drugs may be unsuccessful or less successful than anticipated, or that AYVAKIT/ AYVAKYT may not gain market acceptance by physicians, patients, third-party payors and others in the medical community; the risk that the market opportunities for AYVAKIT/ AYVAKYT or Blueprint Medicines' drug candidates are smaller than we estimate or that any approval we obtain may be based on a narrower definition of the patient population that we anticipate; the risk of delay of any current or planned clinical trials or the development of Blueprint Medicines' current or future drug candidates; risks related to Blueprint Medicines' ability to successfully demonstrate the safety and efficacy of its drug candidates and gain approval of its drug candidates on a timely basis, if at all; preclinical and clinical results for Blueprint Medicines' drug candidates may not support further development of such drug candidates either as monotherapies or in combination with other agents or may impact the anticipated timing of data or regulatory submissions; the timing of the initiation of clinical trials and trial cohorts at clinical trial sites and patient enrollment rates may be delayed or slower than anticipated; actions of regulatory agencies may affect its approved drugs or its current or future drug candidates, including affecting the initiation, timing and progress of clinical trials, as well as the pricing of its drug candidates; risks related to Blueprint Medicines' ability to obtain, maintain and enforce patent and other intellectual property protection for its products and current or future drug candidates it is developing; the success of Blueprint Medicines' current and future collaborations, financing arrangements, partnerships or licensing and other arrangements; risks related to its liquidity and financial position, including the risk that Blueprint Medicines may be unable to generate sufficient future product revenues to achieve and maintain a self-sustainable financial profile; and the accuracy of its estimates of revenues, expenses and capital requirements. These and other risks and uncertainties are described in greater detail in the section entitled "Risk Factors" in Blueprint Medicines' filings with the Securities and Exchange Commission (SEC), including Blueprint Medicines' most recent Annual Report on Form 10-K, as supplemented by its most recent Quarterly Report on Form 10-Q and any other filings that Blueprint Medicines has made or may make with the SEC in the future. Any forward-looking statements contained in this press release represent Blueprint Medicines' views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. Except as required by law, Blueprint Medicines explicitly disclaims any obligation to update any forward-looking statements. Trademarks Blueprint Medicines , AYVAKIT, AYVAKYT and associated logos are trademarks of Blueprint Medicines Corporation. Blueprint Medicines Corporation Selected Condensed Consolidated Balance Sheet Data (in thousands) (unaudited) March 31 , December 31 , 2025 2024 Cash, cash equivalents and investments $ 899,784 863,937 Working capital (1) 451,485 481,882 Total assets 1,195,604 1,179,813 Deferred revenue (2) 10,316 10,198 Liability related to the sale of future royalties and revenues (2) 246,632 255,174 Term loan (2) 387,746 386,970 Total liabilities 853,473 881,148 Total stockholders' equity 342,131 298,665 (1) Blueprint Medicines defines working capital as current assets less current liabilities. (2) Includes both current and long-term portions of the balance. Blueprint Medicines Corporation Condensed Consolidated Statements of Operations Data (in thousands, except per share data) (unaudited) Three Months Ended March 31 , 2025 2024 Revenues: Product revenue, net $ 149,413 $ 92,525 Collaboration, license, and other revenue - 3,591 Total revenues 149,413 96,116 Cost and operating expenses: Cost of sales 2,802 3,191 Research and development 91,890 88,191 Selling, general and administrative 95,807 83,557 Total cost and operating expenses 190,499 174,939 Other income (expense): Interest expense, net (8,129) (5,895) Other income, net 461 376 Equity investment gain 50,039 - Debt extinguishment gain - 173,658 Total other income, net 42,371 168,139 Income before income taxes 1,285 89,316 Income tax expense 789 180 Net income $ 496 $ 89,136 Net income per share — basic $ 0.01 $ 1.45 Net income per share — diluted $ 0.01 $ 1.40 Weighted-average number of common shares used in net income per share — basic 64,096 61,580 Weighted-average number of common shares used in net income per share —diluted 66,526 63,802 View original content to download multimedia:https://www.prnewswire.com/news-releases/blueprint-medicines-reports-first-quarter-2025-results-and-raises-ayvakitayvakyt-avapritinib-full-year-revenue-guidance-302443541.html SOURCE Blueprint Medicines Corporation Media Contact: Andrew Law, 617-844-8205, media@blueprintmedicines.com, Investor Contact: Jenna Cohen, 857-209-3147, ir@blueprintmedicines.com

ATTR-CM is a fatal condition that leads to restrictive cardiomyopathy and heart failure. Credit: PanuShot/Shutterstock. The UK Medicines and Healthcare products Regulatory Agency (MHRA) has granted marketing authorisation for BridgeBio Pharma’s acoramidis under the name Beyonttra, for treating wild-type or variant transthyretin amyloidosis in adult patients with cardiomyopathy (ATTR-CM). Acoramidis is an orally administered selective small molecule that stabilises transthyretin (TTR) by more than 90%. This authorisation was supported by the outcomes from the pivotal ATTRibute-CM Phase III trial, which demonstrated cardiovascular benefits. In the trial, the therapy’s safety and efficacy were assessed in 632 symptomatic ATTR-CM subjects, and they were given either the therapy or a placebo for a 30-month period. The primary clinical endpoints were met at month 30, showing a decrease in cardiovascular-related hospitalisations, preservation of functional capacity, improved survival and quality of life for subjects. The therapy received the US Food and Drug Administration’s (FDA) approval under the name Attruby in November 2024, and as Beyonttra by the European Commission (EC) in February 2025. GlobalData Strategic Intelligence US Tariffs are shifting - will you react or anticipate? Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis. By GlobalData Learn more about Strategic Intelligence It was also approved in Japan by the Ministry of Health, Labour, and Welfare in March 2025. In the UK, Bayer will manage all commercial activities for the therapy. In March 2024, the company and Bayer entered a partnership granting the latter exclusive rights to commercialise the therapy in Europe. According to the licencing agreement, BridgeBio will obtain tiered royalties starting in the low-thirties percent on UK sales after commercialisation efforts commence. ATTR-CM is a fatal condition that causes heart failure due to restrictive cardiomyopathy. BridgeBio Cardiorenal chief medical officer and president Jonathan Fox stated: “We are proud to add another approval for acoramidis and thrilled that patients in the UK will now have access to Beyonttra since they are in great need of new disease-modifying treatments for their condition. “We look forward to extending our collaboration with our European partner, Bayer, to serve ATTR-CM patients across the UK and the rest of Europe, and will continue to work towards reaching patients in as many regions as possible around the world.”

Six abstracts accepted for presentation includes post hoc analyses and real-world evidence for ZYMFENTRA® (infliximab-dyyb) Findings reinforce clinical decision-making in long-term management of moderate-to-severe Crohn's disease and ulcerative colitis and underscore Celltrion's commitment to advancing scientific understanding in the field of IBD Findings reinforce clinical decision-making in long-term management of moderate-to-severe Crohn's disease and ulcerative colitis and underscore Celltrion's commitment to advancing scientific understanding in the field of IBD INCHEON, South Korea, April 28, 2025 -- Celltrion, Inc. today announced that six abstracts will be presented at the 2025 Digestive Disease Week® (DDW) Annual Meeting, taking place May 3-6 in San Diego, California. The oral and poster presentations will feature data including post hoc analyses of its pivotal LIBERTY studies (LIBERTY-CD and LIBERTY-UC) of ZYMFENTRA®, the first and only FDA-approved subcutaneous infliximab. "We are excited by the opportunity to present further analyses reinforcing ZYMFENTRA's clinical value for HCPs and patients," said Hetal Patel, PharmD MBA, Vice President of Medical Affairs at Celltrion USA. "With IBD management becoming increasingly individualized, we anticipate these analyses will help clarify how ZYMFENTRA performs across a wide range of patient types, from long-term drug persistence to recapture following dose escalation." The presentations reflect Celltrion's continued commitment to making comprehensive clinical and real-world evidence accessible to healthcare professionals in the U.S., supporting informed treatment decisions in a complex and evolving IBD landscape. The details of Celltrion's abstract presentations are as follows: Abstract Title Presentation Details All times PDT Endoscopic and histologic outcomes in patients with moderate-to-severe ulcerative colitis treated with subcutaneous infliximab: A post hoc analysis of the LIBERTY-UC study Poster Presentation #0035 IMIBD_POS: IBD: Controlled Clinical Trials in Humans Sunday May 4, 2025 / 12:30-13:30 Time to clinical recapture after dose escalation of subcutaneous infliximab following loss of response: A post hoc analysis of the 2-year Phase 3 LIBERTY-CD & LIBERTY-UC trials Poster Presentation #0016 IMIBD_POS: IBD: Controlled Clinical Trials in Humans Sunday May 4, 2025 / 12:30-13:30 Efficacy of subcutaneous infliximab maintenance therapy according to disease location in patients with moderate-to-severe Crohn's disease: A post hoc analysis of the Phase 3 LIBERTY-CD study Poster Presentation #0039 IMIBD_POS: IBD: Controlled Clinical Trials in Humans Sunday May 4, 2025 / 12:30-13:30 Impact of immunogenicity on 2-year clinical outcomes in patients with moderate-to-severe Crohn's disease treated with subcutaneous infliximab: A post hoc analysis of the Phase 3 LIBERTY-CD study Poster Presentation #0011 IMIBD_POS: IBD: Controlled Clinical Trials in Humans Sunday May 4, 2025 / 12:30-13:30 Characterization of patients who experience loss of response during maintenance treatment with subcutaneous infliximab: A post hoc analysis of the 2-year Phase 3 LIBERTY-CD & LIBERTY-UC trials Poster Presentation #0017 IMIBD_POS: IBD: Controlled Clinical Trials in Humans Sunday May 4, 2025 / 12:30-13:30 Nationwide population-based cohort study on the use and persistence of infliximab IV and SC in France: Riposte IBD study Poster Presentation #0014 IMIBD_POS: IBD: Comparative Effectiveness Studies Tuesday May 6, 2025 / 12:30-13:30 Notes to Editors: About ZYMFENTRA® (infliximab-dyyb) ZYMFENTRA® (infliximab-dyyb) is a prescription medicine used as an injection under the skin (subcutaneous injection) by adults for the maintenance treatment of moderately-to-severely active ulcerative colitis following treatment with an infliximab product given by intravenous infusion (IV), Moderately-to-severely active Crohn's disease following treatment with an infliximab product given by intravenous infusion (IV). ZYMFENTRA blocks the action of tumor necrosis factor-alpha (TNF-alpha), a protein that can be overproduced in response to certain diseases and cause the immune system to attack normal, healthy parts of the body. ZYMFENTRA was approved by the FDA through the Biologics License Application (BLA) under the 351 (a) pathway of the Public Health Service Act (a "stand-alone" BLA). ZYMFENTRA is considered a new biologic with a first-approved subcutaneous administration form and thus will be under patent protection for its dosage form by 2037 and for its route of administration by 2040. Indication and Important Safety Information ZYMFENTRA® is a prescription medicine indicated in adults for maintenance treatment of: Moderately-to-severely active Crohn's disease following treatment with an infliximab product administered intravenously. Moderately-to-severely active ulcerative colitis following treatment with an infliximab product administered intravenously. Moderately-to-severely active ulcerative colitis following treatment with an infliximab product administered intravenously. It is not known if ZYMFENTRA is safe and effective in children under 18 years of age. What is the most important information I should know about ZYMFENTRA? SERIOUS INFECTIONS Patients treated with ZYMFENTRA are at increased risk for developing serious infections involving various organ systems and sites that may lead to hospitalization or death. Discontinue ZYMFENTRA if a patient develops a serious infection or sepsis. Reported infections include: Active tuberculosis (TB), including reactivation of latent TB. Patients frequently presented with disseminated or extrapulmonary disease. Patients should be tested for latent TB before and during treatment with ZYMFENTRA. Treatment for latent infection should be initiated prior to treatment with ZYMFENTRA. Invasive fungal infections, including histoplasmosis, coccidioidomycosis, candidiasis, aspergillosis, blastomycosis, and pneumocystosis. Patients may present with disseminated, rather than localized, disease. Empiric anti-fungal therapy should be considered in patients at risk for invasive fungal infections who develop severe systemic illness. Bacterial, viral, and other infections due to opportunistic pathogens, including Legionella and Listeria. Bacterial, viral, and other infections due to opportunistic pathogens, including Legionella and Listeria. The risks and benefits of treatment with ZYMFENTRA should be carefully considered prior to initiating therapy in patients with chronic or recurrent infection. Closely monitor patients for the development of signs and symptoms of infection during and after treatment with ZYMFENTRA, including the possible development of TB in patients who tested negative for latent TB infection prior to initiating therapy. Risk of infection may be higher in patients greater than 65 years of age, patients with comorbid conditions and/or patients taking concomitant immunosuppressant therapy. In clinical trials, other serious infections observed in patients treated with infliximab included arthritis bacterial, pneumonia, and urinary tract infection. MALIGNANCIES Malignancies, some fatal, have been reported in children, adolescents, and young adults treated with TNF blockers, including infliximab products. Approximately half of these cases were lymphomas, including Hodgkin's and non-Hodgkin's lymphoma. The other cases represented a variety of malignancies, including rare malignancies that are usually associated with immunosuppression and malignancies that are not usually observed in children and adolescents. The malignancies occurred after a median of 30 months after the first dose of therapy. Most of the patients were receiving concomitant immunosuppressants. Post-marketing cases of hepatosplenic T-cell lymphoma, a rare type of T-cell lymphoma, have been reported in patients treated with TNF blockers, including infliximab products. These cases have had a very aggressive disease course and have been fatal. The majority of reported cases have occurred in patients with Crohn's disease or ulcerative colitis, and most were in adolescent and young adult males. Almost all of these patients had received treatment with azathioprine or 6-mercaptopurine concomitantly with a TNF blocker at or prior to diagnosis. Carefully assess the risks and benefits of treatment with ZYMFENTRA, especially in these patient types. In clinical trials of all TNF blockers, more cases of malignancies were observed compared with controls and the expected rate in the general population. In clinical trials of some TNF blockers, including infliximab products, more cases of other malignancies were observed compared with controls. As the potential role of TNF blocker therapy in the development of malignancies is not known, caution should be exercised when considering treatment of patients with a current or a past history of malignancy. Melanoma and Merkel cell carcinoma have been reported in patients treated with TNF blocker therapy, including infliximab products. Periodic skin examination is recommended for all patients, particularly those with risk factors for skin cancer. CONTRAINDICATIONS ZYMFENTRA is contraindicated in patients with a previous severe hypersensitivity reaction to infliximab-dyyb, other infliximab products, any of the inactive ingredients of ZYMFENTRA or any murine proteins (severe hypersensitivity reactions have included anaphylaxis, hypotension and serum sickness). HEPATITIS B VIRUS REACTIVATION TNF blockers, including infliximab products, have been associated with reactivation of hepatitis B virus (HBV) in patients who are chronic carriers. Some cases were fatal. Patients should be tested for HBV infection before initiating ZYMFENTRA. For patients who test positive, consult a physician with expertise in the treatment of hepatitis B. Exercise caution when prescribing ZYMFENTRA for patients identified as carriers of HBV and monitor closely for active HBV infection during and following termination of therapy with ZYMFENTRA. Discontinue ZYMFENTRA in patients who develop HBV reactivation and initiate antiviral therapy with appropriate supportive treatment. Exercise caution when considering resumption of ZYMFENTRA and monitor patients closely. HEPATOTOXICITY Hepatobiliary disorders, including acute liver failure, jaundice abnormal hepatic function, hepatic steatosis, hepatitis, hepatotoxicity, hyperbilirubinemia and non-alcoholic fatty liver, have been reported in patients receiving infliximab products post-marketing. Some cases were fatal or required liver transplant. Aminotransferase elevations were not noted prior to discovery of liver injury in many cases. Patients with symptoms or signs of liver dysfunction should be evaluated for evidence of liver injury. If jaundice and/or marked liver enzyme elevations (eg, ≥5 times the upper limit of normal) develop, ZYMFENTRA should be discontinued and a thorough investigation of the abnormality should be undertaken. CONGESTIVE HEART FAILURE Cases of worsening congestive heart failure (CHF) and new onset CHF have been reported with TNF blockers. Some cases had a fatal outcome. In several exploratory trials of other TNF blockers in the treatment of CHF, there were greater proportions of TNF-blocker-treated patients who had CHF exacerbations requiring hospitalization or increased mortality. ZYMFENTRA has not been studied in patients with a history of CHF and ZYMFENTRA should be used with caution in patients with CHF. HEMATOLOGIC REACTION Cases of leukopenia, neutropenia, thrombocytopenia and pancytopenia (some fatal) have been reported. The causal relationship to infliximab-product therapy remains unclear. Exercise caution in patients who have ongoing or a history of significant hematologic abnormalities. Advise patients to seek immediate medical attention if they develop signs and symptoms of blood dyscrasias or infection. Consider discontinuation of ZYMFENTRA in patients who develop significant hematologic abnormalities. HYPERSENSITIVITY AND OTHER ADMINISTRATION REACTIONS In post-marketing experience, serious systemic hypersensitivity reactions (including anaphylaxis, hypotension and serum sickness) have been reported following administration of infliximab products. If an anaphylactic or other clinically significant hypersensitivity reaction occurs, institute appropriate therapy and discontinue ZYMFENTRA. INJECTION SITE REACTIONS In clinical studies, localized injection-site reactions were reported following administration of ZYMFENTRA. If a clinically significant injection-site reaction occurs, institute appropriate therapy and discontinue ZYMFENTRA. NEUROLOGIC REACTIONS Agents that inhibit TNF have been associated with central nervous system (CNS) manifestation of systemic vasculitis, seizure and new onset or exacerbation of CNS demyelinating disorders, including multiple sclerosis and optic neuritis and peripheral demyelinating disorders, including Guillain-Barré syndrome. Exercise caution when considering ZYMFENTRA in patients with these disorders and consider discontinuation if these disorders develop. RISK OF INFECTION WITH CONCURRENT ADMINISTRATION OF OTHER BIOLOGICS PRODUCTS Serious infections and neutropenia have been reported with concurrent use of ZYMFENTRA with other immunosuppressive biological products. The concurrent use of ZYMFENTRA with other immunosuppressive biological products used to treat UC and CD may increase the risk of infection and is not recommended. RISK OF ADDITIVE IMMUNOSUPPRESSIVE EFFECTS FROM PRIOR BIOLOGICAL PRODUCTS Consider the half-life and mode of action of prior biological products to avoid unintended additive immunosuppressive effects when initiating ZYMFENTRA. AUTOIMMUNITY Treatment with TNF blockers may result in the formation of autoantibodies and in the development of a lupus-like syndrome. Discontinue ZYMFENTRA treatment if symptoms of a lupus-like syndrome develop. VACCINATIONS AND USE OF LIVE VACCINES/THERAPEUTIC INFECTIOUS AGENTS Prior to initiating ZYMFENTRA, update vaccinations in accordance with current vaccination guidelines. Live vaccines or therapeutic infectious agents should not be given with ZYMFENTRA due to the possibility of clinical infections, including disseminated infections. At least a 6-month waiting period following birth is recommended before the administration of any live vaccine to infants exposed in utero to ZYMFENTRA. ADVERSE REACTIONS In clinical trials with ZYMFENTRA, the most common adverse reactions occurring in ≥3% of ZYMFENTRA-treated patients included site reactions, COVID-19, anemia, arthralgia, infection site reaction, increased alanine aminotransferase and abdominal pain for UC, and COVID-19, headache, upper respiratory tract infection, injection site reaction, diarrhea, increased blood creatine phosphokinase, arthralgia, increased alanine aminotransferase, hypertension, urinary tract infection, neutropenia, dizziness and leukopenia for CD. Please click for Full U.S. Prescribing Information. Globally, prescribing information varies; refer to the individual country product label for complete information. About Digestive Disease Week® Digestive Disease Week® (DDW) is the largest international gathering of physicians, researchers and academics in the fields of gastroenterology, hepatology, endoscopy and gastrointestinal surgery. Jointly sponsored by the American Association for the Study of Liver Diseases (AASLD), the American Gastroenterological Association (AGA), the American Society for Gastrointestinal Endoscopy (ASGE) and the Society for Surgery of the Alimentary Tract (SSAT), DDW is an in-person and online meeting from May 3-6, 2025. The meeting showcases more than 5,600 abstracts and hundreds of lectures on the latest advances in GI research, medicine and technology. More information can be found at www.ddw.org About Celltrion, Inc. Celltrion is a leading biopharmaceutical company that specializes in researching, developing, manufacturing, marketing and sales of innovative therapeutics that improve people's lives worldwide. Celltrion is a pioneer in the biosimilar space, having launched the world's first monoclonal antibody biosimilar. Our global pharmaceutical portfolio addresses a range of therapeutic areas including immunology, oncology, hematology, ophthalmology and endocrinology. Beyond biosimilar products, we are committed to advancing our pipeline with novel drugs to push the boundaries of scientific innovation and deliver quality medicines. For more information, please visit our website www.celltrion.com/en-us. and stay updated with our latest news and events on our social media: LinkedIn, Instagram, X, and Facebook. About Celltrion USA Celltrion USA is Celltrion's U.S. subsidiary established in 2018. Headquartered in New Jersey, Celltrion USA is committed to expanding access to innovative biologics to improve care for U.S. patients. Celltrion's FDA-approved biosimilar products in immunology, oncology, hematology, and endocrinology include: INFLECTRA® (infliximab-dyyb), TRUXIMA® (rituximab-abbs), HERZUMA® (trastuzumab-pkrb), VEGZELMA® (bevacizumab-adcd), YUFLYMA®(adalimumab-aaty), AVTOZMA® (tocilizumab-anho), STEQEYMA® (ustekinumab-stba), STOBOCLO® (denosumab-bmwo), OSENVELT® (denosumab-bmwo) and OMLYCLO® (omalizumab-igec), as well as the novel biologic ZYMFENTRA® (infliximab-dyyb). Celltrion USA will continue to leverage Celltrion's unique heritage in biotechnology, supply chain excellence and best-in-class sales capabilities to improve access to high-quality biopharmaceuticals for U.S. patients. For more information, please visit www.celltrionusa.com and stay updated with our latest news and events on our social media: LinkedIn. FORWARD-LOOKING STATEMENT Certain information set forth in this press release contains statements related to our future business and financial performance and future events or developments involving Celltrion, Inc. and its subsidiaries that may constitute forward-looking statements under pertinent securities laws. This press release contains forward looking statements. These statements may be also identified by words such as "prepares", "hopes to", "upcoming", "plans to", "aims to", "to be launched", "is preparing", "once gained", "could", "with the aim of", "may", "once identified", "will", "working towards", "is due", "become available", "has potential to", "anticipate" the negative of these words or such other variations thereon or comparable terminology. In addition, our representatives may make oral forward-looking statements. 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