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SEATTLE--( BUSINESS WIRE )--Omeros Corporation (Nasdaq: OMER) today announced an update on its progress toward planned resubmission of its biologics license application (“BLA”) for narsoplimab, the company’s first-in-class antibody targeting MASP-2, the effector enzyme of the lectin pathway of complement, in hematopoietic stem cell transplant-associated thrombotic microangiopathy (“TA-TMA”). In last week’s quarterly earnings release and associated call, Omeros stated that it was awaiting feedback from the U.S. Food and Drug Administration (“FDA”) on the company’s revised statistical analysis plan (“SAP”) for the BLA. Omeros has now received FDA’s response on the revised SAP, has no other presubmission information requests pending and is not aware of any other impediment to resubmitting the narsoplimab BLA. Following data preparation, primary endpoint and other analyses will be conducted by an independent expert statistical group. If the analytical results support resubmission of the BLA, the company plans to finalize and resubmit the BLA as soon as possible. As previously disclosed, as part of a September 2024 meeting with the FDA regarding Omeros’ proposed BLA resubmission, FDA provided minor feedback on the proposed SAP for the primary efficacy endpoint. The feedback was limited to requesting a few additional sensitivity analyses. Omeros accordingly revised and resubmitted the SAP and FDA has now responded with additional recommendations on the SAP, which are acceptable to Omeros. The independent statistical group will incorporate FDA’s additional recommendations into the final SAP, implement and validate all required modifications to the related statistical programs, and then conduct the prespecified efficacy analyses. Following validation of results, Omeros will share publicly the outcome of the primary analysis and, as completed, additional analyses. About Omeros Corporation Omeros is an innovative biopharmaceutical company committed to discovering, developing and commercializing first-in-class small-molecule and protein therapeutics for large-market and orphan indications targeting immunologic disorders, including complement-mediated diseases and cancers, as well as addictive and compulsive disorders. Omeros’ lead MASP-2 inhibitor narsoplimab targets the lectin pathway of complement and is the subject of a biologics license application pending before FDA for the treatment of hematopoietic stem cell transplant-associated thrombotic microangiopathy. Omeros’ long-acting MASP-2 inhibitor OMS1029 has successfully completed Phase 1 single- and multiple-ascending dose clinical studies. OMS906, Omeros’ inhibitor of MASP-3, the key activator of the alternative pathway of complement, is advancing toward Phase 3 clinical trials for paroxysmal nocturnal hemoglobinuria and complement 3 glomerulopathy. Funded by the National Institute on Drug Abuse, Omeros’ lead phosphodiesterase 7 inhibitor OMS527 is in clinical development for the treatment of cocaine use disorder. Omeros also is advancing a broad portfolio of five novel cellular and molecular immuno-oncology programs. For more information about Omeros and its programs, visit www.omeros.com . Forward-Looking Statements This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, which are subject to the “safe harbor” created by those sections for such statements. All statements other than statements of historical fact are forward-looking statements, which are often indicated by terms such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “goal,” “intend,” “likely,” “look forward to,” “may,” “objective,” “plan,” “potential,” “predict,” “project,” “should,” “slate,” “target,” “will,” “would” and similar expressions and variations thereof. Forward-looking statements, including statements regarding the anticipated next steps in relation to the biologics license application for narsoplimab, the timing of regulatory events, the availability of clinical trial data and related analyses, the prospects for obtaining FDA approval of narsoplimab in any indication, expectations regarding the initiation or continuation of clinical trials evaluating Omeros’ drug candidates and the anticipated availability of data therefrom, expectations regarding future cash expenditures, and expectations regarding the sufficiency and availability of our capital resources to fund current and planned operations, are based on management’s beliefs and assumptions and on information available to management only as of the date of this press release. Omeros’ actual results could differ materially from those anticipated in these forward-looking statements for many reasons, including, without limitation, unfavorable, unexpected or inconclusive results of our statistical analyses relating to an external registry of TA-TMA patients, unanticipated or unexpected outcomes of regulatory processes in relevant jurisdictions, unproven preclinical and clinical development activities, our financial condition and results of operations, regulatory processes and oversight, challenges associated with manufacture or supply of our products to support clinical trials, regulatory process and/or commercial sale following any marketing approval, changes in reimbursement and payment policies by government and commercial payers or the application of such policies, failure by Congress to reauthorize the priority review voucher program or other legislative developments, intellectual property claims, competitive developments, litigation, and the risks, uncertainties and other factors described under the heading “Risk Factors” in our Annual Report on Form 10-K filed with the Securities and Exchange Commission on April 1, 2024, an in our subsequently filed quarterly reports on Form 10-Q. Given these risks, uncertainties and other factors, you should not place undue reliance on these forward-looking statements, and we assume no obligation to update these forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law.

Following achievements in Asia, Roche's PNH treatment drug PIASKY (crovalimab) received its first FDA approval. This approval has spiked the competition between Roche and current market leader AstraZeneca. Additionally, the other pharma companies also geared up to launch their respective lead assets. LAS VEGAS, Sept. 2, 2024 /PRNewswire/ -- Paroxysmal nocturnal hemoglobinuria (PNH), a rare disorder, shows a triad of features: intravascular hemolysis, thromboembolic events, and cytopenia. Manifestations vary among patients, making classification based on typical presentations challenging due to the disease's unpredictable nature. In 2023, the Paroxysmal Nocturnal Hemoglobinuria diagnosed prevalent cases were ~12,000 cases in the 7MM, which might reach ~13,000 cases by 2034. In the 7MM, the highest number of paroxysmal nocturnal hemoglobinuria diagnosed prevalent cases were observed in the US. Until 2007, PNH was a devastating disease without treatment for hemolysis and thrombosis, the leading cause of death in patients. However, the last decade saw a revolutionary shift with the advent of the anti-C5 agent eculizumab. It significantly reduced hemolysis, decreased transfusion dependency, and, crucially, lowered the thrombosis rate. The disease-modifying therapeutic strategy for paroxysmal nocturnal hemoglobinuria includes complement inhibition therapy, with drugs like SOLIRIS, ULTOMIRIS, and EMPAVELI approved by the FDA, and considered the gold standard. SOLIRIS, the pioneering therapy for PNH, was succeeded by ULTOMIRIS, both developed by Alexion Pharmaceuticals, offering C5 inhibitors as essential therapeutic options. Recent approvals of factor B and D inhibitors like FABHALTA (iptacopan) in the US and VOYDEYA (danicopan) in Japan aim to offer improved treatment with fewer side effects. Learn more about the FDA-approved paroxysmal nocturnal hemoglobinuria drugs @ Drugs for Paroxysmal Nocturnal Hemoglobinuria Treatment The European Medicines Agency's Committee for Medicinal Products for Human Use (CHMP) recommended crovalimab for treating PNH in adults and adolescents aged 12 and above in June 2024, based on findings from the global Phase III COMMODORE 2 clinical trial. The FDA accepted a biologics license application for crovalimab in September 2023 and subsequently approved it in June 2024 for treating PNH in adults and adolescents aged 13 years and older. Genentech, a subsidiary of Roche, has made the drug available in the US. In Japan, Chugai Pharmaceutical submitted a new drug application for PiaSky to the Japan Ministry of Health, Labour, and Welfare (MHLW) in June 2023. The drug was approved in March 2024 and launched in May 2024 for patients with PNH aged 12 years and above. In February 2024, China's National Medical Products Administration (NMPA) approved crovalimab for treating PNH in adults and adolescents aged 12 years and older who have not previously received complement inhibitor treatment, following a priority review that began in August 2022. PiaSky is also undergoing review by other regulatory authorities, including those in Europe and Taiwan. To know more about paroxysmal nocturnal hemoglobinuria treatment options, visit @ New Treatment for Paroxysmal Nocturnal Hemoglobinuria The paroxysmal nocturnal hemoglobinuria market is crowded with so many companies working in the domain. Emerging PNH therapies include Pozelimab (REGN3918) + Cemdisiran, OMS906, NM8074 (ruxoprubart), and others, reflecting a dynamic evolution in treatment strategies. Discover which therapies are expected to grab major paroxysmal nocturnal hemoglobinuria market share @ Paroxysmal Nocturnal Hemoglobinuria Market Report Pozelimab is a novel, fully human monoclonal antibody currently under investigation. It aims to inhibit complement factor C5, thereby preventing the destruction of red blood cells (hemolysis) responsible for symptoms in conditions like Paroxysmal Nocturnal Haemoglobinuria (PNH) and other diseases influenced by complement pathway activity. This IgG4 antibody binds tightly to both wild-type and variant forms of human C5, effectively blocking its function. In its ongoing development, pozelimab is also being studied in combination with Alnylam's cemdisiran, a siRNA C5 inhibitor. This investigational combination therapy is aimed at treating various complement-mediated disorders, including PNH and myasthenia gravis. OMS-906 is currently being developed to treat paroxysmal nocturnal hemoglobinuria (PNH), complement 3 glomerulopathy (C3G), idiopathic immune complex-mediated glomerulonephritis (ICGN), and arthritis. It can be administered either subcutaneously or intravenously. This drug candidate is a monoclonal antibody designed to target mannan-binding lectin serine protease 3 (MASP-3) to exert its therapeutic effects. Discover more about drugs for paroxysmal nocturnal hemoglobinuria in development @ Paroxysmal Nocturnal Hemoglobinuria Clinical Trials The anticipated launch of these emerging therapies for paroxysmal nocturnal hemoglobinuria are poised to transform the market landscape in the coming years. As these cutting-edge therapies continue to mature and gain regulatory approval, they are expected to reshape the paroxysmal nocturnal hemoglobinuria market landscape, offering new standards of care and unlocking opportunities for medical innovation and economic growth. DelveInsight estimates that in 2023, the total paroxysmal nocturnal hemoglobinuria market size in the 7MM was USD ~1.4 billion, which is expected to reach USD ~2.5 billion by 2034. This growth can be attributed to the advances in disease mechanisms that drive new diagnostics and therapeutics, fueling drug development. Additionally, the PNH market foresees positive growth, propelled by increasing cases and upcoming therapies in the forecast period. DelveInsight's latest published market report titled as Paroxysmal Nocturnal Hemoglobinuria Market Insight, Epidemiology, and Market Forecast – 2034 will help you to discover which market leader is going to capture the largest market share. The report provides comprehensive insights into the paroxysmal nocturnal hemoglobinuria country-specific treatment guidelines, patient pool analysis, and epidemiology forecast to help understand the key opportunities and assess the market's underlying potential. The paroxysmal nocturnal hemoglobinuria market report proffers epidemiological analysis for the study period 2020–2034 in the 7MM segmented into: Total Diagnosed Prevalent Cases of PNH Gender-specific Cases of PNH The report provides an edge while developing business strategies by understanding trends shaping and driving the 7MM paroxysmal nocturnal hemoglobinuria market. Highlights include: 11-year Forecast 7MM Analysis Epidemiology-based Market Forecasting Historical and Forecasted Market Analysis upto 2034 Emerging Drug Market Uptake Peak Sales Analysis Key Cross Competition Analysis Industry Expert's Opinion Access and Reimbursement Download this paroxysmal nocturnal hemoglobinuria market report to assess the epidemiology forecasts, understand the patient journeys, know KOLs' opinions about the upcoming treatment paradigms, and determine the factors contributing to the shift in the paroxysmal nocturnal hemoglobinuria market. Also, stay abreast of the mitigating factors to improve your market position in the paroxysmal nocturnal hemoglobinuria therapeutic space. Related Reports Paroxysmal Nocturnal Hemoglobinuria Epidemiology Forecast Paroxysmal Nocturnal Hemoglobinuria Epidemiology Forecast – 2032 report delivers an in-depth understanding of the disease, historical and forecasted paroxysmal nocturnal hemoglobinuria epidemiology in the 7MM, i.e., the United States, EU5 (Germany, Spain, Italy, France, and the United Kingdom), and Japan. Paroxysmal Nocturnal Hemoglobinuria Pipeline Paroxysmal Nocturnal Hemoglobinuria Pipeline Insight – 2024 report provides comprehensive insights about the pipeline landscape, pipeline drug profiles, including clinical and non-clinical stage products, and the key paroxysmal nocturnal hemoglobinuria companies, including Biocad, AKARI Therapeutics, Amgen, MorphoSys, Ra Pharmaceuticals, Alnylam Pharmaceuticals, Arrowhead Pharmaceuticals, among others. Aplastic Anemia Market Aplastic Anemia Market Insights, Epidemiology, and Market Forecast – 2034 report delivers an in-depth understanding of the disease, historical and forecasted epidemiology, as well as the market trends, market drivers, market barriers, and key aplastic anemia companies, including Pfizer, BioLineRx Ltd., Regeneron Pharmaceuticals, Gamida Cell, Elixirgen, Hangzhou Zede Pharmaceutical Technology, Cellenkos, Hemogenyx Pharmaceuticals, among others. Aplastic Anemia Pipeline Aplastic Anemia Pipeline Insight – 2024 report provides comprehensive insights about the pipeline landscape, pipeline drug profiles, including clinical and non-clinical stage products, and the key aplastic anemia companies, including Pfizer, BioLineRx, Ltd., Regeneron Pharmaceuticals, Gamida Cell, Elixirgen, 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