Atrasentan

FILSPARI holds strong market potential as the first FDA-approved non-immunosuppressive therapy for IgA nephropathy, a rare kidney disease with significant unmet needs. As more patients and providers seek disease-modifying options, FILSPARI is well-positioned to capture substantial market share, especially with favorable long-term data. LAS VEGAS, May 27, 2025 /PRNewswire/ -- DelveInsight's " FILSPARI Market Size, Forecast, and Market Insight Report" highlights the details around FILSPARI, the first and only oral, once-daily, non-immunosuppressive therapy approved in both the US and Europe for IgAN. The report provides product descriptions, patent details, and competitor products (marketed and emerging therapies) of FILSPARI. The report also highlights the historical and forecasted sales from 2020 to 2034 segmented into 7MM [the United States, the EU4 (Germany, France, Italy, and Spain), the United Kingdom, and Japan]. Travere Therapeutics' FILSPARI (sparsentan) Overview FILSPARI (sparsentan) is a once-daily oral treatment that uniquely targets two key pathways, endothelin-1 and angiotensin II (also known as DEARA), in the progression of IgA nephropathy. It is the first approved non-immunosuppressive therapy for this condition. Endothelin-1 and angiotensin II contribute to kidney function decline by promoting inflammation and fibrosis, altering podocyte structure, causing podocyte loss, and increasing the permeability of the glomerular filtration barrier. Additionally, both are vasoconstrictors that narrow blood vessels and raise pressure in the glomeruli. The drug received accelerated approval based on its ability to reduce proteinuria. Due to potential safety concerns, it is distributed under the FILSPARI Risk Evaluation and Mitigation Strategy (REMS) program. In Europe, it is marketed by CSL Vifor, and in Japan by Renalys Pharma. Results from the registration-enabling study are expected in the second half of 2025. Learn more about FILSPARI projected market size for IgAN @ FILSPARI IgA Nephropathy IgA nephropathy (IgAN) is an autoimmune disorder that disrupts kidney function by damaging the small blood vessels responsible for filtration. This damage is caused by an abnormal protein that harms the glomeruli, the kidneys' main filtering units. According to DelveInsight, there were approximately 415,000 diagnosed prevalent cases of IgAN across the seven major markets in 2024, and this number is projected to grow at a CAGR of 0.6% through 2034. Current standard care involves the use of ACE inhibitors and angiotensin II receptor blockers (ARBs), primarily to manage associated symptoms like hypertension. Currently, only a few drugs have been approved for IgAN treatment, including VANRAFIA (Atrasentan) and FABHALTA (Iptacopan) by Novartis, FILSPARI (Sparsentan) by Travere Therapeutics, and TARPEYO/KINPEYGO (budesonide) by Asahi Kasei (Calliditas Therapeutics), among others. The treatment landscape is expected to undergo major changes between 2024 and 2034, driven by the introduction of innovative therapies. DelveInsight estimates the IgAN market across the seven key regions was valued at around USD 730 million in 2024 and is projected to grow at a strong CAGR of 30.5% from 2025 to 2034. With targeted treatment options for IgAN only recently emerging and a pressing need for therapies that can delay progression to end-stage kidney disease (ESKD), significant advancements in this area are likely to profoundly reshape the market in the coming years. Discover more about the IgAN market in detail @ IgA Nephropathy Market Assessment Emerging Competitors of FILSPARI Key companies advancing therapies for IgA nephropathy include Novartis (Zigakibart/FUB523), F. Hoffmann-La Roche and Ionis Pharmaceuticals (Sefaxersen/RG6299/IONIS-FB-LRx), AstraZeneca's Alexion Pharmaceuticals (ULTOMIRIS), Vera Therapeutics (Atacicept), Vertex Pharmaceuticals (Povetacicept), Otsuka Pharmaceutical (Sibeprenlimab), Biogen (Felzartamab), Arrowhead Pharmaceuticals (ARO-C3), NovelMed (NM8074), Q32 Bio (ADX-097), Walden Biosciences (WAL0921), and Takeda Pharmaceutical (TAK-079), among others. In April 2025, Vera Therapeutics announced it had completed patient enrollment for its pivotal Phase III ORIGIN trial assessing atacicept in IgA nephropathy. The previous month, Otsuka Pharmaceutical submitted a Biologics License Application (BLA) to the FDA for sibeprenlimab, a monoclonal antibody aimed at inhibiting APRIL (A PRoliferation-Inducing Ligand) in adults with IgAN. Additionally, in July 2022, the European Commission granted Orphan Drug Designation (ODD) to BION-1301 for primary IgAN, offering regulatory benefits to support its European development. Strengthening its renal pipeline, Novartis acquired Chinook Therapeutics in August 2023 for up to $3.5 billion, adding zigakibart and other late-stage kidney-focused assets to its portfolio. To know how does FILSPARI compare to other treatments for IgA nephropathy, visit @ FILSPARI Approval Date Key Milestones of FILSPARI In November 2024, FILSPARI was approved by the MHRA for primary IgAN treatment, and sparsentan received approval in Germany for the same indication. In September 2024, the FDA granted full approval for FILSPARI to slow kidney function decline in IgAN patients, based on positive long-term results from the PROTECT Study. In April 2024, CSL Vifor and Travere Therapeutics received Conditional Marketing Authorization (CMA) from the European Commission for FILSPARI in the EU, targeting adults with IgAN and significant proteinuria. In February 2023, the US FDA granted accelerated approval to FILSPARI (sparsentan) to reduce proteinuria in adults with primary IgAN at risk of rapid progression, with priority review. Discover how FILSPARI is shaping the IgAN treatment landscape @ FILSPARI IgAN FILSPARI Market Dynamics FILSPARI, developed by Travere Therapeutics, represents a significant advancement in the treatment of IgA Nephropathy, a rare and chronic autoimmune kidney disease. Approved under the FDA's accelerated approval program in early 2023, FILSPARI is the first non-immunosuppressive therapy specifically targeting proteinuria in IgAN. It is a dual endothelin angiotensin receptor antagonist (DEARA), a novel mechanism that distinguishes it from conventional RAAS inhibitors. Its market entry has been notable for both its scientific innovation and potential to reshape the standard of care for IgAN, particularly in patients at high risk of progression to end-stage kidney disease (ESKD). The market dynamics are influenced by multiple factors, including the unmet need in IgAN, the orphan drug designation, and the limited competition in the space. Prior to FILSPARI's launch, treatment was largely supportive, focusing on blood pressure control and proteinuria reduction via ACE inhibitors or ARBs. FILSPARI's ability to deliver greater proteinuria reduction without the side effects associated with corticosteroids or immunosuppressants provides a compelling clinical and commercial value proposition. Competition is evolving, with several companies advancing novel IgAN therapeutics. Calliditas Therapeutics' TARPEYO (budesonide) was approved ahead of FILSPARI for a similar indication, but works through a corticosteroid pathway. Other players are also advancing programs, suggesting the market could become more segmented based on patient profile and mechanism of action. FILSPARI's differentiated profile, especially its dual-acting mechanism and oral administration, positions it favorably among nephrologists and specialists, but maintaining this edge will require strong real-world evidence and ongoing clinical data. From a market access and adoption standpoint, Travere has made early efforts in physician education, patient support programs, and collaboration with nephrology groups to accelerate uptake. However, broader adoption will depend on securing favorable formulary placements, long-term safety data, and sustained efficacy in delaying disease progression. As I gAN awareness grows and diagnosis rates improve through genetic and biomarker testing, the addressable patient population may expand, offering a significant growth opportunity for FILSPARI over the next 5–10 years. Dive deeper to get more insight into FILSPARI's strengths & weaknesses relative to competitors @ FILSPARI MoA Table of Contents Related Reports IgA Nephropathy Market IgA Nephropathy Market Insight, Epidemiology, and Market Forecast – 2034 report delivers an in-depth understanding of market trends, market drivers, market barriers, and key IgAN companies such as Calliditas Therapeutics AB, Travere Therapeutics, Inc., Omeros, Novartis Pharmaceuticals, Chinook Therapeutics, Inc., Vera Therapeutics, Inc., among others. IgA Nephropathy Pipeline IgA Nephropathy Pipeline Insight – 2025 report provides comprehensive insights about the pipeline landscape, pipeline drug profiles, including clinical and non-clinical stage products, and the key IgA nephropathy companies, including Chinook Therapeutics, Inc., RemeGen Co., Ltd., Novartis, Jiangsu HengRui Medicine Co., Ltd., Ionis Pharmaceuticals, Inc., Vera Therapeutics, Inc., Eledon Pharmaceuticals, Guangdong Hengrui Pharmaceutical Co., Ltd, Omeros Corporation, Otsuka Pharmaceutical, Alnylam Pharmaceuticals, MorphoSys AG, Rohto Pharmaceutical, Alexion Pharmaceuticals, Apellis Pharmaceuticals, Inc., Arrowhead Pharmaceuticals, Takeda, Travere Therapeutics, BioCryst Pharmaceuticals, Transcenta Holding, Shanghai Alebund Pharmaceuticals, DiaMedica Therapeutics, SELECTA BIOSCIENCES, Kira Pharmaceuticals, Alpine Immune Sciences, among others. Chronic Kidney Disease Market Chronic Kidney Disease Market Insights, Epidemiology, and Market Forecast – 2034 report deliver an in-depth understanding of the disease, historical and forecasted epidemiology, as well as the market trends, market drivers, market barriers, and key chronic kidney disease companies, including ProKidney, Reata Pharmaceuticals, Inc., Novo Nordisk A/S, Boehringer Ingelheim, Eli Lilly and Company, KBP Biosciences, Kibow Pharma, Cincor Pharma, AstraZeneca, Allena Pharmaceuticals, DiaMedica Therapeutics Inc, Lexicon Pharmaceuticals, Sanofi , among others. Chronic Kidney Disease Pipeline Chronic Kidney Disease Pipeline Insight – 2025 report provides comprehensive insights about the pipeline landscape, including clinical and non-clinical stage products and the key chronic kidney disease companies, including KBP Biosciences, Eli Lilly and Company, Novo Nordisk, Prokidney, Boryung Pharmaceutical, among others. About DelveInsight DelveInsight is a leading Business Consultant and Market Research firm focused exclusively on life sciences. It supports pharma companies by providing comprehensive end-to-end solutions to improve their performance. Get hassle-free access to all the healthcare and pharma market research reports through our subscription-based platform PharmDelve . Contact Us Shruti Thakur [email protected] +14699457679 Logo: SOURCE DelveInsight Business Research, LLP WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED

Products such as Tarpeyo (Calliditas), Filspari (Travere) and now Novartis’ Fabhalta and Venrafia provide physicians more options than ever before. EXTON, PA, May 08, 2025 (GLOBE NEWSWIRE) -- With multiple targeted therapies now available and SGLT2 inhibitors broadly embraced, nephrologists across the globe are redefining how they manage IgA Nephropathy (IgAN) patients. Data from Spherix Global Insights’ comprehensive Patient Chart Dynamix™ services—spanning over 2,300 patient charts across the US, EU5, Japan, and China—demonstrate the magnitude of this shift, highlighting differences in treatment patterns, product adoption, and future intent across markets. As standard treatment practice increasingly incorporates SGLT2 inhibitors—initially reserved for diabetes and then diabetic kidney disease—nephrologists are initiating these agents earlier in the treatment algorithm, citing emerging data supporting their protective effects in CKD, including IgAN. Adoption has grown substantially year-over-year in all surveyed markets. While regional differences exist, the early use of SGLT2 inhibitors, in combination with RAASi, is now widely accepted as foundational care for non-dialysis IgAN patients. Overlaying this supportive care are newly launched agents designed specifically for IgAN. Calliditas’ Tarpeyo® (budesonide) and Travere’s Filspari® (sparsentan) have quickly gained traction in the US, with prescribing steadily moving upstream in the treatment paradigm. Indeed, nearly one in five US IgAN patients are currently managed with Tarpeyo, and Filspari’s use has nearly doubled in the past year alone. Across Europe, Kinpeygo—Tarpeyo’s EU label—has seen notable growth, especially in Germany and the UK. Filspari’s limited availability at the time of fielding across many regions somewhat constrained its uptake, though future use intentions are high as access expands. In China, Nefecon (budesonide) has rapidly secured a foothold, with many patients already initiated on therapy. Despite different access landscapes, nephrologists are aligned on one key goal: reducing proteinuria to below 0.5g/day. Yet, many patients remain above this threshold despite therapy, underscoring the need for additional, more effective options. Enter Novartis, with Fabhalta® (iptacopan), recently approved in the US and garnering early interest for use in later lines of therapy. Vanrafia®, also from Novartis, has just received its first approval and is poised to further expand the treatment armamentarium. Together, these products—alongside pipeline agents targeting the complement system, APRIL/BAFF pathways, and other novel MOAs—represent a new chapter in IgAN care focused on underlying disease pathophysiology. Importantly, Spherix’s data highlight regional nuances in how nephrologists view and sequence these therapies. In Japan, tonsillectomy remains a widely accepted option and is often paired with systemic corticosteroids. In contrast, physicians in the US and China are increasingly moving away from broad immunosuppression in favor of targeted mechanisms with improved safety profiles. While there is general agreement on first-line strategies, subsequent lines of therapy are in flux, shaped by clinical experience, product availability, and evolving guideline recommendations. Physicians continue to prioritize clinical data demonstrating both proteinuria reduction and eGFR preservation when evaluating new options, though safety warnings remain a barrier to adoption for some. Even so, enthusiasm for therapies with novel mechanisms continues to grow, particularly in markets where patients remain difficult to manage despite standard therapies. With over five years of continuous tracking, Spherix Global Insights has established the most robust and consistent global dataset on IgAN, offering the industry’s most comprehensive view of how real-world treatment decisions have evolved and how emerging therapies are being integrated into clinical practice. By continuing to track real-world patient management trends and comparing data across markets, Spherix delivers actionable insights that support strategic decision-making for stakeholders across the nephrology landscape. Patient Chart Dynamix™ is an independent, data-driven service unveiling real patient management patterns through rigorous analysis of large-scale patient chart audits. Insights reveal the “why” behind treatment decisions, include year over year trending to quantify key aspects of market evolution, and integrate specialists’ attitudinal & demographic data to highlight differences between stated and actual treatment patterns. About Spherix Global Insights Spherix is a leading independent market intelligence and advisory firm that delivers commercial value to the global life sciences industry, across the brand lifecycle. The seasoned team of Spherix experts provides an unbiased and holistic view of the landscape within rapidly evolving specialty markets, including dermatology, gastroenterology, rheumatology, nephrology, neurology, ophthalmology, and hematology. Spherix clients stay ahead of the curve with the perspective of the extensive Spherix Physician Community. As a trusted advisor and industry thought leader, Spherix’s unparalleled market insights and advisory services empower clients to make better decisions and unlock opportunities for growth. To learn more about Spherix Global Insights, visit spherixglobalinsights.com or connect through LinkedIn . For more details on Spherix’s primary market research reports and interactive dashboard offerings, visit or register here: https://clientportal.spherixglobalinsights.com Spherix Global Insights Contacts Tucker Hurtado, Nephrology Franchise Head Tucker.Hurtado@SpherixGlobalInsights.com NOTICE : All company, brand or product names in this press release are trademarks of their respective holders. The findings and opinions expressed within are based on Spherix Global Insight’s analysis and do not imply a relationship with or endorsement of the companies or brands mentioned in this press release. Tucker Hurtado, Nephrology Franchise Head Spherix Global Insights 4848794284 tucker.hurtado@spherixglobalinsights.com 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.