Idiopathic Membranous Nephropathy Market is Predicted to Reach USD 1 Billion by 2036 Due to Rising Therapeutic Options | DelveInsight
The idiopathic membranous nephropathy market is poised for steady expansion driven by rising disease prevalence, enhanced diagnostic capabilities, and increased adoption of supportive and emerging targeted therapies such as SNP-ACTH (1-39) Gel (Cerium Pharmaceuticals), BRUKINSA (zanubrutinib) (BeiGene), GAZYVA (obinutuzumab) (Hoffmann-La Roche), MOR202 (felzartamab) (Biogen), Budoprutug (Climb Bio), and others.
New York, USA, April 06, 2026 (GLOBE NEWSWIRE) -- Idiopathic Membranous Nephropathy Market is Predicted to Reach USD 1 Billion by 2036 Due to Rising Therapeutic Options | DelveInsight
The idiopathic membranous nephropathy market is poised for steady expansion driven by rising disease prevalence, enhanced diagnostic capabilities, and increased adoption of supportive and emerging targeted therapies such as SNP-ACTH (1-39) Gel (Cerium Pharmaceuticals), BRUKINSA (zanubrutinib) (BeiGene), GAZYVA (obinutuzumab) (Hoffmann-La Roche), MOR202 (felzartamab) (Biogen), Budoprutug (Climb Bio), and others.
Recently published Idiopathic Membranous Nephropathy Market Insights report includes a comprehensive understanding of current treatment practices, idiopathic membranous nephropathy emerging drugs, market share of individual therapies, and current and forecasted market size from 2022 to 2036, segmented into leading markets [the United States, the EU4 (Germany, France, Italy, and Spain), the United Kingdom, and Japan].
Idiopathic Membranous Nephropathy Market Summary
- The market size for idiopathic membranous nephropathy was found to be USD 130 million in the 7MM in 2025.
- The United States accounted for the largest IMN treatment market size in 2025, i.e 60%, compared to other major markets, including the EU4 countries (Germany, France, Italy, and Spain), the United Kingdom, and Japan.
- In 2025, Rituximab led the US IMN treatment market, but its market share tends to decrease through 2036.
- In 2025, the 7MM had 69,500 diagnosed prevalent cases of idiopathic membranous nephropathy.
- Key idiopathic membranous nephropathy companies, including Cerium Pharmaceuticals, BeiGene, Hoffmann-La Roche, Biogen, Vertex Pharmaceuticals Incorporated, Ono Pharmaceuticals, Walden Biosciences, AstraZeneca, Climb Bio, SynAct Pharma ApS, Vera Therapeutics, Nkarta, Inc., and others, are actively working on innovative idiopathic membranous nephropathy drugs.
- Some of the key idiopathic membranous nephropathy therapies in clinical trials include SNP-ACTH (1-39) Gel, BRUKINSA (zanubrutinib), GAZYVA (obinutuzumab), MOR202 (felzartamab), ALPN-303 (povetacicept), WAL0921, ALXN1920, Budoprutug, Resomelagon (AP1189), Atacicept, NKX019, and others. These novel idiopathic membranous nephropathy therapies are anticipated to enter the idiopathic membranous nephropathy market in the forecast period and are expected to change the market.
- Among all emerging therapies, Climb Bio’s Budoprutug is in the mid-stage of development, with its expected approval by 2031 in the US.
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Key Factors Driving the Growth of the Idiopathic Membranous Nephropathy Market
- Rising IMN Prevalence: In 2025, the 7MM had approximately 70,000 diagnosed prevalent cases of Idiopathic membranous nephropathy. These are expected to rise due to the growing geriatric population and advancements in diagnostic capabilities during the forecast period (2026−2036).
- Impact of Anti-PLA2R Antibody Assays on Membranous Nephropathy Diagnosis: The availability of assays for PLA2R antibodies has led to a dramatic change in diagnostic strategy, owing to the very high specificity of anti-PLA2R antibodies for the diagnosis of membranous nephropathy.
- Next-Generation Anti-CD20 Antibodies: Rituximab is efficacious, but patients can develop drug resistance over a period of time. Roche’s Obinutuzumab is being developed with improved efficacy, helping to overcome the limitations of existing therapies.
- Launch of Emerging IMN Drugs: The dynamics of the IMN market are expected to change in the coming years due to the launch of emerging therapies such as SNP-ACTH (1-39) Gel (Cerium Pharmaceuticals), BRUKINSA (zanubrutinib) (BeiGene), GAZYVA (obinutuzumab) (Hoffmann-La Roche), MOR202 (felzartamab) (Biogen), ALPN-303 (povetacicept) (Vertex Pharmaceuticals Incorporated/Ono Pharmaceuticals), WAL0921 (Walden Bioscience), ALXN1920 (AstraZeneca), Budoprutug (Climb Bio), Resomelagon (AP1189) (SynAct Pharma ApS), Atacicept (Vera Therapeutics), NKX019 (Nkarta, Inc.), and others.
According to Stuti Mahajan, consulting manager at DelveInsight, “emerging biomarkers and novel therapeutic targets continue to reshape the MN treatment landscape, offering potential for more precise disease monitoring, improved prediction of treatment response, and the development of safer, more effective targeted therapies.”
Idiopathic Membranous Nephropathy Market Analysis
- Treatment strategies for idiopathic membranous nephropathy encompass both supportive and immunosuppressive approaches. Supportive care typically includes ACE inhibitors or ARBs, statins, diuretics, and anticoagulants.
- Immunosuppressive regimens involve corticosteroids combined with alkylating agents such as cyclophosphamide, calcineurin inhibitors like cyclosporine and tacrolimus, as well as therapies including rituximab, mycophenolate mofetil, and adrenocorticotropic hormone (ACTH).
- Evidence suggests that rituximab works by selectively depleting B cells responsible for producing pathogenic autoantibodies (e.g., anti-PLA2R), thereby targeting the root cause of the disease rather than merely alleviating symptoms.
- At present, no universally approved, disease-specific therapy exists for IMN, and treatment largely relies on supportive measures with inconsistent clinical outcomes.
- This underscores a substantial unmet need for therapies that are more targeted, effective, and better tolerated, addressing the underlying pathophysiology of the disease. In response, several companies are advancing novel therapeutic candidates designed to fulfill this gap.
- However, the late-stage pipeline for IMN remains limited. Promising emerging therapies, including Povetacicept (Vertex Pharmaceuticals/Ono Pharmaceuticals), Budoprutug (Climb Bio), and SNP-ACTH (1–39) (Cerium Pharmaceuticals), are anticipated to enter the IMN market over the forecast period.
Learn more about the idiopathic membranous nephropathy treatment options @ Idiopathic Membranous Nephropathy Treatment Market
Idiopathic Membranous Nephropathy Competitive Landscape
Some of the IMN drugs under clinical trials include SNP-ACTH (1-39) Gel (Cerium Pharmaceuticals), BRUKINSA (zanubrutinib) (BeiGene), GAZYVA (obinutuzumab) (Hoffmann-La Roche), MOR202 (felzartamab) (Biogen), ALPN-303 (povetacicept) (Vertex Pharmaceuticals Incorporated/Ono Pharmaceuticals), WAL0921 (Walden Bioscience), ALXN1920 (AstraZeneca), Budoprutug (Climb Bio), Resomelagon (AP1189) (SynAct Pharma ApS), Atacicept (Vera Therapeutics), NKX019 (Nkarta, Inc.), and others.
Cerium has developed a subcutaneous synthetic porcine ACTH therapy, SNP-ACTH (1–39) Gel, aimed at delivering accurate and consistent ACTH dosing to enhance treatment outcomes in primary membranous nephropathy. Preclinical findings indicate strong safety and efficacy, while a Phase I study in healthy volunteers confirmed favorable safety and tolerability. The company is now moving into a Phase III randomized study, in collaboration with the FDA, to assess whether SNP-ACTH (1–39) Gel can outperform rituximab in achieving durable proteinuria remission as a first-line therapy for patients at moderate to high risk. Patient enrollment for this Phase III trial is currently underway.
Vertex/Ono Pharmaceuticals’ Povetacicept is a dual-action inhibitor targeting the BAFF and APRIL cytokines, both of which are involved in B-cell activation, differentiation, and survival, thereby contributing to the development of various autoimmune conditions. By blocking these pathways, the therapy helps regulate B-cell activity. Its engineered TACI domain has shown enhanced binding affinity, potency, and tissue penetration in preclinical studies compared to other BAFF, APRIL, or combined inhibitors. The drug is presently in Phase II/III clinical development for the treatment of primary membranous nephropathy.
The anticipated launch of these emerging idiopathic membranous nephropathy therapies are poised to transform the idiopathic membranous nephropathy market landscape in the coming years. As these cutting-edge idiopathic membranous nephropathy therapies continue to mature and gain regulatory approval, they are expected to reshape the idiopathic membranous nephropathy market landscape, offering new standards of care and unlocking opportunities for medical innovation and economic growth.
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Recent Developments in the Idiopathic Membranous Nephropathy Market
- In January 2026, EMA granted Priority Medicines (PRIME) designation to povetacicept for primary membranous nephropathy.
- In November 2025, the FDA granted Fast Track Designation to povetacicept for primary membranous nephropathy.
- In November 2025, Vertex Pharmaceuticals Incorporated announced updated data for povetacicept (pove) in IgA nephropathy (IgAN) and primary membranous nephropathy (pMN) from the ongoing RUBY-3 trial at the American Society of Nephrology (ASN) Kidney Week 2025 in Houston, Texas.
- In November 2025, FPI was achieved in the PrisMN Phase II trial. The study is designed to evaluate pharmacodynamics (including B cells, anti-PLA2R, and total immunoglobulin) and preliminary efficacy (including complete and partial remission) in pMN patients with persistent proteinuria despite optimized RAAS inhibition.
- In October 2025, Climb Bio, Inc. issued a press release announcing the publication of an abstract providing new long-term follow-up clinical data for budoprutug. The follow-up clinical data from the previously conducted Phase Ib clinical trial (NCT04652570) of budoprutug in primary membranous nephropathy demonstrated long-term control of proteinuria for up to three years after initial dosing in four patients who received up to four doses of budoprutug
What is Idiopathic Membranous Nephropathy?
Idiopathic membranous nephropathy (IMN) is a chronic autoimmune kidney disorder in which the body’s immune system mistakenly targets the filtering units of the kidneys, known as glomeruli. The disease is characterized by the formation of immune complexes along the glomerular basement membrane, leading to thickening of this membrane and impaired kidney filtration. As a result, patients often develop nephrotic syndrome, marked by heavy protein loss in the urine, low blood albumin levels, swelling, and increased risk of blood clots and infections. In most cases, IMN is driven by autoantibodies, most commonly against the phospholipase A2 receptor (PLA2R), and occurs without an identifiable secondary cause such as infection, malignancy, or systemic autoimmune disease. The clinical course is variable, ranging from spontaneous remission to progressive loss of kidney function over time.
Idiopathic Membranous Nephropathy Epidemiology Segmentation
The idiopathic membranous nephropathy epidemiology section provides insights into the historical and current idiopathic membranous nephropathy patient pool and forecasted trends for the leading markets. In the US, a consistently higher number of cases are projected to be reported in the late-onset group. The number of cases of PLA2R and THSD7A antigen-specific Idiopathic Membranous Nephropathy were nearly 20,000 and 800, respectively, in 2025.
The idiopathic membranous nephropathy market report proffers epidemiological analysis for the study period 2022–2036 in the leading markets segmented into:
- Total Diagnosed Prevalent Cases of IMN
- Antigen-specific Cases of IMN
- Treated Cases of IMN
Download the report to understand idiopathic membranous nephropathy management @ Idiopathic Membranous Nephropathy Treatment Options
| Idiopathic Membranous Nephropathy Market Report Metrics | Details |
| Study Period | 2022–2036 |
| Idiopathic Membranous Nephropathy Market Report Coverage | 7MM [The United States, the EU-4 (Germany, France, Italy, and Spain), the United Kingdom, and Japan] |
| Idiopathic Membranous Nephropathy Market CAGR | 0.4% |
| Idiopathic Membranous Nephropathy Market Size in 2025 | USD 130 Million |
| Key Idiopathic Membranous Nephropathy Companies | Cerium Pharmaceuticals, BeiGene, Hoffmann-La Roche, Biogen, Vertex Pharmaceuticals Incorporated, Ono Pharmaceuticals, Walden Biosciences, AstraZeneca, Climb Bio, SynAct Pharma ApS, Vera Therapeutics, Nkarta, Inc., and others |
| Key Idiopathic Membranous Nephropathy Therapies | SNP-ACTH (1-39) Gel, BRUKINSA (zanubrutinib), GAZYVA (obinutuzumab), MOR202 (felzartamab), ALPN-303 (povetacicept), WAL0921, ALXN1920, Budoprutug, Resomelagon (AP1189), Atacicept, NKX019, and others |
Scope of the Idiopathic Membranous Nephropathy Market Report
- Idiopathic Membranous Nephropathy Therapeutic Assessment: Idiopathic Membranous Nephropathy current marketed and emerging therapies
- Idiopathic Membranous Nephropathy Market Dynamics: Conjoint Analysis of Emerging Idiopathic Membranous Nephropathy Drugs
- Competitive Intelligence Analysis: SWOT analysis and Market entry strategies
- Idiopathic Membranous Nephropathy Market Unmet Needs, KOL’s views, Analyst’s views, Idiopathic Membranous Nephropathy Market Access and Reimbursement
Discover more about idiopathic membranous nephropathy drugs in development @ Idiopathic Membranous Nephropathy Clinical Trials
Table of Contents
| 1 | Idiopathic Membranous Nephropathy Market Key Insights |
| 2 | Idiopathic Membranous Nephropathy Market Report Introduction |
| 3 | Idiopathic Membranous Nephropathy (IMN) Market Overview at a Glance |
| 3.1 | Market Share (%) Distribution of IMN by Therapies in 2025 |
| 3.2 | Market Share (%) Distribution of IMN by Therapies in 2036 |
| 4 | Methodology |
| 5 | Executive Summary of IMN |
| 6 | Key Events |
| 7 | Disease Background and Overview |
| 7.1 | Introduction |
| 7.2 | Signs and Symptoms |
| 7.3 | Classification |
| 7.4 | Causes |
| 7.5 | Pathophysiology |
| 7.6 | Biomarkers |
| 7.7 | Diagnosis |
| 8 | Treatment and Management |
| 8.1 | Treatment Strategy |
| 8.2 | Treatment of secondary MN |
| 8.3 | Treatment Guidelines |
| 9 | Epidemiology and Patient Population |
| 9.1 | Key Findings |
| 9.2 | Assumptions and Rationales: 7MM |
| 9.3 | Total Prevalent Cases of Membranous Nephropathy in the 7MM |
| 9.4 | Total Prevalent Cases of Idiopathic Membranous Nephropathy in the 7MM |
| 9.5 | The United States |
| 9.5.1 | Total Prevalent Cases of IMN in the US |
| 9.5.2 | Antigen-specific cases of IMN in the US |
| 9.5.3 | Total Treated Cases of IMN in the US |
| 9.6 | EU4 and the UK |
| 9.7 | Japan |
| 10 | Idiopathic Membranous Nephropathy Patient Journey |
| 11 | Emerging Idiopathic Membranous Nephropathy Therapies |
| 11.1 | Key Cross Competition |
| 11.2 | SNP-ACTH (1-39) Gel: Cerium Pharmaceuticals |
| 11.2.1 | Product Description |
| 11.2.2 | Other Developmental Activities |
| 11.2.3 | Clinical Developmental Activities |
| 11.2.4 | Analyst View |
| 11.3 | BRUKINSA (zanubrutinib): BeiGene |
| 11.4 | GAZYVA (obinutuzumab): Hoffmann-La Roche |
| 11.5 | MOR202 (felzartamab): Biogen |
| 11.6 | ALPN-303 (povetacicept): Vertex Pharmaceuticals Incorporated/ Ono Pharmaceuticals |
| 11.7 | WAL0921: Walden Biosciences |
| 11.8 | ALXN1920: AstraZeneca |
| 11.9 | Budoprutug: Climb Bio |
| 11.10 | Resomelagon (AP1189): SynAct Pharma ApS |
| 11.11 | Atacicept: Vera Therapeutics |
| 11.12 | NKX019: Nkarta, Inc. |
| List to be Continued in the report…. | |
| 12 | Idiopathic Membranous Nephropathy Market Analysis |
| 12.1 | Key Findings |
| 12.2 | Idiopathic Membranous Nephropathy Market Outlook |
| 12.3 | Conjoint Analysis |
| 12.4 | Key Idiopathic Membranous Nephropathy Market Forecast Assumptions |
| 12.5 | Total Market Size of IMN in the 7MM |
| 12.6 | Market Size of IMN by Therapies in the 7MM |
| 12.7 | United States Idiopathic Membranous Nephropathy Market Size |
| 12.7.1 | Total Market Size of IMN in the US |
| 12.7.2 | Market Size of IMN by Therapies in the US |
| 12.8 | EU4 and the UK Idiopathic Membranous Nephropathy Market Size |
| 12.9 | Japan Idiopathic Membranous Nephropathy Market Size |
| 13 | KOL Views on IMN |
| 14 | Idiopathic Membranous Nephropathy Market SWOT Analysis |
| 15 | Idiopathic Membranous Nephropathy Market Unmet Needs |
| 16 | Idiopathic Membranous Nephropathy Market Access and Reimbursement |
| 16.1 | United States |
| 16.2 | EU4 and the UK |
| 16.3 | Japan |
| 17 | Bibliography |
| 18 | Idiopathic Membranous Nephropathy Market Report Methodology |
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