Alpha Mannosidosis Market Size and Share

Alpha Mannosidosis Market (2025 - 2030)
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Alpha Mannosidosis Market Analysis by Mordor Intelligence

The alpha-mannosidosis treatment market size stood at USD 433.1 million in 2025 and is forecast to expand to USD 938.5 million by 2030, advancing at a 16.4% CAGR. Mounting post-approval demand for velmanase alfa, pipeline progress in gene therapy, and expanding newborn-screening programs collectively fuel this double-digit trajectory. Intensifying diagnosis efforts shift discovery from symptomatic to presymptomatic stages, widening the addressable pool of roughly 5,000 diagnosed patients. Competitive intensity rises as single-treatment gene therapies threaten the chronic-infusion model that currently dominates revenue. Europe retains first-mover advantage through earlier reimbursement, yet North America now propels overall growth after the FDA’s 2024 approval of Lamzede. Persistently high annual treatment costs, however, temper near-term penetration in price-sensitive regions, compelling manufacturers to explore value-based agreements and patient-assistance funds.

Key Report Takeaways

  • By therapy type, enzyme replacement therapy held 82.4% of the alpha-mannosidosis treatment market share in 2024, while gene therapy is projected to surge at an 18.4% CAGR through 2030. 
  • By route of administration, intravenous infusion accounted for 81.8% of the alpha-mannosidosis treatment market size in 2024; systemic viral-vector delivery is forecast to grow at a 17.3% CAGR to 2030. 
  • By geography, Europe commanded 41.3% revenue in 2024, whereas North America will post the fastest 15.7% CAGR during 2025-2030.

Segment Analysis

By Therapy Type: ERT Dominance Faces Gene Therapy Disruption

The enzyme-replacement segment represented 82.4% of the alpha-mannosidosis treatment market in 2024, anchored by velmanase alfa’s first-to-market advantage. Gene therapies, buoyed by six pediatric-disease designations and venture-capital inflows, are forecast to post an 18.4% CAGR through 2030, setting a disruptive tone. Hematopoietic stem-cell transplants secure clinical relevance for severe neurologic phenotypes, with post-2000 survival at 86% versus 64% pre-2000. Supportive multidisciplinary care—including audiology, immunology, and physiotherapy—expands as standard protocols mature. Pharmacological-chaperone candidates seek to correct misfolded lysosomal enzymes, though none have yet reached pivotal trials.

Robust real-world registry data underscore velmanase alfa durability, convincing payers of sustained clinical return. However, single-dose AAV vectors threaten recurring-revenue models, compelling Chiesi to diversify via grants that fund next-generation research. SmartPharm’s gene-encoded-enzyme platform illustrates hybrid approaches that could lengthen expression without permanent genome integration. As these modalities converge, the alpha-mannosidosis treatment market will increasingly reward therapies that pair CNS reach with simplified administration schedules.

Alpha Mannosidosis Market: Market Share by Therapy Type
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By Route of Administration: IV Infusion Leadership Challenged by Viral Vectors

Intravenous infusion held 81.8% of the alpha-mannosidosis treatment market size in 2024, reflecting the entrenched velmanase alfa protocol and reimbursed infusion-center networks. Systemic viral-vector delivery, still investigational, shows a 17.3% forecast CAGR as clinical programs advance toward pivotal readouts. Surgical transplant routes apply to allogeneic stem-cell procedures for high-risk pediatric cases, while intrathecal AAV dosing is under exploration to overcome CNS exposure gaps. Subcutaneous-ERT formulations in preclinical stages aim to shift administration from hospital to home, aligning with broader rare-disease convenience trends.

Health-economic analyses in Germany reveal that home-infusion incurs no cost premium over hospital administration, encouraging wider insurer adoption. Viral-vector suppliers tout single-visit dosing as a transformative patient-experience upgrade, yet long-term immunological monitoring remains mandatory. Advances in receptor-mediated transport technologies envision intravenous ERT that crosses the blood–brain barrier, potentially reviving infusion’s relevance. Route-of-delivery innovation thus mirrors the competitive tension between chronic and curative paradigms within the alpha-mannosidosis treatment market.

Alpha Mannosidosis Market: Market Share by Route of Administration
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Geography Analysis

Europe, with a 41.3% revenue share in 2024, benefits from EMA's 2018 approval of velmanase alfa and well-established orphan-drug reimbursement mechanisms. Germany and France each reimburse more than 100 rare-disease medicines, fostering early and sustained uptake. In contrast, Central and Eastern Europe still struggle with limited reimbursement pathways, perpetuating unequal access gaps. MetabERN harmonizes clinical pathways across member states, easing cross-border knowledge transfer and bolstering adoption rates.

North America now represents the fastest-growing region, projected at a 15.7% CAGR through 2030, following the FDA's landmark 2024 green light. The United States leverages orphan-drug incentives and an expanding newborn-screening infrastructure exemplified by New Jersey's operational rollout. Canada and Mexico are aligning regulatory review procedures with US precedents, though differential pricing hurdles remain. Public debate over ultra-high-cost medicines intensifies pressure for outcome-based funding models, yet payer appetite for transformative rare-disease therapies persists.

Asia-Pacific and Latin America offer long-term upside, tempered by reimbursement constraints and limited infusion-center capacity. China's genomic newborn-screening pilot demonstrates technological readiness, recording lysosomal disorder detection at population scale. Japan participates actively in pivotal gene-therapy trials, which may accelerate domestic approval once global filings commence. Regional governments weigh the economic rationale of early detection against per-patient therapy costs, suggesting phased adoption as prices normalize. Collectively, geographic heterogeneity shapes a multi-speed growth pattern for the alpha-mannosidosis treatment market.

Alpha Mannosidosis Market CAGR (%), Growth Rate by Region
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Competitive Landscape

The market exhibits moderate concentration, anchored by Chiesi Farmaceutici, whose Lamzede franchise enjoys multinational approvals and dedicated real-world evidence programs. M6P Therapeutics advances mannose-6-phosphate-tagged gene constructs, leveraging six Rare Pediatric Disease Designations to secure expedited reviews. SmartPharm Therapeutics pursues a gene-encoded enzyme platform that could extend expression while sidestepping permanent genome edits. Orchard Therapeutics, now under Kyowa Kirin, brings commercial expertise from Lenmeldy’s launch, positioning the acquirer to cross-pollinate manufacturing and market-access capabilities.

Strategic collaborations intensify: Sobi broadened its Ionis alliance to deepen rare-disease reach, while REGENXBIO partnered with Nippon Shinyaku to commercialize MPS gene therapies that share manufacturing platforms with alpha-mannosidosis candidates. Chiesi’s 2024 research-grant initiative aims to foster academic breakthroughs in lysosomal science, signaling pre-emptive defense against gene-therapy disruption.

White-space competition centers on CNS-penetrant modalities: any company that demonstrates convincing neurocognitive benefit could rapidly capture share from velmanase alfa’s somatic-only relief. Manufacturer success will depend on differentiating across durability, convenience, and neurological efficacy rather than marginal biochemical endpoints. As pipeline heterogeneity grows, sustained portfolio-level expertise across multiple lysosomal storage disorders will increasingly determine bargaining power with payers and regulators alike. These factors collectively shape a dynamic competitive narrative for the alpha-mannosidosis treatment market.

Alpha Mannosidosis Industry Leaders

  1. Chiesi Farmaceutici S.p.A.

  2. Sobi

  3. Orchard Therapeutics plc

  4. Avrobio Inc.

  5. Ultragenyx Pharmaceutical Inc.

  6. *Disclaimer: Major Players sorted in no particular order
Alpha Mannosidosis Market
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Recent Industry Developments

  • March 2025: Sobi expanded its partnership with Ionis Pharmaceuticals to include olezarsen commercialization outside the US.
  • January 2025: REGENXBIO forged a USD 110 million collaboration with Nippon Shinyaku covering RGX-121 and related lysosomal-storage-disorder gene therapies
  • June 2024: FDA granted approval to Lamzede, inaugurating enzyme replacement therapy access for US alpha-mannosidosis patients.
  • January 2024: Kyowa Kirin completed its acquisition of Orchard Therapeutics to secure a rare-disease gene-therapy platform.

Table of Contents for Alpha Mannosidosis Industry Report

1. Introduction

  • 1.1 Study Assumptions & Market Definition
  • 1.2 Scope of the Study

2. Research Methodology

3. Executive Summary

4. Market Landscape

  • 4.1 Market Overview
  • 4.2 Market Drivers
    • 4.2.1 Rise In Post-Approval Uptake Of Lamzede (Velmanase Alfa) ERT
    • 4.2.2 Increasing Newborn-Screening Pilots For Lysosomal Storage Disorders
    • 4.2.3 Expansion Of Compassionate-Use & Early-Access Programs
    • 4.2.4 Gene-Therapy Pipeline Breakthroughs (AAV & LNP Platforms)
    • 4.2.5 Multi-Country Orphan-Drug Reimbursement Harmonization In EU
    • 4.2.6 AI-Enabled Ultra-Rare-Disease Patient-Finding Algorithms
  • 4.3 Market Restraints
    • 4.3.1 High Annual Treatment Cost & Pricing Pushback
    • 4.3.2 Limited Blood-Brain-Barrier Penetration of Current ERT
    • 4.3.3 Scarce Long-Term Real-World Safety Data
    • 4.3.4 Competition For Bone-Marrow Donor Matches Limiting HSCT Uptake
  • 4.4 Supply-Chain Analysis
  • 4.5 Regulatory Landscape
  • 4.6 Technological Outlook
  • 4.7 Porter's Five Forces Analysis
    • 4.7.1 Bargaining Power of Suppliers
    • 4.7.2 Bargaining Power of Buyers
    • 4.7.3 Threat of New Entrants
    • 4.7.4 Threat of Substitutes
    • 4.7.5 Competitive Rivalry

5. Market Size & Growth Forecasts (Value, USD)

  • 5.1 By Therapy Type
    • 5.1.1 Enzyme Replacement Therapy
    • 5.1.2 Hematopoietic Stem-Cell Transplantation
    • 5.1.3 Gene Therapy
    • 5.1.4 Supportive & Adjunctive Care
    • 5.1.5 Investigational Pharmacological Chaperones
  • 5.2 By Route of Administration
    • 5.2.1 Intravenous Infusion
    • 5.2.2 Surgical Transplant Administration
    • 5.2.3 Intrathecal / CNS-direct Delivery
    • 5.2.4 Systemic Viral Vector Delivery
    • 5.2.5 Other Routes
  • 5.3 By Geography
    • 5.3.1 North America
    • 5.3.1.1 United States
    • 5.3.1.2 Canada
    • 5.3.1.3 Mexico
    • 5.3.2 Europe
    • 5.3.2.1 Germany
    • 5.3.2.2 United Kingdom
    • 5.3.2.3 France
    • 5.3.2.4 Italy
    • 5.3.2.5 Spain
    • 5.3.2.6 Rest of Europe
    • 5.3.3 Asia-Pacific
    • 5.3.3.1 China
    • 5.3.3.2 Japan
    • 5.3.3.3 India
    • 5.3.3.4 South Korea
    • 5.3.3.5 Australia
    • 5.3.3.6 Rest of Asia-Pacific
    • 5.3.4 Middle East & Africa
    • 5.3.4.1 GCC
    • 5.3.4.2 South Africa
    • 5.3.4.3 Rest of Middle East & Africa
    • 5.3.5 South America
    • 5.3.5.1 Brazil
    • 5.3.5.2 Argentina
    • 5.3.5.3 Rest of South America

6. Competitive Landscape

  • 6.1 Market Concentration
  • 6.2 Market Share Analysis
  • 6.3 Company Profiles (includes Global level Overview, Market level overview, Core Segments, Financials as available, Strategic Information, Market Rank/Share for key companies, Products & Services, and Recent Developments)
    • 6.3.1 Chiesi Farmaceutici S.p.A.
    • 6.3.2 Sobi (Swedish Orphan Biovitrum)
    • 6.3.3 Orchard Therapeutics plc
    • 6.3.4 Avrobio Inc.
    • 6.3.5 Ultragenyx Pharmaceutical Inc.
    • 6.3.6 Regenxbio Inc.
    • 6.3.7 Rocket Pharmaceuticals Inc.
    • 6.3.8 M6P Therapeutics
    • 6.3.9 SmartPharm Therapeutics
    • 6.3.10 CSL Behring LLC
    • 6.3.11 Takeda Pharmaceutical Company Ltd.
    • 6.3.12 JCR Pharmaceuticals Co., Ltd.
    • 6.3.13 Leadiant Biosciences Inc.
    • 6.3.14 ArmaGen Inc.
    • 6.3.15 Sangamo Therapeutics
    • 6.3.16 Astellas Gene Therapies
    • 6.3.17 Bluebird Bio Inc.
    • 6.3.18 Genethon
    • 6.3.19 Passage Bio
    • 6.3.20 Denali Therapeutics

7. Market Opportunities & Future Outlook

  • 7.1 White-space & Unmet-Need Assessment
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Global Alpha Mannosidosis Market Report Scope

By Therapy Type
Enzyme Replacement Therapy
Hematopoietic Stem-Cell Transplantation
Gene Therapy
Supportive & Adjunctive Care
Investigational Pharmacological Chaperones
By Route of Administration
Intravenous Infusion
Surgical Transplant Administration
Intrathecal / CNS-direct Delivery
Systemic Viral Vector Delivery
Other Routes
By Geography
North America United States
Canada
Mexico
Europe Germany
United Kingdom
France
Italy
Spain
Rest of Europe
Asia-Pacific China
Japan
India
South Korea
Australia
Rest of Asia-Pacific
Middle East & Africa GCC
South Africa
Rest of Middle East & Africa
South America Brazil
Argentina
Rest of South America
By Therapy Type Enzyme Replacement Therapy
Hematopoietic Stem-Cell Transplantation
Gene Therapy
Supportive & Adjunctive Care
Investigational Pharmacological Chaperones
By Route of Administration Intravenous Infusion
Surgical Transplant Administration
Intrathecal / CNS-direct Delivery
Systemic Viral Vector Delivery
Other Routes
By Geography North America United States
Canada
Mexico
Europe Germany
United Kingdom
France
Italy
Spain
Rest of Europe
Asia-Pacific China
Japan
India
South Korea
Australia
Rest of Asia-Pacific
Middle East & Africa GCC
South Africa
Rest of Middle East & Africa
South America Brazil
Argentina
Rest of South America
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Key Questions Answered in the Report

How large is the addressable patient population for alpha-mannosidosis worldwide?

Fewer than 5,000 diagnosed patients are currently identified, reflecting an incidence of 1 in 500,000-1,000,000 live births.

What CAGR is projected for alpha-mannosidosis treatment spending between 2025 and 2030?

Aggregate spending is expected to climb at a 16.4% CAGR, rising from USD 433 million in 2025 to USD 938 million in 2030.

Which therapy type is forecast to grow fastest through 2030?

Gene therapy is projected to post an 18.4% CAGR, outpacing enzyme-replacement therapy as programs advance toward late-stage trials.

How do annual drug costs influence payer access decisions?

Price points above USD 650,000 per year trigger outcome-based contracts and patient-assistance schemes, especially in price-sensitive or single-payer systems.

Which region is expected to record the highest growth by 2030?

North America is set to achieve the fastest 15.7% CAGR following the FDA's approval of velmanase alfa and expanding newborn-screening initiatives.

Why is CNS penetration a critical unmet need in current treatments?

Present enzyme-replacement regimens do not cross the blood-brain barrier, leaving cognitive decline unmanaged and underscoring the need for CNS-targeted solutions.

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