Allergy Immunotherapy Market to Reach $4.9 billion by 2033 Globally, at 10.4% CAGR: Allied Market Research

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Feb 25, 2026, 10:30 ET

Rise in prevalence of allergy cases and surge in focus on personalized medicine are the major factors that drive the growth of the allergy immunotherapy market. However, the risk of side effects hinders the market growth. Moreover, increase in focus on advancements in immunotherapy treatments offer remunerative opportunities for the expansion of the global allergy immunotherapy market.

WILMINGTON, Del., Feb. 25, 2026 /PRNewswire/ -- Allied Market Research published a report, titled, "Allergy Immunotherapy Market by Type (Subcutaneous Immunotherapy and Sublingual Immunotherapy), Application (Allergy Rhinitis, Asthma, Food Allergy and Others), and Distribution Channel (Hospital Pharmacies, Retail and Online Pharmacies): Global Opportunity Analysis and Industry Forecast, 2024-2033". According to the report, the allergy immunotherapy market was valued at $1.8 billion in 2023, and is estimated to reach $4.9 billion by 2033, growing at a CAGR of 10.4% from 2024 to 2033.

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Segment Overview

The subcutaneous immunotherapy segment held the highest market share in 2023.

By type, the subcutaneous immunotherapy segment held the highest share in the year 2023. Subcutaneous immunotherapy helps reduce allergy symptoms. It is known to offer sustained relief even after treatment ends. This safety profile makes it a preferred choice among allergists. This drives the growth of the subcutaneous immunotherapy segment.

Hospital pharmacies are the major distributors of allergy immunotherapy

Hospital pharmacies distribute allergy immunotherapy medication to ensure patients receive proper treatment. They manage inventory and provide expert guidance on administration. Also, these pharmacies are easy to access. They are known to provide expertise for patients undergoing allergy treatment. This makes them a safe and effective distributor of allergy immunotherapy. This drives the growth of the hospital pharmacies segment.

How Do Government Policies and Regulations Impact Regional Market Growth?

Government policies and regulatory frameworks play an important role in shaping regional allergy immunotherapy markets. These policies influence market access, reimbursement coverage, product approvals, and patient adoption rates. Favorable reimbursement policies significantly increase patient access to allergy immunotherapy treatments in regions with strong public or private insurance systems. Patient out-of-pocket expenses decrease when immunotherapy products are covered under national health plans or insurance schemes. This leads to higher adoption and sustained therapy demand.

Regulatory bodies also influence the reach of new immunotherapy products in the market. Streamlined approval processes and clear regulatory pathways encourage innovation and allow manufacturers to bring new products to patients. Public funding for allergy research, clinical trials, and treatment infrastructure helps improve product development. Government grants and partnerships with academic institutions help advance personalized immunotherapy approaches and novel treatment options.

Regional Outlook

The allergy immunotherapy market is studied across North America, Europe, Asia-Pacific, and LAMEA. High healthcare expenditure and advanced medical infrastructure drive market growth in in North America and Europe. This growth across the regions is also supported by rise in allergy prevalence and awareness. Increase in healthcare investments and sure in awareness about allergic conditions are expected to boost market demand in Asia-Pacific. Improvements in healthcare systems and increase in focus on chronic diseases boost the growth across LAMEA.

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What Are the Strategies Adopted by the Key Players in the Market?

The global allergy immunotherapy market is competitive and growing, with strategies focused on innovation, product portfolio expansion, strategic alliances, and geographic reach expansion to strengthen market positions. Leading companies prioritize the development of new and improved immunotherapy treatments. For example, ALK-Abelló has a robust pipeline with sublingual immunotherapy (SLIT) tablets and subcutaneous immunotherapy (SCIT) formulations covering grass pollen, dust mite, and tree pollen allergies. Its focus on innovation helps maintain market leadership, especially in the respiratory allergy segment.

R&D investment is a core strategy for key players aiming to introduce next-generation therapies. These include novel delivery technologies, recombinant allergen platforms, and personalized treatments targeting broader allergy types. Companies like Allergy Therapeutics and Biomay AG work on advanced biological extracts and immunotherapy approaches to enhance efficacy and patient adherence.

Partnerships are widely used to accelerate product development and expand market reach. Collaborations with academic institutions, diagnostic firms, and healthcare providers help integrate research insights into clinical practice. For instance, companies collaborate to develop biomarkers that predict immunotherapy response, improving treatment personalization.

Key Players

¨ Torii Pharmaceutical Co., Ltd.

¨ Biomay AG

¨ ALK-Abello A/S

¨ Allergy Therapeutics

¨ Allovate, LLC

¨ HAL Allergy Group

¨ Jubliant Pharma

¨ Leti Pharma

¨ Merck KGaA

¨ Stallergenes Greer

The report provides a detailed analysis of these key players in the global Allergy immunotherapy market. These players have adopted different strategies such as expansion, product approval, clinical trails, product launch and others to increase their market share and maintain dominant shares in different regions. The report is valuable in highlighting business performance, operating segments, product portfolio, and strategic moves of market players to showcase the competitive scenario.

Recent Industry Development

¨ In May 2024, ALK-Abelló A/S, a pharmaceutical company which specializes in the development and manufacturing of allergy immunotherapy products, announced the European regulatory filing for ITULAZAX (tree sublingual allergy immunotherapy (SLIT) tablet) in young children has been accepted for review by the relevant health authorities.

¨ In October 2021, Stallergenes Greer, a global healthcare company specialising in allergen immunotherapy (AIT), announced that the company has entered into an exclusive partnership with Aptar Pharma, a global leader in drug delivery systems, services and active material science solutions, for the development of the first of its kind connected device and companion mobile app for patients undergoing Stallergenes Greer's AIT treatments with sublingual solutions.

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How Intense Is Market Competition and What Defines Competitive Advantage?

Competition in the global allergy immunotherapy market is moderate to high, shaped by a mixture of well-established pharmaceutical firms and specialized biotech innovators. A few dominant players command significant market shares, while others compete in niche segments like food allergies and novel delivery methods.

The market exhibits a semi-consolidated structure, where a handful of companies hold the largest revenue share. For example, ALK-Abelló is often cited as the leading market player, supported by a diversified allergy immunotherapy portfolio. Other companies like Stallergenes Greer, Allergy Therapeutics, and HAL Allergy Group also maintain meaningful positions through their offerings in subcutaneous and sublingual therapies.

Innovators such as DBV Technologies are developing epicutaneous (patch-based) immunotherapy, representing a different delivery method competing with traditional injections and sublingual tablets. The food allergy segment is an emerging competitive area, prompting investment from firms such as Aimmune Therapeutics, which focuses on oral immunotherapy products.

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