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Last Updated: March 26, 2026

NASALCROM Drug Patent Profile


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When do Nasalcrom patents expire, and when can generic versions of Nasalcrom launch?

Nasalcrom is a drug marketed by Blacksmith Brands and is included in one NDA.

The generic ingredient in NASALCROM is cromolyn sodium. There are ten drug master file entries for this compound. Fourteen suppliers are listed for this compound. Additional details are available on the cromolyn sodium profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Nasalcrom

A generic version of NASALCROM was approved as cromolyn sodium by SANDOZ on June 16th, 1999.

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Summary for NASALCROM
Drug patent expirations by year for NASALCROM
Recent Clinical Trials for NASALCROM

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SponsorPhase
Vishwajit Nimgaonkar, MD PhDPhase 1/Phase 2
Stanley Medical Research InstitutePhase 1/Phase 2
Wolfson Medical CenterPhase 3

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US Patents and Regulatory Information for NASALCROM

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Blacksmith Brands NASALCROM cromolyn sodium SPRAY, METERED;NASAL 020463-001 Jan 3, 1997 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Market Dynamics and Financial Trajectory for NASALCROM (Cromolyn Sodium Nasal Spray)

Last updated: January 16, 2026


Executive Summary

NASALCROM (cromolyn sodium nasal spray) is a mast cell stabilizer primarily used to prevent allergic rhinitis and nasal allergy symptoms. The product's market landscape has experienced evolving dynamics driven by allergy prevalence, regulatory environment, competitive landscape, and advancements in alternative therapies. Its financial trajectory reflects fluctuations rooted in patent expirations, emergence of generics, and shifting consumer preferences. This report offers a comprehensive analysis of market drivers, challenges, revenue forecasts, and strategic considerations pertinent to NASALCROM.


What Is NASALCROM?

Component Details
Generic Name Cromolyn Sodium (Nasal Spray)
Brand Name NASALCROM (by Fisons, Sanofi, others)
Approval Year 1976 (FDA approval in the U.S.)
Indications Allergic rhinitis, nasal allergies, seasonal allergic rhinitis
Formulation 340 mcg per spray; typically 1-2 sprays per nostril up to 4 times daily

Market Overview

Global Allergy Market
The global allergy treatment market was valued at approximately USD 20.4 billion in 2022 and is projected to reach USD 32.7 billion by 2030, expanding at a CAGR of around 6.2%. NASALCROM occupies a niche within this segment, predominantly in allergy prophylaxis.

Nasal Spray Segment
Nasal steroids and antihistamines dominate the nasal allergic response treatment market, often sidelining mast cell stabilizers like cromolyn due to perceived efficacy differences.

Key Regions Region Market Share Growth Drivers
North America 45% High prevalence of allergic rhinitis, robust healthcare infrastructure
Europe 30% Increasing allergy awareness, regulatory support for allergy medications
Asia-Pacific 15% Rising urban pollution, allergy prevalence, unmet medical needs
Rest of World 10% Low to moderate penetration, increasing awareness

Market Dynamics

1. Prevalence of Allergic Rhinitis and Nasal Allergies

The prevalence of allergic rhinitis affects the demand for NASALCROM. In North America, approximately 8-20% of adults and children are affected globally, according to the World Allergy Organization (WAO)[1].

2. Competitive Landscape

Competitors Key Products Market Position
Fluticasone Propionate (Flonase) Inhaled corticosteroid nasal spray Dominant in nasal glucocorticoids
Mometasone Furoate (Nasonex) Nasal corticosteroid Market leader in prescription nasal sprays
Azelastine (Astelin) Antihistamine nasal spray Competitive allergy treatment
Cromolyn Sodium (NASALCROM) Mast cell stabilizer (nasal spray) Niche, with limited market share

3. Regulatory and Patent Considerations

  • Patent Status:
    NASALCROM's patent protection expired in early 2000s in many markets, opening doors for generics, diluting revenue streams.

  • Regulatory Environment:
    Renewed interest in non-steroidal options due to steroid adverse effect concerns supports the niche for cromolyn-based therapies, albeit with limited aggressive regulatory incentives.

4. Pricing and Reimbursement Policies

Factor Impact
Reimbursement Levels Moderate, varies across regions; low in developing markets
Pricing Strategy Typically low-cost; commoditized post-generic entry

5. Consumer and Physician Preferences

Growing preference for OTC options in some regions enhances accessibility; however, the relatively modest efficacy profile limits blockbuster potential.

6. Advancements & Innovation

Research into combination therapies and novel delivery mechanisms (e.g., fast-absorbing nasal devices) aim to improve device efficacy and patient compliance.


Financial Trajectory

Year Estimated Revenue (USD Millions) Growth/Decline Drivers
2010 30 Patent protections enforced, niche market
2015 20 Decline (~33%) Patent expiry, generic entry, market saturation
2020 15 Further decline (~25%) Competition with nasal steroids, reduced prescribing
2022 12 Stabilization Niche demand, OTC availability
2025* 10-12 Slight decline Generic proliferation, clinical preference shift

*Projections based on current market trends, patent expiry effects, and generics proliferation.

Revenue Drivers & Challenges

Drivers Challenges
Established safety profile Lower efficacy compared to steroids
Non-steroidal option for steroid-sensitive patients Market dominance of nasal corticosteroids
Growing awareness of drug safety concerns Limited marketing and branding initiatives
OTC availability in some markets Competition from antihistamines and nasal steroids

Strategic Considerations for Market Sustainment

  • Product Differentiation: Focus on safety profile and minimal side effects.
  • Innovation: Develop new formulations or delivery systems to improve efficacy and compliance.
  • Partnerships: Collaborate with OTC distributors and healthcare providers.
  • Market Expansion: Target emerging markets with rising allergy prevalence.
  • Regulatory Advocacy: Push for broader indications, including pediatric and seasonal allergy uses.

Comparison with Mainstream Therapies

Attribute NASALCROM (Cromolyn Sodium) Nasal Steroids (e.g., Fluticasone) Antihistamines (e.g., Azelastine)
Mechanism of Action Mast cell stabilizer Anti-inflammatory (steroids) Histamine receptor blockade
Efficacy Moderate High Moderate to high
Speed of Relief Slow to moderate Rapid Rapid
Safety Profile Excellent, non-steroidal Good, with potential steroid side effects Good
Price Low Higher Moderate

Key Market Drivers and Inhibitors

Drivers Inhibitors
Rising allergy prevalence Market dominance of steroids, antihistamines
Patient preference for non-steroid therapy Limited efficacy perception of cromolyn
Growing OTC availability Competition from newer biologics (e.g., omalizumab)
Regulatory support for allergy management Generic price erosion

FAQs

Q1: What factors are influencing NASALCROM's market share?
Market share is influenced by competition from nasal corticosteroids, the availability of generics, clinician prescribing habits, and consumer preferences for faster-acting therapies.

Q2: How does NASALCROM compare economically with alternatives?
It remains a low-cost, niche product, especially in OTC markets, but faces pricing pressure due to patent expirations and generic entries.

Q3: What are the prospects for NASALCROM in emerging markets?
Growing allergy incidence and limited access to newer treatments create opportunities; however, price sensitivity and competition from local generics pose challenges.

Q4: Are there ongoing innovations that could enhance NASALCROM's market position?
Yes, research into improved formulations, delivery devices, and combination therapies could bolster efficacy and patient adherence.

Q5: What regulatory changes could impact NASALCROM's future?
Enhanced approvals for broader indications, inclusion in combination therapies, or favorable OTC status could expand its market potential.


Key Takeaways

  • NASALCROM's primary utility remains as a non-steroidal, safe, prophylactic option for allergic rhinitis, with a stable but declining market share.
  • Patent expirations and the dominance of nasal steroids have accelerated revenue erosion, emphasizing the need for innovation.
  • The global allergy market is growing, especially in Asia-Pacific, presenting opportunities for niche treatments like NASALCROM when paired with strategic marketing.
  • Future growth depends on product innovation, regulatory support, and expanded indications aimed at capturing unmet needs.
  • Pricing strategies and partnership models can sustain its niche presence amidst stiff competition.

To capitalize on these market dynamics, companies must align product development with evolving regulatory landscapes and consumer preferences, leveraging the non-steroidal safety profile to carve out sustained market share.


References

  1. World Allergy Organization. (2021). "Allergic Rhinitis Prevalence and Impact."
  2. Market Research Future. (2022). "Global Allergy Treatment Market Analysis."
  3. U.S. Food and Drug Administration. (1976). "Nasal Cromolyn Sodium Approval."
  4. GlobalData. (2022). "Pharmaceutical Market Insights."
  5. Goodman & Gilman's The Pharmacological Basis of Therapeutics, 13th Ed. (2017).

Disclaimer: Data presented reflect projections based on current trends and industry reports, and actual future performance may vary due to market, regulatory, or scientific developments.

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