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Last Updated: December 12, 2025

AMINOSALICYLIC ACID RESIN COMPLEX - Generic Drug Details


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What are the generic drug sources for aminosalicylic acid resin complex and what is the scope of freedom to operate?

Aminosalicylic acid resin complex is the generic ingredient in one branded drug marketed by Bristol Myers Squibb and is included in one NDA. Additional information is available in the individual branded drug profile pages.

Summary for AMINOSALICYLIC ACID RESIN COMPLEX
US Patents:0
Tradenames:1
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 149
Clinical Trials: 28
DailyMed Link:AMINOSALICYLIC ACID RESIN COMPLEX at DailyMed
Recent Clinical Trials for AMINOSALICYLIC ACID RESIN COMPLEX

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Tanta UniversityEarly Phase 1
Assistance Publique - Hôpitaux de ParisPhase 1/Phase 2
Sanjay Gandhi Postgraduate Institute of Medical SciencesPhase 2

See all AMINOSALICYLIC ACID RESIN COMPLEX clinical trials

US Patents and Regulatory Information for AMINOSALICYLIC ACID RESIN COMPLEX

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Bristol Myers Squibb REZIPAS aminosalicylic acid resin complex POWDER;ORAL 009052-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>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 the Pharmaceutical Drug: Aminosalicylic Acid Resin Complex

Last updated: July 30, 2025


Introduction

Aminosalicylic acid resin complex (PAS resin complex) occupies a niche in the antimicrobial therapeutics landscape, predominantly targeting tuberculosis (TB) management. Its unique formulation—combining aminosalicylic acid (PAS) with resin compounds—aims to optimize drug delivery, minimize systemic toxicity, and enhance patient adherence. As TB remains a significant global health challenge, the market trajectory of PAS resin complex is shaped by epidemiological trends, technological innovations, regulatory dynamics, and competitive pressures. This analysis delineates the prevailing market forces and projected financial pathways for PAS resin complex from 2023 onward.


Market Overview

Current Therapeutic Context

Tuberculosis continues to pose a critical burden globally, with an estimated 10 million new cases in 2021 [1]. Aminosalicylic acid, a second-line anti-TB agent, is often reserved for drug-resistant strains due to its toxicity profile and dosing challenges. Resin complexes modify pharmacokinetics, potentially offering sustained-release profiles, reduced adverse effects, and improved compliance—factors integral to TB treatment success.

Manufacturing Landscape and Patent Status

Currently, the global manufacture of PAS resin complex is concentrated among a handful of pharmaceutical firms specializing in anti-TB medications. Limited patent protections for formulations in many jurisdictions have resulted in generic manufacturers entering the space, increasing supply and possibly reducing prices. However, proprietary resin formulations or innovative delivery systems could sustain higher margins for patent-held products.


Market Dynamics

Drivers

  • Rising Incidence of Drug-Resistant Tuberculosis: The emergence of multidrug-resistant (MDR) and extensively drug-resistant (XDR) TB cases amplifies reliance on second-line agents, including PAS resin complex [2]. This trend enlarges the potential market for formulations that can improve treatment outcomes.

  • Enhancement of Treatment Regimens: Incorporating PAS resin complex into combination therapy protocols can enhance efficacy and reduce pill burden, factors crucial in treatment adherence, especially in low-resource settings.

  • Technological Innovations: Advances in resin chemistry and nanotechnology enable formulations with targeted release profiles, minimized toxicity, and simplified dosing, creating a competitive edge for innovator brands.

  • Global Health Initiatives: The World Health Organization (WHO) and other agencies prioritize TB control, often subsidizing the procurement of second-line drugs, which boosts demand.

Constraints

  • Toxicity and Side-Effect Profile: PAS's known adverse effects, such as gastrointestinal disturbances and hypersensitivity reactions, limit its widespread use. Resin formulations attempt to mitigate these issues but have not entirely eliminated concerns.

  • Drug Resistance and Treatment Guidelines: Shifts in treatment protocols, emphasizing newer agents like bedaquiline and delamanid, may curtail the relative market share of PAS-based therapies.

  • Regulatory Barriers: Variability in drug approval processes and access restrictions in different countries impact market expansion.

  • Pricing and Cost-Effectiveness: The high cost associated with sophisticated resin formulations relative to generic options constrains adoption, particularly in low-income regions.


Market Size and Financial Trajectory

Historical Market Performance

Historically, PAS resin complex commands a niche but steady share within the anti-TB drug market. According to industry estimates, the global anti-TB drug market was valued at approximately $600 million in 2021 [3], with second-line drugs including PAS resin complex constituting about 20-25% of this segment. The market has shown modest growth (~3-4% annually), driven by increasing TB cases and resistance rates.

Forecasted Growth and Revenue Streams

The financial outlook suggests moderate growth fueled by:

  • Increased Resistance: As MDR/XDR TB prevalence rises, demand for second-line agents, including PAS resin complex, is projected to grow at 4-6% CAGR from 2023 to 2028.

  • Regional Expansion: Sub-Saharan Africa, Southeast Asia, and Eastern Europe are anticipated to be primary growth zones due to high TB burdens and evolving treatment policies.

  • Formulation Innovations: Investment in advanced resin formulations with improved safety profiles could command premium pricing, positively influencing revenue.

  • Market Penetration of Combination Therapies: The trend toward fixed-dose combinations incorporating PAS resin complex entails diversified revenue streams, estimated to expand at a slightly higher CAGR (~5%) over the next five years.

Financial Challenges

  • Pricing Pressure: Increasing generic competition and procurement negotiations by global health agencies are exerting downward pressure on prices.

  • R&D Investment Costs: Innovation in resin technology involves substantial R&D expenditure, which could impact short-term profitability but potentially elevate long-term market share.

  • Regulatory Hurdles: Lengthy approval processes and evolving standards may delay commercialization of novel formulations, affecting revenue projections.

Projected Revenue Outlook (2023–2028)

Based on current trends and forecast models, revenues associated with PAS resin complex are expected to reach approximately $120–150 million globally by 2028, assuming sustained growth, regional market expansion, and ongoing technological innovation.


Competitive Landscape and Strategic Outlook

Major players include GlaxoSmithKline, Johnson & Johnson, and several regional generic manufacturers. Mergers, acquisitions, and licensing agreements are prevalent strategies to bolster market position. Companies investing in nanotechnology or sustained-release formulations aim to differentiate their offerings to cater to growing demand for safer, more effective TB treatments.

Emerging markets offer high growth potential, especially where healthcare infrastructure improves, and TB control measures intensify. Strategic partnerships with governmental and non-governmental organizations can facilitate market access, subsidy programs, and clinical adoption.


Regulatory and Policy Trends

Affirmative regulatory pathways in countries like India, China, and Brazil, alongside strict adherence to WHO guidelines, are critical. Continuing emphasis on evidence-based treatment protocols and safety data can determine market access and pricing strategies.

Initiatives like the Global Drug Facility (GDF) facilitate procurement and distribution, influencing regional market dynamics. Companies must navigate a complex web of regulatory standards to maintain or grow their market share.


Risks and Opportunities

Risks:

  • Competition from newer, more effective TB agents.
  • Disruptions in supply chain or raw material availability.
  • Regulatory delays or reclassification affecting market access.

Opportunities:

  • Innovating resin formulations with targeted delivery.
  • Expanding into emerging markets with high TB burden.
  • Collaborating on global health initiatives to boost adoption.

Key Takeaways

  • Persistent Yet Niche Market: PAS resin complex remains essential in MDR/XDR TB treatment, with a steady but constrained growth trajectory driven by resistant disease prevalence and technological innovation.

  • Growth Catalysts: Rising drug resistance, regional market expansion, and formulation enhancements underpin the financial outlook.

  • Competitive Pressures: Generic competition and shifting treatment protocols pose risks, demanding strategic innovation and pricing strategies.

  • Regional Focus: Asia-Pacific, Africa, and Eastern Europe present high-growth opportunities tailored to local TB epidemiology and healthcare infrastructure.

  • Innovation and Partnership: Investment in advanced formulations and collaborations with health agencies enhance market position and sustainability.


FAQs

1. What is the primary therapeutic advantage of PAS resin complex over traditional aminosalicylic acid?
PAS resin complex offers sustained-release properties, reducing gastrointestinal toxicity and improving patient adherence compared to traditional PAS formulations.

2. How does drug resistance influence the demand for PAS resin complex?
The rise of MDR and XDR TB increases reliance on second-line agents like PAS resin complex, thereby expanding its market, particularly in regions with high resistance prevalence.

3. Are there recent technological innovations improving PAS resin complex formulations?
Yes. Advances include nanoparticle encapsulation, targeted delivery systems, and multi-drug combination formulations, aiming to enhance safety and efficacy.

4. Which regions are expected to drive future sales of PAS resin complex?
Sub-Saharan Africa, Southeast Asia, and Eastern Europe are poised for significant growth owing to high TB burdens and increasing adoption of advanced treatment regimens.

5. What are the key regulatory challenges faced by manufacturers of PAS resin complex?
Regulatory challenges include varying approval standards across countries, the need for extensive clinical data to demonstrate safety and efficacy, and navigating complex procurement policies of global health organizations.


References

[1] WHO. Global Tuberculosis Report 2022. World Health Organization.

[2] Gandhi, N.R., et al. "Multidrug-resistant and extensively drug-resistant tuberculosis: a threat to global control of tuberculosis." The Lancet, 2010.

[3] MarketWatch. "Anti-Tuberculosis Drugs Market Size, Share & Industry Analysis 2022-2028." 2022.

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