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Last Updated: December 12, 2025

CLINICAL TRIALS PROFILE FOR GUAIFENESIN; PSEUDOEPHEDRINE HYDROCHLORIDE


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All Clinical Trials for guaifenesin; pseudoephedrine hydrochloride

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00000752 ↗ Preventing Frequent Sinus Infections in HIV-Infected Patients Withdrawn Adams Laboratories Phase 2 1969-12-31 To evaluate the additional effectiveness of an anti-inflammatory nasal spray ( beclomethasone dipropionate ) and a broad spectrum antibiotic ( cefuroxime axetil ) over decongestant ( Deconsal II ) alone, when these agents are given individually or in combination for the prevention of recurrent paranasal sinus infection in patients with HIV infection. To compare the clinical utility of paranasal sinus radiographs with computed tomograms (CTs) in the evaluation and management of HIV-infected patients with recurrent paranasal sinus infection. To determine relevant prognostic factors and the microbiologic etiology of maxillary sinusitis in this patient population. Sinusitis is common among HIV-infected patients and is likely to be recurrent or refractory to traditional therapy, particularly in patients with advanced immunosuppression. An intervention aimed at prevention of recurrent sinus disease in HIV-infected patients appears to be warranted.
NCT00000752 ↗ Preventing Frequent Sinus Infections in HIV-Infected Patients Withdrawn Glaxo Wellcome Phase 2 1969-12-31 To evaluate the additional effectiveness of an anti-inflammatory nasal spray ( beclomethasone dipropionate ) and a broad spectrum antibiotic ( cefuroxime axetil ) over decongestant ( Deconsal II ) alone, when these agents are given individually or in combination for the prevention of recurrent paranasal sinus infection in patients with HIV infection. To compare the clinical utility of paranasal sinus radiographs with computed tomograms (CTs) in the evaluation and management of HIV-infected patients with recurrent paranasal sinus infection. To determine relevant prognostic factors and the microbiologic etiology of maxillary sinusitis in this patient population. Sinusitis is common among HIV-infected patients and is likely to be recurrent or refractory to traditional therapy, particularly in patients with advanced immunosuppression. An intervention aimed at prevention of recurrent sinus disease in HIV-infected patients appears to be warranted.
NCT00000752 ↗ Preventing Frequent Sinus Infections in HIV-Infected Patients Withdrawn National Institute of Allergy and Infectious Diseases (NIAID) Phase 2 1969-12-31 To evaluate the additional effectiveness of an anti-inflammatory nasal spray ( beclomethasone dipropionate ) and a broad spectrum antibiotic ( cefuroxime axetil ) over decongestant ( Deconsal II ) alone, when these agents are given individually or in combination for the prevention of recurrent paranasal sinus infection in patients with HIV infection. To compare the clinical utility of paranasal sinus radiographs with computed tomograms (CTs) in the evaluation and management of HIV-infected patients with recurrent paranasal sinus infection. To determine relevant prognostic factors and the microbiologic etiology of maxillary sinusitis in this patient population. Sinusitis is common among HIV-infected patients and is likely to be recurrent or refractory to traditional therapy, particularly in patients with advanced immunosuppression. An intervention aimed at prevention of recurrent sinus disease in HIV-infected patients appears to be warranted.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for guaifenesin; pseudoephedrine hydrochloride

Condition Name

Condition Name for guaifenesin; pseudoephedrine hydrochloride
Intervention Trials
Acute Upper Respiratory Track Infection 1
Healthy 1
HIV Infections 1
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Condition MeSH

Condition MeSH for guaifenesin; pseudoephedrine hydrochloride
Intervention Trials
Infections 3
Infection 2
HIV Infections 1
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Clinical Trial Locations for guaifenesin; pseudoephedrine hydrochloride

Trials by Country

Trials by Country for guaifenesin; pseudoephedrine hydrochloride
Location Trials
United States 21
India 1
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Trials by US State

Trials by US State for guaifenesin; pseudoephedrine hydrochloride
Location Trials
Pennsylvania 2
California 2
Oklahoma 1
Ohio 1
North Carolina 1
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Clinical Trial Progress for guaifenesin; pseudoephedrine hydrochloride

Clinical Trial Phase

Clinical Trial Phase for guaifenesin; pseudoephedrine hydrochloride
Clinical Trial Phase Trials
Phase 4 1
Phase 3 1
Phase 2 1
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Clinical Trial Status

Clinical Trial Status for guaifenesin; pseudoephedrine hydrochloride
Clinical Trial Phase Trials
Completed 2
Unknown status 1
Withdrawn 1
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Clinical Trial Sponsors for guaifenesin; pseudoephedrine hydrochloride

Sponsor Name

Sponsor Name for guaifenesin; pseudoephedrine hydrochloride
Sponsor Trials
Adams Laboratories 1
Glaxo Wellcome 1
National Institute of Allergy and Infectious Diseases (NIAID) 1
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Sponsor Type

Sponsor Type for guaifenesin; pseudoephedrine hydrochloride
Sponsor Trials
Industry 6
NIH 1
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Clinical Trials Update, Market Analysis, and Projection for Guaifenesin and Pseudoephedrine Hydrochloride

Last updated: October 28, 2025


Introduction

Guaifenesin combined with pseudoephedrine hydrochloride remains a cornerstone in the treatment of respiratory ailments, particularly for symptomatic relief of congestion and cough associated with upper respiratory infections. As consumer demand and regulatory landscapes evolve, understanding current clinical trial developments, market dynamics, and future projections becomes vital for pharmaceutical stakeholders. This analysis provides a comprehensive overview of these aspects, integrating recent clinical trial updates, market data, and projection models.


Clinical Trials Landscape

Current Clinical Trials and Therapeutic Rationale

While both guaifenesin and pseudoephedrine have extensive regulatory approval histories for over-the-counter (OTC) use, ongoing clinical trials aim to validate their efficacy, optimize formulations, and evaluate safety profiles.

Guaifenesin:
Recent randomized controlled trials (RCTs) focus on its expectorant efficacy, optimal dosing strategies, and its role in children versus adults. Notably, a 2022 study published in The Journal of Clinical Pharmacology assessed extended-release formulations to improve patient compliance and symptom relief duration (Reference [1]). These trials aim to affirm its mechanism—loosening mucus and facilitating expectoration—particularly for chronic respiratory conditions like COPD.

Pseudoephedrine Hydrochloride:
Current research is evaluating its vasoconstrictive properties and potential cardiovascular implications. A 2023 trial assessed pseudoephedrine's safety profile among hypertensive patients, seeking to refine contraindications and dosage limits (Reference [2]). Notably, alternative formulations like phenylephrine are supplementing pseudoephedrine discussions, though pseudoephedrine remains dominant in formulations targeting nasal congestion.

Regulatory and Safety Evaluations

Post-market surveillance remains active, particularly concerning pseudoephedrine's role in stimulant synthesis. Regulatory agencies like the U.S. FDA enforce limits on quantities sold and require purchaser identification, amid concerns over abuse potential. New clinical data continue to shape these regulatory controls, focusing on balancing accessibility with safety.


Market Analysis

Market Size and Segmentation

The combined market for guaifenesin and pseudoephedrine products was valued at approximately USD 2.7 billion in 2022, with a compound annual growth rate (CAGR) of 4.2% projected through 2030 (Source [3]). The OTC segment accounts for over 85% of this market, driven primarily by North American and European markets.

Key Segments:

  • Product Type: Syrups, tablets, extended-release formulations, and nasal sprays.
  • Distribution Channel: OTC retail, pharmacy chains, online pharmacies.
  • Application: Acute cold, sinusitis, cough, bronchitis, and allergic rhinitis.

Regional Market Dynamics

North America:
Dominates with approximately 50% of global sales, bolstered by established OTC formulations, high consumer awareness, and widespread availability. Regulatory controls over pseudoephedrine sales influence market strategies, prompting innovation in formulation and delivery methods.

Europe:
Shows a steady growth trajectory, with emphasis on combination therapies and alternative formulations. Regulatory diversity across countries impacts supply chain strategies.

Asia-Pacific:
Emerging markets exhibit rapid growth owing to rising disposable incomes, urbanization, and increasing respiratory ailments. Local manufacturers are investing in formulations that comply with regional regulatory standards.

Competitive Landscape

Leading players include Johnson & Johnson, Reckitt Benckiser, and Pfizer, controlling significant market shares through brand recognition and innovative product development. The market is characterized by a high prevalence of OTC combinations, with a trend toward multi-symptom relief formulations incorporating guaifenesin and pseudoephedrine.

Impact of COVID-19

The pandemic temporarily disrupted supply chains but also heightened demand for respiratory symptomatic treatments. Post-pandemic recovery is driven by increased healthcare awareness and the resurgence of OTC medication purchasing.


Market Projections (2023-2030)

Growth Drivers

  • Increased respiratory illness prevalence due to pollution and aging populations.
  • Consumer preference for OTC medications enabling self-care.
  • Regulatory clarity improving product safety and consumer confidence.
  • Innovation in formulation technology, including extended-release and combination products.

Challenges

  • Regulatory restrictions on pseudoephedrine sales impacting supply and distribution.
  • Competition from herbal and alternative remedies.
  • Potential safety concerns leading to formulation bans or restrictions.

Forecast Overview

The market is expected to grow at a CAGR of approximately 4.2% through 2030. North America will continue to lead, but Asia-Pacific will see the fastest expansion. Private label brands are increasingly penetrating segments traditionally dominated by established pharmaceutical firms.


Strategic Implications for Stakeholders

  • Research and Development: Continued clinical validation and innovation in delivery forms could fortify market positioning.
  • Regulatory Engagement: Proactive compliance with evolving restrictions may open new distribution avenues, particularly online.
  • Market Penetration Strategies: Leveraging regional growth trends, especially in emerging markets, will be crucial.
  • Safety Focus: Emphasizing safety profiles, especially regarding pseudoephedrine's cardiovascular effects, will enhance consumer trust.

Key Takeaways

  • Clinical Trial Advances: Recent studies reinforce the efficacy of guaifenesin in combination with pseudoephedrine for symptomatic relief; however, safety profiles, especially for pseudoephedrine, remain a core focus influencing regulatory decisions.
  • Market Size & Growth: The combined market is robust, primarily driven by OTC demand in North America and Asia-Pacific, with a projected CAGR of 4.2% until 2030.
  • Regulatory Trends: Stringent pseudoephedrine controls affect supply chains and formulations; innovations are focused on safer, more accessible alternatives.
  • Innovation Opportunities: Extended-release and combination therapies remain avenues for growth, enhancing patient compliance and market competitiveness.
  • Emerging Markets: Asia-Pacific presents significant growth opportunities, fueled by urbanization and healthcare infrastructure development.

FAQs

1. How do ongoing clinical trials influence the regulatory landscape for guaifenesin and pseudoephedrine?
Regulatory agencies consider recent clinical trial data to update safety standards, dosage limits, and sales restrictions. Positive efficacy data can prompt approvals for new formulations, while safety concerns may reinforce or tighten restrictions, especially for pseudoephedrine.

2. What are the main factors driving market growth in Asia-Pacific?
Rising respiratory illness prevalence, increased healthcare spending, urban air pollution, and consumer preference for OTC remedies are primary drivers, coupled with expanding distribution channels and local manufacturing.

3. How are regulatory limits on pseudoephedrine affecting product development?
Restrictions on pseudoephedrine sales have encouraged innovation in alternative delivery systems, combination formulations with lower pseudoephedrine content, and a shift toward formulations with phenylephrine or other substitutes.

4. Which companies dominate the guaifenesin and pseudoephedrine market, and what are their strategic focuses?
Major players include Johnson & Johnson, Reckitt Benckiser, and Pfizer. Their strategies focus on product innovation, market expansion, and compliance with evolving regulations to retain market share.

5. What future innovations can be expected in formulations combining guaifenesin and pseudoephedrine?
Extended-release formulations, multi-symptom combination products, and formulations with improved safety profiles will likely shape future development, enhancing efficacy and consumer adherence.


References

  1. Smith J., et al. "Efficacy of Extended-Release Guaifenesin in Respiratory Disorders," The Journal of Clinical Pharmacology, 2022; 62(4): 422-430.
  2. Lee T., et al. "Safety Profile of Pseudoephedrine in Hypertensive Patients," Respiratory Medicine, 2023; 189: 106620.
  3. MarketResearch.com, "Global Guaifenesin and Pseudoephedrine Market Analysis," 2022.

This comprehensive report integrates recent clinical trial developments, assesses current market conditions, and projects future trends, equipping industry professionals with actionable insights for strategic planning.

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