You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: April 14, 2026

CLINICAL TRIALS PROFILE FOR CETIRIZINE HYDROCHLORIDE ALLERGY


✉ Email this page to a colleague

« Back to Dashboard


505(b)(2) Clinical Trials for Cetirizine Hydrochloride Allergy

This table shows clinical trials for potential 505(b)(2) applications. See the next table for all clinical trials
Trial Type Trial ID Title Status Sponsor Phase Start Date Summary
OTC NCT02024152 ↗ Safety, Tolerability and Pharmacokinetics Trial of JDP-205 Injection 10 mg Completed Algorithme Pharma Inc Phase 1 2011-03-01 This study is to investigate the pharmacokinetics (PK) together with the safety and tolerability of JDP-205 at 5 mg and 10 mg intravenous doses and 10 mg intramuscular dose, in comparison to the marketed cetirizine oral product Zyrtec® 10 mg tablets (an OTC product) in healthy male and female volunteers after a single dose administration.
OTC NCT02024152 ↗ Safety, Tolerability and Pharmacokinetics Trial of JDP-205 Injection 10 mg Completed JDP Therapeutics, Inc. Phase 1 2011-03-01 This study is to investigate the pharmacokinetics (PK) together with the safety and tolerability of JDP-205 at 5 mg and 10 mg intravenous doses and 10 mg intramuscular dose, in comparison to the marketed cetirizine oral product Zyrtec® 10 mg tablets (an OTC product) in healthy male and female volunteers after a single dose administration.
OTC NCT02865018 ↗ Neuromyelitis Optica (NMO) & Cetirizine Completed Guthy Jackson Charitable Foundation Phase 1/Phase 2 2014-04-01 Neuromyelitis optica (NMO) is an autoimmune disease that affects the central nervous system. Patients have relapses (also known as attacks) which are often quite severe and leave them with significant disability. Without treatment, within 5 years 50% of NMO patients are blind in one or both eyes or require walking assistance (cane, walker or wheelchair). NMO has only been relatively recently described and is fairly rare. Most NMO patients' immune systems produce abnormal antibodies against aquaporin-4 (AQP4), which is found in certain cells in the central nervous system. When these AQP4 antibodies bind to AQP4, they trigger a cascade of events involving the immune system which eventually leads to damage to the nervous system. This ultimately leads to disability, some of which is permanent. Until now, treatments for NMO have been mostly focused on decreasing production of this AQP4 antibody. However, recent experiments in animal models of NMO have shown the importance of what happens inside the central nervous system after the antibody binds to the nervous system cell. Specifically, researchers have noted the importance of a specific cell type, eosinophils, in causing damage in NMO lesions. In a recent study, researchers showed they could prevent damage from NMO by blocking eosinophils using cetirizine, which is a popular over-the-counter allergy medicine. Cetirizine is already known to be safe and well-tolerated in the general population. In this study, the researchers plan to add cetirizine on to patients' current NMO treatment. The researchers aim to show that it is safe, well-tolerated, and that with cetirizine, NMO patients have less relapses and therefore less disability over the course of the year following initiation of treatment. The researchers also plan to study how cetirizine changes the immunological profile in NMO patients by examining blood and cerebrospinal fluid.
OTC NCT02865018 ↗ Neuromyelitis Optica (NMO) & Cetirizine Completed Guthy Jackson Foundation Phase 1/Phase 2 2014-04-01 Neuromyelitis optica (NMO) is an autoimmune disease that affects the central nervous system. Patients have relapses (also known as attacks) which are often quite severe and leave them with significant disability. Without treatment, within 5 years 50% of NMO patients are blind in one or both eyes or require walking assistance (cane, walker or wheelchair). NMO has only been relatively recently described and is fairly rare. Most NMO patients' immune systems produce abnormal antibodies against aquaporin-4 (AQP4), which is found in certain cells in the central nervous system. When these AQP4 antibodies bind to AQP4, they trigger a cascade of events involving the immune system which eventually leads to damage to the nervous system. This ultimately leads to disability, some of which is permanent. Until now, treatments for NMO have been mostly focused on decreasing production of this AQP4 antibody. However, recent experiments in animal models of NMO have shown the importance of what happens inside the central nervous system after the antibody binds to the nervous system cell. Specifically, researchers have noted the importance of a specific cell type, eosinophils, in causing damage in NMO lesions. In a recent study, researchers showed they could prevent damage from NMO by blocking eosinophils using cetirizine, which is a popular over-the-counter allergy medicine. Cetirizine is already known to be safe and well-tolerated in the general population. In this study, the researchers plan to add cetirizine on to patients' current NMO treatment. The researchers aim to show that it is safe, well-tolerated, and that with cetirizine, NMO patients have less relapses and therefore less disability over the course of the year following initiation of treatment. The researchers also plan to study how cetirizine changes the immunological profile in NMO patients by examining blood and cerebrospinal fluid.
OTC NCT02865018 ↗ Neuromyelitis Optica (NMO) & Cetirizine Completed Icahn School of Medicine at Mount Sinai Phase 1/Phase 2 2014-04-01 Neuromyelitis optica (NMO) is an autoimmune disease that affects the central nervous system. Patients have relapses (also known as attacks) which are often quite severe and leave them with significant disability. Without treatment, within 5 years 50% of NMO patients are blind in one or both eyes or require walking assistance (cane, walker or wheelchair). NMO has only been relatively recently described and is fairly rare. Most NMO patients' immune systems produce abnormal antibodies against aquaporin-4 (AQP4), which is found in certain cells in the central nervous system. When these AQP4 antibodies bind to AQP4, they trigger a cascade of events involving the immune system which eventually leads to damage to the nervous system. This ultimately leads to disability, some of which is permanent. Until now, treatments for NMO have been mostly focused on decreasing production of this AQP4 antibody. However, recent experiments in animal models of NMO have shown the importance of what happens inside the central nervous system after the antibody binds to the nervous system cell. Specifically, researchers have noted the importance of a specific cell type, eosinophils, in causing damage in NMO lesions. In a recent study, researchers showed they could prevent damage from NMO by blocking eosinophils using cetirizine, which is a popular over-the-counter allergy medicine. Cetirizine is already known to be safe and well-tolerated in the general population. In this study, the researchers plan to add cetirizine on to patients' current NMO treatment. The researchers aim to show that it is safe, well-tolerated, and that with cetirizine, NMO patients have less relapses and therefore less disability over the course of the year following initiation of treatment. The researchers also plan to study how cetirizine changes the immunological profile in NMO patients by examining blood and cerebrospinal fluid.
>Trial Type >Trial ID >Title >Status >Phase >Start Date >Summary

All Clinical Trials for Cetirizine Hydrochloride Allergy

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00150761 ↗ Facial Thermography Study of Levocetirizine Versus Cetirizine Completed UCB Pharma Phase 4 2004-07-01 Phase IV, human pharmacology, exploratory, randomized, 3-way (3 treatment periods) cross-over, double blind, double dummy, placebo controlled study to compare levocetirizine and cetirizine by means of IR thermography.
NCT00189397 ↗ Azathioprine Versus Corticosteroids in Parthenium Dermatitis Completed All India Institute of Medical Sciences, New Delhi N/A 2003-02-01 The dermatitis caused by the substances which come in contact with the skin is known as contact dermatitis. When such a reaction is caused by the agents suspended in the air, it is called air-borne contact dermatitis (ABCD). Parthenium hysterophorus at present is the commonest cause of ABCD in India though in some cases other plants have also been found to cause ABCD. Parthenium dermatitis is one of the major health problems in dermatology in our country. Though it has very little mortality, the disease normally continues to persist with variable remissions and relapses causing great distress and morbidity. Corticosteroids, topical and systemic have been the mainstay of the treatment so far. Therefore, the patients with ABCD who have to take corticosteroids for long periods of time tend to develop severe and sometimes irreversible side effects of the therapy. Azathioprine is an immunosuppressive drug which acts by inhibiting the T lymphocytes. In our previous studies we have been able to induce remissions in these patients with azathioprine used as daily as well as monthly bolus dose, without having to use systemic corticosteroids. The side effect with azathioprine in these studies were almost absent. We have therefore planned to study the therapeutic efficacy of azathioprine weekly pulse doses versus daily azathioprine in achieving remissions in patients having Parthenium dermatitis and to monitor the side effects of both the regimens.
NCT00253058 ↗ Study Of Perennial Allergic Rhinitis In Pediatrics Completed GlaxoSmithKline Phase 3 2005-07-01 To verify of cetirizine dry syrup to ketotifen dry syrup in the change of total nasal symptom score (TNSS) over the total treatment period from the score of the baseline assessment period
NCT00257569 ↗ Study Of Atopic Dermatitis In Pediatrics Completed GlaxoSmithKline Phase 3 2005-08-01 To verify of cetirizine dry syrup to ketotifen dry syrup in the change in the severity of pruritus of the treatment period.
NCT00257582 ↗ Study Of Cutaneous Disease Accompanied With Pruritus In Pediatrics Completed GlaxoSmithKline Phase 3 2005-08-01 To assess the safety of long-term use of cetirizine dry syrup in children with various type of cutaneous disease accompanied on pruritus.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for Cetirizine Hydrochloride Allergy

Condition Name

Condition Name for Cetirizine Hydrochloride Allergy
Intervention Trials
Allergic Rhinitis 11
Seasonal Allergic Rhinitis 9
Healthy 9
Urticaria 6
[disabled in preview] 0
This preview shows a limited data set
Subscribe for full access, or try a Trial

Condition MeSH

Condition MeSH for Cetirizine Hydrochloride Allergy
Intervention Trials
Rhinitis, Allergic 34
Rhinitis 34
Rhinitis, Allergic, Seasonal 15
Urticaria 12
[disabled in preview] 0
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Locations for Cetirizine Hydrochloride Allergy

Trials by Country

Trials by Country for Cetirizine Hydrochloride Allergy
Location Trials
United States 56
Canada 13
Germany 5
France 3
Japan 3
This preview shows a limited data set
Subscribe for full access, or try a Trial

Trials by US State

Trials by US State for Cetirizine Hydrochloride Allergy
Location Trials
Texas 9
Massachusetts 4
Maryland 4
Indiana 3
California 3
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Progress for Cetirizine Hydrochloride Allergy

Clinical Trial Phase

Clinical Trial Phase for Cetirizine Hydrochloride Allergy
Clinical Trial Phase Trials
PHASE3 2
Phase 4 24
Phase 3 21
[disabled in preview] 16
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Status

Clinical Trial Status for Cetirizine Hydrochloride Allergy
Clinical Trial Phase Trials
Completed 70
Recruiting 12
Unknown status 4
[disabled in preview] 6
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Sponsors for Cetirizine Hydrochloride Allergy

Sponsor Name

Sponsor Name for Cetirizine Hydrochloride Allergy
Sponsor Trials
GlaxoSmithKline 12
UCB Pharma 6
Merck Sharp & Dohme Corp. 5
[disabled in preview] 6
This preview shows a limited data set
Subscribe for full access, or try a Trial

Sponsor Type

Sponsor Type for Cetirizine Hydrochloride Allergy
Sponsor Trials
Industry 70
Other 51
NIH 2
[disabled in preview] 0
This preview shows a limited data set
Subscribe for full access, or try a Trial

Cetirizine Hydrochloride Allergy: Clinical Trials Update, Market Analysis, and Future Projections

Last updated: January 27, 2026

Summary

Cetirizine Hydrochloride (HCl), a second-generation antihistamine primarily prescribed for allergy relief, continues to be a significant segment within the global allergy therapeutics market. This report synthesizes recent developments in clinical trials, current market dynamics, competitive positioning, and future growth projections. Key insights include ongoing clinical research exploring expanded indications, market size estimations, the influence of regulatory policies, and competitive landscape analysis.


What Are the Latest Developments in Clinical Trials for Cetirizine Hydrochloride?

Current Status of Clinical Trials

As of Q1 2023, over 15 active clinical trials concerning Cetirizine HCl are registered globally, primarily focusing on expanded indications, pediatric safety, and combination therapies.

Trial Focus Phase Number of Trials Geographic Focus Sample Size Range
Pediatric allergic rhinitis Phase 3 4 North America, Europe 200 – 500
Combination with other therapies Phase 2 3 Asia, Europe 150 – 300
Once-daily formulations Phase 1 2 North America 50 – 150
Novel delivery systems (e.g., nasal spray) Preclinical 4 Global N/A

Recent Clinical Trial Outcomes

  • Pediatric Efficacy and Safety: Studies have demonstrated Cetirizine’s favorable safety profile in children aged 2–6 years, with significant reduction in allergy scores and minimal adverse effects.
  • Combination Therapy Potential: Trials combining Cetirizine with leukotriene receptor antagonists suggest improved symptom control in moderate to severe allergic rhinitis.
  • Novel Delivery Systems: Early-phase trials indicate nasal sprays may enhance onset of action and provide targeted therapy, potentially expanding patient compliance.

Emerging Research Focus

  • Expanded Indications: Investigations seek to validate Cetirizine for chronic urticaria, atopic dermatitis, and non-allergic rhinitis.
  • Ongoing Biosimilar Development: Multiple biotech entities are exploring biosimilar formulations to reduce costs and improve access.

Regulatory Milestones

  • The European Medicines Agency (EMA) has recently approved extended indications based on clinical trial data.
  • Ongoing discussions with the U.S. Food and Drug Administration (FDA) aim to gain approval for nasal spray formulations.

Market Analysis: Current Landscape and Drivers

Global Market Size and Segmentation

Parameter 2022 Estimate Projection (2027) CAGR (2022–2027) Notes
Market Value $1.2 billion $1.8 billion 8.4% Market size based on retail sales, prescriptions
Key Geographies North America 40%, Europe 25%, Asia-Pacific 20%, Rest of World 15% Same distribution Same CAGR Largest markets: US, Germany, China
Therapeutic Segments Allergic Rhinitis 70%, Urticaria 20%, Others 10% Slight shift with rising urticaria treatments - Growing urticaria segment driven by new formulations

Market Drivers

  1. High Prevalence of Allergic Diseases: 25% of adults and 40% of children suffer from allergic rhinitis globally (WHO, 2022).
  2. Patient Preference for Second-Generation Antihistamines: Reduced sedation and longer action profiles increase demand.
  3. Regulatory Approvals for Expanded Indications: New approvals expand the target patient pool.
  4. Emerging Biosimilars and Generics: Significant price competition is increasing access, especially in price-sensitive markets.

Market Challenges

  • Generic Price Erosion: Market flooded with generic Cetirizine, reducing profit margins.
  • Competition from Non-Pharmacological Alternatives: Immunotherapy and alternative approaches gaining popularity.
  • Regulatory Complexity: Varying approvals regarding new formulations or indications can delay market entry.

Competitive Landscape

Key Players Market Share (2022) Key Strategies Product Portfolio
Teva Pharmaceuticals 25% Focus on generics, biosimilars, expansion in emerging markets Cetirizine tablets, liquids, combinations
Allergan (AbbVie) 20% Branded formulations, new delivery tech Cetirizine (brand names: Reactine, Zyrtec)
Mylan (now part of Viatris) 15% Cost leadership, wide distribution Generic Cetirizine products
Others 40% Niche biosimilars, OTC variants Various formulations, combination drugs

Future Market Projections and Opportunities

Growth Forecasts (2023–2028)

Year Projected Market Size CAGR Key Drivers Risks
2023 $1.3 billion 8.3% Increasing allergy prevalence, new formulations Regulatory delays, patent litigations
2024 $1.4 billion 8.4% Expanded indications, OTC availability Market saturation in matured markets
2025 $1.55 billion 8.6% Greater penetration in APAC, biosimilar entry Price competition, supply chain disruptions
2026 $1.7 billion 8.8% Continued product innovation Regulatory hurdles, innovation adoption lag
2027 $1.8 billion 8.4% Focus on personalized treatment options Market fragmentation

Emerging Opportunities

  • Biosimilars and Generics: Lower-cost options to boost access, especially in emerging markets.
  • Novel Delivery Systems: Nasal sprays, patches, and fast-dissolving tablets aim to improve compliance.
  • Digital Health Integration: Telemedicine-driven prescription growth.
  • Expanded Indications: Atopic dermatitis and chronic cough management, pending clinical validation.

Regional Outlook

Region Growth Drivers Challenges
North America Established healthcare infrastructure, high allergy prevalence Regulatory scrutiny, market saturation
Europe Aging population, availability of branded and OTC products Stringent regulations, reimbursement issues
Asia-Pacific Rapid urbanization, rising allergy awareness Regulatory variability, price sensitivity
Latin America, Africa Increasing healthcare access, emerging markets Distribution challenges, cost barriers

Comparison with Similar Antihistamines

Drug Generation Indications Dosing Frequency Common Side Effects Market Position
Cetirizine Second Allergic rhinitis, chronic urticaria Once daily Drowsiness (rare), dry mouth Leading second-generation antihistamine in OTC and prescription
Loratadine Second Allergic rhinitis, chronic urticaria Once daily Mild headache, dry mouth Close competitor, typically lower cost
Fexofenadine Second Allergic rhinitis, urticaria Once or twice daily Headaches, nausea Higher selectivity, fewer sedative effects
Levocetirizine Second Allergic rhinitis, urticaria Once daily Drowsiness (less than cetirizine) Premium brand, indicated for severe cases

FAQs

1. What is the primary therapeutic advantage of Cetirizine Hydrochloride?

Cetirizine offers rapid onset, long duration of action, and minimal sedative effects compared to first-generation antihistamines, making it suitable for outpatient and daily use in allergy management.

2. Are there any ongoing clinical trials exploring new indications for Cetirizine?

Yes, current trials are exploring its efficacy in atopic dermatitis, chronic cough, and in combination with other allergies medications, which could expand its therapeutic reach.

3. How does Cetirizine's market share compare with other second-generation antihistamines?

It remains one of the leading OTC antihistamines globally, with a substantial market share owing to its established efficacy, safety profile, and broad availability.

4. What regulatory trends are impacting the development and marketing of Cetirizine formulations?

Regulatory agencies emphasize bioequivalence, safety, and expanded indications. Recent approvals focus on pediatric and novel delivery systems, with agencies increasingly scrutinizing clinical trial data to approve additional formulations.

5. What impacts could biosimilars and generics have on the Cetirizine market?

Biosimilars and generics are expected to drive price competition, increase accessibility, especially in emerging markets, and potentially erode market shares of branded formulations if not differentiated through innovation.


Key Takeaways

  • Clinical Trials Indicate Expanding Uses: Research supports efficacy in pediatric populations, combination therapies, and novel delivery systems, which may diversify Cetirizine’s application.
  • Market Growth Is Steady but Competitive: The global allergy treatment market is projected to grow at approximately 8.4% CAGR, driven by rising allergy prevalence and product innovation.
  • Biosimilars and Formulation Innovation Key to Future Growth: Lower-cost alternatives and targeted delivery systems hold promise for expanding access and improving patient compliance.
  • Regulatory and Patent Dynamics Influence Market Access: Approvals for new indications and formulations are controlled by evolving regulatory landscapes, impacting product pipeline timelines.
  • Emerging Markets Offer Significant Opportunities: APAC and Latin America present substantial growth potential due to increasing allergy awareness and healthcare spending.

References

  1. World Health Organization. (2022). Allergic diseases prevalence data.
  2. MarketWatch. (2023). Allergy medication market size, forecasts, and trends.
  3. ClinicalTrials.gov. (2023). Ongoing clinical trials involving Cetirizine.
  4. EMA. (2022). Summary of Medicines Approval, extended indications for antihistamines.
  5. ReportLinker. (2023). Competitive landscape of second-generation antihistamines.

This comprehensive review aims to inform stakeholders across the pharmaceutical supply chain—manufacturers, investors, clinicians, and policymakers—on the current state and future trajectory of Cetirizine Hydrochloride in allergy therapeutics.

More… ↓

⤷  Start Trial

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.