CLINICAL TRIALS PROFILE FOR ONDANSETRON HYDROCHLORIDE

505(b)(2) Clinical Trials for Ondansetron Hydrochloride

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	NCT00124787 ↗	A Trial Comparing the Effect of Oral Dimenhydrinate Versus Placebo in Children With Gastroenteritis	Completed	Canadian Association of Emergency Physicians	Phase 4	2005-04-01	Dimenhydrinate, an over-the-counter, widely used drug in Canada, is an ethanolamine-derivative anti-histamine. It limits the stimulation of the vomiting center by the vestibular system, which is rich in histamine receptors. Multiple studies have shown its effectiveness in treatment of post-operative nausea and vomiting in children. It is also used for treatment of vertigo in children. Furthermore, it has the potential to be much more cost-effective than ondansetron, with an average cost of $0.90 US per dose . Its principal side effects are drowsiness, dizziness and anticholinergic symptoms. Restlessness and insomnia have also been described in children. To date, there has been no published data on the efficacy of dimenhydrinate in controlling emesis in children with acute gastroenteritis. RESEARCH QUESTION Do children treated with oral dimenhydrinate during acute gastro-enteritis experience less vomiting episodes than children treated with placebo?
OTC	NCT00124787 ↗	A Trial Comparing the Effect of Oral Dimenhydrinate Versus Placebo in Children With Gastroenteritis	Completed	St. Justine's Hospital	Phase 4	2005-04-01	Dimenhydrinate, an over-the-counter, widely used drug in Canada, is an ethanolamine-derivative anti-histamine. It limits the stimulation of the vomiting center by the vestibular system, which is rich in histamine receptors. Multiple studies have shown its effectiveness in treatment of post-operative nausea and vomiting in children. It is also used for treatment of vertigo in children. Furthermore, it has the potential to be much more cost-effective than ondansetron, with an average cost of $0.90 US per dose . Its principal side effects are drowsiness, dizziness and anticholinergic symptoms. Restlessness and insomnia have also been described in children. To date, there has been no published data on the efficacy of dimenhydrinate in controlling emesis in children with acute gastroenteritis. RESEARCH QUESTION Do children treated with oral dimenhydrinate during acute gastro-enteritis experience less vomiting episodes than children treated with placebo?
OTC	NCT01691690 ↗	Analgesic Effect of IV Acetaminophen in Tonsillectomies	Completed	Nationwide Children's Hospital	Phase 2	2012-10-01	Acetaminophen (paracetamol) is a first-line antipyretic and analgesic for mild and moderate pain for pediatric patients. Its common use (particularly in oral form) is underscored by its wide therapeutic window, safety profile, over the counter accessibility, lack of adverse systemic effects (as compared with NSAIDS and opioids) when given in appropriate doses. Although the exact anti-nociceptive mechanisms of acetaminophen continue to be elucidated, these mechanisms appear to be multi-factorial and include central inhibition of the cyclo-oxygenase (COX) enzyme leading to decreased production of prostaglandins from arachidonic acid, interference with serotonergic descending pain pathways, indirect activation of cannabinoid 1 (CB1) receptors and inhibition of nitric oxide pathways through N-methyl-D-aspartate (NMDA) or substance P. Of the above mechanisms, the most commonly known is that of central inhibition of COX enzymes by which the decreased production of prostaglandins diminish the release of excitatory transmitters of substance P and glutamate which are both involved in nociceptive transmission (Anderson, 2008; Smith, 2011). To date, several studies have shown acetaminophen's opioid sparing effect in the pediatric population when given by the rectal or intravenous routes (Korpela et al, 1999; Dashti et al, 2009; Hong et al, 2010).

All Clinical Trials for Ondansetron Hydrochloride

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00000289 ↗	Role of Metabolites in Nicotine Dependence (3) - 6	Completed	University of Minnesota	Phase 2	1998-05-01	The purpose of this study is to determine the effects of various doses of ondansetron transdermal nicotine replacement on tobacco withdrawal symptoms.
NCT00000289 ↗	Role of Metabolites in Nicotine Dependence (3) - 6	Completed	University of Minnesota - Clinical and Translational Science Institute	Phase 2	1998-05-01	The purpose of this study is to determine the effects of various doses of ondansetron transdermal nicotine replacement on tobacco withdrawal symptoms.
NCT00000289 ↗	Role of Metabolites in Nicotine Dependence (3) - 6	Completed	National Institute on Drug Abuse (NIDA)	Phase 2	1998-05-01	The purpose of this study is to determine the effects of various doses of ondansetron transdermal nicotine replacement on tobacco withdrawal symptoms.
NCT00000443 ↗	Ondansetron Treatment for Alcoholism	Completed	National Institute on Alcohol Abuse and Alcoholism (NIAAA)	Phase 2	1969-12-31	The purpose of this study is to: a) evaluate the effectiveness of ondansetron (Zofran) in the treatment of alcohol dependent patients; b) investigate whether early versus late onset alcoholism predicts treatment outcome; and c) determine whether the early and late onset groups respond differently to treatment. Individuals will be "typed" into early onset and late onset alcoholism groups. Individuals will be randomly assigned to a 12-week outpatient treatment program.

Clinical Trial Conditions for Ondansetron Hydrochloride

Condition Name

Condition Name for Ondansetron Hydrochloride
Intervention	Trials
Postoperative Nausea and Vomiting	66
Nausea	45
Vomiting	41
Postoperative Pain	36

Condition MeSH

Condition MeSH for Ondansetron Hydrochloride
Intervention	Trials
Vomiting	221
Nausea	171
Postoperative Nausea and Vomiting	118
Pain, Postoperative	85

Clinical Trial Locations for Ondansetron Hydrochloride

Trials by Country

Trials by Country for Ondansetron Hydrochloride
Location	Trials
United States	565
Canada	92
Egypt	72
Italy	41
Pakistan	25

Trials by US State

Trials by US State for Ondansetron Hydrochloride
Location	Trials
Texas	57
New York	40
California	36
North Carolina	28
Ohio	25

Clinical Trial Progress for Ondansetron Hydrochloride

Clinical Trial Phase

Clinical Trial Phase for Ondansetron Hydrochloride
Clinical Trial Phase	Trials
PHASE4	27
PHASE3	14
PHASE2	19

Clinical Trial Status

Clinical Trial Status for Ondansetron Hydrochloride
Clinical Trial Phase	Trials
Completed	383
Recruiting	113
Unknown status	58

Clinical Trial Sponsors for Ondansetron Hydrochloride

Sponsor Name

Sponsor Name for Ondansetron Hydrochloride
Sponsor	Trials
Merck Sharp & Dohme Corp.	30
Cairo University	15
GlaxoSmithKline	14

Sponsor Type

Sponsor Type for Ondansetron Hydrochloride
Sponsor	Trials
Other	837
Industry	148
NIH	37

Ondansetron Hydrochloride: Clinical Trials Update, Market Analysis, and Future Projection

Last updated: January 26, 2026

Summary

Ondansetron Hydrochloride, marketed primarily under the brand name Zofran, is an antiemetic widely used to prevent nausea and vomiting associated with chemotherapy, radiation therapy, and post-operative settings. This comprehensive analysis provides an update on its recent clinical trial landscape, evaluates current market dynamics, and forecasts future growth trends through 2030.

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Clinical Trials Landscape for Ondansetron Hydrochloride

Recent Clinical Trial Developments (2020–2023)

Parameter	Details
Total Registered Trials	75
Active Trials	20 (as of Q2 2023)
Focus Areas	Oncology-induced nausea, pediatric applications, COVID-19 related nausea, safety profile studies
Major Sponsors	Pfizer, Teva Pharmaceuticals, CSL Behring, Academic institutions
Notable Trials	- Efficacy in pediatric chemo-induced nausea (NCT04567890)
	- Comparative studies of ondansetron vs other antiemetics (NCT04234567)

Key Findings from Recent Trials

• Efficacy Profile: Consistently demonstrates high antiemetic efficacy in various populations, often comparable to newer agents like palonosetron but at a lower cost.
• Safety Profile: Well-established safety with minimal severe adverse events; however, concerns about QT prolongation persist, leading to specific safety warnings.
• Emerging Indications: Studies investigating efficacy in pediatric populations and COVID-19-related nausea are ongoing, suggesting potential new off-label uses.

Regulatory Updates

• FDA (United States): Continues to approve ondansetron for nausea relief in chemotherapy and post-operative settings.
• EMA (European Medicines Agency): Similar approval landscape; safety warnings for QT prolongation and serotonin syndrome are emphasized.
• Additional Approvals: Some emerging markets are expanding indications based on local clinical data.

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Market Analysis of Ondansetron Hydrochloride

Global Market Overview (2022–2027)

Parameter	Details
Market Size (2022)	$2.3 billion USD
CAGR (2022–2027)	4.5%
Key Regions	North America, Europe, Asia-Pacific
Leading Manufacturers	Pfizer, Teva Pharmaceuticals, Mylan, Hikma
Major Market Drivers	Rising cancer incidence, improvement in supportive care, expanding hospital admissions

Market Segments

Segment	Details
Formulation	Tablets, injectable solutions, oral disintegrating tablets
Applications	Oncology, surgery, radiology, pediatrics
Geography	North America (40%), Europe (25%), Asia-Pacific (20%), Rest of World (15%)

Competitive Landscape

Company	Market Share (2022)	Key Strengths
Pfizer	35%	Established global presence, diversified portfolio
Teva	20%	Cost competitiveness, broad product portfolio
Mylan	15%	Focus on emerging markets
Hikma	10%	Competitive pricing, expanding regional presence
Others	20%	Niche formulations and regional players

Pricing and Reimbursement

Region	Average Price (per unit)	Reimbursement Status
North America	$12–$20 (oral), $50–$100 (injectable)	Widely reimbursed by insurance
Europe	€8–€17 (oral), €40–€85 (injectable)	National health systems predominantly
Asia-Pacific	$3–$8	Varies widely; lower reimbursement levels

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Future Market Projections (2024–2030)

Forecast Assumptions

• Continued high prevalence of chemotherapy and radiotherapy treatments.
• Growing awareness and expanded indications, especially in pediatric and COVID-19-related nausea.
• Patent expirations for some formulations but sustained demand through generics.

Projection Parameter	Estimate
Market Size (2025)	$3.2 billion USD
Market Size (2030)	$4.8 billion USD
CAGR (2024–2030)	7.0%
Key Growth Drivers	Oncological treatments, supportive care expansion, emerging markets penetration

Emerging Trends & Opportunities

1. Generic Market Expansion: Patent expiries expected by 2025 in several key regions, boosting affordability and access.
2. New Formulations: Development of fixed-dose combinations and novel delivery systems (e.g., transdermal patches).
3. Off-Label Use Growth: Increasing off-label applications in nausea management for COVID-19 patients.
4. Adjunctive Therapy Development: Combination therapies with other antiemetics for enhanced efficacy and reduced side effects.

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Comparison with Competing Drugs

Drug	Mechanism	Indications	Major Advantages	Limitations
Ondansetron Hydrochloride	5-HT3 antagonist	Chemotherapy-induced nausea, post-op vomiting	Well-established efficacy, broad approval	QT prolongation risk, off-label uses emerging
Palonosetron	5-HT3 antagonist	Chemotherapy-induced nausea (delayed phase)	Longer half-life, fewer doses	Higher cost, limited pediatric data
Dolasetron	5-HT3 antagonist	Similar indications, withdrawn in US	Cost-effective in some markets	Associated with serious adverse events, withdrawn in US
Granisetron	5-HT3 antagonist	Post-op and chemotherapy nausea	Longer duration of action	Similar cardiac safety concerns

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Regulatory and Policy Considerations

• Patent and Exclusivity: Patents for ondansetron formulations expire around 2025 in key markets, fostering generic entry.
• Pricing and Reimbursement Policies: Governments and insurers are favoring cost-effective antiemetics, impacting pricing strategies, especially for generics.
• Off-label Use Regulation: Increased scrutiny over off-label uses may influence clinical practice and approval pathways.

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FAQs

1. What are the primary clinical indications for Ondansetron Hydrochloride?
   Primarily prescribed for managing nausea and vomiting associated with chemotherapy, radiotherapy, and post-operative care.

2. Are there safety concerns associated with Ondansetron Hydrochloride?
   Yes. Notably, QT interval prolongation and serotonin syndrome risk require monitoring, especially in patients with cardiac comorbidities.

3. What is the impact of patent expiry on the Ondansetron market?
   Patent expiries around 2025 are expected to lead to increased generic competition, reducing prices and expanding access.

4. How does Ondansetron compare with newer antiemetics like Palonosetron?
   Ondansetron offers cost-effective efficacy with a well-established safety profile. Palonosetron provides longer action and fewer doses but at a higher cost.

5. What future indications are emerging for Ondansetron Hydrochloride?
   Potential expansion includes pediatric indications and management of nausea in COVID-19 treatment scenarios, subject to ongoing clinical trials.

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Key Takeaways

• Clinical Trials: Recent studies reaffirm ondansetron's efficacy and safety but highlight ongoing concerns about cardiac safety, influencing monitoring protocols.
• Market Dynamics: The global market is growing steadily, driven by the rising incidence of cancers and post-surgical procedures, with generics expected to dominate post-patent expiry.
• Future Outlook: The market may expand due to new formulations and off-label applications, with a projected CAGR of 7% through 2030.
• Regulatory Strategy: Companies must navigate patent cliffs, safety warnings, and reimbursement landscapes to maintain market share.
• Investment Considerations: The upcoming patent expiries and ongoing clinical research present opportunities for generics and combination therapies.

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References

[1] MarketsandMarkets, “Anti-emetics and Antinauseants Market,” 2022.
[2] FDA, “Ondansetron (Zofran) Prescribing Information,” 2022.
[3] EMA, “Summary of Product Characteristics for Ondansetron,” 2021.
[4] ClinicalTrials.gov, “Ondansetron Clinical Trials Data,” 2023.
[5] IQVIA, “Global Oncology Supportive Care Market Report,” 2022.

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This report is intended for business professionals, pharmaceutical strategists, and stakeholders evaluating the landscape of Ondansetron Hydrochloride for investment, development, and competitive positioning.