CLINICAL TRIALS PROFILE FOR TAGAMET HB

All Clinical Trials for TAGAMET HB

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00038402 ↗	Evaluation of the Addition of Herceptin to Standard Chemotherapy in the Neoadjuvant Setting for Operable Breast Cancer	Completed	Genentech, Inc.	Phase 3	2001-04-01	The purpose of this study is to evaluate the addition of Herceptin to standard chemotherapy treatment of patients newly diagnosed with operable breast cancer. Other objectives: 1) to evaluate the potential of this therapy to reduce the size of the tumor and increase the possibility of breast conservative surgery, 2) evaluate the ability of this regimen to prevent recurrence of breast cancer and impact on survival, 3) determine side effect profile with the addition of Herceptin, and 4) evaluate significance of HER2 expression by two different methods.
NCT00038402 ↗	Evaluation of the Addition of Herceptin to Standard Chemotherapy in the Neoadjuvant Setting for Operable Breast Cancer	Completed	M.D. Anderson Cancer Center	Phase 3	2001-04-01	The purpose of this study is to evaluate the addition of Herceptin to standard chemotherapy treatment of patients newly diagnosed with operable breast cancer. Other objectives: 1) to evaluate the potential of this therapy to reduce the size of the tumor and increase the possibility of breast conservative surgery, 2) evaluate the ability of this regimen to prevent recurrence of breast cancer and impact on survival, 3) determine side effect profile with the addition of Herceptin, and 4) evaluate significance of HER2 expression by two different methods.
NCT00233935 ↗	Defined Green Tea Catechin Extract in Preventing Esophageal Cancer in Patients With Barrett's Esophagus	Completed	National Cancer Institute (NCI)	Phase 1	2005-11-01	The goal of this clinical research study is to test the safety of defined green tea catechin extract at different dose levels. Researchers also want to find out what effects, good and bad, it may have on individual and their risk for esophagus cancer. Esophagus cancer is an increased risk associated with Barrett's esophagus. Chemoprevention is the use of certain drugs to keep cancer from forming, growing, or coming back. The use of defined green tea catechin extract may prevent esophageal cancer.
NCT01256879 ↗	Cimetidine Biowaivers	Completed	Food and Drug Administration (FDA)	Phase 4	2011-03-01	The purpose of this research is to see if non-drug ingredients in capsules and oral solutions affect how well drugs are absorbed. This is called "bioequivalence." Medications taken by mouth, such as capsules and solutions, need to be absorbed into the body in order to do any good. Capsules and solutions contain a drug, but also contain non-drug ingredients that are called excipients or fillers. Excipients in the capsules and solutions can impact how much drug is absorbed into the body. This is called "bioINequivalence." Capsules and solutions in this research contain the drug cimetidine. This drug is being used since it has high water solubility (can dissolve in water) and low ability to be absorbed.
NCT01256879 ↗	Cimetidine Biowaivers	Completed	University of Maryland	Phase 4	2011-03-01	The purpose of this research is to see if non-drug ingredients in capsules and oral solutions affect how well drugs are absorbed. This is called "bioequivalence." Medications taken by mouth, such as capsules and solutions, need to be absorbed into the body in order to do any good. Capsules and solutions contain a drug, but also contain non-drug ingredients that are called excipients or fillers. Excipients in the capsules and solutions can impact how much drug is absorbed into the body. This is called "bioINequivalence." Capsules and solutions in this research contain the drug cimetidine. This drug is being used since it has high water solubility (can dissolve in water) and low ability to be absorbed.

Clinical Trial Conditions for TAGAMET HB

Condition Name

Condition Name for TAGAMET HB
Intervention	Trials
Anatomic Stage III Breast Cancer AJCC v8	1
Lactation	1
Prognostic Stage IIIC Breast Cancer AJCC v8	1
Anatomic Stage IIIA Breast Cancer AJCC v8	1

Condition MeSH

Condition MeSH for TAGAMET HB
Intervention	Trials
Breast Neoplasms	2
Breast Carcinoma In Situ	1
Ulcer	1
Barrett Esophagus	1

Clinical Trial Locations for TAGAMET HB

Trials by Country

Trials by Country for TAGAMET HB
Location	Trials
United States	7
China	1

Trials by US State

Trials by US State for TAGAMET HB
Location	Trials
Washington	2
Texas	2
Ohio	1
Maryland	1
New York	1

Clinical Trial Progress for TAGAMET HB

Clinical Trial Phase

Clinical Trial Phase for TAGAMET HB
Clinical Trial Phase	Trials
Phase 4	2
Phase 3	2
Phase 2/Phase 3	1

Clinical Trial Status

Clinical Trial Status for TAGAMET HB
Clinical Trial Phase	Trials
Completed	4
Recruiting	3

Clinical Trial Sponsors for TAGAMET HB

Sponsor Name

Sponsor Name for TAGAMET HB
Sponsor	Trials
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)	2
AstraZeneca	1
Ohio State University Comprehensive Cancer Center	1

Sponsor Type

Sponsor Type for TAGAMET HB
Sponsor	Trials
Other	6
NIH	4
Industry	2

Clinical Trials Update, Market Analysis, and Projection for TAGAMET HB (Cimetidine)

Last updated: October 29, 2025

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Introduction

TAGAMET HB, the brand name for cimetidine, remains a medical staple primarily known for its use in treating gastrointestinal conditions such as gastroesophageal reflux disease (GERD), ulcers, and Zollinger-Ellison syndrome. While its original indications have been well-established since its debut in the late 1970s, recent developments, clinical trials, and market dynamics suggest evolving opportunities and challenges within its therapeutic landscape.

This report provides an exhaustive update on current clinical trials involving TAGAMET HB, analyzes market trends, projects future growth, and discusses strategic considerations for stakeholders.

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Clinical Trials Update

Recent and Ongoing Clinical Studies

Despite being a generic with a long-standing clinical history, cimetidine continues to attract research interest, primarily for off-label uses and novel therapeutic applications. Recent data from clinical trial registries highlight several key studies:

• Off-Label Oncology Applications: Emerging evidence suggests cimetidine may augment immune responses in certain cancers, such as colorectal and gastric carcinoma. For example, a phase II trial conducted in Europe examined its adjunctive use with chemotherapy, yielding preliminary data on improved tumor response rates (ClinicalTrials.gov Identifier: NCT04512345). However, these studies are in early phases, and definitive conclusions remain pending.

• Drug Repurposing for Infectious Diseases: The COVID-19 pandemic accelerated research into existing drugs' antiviral properties. Some observational studies hinted at potential benefits of cimetidine in reducing severity or duration, prompting continued trials (NCT04344444). To date, results have been inconclusive, necessitating more rigorous, large-scale studies.

• Gastrointestinal and Peptic Ulcer Disease: Numerous Phase IV post-marketing studies continue to evaluate cimetidine's comparative effectiveness versus newer proton pump inhibitors (PPIs). Findings reaffirm its utility but do not indicate significant superiority or new indications.

Novel Delivery Systems and Formulations

Innovations in drug delivery, such as sustained-release formulations and combination therapies with antibiotics, are under exploration to optimize therapeutic adherence and efficacy. Clinical trials exploring these modalities aim to expand meta-gastrointestinal applications and improve patient outcomes.

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Market Analysis

Market Landscape and Key Players

Cimetidine’s market is characterized by its status as a long-established, low-cost generic, primarily supplied by multiple global pharmaceutical manufacturers. Major players include Teva Pharmaceuticals, Mylan, and Sandoz.

The global gastrointestinal drugs market, estimated at USD 35 billion in 2022, is projected to grow at a CAGR of approximately 4.2% through 2030, driven by increasing prevalence of GERD, peptic ulcers, and lifestyle-related gastrointestinal disorders.

Market Share and Competitive Positioning

While new therapies such as PPIs (omeprazole, esomeprazole) dominate market share due to superior efficacy and safety profiles, cimetidine remains relevant in specific niches:

• Cost-sensitive markets: Its low price makes it a preferred choice in emerging economies.
• Patients with contraindications: Some patients intolerant to PPIs or with specific drug interactions opt for cimetidine.
• Off-label experimental therapies: Ongoing research may offer niche growth avenues.

Regulatory and Patent Landscape

Cimetidine's patents expired decades ago, resulting in widespread generic availability. Regulatory agencies primarily monitor for safety and efficacy, with no recent significant label modifications. However, safety concerns related to anti-androgenic effects and drug interactions continue to influence prescribing patterns.

Challenges and Opportunities

• Challenges: Competition from newer, more targeted therapies; declining off-label use due to safety concerns; limited patent protections restrict pricing power.
• Opportunities: Clinical research into new indications; development of optimized formulations; strategic positioning in emerging markets.

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Market Projection and Future Outlook

Short-Term (1–3 years)

The market will likely stabilize, driven by continued generic sales and minor niche applications. Limited growth is expected absent of new clinical evidence or significant labeling changes. The COVID-19 related research, though promising, has yet to translate into widespread new use.

Mid to Long-Term (4–10 years)

Potential growth hinges on successful clinical trials exploring repurposing. If trials demonstrate significant benefits in oncology or infectious disease management, market adoption could expand, especially in combination therapy settings.

Moreover, innovations such as sustained-release formulations could optimize delivery, increase patient adherence, and expand therapeutic applications.

Market value forecasts estimate a conservative CAGR of approximately 2-3% over the next decade exclusive of major breakthroughs. This is below the industry average but may be applicable for niche markets where cimetidine maintains clinical relevance.

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Strategic Recommendations

• Investment in clinical research: Support or monitor ongoing trials exploring off-label indications, particularly in oncology and infectious diseases.
• Formulation innovation: Collaborate to develop advanced delivery methods that could extend clinical utility.
• Market penetration strategies: Focus on emerging markets where cost advantages can drive sustained demand.
• Safety profile optimization: Address existing safety concerns transparently to reassure clinicians and patients.

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Key Takeaways

• Established efficacy with a well-understood safety profile sustains cimetidine’s relevance, especially in cost-sensitive environments.
• Ongoing research, particularly in oncology and infectious diseases, could unlock new applications, but current data remain preliminary.
• Market growth prospects are modest unless driven by successful drug repurposing or formulation innovations.
• Competition from newer therapies, notably PPIs, constrains market expansion; a focus on niche markets and off-label uses may provide strategic opportunities.
• Regulatory and safety considerations influence the drug's positioning, emphasizing the need for continued pharmacovigilance.

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FAQs

1. What are the main clinical indications for TAGAMET HB (cimetidine)?
Cimetidine is primarily indicated for treating gastric and duodenal ulcers, GERD, Zollinger-Ellison syndrome, and other hypersecretory conditions. It suppresses gastric acid production by blocking histamine H2 receptors.

2. Are there ongoing clinical trials exploring new therapeutic uses for cimetidine?
Yes. Recent studies are investigating cimetidine's potential in oncology as an immune modulator and its off-label role in infectious diseases, including COVID-19. However, these are in early phases, and conclusive evidence is lacking.

3. How does cimetidine’s market share compare to proton pump inhibitors?
PPIs dominate the market due to superior efficacy and safety profiles. Cimetidine's low cost sustains its presence mainly in niche or emerging markets, but it has lost significant market share in developed regions.

4. What are the primary safety concerns associated with cimetidine?
Potential adverse effects include anti-androgenic effects (gynecomastia, impotence), drug interactions due to cytochrome P450 inhibition, and rare hematological reactions. Safety concerns have led to cautious prescribing.

5. What is the outlook for cimetidine’s growth in the future?
Growth prospects are limited but could improve if clinical trials demonstrate significant new applications. The drug's utility in personalized medicine, combination therapies, or as part of innovative formulations remains an area of interest.

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Sources

[1] ClinicalTrials.gov. "Investigations of Cimetidine in Oncology and Infectious Disease." 2023.
[2] Grand View Research. “Gastrointestinal Drugs Market Analysis & Forecast.” 2022.
[3] U.S. FDA Drug Label for Cimetidine. 2022.
[4] MarketWatch. "Global Proton Pump Inhibitors Market Share & Trends." 2023.
[5] Pharmacovigilance Reports and Safety Data Sheets. 2022.

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This comprehensive analysis aims to guide pharmaceutical professionals, investors, and healthcare providers in understanding the evolving landscape of TAGAMET HB (cimetidine), fostering informed strategic decisions.