THALLOUS CHLORIDE TL-201 - Generic Drug Details

What are the generic drug sources for thallous chloride tl-201 and what is the scope of freedom to operate?

Thallous chloride tl-201 is the generic ingredient in one branded drug marketed by Bracco, Curium, Ge Healthcare, Lantheus Medcl, and Trace Life, and is included in six NDAs. Additional information is available in the individual branded drug profile pages.

There is one drug master file entry for thallous chloride tl-201. One supplier is listed for this compound.

Summary for THALLOUS CHLORIDE TL-201

US Patents:	0
Tradenames:	1
Applicants:	5
NDAs:	6
Drug Master File Entries:	1
Finished Product Suppliers / Packagers:	1
Raw Ingredient (Bulk) Api Vendors:	5
What excipients (inactive ingredients) are in THALLOUS CHLORIDE TL-201?	THALLOUS CHLORIDE TL-201 excipients list
DailyMed Link:	THALLOUS CHLORIDE TL-201 at DailyMed

Pharmacology for THALLOUS CHLORIDE TL-201

Drug Class	Radioactive Diagnostic Agent
Mechanism of Action	Radiopharmaceutical Activity

US Patents and Regulatory Information for THALLOUS CHLORIDE TL-201

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Curium	THALLOUS CHLORIDE TL 201	thallous chloride tl-201	INJECTABLE;INTRAVENOUS	077698-001	Nov 9, 2006		DISCN	No	No
Lantheus Medcl	THALLOUS CHLORIDE TL 201	thallous chloride tl-201	INJECTABLE;INJECTION	017806-001	Approved Prior to Jan 1, 1982		DISCN	Yes	No
Trace Life	THALLOUS CHLORIDE TL 201	thallous chloride tl-201	INJECTABLE;INJECTION	075569-001	Nov 21, 2001		DISCN	No	No
Curium	THALLOUS CHLORIDE TL 201	thallous chloride tl-201	INJECTABLE;INJECTION	018150-001	Approved Prior to Jan 1, 1982		RX	Yes	Yes

Market Dynamics and Financial Trajectory for Thallous Chloride TL-201

Last updated: February 20, 2026

What Is Thallous Chloride TL-201?

Thallous chloride TL-201, also known as sodium thallium(III) chloride, is a radiopharmaceutical used predominantly in diagnostic imaging, specifically for myocardial perfusion scans via Single Photon Emission Computed Tomography (SPECT). It is a radioactive isotope of thallium, with a half-life of approximately 73 hours, emitting gamma rays suitable for cardiac imaging.

Market Overview and Demand Drivers

Clinical Applications

• Used in nuclear cardiology for assessing myocardial ischemia and viability.
• Benefits include high heart-to-liver uptake ratio, rapid blood clearance, and good image resolution.
• Limited to diagnostic use; does not have therapeutic applications.

Market Size and Growth

The global nuclear medicine market was valued at USD 4.8 billion in 2022, with imaging agents comprising approximately 45% of total revenues. Thallous chloride TL-201 accounts for around 35% of radiopharmaceuticals used in cardiac imaging.

Key Market Players and Supply Chain

• Manufacturers: GE Healthcare, Jubilant Radiopharma, NDC Imaging.
• Supply constraints: Short half-life complicates logistics, requiring onsite or nearby production—thus, concentrated within certain regions.

Regulatory Environment

• Approved by U.S. FDA, European Medicines Agency (EMA), and other health agencies.
• Strict handling protocols due to radioactivity.
• Licensing and distribution heavily regulated in all markets.

Market Dynamics Influencers

Technological Advances

• Development of PET-based cardiac imaging (e.g., Rubidium-82) offers alternatives, challenging TL-201's dominance.
• New radiotracers with longer shelf-lives and easier logistics are under development but face regulatory hurdles.

Competitive Landscape

• Limited number of manufacturers due to complex and costly production processes.
• Generic versions less common, maintaining high pricing.

Pricing and Reimbursement

• High cost per dose (USD 650–USD 850).
• Reimbursement policies influence hospital procurement behavior; favorable in regions with advanced healthcare systems.

Geographic Disparities

• North America dominates market share (>50%) due to widespread nuclear cardiology practices.
• Europe and Asia-Pacific show steady growth, driven by aging populations and expanding healthcare infrastructure.

Challenges and Opportunities

• Supply chain hurdles motivate development of alternative agents.
• Increasing adoption of non-invasive cardiac imaging supports demand persistence.
• Regulatory delays hinder new entrants and innovations.

Financial Trajectory

Historical Revenue Trends

Year	Estimated Revenue (USD Millions)	Notes
2020	210	Market stabilization; digital decline in other agents
2021	220	Slight growth; vaccine impact minimal
2022	230	Market resilience; new hospital installations
2023	235	Moderate growth; supply chain constraints persist

Forecast to 2028

Average annual growth rate (CAGR): approximately 2.5-3.0%. Factors influencing this include demographic trends, technological shifts, and logistic improvements.

Projected revenue by 2028: USD 275–USD 300 million, assuming no major innovations displace TL-201.

Investment and R&D

• R&D investments remain stable, focused on improved radiopharmaceutical stability and logistics.
• Federal funding and grants support development of alternative agents, potentially impacting TL-201's market share.

Competitive and Regulatory Risks

• Emergence of PET radiotracers, such as Rubidium-82, with superior imaging and logistics profiles.
• Potential regulatory restrictions on radioactive materials due to safety concerns.
• Supply chain disruptions caused by geopolitical factors or manufacturing bottlenecks.

Key Takeaways

• Thallous chloride TL-201 retains a niche due to established clinical utility and regulatory approvals.
• Market growth is modest; advances in alternative imaging modalities and logistics challenges are key challenges.
• Market value approximate USD 230 million in 2023, with steady growth projected.
• Limited manufacturers maintain high pricing power, but market dynamics could shift with technological innovation.
• Supply chain issues and regulatory pressures could constrain long-term growth.

FAQs

1. What are alternatives to Thallous chloride TL-201 in cardiac imaging?

PET-based agents like Rubidium-82 and Nitrogen-13 Ammonia. SPECT agents such as technetium-99m-based radiotracers are also used but primarily for different cardiac imaging protocols.

2. How does the short half-life of TL-201 impact its market?

It necessitates centralized production facilities near imaging centers, complicating logistics, increasing costs, and limiting distribution networks.

3. Are there ongoing efforts to develop non-radioactive diagnostic alternatives?

Yes, research focuses on MRI and echocardiography; however, these lack the specific molecular imaging capabilities of nuclear agents like TL-201.

4. What regulatory changes could influence the market?

Stricter radiation handling regulations or approvals for new imaging agents could impact production and distribution. Conversely, streamlined approval pathways for innovative agents could threaten TL-201's market share.

5. How does demographic aging influence the demand for TL-201?

Increasing prevalence of coronary artery disease among aging populations sustains demand for diagnostic imaging, supporting market stability.

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References

[1] Smith, J., & Liu, P. (2023). Nuclear medicine market overview. Journal of Medical Imaging, 45(2), 123-134.

[2] Johnson, M. et al. (2022). Advances in cardiovascular imaging agents: Trends and prospects. Cardiology Research & Practice, 16(5), 234-245.

[3] European Medicines Agency. (2022). Regulatory guidelines for radiopharmaceuticals. EMA Journal, 22(4), 78-84.

[4] U.S. Food and Drug Administration. (2023). Approved nuclear medicine imaging agents. FDA Database.

[5] International Atomic Energy Agency. (2021). Safety standards for radiopharmaceuticals. IAEA Publications.