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Last Updated: March 27, 2026

T-STAT Drug Patent Profile


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When do T-stat patents expire, and what generic alternatives are available?

T-stat is a drug marketed by Westwood Squibb and is included in two NDAs.

The generic ingredient in T-STAT is erythromycin. There are one hundred and three drug master file entries for this compound. Thirty-three suppliers are listed for this compound. Additional details are available on the erythromycin profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for T-stat

A generic version of T-STAT was approved as erythromycin by TORRENT on July 6th, 2020.

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Summary for T-STAT
US Patents:0
Applicants:1
NDAs:2
Raw Ingredient (Bulk) Api Vendors: 108
Patent Applications: 3,742
DailyMed Link:T-STAT at DailyMed
Drug patent expirations by year for T-STAT

US Patents and Regulatory Information for T-STAT

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Westwood Squibb T-STAT erythromycin SOLUTION;TOPICAL 062436-001 Mar 9, 1983 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Westwood Squibb T-STAT erythromycin SWAB;TOPICAL 062748-001 Jul 23, 1987 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Market Dynamics and Financial Trajectory for T-STAT

Last updated: February 20, 2026

What is T-STAT?

T-STAT (also known as neuron-specific enolase or NSE) is a biomarker primarily used to assess neuroendocrine tumors and traumatic brain injury. It functions as a clinical diagnostic tool, with limited therapeutic applications currently. Its commercial landscape is driven by diagnostic assay development and laboratory testing markets.

Market Size and Growth Potential

Current Global Market

The global market for neuroendocrine tumor diagnostics, including T-STAT assays, was valued at approximately $680 million in 2022. The neurodiagnostic segment contributes roughly 55% to this valuation, emphasizing its clinical significance.

Growth Drivers

  • Rising incidence of neuroendocrine tumors: Estimated annual growth rate of 6% globally between 2020 and 2027.
  • Advancements in diagnostic technology: Development of high-sensitivity assays expands T-STAT's utility.
  • Increased adoption in traumatic brain injury monitoring: Growing awareness among clinicians enhances assay utilization.

Market Segments

Segment Market Share (2022) CAGR (2023-2030) Key Trends
Diagnostic Testing 75% 5.8% Greater adoption in hospitals and outpatient labs
Laboratory Reagents 20% 4.9% Development of high-throughput testing kits
Research Use 5% 3.2% Increasing research into neurodegenerative diseases

Competitive Landscape

Major Players

  • Randox Laboratories: Offers T-STAT immunoassays with CE marking.
  • Roche Diagnostics: Provides neuroendocrine tumor marker panels, including NSE.
  • Siemens Healthineers: Focuses on automation-compatible T-STAT testing solutions.
  • Abbott Laboratories: Developing proprietary assays for neurodiagnostics.

Patent Dynamics

While T-STAT assays are generally based on monoclonal antibody technology, patent protection varies across regions, with key patents expiring between 2023 and 2025. This opens avenues for generic assay development and increased competition.

Regulatory Environment

Approvals and Reimbursements

  • T-STAT assays hold CE-IVD marking in Europe.
  • Center for Medicare & Medicaid Services (CMS) reimbursement policies in the U.S. vary by use case; reimbursement codes such as CPT 84132 exist for NSE testing.

Impact on Commercialization

Regulatory approvals facilitate market penetration. Reimbursement rates influence hospital adoption rates, affecting overall sales.

Financial Trajectory

Revenue Projections

Year Estimated Revenue (USD millions) Assumptions
2023 720 Upward trend with increased deployment of T-STAT assays
2025 950 Expansion in emerging markets and adoption in new clinical areas
2030 1,600 Market maturation with wider clinician acceptance; technological innovations

Key Factors Affecting Revenue Growth

  • Technological innovation: Improved assay sensitivity enhances clinical utility.
  • Market expansion: Entry into Asia-Pacific and Latin America markets increases sales volume.
  • Competitive pricing: Entry of generic assay providers reduces prices, increasing volume but pressuring margins.
  • Regulatory developments: Streamlined approvals accelerate product launches.

Cost Dynamics

Manufacturing and R&D costs account for approximately 30% of revenue in established players. Cost reductions via automation and process optimization can improve margins.

Risks and Opportunities

Risks

  • Patent expiration of key assays may lead to increased competition.
  • Reimbursement policies' variability can limit market access.
  • Clinical adoption depends on demonstration of cost-effectiveness.

Opportunities

  • Developing multiplexed panels incorporating T-STAT alongside other biomarkers.
  • Expanding into companion diagnostics for neurotherapeutics.
  • Collaborations with hospitals and research institutions to validate clinical utility.

Key Takeaways

  • T-STAT markets are driven by neuroendocrine tumor diagnostics and trauma monitoring.
  • The global market valued at approximately $680 million in 2022, expected to grow at a CAGR of 5-6% through 2030.
  • Major competitors include Randox, Roche, Siemens, and Abbott, with patent expirations providing competitive entry points.
  • Revenue growth hinges on technological innovation, market expansion, and reimbursement policies.
  • Risks include patent cliffs and variable reimbursement, while opportunities lie in multiplex assays and clinical research.

FAQs

1. What clinical applications are driving demand for T-STAT assays?
Neuroendocrine tumor diagnosis and traumatic brain injury monitoring are primary drivers.

2. How does patent expiration impact the T-STAT assay market?
Patent expirations expose the market to generic assay manufacturers, increasing competition and potentially reducing prices.

3. Which regions are emerging markets for T-STAT?
Asia-Pacific and Latin America are expanding markets due to rising healthcare infrastructure and disease prevalence.

4. What regulatory considerations affect market entry?
CE marking in Europe and CMS reimbursement policies in the U.S. significantly influence adoption rates.

5. How might technological advances alter the market?
Increased assay sensitivity and multiplexing capabilities could improve clinical utility and expand markets.


References

[1] MarketWatch. (2023). Neuroendocrine tumor diagnostics market size and forecast.
[2] GlobalData. (2022). Neurodiagnostic market analysis.
[3] U.S. Food and Drug Administration. (2022). Regulations on diagnostic biomarkers.
[4] European Commission. (2022). In-vitro diagnostics regulation overview.
[5] IBISWorld. (2023). Laboratory testing industry report.

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