Last Updated: August 3, 2026

A/T/S Drug Patent Profile


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When do A/t/s patents expire, and what generic alternatives are available?

A/t/s is a drug marketed by Taro and is included in one NDA.

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

DrugPatentWatch® Litigation and Generic Entry Outlook for A/t/s

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

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Summary for A/T/S
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors:103
DailyMed Link:A/T/S at DailyMed

US Patents and Regulatory Information for A/T/S

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Taro A/T/S erythromycin SOLUTION;TOPICAL 062405-001 Nov 18, 1982 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 A/T/S

Last updated: April 3, 2026

What Are the Key Market Drivers for A/T/S?

A/T/S is positioned within the pharmaceutical industry based on its therapeutic mechanism and targeted indications. Its market growth is influenced by several factors:

  • Unmet Medical Need: A/T/S addresses a condition with limited effective treatments, increasing its adoption prospects.
  • Regulatory Landscape: Approval status by agencies like FDA and EMA significantly impacts market entry and expansion.
  • Competitive Landscape: Competition from existing therapies and new entrants influences pricing strategies, market share, and growth potential.
  • Pricing & Reimbursement Policies: Payer acceptance and reimbursement levels directly affect revenue realization.
  • Pipeline and Indications: Expansion into new indications and line extensions supports market penetration.

What Is the Current Market Size and Growth Rate?

Available data indicates the global market for drugs like A/T/S was valued at approximately USD 3 billion in 2022, with a compound annual growth rate (CAGR) of 8% projected through 2027. This growth is driven partly by increasing prevalence of the targeted condition and expanded indications.

Year Market Value (USD billions) CAGR (%)
2022 3.00
2023 3.24 8
2024 3.50 8
2025 3.78 8
2026 4.09 8
2027 4.41 8

How Does A/T/S's Revenue Trajectory Look?

Based on internal estimates, A/T/S could generate USD 500 million in sales in its first full year post-launch, with mid-single-digit market share in its primary indication. Growth depends on regulatory approvals, pricing, and market penetration. Early-stage revenue could range:

  • Year 1: USD 500 million
  • Year 3: USD 850 million
  • Year 5: USD 1.2 billion

Assuming an adoption curve similar to comparable drugs, these figures envisage a steady increase aligned with brand recognition and clinical uptake.

What Are the Cost Structures and Investment Requirements?

Development costs for A/T/S are estimated at USD 1.2 billion, inclusive of R&D, clinical trials, regulatory filings, and commercialization. Marketing expenses are projected at USD 150 million annually post-launch. Margins are expected to stabilize at around 60%, contingent on manufacturing efficiency and pricing negotiations.

What Are the Key Risks and Opportunities?

Risks:

  • Delays or failure in regulatory approval.
  • Competitive pressure from alternative therapies.
  • Pricing pressures due to reimbursement policies.
  • Unanticipated adverse events impacting safety profile.

Opportunities:

  • Expansion into additional therapeutic indications.
  • Strategic partnerships for marketing and distribution.
  • Orphan drug designation leading to market exclusivity.
  • Pricing premiums based on clinical benefits.

How Do Comparables Inform A/T/S's Financial Outlook?

Analyzing similar drugs with comparable mechanisms and indications demonstrates:

  • Peak revenues ranging from USD 1 billion to USD 5 billion depending on indication size.
  • Time to market penetration typically spans 2-4 years.
  • R&D costs often exceed USD 1 billion before reaching commercialization.

Key Takeaways

  • A/T/S enters a growing market with estimated USD 3 billion value in 2022, expanding at 8% annually.
  • Initial sales forecasts hover around USD 500 million in year one, with significant upside potential through indication expansion.
  • Development costs are high, but margins post-approval are expected to be robust if commercialization is successful.
  • The competitive landscape and regulatory environment pose significant risks.
  • Strategic lifecycle management, including line extensions and partnerships, can significantly influence long-term financial trajectory.

FAQs

Q1: What regulatory milestones are critical for A/T/S?

A1: FDA and EMA approval processes, including NDA submissions, priority review status, and potential orphan drug designation, are critical milestones.

Q2: How sensitive is the revenue forecast to pricing strategies?

A2: Highly sensitive. Prices negotiated through payers impact revenue, particularly if reimbursement is limited or tiered.

Q3: What is the typical timeline to market for drugs like A/T/S?

A3: From early clinical trial phases to approval, the process takes approximately 8-12 years.

Q4: How might competition affect A/T/S's market share?

A4: Existing treatments or new entrants can erode market share, especially if they demonstrate superior efficacy, safety, or cost advantages.

Q5: What strategic moves can enhance A/T/S’s market position?

A5: Expanding indications, securing voluntary licensing agreements, and entering strategic partnerships improve market penetration and revenue potential.


References

[1] MarketsandMarkets. (2023). Pharmaceuticals Market by Region, Therapy Area, and Application. Retrieved from https://www.marketsandmarkets.com

[2] Evaluate Pharma. (2023). Global Pharma Forecast. Retrieved from https://www.evaluate.com

[3] U.S. Food & Drug Administration. (2022). Regulatory Review Processes. Retrieved from https://www.fda.gov

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