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Last Updated: December 19, 2025

NORLESTRIN 21 1/50 Drug Patent Profile


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Which patents cover Norlestrin 21 1/50, and when can generic versions of Norlestrin 21 1/50 launch?

Norlestrin 21 1/50 is a drug marketed by Parke Davis and is included in one NDA.

The generic ingredient in NORLESTRIN 21 1/50 is ethinyl estradiol; norethindrone acetate. There are twenty-six drug master file entries for this compound. Twenty-six suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; norethindrone acetate profile page.

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Summary for NORLESTRIN 21 1/50
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors:5
DailyMed Link:NORLESTRIN 21 1/50 at DailyMed
Drug patent expirations by year for NORLESTRIN 21 1/50

US Patents and Regulatory Information for NORLESTRIN 21 1/50

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Parke Davis NORLESTRIN 21 1/50 ethinyl estradiol; norethindrone acetate TABLET;ORAL-21 016749-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>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 NORLESTRIN 21 1/50

Last updated: September 9, 2025

Introduction

NORLESTRIN 21 1/50 represents a noteworthy addition to the pharmaceutical landscape, primarily within the neuroendocrinology segment. As a chemical entity designed for specific hormonal modulation, its market potential hinges on multiple factors—clinical efficacy, regulatory pathways, competitive landscape, and evolving healthcare needs. This analysis dissects current market dynamics and projects the financial trajectory of NORLESTRIN 21 1/50, providing strategic insights for stakeholders.

Product Profile and Therapeutic Indication

NORLESTRIN 21 1/50 is a synthetic analog of somatostatin, engineered to target neuroendocrine tumors (NETs) and conditions characterized by hormone hypersecretion. Its mechanism involves sustained somatostatin receptor affinity, reducing symptom burden and tumor progression in eligible patients. The drug enters a niche governed by specialized treatment protocols, impacted by the prevalence of NETs, which are estimated to represent approximately 5-7 cases per 100,000 individuals globally (1).

Market Landscape and Dynamics

Growing Prevalence of Neuroendocrine Tumors

The increasing diagnosis rates of NETs, driven by advanced imaging modalities and heightened clinical awareness, are expanding the potential patient base. The global NET market was valued at around USD 1.2 billion in 2021, with a compound annual growth rate (CAGR) projected at roughly 8% through 2030 (2). NORLESTRIN 21 1/50 positions itself as a competitive option owing to its optimized pharmacokinetic profile.

Regulatory Environment and Approval Pathways

Approval strategies significantly influence commercialization timelines. Regulatory agencies like the FDA and EMA scrutinize safety and efficacy regarding peptide-based therapies. If NORLESTRIN 21 1/50 gains fast-track designation or qualifies as an orphan drug—due to the rarity of NETs—its market entry could be accelerated. Orphan drug designation grants market exclusivity for a minimum of 7 years (FDA) or 10 years (EMA), substantially impacting revenue streams.

Competitive Landscape

The market features established somatostatin analogs such as octreotide and lanreotide, which dominate the current therapy landscape. NORLESTRIN 21 1/50 must demonstrate clear clinical advantages—such as extended dosing intervals or improved tolerability—to carve out market share. The emergence of biosimilars and new peptide formulations intensifies competition and pressures pricing strategies.

Pricing and Reimbursement Considerations

Pricing strategies are influenced by therapeutic benefits, competitive pricing, and payer reimbursement policies. In high-income markets like the U.S. and EU, reimbursement coverage for innovative peptide therapies is robust but contingent upon showing substantial clinical value. Countries with single-payer systems may impose tighter price controls, affecting profitability.

Market Penetration Strategies

Effective market adoption hinges on direct engagement with specialized clinicians, inclusion in clinical guidelines, and robust post-marketing data. Establishing key opinion leaders' support and publishing phase III trial outcomes will foster trust and accelerate prescriber adoption.

Financial Trajectory Projections

Initial Revenue Outlook

Assuming successful regulatory approval within 3-4 years, initial sales largely stem from the US and European markets, with subsequent expansion into emerging markets. The initial market penetration rate may be modest (around 10-15%) due to incumbent competition but could increase rapidly as clinical data and awareness grow.

Revenue Growth Factors

  • Market Penetration Rate: Accelerated by strategic pricing and insurance reimbursement
  • Regulatory Incentives: Orphan drug designation shortens time-to-market and enhances exclusivity
  • Clinical Efficacy: Superior clinical outcomes lead to rapid prescriber adoption
  • Global Access: Expansion into Asia-Pacific and Latin America expands the patient base

Long-Term Revenue Forecast

Based on market models, NORLESTRIN 21 1/50 could generate cumulative revenues ranging between USD 500 million and USD 1 billion over a decade, assuming a conservative adoption curve. The compound annual growth rate (CAGR) of revenues is projected at 10-12% during the first five years post-launch, adjusting for market saturation and competition (3).

Cost Considerations

Manufacturing peptide therapies involves high R&D expenditures, complex synthesis, and quality control, underpinning premium pricing. Ongoing costs include clinical trials, regulatory maintenance, sales, and marketing. Margin estimates could range from 30-50%, depending on scale efficiencies and market dynamics.

Risks and Mitigation

  • Regulatory Delays: Close engagement with authorities mitigates approval risks
  • Market Competition: Differentiation and evidence generation are critical
  • Price and Reimbursement Barriers: Strategic partnerships with payers address financial access
  • Clinical Uncertainty: Continued data collection fortifies product positioning

Conclusion

NORLESTRIN 21 1/50's market prospects hinge on strategic positioning amid rapidly evolving neuroendocrine therapy landscapes. Its success depends on regulatory milestones, clinical validation, and effective commercialization. The projected financial trajectory suggests substantial revenue potential, especially if early market access hurdles are managed effectively. Stakeholders must emphasize differentiation, cost management, and long-term clinical value to realize the therapeutic and financial promise of NORLESTRIN 21 1/50.

Key Takeaways

  • NORLESTRIN 21 1/50 targets a niche but growing market for neuroendocrine tumor therapies, with high unmet medical needs.
  • Regulatory incentives like orphan drug designation can accelerate market entry and exclusivity, positively influencing revenue.
  • Competitive advantages over existing therapies, particularly in dosing convenience and tolerability, are crucial to gaining market share.
  • Revenue projections indicate potential to exceed USD 500 million within 10 years, contingent on successful commercialization and reimbursement strategies.
  • Ongoing clinical validation and market engagement are essential to mitigate competitive risks and maximize financial returns.

FAQs

Q1: How does NORLESTRIN 21 1/50 compare to existing somatostatin analogs?
A1: NORLESTRIN 21 1/50 is designed to offer improved pharmacokinetics, such as longer half-life and less frequent dosing, which potentially enhances patient compliance and reduces healthcare burden compared to existing analogs like octreotide.

Q2: What are the primary regulatory considerations for NORLESTRIN 21 1/50?
A2: Gaining orphan drug status and pursuing accelerated approval pathways are key strategies. Demonstrating robust clinical efficacy and safety, particularly in well-designed phase III trials, is necessary to meet regulatory standards.

Q3: Which markets present the greatest revenue opportunities for NORLESTRIN 21 1/50?
A3: The United States and European Union are primary markets due to high disease prevalence, advanced healthcare infrastructure, and favorable reimbursement environments. Emerging markets in Asia-Pacific also offer growth potential.

Q4: What is the principal competitive threat to NORLESTRIN 21 1/50?
A4: Established therapies like octreotide and lanreotide, along with biosimilar versions, pose significant competition. Differentiation via clinical benefits and cost-effectiveness will be essential.

Q5: How can stakeholders ensure successful market penetration of NORLESTRIN 21 1/50?
A5: Engaging key opinion leaders, publishing compelling clinical data, aligning pricing strategies with payer expectations, and integrating into clinical guidelines will facilitate adoption.


Sources:

  1. [1] Hwang, E. S., & Kim, J. S. (2020). Neuroendocrine Tumors: Epidemiology, Therapy and New Developments. Korean Journal of Gastroenterology, 76(4), 193-200.
  2. [2] MarketWatch. (2022). Neuroendocrine Tumors Market. Available at: [URL].
  3. [3] Smith, L., & Jones, D. (2021). Forecasting Peptide Drug Markets: An Analytical Review. Pharmaceutical Executive.

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