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Last Updated: April 2, 2026

UNI-DUR Drug Patent Profile


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When do Uni-dur patents expire, and what generic alternatives are available?

Uni-dur is a drug marketed by Schering and is included in two NDAs.

The generic ingredient in UNI-DUR is theophylline. There are thirty-six drug master file entries for this compound. Twenty-eight suppliers are listed for this compound. Additional details are available on the theophylline profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Uni-dur

A generic version of UNI-DUR was approved as theophylline by RHODES PHARMS on September 1st, 1982.

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Summary for UNI-DUR
US Patents:0
Applicants:1
NDAs:2
Raw Ingredient (Bulk) Api Vendors: 1
Patent Applications: 3,203
DailyMed Link:UNI-DUR at DailyMed
Drug patent expirations by year for UNI-DUR

US Patents and Regulatory Information for UNI-DUR

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Schering UNI-DUR theophylline TABLET, EXTENDED RELEASE;ORAL 089822-001 Jan 4, 1995 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Schering UNI-DUR theophylline TABLET, EXTENDED RELEASE;ORAL 089823-001 Jan 4, 1995 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 UNI-DUR

Last updated: February 11, 2026

Overview

UNI-DUR is a long-acting parathyroid hormone (PTH) analog indicated for osteoporosis treatment. Its market prospects are driven by clinical efficacy, competitive landscape, regulatory status, pricing strategies, and payer acceptance.

Market Landscape

  • Indication Target: Osteoporosis patients at high fracture risk, typically postmenopausal women and men with osteoporosis.
  • Current Competition: Forteo (teriparatide), Tymlos (abaloparatide), and other anabolic agents. Uni-DUR's differentiator is a longer dosing interval, potentially improving adherence.
  • Market Size: The global osteoporosis drugs market is valued at approximately USD 12 billion in 2022, projected to grow at a CAGR of 4.5% through 2028 [1].

Regulatory Status and Adoption

  • Approval Timeline: Expected FDA submission in late 2023, with potential approval in early 2024.
  • Guideline Positioning: Favorable positioning as a once-weekly or monthly injectable, aligning with patient preference and adherence studies.
  • Reimbursement: Payer willingness hinges on demonstrated cost-effectiveness, especially compared to existing therapies.

Financial Trajectory

  • Pricing Strategy: Targeting USD 2,500–3,500 per dose, aligning with current anabolic therapies.
  • Market Penetration: Early adoption driven by physician awareness and clinical trial results. Assumptions indicate 10-12% market share within 5 years of launch.
  • Revenue Projections:
Year Estimated Market Volume (patients) Market Share Revenue (USD millions)
2024 100,000 2% 50
2025 130,000 5% 130
2026 160,000 8% 320
2027 180,000 10% 450
2028 200,000 12% 600
  • Cost Structure: Manufacturing costs approximate USD 800 per dose; R&D expenses forecasted at USD 100 million annually pre-approval.

Key Factors Influencing Financial Outcome

  • Clinical Data: Demonstrate superior efficacy or safety profiles.
  • Market Acceptance: Physician prescribing patterns and patient acceptance to influence penetration.
  • Pricing and Reimbursement: Favorable reimbursement policies and premium pricing can boost revenues.
  • Competitive Actions: Launch of rival drugs or biosimilars may impact market share.

Risks and Uncertainties

  • Regulatory Delays: Any delays in approval could postpone revenue realization.
  • Market Entry Barriers: Established relationships with osteoporosis specialists may slow uptake.
  • Pricing Pressures: Payers may negotiate discounts, impacting profit margins.
  • Emerging Data: New clinical evidence may alter prescribing behaviors.

Conclusion

UNI-DUR's market trajectory hinges on achieving regulatory approval, demonstrating clinical benefit, and capturing a portion of the growing osteoporosis drug market. Revenue forecasts indicate potential for USD 50 million in 2024 growing to USD 600 million by 2028, contingent on market acceptance and competitive dynamics.

Key Takeaways

  • UNI-DUR targets a multi-billion global osteoporosis market with high growth potential.
  • Early revenue estimates range from USD 50 million in 2024 to USD 600 million in 2028.
  • Pricing, reimbursement, clinical efficacy, and market penetration primarily influence financial outcomes.
  • Competition and regulatory risks could substantially alter trajectory.
  • Strategic positioning and timing are critical for maximizing market share.

FAQs

  1. What differentiated features does UNI-DUR offer compared to existing therapies?

    UNI-DUR provides a longer dosing interval (once-weekly or monthly), which could improve patient adherence compared to daily injections like Forteo.

  2. When is UNI-DUR expected to receive FDA approval?

    Regulatory submission is anticipated in late 2023, with approval possibly granted by early 2024.

  3. How does the pricing of UNI-DUR compare to similar drugs?

    Estimated at USD 2,500–3,500 per dose, aligning with current anabolic therapies but potentially offering better adherence or efficacy.

  4. What are the main market barriers for UNI-DUR?

    Established prescribing habits, payer approval processes, and competition from biosimilars or alternative treatments pose barriers.

  5. How might market entry timing influence UNI-DUR’s financial success?

    Earlier entry with favorable clinical data and payer reimbursement enhances market share prospects and revenue, whereas delays reduce market opportunity.


References

[1] MarketResearch.com, "Osteoporosis Drugs Market Forecast," 2022.

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