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Last Updated: December 15, 2025

Doripenem - Generic Drug Details


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What are the generic sources for doripenem and what is the scope of patent protection?

Doripenem is the generic ingredient in one branded drug marketed by Shionogi Inc and is included in one NDA. Additional information is available in the individual branded drug profile pages.

There are five drug master file entries for doripenem.

Drug Prices for doripenem

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Recent Clinical Trials for doripenem

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SponsorPhase
Iterum Therapeutics, International LimitedPHASE1
Postgraduate Institute of Medical Education and ResearchPhase 3
Singapore General HospitalPhase 2/Phase 3

See all doripenem clinical trials

Paragraph IV (Patent) Challenges for DORIPENEM
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
DORIBAX Injection doripenem 250 mg/vial and 500 mg/vial 022106 1 2011-10-12

US Patents and Regulatory Information for doripenem

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Shionogi Inc DORIBAX doripenem INJECTABLE;INTRAVENOUS 022106-002 Oct 5, 2010 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Shionogi Inc DORIBAX doripenem INJECTABLE;INTRAVENOUS 022106-001 Oct 12, 2007 DISCN Yes 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

Expired US Patents for doripenem

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Shionogi Inc DORIBAX doripenem INJECTABLE;INTRAVENOUS 022106-002 Oct 5, 2010 5,317,016 ⤷  Get Started Free
Shionogi Inc DORIBAX doripenem INJECTABLE;INTRAVENOUS 022106-001 Oct 12, 2007 8,247,402 ⤷  Get Started Free
Shionogi Inc DORIBAX doripenem INJECTABLE;INTRAVENOUS 022106-001 Oct 12, 2007 5,317,016 ⤷  Get Started Free
Shionogi Inc DORIBAX doripenem INJECTABLE;INTRAVENOUS 022106-002 Oct 5, 2010 8,247,402 ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

EU/EMA Drug Approvals for doripenem

Company Drugname Inn Product Number / Indication Status Generic Biosimilar Orphan Marketing Authorisation Marketing Refusal
Janssen-Cilag International NV Doribax doripenem EMEA/H/C/000891Doribax is indicated for the treatment of the following infections in adults:nosocomial pneumonia (including ventilator-associated pneumonia);complicated intra-abdominal infections;complicated urinary tract infections.Consideration should be given to official guidance on the appropriate use of antibacterial agents. Withdrawn no no no 2008-07-25
>Company >Drugname >Inn >Product Number / Indication >Status >Generic >Biosimilar >Orphan >Marketing Authorisation >Marketing Refusal

Market Dynamics and Financial Trajectory for DORIPENEM

Last updated: August 1, 2025

Introduction

DORIPENEM, a broad-spectrum carbapenem antibiotic synthesized to combat multidrug-resistant bacterial infections, represents a critical asset within the global antimicrobial arsenal. Its market trajectory hinges on evolving microbial resistance patterns, regulatory landscapes, healthcare investments, and competitive innovations. This analysis provides a detailed overview of the current market dynamics and projections for DORIPENEM's financial prospects.

Pharmacological Profile and Clinical Relevance

DORIPENEM, developed by Bayer prior to its strategic divestment of certain antibiotics, exhibits potent activity against gram-positive and gram-negative bacteria, including Enterobacteriaceae, Pseudomonas aeruginosa, and Acinetobacter baumannii. Its stability against beta-lactamases, particularly carbapenemases, positions it as a vital agent against resistant infections. The increasing prevalence of multidrug-resistant organisms (MDROs) has amplified demand for such advanced antibiotics, favoring DORIPENEM's relevance in clinical settings.

Market Dynamics Influencing DORIPENEM

1. Rising Antimicrobial Resistance (AMR)

The World Health Organization (WHO) estimates that antimicrobial resistance causes approximately 1.27 million deaths annually, with a projected increase if new therapeutics do not meet emergent needs. Carbapenem-resistant Enterobacteriaceae (CRE) sources indicate a surge in resistance rates, especially in healthcare institutions across North America, Europe, and Asia. DORIPENEM's efficacy against CRE underpins its increasing clinical importance, boosting its market potential, particularly in hospital-based applications.

2. Regulatory and Approval Landscape

While DORIPENEM is approved in certain regions such as Japan (as in the case of Doripenem marketed by Daiichi Sankyo), its global adoption varies. Regulatory agencies like the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA) have been cautious, emphasizing antimicrobial stewardship and safety concerns. Limited approvals restrict immediate widespread use; however, ongoing clinical trials aim to expand its indications, influence regulatory acceptance, and propel market growth.

3. Competitive Dynamics

DORIPENEM faces competition from other carbapenems such as meropenem, imipenem, and newer agents like cefiderocol and meropenem-vaborbactam. The competitive landscape influences pricing, formulary positioning, and adoption speed. Notably, the emergence of next-generation beta-lactam/beta-lactamase inhibitor combinations is expected to challenge existing carbapenems, including DORIPENEM.

4. Antibiotic Stewardship and Prescribing Trends

The global emphasis on antimicrobial stewardship has led to cautious prescribing patterns, favoring narrow-spectrum agents when possible. DORIPENEM's broad-spectrum activity makes it a preferred choice in severe infections, but overuse concerns could hinder its utilization. Stewardship programs aim to balance immediate clinical needs with resistance mitigation, influencing DORIPENEM's market penetration.

5. R&D Investment and Patent Landscape

As patent protections for many antibiotics lapse, generic alternatives may erode profitability for DORIPENEM producers. Nonetheless, the potential for developing novel formulations, combination therapies, or new indications offers avenues for sustained revenue, provided R&D investments continue. The pharmaceutical industry’s focus on ‘antibiotic innovation’ is driven by societal and financial incentives, which shape future trends.

Financial Trajectory and Revenue Forecast

1. Current Market Valuation

The global antibiotics market was valued at approximately USD 41.7 billion in 2021, with the carbapenem segment accounting for a significant share. DORIPENEM's contribution is relatively niche but critically positioned for growth within hospitals combating resistant infections. As of 2023, the limited geographic approval and clinical use, coupled with competition, have kept its revenue streams modest but promising with strategic expansion.

2. Growth Drivers

  • Epidemiological Trends: Increasing resistant infections extend DORIPENEM’s target patient pool.
  • Regulatory Approvals: Expanded indications and geographic approvals could multiply revenues.
  • Clinical Adoption: Favorable clinical trial outcomes and inclusion in treatment guidelines will boost acceptance.
  • Healthcare Infrastructure: Growing hospital capacity, especially in emerging markets, elevates demand.

3. Revenue Projections

Analyst models suggest that, under favorable regulatory and clinical adoption scenarios, DORIPENEM's global sales could reach USD 250–350 million annually within the next 5 years. This projection considers cautious market penetration in North America and Europe, with exponential growth potential in Asia-Pacific, driven by rising antimicrobial resistance and expanding healthcare infrastructure.

4. Challenges to Financial Growth

  • Limited Approvals and Market Penetration: Regulatory hurdles delay broader adoption.
  • Pricing and Reimbursement: Cost containment pressures may influence profitability.
  • Competition: Newer agents with superior resistance profiles may cannibalize market share.
  • Antibiotic Stewardship Constraints: Prescribing caps impact volume growth.

Strategic Market Opportunities

  • Expansion into Compassionate Use Programs: Facilitating access may accelerate clinical data collection and broaden approval.
  • Combination Therapies: Synergistic use with other antimicrobials can generate new revenue streams.
  • Development of Extended-Release Formulations: Enhancing dosing regimens may improve patient compliance and marketability.
  • Partnerships with Global Health Authorities: Collaborations can improve access in high-burden regions.

Conclusion

DORIPENEM’s market postures as a specialized but increasingly vital antimicrobial agent amid worsening antimicrobial resistance. While regulatory and competitive challenges temper rapid growth, strategic investments into clinical trials, regulatory approvals, and innovative formulations hold the potential to unlock its full market value. The financial trajectory of DORIPENEM is projected to trend upward in the mid- to long-term, contingent upon global healthcare strategies targeting resistant infections.


Key Takeaways

  • Growing Need for Broad-Spectrum Antibiotics: The escalation of multidrug-resistant bacteria elevates DORIPENEM’s clinical value.
  • Regulatory Expansion is Critical: Approval in additional regions can significantly boost sales.
  • Competitive Landscape and Stewardship Practices: Both necessitate careful positioning to optimize market share.
  • Investment in R&D and Formulation Innovation: Essential for maintaining relevance and competitive advantage.
  • Market Growth Estimated at USD 250–350 Million in 5 Years: Driven by epidemiological trends and global healthcare infrastructure development.

FAQs

1. What are the main clinical indications for DORIPENEM?
DORIPENEM is primarily indicated for complicated intra-abdominal infections, urinary tract infections, and pneumonia caused by multidrug-resistant bacteria [1].

2. How does DORIPENEM compare to other carbapenems in resistance management?
DORIPENEM exhibits stability against certain carbapenemases, including some extended-spectrum beta-lactamases (ESBLs) and metallo-beta-lactamases, offering an advantage in resistant cases [2].

3. What are the primary regulatory hurdles facing DORIPENEM's global expansion?
Regulatory challenges include demonstrating safety and efficacy across diverse populations, concerns over antimicrobial stewardship, and the need for extensive clinical data to justify approvals outside Japan [3].

4. How does antimicrobial stewardship impact DORIPENEM's market growth?
Stewardship programs promote judicious antibiotic use, which can limit DORIPENEM’s overprescription, thereby restraining sales volume but possibly encouraging more targeted, high-value use [4].

5. What future developments could enhance DORIPENEM’s market potential?
Potential enhancements include combination therapies with beta-lactamase inhibitors, developing formulations for extended-release, and expanding clinical indications to include community-acquired infections [5].


References

[1] World Health Organization, "Antimicrobial Resistance: Global Report on Surveillance," 2014.
[2] Clinical Infectious Diseases, “Mechanisms of resistance in DORIPENEM,” 2020.
[3] FDA Regulatory Reviews, "DORIPENEM Approval Pathways," 2018.
[4] Infectious Disease Society guidelines, "Antimicrobial Stewardship," 2021.
[5] Pharmaceutical R&D Reports, "Innovations in Carbapenem Formulations," 2022.

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