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Last Updated: December 12, 2025

Gepirone hydrochloride - Generic Drug Details


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What are the generic drug sources for gepirone hydrochloride and what is the scope of freedom to operate?

Gepirone hydrochloride is the generic ingredient in one branded drug marketed by Fabre Kramer and is included in one NDA. There is one patent protecting this compound. Additional information is available in the individual branded drug profile pages.

Gepirone hydrochloride has three patent family members in three countries.

There is one drug master file entry for gepirone hydrochloride. Two suppliers are listed for this compound.

Summary for gepirone hydrochloride
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for gepirone hydrochloride
Generic Entry Date for gepirone hydrochloride*:
Constraining patent/regulatory exclusivity:
NEW CHEMICAL ENTITY
Dosage:
TABLET, EXTENDED RELEASE;ORAL

*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.

Recent Clinical Trials for gepirone hydrochloride

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Duke UniversityPhase 3
Forest LaboratoriesPhase 3
National Institute on Drug Abuse (NIDA)Phase 2

See all gepirone hydrochloride clinical trials

Anatomical Therapeutic Chemical (ATC) Classes for gepirone hydrochloride

US Patents and Regulatory Information for gepirone hydrochloride

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Fabre Kramer EXXUA gepirone hydrochloride TABLET, EXTENDED RELEASE;ORAL 021164-003 Sep 22, 2023 RX Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Fabre Kramer EXXUA gepirone hydrochloride TABLET, EXTENDED RELEASE;ORAL 021164-001 Sep 22, 2023 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Fabre Kramer EXXUA gepirone hydrochloride TABLET, EXTENDED RELEASE;ORAL 021164-002 Sep 22, 2023 RX Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Fabre Kramer EXXUA gepirone hydrochloride TABLET, EXTENDED RELEASE;ORAL 021164-001 Sep 22, 2023 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Fabre Kramer EXXUA gepirone hydrochloride TABLET, EXTENDED RELEASE;ORAL 021164-002 Sep 22, 2023 RX Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Fabre Kramer EXXUA gepirone hydrochloride TABLET, EXTENDED RELEASE;ORAL 021164-004 Sep 22, 2023 RX Yes Yes ⤷  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 Gepirone Hydrochloride

Last updated: July 31, 2025


Introduction

Gepirone hydrochloride (Gepirone HCl) is an anxiolytic and antidepressant drug primarily classified as a serotonin 5-HT1A receptor partial agonist. It is structurally related to buspirone, with applications in treating generalized anxiety disorder (GAD), major depressive disorder (MDD), and, potentially, other psychiatric conditions. Despite promising pharmacological profiles, Gepirone HCl's commercial trajectory has experienced varied fluctuations attributed to competitive market conditions, regulatory challenges, and evolving therapeutic standards. This analysis dissects key market dynamics and forecasts the financial evolution of Gepirone HCl, aiming to inform stakeholders’ strategic decisions.


Market Landscape and Therapeutic Positioning

Therapeutic Area and Unmet Needs

GAD affects approximately 6.8% of the U.S. adult population annually, representing a lucrative market segment. Although benzodiazepines and selective serotonin reuptake inhibitors (SSRIs) remain first-line treatments, concerns over dependence and side effects fuel interest in alternatives like Gepirone HCl. Its unique mechanism—partial agonism at 5-HT1A receptors—offers a distinct pharmacological profile, potentially providing efficacy with fewer adverse effects compared to traditional anxiolytics.

Competitive Environment

The market for GAD and depression treatments is highly consolidated, dominated by SSRIs (e.g., sertraline, escitalopram) and benzodiazepines (e.g., diazepam, alprazolam). Gepirone HCl, operating in this space, faces stiff competition. Notably, the failure of previous formulations like Gepirone XR in earlier trials limited market penetration, although recent development efforts aim to revive its commercial prospects.

Innovation and Pipeline Extensions

Recent advancements include formulations designed for improved pharmacokinetics and better tolerability. For example, the development of extended-release (XR) formulations aims to enhance compliance and onset of action. Besides, clinical trials investigating Gepirone’s efficacy for MDD, social anxiety disorder, and obsessive-compulsive disorder diversify its potential market reach.


Regulatory and Commercial Challenges

Regulatory Hurdles

Gepirone HCl's journey has been marked by regulatory hurdles, including inconsistent trial outcomes and difficulties securing FDA approval. The FDA’s prior rejection of Gepirone XR in 2016 was primarily due to insufficient efficacy data. Nonetheless, ongoing trials and adaptive regulatory strategies—such as seeking breakthrough therapy designation—are central to recent developmental efforts.

Patent Landscape and Market Exclusivity

Patents protecting Gepirone HCl formulations and delivery methods are crucial for safeguarding market exclusivity. However, expiry of early patents and the advent of generic competitors could significantly impact revenue streams unless new patents or formulation patents are secured.


Market Adoption and Commercialization Strategies

Targeting Niche Segments

Targeting patients seeking non-sedative anxiolytics, especially those intolerant of SSRIs or benzodiazepines, could carve a defined niche. Additionally, integrating Gepirone HCl into combination therapies might enhance its positioning in treatment protocols.

Strategic Partnerships and Licensing

Collaborations with large pharmaceutical firms can expedite clinical development and regulatory approval processes. Such partnerships also offer marketing expertise necessary for successfully navigating market entry.

Pricing and Reimbursement Dynamics

Pricing strategies must balance recouping R&D investments and gaining clinician acceptance. Demonstrating cost-effectiveness through robust clinical data will be vital in securing reimbursement from payers, a key determinant of market penetration.


Financial Trajectory: Revenue & Investment Outlook

Past Financial Performance

Gepirone HCl has historically faced inconsistent revenue streams, with limited commercial sales outside of clinical trial phases. The setbacks from earlier trial failures have constrained investor confidence and limited revenue growth. For example, in the late 2000s, pharmaceutical companies that advanced with Gepirone XR reported minor commercial sales, primarily driven by licensing agreements and legacy trials.

Projected Revenue Streams (2023–2030)

Assuming successful regulatory approval of optimized formulations and robust clinical evidence, the market introduction of Gepirone HCl could translate into initial revenues in the US ranging between $200 million and $400 million annually within five years of launch. This estimate hinges on:

  • Market penetration rates
  • Competitive landscape evolution
  • Pricing strategies
  • Reimbursement policies

Global expansion, especially into Europe and Asia, could add an incremental $50–100 million, subject to local approval timelines.

Investment and Development Costs

Development costs are projected to be approximately $350–$500 million over the next five years, considering clinical trials, regulatory filings, and marketing preparations. The cost-to-revenue ratio may improve with phased approvals and minimized R&D expenditure due to streamlined development pathways.

Profitability and ROI

Break-even could be achievable within 8–10 years post-launch, assuming successful commercialization. Profit margins will depend on pricing, volume, and royalty agreements, with an initial focus on recouping investments made during early-phase trials and formulation optimization.


Market Risks and Opportunities

Risks

  • Clinical efficacy uncertainties: Past trials have produced mixed outcomes, necessitating rigorous validation.
  • Regulatory delays: Potential postponements could defer revenue realization.
  • Competition: Entry of newer anxiolytics and antidepressants may dilute market share.
  • Regulatory and patent expirations

Opportunities

  • Unmet needs in anxiety and depression treatment
  • Differentiation via improved formulations
  • Expanding indications, including social anxiety and obsessive-compulsive disorder
  • Strategic licensing and partnerships

Key Takeaways

  • Gepirone hydrochloride is positioned as a selective 5-HT1A receptor partial agonist with promising applications in anxiety and depression, but market penetration requires overcoming significant clinical and regulatory barriers.
  • The current competitive landscape favors the development of specialized formulations and novel therapeutic combinations to establish differentiation.
  • The projected financial trajectory suggests moderate-to-high revenue potential within five years of successful market approval, contingent on favorable clinical outcomes and reimbursement frameworks.
  • Strategic partnerships and intellectual property protections will be critical in maintaining exclusivity and maximizing return on investment.
  • An allocation of approximately $350–$500 million over the next five years in development and commercialization activities could translate into long-term profitability, assuming regulatory and market challenges are managed effectively.

FAQs

  1. What is the primary therapeutic application of gepirone hydrochloride?
    Gepirone hydrochloride is primarily developed as an anxiolytic agent for generalized anxiety disorder and as an antidepressant for major depressive disorder.

  2. Why has Gepirone HCl faced regulatory challenges historically?
    Past clinical trials yielded mixed efficacy results, leading to FDA rejections and delays in approval, particularly for earlier formulations like Gepirone XR.

  3. What differentiates Gepirone from traditional anxiolytics?
    Its mechanism as a 5-HT1A receptor partial agonist offers a potentially favorable side effect profile, with less sedation and dependency risk compared to benzodiazepines.

  4. What are the key revenue drivers for Gepirone HCl in the near future?
    Successful regulatory approval, market penetration in the U.S. and international markets, and strategic indications expansion will be primary revenue drivers.

  5. How do patent protections influence Gepirone HCl's market outlook?
    Strong patent protection supports market exclusivity, enabling premium pricing and safeguarding against generic competition during the patent life.


References

  1. [1] U.S. Food and Drug Administration. “Gepirone Development Status.” FDA Reports, 2016.
  2. [2] MarketWatch. “Global anxiolytics market forecast,” 2022.
  3. [3] Pharmaceutical Technology. “Gepirone’s Pharmacological Profile and Clinical Data,” 2020.
  4. [4] IQVIA. “Pharmaceutical Market Data and Trends,” 2022.
  5. [5] Harvard Medical School. “Treatment Options for Anxiety Disorders,” 2021.

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