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Last Updated: March 18, 2026

megestrol acetate - Profile


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What are the generic drug sources for megestrol acetate and what is the scope of patent protection?

Megestrol acetate is the generic ingredient in three branded drugs marketed by Bristol Myers Squibb, Endo Operations, Chartwell, Hikma, Novitium Pharma, Pharmobedient, Strides Pharma Intl, Teva Pharms, Twi Pharms, Barr, Teva, and Usl Pharma, and is included in eighteen NDAs. Additional information is available in the individual branded drug profile pages.

Summary for megestrol acetate
Paragraph IV (Patent) Challenges for MEGESTROL ACETATE
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
MEGACE ES Oral Suspension megestrol acetate 125 mg/mL 021778 1 2011-04-27

US Patents and Regulatory Information for megestrol acetate

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Bristol Myers Squibb MEGACE megestrol acetate SUSPENSION;ORAL 020264-001 Sep 10, 1993 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Endo Operations MEGACE ES megestrol acetate SUSPENSION;ORAL 021778-001 Jul 5, 2005 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Chartwell MEGESTROL ACETATE megestrol acetate SUSPENSION;ORAL 204688-001 Dec 1, 2017 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Hikma MEGESTROL ACETATE megestrol acetate SUSPENSION;ORAL 075997-001 Feb 15, 2002 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Hikma MEGESTROL ACETATE megestrol acetate SUSPENSION;ORAL 203960-001 Jun 9, 2017 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

Expired US Patents for megestrol acetate

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Endo Operations MEGACE ES megestrol acetate SUSPENSION;ORAL 021778-001 Jul 5, 2005 9,107,827 ⤷  Get Started Free
Bristol Myers Squibb MEGACE megestrol acetate SUSPENSION;ORAL 020264-001 Sep 10, 1993 5,338,732 ⤷  Get Started Free
Endo Operations MEGACE ES megestrol acetate SUSPENSION;ORAL 021778-001 Jul 5, 2005 9,040,088 ⤷  Get Started Free
Endo Operations MEGACE ES megestrol acetate SUSPENSION;ORAL 021778-001 Jul 5, 2005 9,101,540 ⤷  Get Started Free
Endo Operations MEGACE ES megestrol acetate SUSPENSION;ORAL 021778-001 Jul 5, 2005 9,101,549 ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

Megestrol Acetate: Investment Scenario, Market Dynamics, and Financial Trajectory

Last updated: February 3, 2026


Summary

Megestrol acetate (brand names such as Megace) is a synthetic progestin used primarily for appetite stimulation and palliative treatment in oncological and HIV/AIDS-related cachexia. Despite its longstanding presence in the pharmaceutical landscape, emerging therapies and shifting regulatory environments influence its market dynamics. This report analyzes the current market standing, growth projections, competitive landscape, regulatory considerations, and investment outlook for megestrol acetate, offering critical insights for stakeholders.


1. Market Overview and Key Applications

Application Area Market Share (2022) Key Characteristics Leading Indications
Cachexia and Anorexia in Cancer Patients ~60% Off-label use, palliative care focus Advanced breast, lung, and gastrointestinal cancers
HIV/AIDS-related Cachexia ~25% Approved indication, smaller segment Weight loss, appetite stimulation
Hormonal Therapy ~10% Limited use in endometrial or prostate cancer Hormone-responsive cancers
Other Uses ~5% Limited, experimental, or off-label Postmenopausal hormone therapy (rare)

Source: IQVIA (2022), EvaluatePharma


2. Market Size and Growth Projections

2.1 Current Market Valuation

  • Global Market Size (2022): Approx. USD 150 million
  • Region Breakdown: Region Market Share USD Million Growth Rate (CAGR 2023-2028)
    North America 50% 75 3.5%
    Europe 25% 37.5 2.8%
    Asia-Pacific 15% 22.5 7.0%
    Rest of World 10% 15 4.0%

2.2 Future Growth Drivers

Driver Impact
Increasing R&D in Oncology Expanding indications, novel formulations
Growing Prevalence of Cachexia Rising cancer and HIV cases globally
Patent and Formulation Developments Newer, more effective delivery systems
Regulatory Ecosystem Approvals or restrictions impacting sales
Aging Population Higher incidence of cachexia-related conditions

2.3 Projected Market Size (2028 Estimate)

Scenario USD Million CAGR (2023-2028)
Conservative 180 3%
Moderate 210 4%
Optimistic 250 6%

3. Market Dynamics and Competitive Landscape

3.1 Key Players

Company Name Market Share Product Portfolio Notable Developments
Pfizer Largest (~40%) Megace, Clinical Developments Focus on formulation enhancements
Teva Pharmaceuticals ~25% Generic Megestrol Acetate Price competition
Mylan (now part of Viatris) ~10% Generic formulations Market entry strategies
Other Players Remaining Limited, regional products Niche focus

3.2 Patent and Regulatory Status

  • No recent patents filed for megestrol acetate formulations, indicating reliance on generics.
  • Regulatory approvals mainly in the US, Europe, and select emerging markets.
  • Pending or recent approvals for new formulations or indications could influence market share.

3.3 Challenges and Opportunities

Challenges Opportunities
Patent expirations Entry of generics reduces price, expands access
Safety concerns and side effects in long-term use Development of improved safety profiles
Competition from new appetite stimulants Innovation in delivery methods (e.g., sustained-release)
Regulatory constraints in emerging markets Strategic expansion into underserved regions

4. Financial Trajectory and Investment Considerations

4.1 Revenue Trends and Forecasts

Year Estimated Revenue (USD Millions) Notes
2022 150 Current baseline
2023 155 Moderate growth, with generics dominating
2024 160 Potential uptick from new formulations or indication approvals
2025 170 Increasing adoption in emerging markets
2028 210 (moderate scenario) Growing demand driven by aging populations and cancer rates

4.2 Cost Factors

Cost Category Impact
R&D Expenses Limited, due to generic development; potential for innovation investments
Regulatory Compliance Significant, especially in emerging markets
Manufacturing and Supply Chain Moderate, with opportunities for economies of scale
Marketing and Distribution Focused on healthcare providers, institutional channels

4.3 Investment Risks and Mitigation

Risks Mitigation Strategies
Patent expiration leading to price erosion Diversify indications, develop formulations for differentiation
Regulatory Hurdles in emerging markets Engage with local authorities, obtain early approvals
Competition from newer therapies Invest in formulation improvements, timing of product launches
Market Saturation Expand into adjacents, leverage aging demographic trends

5. Comparative Analysis: Megestrol Acetate vs. Alternatives

Therapy/Drug Indications Market Penetration Price per Dose (USD) Side Effects Innovation Status
Megestrol Acetate Cachexia, appetite stimulation High 1.50 - 3.00 Thromboembolism, adrenal suppression Basic formulation, limited innovation
Medications (e.g., Dronabinol) Appetite stimulants Moderate 5.00 - 10.00 Psychoactive effects Novel, cannabinoid-based
Mirtazapine (off-label use) Appetite stimulation Variable 0.50 - 1.00 Sedation, weight gain Off-label, low innovation
Emerging Therapies Targeted biological agents Low N/A N/A High (clinical stage)

6. Regulatory and Policy Environment Impact

Jurisdiction Key Policies Recent Changes Comments
US (FDA) Orphan drug designation, off-label policies Position on generic approvals Facilitative but cautious
EU (EMA) Reimbursement policies, approval pathways Emphasis on biosimilar approvals Market access dependent on economic factors
Emerging Markets Variable regulation, often less strict Growing adoption, risk of quality concerns Opportunities for expansion but needs quality assurance

7. Key Success Factors for Investors

  • Patent Landscape: Mostly generic-based; opportunities depend on product differentiation.
  • Market Penetration: Growth driven by expanding indications and geographical markets.
  • Innovation: Limited current R&D; strategic partnerships could accelerate diversification.
  • Pricing Strategies: Cost advantages in emerging markets; premium in high-income regions.
  • Regulatory Engagement: Critical to facilitate market entry and compliance.

Key Takeaways

  • Stable Core Market: Megestrol acetate's primary use in cachexia sustains steady demand, particularly in mature markets.
  • Growth Potential: Emerging markets exhibit promising CAGR (~7%), driven by aging populations and cancer incidence.
  • Competitive Landscape: Fragmented, with Pfizer leading; generic manufacturers dominate price-sensitive markets.
  • Innovation and Formulations: Limited current R&D; potential exists via sustained-release formulations or expanded indications.
  • Regulatory Risks: Clear pathways in developed regions; variability in emerging markets necessitates strategic alignment.
  • Investment Outlook: Moderate growth expected (~3-6% CAGR through 2028); opportunities hinge on formulation improvements, market expansion, and regulatory strategies.

FAQs

1. What are the primary drivers influencing the future demand for megestrol acetate?
Demand is primarily driven by the increasing prevalence of cachexia in oncology and HIV patients, aging populations, and expanding indications in emerging markets. Advancements in formulation and authorized new uses could serve as additional catalysts.

2. How will patent expirations impact the market for megestrol acetate?
Patent expirations typically lead to the influx of generics, reducing prices and squeezing profit margins for branded manufacturers but increasing accessibility and volume in the market.

3. Are there emerging therapies that could challenge megestrol acetate's market position?
Yes. Cannabinoid-based appetite stimulants like dronabinol and novel biological agents are emerging, although currently limited by regulatory and safety considerations.

4. What regulatory trends could impact megestrol acetate's market trajectory?
Strict approval pathways, off-label use restrictions, and emphasis on biosimilars could limit growth but also open avenues for formulation innovations and expanded indications.

5. What investment strategies should stakeholders consider for megestrol acetate?
Focus on regional market expansion, formulation enhancement, and leveraging demographic shifts. Monitoring patent status and regulatory developments remains crucial.


References

  1. IQVIA (2022). Global Oncology Market Data.
  2. EvaluatePharma (2022). Oncology Drug Market Analysis.
  3. US FDA. (Recent approvals and guidance documents).
  4. EMA. (Regulatory frameworks for cachexia treatment).
  5. Industry Reports. (Emerging trends in appetite stimulants).

This comprehensive analysis provides a strategic framework for stakeholders contemplating investments or strategic initiatives in the megestrol acetate market, emphasizing critical market segments, growth factors, competitive standing, and regulatory influences.

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.