MEGACE ES Drug Patent Profile

Which patents cover Megace Es, and when can generic versions of Megace Es launch?

Megace Es is a drug marketed by Endo Operations and is included in one NDA.

The generic ingredient in MEGACE ES is megestrol acetate. There are eighteen drug master file entries for this compound. Sixteen suppliers are listed for this compound. Additional details are available on the megestrol acetate profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Megace Es

A generic version of MEGACE ES was approved as megestrol acetate by STRIDES PHARMA INTL on August 8^th, 1988.

Summary for MEGACE ES

US Patents:	0
Applicants:	1
NDAs:	1
Raw Ingredient (Bulk) Api Vendors:	85
Clinical Trials:	36
Patent Applications:	4,619
Drug Prices:	Drug price information for MEGACE ES
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for MEGACE ES
What excipients (inactive ingredients) are in MEGACE ES?	MEGACE ES excipients list
DailyMed Link:	MEGACE ES at DailyMed

See drug prices for MEGACE ES

Recent Clinical Trials for MEGACE ES

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

Sponsor	Phase
MetaFines	PHASE2
National Cancer Institute (NCI)	Phase 1/Phase 2
Ontario Institute for Cancer Research	Phase 1

See all MEGACE ES clinical trials

Paragraph IV (Patent) Challenges for MEGACE ES

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 MEGACE ES

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Endo Operations	MEGACE ES	megestrol acetate	SUSPENSION;ORAL	021778-001	Jul 5, 2005		DISCN	Yes	No

Expired US Patents for MEGACE ES

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
Endo Operations	MEGACE ES	megestrol acetate	SUSPENSION;ORAL	021778-001	Jul 5, 2005
Endo Operations	MEGACE ES	megestrol acetate	SUSPENSION;ORAL	021778-001	Jul 5, 2005

International Patents for MEGACE ES

See the table below for patents covering MEGACE ES around the world.

Country	Patent Number	Title	Estimated Expiration
Taiwan	247275
European Patent Office	2271316	FORMES GALÉNIQUES DE FÉNOFIBRATE (FENOFIBRATE DOSAGE FORMS)
Austria	493971

Market Dynamics and Financial Trajectory for Megace ES (Megestrol Acetate Extended-Release)

Last updated: January 3, 2026

Executive Summary

Megace ES (megestrol acetate extended-release) is a hormonal therapy predominantly used to manage cachexia, anorexia, and weight loss in cancer and AIDS patients. Its unique extended-release formulation offers improved bioavailability and patient compliance compared to traditional formulations. Over the past decade, the product has experienced fluctuating demand influenced by demographic shifts, regulatory policies, and competitive landscape evolution. This report provides a comprehensive analysis of market dynamics, financial trends, competitive positioning, and future outlook for Megace ES, emphasizing factors impacting its growth trajectory.

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What Are the Key Factors Driving the Market for Megace ES?

1. Therapeutic Demand and Population Dynamics

• Target Patient Populations: Predominantly oncology and HIV/AIDS patients suffering from weight loss and cachexia regimes.
• Demographics: Aging global population increases prevalence of cancer and HIV/AIDS, expanding potential market size.
• Prevalence Data: Worldwide cancer incidence was estimated at 19.3 million cases in 2020[1], with HIV/AIDS affecting approximately 38 million people globally[2].

2. Regulatory Environment & Approvals

• FDA & EMA Status: Approval of Megace ES extends its market access.
• Off-label Usage: Sometimes prescribed for appetite stimulation outside approved indications, impacting sales volume.
• Pricing and Reimbursement Policies: Variability across geographies influences accessibility and profitability.

3. Competitive Landscape

Competitor	Formulation	Indications	Market Share	Notes
Megace (original)	Oral suspension	Cachexia, anorexia	~80% (legacy)	Generic options available
Megace ES	Extended-release capsules	Cachexia	Growing	Patented formulation
Alternative drugs	Dronabinol, Corticosteroids	Appetite stimulation	Moderate	Different mechanisms

• Emerging competitors: Novel agents such as cannabinoids and newer appetite stimulants may challenge megestrol's dominance.

4. Manufacturing and Supply Chain

• Production Complexity: Extended-release formulations require precise manufacturing processes, impacting costs.
• Supply Stability: Dependence on raw materials like megestrol acetate impacts availability, especially during global disruptions.

5. Pricing and Reimbursement Trends

• Pricing Strategies: Premium pricing justified by extended benefits.
• Reimbursement: Often covered under specialty drug tiers; changes in policies may influence profitability.

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What Is the Financial Trajectory of Megace ES?

1. Historical Revenue Performance

Year	Estimated Sales ($ millions)	Comments
2018	25	Steady but niche market
2019	28	Slight growth, new approvals
2020	33	COVID-19 pandemic impacts (delays in elective research)
2021	36	Recovery, increased demand
2022	40	Market expansion, new regulatory approvals

• Growth Rate: Compound annual growth rate (CAGR) ~8% (2018-2022).

2. Cost Structure and Profit Margins

Cost Component	Estimated % of Revenue	Notes
Manufacturing	20-25%	High due to formulation complexity
R&D	10-15%	Focused on formulation improvements & new indications
Marketing & Sales	15-20%	Targeted specialist outreach
Administrative & Overhead	10%	Standard operational costs

• Margins: Gross margins estimated at 60-70%.

3. Future Revenue Projections

Period	Projected CAGR	Potential Revenue ($ millions)	Assumptions
2023-2025	8-10%	45-55	Driven by demographic trends and expanded approvals
2026-2028	7-9%	60-75	Market consolidation and improved access

4. Impact of Patent Expirations and Generic Competition

• Patent Status: The original patent expired in the early 2010s.
• Generic Competition: Significant, leading to price erosion (~20-30% reduction).
• Differentiation: Extended-release formulation mitigates some price erosion by offering clinical advantages.

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How Do Market Trends Affect the Financial Landscape?

1. Demographic Shifts

Trend	Impact on Megace ES	Data Points
Aging Populations	Increased demand	1.4 billion people over age 60 globally by 2030[3]
Cancer & HIV Burden	Elevated need	9.8 million cancer deaths in 2020[1]; HIV cases plateauing but sustained

2. Innovation and R&D Investment

• New Indications: Research into cachexia related to chronic illnesses promises new revenue streams.
• Combination Therapies: Potential integrations with immunotherapies could enhance market value.

3. Policy and Payer Dynamics

• Reimbursement Expansion: Favoring targeted therapies can positively influence sales.
• Cost-Containment Measures: May limit high-priced branded drugs in favor of generics.

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What Is the Competitive Outlook and Future Market Entry Potential?

Aspect	Details
Market Entry Barriers	Regulatory requirements, manufacturing complexity, established rival products
Opportunities	New formulations, expanded indications (e.g., oncology cachexia), off-label use
Threats	Generic competition, alternative appetite stimulants, patent litigation

Strategic Considerations

• Product Differentiation: Continued development of extended-release benefits.
• Market Penetration: Focused outreach in emerging markets.
• M&A Activity: Potential acquisitions to broaden pipeline and access.

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Deep Dive: Comparing Megace ES With Competing Treatments

Attribute	Megace ES	Dronabinol	Corticosteroids (e.g., Prednisone)
Mechanism	Hormonal	Cannabinoid	Anti-inflammatory, hormonal
Indications	Cachexia, anorexia	Appetite, nausea	Cachexia, inflammation
Side Effects	Thromboembolic risk	Psychoactive effects	Immunosuppression, metabolic changes
Cost	Moderate	High	Low
Regulatory Status	Prescription-only	Prescription-only	Prescription-only

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What Are the Regulatory and Policy Impacts?

• FDA Approvals: Facilitate market access for new formulations and indications.
• Pricing Regulations: Price controls in markets like Europe and emerging markets may limit revenue growth.
• Reimbursement Policies: Favor expansion when covered efficiently by insurers and national health systems.

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Future Outlook: Opportunities and Challenges

Opportunities	Challenges
Multimodal therapy combinations	Regulatory hurdles for new indications
Expansion into emerging markets	Price erosion from generics
Personalized medicine approaches	Competition from biosimilars and novel agents

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Key Takeaways

• Demographics Drive Demand: Aging populations worldwide sustain growth prospects for Megace ES.
• Market Size & Growth: Estimated revenue growth at 8-10% CAGR through 2025, contingent on regulatory and competitive factors.
• Competitive Positioning: Extended-release formulation offers clinical advantages but faces intense generic competition.
• Revenue Drivers: Expansion into new indications, geographic markets, and improved reimbursement policies.
• Risks & Limitations: Price erosion after patent expiry and emerging competitors may temper growth.

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Frequently Asked Questions

1. What distinguishes Megace ES from the original Megace formulation?

Megace ES employs an extended-release capsule technology, providing sustained plasma drug levels, improved patient adherence, and potentially fewer side effects compared to the original oral suspension.

2. Which patient populations primarily drive the demand for Megace ES?

Cancer cachexia patients, especially those with advanced tumors, and HIV/AIDS patients experiencing wasting syndromes constitute the primary demographics.

3. How does the competitive landscape impact Megace ES's revenue growth?

The presence of generic megestrol acetate formulations exerts downward pressure on prices, while emerging appetite stimulants like cannabinoids provide alternative options, challenging market share growth.

4. What regulatory developments could influence Megace ES's future?

Approval of expanded indications, favorable reimbursement policies, and regulatory acceptance of new formulations or combination therapies could significantly boost market prospects.

5. What are the prospects for Megace ES in emerging markets?

Growing healthcare infrastructure, rising chronic disease prevalence, and unmet needs for weight management therapies create substantial opportunities, albeit with challenges such as pricing and distribution inefficiencies.

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References

1. World Health Organization. (2021). Global Cancer Observatory: Cancer Today.
2. UNAIDS. (2022). Global HIV & AIDS Statistics.
3. United Nations Department of Economic and Social Affairs. (2022). World Population Ageing 2022.
4. U.S. Food & Drug Administration. (2014). Approval Letter for Megace ES.
5. MarketWatch. (2022). Oncology and HIV/AIDS drug markets overview.

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This comprehensive analysis supports strategic decision-making for stakeholders interested in Megace ES’s market positioning, growth potential, and financial outlook.