drospirenone; estetrol - Profile

What are the generic drug sources for drospirenone; estetrol and what is the scope of freedom to operate?

Drospirenone; estetrol is the generic ingredient in one branded drug marketed by Mayne Pharma and is included in one NDA. There are seven patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Drospirenone; estetrol has two hundred and thirty-one patent family members in fifty-one countries.

Summary for drospirenone; estetrol

International Patents:	231
US Patents:	7
Tradenames:	1
Applicants:	1
NDAs:	1

DrugPatentWatch^® Estimated Loss of Exclusivity (LOE) Date for drospirenone; estetrol

Constraining patent/regulatory exclusivity:

NEW CHEMICAL ENTITY

Dosage:

TABLET;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.

US Patents and Regulatory Information for drospirenone; estetrol

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Mayne Pharma	NEXTSTELLIS	drospirenone; estetrol	TABLET;ORAL	214154-001	Apr 15, 2021		RX	Yes	Yes	12,458,649
Mayne Pharma	NEXTSTELLIS	drospirenone; estetrol	TABLET;ORAL	214154-001	Apr 15, 2021		RX	Yes	Yes	12,233,074		Y
Mayne Pharma	NEXTSTELLIS	drospirenone; estetrol	TABLET;ORAL	214154-001	Apr 15, 2021		RX	Yes	Yes	12,427,114		Y
Mayne Pharma	NEXTSTELLIS	drospirenone; estetrol	TABLET;ORAL	214154-001	Apr 15, 2021		RX	Yes	Yes	7,732,430		Y
Mayne Pharma	NEXTSTELLIS	drospirenone; estetrol	TABLET;ORAL	214154-001	Apr 15, 2021		RX	Yes	Yes	11,957,694		Y

EU/EMA Drug Approvals for drospirenone; estetrol

Company	Drugname	Inn	Product Number / Indication	Status	Generic	Biosimilar	Orphan	Marketing Authorisation	Marketing Refusal
Estetra SPRL	Lydisilka	estetrol, drospirenone	EMEA/H/C/005382Oral contraception.The decision to prescribe Lydisilka should take into consideration the individual woman’s current risk factors, particularly those for venous thromboembolism (VTE), and how the risk of VTE with Lydisilka compares with other combined hormonal contraceptives (CHCs) (see sections 4.3 and 4.4).	Authorised	no	no	no	2021-05-19
Gedeon Richter Plc.	Drovelis	estetrol, drospirenone	EMEA/H/C/005336oral contraceptive	Authorised	no	no	no	2021-05-19

International Patents for drospirenone; estetrol

Country	Patent Number	Title	Estimated Expiration
Portugal	3701944
South Korea	20180019697
World Intellectual Property Organization (WIPO)	02094277
Japan	2018521985
Mexico	384904

Supplementary Protection Certificates for drospirenone; estetrol

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
3632448	LUC00266	Luxembourg		PRODUCT NAME: DROSPIRENONE; AUTHORISATION NUMBER AND DATE: 61678, 20210401
3632448	202240023	Slovenia		PRODUCT NAME: DROSPIRENONE; NATIONAL AUTHORISATION NUMBER: H/21/02860/001-004; DATE OF NATIONAL AUTHORISATION: 20211217; AUTHORITY FOR NATIONAL AUTHORISATION: SI; FIRST AUTHORISATION IN THE EUROPEAN ECONOMIC AREA: 61678; DATE OF FIRST AUTHORISATION IN THE EUROPEAN ECONOMIC AREA: 20191016; AUTHORITY OF FIRST AUTHORISATION IN THE EUROPEAN ECONOMIC AREA: DK
0398460	04C0022	France		PRODUCT NAME: ESTRADIOL ANHYDRE DROSPIRENONE; REGISTRATION NO/DATE IN FRANCE: NL 28661 DU 20040316; REGISTRATION NO/DATE AT EEC: RVG 27505 DU 20021211
3701944	PA2022508	Lithuania		PRODUCT NAME: DROSPIRENONAS DERINYJE SU ESTETROLIU; REGISTRATION NO/DATE: EU/1/21/1547 20210519
3701944	202240021	Slovenia		PRODUCT NAME: DROSPIRENONE IN COMBINATION WITH ESTETROL; NATIONAL AUTHORISATION NUMBER: EU/1/21/1547, EU/1/21/1548; DATE OF NATIONAL AUTHORISATION: 20210519; AUTHORITY FOR NATIONAL AUTHORISATION: EU

Investment Scenario, Market Dynamics, and Financial Trajectory for Drospirenone; Estetrol

Last updated: February 3, 2026

Executive Summary

This report evaluates the investment potential, market dynamics, and financial outlook for a pharmaceutical drug comprising drospirenone and estetrol. Both compounds are steroid hormones with distinctive therapeutic applications, notably in contraception and hormone therapy. The combination’s development pathway, competitive landscape, regulatory environment, and market forecasts highlight significant growth opportunities amid challenges from patent expiries and emerging generic competition.

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Introduction to Drospirenone and Estetrol

Component	Type	Primary Uses	Development Status
Drospirenone	Synthetic progestin (anti-mineralocorticoid)	Oral contraceptives, hormone replacement therapy (HRT), Acne treatment	Commercialized; patents expiring in select jurisdictions
Estetrol	Human estrogen (Fifth estrogen)	Contraception, HRT, Potential in breast and prostate cancer	Regulatory approval pending or recent, potential for premium positioning

Market focus: Combination therapies integrating drospirenone and estetrol aim to leverage synergistic benefits in contraception and menopausal management.

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Market Dynamics

Global Market Overview

Market Segment	2022 Revenue (USD)	Projected CAGR (2023-2030)	Key Players
Oral Contraceptives	~$10 billion	4.8%	Bayer, Teva, MSD
Hormone Replacement Therapy	~$16 billion	5.0%	Novo Nordisk, Pfizer, IBSA

Note: The combined market for drospirenone-based contraceptives and estetrol-based HRT estimated at over USD 15 billion by 2030.

Therapeutic and Regulatory Landscape

• Contraceptive Market: Dominated by ethinylestradiol-based pills; drospirenone’s profile makes it a preferred alternative due to fewer side effects.
• Hormone Therapy: Rising demand for natural or selective estrogen receptor modulators, with estetrol positioned as a safer alternative owing to its selective tissue activity.

Regulatory Environment

• Key Approvals:
  • Drospirenone has long-standing approval (e.g., Yasmin, Yaz).
  • Estetrol has obtained approval in certain markets for contraception (Esterol®) and remains in late-stage development for HRT.
• Patents & Exclusivity:
  • Drospirenone patents expiring between 2023-2025.
  • Estetrol patents extending into 2030, providing a potential window for exclusive sales.

Market Entry Barriers & Opportunities

Barriers	Opportunities
Regulatory approval processes	High unmet needs for safer, natural hormone formulations
Patent expirations of older contraceptives	Innovation with combination therapies; premium pricing
Competition from generics	Strategic partnerships or licensing to enhance market penetration

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Financial Trajectory Analysis

Revenue Projections (2023-2030)

Year	Estimated Global Sales (USD billion)	CAGR	Notes
2023	1.2	-	Launch phase for estetrol-based combo drugs
2025	2.0	19%	Increasing acceptance and approvals
2027	3.5	23%	Gaining market share in contraceptives and HRT
2030	6.0	21%	Full market penetration, established brand presence

Assumptions:

• Adoption rates aligned with previous hormone therapy launches.
• Regulatory approvals in key territories (US, EU, Asia).
• Competitive landscape remains manageable with continued R&D investment.

Cost Structure & Profit Margins

Category	Cost (%) of Revenue	Notes
Manufacturing	25-30%	Scale efficiencies reduce costs over time
R&D	15-20%	High for novel combinations, particularly estetrol
Marketing & Sales	20-25%	Significant for pathway branding and physician outreach
Profit Margins	15-25% (estimated by 2027)	Dependent on competition and patent exclusivity

Investment Considerations

• Development Costs: Estimated $150-$200 million for clinical trials, regulatory submissions.
• Market Entry Timing: 3-5 years to commercialization post-approval.
• Potential for Licensing & Partnerships: High-value licensing deals could accelerate revenue streams.

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Comparison of Competitive Landscape

Drug/Compound	Indications	Market Share (2022)	Patent Status	Regulatory Status
Ethinylestradiol-based pills	Contraception	70%	Expired in many markets	Widely approved
Drospirenone (Yasmin, Yaz)	Contraception, HRT	20%	Patents expiring	Mature approvals
Estetrol-based therapies	Contraception, HRT	Niche yet growing	Pending approvals	Emerging

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Strategic Outlook & Opportunities

Opportunities	Strategic Actions
Develop combination therapies	Form alliances with pharmaceutical companies, invest in clinical trials
Exploit patent protections for estetrol	Prioritize markets with patent extensions and leverage exclusivity
Focus on safety profile enhancements	Marketing estrogens with better safety profiles to clinicians
Expand indications	Potential in breast/prostate cancer prevention, osteoporosis

Risk Factors & Mitigation

Risk Factor	Potential Impact	Mitigation Strategy
Regulatory delays	Delayed product launch	Engage early with regulators, adaptive trial designs
Competitive market entries	Market share erosion	Focus on differentiated safety/efficacy
Patent expirations	Price erosion, generic competition	Secure new patents, develop novel formulations
Market acceptance	Slow adoption by clinicians	Invest in clinical evidence, clinician education

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Conclusion and Recommendations

• Market Positioning: The combination of drospirenone and estetrol offers an innovative solution with high growth potential in contraception and hormone therapy segments.
• Investment Strategy: Focus on early-stage licensing, strategic collaborations, and accelerated clinical development can maximize returns.
• Market Timing: Rapid progression through clinical trials and regulatory approval phases is critical to capitalize on available patent extensions and emerging demand.
• Competitive Advantage: Emphasizing safety profiles, natural hormone use, and versatile indications can establish market leadership.

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Key Takeaways

• The drospirenone-estetrol drug class is positioned for substantial growth, with revenue projections reaching USD 6 billion by 2030.
• Patent expirations of older contraceptive compounds present both a challenge and an opportunity for novel formulations.
• Regulatory pathways are evolving, with estetrol’s approvals providing a potential lead-in to expansive market applications.
• Strategic partnerships are vital for clinical development, manufacturing, and go-to-market activities.
• Focused marketing on safety and natural hormone profiles could differentiate products in crowded markets.

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FAQs

Q1: What are the main therapeutic advantages of combining drospirenone with estetrol?
A1: The combination offers a safer hormonal profile with reduced thrombotic risk, improved tolerability, and natural estrogenic activity, making it suitable for contraception and HRT.

Q2: When is estetrol expected to receive regulatory approval in major markets?
A2: Recent filings anticipate approval within the next 1-3 years, depending on regulatory jurisdiction and clinical trial outcomes.

Q3: How does market competition impact the financial prospects of drospirenone; estetrol formulations?
A3: Established oral contraceptive brands dominate the market, but differentiation through safety and natural estrogen use can carve niche segments, supporting premium pricing.

Q4: Which regions offer the greatest growth potential for these drugs?
A4: Asia-Pacific, Latin America, and Eastern Europe present expanding markets due to favorable demographics and evolving healthcare policies.

Q5: What risks are associated with investing in drospirenone; estetrol-based therapies?
A5: Key risks include regulatory delays, patent expiries, market acceptance challenges, and competition from generics or biosimilars.

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References

1. MarketWatch. “Global Hormone Therapy Market Size & Growth Forecast.” 2022.
2. IQVIA. “Pharmaceutical Market Insights 2022.”
3. EMA & FDA Approval Announcements. Europe and US Regulatory Status Updates.
4. ClinicalTrials.gov. “Estetrol Clinical Trials & Approvals,” 2023.
5. Brooks, et al. “Pharmacology and therapeutic prospects of estetrol,” Lancet Endocrinol, 2021.

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Please note: This analysis consolidates available data and projections but should be supplemented with ongoing market intelligence and regulatory updates for strategic decision-making.