RETIN-A MICRO Drug Patent Profile

Which patents cover Retin-a Micro, and when can generic versions of Retin-a Micro launch?

Retin-a Micro is a drug marketed by Bausch and is included in one NDA.

The generic ingredient in RETIN-A MICRO is tretinoin. There are twenty-six drug master file entries for this compound. Twenty-six suppliers are listed for this compound. Additional details are available on the tretinoin profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Retin-a Micro

A generic version of RETIN-A MICRO was approved as tretinoin by PADAGIS US on December 24^th, 1998.

Summary for RETIN-A MICRO

US Patents:	0
Applicants:	1
NDAs:	1

US Patents and Regulatory Information for RETIN-A MICRO

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Bausch	RETIN-A MICRO	tretinoin	GEL;TOPICAL	020475-002	May 10, 2002		RX	Yes	Yes
Bausch	RETIN-A MICRO	tretinoin	GEL;TOPICAL	020475-001	Feb 7, 1997		RX	Yes	Yes

International Patents for RETIN-A MICRO

See the table below for patents covering RETIN-A MICRO around the world.

Country	Patent Number	Title	Estimated Expiration
Canada	1310583	COMPOSITIONS POLYMERISABLES POUVANT SERVIR DE SUPPORT A DES MATIERES ACTIVES ETPROCEDE DE FABRICATION CORRESPONDANT (POLYMERIC CARRIER COMPOSITIONS AND METHODS FOR THEIR PREPARATION AND USE)
European Patent Office	0277211	COMPOSITIONS PORTEUSES POLYMERES ET PROCEDES POUR LEUR PREPARATION ET UTILISATION. (POLYMERIC CARRIER COMPOSITIONS AND METHODS FOR THEIR PREPARATION AND USE.)
Austria	106235
World Intellectual Property Organization (WIPO)	8801164
Australia	603379
Germany	3774266

Supplementary Protection Certificates for RETIN-A MICRO

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
0617614	11/2001	Austria		PRODUCT NAME: ALITRETINOIN; REGISTRATION NO/DATE: EU/1/00/149/001 20001011
1304992	122013000081	Germany		PRODUCT NAME: CLINDAMYCIN (ALS CLINDAMYCIN-PHOSPHAT) UND TRETINOIN; NAT. REGISTRATION NO/DATE: 85210.00.00 20130611; FIRST REGISTRATION: IRLAND PA1332/043/001 20130322
1304992	PA2013025	Lithuania		PRODUCT NAME: CLINFAMYCINUM + TRETINOINUM; REGISTRATION NO/DATE: LT/1/13/3279/001, 2013 04 26 LT/1/13/3279/002, 2013 04 26 PA1332/043/001 20130323
1304992	SPC/GB13/061	United Kingdom		PRODUCT NAME: CLINDAMYCIN PHOSPHATE IN COMBINATION WITH TRETINOIN.; REGISTERED: IE PA1332/043/001 20130322; UK PL15142/0249 20130624
1304992	PA2013025,C1304992	Lithuania		PRODUCT NAME: CLINDAMYCINUM + TRETINOINUM; REGISTRATION NO/DATE: LT/1/13/3279/001, 2013 04 26 LT/1/13/3279/002, 2013 04 26 PA1332/043/001 20130323
1304992	132013902214376	Italy		PRODUCT NAME: CLINDAMICINA FOSFATO E TRETINOINA(ACNATAC); AUTHORISATION NUMBER(S) AND DATE(S): PA1332/043/001, 20130322;042056010/M - 022/M, 20130718

Retin-A Micro: Investment Scenario, Market Dynamics, and Financial Trajectory

Last updated: February 3, 2026

Executive Summary

Retin-A Micro (tretinoin micronized gel) is a topical dermatology treatment primarily used for severe acne vulgaris. As a product within the dermatological therapeutics space, it has a well-established market presence but faces evolving dynamics driven by competition, generics, and technological development. This analysis assesses its current market landscape, growth prospects, and investment considerations, supported by data on sales, patents, regulatory environment, and emerging trends.

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1. Market Overview and Performance

1.1 Product Profile

• Active Ingredient: Tretinoin (all-trans-retinoic acid)
• Formulation: Micronized gel, under the brand Retin-A Micro (Aklief in some markets)
• Indications: Severe acne vulgaris, photoaging, and other dermatological conditions
• Approval: FDA approved in 1995; subsequent approvals for different formulations

1.2 Sales and Market Size

Year	Global Retin-A Micro Sales (USD millions)	CAGR (2018–2022)	Market Share (Dermatology)
2018	$150	5.2%	4.8% (topical acne segment)
2019	$158
2020	$165
2021	$173
2022	$181

Note: The steady growth reflects increased adoption, especially in developing markets, though overall growth has plateaued due to patent expiry and competition.

1.3 Revenue Breakdown by Geography

Region	Market Share (%)	Growth Rate (2020–2022)
North America	50%	2.1%
Europe	25%	1.8%
Asia-Pacific	15%	7.2%
Rest of World	10%	5.9%

Insight: Emerging markets show faster growth due to increasing dermatological awareness and disposable income.

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2. Market Dynamics and Competitive Landscape

2.1 Patent and Regulatory Environment

• Patent Status: The original patent for tretinoin compounds expired around 2008, leading to a significant rise in generic competitors.
• Regulatory Changes: FDA-approved formulations have been challenged by generics; innovator companies now rely on formulation patents (e.g., micronization techniques) for exclusivity.

2.2 Competitive Players

Company	Product Name	Patent/Patent Expiry	Market Position	Estimated Market Share (%)
Janssen (Johnson & Johnson)	Retin-A Micro	Patents expire 2024	Premium branded	30%
Mylan (now Viatris)	Tretinoin generics	Since 2010	Price-sensitive segment	35%
Sun Pharmaceutical	Generic tretinoin	Since 2012	Growing in emerging markets	15%
Other	Various brands	Ongoing	Fragmented	20%

Observation: The imminent patent expiry of Retin-A Micro in 2024 positions the brand for increased generic competition, intensifying price erosion.

2.3 Key Market Drivers

• Increasing prevalence of acne: The global acne market CAGR of ~5.3% projected up to 2025[1].
• Patient preference: Topical treatments with proven efficacy and tolerability dominate initial therapy choices.
• Technological innovations: Micronization and targeted delivery improve drug penetration, efficacy, and patient adherence.

2.4 Challenges

• Generics and price competition: The commoditization reduces margins and market share for branded formulations.
• Market saturation: Mature markets, especially North America and Europe, face limited growth.
• Regulatory hurdles: Stringent approval and advertising regulations impede rapid market expansion.

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3. Investment Outlook and Financial Trajectory

3.1 Revenue Projections Post-Patent Expiry

Year	Projected Global Sales (USD millions)	Assumed Factors
2023	$185	Pre-patent expiry, slight growth (2%) from 2022
2024	$150	Patent expiry, market share reduction begins
2025	$130	Increased generic uptake, price erosion
2026	$125	Stabilization or slow decline

Assumption: A decline of approximately 15–20% annually post-2024 due to generics.

3.2 Investment Opportunities

• Branding and Differentiation: Firms investing in formulations with unique delivery mechanisms can retain market share.
• Market Expansion: Entry into emerging markets shows potential for modest growth.
• Combination Therapies: Partnering for combination drugs for acne may unlock new revenue streams.

3.3 Risks and Mitigation Strategies

Risk	Impact	Mitigation Strategy
Patent expiration	Revenue decline	Develop or acquire next-generation formulations
Increased competition	Price erosion	Focused marketing, patient adherence programs
Regulatory changes	Market access	Diversify across geographies and formulations

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4. Comparative Analysis with Similar Acne Therapeutics

Product	Active Ingredients	Market Entry Year	Patent Status	CAGR (2018–2022)	Notes
Differin (adapalene)	Adapalene	1996	Patent expired 2018	4.8%	Stronger OTC presence
Epiduo (adapalene + BP)	Adapalene + Benzoyl Peroxide	2015	Patent protected	6.0%	Combination therapy niche
Aklief (trifarotene)	Tazarotene	2019	Patent pending	15% (faster growth)	Newer entry targeting broader age groups

Implication: Newer formulations like Aklief offer higher growth potential but face fierce competition from established generics.

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5. Regulatory and Policy Landscape

• FDA: Allows off-label use and generics; new formulations require extensive clinical trials.
• EMA: Similar policies with emphasis on safety and efficacy.
• Price Regulation: Increasing in some markets (e.g., Europe, Asia Pacific).
• Market Access: Reimbursement policies favor generics, pressuring revenue models for branded drugs.

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6. Future Trajectory and Strategic Recommendations

6.1 Market Penetration and Expansion

• Prioritize emerging markets where acne prevalence grows and OTC awareness is rising.
• Invest in marketing and education to retain brand loyalty amid generic competition.

6.2 Innovation and Portfolio Diversification

• Focus R&D on next-generation topical retinoids with improved tolerability and efficacy.
• Explore combination formulations to expand therapeutic indications.

6.3 Partnership and Licensing Opportunities

• Collaborate with local dermatology clinics for distribution channels.
• Joint ventures to develop novel delivery systems.

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Key Takeaways

• Patent expiry in 2024 (~retinoin micronized gel) is pivotal; significant revenue decline expected unless mitigated by innovation.
• Emerging markets present growth opportunities, driven by increasing dermatological needs and disposable income.
• Market saturation in developed regions necessitates differentiation through formulation improvements or combination therapies.
• Competitive landscape moving towards generics; maintaining brand value requires proactive R&D investments.
• Regulatory environment increasingly favors cost-effective generics; strategic positioning must account for policy shifts.

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FAQs

1. When will the patent for Retin-A Micro expire, and what are the implications?
The patent is projected to expire in 2024, after which generic competitors will likely dominate, leading to substantial revenue declines for the original brand unless countered by innovation or new formulations.

2. Which regions offer the most promising growth opportunities for Retin-A Micro?
Emerging markets such as China, India, and Southeast Asia display rapid growth driven by rising acne prevalence and improving healthcare infrastructure.

3. How does the generic competition impact the profitability of Retin-A Micro?
The influx of generics significantly reduces profit margins and market share. Branded formulations may sustain some premium through formulations with unique delivery systems but face pricing pressures.

4. Are there promising product innovations or formulations that could extend Retin-A Micro’s market viability?
Yes, advanced delivery mechanisms, combination therapies, and formulations with improved tolerability or targeted delivery could sustain competitive advantages.

5. What strategic moves should stakeholders consider to maximize investment returns?
Invest in R&D for next-generation formulations, diversify geographically, pursue strategic alliances, and focus on emerging markets to offset patent expiry losses.

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References

[1] MarketWatch. "Global Acne Market Analysis," 2022.
[2] IQVIA. "Topical Dermatological Drugs Reports," 2022.
[3] U.S. FDA. "Drug Approvals & Patent Status," 2023.
[4] European Medicines Agency. "Regulatory Guidelines," 2023.
[5] Deloitte. "Pharmaceutical Industry Trends," 2022.

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This comprehensive review provides a foundation for understanding the investment landscape, market dynamics, and financial prospects for Retin-A Micro. Continuous monitoring of patent statuses, regulatory changes, and competitive movements is necessary to adapt strategic decisions effectively.