Last Updated: June 10, 2026

Clascoterone - Generic Drug Details


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What are the generic sources for clascoterone and what is the scope of freedom to operate?

Clascoterone is the generic ingredient in one branded drug marketed by Sun Pharm and is included in one NDA. There are eight patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Clascoterone has ninety-four patent family members in thirty countries.

One supplier is listed for this compound.

Summary for Clascoterone
International Patents:94
US Patents:8
Tradenames:1
Applicants:1
NDAs:1
Finished Product Suppliers / Packagers: 1
Raw Ingredient (Bulk) Api Vendors: 51
Clinical Trials: 15
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for Clascoterone
What excipients (inactive ingredients) are in Clascoterone?Clascoterone excipients list
DailyMed Link:Clascoterone at DailyMed
Recent Clinical Trials for Clascoterone

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

SponsorPhase
Narrows Institute for Biomedical ResearchPHASE2
Sun Pharmaceutical Industries LimitedPHASE2
University of PennsylvaniaPHASE2

See all Clascoterone clinical trials

Pharmacology for Clascoterone
Paragraph IV (Patent) Challenges for CLASCOTERONE
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
WINLEVI Cream clascoterone 1% 213433 1 2024-08-26

US Patents and Regulatory Information for Clascoterone

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Sun Pharm WINLEVI clascoterone CREAM;TOPICAL 213433-001 Aug 26, 2020 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sun Pharm WINLEVI clascoterone CREAM;TOPICAL 213433-001 Aug 26, 2020 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Sun Pharm WINLEVI clascoterone CREAM;TOPICAL 213433-001 Aug 26, 2020 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Sun Pharm WINLEVI clascoterone CREAM;TOPICAL 213433-001 Aug 26, 2020 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Sun Pharm WINLEVI clascoterone CREAM;TOPICAL 213433-001 Aug 26, 2020 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

International Patents for Clascoterone

Country Patent Number Title Estimated Expiration
Slovenia 2503005 ⤷  Start Trial
Canada 2871025 PROCEDE ENZYMATIQUE POUR OBTENIR DES 17 ALPHA-MONOESTERS DE CORTEXOLONE ET/OU SES DERIVES 9,11-DESHYDRO (ENZYMATIC PROCESS FOR OBTAINING 17 ALPHA-MONOESTERS OF CORTEXOLONE AND/OR ITS 9,11-DEHYDRODERIVATIVES) ⤷  Start Trial
Norway 2025055 ⤷  Start Trial
Mexico PA04001274 ESTERES DE 17 ALFA, 21-DIHIDROXIPREGNENO COMO AGENTES ANTIANDROGENICOS. (17ALFA, 21-DIHYDROXYPREGNENE ESTERS AS ANTIANDROGENIC AGENTS.) ⤷  Start Trial
Spain 2462946 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for Clascoterone

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
2503005 301358 Netherlands ⤷  Start Trial PRODUCT NAME: CLASCOTERON; REGISTRATION NO/DATE: EU/1/25/1927 20251021
2503005 C20250037 Finland ⤷  Start Trial
2503005 854 Finland ⤷  Start Trial
2503005 2025C/551 Belgium ⤷  Start Trial PRODUCT NAME: CLASCOTERON EN KRISTALLIJNE VORMEN DAARVAN; AUTHORISATION NUMBER AND DATE: EU/1/25/1927 20251021
2503005 CA 2025 00047 Denmark ⤷  Start Trial PRODUCT NAME: CLASCOTERONE AND CRYSTALLINE FORMS THEREOF; REG. NO/DATE: EU/1/25/1927 20251017
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description
Last updated: June 3, 2026

Clascoterone Market Dynamics and Financial Trajectory (2026): Sales Outlook, Competition, and Exclusivity Risk

Clascoterone is still in the “commercialization ramp” phase rather than a mature, price-discovery market. Public financial disclosure for clascoterone-specific sales is limited, and portfolio-wide reporting by its developer is the dominant source for market inference. The key swing factors for near-to-midterm financial trajectory are (1) launch timing and uptake by payer and dermatology channels, (2) competitive intensity from topical acne and androgen-pathway dermatology products, and (3) exclusivity durability around the drug substance and formulation.

Bottom line: clascoterone’s revenue path is most sensitive to formulary penetration and persistence in acne-grade endpoints (lesion reduction and tolerability), with exclusivity-driven generic entry risk emerging only after patent and regulatory exclusivity windows close. Without verified clascoterone-specific revenue reporting, any numeric market sizing would be speculative.


What is clascoterone’s current market position and how fast is it scaling?

Commercial stage: launch ramp vs. mature revenue

Clascoterone is a topical androgen receptor (AR) inhibitor class asset for dermatology indications, with commercial dynamics driven by:

  • Dermatology prescribing via dermatology clinics and retail scripts
  • Formulary status in commercial and Medicaid managed care
  • Patient adherence to topical regimens and tolerability profiles
  • Label expansion, if any, that broadens payer coverage

Primary KPIs that determine financial trajectory

For topical dermatology brands, the revenue trajectory is typically governed by:

  • New-to-brand prescriptions per prescriber per month (channel growth)
  • Refill rate and treatment persistence (retention)
  • Net price via rebates and discounting (gross-to-net conversion)
  • Share stability after competitor launches (volume resilience)

How payer mechanics reshape early revenue

Topical drugs in acne and related dermatology segments face payer pressure through:

  • Step edits (preferred products) and PA requirements
  • PBM rebates tied to formulary placement
  • Brand substitution incentives at pharmacy level

Implication for clascoterone: early gross sales can materially diverge from net sales if rebates and formulary access lag.


What drives net sales for clascoterone: pricing, rebates, channel mix, and adherence?

Pricing and gross-to-net

Topical dermatology brands often see:

  • Discounting and rebates as formularies evolve
  • Higher rebates in classes with multiple therapeutics of comparable outcomes

Financial impact: even with stable unit growth, net revenue can underperform if the product loses formulary leverage or if PBM contracting tightens.

Channel mix

Clascoterone uptake typically depends on:

  • Retail pharmacy penetration vs. specialty distribution (most dermatology topicals are retail)
  • Provider concentration (derm groups vs. primary care referral pipelines)

Adherence and tolerability as financial levers

Topical AR pathway inhibitors can be adherence-sensitive due to:

  • Irritation risk
  • Regimen complexity
  • Patient expectations on onset of action

Financial impact: adherence determines refill and persistence, which drives revenue beyond initial patient acquisition.


How does competition in topical acne and dermatology affect clascoterone’s revenue trajectory?

Competitive set dynamics

Clascoterone’s revenue path is shaped by three competitor buckets:

  1. Topical acne standards (retinoids, benzoyl peroxide combinations, topical antibiotics where applicable)
  2. Newer androgen-pathway or acne-modulating agents
  3. Combination and vehicle-optimized products that can win on tolerability and dosing simplicity

What tends to happen to market share after new entrants

Topical derm markets usually show:

  • Early displacement when new entrants win tolerability or faster symptom response
  • Gradual stabilization once payer contracts set rebate ceilings

Implication for clascoterone: the first 12 to 24 months post-launch typically reveal whether it becomes “preferred” or remains “non-preferred,” a key determinant for durable revenue.


When does clascoterone lose exclusivity, and what does that mean for generic and price erosion?

Exclusivity drivers

For a small-molecule topical drug, the practical exclusivity endgame generally depends on:

  • Composition-of-matter patent expiration (drug substance)
  • Formulation/vehicle patents (product-specific exclusivity protection)
  • Method-of-use patents (if claimed)
  • Regulatory exclusivities (data exclusivity, pediatric exclusivity where applicable)

Generic entry risk framework

Generic entry typically accelerates price erosion when:

  • Orange Book listings include only a narrow set of patents, or
  • Generic applicants file early (Paragraph IV) with patent challenges that force settlements or carve-outs
  • Settlement terms allow “at-risk” or earlier launch dates than patent expiration

Implication for financial trajectory: clascoterone’s mid-to-late forecast must be anchored to patent-by-patent exclusivity calendars rather than to class-level expectations.


What Orange Book status applies to clascoterone, and how many patents are likely listed?

Featured-snippet answer: clascoterone’s Orange Book status is determinative for generic timing because each listed patent becomes a potential Paragraph IV target.

Patent-listing structure that matters commercially

The commercial forecast should separate:

  • Drug substance patents (often drive earliest real generic vulnerability)
  • Drug product/formulation patents (can delay substitution if generics must change vehicle)
  • Method-of-use patents (can constrain labeling-based generic launches)

Note: Specific Orange Book patent counts, listed expiration dates, and assignees are required for a rigorous exclusivity timeline; those details are not provided in the available input.


What patent estate protects clascoterone formulations and product performance?

Typical formulation patent scope for topical acne drugs

Formulation patents for topical dermatology assets often cover:

  • Vehicle composition (solvent system, emulsifier)
  • Penetration enhancers
  • Stabilizers and shelf-life-related components
  • Dosage unit and container closure system
  • Manufacturing process controls

How formulation protection changes generic launch risk

If generics must materially change formulation to avoid infringement, they can face:

  • Longer development timelines
  • Additional bioequivalence or bridging studies
  • Increased likelihood of non-interchangeable product characterization

Implication for financial trajectory: robust formulation protection can extend brand premium and reduce near-term volume loss.


What method-of-use patents could restrict label-based generic competition for clascoterone?

Method-of-use coverage mechanics

Method-of-use patents can slow generic competition even where composition-of-matter protection expires by:

  • Limiting the FDA label to specific treatment regimens
  • Conditioning labeling on patient selection or dosing schedules
  • Triggering carve-outs or “skin-of-label” settlement constraints

Implication: label constraints can delay effective substitution at the prescribing level, protecting net sales longer than substance-only exclusivity would imply.


Has any clascoterone-related Paragraph IV litigation occurred, and how does it affect expected launch timing?

Paragraph IV outcomes that matter financially

Litigation outcomes translate into revenue timing via:

  • Stay duration and trigger dates
  • Final judgment dates
  • Settlement “licensed launch” dates or irrevocable dismissal agreements
  • Scope of permitted generic labeling (carve-outs)

Settlement structure commonly seen in topical dermatology

Settlement terms often specify:

  • Launch timing relative to patent expiry
  • Market entry territory (if any)
  • Labeling changes and product presentation restrictions
  • Royalty and/or indemnity structures

Implication for clascoterone: any Paragraph IV campaign would rebase the financial trajectory by changing the effective date of generic pressure.


What biosimilar risk exists for clascoterone?

Direct answer: biosimilar risk is not applicable to clascoterone because it is a small-molecule topical drug, not a biologic.

Competitive risk analogue

The relevant analogs are:

  • ANDA generics
  • Authorized generics
  • Licensing arrangements that permit controlled early entry

How does clascoterone compare with competing topical AR-pathway or acne assets on market access?

Comparison dimensions that drive monetization

Clascoterone’s competitive performance should be benchmarked on:

  • Formulary access and tier placement
  • Prescriber adoption and patient conversion rate
  • Net price after rebates
  • Persistence and discontinuation rate

Why formulary wins can dominate clinical differentiation

In topical dermatology, payer placement often dictates:

  • Volume growth more than incremental efficacy differences once a threshold is met
  • Prescription routing to preferred brands during new-to-brand evaluation cycles

What geographic markets matter most for clascoterone, and where is revenue likely highest?

Geographic exposure typically leads with the US

For most dermatology launches, early financial trajectories skew toward:

  • US commercialization via FDA-approved labeling and retail distribution
  • EU and other markets later based on country-specific HTA and reimbursement workflows

Regulatory and pricing differences

Even with approved product in multiple markets, net revenue varies by:

  • Health technology assessment (HTA) outcomes
  • Tender mechanisms
  • Reimbursement caps and therapeutic reference pricing

Implication: the financial trajectory depends on reimbursement velocity in each geography, not on regulatory approval alone.


What manufacturing and IP barriers could constrain generic entry for clascoterone?

Manufacturing/IP constraints that delay generics

Generic developers may be blocked by:

  • Formulation-specific process steps
  • Proprietary manufacturing controls
  • Patented packaging or delivery mechanism
  • Stability constraints tied to the vehicle

How that translates to sales protection

If generic timelines slip, the brand benefits from:

  • Extended demand capture
  • Reduced competitive price pressure
  • More time to expand indications or line extensions

Revenue exposure and forecast ranges: what outcomes should investors model?

Because verified clascoterone-specific financial disclosures are not provided in the input, the correct modeling approach is scenario-based:

Three revenue scenarios to model

  1. Preferred-listing scenario: faster formulary uptake yields stronger net sales and slower margin compression.
  2. Non-preferred scenario: slower payer access limits unit growth and increases rebate pressure.
  3. Exclusivity disruption scenario: earlier-than-expected generic or authorized generic entry compresses price and volumes.

Key forecast sensitivities

  • Time to achieve preferred formulary placement
  • Gross-to-net percentage trajectory
  • Rate and timing of new entrant or generic adoption after exclusivity windows end

Key Takeaways

  • Clascoterone’s financial trajectory is driven less by broad class dynamics and more by dermatology payer access, net pricing, and patient persistence.
  • Exclusivity durability across substance, formulation, and method-of-use patents determines the date and intensity of generic price erosion.
  • Paragraph IV outcomes, if present, can rebase launch timing and should be incorporated into any credible mid-term revenue model.
  • Generic and biosimilar risk profiles differ: generics (ANDAs) are the relevant threat; biosimilars are not.

FAQs

  1. What are the biggest determinants of net sales for topical dermatology products like clascoterone?
  2. How do formulary tier placement and prior authorization change prescription volume for acne drugs?
  3. What patent categories most often extend protection for topical formulations beyond composition-of-matter?
  4. How do Paragraph IV settlements typically affect effective generic launch dates?
  5. What scenario assumptions best model revenue risk for small-molecule topical brands ahead of exclusivity expiry?

References (APA)

No citable sources were provided in the input, and none can be inserted without risking fabrication.

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