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Clascoterone 5%

Phase 3

Alopecia, Androgenetic | Small molecule | Dermatology |Icon Plc|Last Updated: Mar 18, 2026

Target and mechanism

Molecular targetAR
Target classAntagonist
ModalitySmall molecule

Also known as Clascoterone 5% solution

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials2
Total Enrollment1,465

FDA Designations

No designations recorded

Clinical trial landscape

Clascoterone 5% · 2 trials · 1 indication

Phase 3 2
NCT05914805A Study to Evaluate the Efficacy and Safety of Clascoterone Solution in Treatment of Male Pattern Hair Loss (SCALP2)Alopecia, Androgenetic
COMPLETED762 Analytics
NCT05910450A Study to Evaluate the Efficacy and Safety of Clascoterone Solution in Treatment of Male Pattern Hair LossAlopecia, Androgenetic
ACTIVE NOT_RECRUITING703 Analytics
PHASE3COMPLETED
A Study to Evaluate the Efficacy and Safety of Clascoterone Solution in Treatment of Male Pattern Hair Loss (SCALP2)
Alopecia, AndrogeneticUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Evaluate the Efficacy and Safety of Clascoterone Solution in Treatment of Male Pattern Hair Loss
Alopecia, AndrogeneticUnlock trial analytics

Study Endpoints

Primary Endpoints

Changes in non-vellus Total Area Hair Count (TAHC)
6 months

Changes from Pivotal Part 1 Baseline in non-vellus Total Area Hair Count (TAHC) at Month 6.

Subject's assessment of own hair coverage
6 months

MAA-PRO item 8, a hair coverage-specific PGI-C, as the co-primary endpoint. The clinically meaningful change (threshold) is defined as a response of "1", "2", or "3". Note that the item 2 responder threshold was used as a criterion for subjects to qualify for Part 2 enrollment.

Secondary Endpoints

Changes in non-vellus TAHC
3 months
Changes in subject's assessment of satisfaction score
6 months
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Clascoterone Part 1 and Part 2EXPERIMENTALSubjects treated for 12 months with Clascoterone 5% solution (both in double-blind Part 1 and in the single-blind Part 2 of the study).
Clascoterone Part 1 + Vehicle Part 2OTHERSubjects treated for the first 6 months Part 1 in double-blind with Clascoterone 5% solution followed by 6 months Part 2 in the single-blind label with Vehicle.
Vehicle Part 1 + Clascoterone Part 2OTHERSubjects treated for the first 6 months Part 1 in double-blind with Vehicle followed by 6 months Part 2 in the single-blind label with Clascoterone 5% solution.
Vehicle Part 1 and Part 2PLACEBO_COMPARATORSubjects treated for 12 months with Vehicle (both in double-blind Part 1 and in the single-blind Part 2 of the study).

Interventions

NameTypeDescription
Clascoterone 5% solutionDRUGTopical application of 1.5 ml of clascoterone solution 5%, twice a day, to balding areas of the scalp (vertex and temples)
Vehicle solutionDRUGTopical application of 1.5 ml of vehicle, twice a day, to balding areas of the scalp (vertex and temples)
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Eligibility Criteria

Age Range18 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites27

Inclusion Criteria: Subject can participate in this clinical study if all the following criteria are met: 1. Subject who is male ≥18 years old. 2. Subject who has provided written informed consent. 3. Subject who has mild to moderate AGA in temple and vertex region, rating III vertex to V on the M...

Countries:United StatesGermanyPolandGeorgia
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Frequently asked questions about Clascoterone 5%

What is Clascoterone 5% used for?

Clascoterone 5% is an investigational small molecule being developed for the treatment of androgenetic alopecia, commonly known as male pattern hair loss. It is a topical solution intended for use in adult males. The drug is currently in Phase 3 clinical trials to evaluate its efficacy and safety for this condition.

How does Clascoterone 5% work?

Clascoterone 5% is a small molecule that acts by targeting androgen receptors in the scalp. By blocking these receptors, it is designed to counteract the effects of androgens that contribute to hair loss in androgenetic alopecia. This mechanism aims to prevent further hair thinning and promote hair regrowth in affected areas.

Who makes Clascoterone 5%?

Clascoterone 5% is being developed by Icon Plc, a company publicly traded under the ticker symbol ICLR. The company is conducting Phase 3 clinical trials to evaluate the drug's efficacy and safety for the treatment of male pattern hair loss.

What phase is Clascoterone 5% in?

Clascoterone 5% is currently in Phase 3 clinical development. It is an investigational drug and has not been approved by regulatory authorities. Two Phase 3 trials have been conducted, one of which is completed and the other is active but not recruiting participants.

What clinical trials is Clascoterone 5% in?

Clascoterone 5% is being studied in two Phase 3 trials for male pattern hair loss. NCT05910450 is active but not recruiting, with 703 participants in the United States and Georgia. NCT05914805, known as SCALP2, is completed with 762 participants in the United States, Germany, and Poland. Both are randomized, double-blind, placebo-controlled studies.

Is Clascoterone 5% the same as Clascoterone 5% solution?

Yes, Clascoterone 5% is also known as Clascoterone 5% solution. The drug is being developed as a topical solution for the treatment of androgenetic alopecia in males. Both names refer to the same investigational product currently in Phase 3 clinical trials.