From the Benchtop to the Treatment Room: Important Questions Answered About Topical Clascoterone

In this episode of Derms and Conditions, host James Q. Del Rosso, DO, is joined by Zoe Draelos, MD, for an in-depth discussion of 3 practical questions surrounding topical clascoterone, informed by studies Dr Draelos helped conduct. Together, they translate study findings into real-world considerations for using clascoterone as part of combination acne regimens.

The conversation begins with the role of formulation and vehicle design, addressing a common concern in acne management: barrier disruption and application-site irritation. Unlike retinoids or benzoyl peroxide, clascoterone is an androgen receptor inhibitor formulated in a vehicle shown to sustain and slightly increase moisture content in the skin, supporting  barrier function while remaining compatible with other topical acne therapies. Data evaluating transepidermal water loss and corneometry demonstrate that the finished, marketed formulation sustains skin moisturization, reinforcing its barrier-friendly profile.

The discussion then turns to real-world use, where clascoterone is frequently combined with other topical agents. An admixture stability study examined whether clascoterone degrades, or causes degradation of, commonly used acne treatments such as benzoyl peroxide, clindamycin, adapalene, and retinoids. Using chromatographic and mass spectrometric analysis, the study confirmed that clascoterone remains stable and compatible when layered with these agents.

Finally, Dr Draelos reviews clinical data demonstrating progressive sebum reduction in patients with mild to moderate acne, measured using standardized sebumeter technology. Sebum levels decreased beginning around 12 weeks and continued to decline through 52 weeks, paralleling reductions in acne lesions, oily appearance, and visible pore size. Together, these findings clarify how clascoterone works at the target organ level and why its clinical benefits extend over time.

Tune in to the episode to hear how these studies answer key mechanistic and practical questions about clascoterone, and how its barrier-friendly formulation, combination compatibility, and sustained sebum reduction may inform everyday acne management in clinical practice.