Treatment considerations in actinic keratosis

Area of Science:

• Dermatology
• Oncology
• Skin Cancer Research

Background:

• Actinic keratosis (AK) is a chronic skin condition resulting from prolonged sun/UV exposure.
• AK lesions can persist and potentially progress to squamous cell carcinoma (SCC).
• Predicting AK progression is challenging, necessitating treatment of both visible lesions and subclinical damage (field cancerization).

Purpose of the Study:

• To review current actinic keratosis (AK) treatment options.
• To focus on patient-applied field therapies for AK.
• To assess treatment suitability based on disease characteristics and patient needs.

Main Methods:

• Review of available AK treatment modalities.
• Focus on lesion-directed vs. field-directed therapies.
• Evaluation of patient-applied field therapies for efficacy, tolerability, and adherence.

Main Results:

• Field-directed therapies treat clinical and subclinical AK damage, achieving high clearance rates.
• These therapies may reduce the risk of progression to squamous cell carcinoma (SCC).
• Patient-applied field therapies require consideration of application site, duration, surface area, and tolerability.

Conclusions:

• Individualized AK treatment selection depends on lesion-, patient-, and treatment-related factors.
• There is a need for field therapies with short treatment durations and mild, predictable skin reactions for large areas.
• Shorter, simpler treatment courses improve patient adherence and may be more suitable for certain patients.