Activity & Safety Study of KX2-391 Ointment in Participants With Actinic Keratosis on the Face or Scalp

This study was an open-label, multicenter, activity, safety, tolerability, and PK study of KX2-391 Ointment administered topically to the face or scalp of participants with AK. The study consists of Screening, Treatment, and Follow-up Periods. Eligible participants were received 3 or 5 consecutive days of topical treatment, applied at the study site. Blood samples for PK analysis were collected. Activity (lesion counts) and safety evaluations were performed.