Acetic Acid 2% Solution for Skin Ulcers

The objective of this clinical trial is to assess the effectiveness of acetic acid in patients suffering from chronic cutaneous ulcers with biofilm. The primary question it seeks to address is whether acetic acid (as a 2% topical solution) is superior to the current standard treatment for chronic cutaneous ulcers with biofilm at our center (Prontosan®). Participants will be randomly assigned to receive either the acetic acid solution treatment or the standard current treatment.

Inclusion Criteria: * Patients over 18 years of age. * Continued care (hospital or outpatient) in one of the Consorci Sanitari Alt Penedes i Garraf (CSAPG) units. * Presence of a cutaneous ulcer with biofilm, with an area of less than 120 cm2, and in any location (except the facial region). * Plan to undergo treatment and follow-up of the lesion (at least 8 weeks) at the study center. * Ability to cooperate in necessary evaluations. * Informed consent for inclusion in the study, either from the participant themselves or from their legal representative. Exclusion Criteria: * Participants diagnosed with any of the following conditions: 1. Ulcers with exposed bone tissue. 2. Neoplastic-origin ulcers. 3. Ulcers lasting more than 18 months. * Participation in another clinical trial involving an experimental intervention during the period of the current trial and/or establishing a visit frequency incompatible with the current trial.