[Abstract] Children with autism spectrum disorder (ASD) experience moderate to profound challenges in relation to the skills required for social participation. Animal-assisted intervention (AAI) is increasingly used within early community care. However, the results of its early application in this population group are not known. This pilot study aimed to explore the feasibility of an early intervention based on the use of therapy dogs and to examine their impact on communication and social interaction skills. A within-subject quasi-experimental longitudinal design was used. The instruments for measuring results were the Assessment of Communication and Interaction Skills (ACIS) and Animal-assisted Therapy Flow Sheet, both based on observatio...