Lay summary
Estimates suggest that one in 40 children in New Zealand are autistic. Caregivers of autistic children often experience a reduced sense of competence and wellbeing; perpetuated by a deficit-framing of autism. Empirical research highlights the benefit of early support for child and caregiver wellbeing. However, increased identification of autism, a lack of professional training, and systemic barriers have limited access to evidence-based, autism-specific support. This research addresses these challenges by co-designing and evaluating: (1) the effectiveness and acceptability of a digitally-delivered, neuro-affirming support, focused on the wellbeing of autistic children and their caregivers; (2) the effectiveness and acceptability of a digitally delivered professional development programme designed to upskill healthcare professionals who support autistic children; and (3) the feasibility and acceptability of these supports when delivered in the community by healthcare providers. Outcomes will provide evidence of a transformative model of accessible and equitable support and knowledge translation.