Aim: To evaluate the effects of a psychoeducational intervention compared with an education programme to strengthen quality of life, psychosocial adjustment, and coping in people with Parkinson's disease and their informal caregivers. Design: A quasi‐experimental study was performed with repeated measures at baseline, after the intervention and 6 months post‐intervention. Methods: The study was carried out at seven primary care centres from 2015‐2017.