Method: This single-case design study involved seven parents (five mothers and two fathers) of six adolescents (aged 16–21) diagnosed with ASD and emotional dysregulation (ED). Parents received EMDR-therapy and were assessed weekly during a randomised baseline (3–5 weeks), treatment phase (4–6 weeks), post-intervention (3 weeks), and follow-ups at 6 weeks and 3 months.

Results: All parents showed a reduction of PTSD-symptoms after EMDR-therapy, with none of the parents meeting PTSD criteria after treatment and follow-up. A significant reduction in parental stress was reported by all parents at post-treatment and follow-up. Furthermore, five out of seven parents reported reduced ED in their adolescents after treatment, an effect maintained in three cases at follow-up.

Conclusions: This study demonstrates the value of trauma-focused treatment for parents coping with PTSD as a result of exposure to child-related traumatic events. The findings of this study provide valuable insights into the possible nature of parental stress in parents of adolescents with severe ED, as well as how this can be effectively addressed. The results support the hypothesis that when parents feel emotionally regulated, they may exhibit increased engagement and support for their adolescents’ treatment, potentially leading to improved treatment outcomes.

Highlights:

• Child-related traumatic events are common among parents of adolescents with ASD and emotional dysregulation.

• Time-limited EMDR-therapy reduces not only PTSD-symptoms in parents, but also parental stress and emotional dysregulation of the adolescent.”