Family-systems interventions for families of people with an intellectual disability or who are autistic: a systematic review.

Hopkins et al. (2023) hunted for every paper that tested family-systems therapy for families who have a child with autism or intellectual disability.

They kept only studies that measured family-level outcomes like stress, coping, or harmony. Thirteen small studies made the cut.

All thirteen studies said the therapy helped families feel better or get along better. None were strong enough to prove cause-and-effect.

The authors call the results ‘promising mush’—nice stories, but no hard evidence.

Hsieh et al. (2014) and Morgan (1988) had already argued that autism shakes the whole family system. Hopkins et al. (2023) finally checks whether family-level treatments work, answering that older plea.

Amanollahi et al. (2025) zoomed in on one slice—how parents bend their own rules around anxious autistic kids. Their 2025 review shows high ‘family accommodation,’ a stressor that family-systems therapy might target. Hopkins et al. (2023) adds hope that treating the whole system could lower that stress.

Benallal et al. (2026) looked at fetal-alcohol families and also saw parent-training help. Together these two 2026 and 2023 reviews say ‘family help helps’ across different disabilities, but both beg for bigger, better trials.

You can talk up family-systems work with caregivers, but don’t oversell it. Use it as an extra tool while we wait for solid RCTs. Track parent stress and sibling strain as outcomes, not just child behavior. If a family asks for ‘something for all of us,’ try a manualized program and collect your own data so you add to the evidence instead of guessing.