NCT04104568.

Study name	Effectiveness of an online training and support program (iSupport) for informal dementia caregivers (iSupportPT).
Methods	Parallel randomised controlled trial.
Participants	Caregivers of people with dementia.
Interventions	iSupport versus education‐only e‐book.
Outcomes	‐ Caregiver burden (22‐item Zarit Burden Interview) ‐ Symptoms of depression & anxiety (14‐item HADS) ‐ Caregiver quality of life (WHOQOL‐BREF) ‐ Caregiver knowledge & skills (10‐item Generalised Self‐efficacy Scale)
Starting date	January 2020 (Estimated study completion date: January 2021).
Contact information	Soraia T Sousa, Universidade de Porto (teles.s.soraia@gmail.com). Constança Paúl, Universidade de Porto (paul@icbas.up.pt).
Notes	ClinicalTrials.gov Identifier: NCT04104568.