NCT04550975.

Study name	Feasibility Randomised Controlled Trial (RCT) of Advanced Cognitive Stimulation Therapy (ACST) for people with moderate to severe dementia
Methods	RCT
Participants	People with severe dementia (SMMSE 5‐12); DSM‐IV criteria
Interventions	ACST (planned sample size 16) Treatment‐as‐usual (planned sample size 16)
Outcomes	Cognition: SMMSE Quality of life: QoL‐AD Communication: Holden Communication Scale Behaviour that challenges: NPI Engagement: Group Observational Measurement of Engagement Tool Overall well‐being: Adapted Greater Cincinnati Chapter Well‐Being Observation Tool
Starting date	01/03/2021
Contact information	University College London: Dr E Hui esther.hui.19@ucl.ac.uk
Notes	14 group sessions, twice weekly for 7 weeks