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ACT for People With Dementia Experiencing Psychological Distress

Acceptance and Commitment Therapy (ACT) for People With Dementia Experiencing Psychological Distress: a Hermeneutic Single Case Efficacy Design (HSCED) Series

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04630912
Enrollment
6
Registered
2020-11-16
Start date
2021-01-20
Completion date
2022-07-22
Last updated
2022-08-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acceptance and Commitment Therapy, Dementia

Keywords

Dementia, Psychological distress, Psychological therapy, ACT, Acceptability, HSCED

Brief summary

Introduction: People with dementia have a high prevalence of psychological distress but are under-served with evidence-based psychological interventions. To promote choice and improve clinical outcomes, there is a necessity to test different psychological intervention options for this population. Purpose: To investigate the effectiveness and acceptability of Acceptance and Commitment Therapy (ACT) for people with dementia, considering carer-supported, remote delivery and necessary therapy adaptations. Methods: A hermeneutic single case efficacy design (HSCED) series was used to analyse therapy process and change for three clients with dementia and psychological distress. Quantitative and qualitative data was collated ('rich case records') and analysed by three independent psychotherapy experts ('judges') who determined the outcome for each client. Results: Over the course of therapy, it was concluded that one client with dementia made positive changes, specifically reliable reductions in psychological distress, which were largely attributable to Acceptance and Commitment Therapy (ACT). Two clients remained unchanged. Discussion/Conclusion: Where change was achieved, the ACT-specific processes of values, committed action and acceptance, in combination with non-specific therapy factors including a strong client-carer relationship, existing client interests and individualised therapy adaptations, were facilitative of change. Hence, ACT may be feasible and effective by helping carers to better meet the needs of their loved ones with dementia. Future research to optimise ACT delivery in this population may be beneficial. Furthermore, the assessment of carer factors (e.g., their psychological flexibility, the client-carer relationship) may strengthen the evidence-base for systemic ACT-use.

Interventions

OTHERAcceptance and Commitment Therapy

There is no specific protocol for ACT with dementia, therefore a published ACT protocol, 'Better Living with Illness' (Brassington et al., 2016), will be used flexibly to guide the intervention.

Sponsors

Nottinghamshire Healthcare NHS Trust
CollaboratorOTHER_GOV
University of Nottingham
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Hermeneutic single case efficacy design (HSCED) series

Eligibility

Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Inclusion criteria for people with dementia Participants were included in the study if they had: * A clinical diagnosis of dementia (any type) * A clinically significant level of psychological distress (a score of ≥8 on the GAD-7 and ≥10 on the PHQ-9). * Ability to give informed consent Inclusion criteria for caregiver of person with dementia Participants were included in the study if they: * Cared for someone with a clinical diagnosis of dementia (any type) * Were paid or unpaid and regularly supported them with activities of daily living * Aged 18+ (no maximum age limit) * Able to give informed consent

Design outcomes

Primary

MeasureTime frameDescription
Change in anxietyThrough study completion, up to 24 weeksGeneralised anxiety disorder questionnaire (GAD-7), scored 0-21, where higher scores indicate a greater severity of anxiety.
Change in depressionThrough study completion, up to 24 weeksPatient health questionnaire (PHQ-9), scored 0-27, where higher scores indicate a greater severity of depression.

Secondary

MeasureTime frameDescription
Change in psychological flexibilityThrough study completion, up to 24 weeksComprehensive assessment of Acceptance & Commitment Therapy (CompACT-SF), scored 0-48, where higher scores indicate increased psychological flexibility.
Change in wellbeingThrough study completion, up to 24 weeksShort Warwick-Edinburgh Mental Wellbeing Scale (SWEMWS), scored 7-35, where higher scores indicate higher mental wellbeing.
Change in client problemsThrough study completion, up to 24 weeksPersonal questionnaire (PQ), where higher scores indicate greater severity of problems.
Change in therapeutic allianceThrough study completion, up to 12 weeksSession rating scale (SRS), does not involve numerical values but asks clients to mark on a line nearest to the description that best fits their experience (marks further towards the right indicate better therapeutic alliance).

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026