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A psychosocial therapy to benefit people with Parkinson’s-related dementia (INVEST)

A psychosocial therapy to benefit people with Parkinson’s-related dementia: a feasibility and exploratory pilot study of individual cognitive stimulation therapy (INVEST)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN11455062
Enrollment
186
Registered
2016-03-18
Start date
2016-02-15
Completion date
Unknown
Last updated
2023-05-08

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

Conditions

Topic: Dementia

Interventions

Participants are randomly allocated to one of two groups: Active iCST group Each caregiver-participant dyad will receive a 10-week course of Cognitive Stimulation Therapy. This involves completing t

Sponsors

Manchester Mental Health & Social Care Trust
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Caregiver inclusion criteria: 1. Caregiver of a person with PD-MCI, PDD or DLB: Must live with or be carer for someone who has a diagnosis of PDMCI, PDD or DLB 2. Must be well enough to deliver 20 – 30 minute sessions of iCST, two or three times per week Patient inclusion criteria: 1. Must have received a diagnosis of probable PD-MCI, PDD or DLB. Diagnosis will be based on standard clinical diagnostic criteria (Emre et al, 2007; McKeith et al., 2005) determined by the referring clinician and verified by the lead applicant (IL). 2. Must be willing to participate in 20 – 30 minute sessions of iCST, two or three times per week 3. Must be well enough to participate in 20 – 30 minute sessions of iCST, two or three times per week 4. Must be stable on medication regime four weeks prior study entry

Exclusion criteria

Exclusion criteria: Caregiver exclusion criteria: 1. Not a caregiver for someone with PD-MCI, PDD or DLB 2. Cannot understand English or are non-literate 3. Severe physical illness 4. Diagnosis of dementia 5. The person being cared for meets the patient exclusion criteria Patient exclusion criteria: 1. Unwilling to participate in 20 – 30 minute sessions of iCST, two or three times per week 2. Not well enough to participate in 20 – 30 minute sessions of iCST, two or three times per week 3. Caregiver contact less than 3 time per week 4. No caregiver (or caregiver not willing) to deliver therapy and complete study assessments 5. Lives in residential care 6. Cannot understand English or are non-literate 7. Severe physical illness

Design outcomes

Secondary

MeasureTime frame
1. Apathy is measured using the Lille Apathy Rating Scale 2. Caregiver burden is measured using the Zarit Burden Interview

Primary

MeasureTime frame
1. Quality of life is measured using the Parkinson’s Disease Questionnaire-39 2. Cognitive functioning is measured using the Addenbrook’s Cognitive Examination - Revised Version

Countries

England, United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 26, 2026