ClinicalTrials.gg
CompletedNCT05127057PRIME-RCTUpdated Sep 29, 2025

Proactive and Integrated Management and Empowerment in Parkinson's Disease (PRIME-UK): A New Model of Care (PRIME-RCT)

An interventional study of PRIME Parkinson Care and Usual Care in Parkinsonism, sponsored by University of Bristol. Completed at 1 site in United Kingdom. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-09-29.

Primary conditionParkinson DiseaseRegistry: Parkinsonian DisordersReclassifiedWhy we changed it
Registry
Parkinsonian Disorders — the first condition term the registry derived for this study.
ClinicalTrials.gg
Parkinson Disease
Why
  1. The study's title name Parkinson Disease, a narrower term within Parkinsonian Disorders.
Confidence
High: the new condition is named in the study's own title. Of 46 hand-checked studies reclassified this way, 72% were exactly right and 89% in the right disease family; the registry's first term was right for 4% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by University of Bristol · Not applicable, Interventional, and Health services research

Phase
Not applicable
Study type
Interventional
Enrollment
214
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

People living with Parkinson's disease experience progressive motor and non-motor symptoms, which negatively impact on health-related quality of life. Symptoms emerge and evolve as the disease progresses.

Current care models are often inadequate to meet their needs.

This study aims to evaluate whether a complex and innovative model of integrated care will increase an individual's ability to achieve their personal goals, have a positive impact on health and symptom burden, and be more cost-effective when compared with usual care.

Read the detailed description

Background: People living with Parkinson's disease experience progressive motor and non-motor symptoms, which negatively impact on health-related quality of life and can lead to an increased risk of hospitalisation. It is increasingly recognised that the current care models are not suitable for the needs of people with parkinsonism whose care needs evolve and change as the disease progresses. This study aims to evaluate whether a complex and innovative model of integrated care will increase an individual's ability to achieve their personal goals, have a positive impact on health and symptom burden, and be more cost-effective when compared with usual care.

Methods: This is a single centre, randomised controlled trial where people with parkinsonism and their informal caregivers are randomised into one of two groups: either PRIME Parkinson multi-component model of care; or usual care. Adults ≥18 years with a diagnosis of parkinsonism, able to provide informed consent or the availability of a close friend or relative to act as a personal consultee if capacity to do so is absent, and living in the trial geographical area are eligible. Up to three caregivers per patient can also take part, must be ≥18 years, provide informal, unpaid care and able to give informed consent. The primary outcome measure is goal attainment, as measured using the Bangor Goal Setting Interview. The duration of enrolment is 24 months. The total recruitment target is n=214 and the main analyses will be intention to treat.

Discussion: This trial tests whether a novel model of care improves health and disease-related metrics including goal attainment, and decreases hospitalisations whilst being more cost-effective than the current usual care. Subject to successful implementation of this intervention within one centre, the PRIME Parkinson model of care could then be evaluated within a cluster-randomised trial at multiple centres.

02

Conditions studied

  • Parkinsonism

Keywords

  • Lewy body dementia
  • Idiopathic Parkinson's Disease
  • Multiple System Atrophy
  • Progressive Supranuclear Palsy
  • Corticobasal degeneration
  • Vascular dementia
03

In context

Parkinson Disease Reclassified

4,573 studies on the registry are indexed under Parkinson Disease; 1,086 are open to participants now.

This study's enrollment of 214 is above the median of 40 across 3,353 interventional studies indexed under Parkinson Disease.

Browse Parkinson Disease studies →

Lead sponsor

University of Bristol is the lead sponsor of 22 studies on the registry; none are open to participants now.

Compared within Parkinson Disease, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Parkinsonian Disorders. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Have a diagnosis of parkinsonism made by a movement disorder specialist
  2. Be willing to participate
  3. Have the ability to provide to participant, or where unable to do so due to cognitive impairment, availability of a close friend or relative to act as a personal consultee
  4. Age 18 years and above.
  5. Resident within the geographical catchment area of Royal United Hospital Bath NHS Foundation Trust, UK

Exclusion criteria

Exclusion Criteria:

  1. Patients with drug, infection or toxin induced parkinsonism
  2. Patients who lack capacity to participate but do not have anyone who can be a consultee to provide advice regarding the patient's wishes and views
  3. Patients with a current medical, cognitive or psychosocial issue or co-enrolment in other study that, in the opinion of the site investigator, would interfere with adherence to study requirements.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
214 participants (actual)

Study arms

  • Experimental
    PRIME Parkinson Care

    PRIME Parkinson Care is a multi-component model of care comprising individual components: a) Case management b) Empowerment of patients and care givers c) Empowerment of healthcare professionals d) IT infrastructure.

    Other: PRIME Parkinson Care · Other: Usual Care

  • Placebo comparator
    Usual care

    Usual care provided by NHS

    Other: Usual Care

Interventions

  • OtherPRIME Parkinson Care

    A novel model of care

  • OtherUsual Care

    Usual NHS Care

06

What researchers measure

Primary outcomes

  1. Goal attainment

    Measured using the Bangor Goal-Setting Interview (BGSI) - score 1-10, higher score = better outcome

    Time frame: 24 months

Secondary outcomes

  1. Parkinson's disease assessment

    Measured using MDS-Unified Parkinson's disease Rating Scale (MDS-UPDRS) Score range 0-199, higher score = worse outcome

    Time frame: 24 months

  2. Non-motor symptom burden

    Measured using MDS-Non-motor rating scale (MDS-NMS); Score range 0-334, higher score = worse outcome

    Time frame: 24 months

  3. Parkinson's-related quality of life

    Measured using The Parkinson's Disease Questionnaire (PDQ-39); Score range 0-100, higher score = worse outcome

    Time frame: 24 months

  4. Fear of falling

    Measured using the Iconographical Falls Efficacy Scale (ICON-FES); Score range 10-40, higher score = worse outcome

    Time frame: 24 months

  5. Global Impression of change

    Measured using the Patients' Global Impression of Change (PGIC);Score range 0-7, higher score = worse outcome

    Time frame: 24 months

  6. Frailty

    Measured using The Frailty Instrument of the Survey of Health, Ageing and Retirement in Europe (SHARE-FI75+); Score range 0-1, higher score = worse outcome. Measured using Measured using Pictorial fit frail scale; Score range 0-43, higher score = worse outcome. Measured using clinical frailty scale; Score range 0-9, higher score = worse outcome

    Time frame: 24 months

  7. Sarcopenia

    Measured using the Sluggishness, Assistance in walking, rising from a chair, climb stairs, falls questionnaire (SARC-F); Score range 0-10, higher score = worse outcome

    Time frame: 24 months

  8. Malnutrition risk

    Measured using the Malnutrition Universal Screening Tool (MUST); Score range 0-6, higher score = worse outcome. Measured using the Seniors in the community: risk evaluation for eating and nutrition (SCREEN-II-14); Score range 0-64, higher score = better outcome.

    Time frame: 24 months

  9. Physical performance

    Measured using the Short Physical Performance Battery (SPPB); Score range 0-12, higher score = better outcome. Measured using the Timed up and Go (TUG); score is not a scale (timing).

    Time frame: 24 months

  10. Physical activity

    Measured using the Incidental and Planned Exercise Questionnaire - WA Version (IPEQ-WA); Score range 0-182, higher score = better outcome

    Time frame: 24 months

  11. Gait

    Measured using single and dual task gait assessments

    Time frame: 24 months

  12. Grip strength

    Measured using hand-held dynamometer; scoring is in kg not a scale

    Time frame: 24 months

  13. Advance Care Plan data

    Measured using the Edmonton Symptom Assessment System - Revised: Parkinson's disease (ESAS-R-PD); Score range 0-100, higher score = worse outcome

    Time frame: 24 months

  14. Palliative symptom burden

    Measured using the Palliative Case Outcome Scale - symptom list: Parkinson's disease (POS-S-PD); Score range 0-40, higher score = worse outcome

    Time frame: 24 months

  15. Hospice utilisation outside place of death

    Captured from hospital and GP records

    Time frame: 24 months

  16. Use of anticipatory medication

    Captured from hospital and GP records

    Time frame: 24 months

  17. Healthcare contacts with hospice and/or palliative care services

    Captured from hospital and GP records

    Time frame: 24 months

  18. Loneliness/social isolation

    Measured using UCLA-Loneliness Scale (3-item); Score range 3-9, higher score = worse outcome

    Time frame: 24 months

  19. Social participation

    Measured using the English Longitudinal Study of Ageing questionnaire (ELSA) - scoring not a scale

    Time frame: 24 months

  20. Perceived social support

    Measured using Multidimensional scale of perceived social support (MSPSS); Score range 12-84, higher score = better outcome

    Time frame: 24 months

  21. Coping strategy

    Measured using the Brief Coping Orientation to Problems Experienced Inventory (BRIEFCope); Score range 28-112, higher score = better outcome

    Time frame: 24 months

  22. Acceptance of illness

    Measured using Acceptance of Illness Scale; Score range 8-40, higher score = better outcome

    Time frame: 24 months

  23. Capability

    Measured using the ICEpop Capability measure for older people (ICECAP-O); Score range 5-20, higher score = better outcome

    Time frame: 24 months

  24. Patient Activation

    Measured using Patient Activation Measure (PAM); Score range 0-100, higher score = better outcome

    Time frame: 24 months

  25. Health related quality of life

    Measured using EuroQol 5D-5L (EQ-5D-5L); Score range 5-25, higher score = worse outcome

    Time frame: 24 months

  26. Mortality

    Captured from hospital and GP records

    Time frame: 24 months

  27. Healthcare events

    Captured from hospital and GP records

    Time frame: 24 months

  28. Frequency of Parkinson's follow-up

    Captured from hospital and GP records

    Time frame: 24 months

  29. Frequency and type of engagement with PRIME Parkinson care

    Captured from study information

    Time frame: 24 months

  30. Experience of holistic patient-centred care

    Measured using Patient Assessment of Chronic Illness Care (PACIC-26); Score range 26-130, higher score = better outcome

    Time frame: 24 months

  31. Montreal Cognitive Assessment

    Measured using Montreal Cognitive Assessment

    Time frame: 24 months

  32. Bone health

    Measured using a combination of QFracture and FRAX questionnaires

    Time frame: 24 months

  33. Life space assessment

    Measured using LSA questionnaire collecting participant's movements over the last month

    Time frame: 24 months

07

Study locations

1 site
  • Population Health Sciences, University of Bristol
    Bristol, BS8 2PS, United Kingdom
08

References and documents

Publications

  • Lloyd K, Tenison E, Smith S, Lithander F, Kidger J, Brant H, Redwood S, Ben-Shlomo Y, Henderson EJ. Exploring how PRIME-Parkinson care is implemented and whether, how and why it produces change, for who and under what conditions: a protocol for an embedded process evaluation within the PRIME-UK randomised controlled trial. BMJ Open. 2025 Feb 2;15(1):e086353. doi: 10.1136/bmjopen-2024-086353. PubMed 39894518 ↗

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 29, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05127057
Lead sponsor
University of Bristol
Responsible party
Sponsor
First posted
Nov 19, 2021
Start date
Oct 28, 2022
Primary completion
Jun 3, 2025
Completion
Jun 12, 2025
Last update
Sep 29, 2025

Study contacts

Emily J Henderson, PhD
principal investigator · University of Bristol

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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