NCT05806866

Brief Summary

Mild cognitive impairment (PD-MCI) is one of the greatest risk factors for future Parkinson's disease dementia (PDD). A recent meta-analysis found that, on average, 31% of patients with PD-MCI converted to PDD within seven years; however, 24% of patients with PD-MCI reverted back to normal cognitive function. Consequently, the false positive rate for predicting PDD among patients with PD-MCI is high, and better predictive markers to define patients at high risk for PDD development are urgently needed. Therefore, a combination of different markers, including clinical, genetic, and other biomarker data, are proposed to increase ability to predict cognitive worsening and dementia. Based on data of the first follow-up of this cohort results indicated that presence of both mild cognitive instrumental activities of daily living (IADL) impairment and PD-MCI dramatically increases the risk for PDD (PubMed ID: 36240089). This study evaluates markers predicting cognitive and IADL long-term outcome in our sample. Additionally, focus of the study is the investigation whether ratings of patients or informants best predicted decline of cognitive impairment and/or everyday function. Clinical data along with other clinical marker and biomarker status will be investigated.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
130

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Mar 2023

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 28, 2023

Completed
22 days until next milestone

Study Start

First participant enrolled

March 22, 2023

Completed
19 days until next milestone

First Posted

Study publicly available on registry

April 10, 2023

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

April 10, 2023

Status Verified

February 1, 2023

Enrollment Period

1.7 years

First QC Date

February 28, 2023

Last Update Submit

April 5, 2023

Conditions

Keywords

Parkinson's diseaseCognitionActitvities of daily living functionParkinson's disease dementia

Outcome Measures

Primary Outcomes (1)

  • Diagnosis of Parkinson's disease dementia (PDD) / Level II diagnosis of mild cognitive impairment in Parkinson's disease (PD-MCI)

    Patients will be classified as PD-MCI according to Level-II Movement Disorder Society recommendations if cognitive impairment was present but did not significantly interfere with everyday function \[PubMed ID: 21661055\] according to a personalized interview. PDD was defined according to Movement Disorder Society Task Force criteria \[PubMed ID: 18098298\] if cognitive impairment was present and severe enough to impair activities of daily living function unrelated to motor or autonomic symptoms. Cognitive impairment will be defined according to Level-I (impairment of global cognition) for patients with minimal assessments, or Level-II (performance below 1.5 standard deviation of the population mean reported in the test manuals on at least two tests) for patients assessed using a full cognitive battery. Assessment include a detailed neuropsychological test battery (see below).

    6-8 years

Secondary Outcomes (3)

  • Pfeffer Activities of daily living scale

    6-8 years

  • Follow-up score in global cognition

    6-8 years

  • Follow-up cognitive domain performance

    6-8 years

Interventions

A detailed neuropsychological test battery will be applied. The Functional Activitites Questionnaire (FAQ) subscores will be used to define cognitive and motor instrumental activities of daily living function

Eligibility Criteria

Age50 Years - 95 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants of the already recruited cross-sectional cohort will be asked to participate in the follow-up assessment. People with Parkinson's disease who did not agree to participate in a longitudinal study or who have asked not to be contacted after the first cross-sectional assessment will not be contacted again. A drop-out rate of 20% is expected for follow-up retention. Therefore, investigation of 145 people with Parkinson's disease will be primarily conducted between January 2023 and June 2024. During the executive project phase, around 7 to 9 patients will be assessed per month. People with Parkinson's disease will be contacted either via phone or in written form. Reasons for drop-outs will be registered for data analysis.

You may qualify if:

  • Participant in the " Amyloid-Beta in cerebrospinal fluid as a risk factor for cognitive dysfunction in Parkinson's Disease" (ABC-PD) study
  • Diagnosis of Parkinson's disease according to the United Kingdom Brain Bank criteria.
  • Ability to communicate well with the investigator, to understand and comply with the requirements of the study.
  • Provide written informed consent to participate in the study and understand the right to withdraw consent at any time without prejudice to future medical care.
  • If people with Parkinson's disease are not able to give consent for study participation (confirmed by an independent physician), study consent of a legal guardian is required.

You may not qualify if:

  • Any disability that may prevent the subject from completing the informed consent form or other study requirements.
  • Other neurodegenerative disease which renders the subject unable to communicate well with the investigator or to understand and comply with the requirements of the study.
  • Participation in any clinical investigation of a new investigational compound or therapy within 4 weeks prior to baseline visit, and any other limitation of participation based on local regulations.
  • Alcohol, medication, or drug dependency or abuse (except for nicotine).
  • History of brain disease other than Parkinson's disease, e.g., head trauma, stroke, encephalitis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University hospital Tübingen

Tübingen, Baden-Wurttemberg, 72076, Germany

RECRUITING

Related Publications (4)

  • Litvan I, Aarsland D, Adler CH, Goldman JG, Kulisevsky J, Mollenhauer B, Rodriguez-Oroz MC, Troster AI, Weintraub D. MDS Task Force on mild cognitive impairment in Parkinson's disease: critical review of PD-MCI. Mov Disord. 2011 Aug 15;26(10):1814-24. doi: 10.1002/mds.23823. Epub 2011 Jun 9.

    PMID: 21661055BACKGROUND
  • Dubois B, Burn D, Goetz C, Aarsland D, Brown RG, Broe GA, Dickson D, Duyckaerts C, Cummings J, Gauthier S, Korczyn A, Lees A, Levy R, Litvan I, Mizuno Y, McKeith IG, Olanow CW, Poewe W, Sampaio C, Tolosa E, Emre M. Diagnostic procedures for Parkinson's disease dementia: recommendations from the movement disorder society task force. Mov Disord. 2007 Dec;22(16):2314-24. doi: 10.1002/mds.21844.

    PMID: 18098298BACKGROUND
  • Becker S, Pauly C, Lawton M, Hipp G, Bowring F, Sulzer P, Hu M, Kruger R, Gasser T, Liepelt-Scarfone I. Quantifying activities of daily living impairment in Parkinson's disease using the Functional Activities Questionnaire. Neurol Sci. 2022 Feb;43(2):1047-1054. doi: 10.1007/s10072-021-05365-1. Epub 2021 Jun 10.

    PMID: 34109514BACKGROUND
  • Becker S, Bode M, Brockmann K, Gasser T, Michaelis K, Solbrig S, Nuerk HC, Schulte C, Maetzler W, Zimmermann M, Berg D, Liepelt-Scarfone I. Cognitive-Driven Activities of Daily Living Impairment as a Predictor for Dementia in Parkinson Disease: A Longitudinal Cohort Study. Neurology. 2022 Dec 5;99(23):e2548-e2560. doi: 10.1212/WNL.0000000000201201.

    PMID: 36240089BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

Blood and cerebrospinal fluid (CSF) samples will be collected in the morning, on an empty stomach. If patients do not agree for a lumbar puncture, fasting for blood sampling is not necessary for biomarker analysis. For patients with no CSF withdrawal about 40 ml venous blood will be collected for data analysis and storage of blood in the neurobank of the Hertie Institute for Clinical Brain Research (ethic proposal: 199/2011BO1). This amount does not represent any health hazard. Of those 10 ml of venous blood (1 Serum tube) will be used for study related analysis of neurofilament light chain. If the patient agrees for withdrawal of CSF additional 12,5 ml venous blood (2 serum tube, 1 glucose) will be taken for safety analysis.

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Study Officials

  • Inga Liepelt-Scarfone, PhD

    Eberhard Karls Universität Tübingen

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 28, 2023

First Posted

April 10, 2023

Study Start

March 22, 2023

Primary Completion

November 30, 2024

Study Completion

December 31, 2024

Last Updated

April 10, 2023

Record last verified: 2023-02

Data Sharing

IPD Sharing
Will share

Study protocol

Shared Documents
STUDY PROTOCOL
Time Frame
During conduct and analysis
Access Criteria
Access will be granted upon reasonable request.

Locations