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The Personalized Parkinson Project (PPP) (PPP)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT03364894
Recruitment Status : Unknown
Verified January 2021 by Radboud University Medical Center.
Recruitment status was:  Active, not recruiting
First Posted : December 7, 2017
Last Update Posted : June 25, 2021
Verily Life Sciences LLC
University Medical Center Groningen
Maastricht University Medical Center
Parkinson Vereniging
Topsector Life Sciences and Health
City of Nijmegen (City Hall)
Province of Gelderland
Information provided by (Responsible Party):
Radboud University Medical Center

Brief Summary:

Background Our understanding of PD has stagnated, partly due to the limited patient diversity and brief followup captured in most study cohorts. Additionally, potentially valuable biomarkers derived from different types of measurements are rarely analyzed in an integrated fashion.

Objective This study aims to create a longitudinal dataset of clinical, molecular, imaging, and continuous wearable sensor-based data from a representative Parkinson's disease (PD) cohort. Data will be made available to researchers worldwide to accelerate the discovery of novel etiological insights, development of new therapeutic approaches, and personalized disease management. For this purpose, an extensible norm for sharing research data will be developed, meeting the latest data privacy and security standards.

Methods Supported by a multinational, public-private partnership, a prospective cohort study was designed to include 650 representative PD patients (disease duration <5 years). Comprehensive follow-up for at least 2 years includes: (1) annual assessment at the study center for acquisition of detailed clinimetric data, magnetic resonance imaging, and biospecimens (plasma, serum, cerebrospinal fluid (CSF), stool) and (2) collection of data from the home environment, using self-assessments and an advanced wrist-worn wearable device to continuously measure biological and environmental signals. Collection, storage, and sharing of these research data will be facilitated by a new method to protect privacy and enhance security using polymorphic encryption and pseudonymization (PEP), a methodology that combines advanced encryption with distributed pseudonymization and data access management.

Conclusion This study is unique, as it includes a cohort of unbiased subjects with recently diagnosed PD, creating an unprecedented dataset that combines longitudinally collected clinical, molecular, imaging, and data from wearable sensors using state of the art technology. The single-center study design minimizes measurement variability. Finally, the innovative methodology for data privacy and protection might serve as a new international standard for sharing research data.

Condition or disease
Parkinson Disease

Detailed Description:

The Personalized Parkinson Project proposes an unbiased approach to biomarker development with multiple clinical, genomic and other molecular, and imaging biomarkers measured in a large population, measured at 3 time points (baseline visit, one year follow-up, and two years' follow-up). In addition, the study protocol includes day-to-day patient monitoring with a multisensor wearable device, the Verily Study Watch, that continuously collects data (movement, pulse, skin temperature, ambient information) and allows for real-time data collection between study visits. The goal of the device is to collect high-resolution, continuous biological signals from the body. These measurements of physiology, activity, and environmental conditions over the course of a 2-year study will be used to create a quantified functional assessment of patients with PD. Mapping these signals with clinical outcomes such as disease progression will allow the investigators to evaluate the relationship between biosensor data and the clinical variables, genotypic, and imaging biomarkers collected in the study.

This study is intended to create a unique resource of genotypic, functional, and phenotypic data collected longitudinally on a cohort of Dutch subjects with PD (n=650), allowing the Research Collaborators to address a series of hypothesis-driven research questions. The aim is to develop novel etiological insights, to identify biomarkers that can assist in predicting differences in prognosis and treatment response between patients, to improve existing treatments, to develop new therapeutic approaches, and to develop a more precise and personalized disease management approach.

Additionally, the cohort will serve as a source of data that can be accessed by qualified researchers worldwide, allowing them to add their research capacity to further address the main aims of this study. For this reason, data governance will be managed by dedicated advisory boards and data review committees, as specified in the study protocol. Participation in this study and results from this study will not be used for patient treatment decisions.

The aim of this study is threefold:

  1. The primary objective of the study is to perform a set of hypothesis-driven analyses on the study data set, aiming to correlate established biomarkers (obtained clinically, from brain magnetic resonance imaging (MRI), from cerebrospinal fluid (CSF), from known genetic factors, and from monitoring of biosensors signals) to the rate of disease progression, and to responses to treatment (both pharmacological and behavioral, such as participation in exercise). Also, the investigators aim to identify biomarkers that can assist in predicting differences in prognosis and treatment response between patients. Finally, by developing novel etiological and pathophysiological insights, the study aims to improve existing treatments and to develop new therapeutic approaches, as a basis for development of a more precise and personalized disease management approach.
  2. The secondary objective of the study is to evaluate the Verily Study Watch, to assess how these devices could provide information about the function of patients with PD.
  3. The tertiary objective of this study is to create an extensive longitudinal dataset describing the genetic, clinical, functional, and phenotypic characteristics of a representative Parkinson's disease (PD) subject cohort (n = 650) to allow researchers to investigate important unanswered questions in PD.

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Study Type : Observational
Actual Enrollment : 520 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: The Personalized Parkinson Project (De Parkinson Op Maat Studie)
Actual Study Start Date : October 1, 2017
Estimated Primary Completion Date : December 2022
Estimated Study Completion Date : December 2022

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Short-term disease progression in terms of motor symptoms [ Time Frame: From baseline till 1 year follow-up ]
    Change in Movement Disorders Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) part III score, measured in off state. This scale assesses 18 motor symptoms (33 items) that are specific for Parkinson's disease. Item scores range from 0 to 4 and are summed, resulting in a total score ranging from 0 to 132, with higher scores representing worse outcomes.

  2. Short-term disease progression in terms of cognitive functioning [ Time Frame: From baseline till 1 year follow-up ]
    Change in Montreal Cognitive Assessment (MoCA) score. The MoCa assesses in 30 items different types of cognitive abilities (0-1 scale), including orientation, short-term memory and attention. All items are summed, resulting in a total score ranging from 0 to 30, with higher scores representing better outcomes.

  3. Mid-term disease progression in terms of motor symptoms [ Time Frame: From baseline till 2 year follow-up ]
    Change in MDS-UPDRS part III score, measured in off state.

  4. Mid-term disease progression in terms of cognitive functioning [ Time Frame: From baseline till 2 year follow-up ]
    Change in Montreal Cognitive Assessment (MoCA) score

Biospecimen Retention:   Samples With DNA
Blood specimen and stool collection from all enrolled patients and cerebrospinal fluid (CSF) from patients who have provided additional and optional consent to CSF collection, for longitudinal genotypic and phenotypic assays.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Any person with Parkinson's disease who meets the inclusion criteria and does not meet the exclusion criteria.

Inclusion Criteria:

  • Subject has Parkinson's disease of ≤5 years duration, defined as time since diagnosis made by a neurologist.
  • Subject is an adult, at least 18 years of age.
  • Subject can read and understand Dutch.
  • Subject has completed the Informed Consent form, as approved by the Ethics Committee.
  • Subject is willing, competent, and able to comply with all aspects of the protocol, including follow-up schedule and biospecimen collection.
  • Subject is not a current employee or family member of employees of the institutions involved in the study.

Exclusion Criteria:

  • Subject is pregnant or breastfeeding.
  • Subject is allergic to nickel.
  • Subject has co-morbidities that would hamper interpretation of parkinsonian disability, such as coincident musculoskeletal abnormalities, in the opinion of the Investigator.
  • Contraindicated for MRI, e.g. claustrophobia, presence of an active implant, pacemaker, insulin pump, neurostimulator, ossicle prosthesis, and/or other medical device or other non-removable metal part incompatible with MRI.
  • For lumbar puncture:

    • Allergy to local anesthetic agents
    • Medical history of compression of spinal cord, current local skin infection at the site of the lumbar puncture, developmental abnormalities in lower spine, blood coagulopathy, anticoagulant medication (Acenocoumarol, Warfarin, Dabigatran).
    • Clinical (or previous MRI) evidence of structural cerebral abnormalities that are not compatible with the performance of a lumbar puncture such as malignancies, abscess, or obstructive hydrocephalus.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03364894

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Radboud university medical center
Nijmegen, Netherlands, 6500 HB
Sponsors and Collaborators
Radboud University Medical Center
Verily Life Sciences LLC
University Medical Center Groningen
Maastricht University Medical Center
Parkinson Vereniging
Topsector Life Sciences and Health
City of Nijmegen (City Hall)
Province of Gelderland
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Principal Investigator: Bastiaan R Bloem, MD, PhD Radboud university medical center, department of neurology
Additional Information:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Radboud University Medical Center
ClinicalTrials.gov Identifier: NCT03364894    
Other Study ID Numbers: NL59694.091.17
First Posted: December 7, 2017    Key Record Dates
Last Update Posted: June 25, 2021
Last Verified: January 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description:

The dataset generated in this study will become available to qualified researchers worldwide, provided research questions are approved by the Research and Data Sharing Review Committee (RDSRC). The RDSRC will protect subjects' privacy by limiting the availability of the study data and controlling access to sources of information that might potentially be used to identify the individual subjects associated with the biospecimen analysis.

The RDSRC will assess the relevance and scientific quality of research proposals for which study data or material is requested. These responsibilities include the consideration of applications for:

  • access to the resources obtained in this study, including data or biomaterials
  • applications for endorsement of a scientific project using study materials;
  • applications for endorsement of a clinical study using study materials.
Supporting Materials: Study Protocol
Time Frame: Not decided yet.
Access Criteria: Currently no list of criteria is available.

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Studies a U.S. FDA-regulated Drug Product: No
Keywords provided by Radboud University Medical Center:
Parkinson's Disease
Wearable sensors
Disease progression
Additional relevant MeSH terms:
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Parkinson Disease
Parkinsonian Disorders
Basal Ganglia Diseases
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Movement Disorders
Neurodegenerative Diseases