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NCT04477785Recruiting

PPMI Clinical - Establishing a Deeply Phenotyped PD Cohort

The Parkinson's Progression Markers Initiative (PPMI) Clinical - Establishing a Deeply Phenotyped PD Cohort

Source: ClinicalTrials.gov · Last updated 27 Jul 2026

Brief summary (registry, in English)

The Parkinson Progression Marker Initiative (PPMI) is a longitudinal, observational, multi-center natural history study to assess progression of clinical features, digital outcomes, and imaging, biologic and genetic markers of Parkinson's disease (PD) progression in study participants with manifest PD, prodromal PD, and healthy controls. The overall goal of PPMI is to identify markers of disease progression for use in clinical trials of therapies to reduce progression of PD disability.

Status (registry)
Recruiting
Study type
Observational
Enrollment
4500 (estimated)
First submitted
15 Jul 2020
Start date
1 Jul 2020
Primary completion date
31 Dec 2033
Lead sponsor
Michael J. Fox Foundation for Parkinson's Research
NCT number
NCT04477785

What you commit to

  • Study type: Observational
  • Planned participants: 4500
  • From 1 Jul 2020 to the primary completion date, 31 Dec 2033
  • 50 sites in 12 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Criteria the registry did not label

  • 7.1 Healthy Controls (HC) Note: Active Healthy controls previously enrolled in PPMI do not require re-assessment of eligibility criteria listed below for enrollment in PPMI Clinical. Active participants do need to be able to provide informed consent for PPMI Clinical participation (includes use of a designated research proxy).
  • 7.1.1 Inclusion Criteria (HC)
  • Male or female age 57 years or older at Screening visit.
  • Individuals taking any of the following drugs: alpha methyldopa, methylphenidate, amphetamine derivatives or modafinil, must be willing and medically able to hold the medication for at least 5 half-lives before SPECT imaging.
  • Confirmation that participant is eligible based on Screening SPECT imaging.
  • Able to provide informed consent.
  • Either is male, or is female and meets additional criteria below, as applicable:
    • Female of childbearing potential who is not pregnant, lactating, or planning pregnancy during the study and has a negative pregnancy test on day of Screening SPECT imaging test prior to injection of DaTscanTM.
    • 7.1.2 Exclusion Criteria (HC)
  • First degree relative with PD (i.e., biologic parent, sibling, child).
  • Current or active clinically significant neurological disorder (in the opinion of the Investigator).
  • Previously obtained MRI scan with evidence of clinically significant neurological disorder (in the opinion of the Investigator).
  • Received any of the following drugs: dopamine receptor blockers (neuroleptics), metoclopramide and reserpine within 6 months of Screening visit.
  • Current treatment with anticoagulants (e.g., coumadin, heparin, oral thrombin inhibitors) that might preclude safe completion of the lumbar puncture.
  • Condition that precludes the safe performance of routine lumbar puncture, such as prohibitive lumbar spinal disease, bleeding diathesis, or clinically significant coagulopathy or thrombocytopenia.
  • Any other medical or psychiatric condition or lab abnormality, which in the opinion of the investigator might preclude participation.
  • Any other reason that, in the opinion of the investigator, would render the participant unsuitable for study enrollment.
    • 7.2 Parkinson's Disease (PD) Note: Active PD participants previously enrolled in PPMI do not require re-assessment of eligibility criteria listed below for enrollment in PPMI Clinical. Active participants do need to be able to provide informed consent for PPMI Clinical participation (includes use of a designated research proxy).
    • 7.2.1 Inclusion Criteria (PD)
  • Male or female age 30 years or older at Screening Visit.
  • A diagnosis of Parkinson's disease for 2 years or less at Screening Visit.
  • Not expected to require PD medication within at least 6 months from Baseline.
  • Patients must have at least two of the following: resting tremor, bradykinesia, rigidity (must have either resting tremor or bradykinesia); OR either asymmetric resting tremor or asymmetric bradykinesia.
  • Hoehn and Yahr stage I or II at Baseline.
  • Individuals taking any of the following drugs: alpha methyldopa, methylphenidate, amphetamine derivatives or modafinil, must be willing and medically able to hold the medication for at least 5 half-lives before SPECT imaging.
  • Confirmation that participant is eligible based on Screening SPECT imaging.
  • Able to provide informed consent.
  • Either is male, or is female and meets additional criteria below, as applicable:
    • Female of childbearing potential who is not pregnant, lactating, or planning pregnancy during the study and has a negative pregnancy test on day of Screening SPECT imaging test prior to injection of DaTscanTM.
    • 7.2.2 Exclusion Criteria (PD)
  • Currently taking levodopa, dopamine agonists, MAO-B inhibitors, amantadine or another PD medication, except for low-dose treatment of restless leg syndrome (with permission of medical monitor).
  • Has taken levodopa, dopamine agonists, MAO-B inhibitors or amantadine within 60 days of Baseline visit.
  • Has taken levodopa or dopamine agonists prior to Baseline visit for more than a total of 90 days.
  • Atypical PD syndromes due to either drugs (e.g., metoclopramide, flunarizine, neuroleptics) or metabolic disorders (e.g., Wilson's disease), encephalitis, or degenerative diseases (e.g., progressive supranuclear palsy).
  • A clinical diagnosis of dementia as determined by the investigator.
  • Previously obtained MRI scan with evidence of clinically significant neurological disorder (in the opinion of the Investigator).
  • Received any of the following drugs: dopamine receptor blockers (neuroleptics), metoclopramide and reserpine within 6 months of Screening visit.
  • Current treatment with anticoagulants (e.g., coumadin, heparin, oral thrombin inhibitors) that might preclude safe completion of the lumbar puncture.
  • Condition that precludes the safe performance of routine lumbar puncture, such as prohibitive lumbar spinal disease, bleeding diathesis, or clinically significant coagulopathy or thrombocytopenia.
  • Any other medical or psychiatric condition or lab abnormality, which in the opinion of the investigator might preclude participation.
  • Any other reason that, in the opinion of the investigator, would render the participant unsuitable for study enrollment.
    • 7.3 Parkinson's Disease (PD) with LRRK2 or GBA variant Note: Active PD participants previously enrolled in PPMI do not require re-assessment of eligibility criteria listed below for enrollment in PPMI Clinical. Active participants do need to be able to provide informed consent for PPMI Clinical participation (includes use of a designated research proxy).
    • 7.3.1 Inclusion Criteria (PD ¬- LRRK2 or GBA)
  • Male or female age 30 years or older at Screening Visit.
  • A diagnosis of Parkinson's disease for 2 years or less at Screening Visit.
  • Patients must have at least two of the following: resting tremor, bradykinesia, rigidity (must have either resting tremor or bradykinesia); OR either asymmetric resting tremor or asymmetric bradykinesia.
  • Hoehn and Yahr stage I or II at Baseline.
  • Confirmation of causative LRRK2 or GBA (willingness to undergo genetic testing as part of genetic screening and be informed of genetic testing results, or approved documentation of prior genetic testing results).
  • Individuals taking any of the following drugs: alpha methyldopa, methylphenidate, amphetamine derivatives or modafinil, must be willing and medically able to hold the medication for at least 5 half-lives before SPECT imaging.
  • Confirmation that participant is eligible based on Screening SPECT imaging.
  • Able to provide informed consent.
  • Either is male, or is female and meets additional criteria below, as applicable:
    • Female of childbearing potential who is not pregnant, lactating, or planning pregnancy during the study and has a negative pregnancy test on day of Screening SPECT imaging test prior to injection of DaTscanTM.
    • 7.3.2 Exclusion Criteria (PD - LRRK2 or GBA)
  • Received any of the following drugs: dopamine receptor blockers (neuroleptics), metoclopramide and reserpine within 6 months of Screening visit.
  • Current treatment with anticoagulants (e.g., coumadin, heparin) that might preclude safe completion of the lumbar puncture.
  • Condition that precludes the safe performance of routine lumbar puncture, such as prohibitive lumbar spinal disease, bleeding diathesis, or clinically significant coagulopathy or thrombocytopenia.
  • Any other medical or psychiatric condition or lab abnormality, which in the opinion of the investigator might preclude participation.
  • Any other reason that, in the opinion of the investigator, would render the participant unsuitable for study enrollment.
    • 7.4 Parkinson's Disease (PD) with SNCA or rare genetic variant Note: Active PD participants previously enrolled in PPMI do not require re-assessment of eligibility criteria listed below for enrollment in PPMI clinical. Active participants do need to be able to provide informed consent for PPMI Clinical participation (includes use of a designated research proxy).
    • 7.4.1 Inclusion Criteria (PD - SNCA or rare genetic variant (such as Parkin or Pink1))
  • Male or female age 30 years or older at Screening Visit.
  • Parkinson's disease diagnosis at Screening Visit.
  • Patients must have at least two of the following: resting tremor, bradykinesia, rigidity (must have either resting tremor or bradykinesia); OR either asymmetric resting tremor or asymmetric bradykinesia.
  • Hoehn and Yahr stage I, II, or III at Baseline.
  • Confirmation of causative SNCA or rare genetic variant (such as Parkin or Pink1) (willingness to undergo genetic testing as part of genetic screening and be informed of genetic testing results, or approved documentation of prior genetic testing results).
  • Individuals taking any of the following drugs: alpha methyldopa, methylphenidate, amphetamine derivatives or modafinil, must be willing and medically able to hold the medication for at least 5 half-lives before SPECT imaging.
  • Confirmation that participant is eligible based on Screening SPECT imaging.
  • Able to provide informed consent.
  • Either is male, or is female and meets additional criteria below, as applicable:
    • Female of childbearing potential who is not pregnant, lactating, or planning pregnancy during the study and has a negative pregnancy test on day of Screening SPECT imaging test prior to injection of DaTscanTM.
    • 7.4.2 Exclusion Criteria (PD - SNCA or rare genetic variant (such as Parkin or Pink1))
  • Received any of the following drugs: dopamine receptor blockers (neuroleptics), metoclopramide and reserpine within 6 months of Screening visit.
  • Current treatment with anticoagulants (e.g., coumadin, heparin) that might preclude safe completion of the lumbar puncture.
  • Condition that precludes the safe performance of routine lumbar puncture, such as prohibitive lumbar spinal disease, bleeding diathesis, or clinically significant coagulopathy or thrombocytopenia.
  • Any other medical or psychiatric condition or lab abnormality, which in the opinion of the investigator might preclude participation.
  • Any other reason that, in the opinion of the investigator, would render the participant unsuitable for study enrollment.
    • 7.5 Prodromal Note: Active Prodromal participants previously enrolled in PPMI do not require re-assessment of eligibility criteria listed below for enrollment in PPMI Clinical. Active participants do need to be able to provide informed consent for PPMI Clinical participation (includes use of a designated research proxy).
    • The specific predictive eligibility criteria for participants recruited through PPMI Remote to advance to PPMI Clinical will be iteratively optimized based on data collected from these studies.
    • 7.5.1 Inclusion criteria (Prodromal)
    • For Screening:
  • Confirmation that participant is eligible based on centrally determined predictive criteria including the University of Pennsylvania Smell Identification Test (UPSIT).
    • For participants in PPMI Remote, referral to the clinical site confirms predictive eligibility.
    • For participants identified by the clinical site, predictive criteria are based on generalized risk such as first degree biologic relative, known risk of PD including RBD, or known genetic variants associated with PD risk.
    • Additionally, confirmation of UPSIT eligibility during the Screening visit prior to SPECT Imaging.
  • Male or female age 60 years or older (except age 30 years or older for SNCA, or rare genetic variants (such as Parkin or Pink1) participants).
  • Individuals taking any of the following drugs: alpha methyldopa, methylphenidate, amphetamine derivatives or modafinil, must be willing and medically able to hold the medication for at least 5 half-lives before SPECT imaging.
  • Able to provide informed consent.
  • Either is male, or is female and meets additional criteria below, as applicable:
    • Female of childbearing potential who is not pregnant, lactating, or planning pregnancy during the study and has a negative pregnancy test on day of Screening SPECT imaging test prior to injection of DaTscanTM.
    • For continuation to Baseline visit and ongoing follow-up:
  • Confirmation that participant is eligible based on \*Screening SPECT imaging.
    • Screening SPECT Imaging eligibility:
    • Based on the results of the SPECT imaging test, Prodromal participants eligible to continue their participation in PPMI Clinical will be asked to return for their PPMI Clinical baseline visit. Neither the participant nor the site investigator will be made aware of the participant's DAT status during the study.
  • It is anticipated that approximately 6,000 participants will complete a screening visit to undergo DAT imaging. Approximately 2,000 participants will be eligible to continue their participation in PPMI Clinical (those not eligible to proceed will remain in PPMI Remote, as applicable).
  • All participants with DAT deficit will be eligible to continue their participation in PPMI Clinical. It is estimated that about 75% of eligible participants will have a DAT deficit (defined by a hybrid of visual assessment and quantitative striatal specific binding analysis).
  • Some participants without DAT deficit will also be eligible to continue their participation in PPMI Clinical. These participants will be chosen based on DAT binding that is reduced from age expected but it not outside the normal range and/or from individuals with high-risk of PD including RBD, LRRK2, GBA, SNCA, or rare genetic variants (such as Parkin or Pink1) that do not demonstrate DAT deficit. It is estimated that about 25% of eligible participants will not have a DAT deficit.
  • It is anticipated that approximately 30% of the PPMI Clinical prodromal participants with DAT deficit will phenoconvert to motor parkinsonism during a 3 to 5-year follow-up.
    • 7.5.2 Exclusion Criteria (Prodromal)
  • Clinical diagnosis of PD at screening, other parkinsonism, or dementia.
  • Received any of the following drugs: dopamine receptor blockers (neuroleptics), metoclopramide and reserpine within 6 months of Baseline Visit.
  • Current treatment with anticoagulants (e.g. coumadin, heparin) that might preclude safe completion of the lumbar puncture.
  • Condition that precludes the safe performance of routine lumbar puncture, such as prohibitive lumbar spinal disease, bleeding diathesis, or clinically significant coagulopathy or thrombocytopenia.
  • Any other medical or psychiatric condition or lab abnormality, which in the opinion of the investigator might preclude participation.
  • Currently taking levodopa, dopamine agonists, MAO-B inhibitors, amantadine or another PD medication, except for low-dose treatment of restless leg syndrome (with permission of medical monitor).
  • Has taken levodopa, dopamine agonists, MAO-B inhibitors or amantadine within 60 days of Baseline visit. except for low-dose treatment of restless leg syndrome (with permission of medical monitor).
  • Any other reason that, in the opinion of the investigator, would render the participant unsuitable for study enrollment.

Age in the registry: 30 years to - · Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (50)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Innsbruck Medical University
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InnsbruckAustriaRecruiting
McGill University
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MontrealCanadaRecruiting
The Ottawa Hospital - Civic Campus
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OttawaCanadaRecruiting
Toronto Western Hospital
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TorontoCanadaRecruiting
Philipps-University of Marburg
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HessenGermanyRecruiting
Paracelsus - Elena- Klinik
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KasselGermanyRecruiting
University of Luebeck
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LübeckGermanyRecruiting
University of Tuebingen
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TübingenGermanyRecruiting
Hospital Clinic de Barcelona
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BarcelonaSpainRecruiting
Hospital Donostia
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Donostia / San SebastianSpainRecruiting
Imperial College London
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LondonUnited KingdomRecruiting
Queen Mary University of London
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LondonUnited KingdomRecruiting
Newcastle University
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Newcastle upon TyneUnited KingdomRecruiting
John Radcliffe Hospital Oxford and Oxford University
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OxfordUnited KingdomRecruiting
Foundation for Biomedical Research of the Academy of Athens
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AthensGreeceRecruiting
Tel-Aviv Sourasky Medical Center
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Tel AvivIsraelRecruiting
University of Salerno
Coordinator of this site? Confirm its status
SalernoItalyRecruiting
Parkinson Research Clinic
Coordinator of this site? Confirm its status
LuxembourgLuxembourgRecruiting
Lagos College of Medicine, University of Lagos
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LagosNigeriaRecruiting
Radboud University
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NijmegenNetherlandsRecruiting
University of Michigan
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Ann ArborUnited StatesRecruiting
Emory University School of Medicine
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AtlantaUnited StatesRecruiting
University of Colorado Anschutz Medical Campus
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AuroraUnited StatesRecruiting
Johns Hopkins University
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BaltimoreUnited StatesRecruiting
University of Alabama at Birmingham
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BirminghamUnited StatesRecruiting
Parkinson's Disease& Movement Disorder Center of Boca Raton
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Boca RatonUnited StatesRecruiting
Boston University
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BostonUnited StatesRecruiting
Massachusetts General Hospital
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BostonUnited StatesRecruiting
Northwestern University
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ChicagoUnited StatesRecruiting
University of Cincinnati/Cincinnati Children's Hospital
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CincinnatiUnited StatesRecruiting
Cleveland Clinic
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ClevelandUnited StatesRecruiting
University of Florida
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GainesvilleUnited StatesRecruiting
Baylor College of Medicine
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HoustonUnited StatesRecruiting
University of Kansas Medical Center
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Kansas CityUnited StatesRecruiting
University of California San Diego
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La JollaUnited StatesRecruiting
Cleveland Clinic Lou Ruvo Center for Brain Health
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Las VegasUnited StatesRecruiting
Keck School of Medicine of USC
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Los AngelesUnited StatesRecruiting
Institute for Neurodegenerative Disorders
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New HavenUnited StatesRecruiting
NYU Langone Health
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New YorkUnited StatesRecruiting
Beth Israel Medical Center
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New YorkUnited StatesRecruiting
University of Pennsylvania
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PhiladelphiaUnited StatesRecruiting
Barrow Neurological Institute
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PhoenixUnited StatesRecruiting
University of Pittsburgh
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PittsburghUnited StatesRecruiting
Oregon Health Science University
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PortlandUnited StatesRecruiting
University of Rochester
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RochesterUnited StatesRecruiting
University of California San Francisco
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San FranciscoUnited StatesRecruiting
Mayo Foundation for Medical Education and Research
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ScottsdaleUnited StatesRecruiting
Univ of Washington and VA Puget Sound Health Care System
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SeattleUnited StatesRecruiting
Banner Research Institute
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Sun CityUnited StatesRecruiting
University of South Florida
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TampaUnited StatesRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.