Clinical trialNCT05065060RecruitingObservational

Parkinson Progression Marker Initiative Online (PPMI Online)

SponsorMichael J. Fox Foundation for Parkinson's ResearchEnrollment500,000Parkinson Disease

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

Parkinson Progression Marker Initiative Online (PPMI Online) is an observational study collecting participant reported information from people with and without Parkinson's disease (PD), for the goal of better understanding risk and predictive factors for PD. PPMI Online is part of the broader Parkinson Progression Marker Initiative aimed at identifying markers of disease progression for use in clinical trials of therapies to reduce progression of PD disability.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

Caroline Tanner, MD, PhD
University of California, San Francisco
Principal Investigator
clinicaltrials.gov ↗
Kenneth L Marek, MD
Institute for Neurodegenerative Disorders
Principal InvestigatorKOL profile →
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Ucsf Movement Disorders and Neuromodulation Center (mdnc)
San Francisco, California, United States
Recruiting

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study. It may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 28 Jul 2021
Primary completion: 31 Dec 2041
Completion: 31 Dec 2041
Last update posted: 25 Nov 2024
Registered enrollment: 500,000
Registry id: NCT05065060

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.