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Terminated No phase listed Observational

Characterizing Biomarkers of Early Parkinson's Disease Progression (TREG)

ClinicalTrials.gov ID: NCT03716258

Public ClinicalTrials.gov record NCT03716258. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 2, 2026, 1:41 PM EST

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Characterizing Biomarkers of Early Parkinson's Disease Progression

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to look at a blood marker of inflammation in early untreated Parkinson's disease.

Study identification

NCT ID
NCT03716258
Recruitment status
Terminated
Study type
Observational
Phase
Not listed
Enrollment
16 participants

Conditions and interventions

Interventions

Not listed

Eligibility (public fields only)

Age range
40 Years to 80 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jan 1, 2019 (Actual)
Primary completion
May 1, 2021 (Actual)
Completion
May 1, 2021 (Actual)
Last update posted
Apr 20, 2022

2019 – 2021

United States locations

U.S. sites
2
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Oregon Health & Science University Portland Oregon 97201 —
VA Portland Health Care System Portland Oregon 97239 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03716258, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Apr 20, 2022 · Synced Nov 2, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03716258 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →