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NCT05421832Completed

A Novel Measurement Concept to Objectively Quantify Severity of Vocal and Speech Related Symptoms Associated With Parkinson's Disease

Source: ClinicalTrials.gov · Last updated 24 Jul 2025

Brief summary (registry, in English)

The aim of this research program is to develop and validate a smartphone app-based digital measurement concept that: * Objectively quantifies the severity of Parkinson's Disease (PD) related vocal and speech symptoms; * Accurately and sensitively identifies vocal and speech abnormalities associated with the prodromal stage of PD.

Status (registry)
Completed
Study type
Observational
Enrollment
91 (actual)
First submitted
8 Jun 2022
Start date
27 Sept 2022
Primary completion date
30 Jun 2025
Lead sponsor
Northwestern University
NCT number
NCT05421832

What you commit to

  • Study type: Observational
  • Participants enrolled: 91
  • From 27 Sept 2022 to the primary completion date, 30 Jun 2025
  • 1 site in 1 country
  • 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.

Prior treatment

  • History of drug and/or alcohol abuse within the past year prior to Screening Visit.
  • Previously obtained MRI scan with evidence of clinically significant neurological disorder (in the opinion of the Investigator).
  • History of drug and/or alcohol abuse within the past year prior to Screening Visit.
  • Previously obtained MRI scan with evidence of clinically significant neurological disorder (in the opinion of the Investigator).
  • History of drug and/or alcohol abuse within the past year prior to Screening Visit.

Other illness

  • Symptomatic or 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).
  • Current or active clinically significant neurological disorder other than PD (in the opinion of the Investigator).
  • Significant cognitive impairment or clinical dementia at Screening that, in the opinion of the Investigator, would interfere with study evaluation.
  • Any other medical or psychiatric condition, which in the opinion of the investigator might preclude participation.
    • Prodromal PD:
  • Clinical diagnosis of PD, other parkinsonism, or dementia.
  • Any current or active clinically significant neurological disorder (in the opinion of the Investigator).
  • Significant cognitive impairment or clinical dementia at Screening that, in the opinion of the Investigator, would interfere with study evaluation.
  • Any current or active clinically significant neurological disorder (in the opinion of the Investigator).
  • Significant cognitive impairment or clinical dementia at Screening that, in the opinion of the Investigator, would interfere with study evaluation.
  • Any other medical or psychiatric condition, which in the opinion of the investigator might preclude participation

Age

  • Any other medical or psychiatric condition, which in the opinion of the investigator might preclude participation.
    • Age \& Sex Matched Healthy Control:

Other

  • PD:
  • Late-stage PD diagnosis (i.e., Hoehn \& Yahr Stage 5) at Screening Visit
  • Inability or unwillingness to complete all aspects of the study - including use of a provisioned smartphone for study assessments; completion of telehealth assessments.
  • Inability or unwillingness to complete all aspects of the study - including use of a provisioned smartphone for study assessments; completion of telehealth assessments.
  • First degree relative with PD (i.e., biologic parent, sibling, child).
  • Inability or unwillingness to complete all aspects of the study - including use of a provisioned smartphone for study assessments; completion of telehealth assessments.

Who the study is looking for

  • PD:
  • Male or female age 30 years or older at Screening Visit.
  • Diagnosis of PD as defined by MDS PD diagnostic criteria \[1\]
  • PD severity at Screening Visit of either:
    • PD Hoehn and Yahr Stage 1-2, inclusive (PD Cohort I)
    • PD Hoehn and Yahr Stages 3-4, inclusive (PD Cohort II)
  • Able and willing to complete all aspects of the study, including at home smartphone app and Zoom telehealth assessments.
  • Able to provide informed consent.
    • Prodromal PD:
  • Confirmation that participant is eligible based on clinician determined predictive criteria of known risk of PD including
    • Rapid eye movement sleep behavior disorder (RBD), possible, probable or definite, OR
    • Hyposmia defined as less than 10th percentile on University of Pennsylvania Smell Identification Test (UPSIT), age and gender adjusted, OR
    • Known genetic variants associated with PD risk, AND Confirmed eligible DAT scan.
  • Male or female age 30 or older at Screening Visit.
  • Able and willing to complete all aspects of the study, including at home smartphone app and Zoom telehealth assessments
  • Able to provide informed consent.
    • Age \& Sex Matched Healthy Control:
  • Male or female age 30 years or older at Screening visit.
  • Able and willing to complete all aspects of the study, including at home smartphone app and Zoom telehealth assessments
  • Able to provide informed consent.

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

Full criteria on ClinicalTrials.gov

Sites (1)

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

SiteCityCountrySite status
Northwestern University
Coordinator of this site? Confirm its status
ChicagoUnited StatesUnknown status

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