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NCT00350402 · ClinicalTrials.gov registry record · Phase 2

Masked Faces in Parkinson Disease: Mechanism and Treatment

A Phase 2 study of Parkinson's Disease, sponsored by University of Florida.

Completed
Registry status
Phase 2
Development phase
44
Enrollment target
1
Study location

NCT00350402: Completed Phase 2 study of Parkinson's Disease, sponsored by University of Florida.

NCT00350402 is a Phase 2 study of Parkinson's Disease that has completed, run by University of Florida. The registered enrollment target is 44 participants, below the 635-participant average among 158 other Parkinson's Disease trials with a reported enrollment target (93% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00350402, a Phase 2 study of Parkinson's Disease, has completed, sponsored by University of Florida.

COMPLETED
Registry status
Phase 2
Development phase
44 participants
Enrollment target
1
Study location

Study Summary

The purpose of this study is to examine the effectiveness of high intensity respiratory muscle strength training in treating blunted facial expression in people with Parkinson disease.

Primary Outcome

Primary outcome is change in entropy score from baseline to immediate completion of 4 week intervention. Entropy is a computer derived index of facial movement that is computed by quantifying changes in pixel intensity as the face moves over a series of video frames. Entropy values range from 0 up to 100. Higher scores reflect greater movement and expressivity (desired). In this condition ("off dopamine), entropy scores were obtained when participants were tested "off" their normal dopamine medi

Conditions Studied

Interventions

  • BEHAVIORAL Respiratory muscle strength training

Study Locations (1)

Florida

  • Cognitive Neuroscience Laboratory, L3-135, McKnight Brain Institute, University of Florida - Gainesville

Trial Details

FieldValue
Enrollment Target 44 participants
Start Date 2004-12
Est. Completion 2009-11
Phase Phase 2
University of Florida

1,106 total trials

What the finished NCT00350402 record still lists

NCT00350402 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 44 participants, a relatively small participant target, below the 635-participant average among 158 other Parkinson's Disease trials with a reported enrollment target (93% lower).

The record links to 1 condition, with Parkinson's Disease appearing as the primary indexed condition, and to 1 intervention - of which Respiratory muscle strength training is the first listed.

NCT00350402 reports a single indexed study location in Florida.

Frequently Asked Questions

What is clinical trial NCT00350402 about?

NCT00350402 is a clinical study titled "Masked Faces in Parkinson Disease: Mechanism and Treatment". The purpose of this study is to examine the effectiveness of high intensity respiratory muscle strength training in treating blunted facial expression in people with Parkinson disease.

What is the current status of trial NCT00350402?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 44 participants. The study started on 2004-12. Estimated completion is 2009-11.

What conditions does trial NCT00350402 study?

This clinical trial studies the following conditions: Parkinson's Disease.

What interventions are being tested in trial NCT00350402?

The interventions under investigation include: Respiratory muscle strength training (BEHAVIORAL).

Who is sponsoring clinical trial NCT00350402?

This trial is sponsored by University of Florida, which has 1,106 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00350402 being conducted?

This trial has 1 study location across Florida. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Parkinson's Disease

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT00350402's enrollment target sits among peer trials

44 91st of 158 higher than 68 of 158 other Parkinson's Disease trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Parkinson's Disease trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00350402, the US trial registry maintained by the National Library of Medicine. NCT00350402 (small enrollment · single site footprint · completed) retrieved and formatted by PlainTrial, see methodology.