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Movement DisordersNCT05251701

Personal KinetiGraph® Clinical Validation Study

An observational study of Movement Disorders and Parkinson Disease, run by Global Kinetics Corporation at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to clinically validate new measures of the Personal KinetiGraph® (PKG®). Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Movement Disorders, Parkinson Disease
What is being tested?
Personal KinetiGraph® (PKG®) System
Type of treatment
Medical device
How many people
19 participants
Where
1 siteUnited States
Study dates
9 Dec 2022to 3 Sep 2025
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Subjects will be identified from routine clinical care

Who may be able to join

  • Able and willing to sign a written informed consent for study participation
  • Existing diagnosis of a movement disorder or a healthy control subject without diagnosis of a movement disorder

Who cannot join

  • Bedridden, wheelchair confined, or requires the regular use of an assistive gait device (e.g., walker, cane, etc.)
  • Occupation that involves repetitive movement or complete immobility (e.g., janitor, construction, or sedentary with no/limited arm movements such as a taxi driver)
  • In the investigator's or sponsor's opinion, subject has any unstable or clinically significant condition that would impair the participant's ability to complete the required PKG watch wear (e.g., subject unable to complete PKG wear instructions per Patient Instruction Manual), complete required assessments or interfere with data collection.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Tucson Neuroscience Research

    Tucson, Arizona, 85710

Other trials in United States

About this study

The purpose of this study is to clinically validate new measures of the Personal KinetiGraph® (PKG®).

Read the detailed description

This is a prospective, observational research study of the Personal KinetiGraph (PKG) System. The PKG System is intended to quantify kinematics of movement disorder symptoms in conditions such as Parkinson's disease, including tremor, bradykinesia and dyskinesia. This study aims to clinically validate new PKG assessments such as walking, Device Assisted Therapy readiness, Percent Time Bradykinesia, Percent Time Dyskinesia, fall prediction, disease progression and non-motor. The clinical validation will require enrollment of both subjects with a diagnosis of movement disorder, such as Parkinson's disease, and healthy control subjects who do not a neurological disorder.

Being tested
Personal KinetiGraph® (PKG®) System
Medical subject headings
Movement Disorders, Parkinson Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Personal KinetiGraph® (PKG®) SystemDevice

    The PKG® System includes a wrist-worn device that records and measures movement patterns in conditions such as Parkinson's disease.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Evaluation of new PKG assessments to be clinically validated for Gait/walking using movement data collected from the PKG Watch

    The PKG's step detection system and manual step counts may be compared between healthy controls and person's with Parkinson's disease, while their walking is video recorded.

    Measured: 2-3 years

  2. Evaluation of new PKG assessments to be clinically validated for Device Assisted Therapy readiness using movement data collected from the PKG Watch

    For this outcome, patients may be classified as Device Assisted Therapy (DAT) criteria positive or criteria negative. DAT readiness may be evaluated using the Movement Disorder Society-Sponsored Unified Parkinson's Disease Rating Scale (MDS-UPDRS). The MDS-UPDRS evaluates motor and non-motor symptoms in persons with Parkinson's and consists of 4 parts. Parts I and II each contain 13 questions, Part III contains 33 and Part IV contains 6. Each score ranges from 0 (normal) to 4 (severe). Higher scores indicate a greater impact of Parkinson's disease symptoms. PKG measurements may be compared to the patient's clinical characteristics and MDS-UPDRS scores.

    Measured: 2-3 years

  3. Evaluation of new PKG assessments to be clinically validated for Percent Time Bradykinesia using movement data collected from the PKG Watch (PTB)

    Data collected from the PKG system may be compared to scores from the Movement Disorder Society-Sponsored Unified Parkinson's Disease Rating Scale (MDS-UPDRS) and the Parkinson's Disease Questionnaire (PDQ-39). The MDS-UPDRS evaluates motor and non-motor symptoms in persons with Parkinson's and consists of 4 parts. Parts I and II each contain 13 questions, Part III contains 33 and Part IV contains 6. Each score ranges from 0 (normal) to 4 (severe). Higher scores indicate a greater impact of Parkinson's disease symptoms. The PDQ-39 includes 39 questions that assess Parkinson's disease health related quality of life. Each dimension total score range from 0 (never have difficulty) to 100 (always have difficulty).

    Measured: 2-3 years

  4. Evaluation of new PKG assessments to be clinically validated for Percent Time Dyskinesia (PTD) using movement data collected from the PKG Watch

    Data collected from the PKG system may be compared to scores from the Movement Disorder Society-Sponsored Unified Parkinson's Disease Rating Scale (MDS-UPDRS) and the Parkinson's Disease Questionnaire (PDQ-39). The MDS-UPDRS evaluates motor and non-motor symptoms in persons with Parkinson's and consists of 4 parts. Parts I and II each contain 13 questions, Part III contains 33 and Part IV contains 6. Each score ranges from 0 (normal) to 4 (severe). Higher scores indicate a greater impact of Parkinson's disease symptoms. The PDQ-39 includes 39 questions that assess Parkinson's disease health related quality of life. Each dimension total score range from 0 (never have difficulty) to 100 (always have difficulty).

    Measured: 2-3 years

  5. Evaluation of new PKG assessments to be clinically validated for fall prediction using movement data collected from the PKG Watch

    PKG measurements may be compared to data collected from freezing of gait questionnaire (FOG-Q) and posture analysis. The FOG-Q assesses freezing of gait severity and consists of 4 questions, each scored from 0-4. Higher scores indicates more severe freezing of gait. Step count performance may also be used to evaluate fall prediction. The PKG's step detection system and manual step counts may be compared between healthy controls and person's with Parkinson's disease, while their walking is video recorded.

    Measured: 2-3 years

  6. Evaluation of new PKG assessments to be clinically validated for disease progression using movement data collected from the PKG Watch

    Disease progression may be evaluated by predicting the levodopa response using severity levels of the Bradykinesia Score (BKS) and early morning Bradykinesia. Changes in PKG measurements may be compared to the MDS-UPDRS which evaluates motor and non-motor symptoms in persons with Parkinson's and consists of 4 parts. Parts I and II each contain 13 questions, Part III contains 33 and Part IV contains 6. Each score ranges from 0 (normal) to 4 (severe). Higher scores indicate a greater impact of Parkinson's disease symptoms.

    Measured: 2-3 years

  7. Evaluation of new PKG assessments to be clinically validated for non-motor outcomes using non-motor scales

    PKG system data may be compared to non-motor assessments such as the non-motor questionnaire (NMSQ). The NMSQ includes questions regarding non-motor symptoms such as difficulty swallowing, constipation, difficulty sleeping, cognition, mood. Higher scores indicate more non-motor symptoms.

    Measured: 2-3 years

Secondary outcomes (11)
  1. Evaluation of PKG scores to assess differences by age category

    PKG measurements will be recorded and compared across age ranges (40-90 years old as defined in the Inclusion Criteria) for subjects enrolled. Age categories from 40-59 years old, 60-79 years old and 80-90 years old will be evaluated.

    Measured: 2-3 years

  2. To compare PKG scores to standard Parkinson's disease assessments such as the Movement Disorder Specialist Unified Parkinson's Disease Scale

    The MDS-UPDRS evaluates motor and non-motor symptoms in persons with Parkinson's and consists of 4 parts. Parts I and II each contain 13 questions, Part III contains 33 and Part IV contains 6. Each score ranges from 0 (normal) to 4 (severe). Higher scores indicate a greater impact of Parkinson's disease symptoms.

    Measured: 2-3 years

  3. To compare PKG scores to standard Parkinson's disease assessments such as Parkinson's Disease Questionnaire (PDQ-39)

    The PDQ-39 includes 39 questions that assess Parkinson's disease health related quality of life. Each dimension total score range from 0 (never have difficulty) to 100 (always have difficulty).

    Measured: 2-3 years

  4. To compare PKG scores to standard Parkinson's disease assessments such as the Freezing of Gait Questionnaire (FOG-Q)

    The FOG-Q assesses freezing of gait severity and consists of 4 questions, each scored from 0-4. Higher scores indicates more severe freezing of gait.

    Measured: 2-3 years

  5. To compare PKG scores to standard Parkinson's disease assessments such as The Essential Tremor Rating Assessment Scale (TETRAS)

    TETRAS assesses essential tremor severity and its impact on activities of daily living (ADL). The ADL section includes 12 items and the performance section includes 9. Each item is rated 0-4. Higher scores indicate more severe impacts of ADL and tremor.

    Measured: 2-3 years

  6. To compare PKG scores to subject diaries

    Subject diaries will include recordings of medication times, falls, symptoms and sleep.

    Measured: 2-3 years

  7. To compare PKG scores to non-motor assessments such as the Non-Motor Symptoms Questionnaire (NMSQ)

    The NMSQ includes 30 questions, answered either yes or no, and assesses the presence, not severity, of non-motor symptoms.

    Measured: 2-3 years

  8. To compare PKG scores to sleep assessments such as Epworth Sleepiness Scale (ESS) and Parkinson's Disease Sleep Scale (PDSS)

    The ESS includes 8 questions each scored from 0-3 with a maximum score of 24. The higher the ESS score, the higher that person's average sleep propensity or 'daytime sleepiness'.

    The PDSS includes 15 questions, each rated from 0 to 10, with 0 being "Awful" or "Always" and 10 being "Excellent" or "Never".

    Measured: 2-3 years

  9. To compare PKG scores to the Montreal Cognitive Assessment (MoCA)

    The MoCA is an assessment used for detecting cognitive impairment. The scores range from 0 to 30 with 0 being the lowest and 30 being the highest.

    Measured: 2-3 years

  10. To compare PKG scores to quality of life measurements such as EuroQual 5-D (EQ-5D)

    The EQ-5D assesses health-related quality of life. Each question is scored from either 1-3 or 1-5, with 1 indicating no problems and 3 or 5 indicating extreme problems.

    Measured: 2-3 years

  11. To evaluate product usability and satisfaction for PKG Watch, docking station and PKG Portal

    PKG product usability and satisfaction questionnaires will be used to evaluate this outcome. Responses to questions range from very difficult to very easy, strongly disagree to strongly agree, very uncomfortable to very comfortable.

    Measured: 2-3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Feb 2022
  2. Study start9 Dec 2022
  3. Primary completion16 Aug 2023
  4. Study completion3 Sep 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
19 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05251701
Sponsor's protocol ID
Study 006
Status last verified
Sep 2025
First submitted
29 Oct 2021
Last updated
14 Oct 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Undecided: Any clinical study IPD may be made available to other researchers including PKG data; demographics, such as age, gender, ethnicity; medical history, such as comorbid conditions and movement disorder history. Subject data will not include any personally identifiable information.

Publications

  • Griffiths RI, Kotschet K, Arfon S, Xu ZM, Johnson W, Drago J, Evans A, Kempster P, Raghav S, Horne MK. Automated assessment of bradykinesia and dyskinesia in Parkinson's disease. J Parkinsons Dis. 2012;2(1):47-55. doi: 10.3233/JPD-2012-11071.

    PubMed 23939408
  • Horne MK, McGregor S, Bergquist F. An objective fluctuation score for Parkinson's disease. PLoS One. 2015 Apr 30;10(4):e0124522. doi: 10.1371/journal.pone.0124522. eCollection 2015.

    PubMed 25928634
  • Kotschet K, Johnson W, McGregor S, Kettlewell J, Kyoong A, O'Driscoll DM, Turton AR, Griffiths RI, Horne MK. Daytime sleep in Parkinson's disease measured by episodes of immobility. Parkinsonism Relat Disord. 2014 Jun;20(6):578-83. doi: 10.1016/j.parkreldis.2014.02.011. Epub 2014 Feb 24.

    PubMed 24674770
  • Braybrook M, O'Connor S, Churchward P, Perera T, Farzanehfar P, Horne M. An Ambulatory Tremor Score for Parkinson's Disease. J Parkinsons Dis. 2016 Oct 19;6(4):723-731. doi: 10.3233/JPD-160898.

    PubMed 27589540

Questions about this trial

What is this clinical trial studying?

An observational study of Movement Disorders and Parkinson Disease, run by Global Kinetics Corporation at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Oct 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Evaluation of new PKG assessments to be clinically validated for Gait/walking using movement data collected from the PKG Watch (time frame: 2-3 years). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05251701, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Oct 2025.

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