Vision-based Assessment of Joint Extensibility in Ehlers Danlos Syndrome

NCT ID: NCT05366114

Last Updated: 2023-11-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Total Enrollment

225 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-04-26

Study Completion Date

2024-12-31

Brief Summary

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Ehlers Danlos Syndrome (EDS) is a heterogenous group of genetic disorders with 13 identified subtypes. Hypermobile EDS (hEDS), although the most common subtype of EDS, does not yet have an identified genetic mutation for diagnostic confirmation. Generalized joint hypermobility (GJH) is one of the hallmark features of hEDS. The scoring system used in measurement of GJH was described by Beighton. The Beighton score is calculated using a dichotomous scoring system to assess the extensibility of nine joints. Each joint is scored as either hypermobile (score = 1) or not hypermobile (score = 0). The total score (Beighton score) can vary between a minimum of 0 and a maximum of 9, with higher scores indicating greater joint laxity.

While there is moderate validity and inter-rater variability in using the Beighton score, there continue to be several challenges with its widespread and consistent application by clinicians. Some of the barriers reported in the literature include:

i) In open, non-standardized systems there can be significant variation in the method to perform these joint extensibility tests including assessing baseline measurements, ii) Determining consistent and standard measurement tools/methodology e.g. goniometer use can vary widely iii) Assessing the reliability of the cut off values and, iv) Performing full assessment prior to informing patients of possible classification of GJH positivity (low specificity and low positive predictive).

Inappropriate implementation of tests to assess GJH results in inaccurate identification of GJH and potentially unintended negative consequences of making the wrong diagnosis of EDS. The objective of this study is to create a more robust and valid method of joint mobility measurement and reduce error in the screening of EDS through use of a smartphone-based machine learning application systems for measurement of joint extensibility.

The project will:

i) Create a smart-phone enabled visual imaging app to assess the measurement of joint extensibility, ii) Assess the feasibility of using the smart-phone app in a clinical setting to screen potential EDS patients, iii) Determine the validity of the application in comparison to in person clinical assessment in a tertiary care academic EDS program. If successful, the smart-phone application could help standardize the care of potential EDS patients in an efficient and cost-effective manner.

Detailed Description

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Conditions

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Ehlers-Danlos Syndrome

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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New patients at the GoodHope EDS clinic at Toronto General Hospital

All patients seen in the EDS clinic are eligible for inclusion, regardless of their presenting diagnosis or the results of their assessments.

No intervention, additional video data collection only

Intervention Type OTHER

No intervention will be used. Consenting participants will have video recordings taken during their exam of joint hypermobility which will be analyzed at a later time

Interventions

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No intervention, additional video data collection only

No intervention will be used. Consenting participants will have video recordings taken during their exam of joint hypermobility which will be analyzed at a later time

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* All patients seen in the GoodHope EDS clinic at Toronto General are eligible for inclusion, regardless of their presenting diagnosis or the results of their assessments

Exclusion Criteria

* Patients who do not consent to participate will not be included (participants may withdraw consent at any time)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Health Network, Toronto

OTHER

Sponsor Role lead

Responsible Party

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Nimish Mittal

Medical Director - GoodHope Ehlers Danlos Syndrome Clinic

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Nimish Mittal, MD

Role: PRINCIPAL_INVESTIGATOR

GoodHope Ehlers Danlos Syndrome Clinic, Toronto General Hospital

Locations

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GoodHope EDS - Toronto General Hospital

Toronto, Ontario, Canada

Site Status

Countries

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Canada

References

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Critical Care Services Ontario, Ehlers-Danlos Syndrome Expert Panel Report, 2016. https://www.health.gov.on.ca/en/common/ministry/publications/reports/eds/Default.aspx.

Reference Type BACKGROUND

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Reference Type BACKGROUND

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Reference Type BACKGROUND

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Reference Type BACKGROUND
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Reference Type BACKGROUND

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Reference Type BACKGROUND
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Reference Type BACKGROUND

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Reference Type BACKGROUND
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Reference Type DERIVED
PMID: 36526308 (View on PubMed)

Other Identifiers

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22-5073

Identifier Type: -

Identifier Source: org_study_id