Detecting Auricular Points in KOA by a Novel APD (APD-KOA)

October 8, 2018 updated by: The University of Hong Kong

Detecting Auricular Points Among Patients With Knee Osteoarthritis by A Novel Auricular Point Detector (APD): A Pilot Diagnostic Accuracy Study

This is a pilot diagnostic accuracy study conducted to assess the diagnostic ability of a novel APD for auricular point detection among patients with knee osteoarthritis (KOA), as compared with an already commercialized device.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The present study is a pilot diagnostic accuracy study conducted to assess the diagnostic ability of a novel APD for auricular point detection among patients with knee osteoarthritis, as compared with an already commercialized device. The investigators will test if the novel APD could provide a more reliable and quantifiable diagnosis than traditional devices currently available in the market; They will also use the APD device to test whether the cutaneous electrical impedance detected from the corresponding auricular points by the novel device is the lowest in the knee and lower limb area in the KOA population. As a pilot study, 12 patients with KOA will be recruited from the Department of Anesthesiology, Queen Mary Hospital, the University of Hong Kong. 12 healthy subjects will be recruited from the university community. Auricular acupoint detection will be accomplished with the new device and a control device. The electrical impedance will be measured and recorded. Patient's condition will also be evaluated by the Knee Injury and Osteoarthritis Outcome Score (KOOS) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). The specificity and sensitivity of the auricular point detection by the APD device will be calculated. Cohen's kappa coefficient (κ) will be used to test the inter-methods reliability, test-retest reliability, and inter-tester reliability. Moreover, the Pearson Correlation Coefficient will be used to test the correlation between the electrical impedance of the auricular point of knee and the KOOS score and WOMAC score.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
24

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Hong Kong
    • Intl
      • Hong Kong, Intl, Hong Kong, 852
        • Queen Mary Hospital, HKU

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

KOA patients with surgical schedule will be referred to this study by an anesthesiologist from the inpatient or outpatient unit of the Department of Anesthesiology Queen Mary Hospital.

Description

Inclusion Criteria:

  • Average daily knee pain >=5 point measured by a 10-point VAS scale;
  • Diagnosed KOA of any reason;
  • The different patient categories;
  • Patients with knee osteoarthritis enrolled for knee arthroplasty, osteotomies around the knee, cartilage repair, or anterior cruciate ligament-deficient knees enrolled for anterior cruciate ligament reconstruction;
  • Surgical plan in the coming month after inclusion;
  • Provide written inform consent;
  • Free of any other diagnosed psychological conditions;

Exclusion Criteria:

  • with any other diseases such as cardiovascular, renal, neurological, digestive, hepatic, respiratory disease;
  • Pregnancy or lactation;
  • Participation in a clinical study that may interfere with participation in this study;
  • History of or current tobacco, alcohol use;
  • Anything that would place the individual at increased risk or preclude the individual's full compliance with or completion of the study;
  • Unable to provide written informed consent due to any reason;

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Control group
This group includes healthy subject, for whom no treatment will be performed. Only auricular point detection by the auricular point detector will be conducted.
Device: Auricular point detector
This device is only for auricular detection. No additional intervention will be delivered.
KOA group
Patients in this group will receive auricular point detection which is accomplished by the novel auricular point detector device. There is no addition to the patient's routine care.
Device: Auricular point detector
This device is only for auricular detection. No additional intervention will be delivered.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
cohen's kappa coefficient
Time Frame: baseline
The Cohen's kappa coefficient is a statistical test used to validate the inter-method reliability, test-retest reliability and inter-observer reliability of the device.
baseline

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
the Visual Analogue Scale (VAS)
Time Frame: baseline
The VAS is a common instrument used to measure pain intensity. The scale ranges from 0 to 10, where 0 indicates no pain and 10 indicates worst pain possible.
baseline
self-developed questionnaire on patient's attitude towards complementary therapies for pain management
Time Frame: baseline
This is a self-developed questionnaire which includes 10 items aiming to survey patient's attitude towards the use of complementary therapies for pain management. This questionnaire only includes descriptive answers to be choose. The percentage for each choice will calculated.
baseline
The diagnostic specificity of the device
Time Frame: baseline
The specificity test is a test to validate the ability of a diagnosis to tell the 'non-disease' among those without the disease.
baseline
The diagnostic sensitivity of the device
Time Frame: baseline
The sensitivity test is a test to validate the ability of a diagnosis to tell the 'disease' among those with the disease.
baseline
the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)
Time Frame: baseline
The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is a 24-item instrument used to measure pain and joint function among patients with osteoarthritis. For each item, there is a Likert 5-point scale (ranging from 0 to 4), where 0 = none and 4 = extremely. It includes three major domains, including pain, stiffness, and physical function. The total score is calculated as the sum of the items chosen divided by 96.
baseline
the Knee Injury and Osteoarthritis Outcome Score (KOOS)
Time Frame: baseline
Knee Injury and Osteoarthritis Outcome Score (KOOS) is a validated 42-item global knee score suitable for comparison of patients with knee complaints attributable to different causes. A Likert scale is used and all items have five possible answer options scored from 0 (No Problems) to 4 (Extreme Problems) and each of the five scores is calculated as the sum of the items included. Scores are transformed to a 0-100 scale, with zero representing extreme knee problems and 100 representing no knee problems as is common in orthopaedic assessment scales and generic measures. Scores between 0 and 100 represent the percentage of total possible score achieved.
baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
The University of Hong Kong

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Queen Mary Hospital, Hong Kong
City University of Hong Kong

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 15, 2018

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 31, 2019

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 31, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 3, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 8, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 11, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 11, 2018

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 8, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SCM-ACU-01

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

The IPD sharing depends on the discretion of participants and principal investigator.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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