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Status unknownNCT03702101Updated Oct 10, 2018

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

An observational study in Orofacial Pain, sponsored by The University of Hong Kong. Status unknown at 1 site in Hong Kong. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2018-10-10.

Sponsored by The University of Hong Kong · Observational

The sponsor has not verified this record recently (last verified Oct 2018), so the status shown — last known as Not yet recruiting — may be out of date.
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
24
Ages
18 Years to 65 Years
Sex
All
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Study summary

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

Read the 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 orofacial pain (OFP), as compared with an already commercialized device. This study will examine if the novel APD is more reliable than the traditional devices currently available in the market. Moreover, this study will also use the APD device to test the cutaneous electrical impedance of the ear and further assess whether the orofacial auricular points is with the lowest electrical impedance in the OFP population. This pilot study will enroll 12 OFP patients from the Department of Anesthesiology, Queen Mary Hospital, the University of Hong Kong. 12 healthy subjects will be recruited as control from the university community. Auricular acupoint detection will be accomplished with the new device and a control device. The electrical impedance will be detected and recorded. Patient's condition will also be evaluated by the Penn Facial Pain Scale-Revised (2018). 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 the orofacial area and the Penn Facial Pain Scale score.

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Conditions studied

  • Orofacial Pain

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Keywords

  • orofacial pain
  • auricular point
  • electrical impedance
03

In context

Facial Pain

186 studies on the registry are indexed under Facial Pain; 58 are open to participants now.

This study's planned enrollment of 24 is below the median of 135 across 45 observational studies indexed under Facial Pain.

Browse Facial Pain studies →

Lead sponsor

The University of Hong Kong is the lead sponsor of 1,262 studies on the registry; 340 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Sampling method
Probability sample

Study population

OFP patients visiting the inpatient or outpatient unit of the Department of Anesthesiology Queen Mary Hospital will be referred to this study by an anesthesiologist.

Inclusion criteria

  • When pain attacks, the average unilateral orofacial pain severity >=5 point measured by a 10-point VAS scale;
  • Patient with trigeminal neuralgia can be diagnosed according to Trigeminal neuralgia: New classification and diagnostic grading for practice and research (Neurology, 2016);
  • Other kinds of orofacial pain can be diagnosed based on the patient's symptoms;
  • Provide written inform consent;
  • Free of any other diagnosed psychological conditions;

Exclusion criteria

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;
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Study design

Observational model
Other
Time perspective
Prospective
Enrollment
24 participants (estimated)
Target follow-up
15 Days
Patient registry
Yes

Groups and cohorts

  • Orofacial pain 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

  • 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

Interventions

  • DeviceAuricular point detector

    This device is only for auricular detection. No additional intervention will be delivered.

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What researchers measure

Primary outcomes

  1. cohen's kappa coefficient

    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 in detecting OFP-related auricular point.

    Time frame: baseline

Secondary outcomes

  1. the Visual Analogue Scale (VAS)

    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.

    Time frame: baseline

  2. the Penn Facial Pain Scale-Revised (Penn-FPS-R)

    The Penn-FPS-R is a new 12-item Health-Related Quality of Life outcome measure with content validity that can be used to assess and monitor the impact of Trigeminal Neuralgia and facial pain treatment interventions in both clinical practice and research. This scale uses the 0-10 numeric rating scale (NRS) to quantify the pain intensity and its impact on life quality, where 0 indicates no pain/impact and 10 indicates worst pain/impact. The sum of the rated NRS score will be calculated.

    Time frame: baseline

  3. self-developed questionnaire on patient's attitude towards complementary therapies for pain management

    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.

    Time frame: baseline

  4. The diagnostic specificity of the device

    The specificity test is a test to validate the ability of a diagnosis to tell the 'non-disease' among those without the disease.

    Time frame: baseline

  5. The diagnostic sensitivity of the device

    The sensitivity test is a test to validate the ability of a diagnosis to tell the 'disease' among those with the disease.

    Time frame: baseline

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Study locations

1 site
  • Queen Mary Hospital, HKU
    Hong Kong, Intl 852, Hong Kong
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References and documents

Individual participant data

Plan to share: No — IPD sharing will be at the discretion of the study-involved participants and the principal investigator.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 10, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03702101
Lead sponsor
The University of Hong Kong
Collaborators
Queen Mary Hospital, Hong Kong, City University of Hong Kong
Responsible party
Sponsor
First posted
Oct 10, 2018
Start date
Oct 15, 2018 (estimated)
Primary completion
Jan 31, 2019 (estimated)
Completion
Mar 31, 2019 (estimated)
Last update
Oct 10, 2018

Study contacts

Mingxiao Yang, PhD
Contact
mingxiaoyang@hotmail.com
852-6316 1954
Lixing Lao, PhD
principal investigator · The University of Hong Kong

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Oct 2018. You cannot join it, but the record below documents what was studied.

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