NCT03613012

Brief Summary

Pain is a subjective feeling,and pain experts have been trying to assess it using objective methods. Pain index (PI) is extracted from electroencephalographic as an objective diagnostic tool for chronic pain. This study is a diagnostic test aims to explore the reliability and validity of PI, with numerical rating scale(NRS) as the gold standard.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
111

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Aug 2018

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 11, 2018

Completed
22 days until next milestone

First Posted

Study publicly available on registry

August 2, 2018

Completed
4 days until next milestone

Study Start

First participant enrolled

August 6, 2018

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 2, 2018

Completed
8 days until next milestone

Study Completion

Last participant's last visit for all outcomes

November 10, 2018

Completed
Last Updated

November 30, 2018

Status Verified

November 1, 2018

Enrollment Period

3 months

First QC Date

July 11, 2018

Last Update Submit

November 29, 2018

Conditions

Keywords

Pain assessmentelectroencephalographicnumerical rating scalepain index

Outcome Measures

Primary Outcomes (1)

  • Pain index

    Pain index is extracted from EEG accessed by a multifunctional monitor HXD-1

    30 mins after treatment

Secondary Outcomes (1)

  • Hamilton Anxiety and Depression Scale(HADS)

    baseline

Study Arms (1)

Pain index

Pain index will be extracted from the EEG of chronic pain patients before and after pain treatments

Diagnostic Test: Pain index

Interventions

Pain indexDIAGNOSTIC_TEST

Record the patients' EEG and extract pain index before and after pain treatments

Pain index

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The sample capacity calculation is based on the sensitivity/specificity of the diagnostic test allowed a minimum sensitivity of 80%, a minimum specificity of 80%, a significance level α of 0.01, an allowable error of 0.1 strictly.The estimated sample is 107 patients. Considering a predicted shedding rate of 10%, 118 patients will be enrolled.

You may qualify if:

  • chronic pain patients diagnosed lumbar disc herniation, osteoarthritis or other chronic pain diseases, who will received injection therapy or shockwave therapy at clinic.
  • patients age 18-80 years-old
  • patients with an NRS pain score ≥ 4,
  • patients who voluntarily participate in the test and sign the informed consent forms.

You may not qualify if:

  • patients with central nervous system disorders, such as epilepsy, cerebral infarction, or cerebral hemorrhage,
  • patients with mental disorders,
  • patients with a history of long-term use of psychotropic drugs.
  • patients who can't understand NRS.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Peking University People's Hospital

Beijing, Beijing Municipality, 100043, China

Location

MeSH Terms

Conditions

Chronic Pain

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Yi Feng, MD

    Peking University People's Hospital

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief Physician

Study Record Dates

First Submitted

July 11, 2018

First Posted

August 2, 2018

Study Start

August 6, 2018

Primary Completion

November 2, 2018

Study Completion

November 10, 2018

Last Updated

November 30, 2018

Record last verified: 2018-11

Data Sharing

IPD Sharing
Will not share

Locations