Electroencephalographic Characteristics of Chronic Pain in Patients With Spinal Cord Injury

NCT ID: NCT06531837

Last Updated: 2024-08-13

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

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-08-25

Study Completion Date

2026-02-28

Brief Summary

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The diagnosis of chronic pain currently lacks objective and quantifiable biomarkers. This study aims to observe the EEG characteristics of patients with chronic pain following spinal cord injury and subsequently administer analgesic interventions with remifentanil, esketamine, flurbiprofen, and spinal cord stimulation. The correlation between EEG features and pain intensity will be examined. The research aims to advance the objectification of chronic pain diagnosis and treatment.

Detailed Description

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Conditions

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Chronic Pain

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Patients without pain

Group Type SHAM_COMPARATOR

No intervention

Intervention Type OTHER

Collect resting-state EEG data and NRS scores.

Patients with chronic pain treated with esketamine

Group Type EXPERIMENTAL

Esketamine(Continuous infusion)

Intervention Type DRUG

Continuous intravenous infusion of esketamine at a dose of 0.2 mg/(kg · h). Collect resting-state EEG data and NRS scores 40 minutes after administration.

Spinal Cord Stimulation

Intervention Type DEVICE

Collect resting-state EEG data and NRS scores with the spinal cord stimulator both turned off and on.

Patients with chronic pain treated with remifentanil

Group Type EXPERIMENTAL

Remifentanil (Target-Controlled Infusion)

Intervention Type DRUG

The plasma drug concentrations of remifentanil were set at 0.5 ng/ml, 1 ng/ml, and 1.5 ng/ml. After each plasma drug concentration reached a steady state, the NRS scores were assessed, and resting-state EEG was recorded for at least 5 minutes.

Spinal Cord Stimulation

Intervention Type DEVICE

Collect resting-state EEG data and NRS scores with the spinal cord stimulator both turned off and on.

Patients with chronic pain treated with flurbiprofen

Group Type EXPERIMENTAL

Flurbiprofen (Single intravenous injection)

Intervention Type DRUG

Single intravenous injection of Flurbiprofen at a dose of 100 mg. Collect resting-state EEG data and NRS scores 10 minutes after administration.

Spinal Cord Stimulation

Intervention Type DEVICE

Collect resting-state EEG data and NRS scores with the spinal cord stimulator both turned off and on.

Interventions

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Esketamine(Continuous infusion)

Continuous intravenous infusion of esketamine at a dose of 0.2 mg/(kg · h). Collect resting-state EEG data and NRS scores 40 minutes after administration.

Intervention Type DRUG

Remifentanil (Target-Controlled Infusion)

The plasma drug concentrations of remifentanil were set at 0.5 ng/ml, 1 ng/ml, and 1.5 ng/ml. After each plasma drug concentration reached a steady state, the NRS scores were assessed, and resting-state EEG was recorded for at least 5 minutes.

Intervention Type DRUG

Flurbiprofen (Single intravenous injection)

Single intravenous injection of Flurbiprofen at a dose of 100 mg. Collect resting-state EEG data and NRS scores 10 minutes after administration.

Intervention Type DRUG

Spinal Cord Stimulation

Collect resting-state EEG data and NRS scores with the spinal cord stimulator both turned off and on.

Intervention Type DEVICE

No intervention

Collect resting-state EEG data and NRS scores.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Age 18 - 65 years old;
* American Society of Anesthesiologists (ASA) I-III;
* Dextromanual;
* Chronic Pain following Spinal Cord Injury;
* Spinal cord electrical stimulator implantation under general anesthesia;
* Signed informed consent.


* Age 18 - 65 years old;
* American Society of Anesthesiologists (ASA) I-III;
* Dextromanual;
* Spinal Cord Injury Patients Without Pain;
* Spinal cord electrical stimulator implantation under general anesthesia;
* Signed informed consent.

Exclusion Criteria

* People with mental and behavioral disorders.
* Previous history of craniocerebral disease;
* History of drug and alcohol abuse;
* Patients with aphasia or inability to cooperate with the pain assessments;
* Previous adverse reaction to esketamine, opioids or NSAIDs;
* Known sever insufficiency of vitals(such as heart failure/renal dysfunction/hepatic failure);
* Patients with myasthenia gravis, bronchial asthma, or a predisposition to respiratory depression;
* Bleeding tendency;
* BMI ≥ 35 kg/m²;
* Pregnancy or lactation.

Spinal Cord Injury Patients Without Pain


* People with mental and behavioral disorders.
* Previous history of craniocerebral disease;
* History of drug and alcohol abuse;
* Patients with aphasia or inability to cooperate with the pain assessments;
* Previous adverse reaction to esketamine, opioids or NSAIDs;
* Known sever insufficiency of vitals(such as heart failure/renal dysfunction/hepatic failure);
* Patients with myasthenia gravis, bronchial asthma, or a predisposition to respiratory depression;
* Bleeding tendency;
* BMI ≥ 35 kg/m²;
* Pregnancy or lactation.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beijing Tiantan Hospital

OTHER

Sponsor Role lead

Responsible Party

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Ruquan Han

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Ruquan Han, M.D., Ph D

Role: STUDY_CHAIR

Beijing Tiantan Hospital

Locations

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Beijing Tiantan Hospital

Beijing, , China

Site Status

Countries

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China

Central Contacts

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Ruquan Han, M.D., Ph D

Role: CONTACT

8610-59976660

Facility Contacts

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Ruquan Han, M.D., Ph D.

Role: primary

8610-59976660

Other Identifiers

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zz20240512

Identifier Type: -

Identifier Source: org_study_id

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