Neuromodulation of Lidocaine Cream Effect on Chronic Pain Patients

NCT ID: NCT03046017

Last Updated: 2023-01-03

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-08-30

Study Completion Date

2023-05-31

Brief Summary

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Chronic low back pain patients aged 21 to 60 needed for a research study of the effects of transcranial direct current stimulation (tDCS) on the analgesic effects of lidocaine cream as measured by functional Magnetic Resonance Imaging (fMRI). Study will be conducted on nine separate days not requiring an overnight stay in the hospital.

Detailed Description

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Conditions

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Chronic Low Back Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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real tDCS

In this group, the tDCS stimulates areas of the brain being examined in this study to increase their activity.

Group Type ACTIVE_COMPARATOR

tDCS

Intervention Type DEVICE

Electrical stimulation will be applied on the head to temporarily influence brain activity in specific regions.

Lidocaine cream

Intervention Type OTHER

Lidocaine cream will be applied to reduce pain sensitivity (analgesia).

Control cream

Intervention Type OTHER

A neutral cream will be applied as a control.

sham tDCS

In this group, sham tDCS does not provide real stimulation though participants will not know this until the debriefing at the end of the study. Sham will be used to determine if the results of this study are due to the tDCS or other reasons.

Group Type SHAM_COMPARATOR

tDCS

Intervention Type DEVICE

Electrical stimulation will be applied on the head to temporarily influence brain activity in specific regions.

Lidocaine cream

Intervention Type OTHER

Lidocaine cream will be applied to reduce pain sensitivity (analgesia).

Control cream

Intervention Type OTHER

A neutral cream will be applied as a control.

control group

In this group, participants will receive tDCS but will only receive a cream on their lower back.

Group Type OTHER

tDCS

Intervention Type DEVICE

Electrical stimulation will be applied on the head to temporarily influence brain activity in specific regions.

Lidocaine cream

Intervention Type OTHER

Lidocaine cream will be applied to reduce pain sensitivity (analgesia).

Control cream

Intervention Type OTHER

A neutral cream will be applied as a control.

Interventions

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tDCS

Electrical stimulation will be applied on the head to temporarily influence brain activity in specific regions.

Intervention Type DEVICE

Lidocaine cream

Lidocaine cream will be applied to reduce pain sensitivity (analgesia).

Intervention Type OTHER

Control cream

A neutral cream will be applied as a control.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Volunteers 21-60 years of age.
* Meets the Classification Criteria of chronic LBP (having low back pain for more than 6 months), as determined by the referring physician.
* At least 4/10 clinical pain on the 11-point LBP VAS (criteria recommended by Dworkin et al.)
* At least a 10th grade English-reading level; English can be a second language provided that the patients understand all questions used in the assessment measures.

Exclusion Criteria

* Specific causes of back pain (e.g., cancer, fractures, spinal stenosis, infections).
* Complicated back problems (e.g., prior back surgery, medicolegal issues).
* The intent to undergo surgery during the time of involvement in the study.
* History of cardiac, respiratory, or nervous system disease that, in the investigator's judgment, precludes participation in the study because of a heightened potential for adverse outcome. For example: asthma, claustrophobia, epilepsy or acute eczema under the electrodes.
* Presence of any contraindications to MRI scanning. For example: cardiac pacemaker, metal implants, claustrophobia, pregnancy, cannot lie still in an fMRI scanner.
* History of medical or psychiatric illness.
* History of substance / alcohol abuse or dependence.
Minimum Eligible Age

21 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Massachusetts General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Jian Kong

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Martinos Center for Biomedical Imagin

Charlestown, Massachusetts, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Georgia Wilson, BA

Role: CONTACT

617-726-5004

Other Identifiers

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2015P001440

Identifier Type: -

Identifier Source: org_study_id

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