- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02928237
Effect of tDCS on Chronic Abdominal Visceral Pain in HCC Patients
Effect of the Transcranial Direct Current Stimulation (tDCS) of the Motor Cortex on Chronic Abdominal Pain in Patients With Hepatocellular Carcinoma
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This study will be carried out in Assiut University Hospital pain clinic and in participation of department of neuropsychiatry in Assiut University Hospital. After obtaining approval of hospital ethical committee, informed written consent will be taken from all patients with malignant visceral pain to be involved in this study.
In these study investigators test the hypothesis that Does transcranial direct current stimulation induce analgesia in chronic abdominal visceral pain due to liver cancer ?
Preparation:
The patient will seat in a comfortable chair and will be asked to relax as much as possible. tDCS was delivered using a battery driven DC stimulator (neuroConn Gmbh,98693 llmenau, Germany). Current was delivered by electrodes encased in sponge pads soaked with 1% saline solution. The machine was kept behind the participant and out of their view at all times. For both the active and sham conditions, the anode was placed over the motor cortex of the patient and the cathode was placed over the contralateral supraorbital region. Electrodes were secured using soft elastic straps.
In the active stimulation condition a constant current of 2mA intensity was applied for 30 minutes with a 5-second ramp phase at the beginning. In the sham stimulation condition the machine was activated for 30 seconds using identical parameters but was then switched off without the patient's knowledge. This sham control is commonly employed because over the initial 30 seconds of stimulation, an initial sensation of tingling under the electrode fades away. Patients are less likely to distinguish active from sham conditions if the initial period of tingling is present in both.
Patients were evaluated by verbal descriptor scale (VDS), visual analog scale (VAS), and Hamilton rating scale for depression (HAM-D) at the baseline, after 1st, 5th, 10th session, and 1 month after end of sessions.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- All patients of above 18 years old, with malignant visceral pain due to primary liver cancer or on top of cirrhosis, resistant to medical treatment for at least 2 months or associated with significant adverse effect from medication will be involved in this study
Exclusion Criteria:
- Investigators will exclude patients with intracranial metallic devices or with pacemakers or any other device. Investigators also exclude those with extensive myocardial ischemia and those known to have epilepsy.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Real tDCS
In the active stimulation condition a constant current of active transcranial direct current stimulation (tDCS) of 2mA intensity was applied for 30 minutes,over primary motor cortex M1.
The treatment was repeated every day for 10 consecutive days.
|
A battery driven DC stimulator (neuroConn Gmbh,98693 llmenau, Germany)
|
Placebo Comparator: Sham tDCS
Sham tDCS was applied using the same parameters but only for 30 seconds then the machine is deactivated.
|
A battery driven DC stimulator (neuroConn Gmbh,98693 llmenau, Germany)
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
visual analog scale (VAS)
Time Frame: one month
|
measurement of reduction of chronic abdominal pain in cancer liver patients.
|
one month
|
verbal descriptor scale (VDS)
Time Frame: one month
|
measurement of reduction of chronic abdominal pain in cancer liver patients.
|
one month
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Hamilton rating scale for depression (HAM-D)
Time Frame: one month
|
Measurement of reduction of depression
|
one month
|
Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 481186
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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