Transcranial Direct Current Stimulation and Chronic Pain
NCT ID: NCT05863494
Last Updated: 2023-05-18
Study Results
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Basic Information
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UNKNOWN
NA
40 participants
INTERVENTIONAL
2023-06-01
2023-10-31
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
Up to 40 participants will be recruited and randomly placed in either the treatment or the sham group. The randomization ratio is 1:1. Each participant has an equal chance of being assigned to each condition and each participant will be assigned to a condition independently of the other participants. The sample is small (20 each group), so in order to ensure random assignment, we will assign a unique number to every participant of the study's sample. Then, we will use a lottery method to randomly assign each number to the control or experimental group.
TREATMENT
DOUBLE
Study Groups
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Treatment
For visits 1-5 (tDCS treatment visits), the investigators will start with 0.5mA ramping up to 0.75mA for 5 minutes. Followed by a brief (8 sec) EEG recording. Then, the investigators will apply .75mA to 1mA for 5 minutes. This will also be followed by 8 second EEG recording. The final application of current will be 1mA to 1.75mA for 10 minutes followed again by 8 second EEG recording.
Transcranial Direct Current Stimulation (tDCS)
TDCS is a non-invasive brain stimulation that uses electrical currents to stimulate specific areas of the brain. A constant, low-intensity current passes through two to four electrodes, which can be placed on various locations on the head, to modulate neuronal activity. tDCS can administer anodal and cathodal stimulation to excite (depolarization) or inhibit (hyperpolarization) neuronal activity, respectively. Using low-amplitude direct currents applied via scalp electrodes to alter cortical excitability is not a novel concept. This non-pharmacological approach has held promise for decades as a way to treat a plethora of neurological and psychiatric disorders. Although tDCS is not currently FDA-approved it is considered a non-significant-risk therapy with no record of serious adverse effects.
Sham
For visits 1-5 (tDCS treatment visits),The sham group will receive 1 minute from 0.0mA to no more than 0.5mA at the initiation of the treatment after which the current will be turned off. They will still proceed with the full 20 minutes as does the treatment group but no current will be further applied as indicated in the treatment group. They will still receive EEG readings at the indicated 8 seconds after "current" is applied but will not receive the current. This is to maintain a blind trial. 0.5mA is negligible current but mimics treatment with an initial small tingle.
Transcranial Direct Current Stimulation (tDCS) sham
TDCS is a non-invasive brain stimulation that uses electrical currents to stimulate specific areas of the brain. A constant, low-intensity current passes through two to four electrodes, which can be placed on various locations on the head, to modulate neuronal activity. tDCS can administer anodal and cathodal stimulation to excite (depolarization) or inhibit (hyperpolarization) neuronal activity, respectively. Using low-amplitude direct currents applied via scalp electrodes to alter cortical excitability is not a novel concept. This non-pharmacological approach has held promise for decades as a way to treat a plethora of neurological and psychiatric disorders.
The sham group will receive 1 minute from 0.0mA to no more than 0.5mA at the initiation of the treatment after which the current will be turned off. This is to maintain a blind trial. 0.5mA is negligible current, but mimics treatment with an initial small tingle.
Interventions
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Transcranial Direct Current Stimulation (tDCS)
TDCS is a non-invasive brain stimulation that uses electrical currents to stimulate specific areas of the brain. A constant, low-intensity current passes through two to four electrodes, which can be placed on various locations on the head, to modulate neuronal activity. tDCS can administer anodal and cathodal stimulation to excite (depolarization) or inhibit (hyperpolarization) neuronal activity, respectively. Using low-amplitude direct currents applied via scalp electrodes to alter cortical excitability is not a novel concept. This non-pharmacological approach has held promise for decades as a way to treat a plethora of neurological and psychiatric disorders. Although tDCS is not currently FDA-approved it is considered a non-significant-risk therapy with no record of serious adverse effects.
Transcranial Direct Current Stimulation (tDCS) sham
TDCS is a non-invasive brain stimulation that uses electrical currents to stimulate specific areas of the brain. A constant, low-intensity current passes through two to four electrodes, which can be placed on various locations on the head, to modulate neuronal activity. tDCS can administer anodal and cathodal stimulation to excite (depolarization) or inhibit (hyperpolarization) neuronal activity, respectively. Using low-amplitude direct currents applied via scalp electrodes to alter cortical excitability is not a novel concept. This non-pharmacological approach has held promise for decades as a way to treat a plethora of neurological and psychiatric disorders.
The sham group will receive 1 minute from 0.0mA to no more than 0.5mA at the initiation of the treatment after which the current will be turned off. This is to maintain a blind trial. 0.5mA is negligible current, but mimics treatment with an initial small tingle.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Gender: Any
* Ethnicity: Any
* Chronic pain (\> 3-months); No current use of nonprescription opioids (\< 1 month); Able and willing to comply with scheduled visits and other study-related procedures to complete the study; Willing and able to give informed consent.
Exclusion Criteria
* History of drug or alcohol abuse or dependence (as per DSM-IV criteria) within the last 3 months (except nicotine and caffeine).
* Subject is on regular benzodiazepine medication which it is not clinically appropriate to discontinue.
* Subject requires a rapid clinical response due to inanition, psychosis or high suicide risk.
* Neurological disorder or insult, e.g., recent stroke (CVA), which places subject at risk of seizure or neuronal damage with tDCS.
* Subject has metal in the cranium, skull defects, or skin lesions on scalp (cuts, abrasions, rash) at proposed electrode sites.
* Female subject who is pregnant.
* Participants who are not fluent in English will not be included in the trial for safety reasons: a) It is usually not possible to have an interpreter reliably available every weekday for up to 4 weeks and it is not safe to give tDCS to a subject who cannot tell us immediately of any side effects; Note that translation of the proposed ACT activity into English has not been validated and that we cannot be confident that they would be accurately translated and validated.
* Minors
* Older than 79 years old
* last use \>24 months
* history of EEG or any electrical implant (i.e. pacemaker)
* history of Parkinson's, diagnosis of bipolar, schizophrenia/schizo-affective d/o, OCD, epilepsy, alzheimers
* taking antipsychotic drugs
18 Years
79 Years
ALL
No
Sponsors
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ni20
UNKNOWN
University of Arizona
OTHER
Responsible Party
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Allison J Huff Macpherson
Assistant Professor, Family and Community Medicine
Principal Investigators
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Allison J Huff, DHEd
Role: PRINCIPAL_INVESTIGATOR
University of Arizona
Locations
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University of Arizona
Tucson, Arizona, United States
Countries
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Central Contacts
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Facility Contacts
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References
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Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Document Type: Informed Consent Form
Other Identifiers
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STUDY00001896
Identifier Type: -
Identifier Source: org_study_id
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