DepressionNCT02999607
Brain Glucose Metabolism During Transcranial Direct Current Stimulation
A study testing transcranial direct current stimulation in people with Depression, run by Medical University of Vienna at 1 site in Austria.
Trial summary
With this study we will be able to dose-dependently measure real-time glucose metabolism changes after non-invasively stimulating superficial parts of the dlPFC, a commonly used target in therapeutic tDCS applications. Read more about this study
- Who is it for?
- Ages 18 to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Depression
- What is being tested?
- transcranial direct current stimulation
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 15 participants
- Where
- 1 siteAustria
- Study dates
- Dec 2016to 1 Sep 2017
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 55 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy controls:
- Aged 18 to 55 years Somatic and psychiatric health based on medical history, physical examination, ECG, laboratory screening, SCID-I and II Willingness and competence to complete the informed consent process
- Depressed Patients:
- Current major depressive episode during unipolar major depression (MD) according to SCID-I (with HAMD>17) No other concomitant axis-I disease apart from anxiety disorder, which must be secondary to MD Standard antidepressant medication stable during the last 4 weeks
Who cannot join
- Concomitant major medical or neurological illness, including history of seizures Any current substance abuse disorder according to DSM-V (urinary test and history) including current sedative usage in MDD patients ECT, TMS or NMDA-antagonists (ketamine) during the past 6 months. Current augmentation with anti-epileptics, or other drugs affecting seizure threshold Failure to comply with the study protocol or follow the instructions of the investigators Pregnancy Participants with previous total radiation exposure dose of 30mSv over the last 10 years (according to legislation on radiation protection).
- Left-handedness
Trial locations and contacts
1 site in 1 country.
Austria1 site
Department of Psychiatry and Psychotherapy, Medical University of Vienna
Vienna, 1090
About this study
Official title: Brain Glucose Metabolism in Healthy Subjects and Depressive Patients During Transcranial Direct Current Stimulation
With this study we will be able to dose-dependently measure real-time glucose metabolism changes after non-invasively stimulating superficial parts of the dlPFC, a commonly used target in therapeutic tDCS applications. This will provide further insight if and how tDCS is capable to change one of most reliable parameters of brain metabolism.
Read the detailed description
With this study, we will be able to substantiate if regional and whole brain glucose metabolism is affected by tDCS, assess the amount of signal change in relation to different currents and measure differences in glucose metabolism under stimulation reactivity between healthy subjects and depressive patients. The objective is to investigate the changes of regional cerebral metabolic rate of glucose (rCMRglu) in the brain after transcranial direct current stimulation in healthy subjects and depressive patients. The design is a cross-sectional proof of principle study in 20 healthy subjects and 20 depressed patients. During the PET scan tDCS will be applied with varying stimulus intensity. Furthermore, subjects will undergo a second PET scan with single-blind sham stimulation in order to validate the effects of tDCS. rCMRglu will be quantified using voxel-wise and ROI-based approaches. Changes in rCMRglu associated with tDCS-application will be calculated with a general linear model in a ramp function of the task-specific glucose uptake, according to previous work in our group. Exploratory statistical testing will be done using a paired samples t-test between task and rest conditions.
- Conditions
- Depression
- Being tested
- transcranial direct current stimulation
- Keywords
- Transcranial direct current stimulation, Positron emission tomography
- Medical subject headings
- Depression
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
transcranial direct current stimulationOther
0.5 mA, 1mA, 2mA for 10 minutes each
| Study group | Role | What they receive |
|---|---|---|
| active transcranial direct current stimulation | Experimental | Stimulation at three different intensities during FDG-PET scan Receives: Other: transcranial direct current stimulation |
| Sham tDCS | Sham comparator | Comparator to active arm Receives: Other: transcranial direct current stimulation |
What is being measured
The primary outcome is the main question the study is designed to answer.
FDG-rCMRglu
regional cerebral metabolic rate of glucose
Measured: 70 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Dec 2016 (estimated)
- Study startDec 2016
- Primary completion1 Sep 2017
- Study completion1 Sep 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for DepressionStudies of the same condition, open and under way.
- More trials run by Medical University of ViennaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Non-randomised
- Intervention model
- Crossover
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 15 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medical University of Vienna
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Rupert Lanzenberger, Medical University of Vienna
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02999607
- Sponsor's protocol ID
- 3.0.30.11.16
- Status last verified
- Jan 2018
- First submitted
- 18 Dec 2016
- Last updated
- 16 Jan 2018
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 16 Jan 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Brain Glucose Metabolism in Healthy Subjects and Depressive Patients During Transcranial Direct Current Stimulation
- ClinicalTrials.gov ID
- NCT02999607
- Acronym / sponsor ID
- 3.0.30.11.16
- Conditions
- Depression
- Keywords
- Transcranial direct current stimulation, Positron emission tomography
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 15 participants (actual)
- Lead sponsor
- Medical University of ViennaUniversity, hospital or other
- Study start
- Dec 2016
- Primary completion
- 1 Sep 2017 (actual)
- Study completion
- 1 Sep 2017 (actual)
- First posted
- 21 Dec 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
With this study we will be able to dose-dependently measure real-time glucose metabolism changes after non-invasively stimulating superficial parts of the dlPFC, a commonly used target in therapeutic tDCS applications. This will provide further insight if and how tDCS is capable to change one of most reliable parameters of brain metabolism.
Detailed description
With this study, we will be able to substantiate if regional and whole brain glucose metabolism is affected by tDCS, assess the amount of signal change in relation to different currents and measure differences in glucose metabolism under stimulation reactivity between healthy subjects and depressive patients. The objective is to investigate the changes of regional cerebral metabolic rate of glucose (rCMRglu) in the brain after transcranial direct current stimulation in healthy subjects and depressive patients. The design is a cross-sectional proof of principle study in 20 healthy subjects and 20 depressed patients. During the PET scan tDCS will be applied with varying stimulus intensity. Furthermore, subjects will undergo a second PET scan with single-blind sham stimulation in order to validate the effects of tDCS. rCMRglu will be quantified using voxel-wise and ROI-based approaches. Changes in rCMRglu associated with tDCS-application will be calculated with a general linear model in a ramp function of the task-specific glucose uptake, according to previous work in our group. Exploratory statistical testing will be done using a paired samples t-test between task and rest conditions.
Study design
- Primary purpose
- Basic science
- Allocation
- Non-randomised
- Intervention model
- Crossover
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| active transcranial direct current stimulation | Experimental | Other: transcranial direct current stimulationStimulation at three different intensities during FDG-PET scan |
| Sham tDCS | Sham comparator | Other: transcranial direct current stimulationComparator to active arm |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Aged 18 to 55 years Somatic and psychiatric health based on medical history, physical examination, ECG, laboratory screening, SCID-I and II Willingness and competence to complete the informed consent process
- Current major depressive episode during unipolar major depression (MD) according to SCID-I (with HAMD>17) No other concomitant axis-I disease apart from anxiety disorder, which must be secondary to MD Standard antidepressant medication stable during the last 4 weeks
Key exclusion criteria (2 listed)
- Concomitant major medical or neurological illness, including history of seizures Any current substance abuse disorder according to DSM-V (urinary test and history) including current sedative usage in MDD patients ECT, TMS or NMDA-antagonists (ketamine) during the past 6 months. Current augmentation with anti-epileptics, or other drugs affecting seizure threshold Failure to comply with the study protocol or follow the instructions of the investigators Pregnancy Participants with previous total radiation exposure dose of 30mSv over the last 10 years (according to legislation on radiation protection).
- Left-handedness
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| transcranial direct current stimulation0.5 mA, 1mA, 2mA for 10 minutes each | Other | Sham tDCS, active transcranial direct current stimulation |
Primary outcome
FDG-rCMRglu
Time frame: 70 minutes
regional cerebral metabolic rate of glucose
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Jan 2018.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing transcranial direct current stimulation in people with Depression, run by Medical University of Vienna at 1 site in Austria.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 16 Jan 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Austria. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
FDG-rCMRglu (time frame: 70 minutes). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Jan 2018; AzTrials last refreshed its copy on 31 Oct 2026.