Targeting Large-scale Networks in Depression With Real-time fMRI Neurofeedback
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 58
- 试验地点
- 2
- 主要终点
- Blood Oxygen Level Dependent (BOLD) signal change during the active > passive contrast during the localizer session
研究概览
简要总结
The purpose of this study is to develop a technique called real time fMRI neurofeedback.
This technique uses a regular MRI scanner, except that special software allows the researchers to measure activity in participants brain, using fMRI, and then give information, in the form of a feedback signal, which indicates brain activity in real time, while in the MRI scanner. The larger goal of this study is to develop ways to help people, including those with depression, better regulate brain activity. The researchers think that this may be helpful in managing psychiatric symptoms.
This study design has three phases, however, only two phases (phase 2 and 3) are considered to be a clinical trial. Phase 2 (part 2) was registered and is NCT05934604. This is the phase 3 (part 3) for this project and is funded by the National Institutes of Health.
详细描述
Part 3/Phase 3 study hypothesis are:
- Rest Focus Task (RFT) will activate brain networks at the individual subject level to provide a viable signal for Neurofeedback (NF)
- At the group level, RFT in the Active>Passive contrast will activate canonically defined salience network
- Neurofeedback-reinforced practice over the session will increase RFT activation over the course of the training session, comparing RFT activation, without NF, before and after NF runs.
- Valid Neurofeedback will increase RFT activation more compared to sham NF (assessed during the no-NF session).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- Double (Participant, Care Provider)
入排标准
- 年龄范围
- 18 Years 至 55 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Meets The Diagnostic and Statistical Manual of Mental Disorders five (DSM5) criteria for Major Depressive Disorder, single or recurrent, active or in partial remission
- •Patient Health Questionnaire (PHQ9) greater or equal (≥)6, and approximately (~) 50% with PHQ9≥10
- •If participants are taking antidepressant medications, on stable dosage for 4 weeks
- •No history of active substance use disorder in the past 6 months
- •Absence of suicidal thoughts with plans or intentions, as assessed by Columbia Suicide Severity Rating Scale (C-SSRS)
- •If a woman of child-bearing age, not pregnant or trying to become pregnant
- •Ability to tolerate small, enclosed spaces without anxiety
- •No metals, implants or metallic substances within or on the body that might cause adverse effects to the subject in a strong magnetic field, or interfere with image acquisition, e. g. aneurysm clips, retained particles (for example metal workers with exposures, protocol has more details), etc.
- •Size compatible with scanner gantry (per protocol)
- •Ability and willingness to give informed consent to participate.
排除标准
- •Size not compatible with scanner
- •Not meeting diagnostic criteria for bipolar disorder, schizophrenia, other psychosis, obsessive-compulsive disorder, active eating disorder or Post-traumatic stress disorder (PTSD)
- •No history of serious neurological illness (including, but not limited to, seizures/epilepsy) or current medical condition that could compromise brain function, such as liver failure
- •No history of closed head injury, e. g. loss of consciousness > ~5 min, hospitalization, neurological sequela
研究组 & 干预措施
Real-time neurofeedback
Subjects will complete three visits with one or two fMRI sessions after initial assessment and training visit. The first session will be to introduce practice tasks using the mock scanner. In the second visit participants will have an fMRI. The study team will review the fMRI results to decide if participants will continue on the study (must exhibit a specific pattern of activation) and have the second fMRI at the third visit.
干预措施: FMRI with real time feedback (Other)
Sham controlled feedback
Subjects will complete three visits with one or two fMRI sessions after initial assessment and training visit. The first session will be to introduce practice tasks using the mock scanner. In the second visit participants will have an fMRI. The study team will review the fMRI results to decide if participants will continue on the study (must exhibit a specific pattern of activation) and have the second fMRI at the third visit.
干预措施: FMRI with sham controlled feedback (Other)
结局指标
主要结局
Blood Oxygen Level Dependent (BOLD) signal change during the active > passive contrast during the localizer session
时间窗: Approximately 40 minutes (during MRI)
Using standard pre-processing pipelines, the general linear model, convolved with the hemodynamic response function, will be used to predict change in BOLD signal for the contrast of the active compared to the passive conditions. Z-transformed t-statistics will be corrected for multiple comparisons in the region of interest (salience network)
BOLD signal change during the active>passive contrast, comparing baseline with transfer runs (no NF in either), during the real time functional magnetic resonance imaging neurofeedback (rtfMRI-NF) session
时间窗: Approximately 40 minutes (during MRI)
Same processing as outcome measure 2, except the contrast of active\>passive will itself be contrasted within the session (baseline compared to transfer run)
次要结局
未报告次要终点
研究者
Stephan F. Taylor
Professor of Psychiatry
University of Michigan