NCT06982820 · GrayMatters Health Ltd.
Self Neuro-modulation Therapy for Major Depressive Disorder (MDD) With Anhedonia
What this study is about
The purpose of this research is to learn more about a new treatment for individuals with Major Depressive Disorder (MDD) with heightened symptoms of anhedonia (i.e. loss of pleasure or interest in activities). The treatment is called Prism, and it is a software device intended for a novel form of neurofeedback training to be used in a clinic setting.
View original scientific description
The purpose of this research is to learn more about a new treatment for individuals with Major Depressive Disorder (MDD) with heightened symptoms of anhedonia (i.e. loss of pleasure or interest in activities). The treatment is called Prism, and it is a software device intended for a novel form of neurofeedback training to be used in a clinic setting. During this study, the subject will use different techniques to measure brain activities, including magnetic resonance imaging (MRI) and electroencephalography (EEG).
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Primary Diagnosis of MDD with Anhedonia, established according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition Text Revision (DSM5TR) - HDRS-17 score of ≥20, SHAPS-C score of ≥25.
- Fluency in written and spoken English.
- Able intellectually to understand the instructions
- Ability to give signed, informed consent either written or electronic (via REDCap eConsent).
- Normal or corrected-to-normal vision and hearing.
- Ability to adhere to the study schedule.
- Completed at least one antidepressant treatment course at an adequate dose and duration in the current episode per the ATRQ.
Exclusion criteria
- Contraindications to MRI (e.g., metal in the body, claustrophobia).
- Any suicidal behavior in the past 1 year (i.e., actual attempt, interrupted attempt, aborted attempt, or preparatory acts or behavior) assessed using Columbia -Suicide Severity Rating Scale (C-SSRS) prior to screening and during the screening period.
- Diagnosis for current moderate or severe substance or alcohol use disorder (SUD/AUD) within the past month (as defined in DSM-5-substance use disorder).
- Any unstable medical condition, as per the clinical judgement of the investigator.
- Any change in, or initiation of, fluoxetine within the past 8 weeks or of other SSRIs/SNRIs antidepressants, bupropion, stimulants, or other psychiatric medications within the past 4 weeks.
- Recent initiation (within the past 2 months) of psychotherapy; continuation of established maintenance supportive therapy will be permitted.
- Enrollment in another therapeutic clinical study at screening or within 2 months prior to screening or intended enrollment within the duration of this study.
Where
- Providence, Rhode Island
- Houston, Texas
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced May 1, 2026 · Source of record for eligibility and locations