Rapid entrainment and signal-guided neuromodulation for behavioral health: a transdiagnostic, personalized neuromodulation and neuroimmune study to develop objective endpoints and Risk/Durability profiles for Rapid-Acting interventions (RESYNC-BH)

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 18 to 70 years at the time of consent * Able to understand the study and provide signed informed consent * Willing and able to comply with study procedures and follow-up assessments for approximately 12 months * Presence of clinically significant behavioral-health symptoms and/or functional impairment in at least one of the following domains, as determined by clinical interview and standardized measures: * Depressive symptoms * Anxiety symptoms * Trauma- and stressor-related symptoms * Substance-related symptoms not requiring immediate detoxification * Attentional/impulsivity or executive-function symptoms * A formal DSM-5 diagnosis is not required if symptoms and impairment are clinically meaningful and appropriate for outpatient behavioral-health intervention * Medically stable, in the judgment of the investigator, for outpatient behavioral-health treatment and applicable noninvasive neuromodulation or multisensory entrainment * If taking psychotropic or other relevant medications, on a stable dose for at least 4 weeks before baseline, with no planned changes during the acute intervention phase except as clinically necessary * Sufficient proficiency in English or another IRB-approved language to understand study procedures and provide informed consent, with approved translated materials or interpreter support when available * If of reproductive potential, agrees to applicable pregnancy-prevention requirements during the acute intervention phase * Willing to follow study lifestyle and safety requirements, including restrictions on alcohol and substance use before study sessions and applicable post-session safety recommendations Exclusion Criteria: * History of seizure disorder or other condition that, in the investigator's judgment, would make exposure to stroboscopic or patterned light stimulation unsafe * Severe photosensitivity or light sensitivity that could be worsened by exposure to flashing or patterned light * Implanted electronic or other medical device that is incompatible with study neuromodulation procedures * Unstable or clinically significant cardiovascular, neurologic, or other medical condition that could make study participation unsafe * Unstable or high-risk psychiatric condition, including: * Recent suicide attempt or current imminent suicide risk * Active psychosis * Uncontrolled mania or other acute psychiatric instability requiring a higher level of care * Pregnant or breastfeeding at screening or during participation * Acute intoxication or inability/unwillingness to comply with study safety restrictions regarding alcohol or non-prescribed/recreational substance use before study sessions * Unstable or rapidly changing psychotropic medication regimen at baseline * Concurrent participation in another interventional trial targeting behavioral health or neuromodulation that, in the investigator's judgment, would confound study outcomes or create a safety concern * Any other medical, psychiatric, cognitive, or behavioral condition that, in the investigator's judgment, would prevent safe participation or meaningful completion of study procedures