๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-05-01

Low-Intensity Focused Ultrasound of the Amygdala for Bipolar Disorder (NCT06482762)

๐Ÿ”ต Active, Not Recruiting Early Phase1 โš™๏ธ Medical Device Protocol Sponsor: Massachusetts General Hospital

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

The specific aim of this proposed study is to investigate the feasibility and therapeutic potential of transcranial focused ultrasound (tFUS) as a treatment for bipolar disorder (BD). Specifically, the investigators will study the effects of amygdala tFUS on corticolimbic activation during an emotion regulation task in BD, the effects of amygdala tFUS on corticolimbic resting-state functional connectivity in BD, and explore the relationship between tFUS-associated changes in amygdala activity and mood symptoms. The investigators hypothesize that transcranial focused ultrasound (tFUS) of the amygdala will be associated with decreased amygdala activation and increased ventromedial prefrontal cortex activation during a modified version of the Multi-Source Interference Task (MSIT) paired with affective pictures from the International Affective Picture System (IAPS). The investigators also hypothesize that tFUS of the amygdala will be associated with increased resting-state functional connectivity between the amygdala and ventromedial prefrontal cortex. Finally, the investigators hypothesize that tFUS-associated reductions in amygdala activity could be positively correlated with reductions in depressive symptom scores and global improvement.

Who can join: Review the eligibility criteria below.

Location: Massachusetts General Hospital โ€” Boston, Massachusetts

Age range: 18 Years to 64 Years

๐Ÿงช Interventions in This Study

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (1 Sites)

  • Massachusetts General Hospital โ€” Boston, Massachusetts

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

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๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—