Brain-Computer Interface Trials Double as Technology Advances Rapidly

Executive Briefing

• Estimates show roughly 150 people now have brain electrodes implanted, more than doubling since 2023.
• ALS patient Casey Harrell uses a BCI for nearly three years to speak, work, and read to his daughter.
• China became the first country to approve a BCI for medical use, with Shanghai-based Neuracle leading the way.
• Companies including Neuralink, Synchron, and Precision Neuroscience are all actively expanding clinical trials.
• Researchers caution BCIs remain experimental, with unresolved questions about longevity and broader patient eligibility.