Treatment-refractory schizophrenia

This pilot study will test whether deep brain stimulation (DBS) can help people with schizophrenia who still hear voices and have delusions despite trying multiple medications. Fifteen adults will have electrodes placed in a brain region linked to schizophrenia symptoms. The goal…

This study tests whether a noninvasive technique called temporal interference stimulation can ease symptoms in people with treatment-resistant schizophrenia. The approach uses two high-frequency electrical currents to create a low-frequency effect deep in the brain, targeting a r…

This study tests whether deep brain stimulation (DBS) — a device that sends electrical pulses to specific brain areas — can help people with schizophrenia that hasn't improved with medication. Ten adults aged 18-55 will have electrodes implanted in two brain regions and receive d…

This study tests whether adding cannabidiol (CBD) to the standard drug clozapine helps people with treatment-resistant psychosis. 250 participants will receive either CBD or a placebo for 12 weeks. Researchers will measure symptom changes and check safety.

This study compares two types of brain stimulation—accelerated theta burst and high-frequency TMS—against a sham (fake) treatment to see if they can improve cognitive problems like memory and attention in people with treatment-resistant schizophrenia. Ninety adults on clozapine w…

This early-phase pilot study will test whether a nasal spray containing exosomes from human dental stem cells is safe and feasible for people with treatment-resistant schizophrenia who have persistent negative symptoms like social withdrawal and lack of emotion. Fifteen long-term…

This study tests whether aerobic exercise, alone or with a gentle brain stimulation technique called tDCS, can improve thinking and memory in people with treatment-resistant schizophrenia. About 160 participants will be assigned to exercise, tDCS plus exercise, or a control group…