Clinical trials
Treatment Resistant Schizophrenia clinical trials
Below are recruiting treatment resistant schizophrenia clinical trials, each written for real people, not researchers. We’re tracking 71 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07166289Recruiting
Ultrasound treatment for tough depression
This study uses focused ultrasound to stimulate brain circuits in people with treatment-resistant depression. It aims to see if this can help when other treatments haven't worked.
Tulsa, OklahomaAges 18–65 - NCT06524830RecruitingPhase 2
Testing VLS-01 film for treatment-resistant depression
This trial tests an experimental film placed inside the cheek (VLS-01) against a placebo to see if it helps people whose depression hasn't improved with standard antidepressants. If you have tried at least two antidepressants without success, this study may be an option for you.
Tucson, ArizonaAges 18–65 - NCT06512220RecruitingPhase 2
Psilocybin for treatment-resistant depression brain imaging study
This study tests whether a psilocybin-based treatment can help people with depression that has not improved after trying several antidepressants. You will receive the study treatment and have brain scans to see how it affects brain connections.
Toronto, OntarioAges 18–65 - NCT06340789RecruitingPhase 2
Sodium Benzoate Added to Antipsychotics for Resistant Schizophrenia
This study tests whether adding a supplement called sodium benzoate to your current antipsychotic medication can improve symptoms in schizophrenia that hasn't responded well to standard treatments. Researchers will measure brain chemistry changes and symptom improvement over time.
Chiayi CityAges 20–55 - NCT05074732Recruiting
Study of forensic mental health admissions after a service move
This study looks at all adult admissions to Ireland’s National Forensic Mental Health Service during a specific time window. It may help improve how the new forensic service at Portrane runs in the future.
DublinAges 18 years+ - NCT07817069Recruiting
Nitraria retusa tea for weight issues caused by clozapine
This trial tests whether a tea made from the plant Nitraria retusa can help reduce the weight gain and metabolic side effects caused by the medication clozapine. If you take clozapine for schizophrenia and have gained weight, this tea might help you manage that side effect.
SousseAges 18–65 - NCT07876908Recruiting
Magnetic brain therapy for older adults with hard-to-treat depression
This trial tests a new intensive magnetic brain treatment (SAINT) for older adults whose depression has not improved with standard treatments. It aims to see if this treatment can also help with memory concerns, which are common in this group.
Costa Mesa, CaliforniaAges 65 years+ - NCT06163625Recruiting
Brain activity and memory in treatment-resistant depression
This study looks at how the brain's frontal lobe (DLPFC) works during memory tasks in people with treatment-resistant depression. It compares brain activity between depressed patients and healthy controls using MRI and possibly a brain stimulation technique (rTMS). It aims to understand why some people don't respond to standard treatments.
Toronto, OntarioAges 18–65 - NCT05952674Recruiting
Vagus nerve stimulation for long-term depression symptoms
This trial studies whether a device that stimulates the vagus nerve (VNS) can help people with treatment-resistant depression or related mood disorders that have not improved despite multiple therapies. It may help by targeting mood symptoms when other treatments haven’t worked well.
Angers, FranceAges 18 years+ - NCT07091344Recruiting
VR-based therapy for voice hearing in schizophrenia
This study tests whether a virtual reality therapy that lets you talk to an avatar of the voice you hear can help reduce distress and improve thinking skills. It's for people with schizophrenia who hear voices regularly and are on stable medication.
Barcelona, CataloniaAges 18 years+ - NCT06511908RecruitingPhase 2
Testing a new ketamine-like drug for hard-to-treat depression
This study tests a new experimental drug (2R,6R)-HNK, a chemical related to ketamine, given by IV infusion to see if it can help people with depression that hasn't improved with other treatments. The goal is to find a new option for people who have not found relief from standard antidepressants.
Bethesda, MarylandAges 18–70 - NCT06480201RecruitingPhase 1
Ketamine for treatment-resistant depression: a brain wave study
This study tests whether a single dose of ketamine can change brain wave patterns (called gamma oscillations) in people with treatment-resistant depression. Researchers want to see if these brain waves can predict who will feel better after treatment.
Houston, TexasAges 21–45 - NCT04996433Recruiting
Compare two talk therapy programs for treatment-resistant depression
This study compares two psychotherapy programs to help people who have ongoing, difficult-to-treat depression while in inpatient care. If you qualify, you’ll receive one of the therapy programs and be followed to see which approach helps depression symptoms more.
Berlin, State of BerlinAges 18–75 - NCT07856368Recruiting
Magnetic brain stimulation for persistent voices
This study tests a non-invasive brain stimulation treatment called transcranial magnetic stimulation (TMS) to reduce persistent auditory hallucinations (hearing voices) that haven't improved with antipsychotic medication. It may help people who continue to hear voices despite trying several medications.
ZurichAges 18–65 - NCT07696871RecruitingPhase 1/Phase 2
Cannabidiol oil for treatment-resistant depression
This trial tests if cannabidiol (CBD) oil can help people with major depression that has not improved with standard antidepressants. You will take CBD oil or a placebo while continuing your current antidepressant treatment to see if it improves your symptoms.
Tubarão, Santa CatarinaAges 18–69 - NCT05377177Recruiting
Brain stimulation type test for suicidal thoughts in depression
This study tests whether stimulating the brain on both sides at once versus one side can reduce suicidal thoughts in people with treatment-resistant depression. It also looks at brain “inhibition” signals to help predict who benefits.
San Diego, CaliforniaAges 18–70 - NCT06542094Recruiting
Brain stimulation for severe depression that hasn't improved with other treatments
This trial tests if deep brain stimulation (a device that sends tiny electrical pulses to mood-related brain areas) can help people with tough-to-treat depression. It uses brain-signal monitoring to see which patterns predict improvement.
Chengdu, SichuanAges 18–65 - NCT07210112RecruitingPhase 2
Psilocybin and Trazodone for tough-to-treat depression
This trial tests if taking psilocybin (a psychedelic drug) with trazodone (an antidepressant) can help people whose depression hasn't improved with at least two standard antidepressants. If you have treatment-resistant depression, this study might be an option.
ParisAges 18 years+ - NCT07686263RecruitingPhase 3
Testing a new drug to prevent schizophrenia relapse
This trial tests whether a new oral medication, KarXT, can help prevent a return of schizophrenia symptoms in people who have been stable on treatment. If you've had a hospital stay in the past year and still have some symptoms, you may be able to join.
Bentonville, ArkansasAges 18–65 - NCT07521683Enrolling by invitationPhase 2
NS-136 treatment study for schizophrenia relapse
This study tests whether NS-136, a new medication, can help people with schizophrenia who are experiencing a relapse or worsening of symptoms. The study measures how well the medication works and what side effects it causes.
ShanghaiAges 18–65 - NCT04917302RecruitingPhase 2
NMDA and anti-inflammatory add-on for treatment-resistant schizophrenia
This trial tests whether combining an NMDA “signal-supporting” treatment with an anti-inflammatory medicine can reduce symptoms in people with schizophrenia who don’t respond well to usual antipsychotic drugs. If you’ve tried at least two antipsychotics and you’re still symptomatic, this study may be worth screening for.
TaichungAges 18–65 - NCT06574360RecruitingPhase 2
Study of a dual-target drug for hard-to-treat schizophrenia
This trial tests an experimental combination treatment that targets two different brain receptors (sigma-1 and NMDA) to see if it can improve symptoms in people with schizophrenia that hasn't responded well to standard antipsychotics.
TaichungAges 18–65 - NCT04956016Recruiting
Compare two rTMS treatments for moderate to severe depression
This study tests whether a classic type of brain stimulation (rTMS) works better or the same as a deeper version for depression that keeps coming back or is ongoing. You may be offered one of the two stimulation options to see which helps reduce depressive symptoms.
PoitiersAges 18 years+ - NCT06218030RecruitingPhase 4
L-methylfolate for treatment-resistant anxiety
This study tests whether adding L-methylfolate (a form of vitamin B9) to your current antidepressant can help with generalized anxiety disorder that has not responded to other treatments. It is for adults who are already on a stable dose of an SSRI or SNRI medication.
Kingston, OntarioAges 18–65
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Common questions
- Are there clinical trials for treatment resistant schizophrenia?
- Yes. Clin2 currently lists 71 recruiting treatment resistant schizophrenia studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a treatment resistant schizophrenia trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a treatment resistant schizophrenia trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.