Delusional disorder
MONDO:0004359A disorder characterized by the presence of one or more nonbizarre delusions that persist for at least 1 month; the delusion(s) are not due to schizophrenia or a mood disorder, and do not impair psychosocial functioning apart from the ramifications of the delusion(s).
73 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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New program aims to boost heart health in psychosis patients
Disease control Recruiting nowThis study tests a program called LAGOM designed to improve heart health and quality of life for people with psychotic disorders. 644 adults from six clinics in Gothenburg will either receive the LAGOM program or standard care. The program includes regular check-ups, motivational…
Phase: NA • Sponsor: Vastra Gotaland Region • Aim: Disease control
Last updated Aug 13, 2026 00:00 UTC
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Can yoga plus a gentle brain zap sharpen the mind in psychosis?
Disease control Recruiting nowThis study tests whether combining yoga with a mild electrical brain stimulation technique, called tDCS, can improve thinking and memory in people with psychosis. Participants will be randomly assigned to receive either active tDCS during yoga or a sham (inactive) version, and re…
Phase: NA • Sponsor: The Hong Kong Polytechnic University • Aim: Disease control
Last updated Aug 07, 2026 00:00 UTC
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Could skipping a day of antipsychotics reduce side effects without worsening symptoms?
Disease control Recruiting nowThis study looks at whether taking antipsychotic medication every other day is as effective as taking it daily for people with schizophrenia. 120 participants will be randomly assigned to either daily dosing or every-other-day dosing for one year. The goal is to see if extended d…
Phase: PHASE4 • Sponsor: Centre for Addiction and Mental Health • Aim: Disease control
Last updated Jun 27, 2026 12:06 UTC
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Magnetic seizures: a new hope for psychosis?
Disease control Recruiting nowThis study tests a new treatment called magnetic seizure therapy (MST) for people with psychotic disorders like schizophrenia. MST uses magnetic pulses to trigger a controlled seizure in the brain, aiming to improve symptoms when added to standard antipsychotic medications. The t…
Phase: NA • Sponsor: Shanghai Jiao Tong University School of Medicine • Aim: Disease control
Last updated Jun 27, 2026 07:59 UTC
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Gut bacteria may shield against antipsychotic weight gain
Prevention Recruiting nowThis study tests if a daily probiotic powder can prevent or reduce weight gain, high blood sugar, and high cholesterol caused by certain antipsychotic drugs. About 112 adults starting or recently starting olanzapine, quetiapine, risperidone, or clozapine will take either the prob…
Phase: PHASE2, PHASE3 • Sponsor: University Medical Center Groningen • Aim: Prevention
Last updated Jun 27, 2026 12:37 UTC
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App-Based therapy aims to slow down paranoia in psychosis
Symptom relief Recruiting nowThis study tests SloMo, a digital therapy that helps people with psychosis who fear harm from others. It combines face-to-face sessions with a mobile app to help users notice worries and slow down fast thinking. 150 participants across three NHS trusts will try the therapy, with …
Phase: NA • Sponsor: King's College London • Aim: Symptom relief
Last updated Aug 13, 2026 00:00 UTC
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Can mindfulness ease psychosis in teens and young adults?
Symptom relief Recruiting nowThis study tests whether a 4-week mindfulness group therapy program, added to usual care, can reduce symptoms in 252 young people (ages 16-35) hospitalized for early psychosis. Participants are randomly assigned to either the mindfulness program plus standard treatment or standar…
Phase: NA • Sponsor: Stephanie Mehl • Aim: Symptom relief
Last updated Jul 17, 2026 00:00 UTC
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Veterans helping veterans: Peer-Led program aims to prevent suicide in those with serious mental illness
Symptom relief Recruiting nowThis study tests a program called SUPPORT, where trained peer specialists (fellow veterans) help veterans with serious mental illness (like schizophrenia or bipolar disorder) who are at high risk for suicide. Together, they create a personalized recovery plan that includes coping…
Phase: NA • Sponsor: VA Office of Research and Development • Aim: Symptom relief
Last updated Jul 12, 2026 00:00 UTC
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New group therapy aims to rewrite harmful beliefs in psychosis
Symptom relief Recruiting nowThis study tests a 6-week group therapy program for adults with schizophrenia or related disorders. The therapy focuses on changing negative core beliefs (like feeling worthless or that others are dangerous) using compassion-focused techniques. The goal is to see if this approach…
Phase: NA • Sponsor: University of Toronto • Aim: Symptom relief
Last updated Jun 27, 2026 12:29 UTC
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Could virtual reality boost brain power in psychosis?
Symptom relief Recruiting nowThis study tests a virtual reality program designed to help people with psychosis improve their thinking and social skills. The program was created with input from patients and doctors. Researchers will see if it is practical and helpful for daily life. The study involves 52 adul…
Phase: NA • Sponsor: The Royal Ottawa Mental Health Centre • Aim: Symptom relief
Last updated Jun 27, 2026 12:07 UTC
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Short online therapy aims to curb substance use in early psychosis
Symptom relief Recruiting nowThis study tests a brief, virtual cognitive remediation therapy (Action-Based Cognitive Remediation) for young people aged 16-30 with early psychosis who also misuse alcohol or cannabis. The therapy aims to improve thinking skills and reduce substance use. Researchers will enroll…
Phase: NA • Sponsor: Nova Scotia Health Authority • Aim: Symptom relief
Last updated Jun 27, 2026 12:04 UTC
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Can a new psychotherapy help people with psychosis feel more like themselves?
Symptom relief Recruiting nowThis pilot study tests a new type of talking therapy designed for people with early psychosis who experience 'self-disorders' — a feeling of being disconnected from themselves. Eight adults with schizophrenia or psychosis risk will receive the therapy and then be interviewed abou…
Phase: NA • Sponsor: Oslo University Hospital • Aim: Symptom relief
Last updated Jun 27, 2026 08:03 UTC
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Brain study seeks to unravel loneliness in mental illness
Knowledge-focused Recruiting nowThis study looks at how feeling lonely and being socially isolated affect the brain and daily life in people with serious mental illnesses like psychosis or schizophrenia. Researchers will use surveys, daily diaries, and brain scans to understand these connections. The goal is to…
Phase: NA • Sponsor: Massachusetts General Hospital • Aim: Knowledge-focused
Last updated Jul 18, 2026 00:00 UTC
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Your words could reveal your risk: AI analyzes speech to predict psychosis
Knowledge-focused Recruiting nowThis study is testing whether subtle changes in how people speak can predict who will develop schizophrenia. Researchers will record and analyze free speech from 215 young people aged 15-30 who are at ultra-high risk for psychosis. By using computer programs to detect semantic an…
Sponsor: University Hospital, Brest • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:00 UTC
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Brain scans reveal what happens when cannabis users with psychosis go cold turkey
Knowledge-focused Recruiting nowThis study looks at how stopping cannabis use for 28 days changes brain activity and memory in people with psychosis and in cannabis users without psychosis. Participants are randomly assigned to either quit cannabis or continue using, and undergo brain scans before and after the…
Phase: NA • Sponsor: Douglas Mental Health University Institute • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:36 UTC
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Can brain chemistry predict who benefits from stimulation?
Knowledge-focused Recruiting nowThis study investigates how the brain chemical glutamate relates to memory and attention in people who have recently experienced psychosis. Researchers will use brain scans and a mild electrical stimulation technique called tDCS to see if glutamate levels can predict who responds…
Phase: NA • Sponsor: University of Nottingham • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:29 UTC
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Hidden health crisis: new screening aims to catch physical illness in mental health patients
Knowledge-focused Recruiting nowPeople with serious mental illness often have undiagnosed physical conditions like heart disease, diabetes, and cancer. This study tests whether adding routine physical health checks to psychiatric care helps find and treat these hidden illnesses. About 2,800 adults in Denmark wi…
Phase: NA • Sponsor: Amager Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:05 UTC
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New study probes hidden language struggles in psychosis patients
Knowledge-focused Recruiting nowThis study looks at language difficulties in people with psychosis, including those at risk, experiencing a first episode, or diagnosed with schizophrenia. Researchers will give a full language test to 90 patients and compare results with a healthy control group. The goal is to b…
Phase: NA • Sponsor: Centre Psychothérapique de Nancy • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:01 UTC
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Immune clues could revolutionize psychosis care
Knowledge-focused Recruiting nowThis study investigates how the immune system influences psychotic symptoms and response to antipsychotic medication. Researchers will collect blood and spinal fluid from 500 participants, including those starting or changing antipsychotics and healthy controls. The goal is to fi…
Sponsor: King's College London • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:00 UTC
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Can brain scans and eye movements predict psychosis recovery?
Knowledge-focused Recruiting nowThis study looks at 320 people with early psychosis to see if brain scans, eye-tracking, and electrical brain waves can predict how well they respond to treatment. Participants will have four visits over a year, including interviews, memory tests, and optional DNA samples. The go…
Sponsor: Beth Israel Deaconess Medical Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:00 UTC
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Stanford scientists zap brains to unlock schizophrenia secrets
Knowledge-focused Recruiting nowThis study uses a non-invasive brain stimulation technique called TMS to see if it can change brain activity in people with schizophrenia. Researchers will measure brain waves before and after stimulation to understand how the hippocampus works in this condition. The goal is not …
Phase: NA • Sponsor: Stanford University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:09 UTC
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AI listens for warning signs of psychosis relapse
Knowledge-focused Recruiting nowThis study tests whether analyzing speech recordings with artificial intelligence can help predict when someone with psychosis might relapse. About 360 participants, including people with psychosis and healthy volunteers, will provide weekly voice samples and answer questions via…
Sponsor: Philipp Homan • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:03 UTC
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Brain scans reveal hidden clues in mental illness
Knowledge-focused Recruiting nowThis study uses a special brain scan (PET) to measure the density of connections between brain cells in people with psychotic disorders (like schizophrenia) or cannabis use disorder, compared to healthy volunteers. The goal is to understand how brain connection changes relate to …
Sponsor: Yale University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:00 UTC
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Doctors study cutting back antipsychotics: hope for fewer side effects?
Knowledge-focused Recruiting nowThis study looks at 30 adults with psychotic disorders who are stable on long-term antipsychotics and want to reduce or stop their medication. Researchers will describe real-life cases to understand what works, what doesn't, and the risks of relapse. The goal is to learn practica…
Sponsor: University Hospital, Strasbourg, France • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:11 UTC
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Teaching families to fight psychosis: a new approach
Knowledge-focused Recruiting nowThis study looks at whether teaching families skills to support young adults with psychosis can reduce stress for caregivers and help patients stay stable. About 113 family members will attend 9 weekly classes led by experts. Researchers will measure family burden, patient sympto…
Phase: NA • Sponsor: University of Alberta • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:57 UTC
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New brain tool could match veterans to right cognitive therapy
Knowledge-focused Recruiting nowThis study aims to create brain-based tools to identify which veterans with chronic psychosis are most likely to benefit from cognitive rehabilitation. Researchers will use EEG recordings to measure brain activity and see if these signals can predict improvements in thinking skil…
Sponsor: VA Office of Research and Development • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:54 UTC
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Could hallucinations in seniors signal dementia? new study investigates
Knowledge-focused Recruiting nowThis study looks at whether older adults who develop hallucinations or delusions for the first time may have early signs of dementia. Researchers will use special brain scans (tau PET) and blood tests to check for abnormal proteins linked to Alzheimer's. The goal is to better und…
Sponsor: Jeremy Koppel • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:52 UTC