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).
75 clinical trials for this condition and its sub-types, 21 tagged with Delusional disorder itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
Browse by category →Part of
Sub-types of Delusional disorder
-
Capgras syndrome 1 trial
-
Can a tailored youth program turn the tide on early psychosis?
Disease control CompletedThis trial tests whether a specialized two-year early intervention service, called OPUS YOUNG, can improve daily and social functioning in adolescents aged 12-17 who have experienced a first episode of psychosis. Participants are randomly assigned to either OPUS YOUNG or standard…
Sponsor: Mental Health Centre Copenhagen, Bispebjerg and Frederiksberg Hospital • Aim: Disease control
Last updated Aug 22, 2026 00:00 UTC
-
Can two antipsychotics together tame schizophrenia better?
Disease control CompletedThis study looked at 6 people with schizophrenia who were already taking a combination of two long-acting injectable medications: Abilify Maintena and Rexulti. Researchers tracked their symptoms and side effects over 6 months to see how well the combo worked in everyday life. The…
Sponsor: The University of Hong Kong • Aim: Disease control
Last updated Jun 27, 2026 12:25 UTC
-
Can a brief chat help young people with psychosis cut back on pot?
Disease control CompletedThis pilot study tested a counseling program called the Teen Marijuana Check Up, adapted for young adults (ages 13–35) who have early psychosis and use cannabis. The program uses motivational interviewing and personalized feedback over two sessions to help participants reduce or …
Sponsor: University of Maryland, Baltimore • Aim: Disease control
Last updated Jun 26, 2026 13:46 UTC
-
Can virtual reality help quiet paranoia in schizophrenia?
Symptom relief CompletedThis trial tests whether adding virtual reality to cognitive behavioural therapy (CBT) can better reduce persecutory thoughts in people with schizophrenia spectrum disorders compared to traditional CBT alone. About 256 participants will receive either VR-assisted CBT or standard …
Sponsor: Mental Health Centre Copenhagen, Bispebjerg and Frederiksberg Hospital • Aim: Symptom relief
Last updated Aug 14, 2026 00:00 UTC
-
Smartphone apps show promise for schizophrenia symptom management
Symptom relief CompletedThis study tested two mobile health (mHealth) strategies to help people with schizophrenia manage their symptoms. 299 participants used smartphone tools to track and improve issues like depression, anxiety, and insomnia. The goal was to see if these digital tools could make a rea…
Sponsor: University of Washington • Aim: Symptom relief
Last updated Jun 27, 2026 07:59 UTC
-
AI coach for therapists: could a digital tool improve psychosis care?
Knowledge-focused CompletedThis study tested a new digital tool called CBTpro that uses artificial intelligence to help therapists improve their skills in cognitive behavioral therapy for psychosis (CBTp). Over 600 participants, including therapists and their clients with conditions like schizophrenia or b…
Sponsor: University of Washington • Aim: Knowledge-focused
Last updated Aug 26, 2026 00:00 UTC
-
New pilot study aims to help people with psychosis in africa through peer support and community resources
Knowledge-focused CompletedThis pilot study tested a community-based intervention for people with psychosis in Malawi, Nigeria, Sierra Leone, and Zimbabwe. The program includes peer support from someone who has experienced psychosis, case management, and help with daily activities like finding work or soci…
Sponsor: London School of Hygiene and Tropical Medicine • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:05 UTC
-
Brain wave test may personalize thinking skills training for veterans
Knowledge-focused CompletedThis study tested whether a brain wave measurement called mismatch negativity (MMN) can help match veterans with mental illness to the most effective cognitive training program. 100 veterans with conditions like schizophrenia, PTSD, or mood disorders participated. The goal was to…
Sponsor: VA Office of Research and Development • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:07 UTC
-
New training aims to give veterans with mental illness a stronger voice in their care
Knowledge-focused CompletedThis study tested a program called Collaborative Decision Skills Training (CDST) to help veterans with serious mental illness (like schizophrenia or major depression with psychosis) work more closely with their doctors in making treatment decisions. The program involved eight wee…
Sponsor: VA Office of Research and Development • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:06 UTC