NCT03608137

Cannabis and Thought Disorder in Schizophrenia

Cannabis and Thought Disorder in Schizophrenia: Clinical and Neuroimaging Relationships

• Status: Terminated
• Phase: N/A
• Study type: Interventional
• Enrollment: 63 (actual)
• Sponsor: Hôpital le Vinatier · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

Recent studies have suggested a strong relationship between cannabis use and the level of thought disorder in subjects with schizophrenia. Moreover, the level of thought disorder has been associated with an increased functional connectivity between the temporal lobe and the Putamen. However, the brain mechanisms underlying these two relationships are still poorly known. Better understanding these mechanisms is important to improve patients' care, in particular among treatment-resistant patients. The objective of the CANDI study consists of assessing whether the level of cannabis use in patients with schizophrenia modulates the level of thought disorder via a modulation of the functional connectivity between the temporal lobe and the Putamen. Analyses will be controlled for the composition of cannabis, in particular the tetrahydrocannabinol / cannabidiol ratio.

Detailed description

25 subjects with schizophrenia and current cannabis use will be recruited in the experimental group. The control group will consist of 25 subjects with schizophrenia but with no cannabis use.

Conditions

• Schizophrenia

Interventions

Type	Name	Description
OTHER	Cannabis and thought disorder in schizophrenia:clinical and neuroimaging relationships	To investigate whether the level of cannabis use in schizophrenic patients influences the symptoms of psychic disorganization via modulation of cerebral connectivity between the temporal lobe and the putamen.

Timeline

• Start date: 2018-12-07
• Primary completion: 2022-08-19
• Completion: 2022-12-31
• First posted: 2018-07-31
• Last updated: 2024-02-14

Locations

1 site across 1 country: France