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Dose-response study of SM-13496 in patients with schizophrenia [late Phase 2 study]

Dose-response study of SM-13496 in patients with schizophrenia [late Phase 2 study]

Status
Unknown
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080220090
Enrollment
Unknown
Registered
2005-09-12
Start date
2005-09-12
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizophrenia

Interventions

investigational material(s) Generic name etc : SM-13496 INN of investigational material : Therapeutic category code : 117 Psychotropic agents Dosage and Administration for Investigational material :

Sponsors

Dainippon Sumitomo Pharma Co., Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: -Patients who meet the ICD-10 diagnostic criteria for schizophrenia -Fresh schizophrenic patients suffering from an initial or recurrent episode or schizophrenic patients receiving antipsychotic drugs, who meet the following inclusion criteria at the time of enrollment a) Patients with hallucinations and delusions in the foreground b) Patients with delusions in the foreground c) Patients with loss of spontaneity and blunted affect in the foreground: Type 1 (fresh, hebephrenic) d) Patients with loss of spontaneity and blunted affect in the foreground: Type 2 (chronically illed, fixed symptoms) e) Patients presenting with neurosis-like symptoms in the foreground f) Patients presenting with depressive symptoms in the foreground -Patients aged 18 to less than 65 at the time of informed consent acquisition etc. -Patients with a history of malignant syndrome, water intoxication, paralytic ileus or with strong suicidal ideation -Patients with Parkinson's disease -Patients with HbA1C level of 8.0% or greater, or whose glycoalbumin level is 23.0% or greater -Patients who have received electroconvulsive therapy within 6 months (180 days) prior to the first dose of the investigational product etc.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
Efficacy: Changes in BPRS and PANSS total scores from baseline etc Safety: Changes in DIEPSS score from baseline etc

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026