E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Psychiatry and Psychology [F] - Mental Disorders [F03] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objectives of this study are to investigate changes in the BACS and HFERST scores and in fMRI data from baseline to week 28. |
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E.2.2 | Secondary objectives of the trial |
Longitudinal changes in the following measures: 1. PANSS 2. NSA-4 3. CGI 4. CDRS 5. SHRS/SMARTS 6. MARS 7. PSP 8. EQ-5D
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Diagnosis of schizophrenia as defined by ICD-10 as determined by the M.I.N.I. 2. Age 18-65 years 3. Clinically stable without hospitalization and without any modification in psychopharmacological treatment for at least 8 weeks 4. In need of adjustment of the current oral antipsychotic treatment as judged by the treating psychiatrist 5. CGI-S baseline score ≥ 4 6. Capable of providing written informed consent
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E.4 | Principal exclusion criteria |
1. A score of ≥ 5 on the PANSS items related to delusions (P1), conceptual disorganization (P2), and hallucinatory behavior (P3) 2. Presence of predominant negative symptoms (moderate to severe negative symptoms of greater relative severity than co-occurring positive symptoms, i.e., PANSS scores greater for negative than positive symptoms) to avoid pseudospecificity 3. Presence of clinically significant extrapyramidal symptoms, defined as a total score of ≥ 3 on the St. Hans Rating Scale and/or the use of anticholinergics for the treatment of extrapyramidal motor symptoms 4. Presence of clinically significant symptoms of depression, defined as a total score of ≥ 11 on the CDSS 5. Active suicidal ideation as measured through the C-SSRS, defined as an answer of ‘Yes’ to items 4 and/or 5 6. A diagnosis of alcohol and/or drug abuse or dependence as assessed through the M.I.N.I. or a positive UDS 7. IQ of 70 or less as assessed through the MWT-B 8. Patients who are currently treated with cariprazine or have shown insufficient response or intolerance to cariprazine in the past 9. Current treatment with clozapine 10. Patients who participated in another trial with an investigational drug or cognitive-enhancing intervention within 90 days prior to screening 11. Patients who are not fluent in the language of the cognitive batteries and questionnaires 12. Pregnancy or breast-feeding 13. Regularly taking centrally active medications except antipsychotics (mood stabilizers, antidepressants, etc.) 14. Patients with contraindications to MRI (e.g. claustrophobia, pacemaker, non-MRI-compatible implants) |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary objectives of this study are to investigate changes in the BACS and HFERST scores and in fMRI data from baseline to week 28 |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Longitudinal changes in the following measures: 1. PANSS 2. NSA-4 3. CGI 4. CDRS 5. SHRS/SMARTS 6. MARS 7. PSP 8. EQ-5D |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 5 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |