| 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.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 14.0 | 
 
| E.1.2 | Level  | PT | 
 
| E.1.2 | Classification code  | 10039638 | 
 
| E.1.2 | Term  | Schizophrenia, disorganised type | 
 
| E.1.2 | System Organ Class  | 10037175 - Psychiatric disorders | 
 
 
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| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 14.0 | 
 
| E.1.2 | Level  | PT | 
 
| E.1.2 | Classification code  | 10039639 | 
 
| E.1.2 | Term  | Schizophrenia, paranoid type | 
 
| E.1.2 | System Organ Class  | 10037175 - Psychiatric disorders | 
 
 
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| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 14.0 | 
 
| E.1.2 | Level  | PT | 
 
| E.1.2 | Classification code  | 10052792 | 
 
| E.1.2 | Term  | Schizophrenia, undifferentiated type | 
 
| E.1.2 | System Organ Class  | 10037175 - Psychiatric disorders | 
 
 
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| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 14.0 | 
 
| E.1.2 | Level  | PT | 
 
| E.1.2 | Classification code  | 10039637 | 
 
| E.1.2 | Term  | Schizophrenia, catatonic type | 
 
| E.1.2 | System Organ Class  | 10037175 - Psychiatric disorders | 
 
 
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| 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  | 
| To assess the effect of zicronapine versus risperidone on metabolic parameters comprising body weight, BMI, waist circumference, levels of fasting blood lipids and glucose during 6 months of treatment | 
 
 
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| E.2.2 | Secondary objectives of the trial  | 
- to assess the overall safety and tolerability of zicronapine (ZIC) versus risperidone (RIS)
 - to assess the potential of ZIC versus RIS to induce EPS
 - to assess the effect of ZIC versus RIS on serum prolactin levels
 - to assess the effect of ZIC on suicidal ideation and behaviour
 - to assess the effect of ZIC versus RIS on ECG
 - to assess the efficacy of ZIC versus RIS
 - to assess the efficacy of ZIC versus RIS by comparing the proportions of responders
 - to assess the efficacy of ZIC versus RIS on global improvement
 - to assess the effect of ZIC versus RIS on personal and social functioning
 - to assess the effect of ZIC versus RIS on functioning
 - to assess the effect of ZIC versus RIS on quality of life
 - to assess the effect of ZIC versus RIS on the patient’s satisfaction with treatment
 - to assess the PK properties of ZIC and its major metabolite Lu AA22774
 - to explore biological parameters | 
 
 
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| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
- The patient meets the DSM-IV-TR criteria for schizophrenia (codes 295.10, 295.20, 295.30, 295.90)
 - The patient is a man or woman, ≥18 and ≤65 years old 
 - The patient has a PANSS total score ≥60 and ≤100 at screening and baseline
 
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| E.4 | Principal exclusion criteria | 
- The patient has a current Axis I psychiatric disorder other than schizophrenia as defined in the DSM-IV-TR
 - The patient has a current diagnosis or a history of substance dependence (except nicotine) or substance abuse (except cannabis) according to the DSM-IV-TR criteria ≤6 months prior to screening
 - The patient is at significant risk of harming himself/herself or others according to the investigator’s judgement (assisted by the assessment of suicidal ideation and behaviour using the C-SSRS)  
 - The patient is resistant to antipsychotic treatment according to the investigator’s judgement or has been treated with clozapine ≤ 3 months prior to screening
 - The patient has experienced an acute exacerbation requiring hospitalisation ≤ 3 months prior to screening or between screening and baseline
 - The patient has been treated with risperidone or paliperidone ≤6 months prior to screening 
 - The patient has been treated with an adequate course of risperidone or paliperidone and failed to respond or has shown intolerance to the drug according to the investigator`s judgement | 
 
 
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| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| To assess the effect of zicronapine versus risperidone on metabolic parameters comprising body weight, body mass index (BMI), waist circumference, levels of fasting blood lipids and glucose during 6 months of treatment | 
 
 
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| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
| Evaluation at the end of the study | 
 
 
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| E.5.2 | Secondary end point(s) | 
Safety endpoints:
 •	To assess the overall safety and tolerability of zicronapine versus risperidone during 6 months of treatment
 •	To assess the potential of zicronapine versus risperidone to induce extrapyramidal symptoms using change from baseline to each assessment in the AIMS, BARS, and SAS total scores
 •	To assess the effect of zicronapine versus risperidone on serum prolactin levels
 •	To assess the effect of zicronapine on suicidal ideation and behaviour using the Columbia Suicide-Severity Rating Scale (C-SSRS)
 •	To assess the effect of zicronapine versus risperidone on electrocardiogram (ECG) parameters
 
 Efficacy endpoints:
 •	To assess the efficacy of zicronapine versus risperidone following 6 months of treatment using change from baseline in the Positive and Negative Syndrome Scale (PANSS) total score
 •	To assess the efficacy of zicronapine versus risperidone using change from baseline to each assessment in the PANSS total score and PANSS subscale scores (Positive Symptoms, Negative Symptoms, and General Psychopathology
 •	To assess the efficacy of zicronapine versus risperidone by comparing the proportions of responders (using two definitions of response:  ≥20% and ≥50% decrease from baseline in PANSS total score)
 •	To assess the efficacy of zicronapine versus risperidone on global improvement using change from baseline to each assessment in the Clinical Global Impression – Severity of Illness (CGI-S) score
 •	To assess the effect of zicronapine versus risperidone on personal and social functioning using the Personal and Social Performance Scale (PSP) 
 •	To assess the effect of zicronapine versus risperidone on functioning using the Global Assessment of Functioning scale (GAF)
 •	To assess the effect of zicronapine versus risperidone on quality of life using the disease-specific Schizophrenia Quality of Life scale (S-QoL) 
 •	To assess the effect of zicronapine versus risperidone on the patient’s satisfaction with treatment using the Medication Satisfaction Questionnaire (MSQ) 
 
 Other endpoints:
 •	To assess the pharmacokinetic (PK) properties of zicronapine and its major metabolite Lu AA22774 in patients with schizophrenia
 •	To explore biological parameters (including gene expression profiling, metabolomics, and genetic biomarker analysis) that may be associated with schizophrenia, the effect of treatment, and/or the treatment response | 
 
 
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| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| Evaluation at the end of the study | 
 
 
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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 |  No  | 
| E.6.4 | Safety |  Yes  | 
| E.6.5 | Efficacy |  Yes  | 
| E.6.6 | Pharmacokinetic |  Yes  | 
| E.6.7 | Pharmacodynamic |  No  | 
| E.6.8 | Bioequivalence |  No  | 
| E.6.9 | Dose response |  No  | 
| E.6.10 | Pharmacogenetic |  Yes  | 
| 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) |  Yes  | 
| E.7.4 | Therapeutic use (Phase IV) |  No  | 
| E.8 Design of the trial | 
| E.8.1 | Controlled |  Yes  | 
| E.8.1.1 | Randomised |  Yes  | 
| E.8.1.2 | Open |  No  | 
| E.8.1.3 | Single blind |  No  | 
| E.8.1.4 | Double blind  |  Yes  | 
| E.8.1.5 | Parallel group |  Yes  | 
| 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) |  Yes  | 
| E.8.2.2 | Placebo  |  No  | 
| E.8.2.3 | Other |  Yes  | 
| E.8.2.3.1 | Comparator description | 
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| E.8.2.4 | Number of treatment arms in the trial | 2 | 
| 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  |  No  | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 6 | 
| E.8.5 | The trial involves multiple Member States |  Yes  | 
| E.8.5.1 | Number of sites anticipated in the EEA | 24 | 
| 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
                     | 
| The end of the study for an individual patient is defined as the last protocol-specified contact with that patient. The overall end of the study is defined as the last protocol-specified contact with the last patient ongoing in the study. | 
 
 
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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 | 1 | 
| E.8.9.1 | In the Member State concerned months | 6 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| E.8.9.2 | In all countries concerned by the trial years | 2 | 
| E.8.9.2 | In all countries concerned by the trial months | 0 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |