E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Schizophrenia is a serious mental disorder in which people interpret reality abnormally. It is a severely debilitating psychotic disorder characterized by positive symptoms (eg, delusions, hallucinations, and grossly disorganized behavior) and negative symptoms (eg, affective flattening, alogia, and avolition). |
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E.1.1.1 | Medical condition in easily understood language |
Schizophrenia is a mental disorder that may result in some combination of hallucinations, delusions, and extremely disordered thinking and behavior that impairs daily functioning and can be disabling |
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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 | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10039626 |
E.1.2 | Term | Schizophrenia |
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 |
The primary objective is to evaluate the efficacy of TV-44749 in adult patients with schizophrenia.
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E.2.2 | Secondary objectives of the trial |
Secondary objectives: - to further evaluate the efficacy of TV 44749 based on additional parameters in adult patients with schizophrenia. - to evaluate the safety and tolerability of TV-44749 in adult patients with schizophrenia. - to evaluate the efficacy of TV 44749 from baseline to endpoint in Period 1 in adult patients with schizophrenia. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
a. The patient is a male or female of any ethnic origin, 18 to 64 years of age, inclusive, at the time of screening. b. The patient is capable of providing signed informed consent. Patients will be asked to consent to share their information with a vendor that will verify that they are not currently participating or have not recently participated in another clinical study, unless prohibited by local requirements. In addition, all patients will be asked to provide consent for mandatory audio recording of the PANSS assessments. c. The patient has a current confirmed diagnosis of schizophrenia according to the DSM-5, for >1 year. Diagnosis must be reconfirmed by the SCID-5-CT. d. The patient has a total PANSS score between 80 and 120, inclusive, at screening and baseline (prior to randomization) with a score ≥4 on at least 2 of the following 4 items of the PANSS positive subscale: hallucinatory behavior, delusions, conceptual disorganization, or suspiciousness/persecution. e. The patient has exacerbation of schizophrenia that started ≤8 weeks prior to screening and would benefit from psychiatric hospitalization or continued hospitalization for symptoms of schizophrenia. f. The patient has a CGI-S score of ≥4 (moderately ill) at screening and baseline (prior to randomization). g. Patients who have received an antipsychotic treatment (other than clozapine) in the past year must have been responsive based on the investigator’s judgment.
See protocol for full list of inclusion criteria. |
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E.4 | Principal exclusion criteria |
a. The patient has a current clinically significant DSM-5 diagnosis other than schizophrenia. b. The patient has a known history of: (a) borderline personality disorder, antisocial personality disorder, or bipolar disorder; (b) traumatic brain injury causing ongoing cognitive difficulties, Alzheimer’s disease, or another form of dementia, or any chronic organic disease of the central nervous system; and (c) intellectual disability of a severity that would impact ability to participate in the study. c. The patient has an improvement (reduction) in the total PANSS score of ≥20% between screening and day 1. d. The patient was hospitalized for >14 days in the current exacerbation episode prior to screening. e. The patient has a significant risk of violent behavior based on the patient’s medical history or investigator’s judgment. f. The patient has a significant risk of committing suicide based on the patient’s medical history or C-SSRS, and the investigator’s judgment. Patients with a C-SSRS positive response to suicidal ideation items 3, 4, or 5 and/or positive suicidal behavior response in the past 6 months are not eligible.
See protocol for full list of exclusion criteria |
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E.5 End points |
E.5.1 | Primary end point(s) |
The change from baseline to week 8 in the Positive and Negative Syndrome Scale (PANSS) total score. |
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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) |
•Change in Clinical Global Impression-Severity (CGI-S) scale score from baseline to week 8 •Change in Personal and Social Performance Scale (PSP) score from baseline to week 8
The safety and tolerability endpoints will include, where appropriate, the following: adverse events (including serious adverse events, extrapyramidal symptoms, injection pain and other injection site reactions [local tolerability]), vital signs (blood pressure, pulse and orthostatic changes, and temperature), body weight, laboratory tests, electrocardiogram (ECG), concomitant medication use, time to all-cause discontinuation, all-cause discontinuation rates and discontinuation rates due to adverse events (tolerability), and the following rating scales: •Abnormal Involuntary Movement Scale (AIMS) •Simpson-Angus Scale •Barnes Akathisia Rating Scale •Columbia Suicide Severity Rating Scale (C-SSRS) •Calgary Depression Scale for Schizophrenia (CDSS)
•Change in total PANSS score from baseline to weeks 1, 2, and 4 •Change in Clinical Global Impression-Improvement (CGI-I) scale score from baseline to weeks 4 and 8 •Change in CGI-S scale score from baseline to weeks 1, 2, and 4 •Change in Patient Global Impression-Improvement (PGI I) scale score from baseline to week 8 •Change in PGI-I scale score from baseline to weeks 2 and 4 •Change in Schizophrenia Quality of Life Scale (SQLS) score from baseline to weeks 4 and 8 •Change in PSP score from baseline to week 4 |
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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 | 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 | 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) | 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 | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
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 | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 4 |
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 | 9 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 23 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
China |
India |
Israel |
Mexico |
Serbia |
United States |
Bulgaria |
Romania |
Spain |
Türkiye |
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E.8.7 | Trial has a data monitoring committee | Yes |
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 | 2 |
E.8.9.1 | In the Member State concerned months | 5 |
E.8.9.1 | In the Member State concerned days | |
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 | 9 |