E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 8.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10039626 |
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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 of this study is to compare the efficacy of 2 doses of quetiapine (400 mg/day and 800 mg/day) with that of placebo in the treatment of schizophrenia in adolescent patients as assessed by the change from baseline to Day 42 in the PANSS total score (primary outcome variable). The primary hypotheses are as follows: 1. Quetiapine 400 mg/day is superior to placebo in reducing PANSS total score at Day 42 compared with baseline. 2. Quetiapine 800 mg/day is superior to placebo in reducing PANSS total score at Day 42 compared with baseline. |
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E.2.2 | Secondary objectives of the trial |
1. to compare the effects of quetiapine 400 mg/day and quetiapine 800 mg/day with the effect of placebo on a broad range of schizophrenia symptoms 2. to compare the effects of quetiapine 400 mg/day and quetiapine 800 mg/day with the effect of placebo on level of functioning, as assessed by the change from baseline to Day 42 in the Children’s Global Assessment Scale (CGAS; Shaffer et al 1983) total score 3. to compare the effects of quetiapine 400 mg/day and quetiapine 800 mg/day with the effect of placebo on aggression and hostility, as assessed by the changes from baseline to Days 7, 14, and 42 in the sum of the scores for PANSS items S1, S2, and S3 4. to evaluate the safety and tolerability of quetiapine compared with placebo in the treatment of schizophrenia in adolescent patients |
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E.2.3 | Trial contains a sub-study | Information not present in EudraCT |
E.3 | Principal inclusion criteria |
1. Provision of written informed consent by one or both parents or by legal guardian prior to any study procedure 2. Provision of written assent by the patient prior to any study procedure 3. Male or female, aged 13 to 17 years at randomization, hospitalized or outpatient 4. If female and of childbearing potential, must be using a reliable method of contraception. Reliable methods may include abstinence, hormonal contraceptives (eg, oral contraceptive or long-term injectable or implantable hormonal contraceptive), double-barrier methods (eg, condom and diaphragm, condom and foam, condom and sponge), intrauterine devices, and tubal ligation. 5. All female patients will need to have the absence of pregnancy confirmed by a negative b-hCG before randomization 6. DSM-IV criteria for schizophrenia confirmed by the K-SADS-PL 7. The SCQ will be administered to assess for Pervasive Development Disorders. Patients with an SCQ score of > or = 15 and who otherwise meet entrance criteria must have a documented history of delusions or hallucinations. 8. Patients with a secondary diagnosis of depression may continue treatment with an antidepressant if clinically advised by the investigator, providing the antidepressant is permitted by the protocol and the dose has been stable for > or = 30 days preceding randomization 9. PANSS score of > or = 60 and a score of 4 or greater on at least 1 of the following items; delusions (P1), conceptual disorganizations (P2), or hallucinations (P3) at both screening and randomization (Day 1) 10. Willingness to agree not to harm self 11. Have a parent or legal guardian who will accompany the patient at each scheduled study visit, can provide reliable information, and can be responsible for receiving and dispensing study medication 12. Willingness to adhere to the schedule of assessments |
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E.4 | Principal exclusion criteria |
1. Secondary DSM-IV Axis I diagnoses of Bipolar Disorders including Cyclothymia, Schizophreniform Disorder, Schizoaffective Disorder, Psychotic Disorder Not Otherwise Specified (NOS), and acute (<3 months) Posttraumatic Stress Disorder (PTSD). 2. Premorbid intelligence quotient (IQ) <70 or diagnosis of mental retardation 3. Psychosis judged to be the direct physiological consequence of a medical condition or treatment. These conditions include degenerative neurological conditions (eg, Parkinson’s disease, Huntington’s disease) cerebrovascular disease (eg, stroke), metabolic conditions (eg, vitamin B12 deficiency), autoimmune conditions (eg, systemic lupus erythematosus), viral or other infections (eg, hepatitis, mononucleosis, human immunodeficiency), and cancers. 4. Psychosis judged to be the direct physiological effect (eg, intoxication, withdrawal) of an abused medication or substance 5. History of any serious suicide attempt that required medical intervention, or current suicidal risk that cannot be safely managed as determined by the clinical judgment of the investigator 6. Serious homicidal risk or homicidal behaviors within the past 3 months that resulted in adjudication 7. Known intolerance for or lack of response to quetiapine, as judged by the investigator 8. Contraindications as detailed in country-specific prescribing information for quetiapine 9. For female patients, pregnancy or lactation 10. Substance abuse or dependence (Appendix D) including alcohol (except for caffeine or nicotine dependence), as defined in DSM-IV, within 1 month prior to screening 11. Inability to discontinue psychoactive medications (see Section 3.4.4.1, Table 4) prior to randomization 12. Use of haloperidol decanoate, fluphenazine decanoate or risperidone microspheres within 1 dosing interval prior to randomization 13. Electroconvulsive therapy (ECT) within 30 days prior to screening 14. Use of potent cytochrome P450 (CYP) 3A4 inhibitors (eg, ketoconazole, itraconazole, fluconazole, erythromycin, clarithromycin, troleandomycin, indinavir, nelfinavir, ritonavir, and saquinavir) in the 14 days preceding randomization 15. Use of potent CYP 3A4 inducers (eg, phenytoin, carbamazepine, barbiturates, rifampin, glucocorticoids, Saint John’s Wort) in the 14 days preceding randomization 16. Thyroid-stimulating hormone (TSH) concentration more than 10% above the upper limit of the normal range 17. Laboratory test results outside the reference range and considered by the investigator to be clinically significant 18. Baseline QTc interval (Fridericia formula; Puddu et al 1988) > or = 450 milliseconds at baseline 19. Renal, cardiovascular, hepatic, hematologic, endocrinologic, ophthalmologic, or other disease or clinical finding that is unstable or that in the opinion of the investigator would be negatively affected by study medication or that would affect study medication 20. Unstable Diabetes Mellitus (DM) with a baseline Glycosylated Hemoglobin (HbA1c) Ÿ8.5 21. Patients admitted to a hospital for treatment of diabetes or diabetes related illness in past 12 weeks 22. Not under the care of a physician responsible for the patient’s DM care 23. DM clinically unstable in the opinion of the physician responsible for the patient’s diabetes management at the time of baseline 24. The physician responsible for the patient’s DM care has not approved the patient’s participation in the study 25. The patient has not been on the same dose of oral hypoglycemic drug(s) and/or diet for the 4 weeks prior to randomization. For thiazolidinediones (glitazones) this period should not be less than 8 weeks. 26. A patient taken insulin whose daily dose on one occasion in the past 4 weeks has been more than 10% above or below their mean dose in the preceding 4 weeks 27. If the patient’s CBC with WBC differential shows an ANC < 1.0 x 10 9 /L, repeat the test within 24 hours. If it remains < 1.0 x 10 9 /L, the patient will be excluded. 28. Medical condition that would affect absorption, distribution, metabolism, or excretion of study medication 29. History of seizure disorder, except febrile convulsions 30. Use of experimental drug within 30 days of randomization (Day 1) 31. Previous participation in this study 32. Significant medical illness which could prevent patient from completing double-blind treatment |
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E.5 End points |
E.5.1 | Primary end point(s) |
Change from baseline to Day 42 in the PANSS total score |
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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 | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | Information not present in EudraCT |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Information not present in EudraCT |
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) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
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.8.5 | The trial involves multiple Member States | Yes |
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 | Information not present in EudraCT |
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 |
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E.8.7 | Trial has a data monitoring committee | Information not present in EudraCT |
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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The end of the double-blind study will be defined as the date on which database lock occurs |
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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 | 3 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 4 |
E.8.9.2 | In all countries concerned by the trial months | 2 |