E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Metastatic prostate cancer |
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MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10036909 |
E.1.2 | Term | Prostate cancer metastatic |
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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 ZD6474 (Vandetanib, Zactima™ ) on time to prostate specific antigen (PSA) progression (TTP) in patients with castration-refractory metastatic prostate cancer, without any clinical symptom related to disease progression. |
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E.2.2 | Secondary objectives of the trial |
To investigate the effect of ZD6474 (Vandetanib, Zactima™ ) on the time to cancer-related clinical progression. To investigate the effect of ZD6474 (Vandetanib, Zactima™ ) on the PSA response rate : decrease of at least 50% in PSA confirmed on another sampling with a 4-week minimum time interval between sampling (Bubley criteria, 1999). To investigate the effect of ZD6474 (Vandetanib, Zactima™ ) on overall survival (OS). To investigate the tolerability and safety profile of ZD6474 (Vandetanib, Zactima™).
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Provision of written informed consent prior any study-related procedures. 2. Male aged 18 years and over. 3. Previously confirmed histological diagnosis of adenocarcinoma of the prostate. 4. Evidence of metastases (including bone, lymph nodes, or other site) radiologically or histologically documented. 5. Despite a serum testosterone ≤1.73 nmol/L (50 ng/dL) proving castration, evidence of biochemical progression of prostate cancer, documented by a rise in PSA that meets all the following criteria: 3 consecutive dosages of PSA, each of them showing an increase of the PSA value compared to the previous dosage (see Figure 2, criterion 1). NB: If the third PSA value is lower than the second PSA value then a fourth PSA assessment is required and the PSA value should be higher than the second PSA value (see Figure 2, criterion 2). 2 weeks minimum time interval between sampling. All PSA values must be ≥5 ng/mL and should have been assessed in the same laboratory using the same PSA assay. 6. World Health Organisation (WHO) performance status 0 – 2 (see Appendix C). 7. No prior cytotoxic chemotherapy for the treatment of prostate cancer. 8. No clinical symptom related to disease progression: no bone pain related to bone metastasis, no change in the urinary symptoms during the last 6 months. 9. Withdrawal of antiandrogens, within 4 weeks of randomisation to the study (at the exception of luteinising hormone-releasing hormone (LHRH) analogue, LHRH analogue must be maintained) or within 6 weeks of randomisation to the study for bicalutamide. Continued elevation of the PSA can be demonstrated during the washout times provided above. Biphosphonate therapy is allowed if the first dose was administered more than 30 days before Visit 1.
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E.4 | Principal exclusion criteria |
1. No metastatic prostate cancer or no resistance to castration or symptomatic prostate cancer. 2. Radiotherapy or surgery or antiandrogens (except LHRH analogue) or bilateral orchiectomy within the 30 days preceding Visit 1. Incompletely healed surgical incision. 3. Concomitant anticancer therapy other than surgical castration or continuous medical castration. 4. Biology. Serum bilirubin >1.5x the upper limit of reference range (ULRR) Serum creatinine >1.5 x ULRR or creatinine clearance < 50 mL/minute (calculated by Cockcroft-Gault formula.) Potassium, <4.0 mmol/L despite supplementation; or above the CTCAE grade 1 upper limit. Magnesium below the normal range despite supplementation, or above the CTCAE grade 1 upper limit. Serum calcium above the CTCAE grade 1 upper limit. In cases where the serum calcium is below the normal range, 2 options would be available: 1) the calcium adjusted for albumin is to be obtained and substituted for the measured serum value. Exclusion is to then be based on the adjusted for albumin values falling below the normal limit. 2) Determine the ionized calcium levels. Exclusion is then to be based if these ionized calcium levels are out of normal range despite supplementation. Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) > 2.5 ´ ULRR or alkaline phosphatase (ALP) >2.5 x ULRR, or > 5 x ULRR if judged by the investigator to be related to liver metastases. 5. Cardiovascular history. Clinical significant cardiovascular event (eg. myocardial infarction, superior vena cava [SVC] syndrome, New York Heart Association [NYHA] classification of heart disease ≥2 [See Appendix G]) within 3 months before entry, or presence of cardiac disease that in the opinion of the Investigator increases the risk of ventricular arrhythmia. History of arrhythmia (multifocal premature ventricular contractions [PVCs], bigeminy, trigeminy, ventricular tachycardia or uncontrolled atrial fibrillation), which is symptomatic or requires treatment (CTCAE grade 3), symptomatic despite treatment, or asymptomatic sustained ventricular tachycardia. Subjects with atrial fibrillation controlled on medication are permitted. Hypertension not controlled by medical therapy (systolic blood pressure greater than 160 millimeter of mercury [mmHg] or diastolic blood pressure greater than 100 mmHg). 6. ECG Congenital long QT syndrome or 1st degree relative with unexplained sudden death under 40 years of age. QTc prolongation with other medications that required discontinuation of that medication. Presence of left bundle branch block (LBBB). QTc with Bazett’s formula unmeasurable or ≥480 msec or greater on screening ECG (see Appendix D for Bazett’s formula). Note: If a patient has QTc interval ≥480 msec on screening ECG, the screen ECG may be repeated twice [at least 24 hours apart]. The average QTc from the three screening ECGs must be <480 msec in order for the patient to be eligible for the study. 7. Any concomitant medications that may cause QTc prolongation or induce Torsades de Pointes (see Appendix E for the lists of medications in Table 1 & Table 2) or induce CYP3A4 function (see Section 3.7). 8. Known severe hypersensitivity to study treatments and to their excipients. 9. Human Immunodeficiency Virus (HIV) positive. 10. In the opinion of the investigator, any evidence of severe or uncontrolled systemic disease, (eg, currently unstable or uncompensated respiratory, cardiac, hepatic or renal disease) or evidence of any other significant clinical disorder or laboratory finding that makes it undesirable for the patient to participate in the study. 11. Previous or current malignancies of other histologies within the last 5 years, with the exception of adequately treated basal cell or squamous cell carcinoma of the skin. 12. Any unresolved toxicity greater than CTC grade 1 from previous anti-cancer therapy. 13. Currently active diarrhea that may affect the ability of the patient to absorb the ZACTIMA or tolerate diarrhea. 14. Previous exposure to ZACTIMA (ZD6474) or any previous treatment with signal transduction inhibitors targeting VEGF. 15. Participation in a clinical study and/or receipt of an investigational drug during the last 30 days. 16. Involvement in the planning and conduct of the study (applies to both AstraZeneca staff or staff at the study site). 17. Previous enrolment or randomisation of treatment in the present study. 18. Patient partially or totally deprived of his civil rights. 19. Patient unable to follow and comply with the study procedures because of any geographical, social or psychological reasons.
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary outcome variable is time to PSA progression. |
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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 | 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 | 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 | Information not present in EudraCT |
E.7.1.2 | Bioequivalence study | Information not present in EudraCT |
E.7.1.3 | Other | Information not present in EudraCT |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
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.8.4.1 | Number of sites anticipated in Member State concerned | 6 |
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 | Information not present in EudraCT |
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 | 3 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |