E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Postmenopausal Women with Estrogen Receptor Positive Breast Cancer (T2, 3, 4b, N0-3, M0) |
|
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 |
To compare the effects of fulvestrant 500 mg and fulvestrant 250 mg on the proliferation marker Ki67 at 4 weeks |
|
E.2.2 | Secondary objectives of the trial |
Compare effects of fulvestrant 500 mg and 250 mg on: - the down-regulation of ER and PgR expression - proliferation marker Ki67 - clinical, radiological and pathological tumor responses Correlate response after 16 weeks of treatment to biological correlates detected after 4 and 16 weeks of treatment Compare the actual surgery performed Compare the effects of fulvestrant 500 mg and 250 mg on: - endometrial thickness and uterine dimensions - serum bone markers Assess: - correlation between changes in Ki67 LI and changes in ER and PgR expression - pharmacokinetics of fulvestrant - relationship between the pharmacokinetics markers (AUC, Cmax) and dynamic markers of downregulation and proliferation Compare the tolerability of fulvestrant 500 mg with that of fulvestrant 250 mg |
|
E.2.3 | Trial contains a sub-study | Information not present in EudraCT |
E.3 | Principal inclusion criteria |
1. Provision of written informed consent. 2. Histologically/cytologically confirmed invasive breast cancer, ER positive as defined by the local laboratory 3. Operable or potentially operable locally advanced tumor (T2, 3, 4b, N0-3, M0). The largest diameter of the tumor as measured by ultrasound or by MRI must be ³ 2 cm. Patients with two measurable nodules will be eligible as long as both lesions are biopsied and have similar histology and are both ER positive. 4. Postmenopausal woman, defined as a woman fulfilling any 1 of the following criteria: · Age ³ 60 years · Age ³ 45 years with amenorrhea ³ 12 months with an intact uterus · Having undergone a bilateral oophorectomy · FSH and estradiol levels in postmenopausal range (utilizing ranges from the testing laboratory facility). 5. Willingness to undergo biopsy at baseline and at 4 weeks and surgery at 16 weeks 6. WHO performance status 0, 1 or 2 For inclusion in the genetic component of the study, patients must fulfill the following criteria: 1. Provision of informed consent for genetic sampling and analyses If a patient declines to participate in the genetic component of the study, there will be no penalty or loss of benefit to the patient. The patient will not be excluded from other aspects of the study described in this Clinical Study Protocol, so long as they consent.
|
|
E.4 | Principal exclusion criteria |
1. Inoperable due to satellite skin nodules or true inflammatory carcinoma. 2. Multifocal disease (> 2 major tumor nodules). Patients with more than one primary tumor will be excluded. 3. Presence of metastatic disease as defined by the American Joint Committee on Cancer (AJCC) guidelines revised in 2002 (Singletary, 2002). Metastatic evaluation should be performed according to the usual guidelines of the institutions. It is recommended that the following evaluations should be done: · Chest X-ray · Liver function tests · CBC with differential cell count and platelet count. · Abdominal CT scan if liver function tests significantly elevated · CT scan of the chest and abdomen for clinical stage ³ T3, or > N1 · Bone scan if bony discomfort, elevated serum alkaline phosphatase, ³ T3 or >N1 clinical disease · Bilateral mammograms 4. Any previous treatment for breast cancer 5. Unwillingness to stop taking any drug known to affect sex hormonal status (including HRT), or a patient in whom it would be inappropriate to stop 6. Current or prior malignancy within previous 3 years (other than adequately treated basal cell or squamous cell carcinoma of the skin, in-situ carcinoma of the cervix) 7. Any of the following laboratory values: · Platelets < 100 ´ 109 / L · Total bilirubin > 1.5 ´ ULRR · ALT or AST > 2.5 ´ ULRR 8. Any severe concurrent condition that would preclude surgery or that would jeopardize compliance with the protocol, eg, uncontrolled cardiac disease or uncontrolled diabetes mellitus 9. Patients known to be HIV, hepatitis B or C positive are not eligible because of the potential to confound the study endpoints, although patients will not be routinely screened for HIV, hepatitis B or C 10. History of : · bleeding diathesis (ie, disseminated intravascular coagulation [DIC], clotting factor deficiency) or · long-term anticoagulant therapy (other than antiplatelet therapy and low dose warfarin – see Section 3.7) 11. History of hypersensitivity to castor oil 12. Treatment with a non-approved or experimental drug within 4 weeks before randomization
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
Efficacy: Comparison of fulvestrant 250 mg and 500 mg by measuring tumour markers at 4 and 16 weeks
Pharmacokinetics and Safety |
|
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 | Yes |
E.6.10 | Pharmacogenetic | Information not present in EudraCT |
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) | 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 | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
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 | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Comparison of two doses, 250 mg and 500 mg of fulvestrant |
|
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 |
|
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
| |
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial months | 6 |