E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
hormone receptor positive breast cancer |
|
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 | 10057654 |
E.1.2 | Term | Breast cancer female |
|
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 evaluate the biological impact in terms of increase in serum Estradiol levels after 3-month Letrozole treatment free interval at the end of 1st year of continue letrozole |
|
E.2.2 | Secondary objectives of the trial |
to evaluate markers of endocrine, lipid and bone metabolism |
|
E.2.3 | Trial contains a sub-study | Information not present in EudraCT |
E.3 | Principal inclusion criteria |
- Compliant postmenopausal women with operable breast cancer
- Patients with histologic diagnosis of invasive breast cancer (pT1, pT2, or pT3, Nsentinelnegative, pN0(either i- or i+); M0.
- Patients must have hormone receptor positive tumors properly treated by surgery.
- Written informed consent
- Patients must be accessible for follow-up. |
|
E.4 | Principal exclusion criteria |
- Patients who are premenopausal
- Patients with locally advanced disease (pN1, pN2, pN3) or distant metastatic disease.
- Patients with bilateral invasive breast cancer.
- Patients with positive final margins (referring to only DCIS and invasive cancer, not LCIS).
- Patients with a history of prior ipsilateral or contralateral invasive breast cancer.
- Patients with previous or concomitant malignancy EXCEPT adequately treated (basal or squamous cell carcinoma of the skin, in situ carcinoma of the cervix or bladder, contra- or ipsilateral in situ breast carcinoma).
- Patients with other non-malignant systemic diseases (cardiovascular, renal, hepatic, lung, etc.) that would prevent prolonged follow-up. Patients with previous thrombosis (e.g., DVT) and/or embolism can be included only if medically suitable.
- Patients who received neoadjuvant endocrine therapy.
- Patients who were taking tamoxifen or other SERM (e.g. Raloxifene) or hormone replacement therapy (HRT) within one year prior to their breast cancer diagnosis.
- Patients with psychiatric, addictive, or any disorder, which compromises ability to give informed consent for participation in this study. |
|
E.5 End points |
E.5.1 | Primary end point(s) |
increase of estradiol levels after 3 months interval free of treatment |
|
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) | 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 | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
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) | Information not present in EudraCT |
E.8.2.2 | Placebo | Information not present in EudraCT |
E.8.2.3 | Other | Information not present in EudraCT |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
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 | 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 | 7 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 7 |
E.8.9.2 | In all countries concerned by the trial months | 0 |