Hypofractionated Versus Conventional Fractionation Radiotherapy
Breast Cancer, Radiation Toxicity
About this trial
This is an interventional treatment trial for Breast Cancer focused on measuring breast cancer, radiotherapy, hypofractionated therapy, nodal irradiation
Eligibility Criteria
Inclusion Criteria:
- Female;
- Older than 18;
- Breast cancer stage T1 - T3;
- At least 1 lymph node positive;
- Treated with mastectomy or conservative surgery;
- Negative surgical margins;
- No distant metastasis;
- No supraclavicular or internal mammary nodes metastases;
- Adjuvant systemic therapy with chemotherapy, endocrine therapy or anti-HER2 (Human - - Epidermal Growth Factor Receptor 2) treatment is accepted;
- Signed informed consent.
Exclusion Criteria:
- Positive surgical margins;
- Concomitant chemotherapy;
- Supraclavicular or internal mammary nodes metastases;
- Distant metastasis;
- Previous thoracic radiotherapy;
- Bilateral breast cancer;
- Patients with collagen diseases;
- Unable or unwilling to sign inform consent.
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Active Comparator
Experimental
Conventional radiotherapy
Hypofractionated radiotherapy
50 Gy in 25 fractions to chest wall or whole breast and regional lymph regions (supraclavicular fossa with or without axilla), followed by tumor bed boost of 10 Gy in 5 fractions in case of breast conserving surgery. Total time: 5-6 weeks.
40 Gy in 15 fractions (2.67 Gy each) to chest wall or whole breast and regional lymph regions (supraclavicular fossa with or without axilla). Patients undergoing breast conserving surgery will receive concomitant boost with total dose of 48 Gy in 15 fractions (3.20 Gy each) to tumor bed. Total time: 3 weeks.