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Becherini C, Meattini I, Livi L, Garlatti P, Desideri I, Scotti V, Orzalesi L, Sanchez LJ, Bernini M, Casella D, Nesi S, Nori J, Bianchi S, Pallotta S, Marrazzo L. External accelerated partial breast irradiation for ductal carcinoma in situ: long-term follow-up from a phase 3 randomized trial. TUMORI JOURNAL 2018; 105:205-209. [DOI: 10.1177/0300891618811278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Introduction: For a long time, accelerated partial breast irradiation (APBI) effectiveness for ductal carcinoma in situ (DCIS) has been debated, due to conflicting published results. Recent encouraging data from phase 3 trials reopened new perspectives for this radiation approach. The aim of the present study was to analyze the long-term efficacy and safety results of the series of patients with DCIS enrolled in the APBI arm of the APBI-IMRT-Florence phase 3 trial (NCT02104895). Methods: Patients were treated in a phase 3 randomized trial comparing whole breast irradiation (50 Gy in 25 fractions to the whole breast, plus 10 Gy in 5 fractions to the tumor bed) to APBI (30 Gy in 5 nonconsecutive fractions) using the intensity-modulated radiotherapy technique. Results: Overall, 22 patients were treated in the APBI arm. Median age was 62 years (mean 59; range 42–75 years). At a median follow-up of 9.2 years (mean 8.8; range 3.8–12.1 years), no contralateral invasive/DCIS occurrence, distant metastasis, or breast cancer–related death were recorded. The 5- and 10-year local recurrence, distant metastasis–free survival, and breast cancer–specific survival were 100%. The 10-year overall survival rate was 90.9%. No late toxicity at 5 and 10 years was recorded. Conclusions: Waiting for pending studies and mature follow-up, we confirmed the efficacy and safety of APBI for low-risk DCIS.
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Affiliation(s)
- Carlotta Becherini
- Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Icro Meattini
- Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Lorenzo Livi
- Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Pietro Garlatti
- Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Isacco Desideri
- Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Vieri Scotti
- Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Lorenzo Orzalesi
- Breast Surgery Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Luis Jose Sanchez
- Breast Surgery Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Marco Bernini
- Breast Surgery Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Donato Casella
- Breast Surgery Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Silvia Nesi
- Breast Surgery Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Jacopo Nori
- Diagnostic Senology Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Simonetta Bianchi
- Division of Pathological Anatomy, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Stefania Pallotta
- Medical Physics Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Livia Marrazzo
- Medical Physics Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
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