Abstract
Aims: Low-dose radiation therapy (LDRT) can increase biological efficacy of chemotherapy. This Phase II trial evaluates LDRT plus FOLFIRI-bevacizumab (FOLFIRI-B) in metastatic colorectal cancer. Materials & methods: Primary objective: raising the clinical complete response rate from 5 to 25%. Secondary objectives: toxicity, progression-free survival. Patients underwent 12 FOLFIRI-B cycles plus two daily LDRT fractions (20 cGy/6 h interval) on each cycle. Statistical analysis was planned on 18 patients. Results: Results on 18 patients are reported. Specifically considering irradiated sites: 15/18 patients had a partial (11/18) or complete (4/18) response. Among 11 partial responders, three became a pathological CR after surgery. Grade 3-4 toxicity was recorded in two patients (11.1%). At median follow-up of 30 months (range: 8-50), 7/18 patients progressed in irradiated sites. Conclusion: Seven out of 18 patients (38.9%) had clinical or pathological CR in lesions treated with LDRT. Further studies on this newer treatment modality seem justified.
Lingua originale | English |
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pagine (da-a) | 779-787 |
Numero di pagine | 9 |
Rivista | Future Oncology |
Volume | 12 |
DOI | |
Stato di pubblicazione | Pubblicato - 2016 |
Keywords
- Adult
- Aged
- Antineoplastic Combined Chemotherapy Protocols
- Bevacizumab
- Camptothecin
- Cancer Research
- Chemoradiotherapy
- Colorectal Neoplasms
- Female
- Fluorouracil
- Humans
- Leucovorin
- Male
- Middle Aged
- Neoplasm Metastasis
- Neoplasm Staging
- Oncology
- Phase II
- Radiotherapy Dosage
- Treatment Outcome
- bevacizumab
- chemo-sensitization
- low-dose radiotherapy
- metastatic colorectal cancer
- multidisciplinary integrated treatments