Aim of the study is to evaluate achievement of complete pathologic response (pCR) in high-risk rectal cancer treated with neoadjuvant concomitant chemotherapy plus adaptive-intensity modulated imaging-guided radiotherapy
AIDA-RE-1 is an interventional prospective trial for the treatment of locally advanced high-risk rectal cancer. In neoadjuvant setting, patients are treated with standard chemotherapy plus experimental radiotherapy. The total dose to clinical target volume (CTV, rectum and locoregional lymph nodes) is 45 Gy, with a concomitant boost of 5 Gy to gross tumor volume (GTV), delivered with IMRT-SIB (intensity modulated radiotherapy-simultaneous integrated boost) technique in 25 fractions. After 2 weeks of treatment, patients are evaluated with 18 FDG-PET and sequential boost of 5 Gy (in 2 fractions) is planned.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
9
Radiation Oncology Center, Department of Experimental, Diagnostic and Speciality Medicine- DIMES, University of Bologna, S.Orsola-Malpighi Hospital
Bologna, BO, Italy
RECRUITINGcomplete pathological response (pCR)
pCR is defined as ypT0N0
Time frame: 6 weeks
Acute toxicity
Acute toxicity is evaluated using CTCAE criteria
Time frame: 6 months
Quality of Life (QoL)
QoL is evaluated using EORTC QoL questionnaire
Time frame: 1 year
Late toxicity
Late toxicity is evaluated using CTCAE criteria
Time frame: 1 year
Dosimetric advantage of GTV-boost reduction
Dosimetric advantage is evaluated using DVHs (Dose Volume Histograms)
Time frame: 6 weeks
Evaluation of PET-response as predictive factor
Correlation between SUV (Standardized Uptake Value) and pathological response
Time frame: 1 year
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