Multicenter Phase 2 Trial: a Tailored Strategy for Locally Advanced Rectal Carcinoma (GRECCAR4)
Locally Advanced Malignant Neoplasm, Rectal Carcinoma
About this trial
This is an interventional treatment trial for Locally Advanced Malignant Neoplasm focused on measuring locally advanced rectal carcinoma, Tailored treatment strategy, MRI volumetry, Early tumor response
Eligibility Criteria
Inclusion Criteria:
- Histologically confirmed rectal carcinoma
Primary tumor evaluated by pelvic MR Imaging:
i) iT3 ≥c tumors, with MRI showing a predictive CRM ≤ 2 mm or a EMS (Extra Mural Spread) ≥ 5 mm
ii) Resectable iT4 tumors (only randomized within the "poor responders" group)
iii) Any T tumors with MRI showing a predictive CRM ≤ 1 mm
- No detectable metastases: Thorax-abdomen-pelvic CT-scan
- Patient ≥ 18 years
- ECOG Performance Status 0-1-2
- Patient information and written informed consent form signed
- Patient who can receive radiotherapy and chemotherapy
- Negative pregnancy test in women of childbearing potential
- Patient covered by a Social Security system
- Hematology : Haemoglobin ≥ 9 g/dL, WBC ≥ 4000/mm3, neutrophils ≥ 1.5 x 109/L, platelets ≥ 100 x 109/L
- Hepatic function : total bilirubin ≤ 1.5 x ULN, AST and ALT ≤ 3 x ULN, Alkaline phosphatases ≤ 3 x ULN
- Renal function : creatinine ≤ 1.25 x ULN or creatinine clearance ≥ 60 ml/min
Exclusion Criteria:
- Indication for immediate surgery
- Primary tumor not measured at the MRI before inclusion
- Previous pelvic radiotherapy
- Contraindication to radiotherapy and/or chemotherapy
- Severe renal or liver impairment
- Cardiac and/or coronary disease which could contraindicate 5-Fu administration
- Active infectious disease
- Peripheral sensitive neuropathy
- History of prior cancer (except if it was cured more than 5 years ago, and if complete remission)
- Patient (male or female) of reproductive potential not using an effective contraceptive method during the whole treatment and up to 6 months after the completion of treatment
- Concurrent participation in any other clinical trial likely to interfere with the therapeutic schedule
- Fertile female patient not using adequate contraception, or breast-feeding woman
Sites / Locations
- CRLC Val d'Aurelle-Paul Lamarque
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Experimental
Other
Other
Experimental
Arm A: immediate rectal surgery
Arm B: RCT Cap 50 and then rectal surgery
Arm C: RCT Cap 50 and then rectal surgery
Bras D: RCT Cap 60 and then rectal surgery
"Very good" responder patients will be randomly assigned to proctectomy within 2-4 weeks after the end of the induction chemotherapy.
"Very good" responder patients will be randomly assigned to receive chemoradiotherapy combining the administration of oral capecitabine (1600 mg/m2/day, BID) and radiotherapy at a total dose of 50 grays (2Gy/day, 5 days a week, 5 weeks, boost 6 Gy).
"Good or poor" responder patients will be randomly assigned to receive chemoradiotherapy combining the administration of oral capecitabine (1600 mg/m2/day, BID) and radiotherapy at a total dose of 50 grays (2Gy/day, 5 days a week, 5 weeks, boost 6 Gy).
"Good or poor" responder patients will be randomly assigned to receive chemoradiotherapy combining the administration of oral capecitabine (1600 mg/m2/day, BID) and radiotherapy at a total dose of 60 grays (2Gy/day, 5 days a week, 6 weeks, boost 14 Gy).