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Study Evaluating the Tailored Management of Locally-advanced Rectal Carcinoma
Sponsor: Institut du Cancer de Montpellier - Val d'Aurelle
Summary
Locally advanced rectal carcinoma raise the issue of both the oncological control, local and general, and the therapeutic morbidity. Surgery alone can cure only one out of two patients, radiochemotherapy improves the local control but the metastatic risk remains about 30% with enhanced postoperative morbidity and poor functional results. The tumor response to preoperative treatment is the major prognostic factor which revealed the aggressiveness of the tumor. To this day, there are no biologic predictive markers for tumor response. The purpose of this trial is to tailor the management according to the early tumoral response after short and intensive induction chemotherapy. MRI volumetric tumor response will be used to distinguish between good responders and bad responders. "Very good" responders will be randomized to either immediate surgery or radiochemotherapy followed by surgery (Standard arm: Cap 50).
Official title: Multicentric Phase II-III Study Evaluating the Tailored Management of Locally-advanced Rectal Carcinoma After a Favorable Response to Induction Chemotherapy
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
1075
Start Date
2021-11-26
Completion Date
2026-08
Last Updated
2026-02-05
Healthy Volunteers
No
Interventions
Induction chemotherapy - modified FOLFIRINOX regimen
An induction chemotherapy (6 cycles) combining irinotecan 180 mg/m2, oxaliplatin 85 mg/m2, elvorin 200 mg/m2 followed by a 46-hour continuous infusion 2,400 mg/m2) will be delivered every 15 days (D1=D15).
Early tumor response evaluation by MRI volumetry
Two weeks after the CT completion, the tumor volume will be measured by MRI with specific software which automatically borders the tumor so as to determine the early tumor response. A centralized reassessment of all MRI exams will be systematically performed by two radiologists of the coordinator center.
Radiochemotherapy Cap 50
RCT Cap 50 will combine radiotherapy at a dose of 50 Gy by either conventional 3D or Intensity-Modulated RadioTherapy (IMRT) (2 Gy per fraction, 5 fractions per week during 5 weeks / 44 Gy in mini pelvis, and boost 6 Gy on reduced peritumoral volume) with concomitant oral capecitabine at 1600 mg/m2 per day delivered the days of radiotherapy treatment (2 daily intake).
Radical proctectomy with total mesorectal excision
The proctectomy can be performed by laparoscopic surgery or conventional laparotomy.
Locations (30)
Institut Paoli Calmettes
Marseille, Bouches Du Rhône, France
Hôpital Nord de Marseille
Marseille, Bouches Du Rhône, France
Hôpital Européen de MARSEILLE
Marseille, Bouches-du-rhône, France
CHU Besançon
Besançon, Doubs, France
CHU de Bordeaux
Bordeaux, Gironde, France
Insitut Régional du Cancer de Montpellier
Montpellier, Hérault, France
CHU de Nancy
Vandœuvre-lès-Nancy, Lorraine, France
Centre Alexis Vautrin
Nancy, Meurthe Et Moselle, France
Centre Oscart Lambret
Lille, Nord, France
CHU Amiens
Amiens, Picardie, France
CHU Clermont-Ferrand
Clermont-Ferrand, Puy De Dôme, France
CH PAU
Pau, Pyrénées-atlantiques, France
CHU de Lyon
Lyon, Rhône, France
CH Annecy
Annecy, Savoie, France
CHU Rouen
Rouen, Seine-Maritime, France
Hôpital Bicêtre
Le Kremlin-Bicêtre, Val De Marne, France
Bordeaux Colorectal Institute
Bordeaux, France
Centre Georges-François Leclerc
Dijon, France
Chu Grenoble
Grenoble, France
Chu Lille
Lille, France
CAC Léon Bérard
Lyon, France
Hôpital La Timone
Marseille, France
Centre Antoine Lacassagne
Nice, France
CHU de Nîmes
Nîmes, France
Hôpital Saint-Louis
Paris, France
Hôpital Saint-Antoine
Paris, France
Hôpital Européen Georges-Pompidou
Paris, France
Hôpital Diaconesses
Paris, France
Institut de Cancérologie de l'Ouest
Saint-Herblain, France
CHU de Toulouse
Toulouse, France