Locally Advanced Malignant NeoplasmPhase 2/3GRECCAR14NCT04749108
Study Evaluating the Tailored Management of Locally-advanced Rectal Carcinoma
A Phase 2/3 study testing Induction chemotherapy - modified FOLFIRINOX regimen, Early tumor response evaluation by MRI volumetry and Radiochemotherapy Cap 50 in people with Locally Advanced Malignant Neoplasm and Rectal Carcinoma, run by Institut du Cancer de Montpellier - Val d'Aurelle at 30 sites in France.
Trial 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… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Locally Advanced Malignant Neoplasm, Rectal Carcinoma
- What is being tested?
- Induction chemotherapy - modified FOLFIRINOX regimen, Early tumor response evaluation by MRI volumetry and Radiochemotherapy Cap 50
- Type of treatment
- Pill or oral medicine, Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,075 participants
- Where
- 30 sitesFrance
- Study dates
- 26 Nov 2021to Sep 2031
- Phase
- Phase 2/3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Written consent,
- Patient who receive Folfirinox,
- Patient aged over 18 years old,
- World Health Organization (WHO) performance status ≥ 1,
- Histologically confirmed diagnosis of adenocarcinoma of the rectum,
- Distal part of the tumor from 1 to 12 cm from the upper part of the levator ani (dynamic rectal examination),
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- No unequivocal evidence on CT-Scan of established metastatic disease,
- MRI evaluation of the locally advanced tumor before neoadjuvant chemotherapy:
- Predictive CRM < 2 mm
- Or T3c-d (extending ≥ 5 mm beyond the muscularis propria) with extra mural venous invasion (EMVI)
- Or T4a-b (except bone and sphincteric invasion).
- NON INCLUSION CRITERIA FOR SCREENING
- Non measurable rectal tumor or not assessed by MRI before inclusion,
- Ultra-low rectal tumor at diagnosis which imposes radiotherapy administration (inferior tumor pole less than 1 cm from the upper part of the levator ani).
- Active cardiac disease including any of the following: a. Congestive heart failure ≥ New York Heart Association (NYHA) class 2 (appendix 4), b. Unstable angina (angina symptoms at rest), new-onset angina (begun within the last 3 months), c. Myocardial infarction less than 6 months before first dose of treatment, d. Cardiac arrhythmias requiring anti-arrhythmic therapy (beta blockers or digoxin are permitted),
- Previous or concurrent cancer that is distinct in primary site or histology from colorectal cancer within 5 years prior to study inclusion, except for curatively treated cervical cancer in situ, non-melanoma skin cancer and superficial bladder tumors [Ta (non invasive tumor), Tis (carcinoma in situ) and T1 (lamina propria invasion)],
- Arterial or venous thrombotic or embolic events such as cerebrovascular accident (including transient ischemic attacks), deep vein thrombosis or pulmonary embolism within 6 months before start of treatment.
- WHO performance status 0-1,
- Patient with tumoral regression ≥ 60% and CRM ≥ 1mm,
- No unequivocal evidence on CT-Scan of established metastatic disease,
- General condition considered suitable for radical pelvic surgery and a systemic therapy with Capecitabine
- Adequate hematologic, hepatic, renal and ionogram function assessed within 7 days prior to study treatment a. Platelet count ≥ 100,000/mm3; Hemoglobin (Hb) ≥ 9 g/dL; Absolute neutrophil count (ANC) ≥ 1,500/ mm3 b. Total bilirubin ≤ 1.5 x Upper Limit Normal (ULN), Alkaline phosphatases ≤ 3 x ULN and ASpartate aminoTransferase (AST) and ALanine aminoTransferase (ALT) ≤ 3 x ULN, c. Serum creatinine ≤ 1.5 x ULN or calculated creatinine clearance ≥ 50 ml/min according to Modification of Diet in Renal Disease (MDRD),
- For women of reproductive potential, negative serum beta human chorionic gonadotropin (β-HCG) pregnancy test obtained within 7 days before the start of study treatment. Women not of reproductive potential are female patients who are postmenopausal or permanently sterilized (e.g., tubal occlusion, hysterectomy, bilateral salpingectomy),
- For women of childbearing potential and men, agreement to use an adequate contraception for the duration of study participation and up to 6 months following completion of therapy. Females of childbearing potential who are sexually active with a non-sterilized male partner must use 2 methods, of effective contraception. The investigator or a designated associate is requested to advise the patient on how to achieve an adequate birth control. Adequate contraception is defined in the study as any medically recommended method (or combination of methods) as per standard of care,
- No evidence of chronic or acute ischemic heart disease,
- Willing to participate to the study, and able to give informed consent and to comply with the treatment and follow-up schedules,
- Affiliation to the French Social Security System.
- NON-INCLUSION CRITERIA FOR EXPERIMENTAL TREATMENT
- Patient with a history of pelvic radiotherapy,
- Contraindication to chemotherapy and/or radiotherapy,
- Complete or partial Dihydropyrimidine deshydrogenase (DPD) deficiency (uracilemia ≥ 16 ng/mL),
- Any infection that could jeopardize treatment administration,
- Any other serious concomitant disease or disorder that may interfere with the patient's participation in the study and safety during the study (e.g., severe liver, heart, kidney, lung, metabolic, or psychiatric disorders),
- History of inflammatory bowel disease,
- Patients with a history of pulmonary fibrosis or interstitial pneumonia,
- Patients using antivitamin K (Coumadin etc…) but it's possible to substitute the antivitamin K treatment with low molecular weight heparins (LMWHs) before starting chemotherapy,
- Known hypersensitivity to Capecitabine drug, study drug classes, or any constituent of the products,
- Patient who received live attenuated vaccine within 10 days of inclusion,
- Pregnant or breastfeeding woman. If a patient is of childbearing age, she must have a negative pregnancy test (serum β-hCG) documented 72 hours prior to inclusion,
- Patient treated with an investigational drug within the last 30 days,
- Patient under curatorship or guardianship or safeguard justice,
- Inability to submit to medical monitoring of the trial for geographical, social or psychological reasons.
Who cannot join
None listed.
Trial locations and contacts
30 sites in 1 country. Contact the study team or a site near you to ask about taking part.
30 sites in 1 country
France30 sites, 30 recruiting
- Recruiting
CHU Amiens
Amiens, Picardie, 80054
Jean-Marc Regimbeau, MD
- Not yet recruiting
CH Annecy
Annecy, Savoie, 74330
Mathieu Baconnier, MD
- Recruiting
CHU Besançon
Besançon, Doubs, 25030
Zaher Lakkis, MD
- Recruiting
CHU de Bordeaux
Bordeaux, Gironde, 33600
Bernard Celerier, MS
- Recruiting
Bordeaux Colorectal Institute
Bordeaux, 33300
Quentin Denost, MD
- Recruiting
CHU Clermont-Ferrand
Clermont-Ferrand, Puy De Dôme, 63000
Anne Dubois, MD
- Not yet recruiting
Centre Georges-François Leclerc
Dijon, 21079
Cédric Chevalier, MD
- Recruiting
Chu Grenoble
Grenoble
Bertrand Trilling, MD
- Recruiting
Hôpital Bicêtre
Le Kremlin-Bicêtre, Val De Marne, 94270
Antoine Brouquet, MD
- Recruiting
Centre Oscart Lambret
Lille, Nord, 59000
Mehrdad Jafari, MD
- Recruiting
Chu Lille
Lille, 59037
Guillaume Piessen, MD
- Recruiting
CHU de Lyon
Lyon, Rhône, 69310
Eddy Cotte, MD
- Recruiting
CAC Léon Bérard
Lyon
Michel Rivoire, MD
Michel Rivoire, MD
- Recruiting
Institut Paoli Calmettes
Marseille, Bouches Du Rhône, 13009
Bernard Lelong, MD, 4-91-22-36-60 ext. +33, lelongb@ipc.unicancer.fr
Bernard Lelong, MD
- Not yet recruiting
Hôpital Nord de Marseille
Marseille, Bouches Du Rhône, 13015
Laura Beyer-Berjot, MD
- Recruiting
Hôpital Européen de MARSEILLE
Marseille, Bouches-du-rhône, 13003
Charles VANBRUGGHE, MD, c.vanbrugghe@hopital-europeen.fr
Charles VANBRUGGHE, MD
- Recruiting
Hôpital La Timone
Marseille, 13005
Laetitia Dahan, MD
- Recruiting
Insitut Régional du Cancer de Montpellier
Montpellier, Hérault, 34298
Philippe Rouanet, MD, 04-67-61-31-50 ext. +33, Philippe.Rouanet@icm.unicancer.fr
Philippe Rouanet, MD
- Recruiting
Centre Alexis Vautrin
Nancy, Meurthe Et Moselle, 54519
Frédéric Marchal, MD
- Recruiting
Centre Antoine Lacassagne
Nice
Ludovic Evesque, MD
- Recruiting
CHU de Nîmes
Nîmes, 30029
Martin Bertrand, MD
- Recruiting
Hôpital Saint-Louis
Paris, 75010
Léon Maggiori, MD
- Recruiting
Hôpital Saint-Antoine
Paris, 75012
Jérémie Lefèvre, MD
- Recruiting
Hôpital Européen Georges-Pompidou
Paris, 75015
Mehdi Karoui, MD
- Recruiting
Hôpital Diaconesses
Paris, 75020
Alain Valverde, MD
- Recruiting
CH PAU
Pau, Pyrénées-atlantiques, 64000
Juliette THAURY, MD, 559724983 ext. +33, juliette.thaury@ch-pau.fr
Juliette THAURY, MD
- Recruiting
CHU Rouen
Rouen, Seine-Maritime, 76031
Jean-Jacques Tuech, MD
- Recruiting
Institut de Cancérologie de l'Ouest
Saint-Herblain, 44800
Frédéric Dumont, MD
- Recruiting
CHU de Toulouse
Toulouse, 31059
Laurent Ghouti, MD
- Recruiting
CHU de Nancy
Vandœuvre-lès-Nancy, Lorraine, 54511
Adeline Germain, MD
About this study
Official title: Multicentric Phase II-III Study Evaluating the Tailored Management of Locally-advanced Rectal Carcinoma After a Favorable Response to Induction Chemotherapy
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).
Read the detailed description
Cancer of the rectum is a common disease. It affects nearly 15,000 new people each year, with more men (53%) than women (47%).
In more than 9 out of 10 cases, it occurs after 50 years. Three types of treatments are used to treat rectal cancer: surgery, radiotherapy and drug treatments.
The standard treatment for Locally Advanced Rectal Cancers (LARC) is multidisciplinary, combining chemotherapy, radiotherapy and surgery. The usual treatment in this situation is called induction chemotherapy administrated before radiochemotherapy. This phase of treatment taking place before surgery is called neoadjuvant therapy.
However, treating all cancers of the locally advanced rectum with the same neoadjuvant treatment exposes patients who are good responders to neoadjuvant chemotherapy with possible toxicity to radiotherapy and patients who are poor responders to ineffectiveness of conventional radiotherapy with surgery and so to a mutilating ineffective treatment.
The short- and long-term toxicity of pelvic radiation may be the most compelling reason to reconsider reflexive neoadjuvant radiochemotherapy (NA-RCT) and to move toward a more individualized approach.
A large North American trial is currently evaluating the suppression of preoperative radiation therapy in patients selected as a good responder to induction chemotherapy.
A first trial called GRECCAR-4 (Surgical Research Group on Rectum CAncer) with induction chemotherapy by 5 Fluorouracil + Irinotecan + Oxaliplatin and personalized radiochemotherapy reported the following results:
- High-dose induction chemotherapy is well tolerated and reproducible
- Early assessment after neo-adjuvant chemotherapy makes it possible to discriminate between good and bad responders without a negative impact on surgery.
- Personalized management of LARC according to the early tumor response to chemotherapy is possible.
- In good responder patients, a resection rate of 100% was achieved (even in the arm without radiotherapy), but due to poor recruitment, it is not possible to draw a formal conclusion regarding these promising results.
- The oncological results at 5 years show a local recurrence rate of 0% for the good responders and 4.8% for the poor responders. The 5-year overall survival was 86.7% with a 5-year progression-free survival of 75.0%.
GRECCAR 14 is the only French trial to question the feasibility of appropriate management of non-metastatic LARC. Its main objective is to evaluate, in good responder patients, personalized management after preoperative CT treatment.
GRECCAR-14 will try to confirm this strategy taking into account the 1st results of GRECCAR 4.
The study will initially focus on 200 patients to assess the surgical quality of this therapeutic strategy and then on 230 additional patients to assess the effectiveness of this personalized treatment on survival without recurrence.
- Being tested
- Induction chemotherapy - modified FOLFIRINOX regimen, Early tumor response evaluation by MRI volumetry, Radiochemotherapy Cap 50, Radical proctectomy with total mesorectal excision
- Medical subject headings
- Rectal Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Induction chemotherapy - modified FOLFIRINOX regimenDrug
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 volumetryOther
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 50Radiation
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 excisionProcedure or surgery
The proctectomy can be performed by laparoscopic surgery or conventional laparotomy.
| Study group | Role | What they receive |
|---|---|---|
| Experimental: Arm A: immediate rectal surgery | Experimental | "Very good" responder patients will be randomly assigned to proctectomy performed within 4 to 6 weeks from randomization. Receives: Drug: Induction chemotherapy - modified FOLFIRINOX regimen; Other: Early tumor response evaluation by MRI volumetry; Procedure: Radical proctectomy with total mesorectal excision |
| RCT Cap 50 and then rectal surgery | Active comparator | 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) followed after 7 weeks by a proctectomy. Receives: Drug: Induction chemotherapy - modified FOLFIRINOX regimen; Other: Early tumor response evaluation by MRI volumetry; Radiation: Radiochemotherapy Cap 50; Procedure: Radical proctectomy with total mesorectal excision |
What is being measured
The primary outcome is the main question the study is designed to answer.
R0 resection rate (R0 is defined as Circumferential resection margin (CRM ≥ 1 mm) for Phase II
The excision limits will be determined precisely on the part, after exhaustive sampling of the maximum tumor extension zones and containing the surface of the inked mesorectum.
Measured: Within 15 days after surgery
3-year Disease free survival (DFS) for Phase III
(DFS is defined as the time interval between randomization and the occurrence of the first event, such as local or metastatic recurrence, the development of a second cancer or death from any cause).Locoregional failure include locally progressive disease leading to an unresectable tumour, local R2 resection, or local recurrence after an R0-R1 resection.
Patients without events at the time of analysis will be censored on the date of the last informative follow-up.
Measured: 3 years
Secondary outcomes (25)
Compliance rate with neoadjuvant treatment schedule
To measure the compliance rate to the whole neoadjuvant schedule (induction CT + radiochemotherapy)
Measured: Within 4.5 months after the start of treatment
Pathological complete response rate
To assess the pathological complete response rate (ypT0N0)
Measured: Within 15 days after surgery
Sphincter-saving surgery rate
To assess the impact of the therapeutic strategy on the rate of sphincter-saving surgery.
Measured: Up to 2 months after the end of the neoadjuvant treatment
Quality of life by using the quality of life questionnaire score (QLQ-C30)
The EORTC QLQ-C30 uses for the questions 1 to 28 a 4-point scale. The scale scores from 1 to 4: 1 ("Not at all"), 2 ("A little"), 3 ("Quite a bit") and 4 ("Very much"). Half points are not allowed. The range is 3. For the raw score, less points are considered to have a better outcome.
The EORTC QLQ-C30 uses for the questions 29 and 30 a 7-points scale. The scale scores from 1 to 7: 1 ("very poor") to 7 ("excellent"). Half points are not allowed. The range is 6. First of all, raw score has to be calculated with mean values. Afterwards linear transformation is performed to be comparable. More points are considered to have a better outcome.
Measured: For a 1-year follow-up
Bowel function, Low anterior resection syndrome (LARS)
Assessed using LARS questionnaire (score 0-42, a high score indicates poor bowel function)
Measured: For a 1-year follow-up
Quality of life by using the quality of life questionnaire score (QLQ-CR29)
Score 26-108, a high score indicates many symptoms of colorectal cancer.
Measured: For a 1-year follow-up
3-year local recurrence free survival rate (L-RFS)
The time interval from the date of randomization to the date of local recurrence or death from any cause).Patients alive without local recurrence will be censored at the date of last follow-up.
Measured: 3 years
3-year metastasis recurrence free survival rate (M-RFS)
The time interval from the date of randomization to the date of metastatic recurrence or death from any cause).Patients alive without metastasis will be censored at the date of last follow-up.
Measured: 3 years
3-year Overall survival (OS)
The time interval from the date of randomization to the date of death from any cause. Patients alive will be censored at the date of last follow-up.
Measured: 3 years
5-year Overall survival (OS)
The time interval from the date of randomization to the date of death from any cause. Patients alive will be censored at the date of last follow-up.
Measured: 5 years
Local recurrence rate
The time interval from the date of randomization to the date of local recurrence. Patients without local recurrence will be censored at the date of last follow-up or death.
Measured: For a 2-3-year follow-up
Clavien-Dindo grade
Grade 1 (light) to Grade 5 = Death of patient . It is widely used throughout surgery for grading adverse events (i.e. complications) which occur as a result of surgical procedures.
Measured: Within 1 month after surgery
Neoadjuvant rectal Score by Fokas
The score uses the variables of clinical tumor stage, pathologic tumor stage, and pathologic nodal stage which are commonly available, furthering its utility in the clinical setting. The final scores range from 0 (good prognostic) to 100 (poor prognostic).
Measured: Within 15 days after surgery
Rates of Total mesorectal excision (TME) grading according to Quirke
This grade is given by the pathologist on the appearance of the mesorectum on fresh specimen (complete grade = good resection), incomplete and near incomplete grade (between good and poor resection), incomplete grade = poor resection)
Measured: Within 15 days after surgery
Distal margin to the tumor
Measured: Within 15 days after surgery
Definitive stoma rate
Measured: 36 MONTHS
Second surgery rate
Measured: 36 MONTHS
Rehospitalization rate
Measured: Within 1 month after surgery
Dworak Classification
Histopathologic analysis of tumor. Grade 0 to grade 4 with (Grade 4 = sterilized tumor to grade 0 = no regression of tumor)
Measured: Approximately 6 weeks after randomization
Metastasis recurrence rate
the time to metastasis defined as the time interval from the date of randomization to the date of metastasis. Patients without metastasis will be censored at the date of last follow-up or death.
Measured: For a 2-3-year follow-up
Disease Fee Survival rate (DFS)
the time interval from the date of randomization until the date of the first cancer-related event, or death from any cause). Patients alive without event will be censored at the date of last follow-up.
Measured: For a 3-year follow-up
Assessment of adverse events by using the NCI-CTCAE version 5 scale
From the signature of informed consent until 60 days after Surgery
Measured: Approximately 72 months for all patients
Evaluation of urinary function by International Prostate Symptom Score (IPSS) questionnaire score
Score 0-35, a high score indicates an impaired urinary function.
Measured: For a 1-year follow-up
Evaluation of sexual function in men by International Index of Erectile Function (IIEFS) questionnaire score
Score 1-25, a low score indicates an impaired sexual function in men.
Measured: For a 1-year follow-up
Evaluation of sexual function in women by Female Sexual Function Index (FSFI) questionnaire score
Score 4-95, a low score indicates an impaired sexual function in women.
Measured: For a 1-year follow-up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Feb 2021
- Study start26 Nov 2021
- Primary completionSep 2029 (estimated)
- Study completionSep 2031 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for Locally Advanced Malignant NeoplasmStudies of the same condition, open and under way.
- More trials run by Institut du Cancer de Montpellier - Val d'AurelleThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2/3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Drug: Induction chemotherapy - modified FOLFIRINOX regimen Other: Early tumor response evaluation by MRI volumetry Radiation: Radiochemotherapy Cap 50 Procedure: Radical proctectomy with total mesorectal excision
- Masking
- None (open label)
- Enrolment
- 1,075 participants (estimated)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Philippe Rouanet, MD, Study chair, Philippe.Rouanet@icm.unicancer.fr
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04749108
- Sponsor's protocol ID
- PROICM 2021-01 GRE
- Other IDs
- 2021-000414-41
- Acronym
- GRECCAR14
- Status last verified
- Sep 2026
- First submitted
- 5 Feb 2021
- Last updated
- 2 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: All data will be available after publication of the results in peer-reviewed revues, and in national and international meetings. It includes all disidentified participants' data, the study protocol, the statistical analysis plan and the analytic code. The corresponding author will provide data and datasets generated and/or analyzed during the study upon reasonable request.
Publications
Sauer R, Liersch T, Merkel S, Fietkau R, Hohenberger W, Hess C, Becker H, Raab HR, Villanueva MT, Witzigmann H, Wittekind C, Beissbarth T, Rodel C. Preoperative versus postoperative chemoradiotherapy for locally advanced rectal cancer: results of the German CAO/ARO/AIO-94 randomized phase III trial after a median follow-up of 11 years. J Clin Oncol. 2012 Jun 1;30(16):1926-33. doi: 10.1200/JCO.2011.40.1836. Epub 2012 Apr 23.
PubMed 22529255Rodel C, Graeven U, Fietkau R, Hohenberger W, Hothorn T, Arnold D, Hofheinz RD, Ghadimi M, Wolff HA, Lang-Welzenbach M, Raab HR, Wittekind C, Strobel P, Staib L, Wilhelm M, Grabenbauer GG, Hoffmanns H, Lindemann F, Schlenska-Lange A, Folprecht G, Sauer R, Liersch T; German Rectal Cancer Study Group. Oxaliplatin added to fluorouracil-based preoperative chemoradiotherapy and postoperative chemotherapy of locally advanced rectal cancer (the German CAO/ARO/AIO-04 study): final results of the multicentre, open-label, randomised, phase 3 trial. Lancet Oncol. 2015 Aug;16(8):979-89. doi: 10.1016/S1470-2045(15)00159-X. Epub 2015 Jul 15.
PubMed 26189067Martin ST, Heneghan HM, Winter DC. Systematic review and meta-analysis of outcomes following pathological complete response to neoadjuvant chemoradiotherapy for rectal cancer. Br J Surg. 2012 Jul;99(7):918-28. doi: 10.1002/bjs.8702. Epub 2012 Feb 23.
PubMed 22362002Bregendahl S, Emmertsen KJ, Lous J, Laurberg S. Bowel dysfunction after low anterior resection with and without neoadjuvant therapy for rectal cancer: a population-based cross-sectional study. Colorectal Dis. 2013 Sep;15(9):1130-9. doi: 10.1111/codi.12244.
PubMed 23581977Chen TY, Wiltink LM, Nout RA, Meershoek-Klein Kranenbarg E, Laurberg S, Marijnen CA, van de Velde CJ. Bowel function 14 years after preoperative short-course radiotherapy and total mesorectal excision for rectal cancer: report of a multicenter randomized trial. Clin Colorectal Cancer. 2015 Jun;14(2):106-14. doi: 10.1016/j.clcc.2014.12.007. Epub 2014 Dec 31.
PubMed 25677122Schrag D, Weiser MR, Goodman KA, Gonen M, Hollywood E, Cercek A, Reidy-Lagunes DL, Gollub MJ, Shia J, Guillem JG, Temple LK, Paty PB, Saltz LB. Neoadjuvant chemotherapy without routine use of radiation therapy for patients with locally advanced rectal cancer: a pilot trial. J Clin Oncol. 2014 Feb 20;32(6):513-8. doi: 10.1200/JCO.2013.51.7904. Epub 2014 Jan 13.
PubMed 24419115Weiser MR, Fichera A, Schrag D, Boughey JC, You YN. Progress in the PROSPECT trial: precision treatment for rectal cancer? Bull Am Coll Surg. 2015 Apr;100(4):51-2. No abstract available.
PubMed 25939207Rouanet P, Rullier E, Lelong B, Maingon P, Tuech JJ, Pezet D, Castan F, Nougaret S; and the GRECCAR Study Group. Tailored Treatment Strategy for Locally Advanced Rectal Carcinoma Based on the Tumor Response to Induction Chemotherapy: Preliminary Results of the French Phase II Multicenter GRECCAR4 Trial. Dis Colon Rectum. 2017 Jul;60(7):653-663. doi: 10.1097/DCR.0000000000000849.
PubMed 28594714Kang JH, Kim YC, Kim H, Kim YW, Hur H, Kim JS, Min BS, Kim H, Lim JS, Seong J, Keum KC, Kim NK. Tumor volume changes assessed by three-dimensional magnetic resonance volumetry in rectal cancer patients after preoperative chemoradiation: the impact of the volume reduction ratio on the prediction of pathologic complete response. Int J Radiat Oncol Biol Phys. 2010 Mar 15;76(4):1018-25. doi: 10.1016/j.ijrobp.2009.03.066. Epub 2009 Aug 3.
PubMed 19647949Rouanet P. Which Trial to Demonstrate the Truthfulness of a Tailored Strategy in Rectal Carcinoma? Dis Colon Rectum. 2018 Jan;61(1):e1-e2. doi: 10.1097/DCR.0000000000000977. No abstract available.
PubMed 29219925Nougaret S, Castan F, de Forges H, Vargas HA, Gallix B, Gourgou S, Rouanet P; GRECCAR Study Group. Early MRI predictors of disease-free survival in locally advanced rectal cancer from the GRECCAR 4 trial. Br J Surg. 2019 Oct;106(11):1530-1541. doi: 10.1002/bjs.11233. Epub 2019 Aug 22.
PubMed 31436325Fokas E, Glynne-Jones R, Appelt A, Beets-Tan R, Beets G, Haustermans K, Marijnen C, Minsky BD, Ludmir E, Quirke P, Sebag-Montefiore D, Garcia-Aguilar J, Gambacorta MA, Valentini V, Buyse M, Rodel C. Outcome measures in multimodal rectal cancer trials. Lancet Oncol. 2020 May;21(5):e252-e264. doi: 10.1016/S1470-2045(20)30024-3.
PubMed 32359501Rouanet P, Castan F, Mazard T, Lemanski C, Nougaret S, Deshayes E, Chalbos P, Gourgou S, Taoum C; GRECCAR, PRODIGE study group. GRECCAR 14 - a multicentric, randomized, phase II-III study evaluating the tailored management of locally advanced rectal carcinoma after a favourable response to induction chemotherapy: Study protocol. Colorectal Dis. 2023 Oct;25(10):2078-2086. doi: 10.1111/codi.16740. Epub 2023 Sep 11.
PubMed 37697712
Study at a glance
From the registry record, last updated by the sponsor on 2 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Multicentric Phase II-III Study Evaluating the Tailored Management of Locally-advanced Rectal Carcinoma After a Favorable Response to Induction Chemotherapy
- ClinicalTrials.gov ID
- NCT04749108
- Acronym / sponsor ID
- GRECCAR14 / PROICM 2021-01 GRE
- Phase
- Phase 2/3
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 1,075 participants (estimated)
- Lead sponsor
- Institut du Cancer de Montpellier - Val d'AurelleUniversity, hospital or other
- Study start
- 26 Nov 2021 (actual)
- Primary completion
- Sep 2029 (estimated)
- Study completion
- Sep 2031 (estimated)
- First posted
- 11 Feb 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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).
Detailed description
Cancer of the rectum is a common disease. It affects nearly 15,000 new people each year, with more men (53%) than women (47%).
In more than 9 out of 10 cases, it occurs after 50 years. Three types of treatments are used to treat rectal cancer: surgery, radiotherapy and drug treatments.
The standard treatment for Locally Advanced Rectal Cancers (LARC) is multidisciplinary, combining chemotherapy, radiotherapy and surgery. The usual treatment in this situation is called induction chemotherapy administrated before radiochemotherapy. This phase of treatment taking place before surgery is called neoadjuvant therapy.
However, treating all cancers of the locally advanced rectum with the same neoadjuvant treatment exposes patients who are good responders to neoadjuvant chemotherapy with possible toxicity to radiotherapy and patients who are poor responders to ineffectiveness of conventional radiotherapy with surgery and so to a mutilating ineffective treatment.
The short- and long-term toxicity of pelvic radiation may be the most compelling reason to reconsider reflexive neoadjuvant radiochemotherapy (NA-RCT) and to move toward a more individualized approach.
A large North American trial is currently evaluating the suppression of preoperative radiation therapy in patients selected as a good responder to induction chemotherapy.
A first trial called GRECCAR-4 (Surgical Research Group on Rectum CAncer) with induction chemotherapy by 5 Fluorouracil + Irinotecan + Oxaliplatin and personalized radiochemotherapy reported the following results:
- High-dose induction chemotherapy is well tolerated and reproducible
- Early assessment after neo-adjuvant chemotherapy makes it possible to discriminate between good and bad responders without a negative impact on surgery.
- Personalized management of LARC according to the early tumor response to chemotherapy is possible.
- In good responder patients, a resection rate of 100% was achieved (even in the arm without radiotherapy), but due to poor recruitment, it is not possible to draw a formal conclusion regarding these promising results.
- The oncological results at 5 years show a local recurrence rate of 0% for the good responders and 4.8% for the poor responders. The 5-year overall survival was 86.7% with a 5-year progression-free survival of 75.0%.
GRECCAR 14 is the only French trial to question the feasibility of appropriate management of non-metastatic LARC. Its main objective is to evaluate, in good responder patients, personalized management after preoperative CT treatment.
GRECCAR-14 will try to confirm this strategy taking into account the 1st results of GRECCAR 4.
The study will initially focus on 200 patients to assess the surgical quality of this therapeutic strategy and then on 230 additional patients to assess the effectiveness of this personalized treatment on survival without recurrence.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- Drug: Induction chemotherapy - modified FOLFIRINOX regimen Other: Early tumor response evaluation by MRI volumetry Radiation: Radiochemotherapy Cap 50 Procedure: Radical proctectomy with total mesorectal excision
| Arm | Type | Receives |
|---|---|---|
| Experimental: Arm A: immediate rectal surgery | Experimental | Drug: Induction chemotherapy - modified FOLFIRINOX regimen, Other: Early tumor response evaluation by MRI volumetry, Procedure: Radical proctectomy with total mesorectal excision"Very good" responder patients will be randomly assigned to proctectomy performed within 4 to 6 weeks from randomization. |
| RCT Cap 50 and then rectal surgery | Active comparator | Drug: Induction chemotherapy - modified FOLFIRINOX regimen, Other: Early tumor response evaluation by MRI volumetry, Radiation: Radiochemotherapy Cap 50, Procedure: Radical proctectomy with total mesorectal excisionVery 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) followed after 7 weeks by a proctectomy. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (42 listed)
- Written consent,
- Patient who receive Folfirinox,
- Patient aged over 18 years old,
- World Health Organization (WHO) performance status ≥ 1,
- Histologically confirmed diagnosis of adenocarcinoma of the rectum,
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Induction chemotherapy - modified FOLFIRINOX regimenAn 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). | Drug | Experimental: Arm A: immediate rectal surgery, RCT Cap 50 and then rectal surgery |
| Early tumor response evaluation by MRI volumetryTwo 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. | Other | Experimental: Arm A: immediate rectal surgery, RCT Cap 50 and then rectal surgery |
| Radiochemotherapy Cap 50RCT 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). | Radiation | RCT Cap 50 and then rectal surgery |
| Radical proctectomy with total mesorectal excisionThe proctectomy can be performed by laparoscopic surgery or conventional laparotomy. | Procedure or surgery | Experimental: Arm A: immediate rectal surgery, RCT Cap 50 and then rectal surgery |
Primary outcome
R0 resection rate (R0 is defined as Circumferential resection margin (CRM ≥ 1 mm) for Phase II
Time frame: Within 15 days after surgery
The excision limits will be determined precisely on the part, after exhaustive sampling of the maximum tumor extension zones and containing the surface of the inked mesorectum.
3-year Disease free survival (DFS) for Phase III
Time frame: 3 years
(DFS is defined as the time interval between randomization and the occurrence of the first event, such as local or metastatic recurrence, the development of a second cancer or death from any cause).Locoregional failure include locally progressive disease leading to an unresectable tumour, local R2 resection, or local recurrence after an R0-R1 resection. Patients without events at the time of analysis will be censored on the date of the last informative follow-up.
25 secondary outcomes
Compliance rate with neoadjuvant treatment schedule
Time frame: Within 4.5 months after the start of treatment
Pathological complete response rate
Time frame: Within 15 days after surgery
Sphincter-saving surgery rate
Time frame: Up to 2 months after the end of the neoadjuvant treatment
Quality of life by using the quality of life questionnaire score (QLQ-C30)
Time frame: For a 1-year follow-up
Bowel function, Low anterior resection syndrome (LARS)
Time frame: For a 1-year follow-up
Quality of life by using the quality of life questionnaire score (QLQ-CR29)
Time frame: For a 1-year follow-up
3-year local recurrence free survival rate (L-RFS)
Time frame: 3 years
3-year metastasis recurrence free survival rate (M-RFS)
Time frame: 3 years
3-year Overall survival (OS)
Time frame: 3 years
5-year Overall survival (OS)
Time frame: 5 years
Local recurrence rate
Time frame: For a 2-3-year follow-up
Clavien-Dindo grade
Time frame: Within 1 month after surgery
Neoadjuvant rectal Score by Fokas
Time frame: Within 15 days after surgery
Rates of Total mesorectal excision (TME) grading according to Quirke
Time frame: Within 15 days after surgery
Distal margin to the tumor
Time frame: Within 15 days after surgery
Definitive stoma rate
Time frame: 36 MONTHS
Second surgery rate
Time frame: 36 MONTHS
Rehospitalization rate
Time frame: Within 1 month after surgery
Dworak Classification
Time frame: Approximately 6 weeks after randomization
Metastasis recurrence rate
Time frame: For a 2-3-year follow-up
Disease Fee Survival rate (DFS)
Time frame: For a 3-year follow-up
Assessment of adverse events by using the NCI-CTCAE version 5 scale
Time frame: Approximately 72 months for all patients
Evaluation of urinary function by International Prostate Symptom Score (IPSS) questionnaire score
Time frame: For a 1-year follow-up
Evaluation of sexual function in men by International Index of Erectile Function (IIEFS) questionnaire score
Time frame: For a 1-year follow-up
Evaluation of sexual function in women by Female Sexual Function Index (FSFI) questionnaire score
Time frame: For a 1-year follow-up
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Sep 2026.
- Background: PubMed 22529255Sauer R, Liersch T, Merkel S, Fietkau R, Hohenberger W, Hess C, Becker H, Raab HR, Villanueva MT, Witzigmann H, Wittekind C, Beissbarth T, Rodel C. Preoperative versus postoperative chemoradiotherapy for locally advanced rectal cancer: results of the German CAO/ARO/AIO-94 randomized phase III trial after a median follow-up of 11 years. J Clin Oncol. 2012 Jun 1;30(16):1926-33. doi: 10.1200/JCO.2011.40.1836. Epub 2012 Apr 23.
- Background: PubMed 26189067Rodel C, Graeven U, Fietkau R, Hohenberger W, Hothorn T, Arnold D, Hofheinz RD, Ghadimi M, Wolff HA, Lang-Welzenbach M, Raab HR, Wittekind C, Strobel P, Staib L, Wilhelm M, Grabenbauer GG, Hoffmanns H, Lindemann F, Schlenska-Lange A, Folprecht G, Sauer R, Liersch T; German Rectal Cancer Study Group. Oxaliplatin added to fluorouracil-based preoperative chemoradiotherapy and postoperative chemotherapy of locally advanced rectal cancer (the German CAO/ARO/AIO-04 study): final results of the multicentre, open-label, randomised, phase 3 trial. Lancet Oncol. 2015 Aug;16(8):979-89. doi: 10.1016/S1470-2045(15)00159-X. Epub 2015 Jul 15.
- Background: PubMed 22362002Martin ST, Heneghan HM, Winter DC. Systematic review and meta-analysis of outcomes following pathological complete response to neoadjuvant chemoradiotherapy for rectal cancer. Br J Surg. 2012 Jul;99(7):918-28. doi: 10.1002/bjs.8702. Epub 2012 Feb 23.
- Background: PubMed 23581977Bregendahl S, Emmertsen KJ, Lous J, Laurberg S. Bowel dysfunction after low anterior resection with and without neoadjuvant therapy for rectal cancer: a population-based cross-sectional study. Colorectal Dis. 2013 Sep;15(9):1130-9. doi: 10.1111/codi.12244.
- Background: PubMed 25677122Chen TY, Wiltink LM, Nout RA, Meershoek-Klein Kranenbarg E, Laurberg S, Marijnen CA, van de Velde CJ. Bowel function 14 years after preoperative short-course radiotherapy and total mesorectal excision for rectal cancer: report of a multicenter randomized trial. Clin Colorectal Cancer. 2015 Jun;14(2):106-14. doi: 10.1016/j.clcc.2014.12.007. Epub 2014 Dec 31.
- Background: PubMed 24419115Schrag D, Weiser MR, Goodman KA, Gonen M, Hollywood E, Cercek A, Reidy-Lagunes DL, Gollub MJ, Shia J, Guillem JG, Temple LK, Paty PB, Saltz LB. Neoadjuvant chemotherapy without routine use of radiation therapy for patients with locally advanced rectal cancer: a pilot trial. J Clin Oncol. 2014 Feb 20;32(6):513-8. doi: 10.1200/JCO.2013.51.7904. Epub 2014 Jan 13.
- Background: PubMed 25939207Weiser MR, Fichera A, Schrag D, Boughey JC, You YN. Progress in the PROSPECT trial: precision treatment for rectal cancer? Bull Am Coll Surg. 2015 Apr;100(4):51-2. No abstract available.
- Background: PubMed 28594714Rouanet P, Rullier E, Lelong B, Maingon P, Tuech JJ, Pezet D, Castan F, Nougaret S; and the GRECCAR Study Group. Tailored Treatment Strategy for Locally Advanced Rectal Carcinoma Based on the Tumor Response to Induction Chemotherapy: Preliminary Results of the French Phase II Multicenter GRECCAR4 Trial. Dis Colon Rectum. 2017 Jul;60(7):653-663. doi: 10.1097/DCR.0000000000000849.
- Background: PubMed 19647949Kang JH, Kim YC, Kim H, Kim YW, Hur H, Kim JS, Min BS, Kim H, Lim JS, Seong J, Keum KC, Kim NK. Tumor volume changes assessed by three-dimensional magnetic resonance volumetry in rectal cancer patients after preoperative chemoradiation: the impact of the volume reduction ratio on the prediction of pathologic complete response. Int J Radiat Oncol Biol Phys. 2010 Mar 15;76(4):1018-25. doi: 10.1016/j.ijrobp.2009.03.066. Epub 2009 Aug 3.
- Background: PubMed 29219925Rouanet P. Which Trial to Demonstrate the Truthfulness of a Tailored Strategy in Rectal Carcinoma? Dis Colon Rectum. 2018 Jan;61(1):e1-e2. doi: 10.1097/DCR.0000000000000977. No abstract available.
- Background: PubMed 31436325Nougaret S, Castan F, de Forges H, Vargas HA, Gallix B, Gourgou S, Rouanet P; GRECCAR Study Group. Early MRI predictors of disease-free survival in locally advanced rectal cancer from the GRECCAR 4 trial. Br J Surg. 2019 Oct;106(11):1530-1541. doi: 10.1002/bjs.11233. Epub 2019 Aug 22.
- Background: PubMed 32359501Fokas E, Glynne-Jones R, Appelt A, Beets-Tan R, Beets G, Haustermans K, Marijnen C, Minsky BD, Ludmir E, Quirke P, Sebag-Montefiore D, Garcia-Aguilar J, Gambacorta MA, Valentini V, Buyse M, Rodel C. Outcome measures in multimodal rectal cancer trials. Lancet Oncol. 2020 May;21(5):e252-e264. doi: 10.1016/S1470-2045(20)30024-3.
- Individual participant dataSharing planned: Yes. All data will be available after publication of the results in peer-reviewed revues, and in national and international meetings. It includes all disidentified participants' data, the study protocol, the statistical analysis plan and the analytic code. The corresponding author will provide data and datasets generated and/or analyzed during the study upon reasonable request.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Philippe Rouanet, MD study chair
Philippe.Rouanet@icm.unicancer.fr
30 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2/3 study testing Induction chemotherapy - modified FOLFIRINOX regimen, Early tumor response evaluation by MRI volumetry and Radiochemotherapy Cap 50 in people with Locally Advanced Malignant Neoplasm and Rectal Carcinoma, run by Institut du Cancer de Montpellier - Val d'Aurelle at 30 sites in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 42 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 2 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 30 sites in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Philippe Rouanet, MD (4 67 61 30 71 ext. +33, Philippe.Rouanet@icm.unicancer.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
R0 resection rate (R0 is defined as Circumferential resection margin (CRM ≥ 1 mm) for Phase II (time frame: Within 15 days after surgery). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04749108, which also lists 13 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Sep 2026.