Determination of Microbiological Factors Associated With Poor Response to Neoadjuvant Treatment in Rectal Cancers
NCT ID: NCT04103567
Last Updated: 2025-02-12
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
NA
220 participants
INTERVENTIONAL
2020-01-14
2030-01-30
Brief Summary
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Detailed Description
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The intestinal microbiota is a true microbial organ, playing a major role in maintaining intestinal homeostasis. Some bacterial species have been identified and suspected of playing a role in colorectal carcinogenesis. Among these species, genotoxin-producing Escherichia coli (CPEC) strains such as colibactin (cyclomodulin encoded by the genomic islet pks) are preferentially detected in patients with colorectal cancer (CRC), especially the most aggressive forms. Recent studies show that the intestinal microbiota is a prognostic factor in the response to certain chemotherapies or immunotherapies, but little work has been done on its potential influence on the effectiveness of radiotherapy. This suggests the possibility of using these biomarkers associated with response to neoadjuvant treatment.
The objective of this project is to determine in a non-invasive manner (fecal samples) the predictive value of the intestinal microbiota and the presence of genotoxin-producing bacteria on the response to neoadjuvant treatment in rectal cancer. This could lead to a better understanding and selection of patients for tailored treatment in rectal cancer.
Conditions
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Study Design
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NA
SINGLE_GROUP
OTHER
NONE
Study Groups
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Biological collection
Fecal samples collected at different times : During inclusion consultation with surgeon, after neoadjuvant treatment and before surgery,
In parallel to this fecal collection, standardized clinical data will be entered into a database
Biological collection
Fecal samples collected at different times : during inclusion consultation with surgeon, after neoadjuvant treatment and before surgery.
Interventions
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Biological collection
Fecal samples collected at different times : during inclusion consultation with surgeon, after neoadjuvant treatment and before surgery.
Eligibility Criteria
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Inclusion Criteria
2. Patient is to receive neoadjuvant treatment (radiochemotherapy or chemotherapy or radiotherapy). Induction chemotherapy such as folfox or folfirinox is allowed
3. Patient who has signed the informed consent of the study
4. Male or female ≥ 18 years old
5. Appropriate contraceptive measures should be used by both men and non-menopausal women before entering the trial until at least 8 weeks after the last course of radiochemotherapy. The investigator should inform the patient about the contraceptive measures to be used.
Exclusion Criteria
2. Presence of an ostomy
3. Previous treatment for rectal cancer
4. Patient not affiliated to a French social protection system
5. Patient not in favour of good compliance with treatment for psychological, family, social or geographical reasons
6. Legal incapacity (Patient under curatorship or guardianship)
7. Prior radiation therapy or pelvic curia in the year prior to inclusion
8. History of other cancers in the last 5 years (except for in-situ cervical carcinomas and non-melanoma skin carcinomas treated optimally)
9. Pregnant or breastfeeding woman
18 Years
ALL
No
Sponsors
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Institut du Cancer de Montpellier - Val d'Aurelle
OTHER
Responsible Party
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Principal Investigators
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Philippe ROUANET, MD
Role: STUDY_CHAIR
Institut régional du cancer de Montpellier
Locations
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Institut régional du Cancer de Montpellier
Montpellier, Hérault, France
CHU Clermont-Ferrand
Clermont-Ferrand, Puy De Dôme, France
Countries
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Central Contacts
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Facility Contacts
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References
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Bray F, Ferlay J, Soerjomataram I, Siegel RL, Torre LA, Jemal A. Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin. 2018 Nov;68(6):394-424. doi: 10.3322/caac.21492. Epub 2018 Sep 12.
Gerard JP, Andre T, Bibeau F, Conroy T, Legoux JL, Portier G, Bosset JF, Cadiot G, Bouche O, Bedenne L; Societe Francaise de Chirurgie Digestive (SFCD), Societe Francaise d'Endoscopie Digestive (SFED0), Societe Francaise de Radiotherapie Oncologique (SFRO). Rectal cancer: French Intergroup clinical practice guidelines for diagnosis, treatments and follow-up (SNFGE, FFCD, GERCOR, UNICANCER, SFCD, SFED, SFRO). Dig Liver Dis. 2017 Apr;49(4):359-367. doi: 10.1016/j.dld.2017.01.152. Epub 2017 Jan 20.
van Gijn W, Marijnen CA, Nagtegaal ID, Kranenbarg EM, Putter H, Wiggers T, Rutten HJ, Pahlman L, Glimelius B, van de Velde CJ; Dutch Colorectal Cancer Group. Preoperative radiotherapy combined with total mesorectal excision for resectable rectal cancer: 12-year follow-up of the multicentre, randomised controlled TME trial. Lancet Oncol. 2011 Jun;12(6):575-82. doi: 10.1016/S1470-2045(11)70097-3. Epub 2011 May 17.
Sauer R, Becker H, Hohenberger W, Rodel C, Wittekind C, Fietkau R, Martus P, Tschmelitsch J, Hager E, Hess CF, Karstens JH, Liersch T, Schmidberger H, Raab R; German Rectal Cancer Study Group. Preoperative versus postoperative chemoradiotherapy for rectal cancer. N Engl J Med. 2004 Oct 21;351(17):1731-40. doi: 10.1056/NEJMoa040694.
Dworak O, Keilholz L, Hoffmann A. Pathological features of rectal cancer after preoperative radiochemotherapy. Int J Colorectal Dis. 1997;12(1):19-23. doi: 10.1007/s003840050072.
Habr-Gama A, Perez RO, Nadalin W, Sabbaga J, Ribeiro U Jr, Silva e Sousa AH Jr, Campos FG, Kiss DR, Gama-Rodrigues J. Operative versus nonoperative treatment for stage 0 distal rectal cancer following chemoradiation therapy: long-term results. Ann Surg. 2004 Oct;240(4):711-7; discussion 717-8. doi: 10.1097/01.sla.0000141194.27992.32.
Renehan AG, Malcomson L, Emsley R, Gollins S, Maw A, Myint AS, Rooney PS, Susnerwala S, Blower A, Saunders MP, Wilson MS, Scott N, O'Dwyer ST. Watch-and-wait approach versus surgical resection after chemoradiotherapy for patients with rectal cancer (the OnCoRe project): a propensity-score matched cohort analysis. Lancet Oncol. 2016 Feb;17(2):174-183. doi: 10.1016/S1470-2045(15)00467-2. Epub 2015 Dec 17.
Rullier E, Rouanet P, Tuech JJ, Valverde A, Lelong B, Rivoire M, Faucheron JL, Jafari M, Portier G, Meunier B, Sileznieff I, Prudhomme M, Marchal F, Pocard M, Pezet D, Rullier A, Vendrely V, Denost Q, Asselineau J, Doussau A. Organ preservation for rectal cancer (GRECCAR 2): a prospective, randomised, open-label, multicentre, phase 3 trial. Lancet. 2017 Jul 29;390(10093):469-479. doi: 10.1016/S0140-6736(17)31056-5. Epub 2017 Jun 7.
Rouanet 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.
Savage DC. Microbial ecology of the gastrointestinal tract. Annu Rev Microbiol. 1977;31:107-33. doi: 10.1146/annurev.mi.31.100177.000543. No abstract available.
Nougayrede JP, Taieb F, De Rycke J, Oswald E. Cyclomodulins: bacterial effectors that modulate the eukaryotic cell cycle. Trends Microbiol. 2005 Mar;13(3):103-10. doi: 10.1016/j.tim.2005.01.002.
Nougayrede JP, Homburg S, Taieb F, Boury M, Brzuszkiewicz E, Gottschalk G, Buchrieser C, Hacker J, Dobrindt U, Oswald E. Escherichia coli induces DNA double-strand breaks in eukaryotic cells. Science. 2006 Aug 11;313(5788):848-51. doi: 10.1126/science.1127059.
Bonnet M, Buc E, Sauvanet P, Darcha C, Dubois D, Pereira B, Dechelotte P, Bonnet R, Pezet D, Darfeuille-Michaud A. Colonization of the human gut by E. coli and colorectal cancer risk. Clin Cancer Res. 2014 Feb 15;20(4):859-67. doi: 10.1158/1078-0432.CCR-13-1343. Epub 2013 Dec 13.
Buc E, Dubois D, Sauvanet P, Raisch J, Delmas J, Darfeuille-Michaud A, Pezet D, Bonnet R. High prevalence of mucosa-associated E. coli producing cyclomodulin and genotoxin in colon cancer. PLoS One. 2013;8(2):e56964. doi: 10.1371/journal.pone.0056964. Epub 2013 Feb 14.
Roy S, Trinchieri G. Microbiota: a key orchestrator of cancer therapy. Nat Rev Cancer. 2017 May;17(5):271-285. doi: 10.1038/nrc.2017.13. Epub 2017 Mar 17.
Villeger R, Lopes A, Veziant J, Gagniere J, Barnich N, Billard E, Boucher D, Bonnet M. Microbial markers in colorectal cancer detection and/or prognosis. World J Gastroenterol. 2018 Jun 14;24(22):2327-2347. doi: 10.3748/wjg.v24.i22.2327.
Taoum C, Carrier G, Jarlier M, Roche G, Gagniere J, Fiess C, De Forges H, Chevarin C, Colombo PE, Barnich N, Rouanet P, Bonnet M. Determination of biomarkers associated with neoadjuvant treatment response focusing on colibactin-producing Escherichia coli in patients with mid or low rectal cancer: a prospective clinical study protocol (MICARE). BMJ Open. 2022 Dec 2;12(12):e061527. doi: 10.1136/bmjopen-2022-061527.
Other Identifiers
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PROICM 2019-14-MIR
Identifier Type: -
Identifier Source: org_study_id
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