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Poster Display session 2

3082 - Prognostic and predictive role of body mass index (BMI) in metastatic colorectal cancer (mCRC): a pooled analisys of TRIBE and TRIBE-2 studies by GONO


29 Sep 2019


Poster Display session 2


Tumour Site

Colon and Rectal Cancer


Emanuela Dell'Aquila


Annals of Oncology (2019) 30 (suppl_5): v198-v252. 10.1093/annonc/mdz246


E. Dell'Aquila1, D. Rossini2, M. Stellato1, F. Bergamo3, G. Aprile4, F. Morano5, R. Intini3, E. Fea6, M. Ronzoni7, M. Libertini8, A. Buonadonna9, L. Fanchini10, L. Marcucci11, E. Maiello12, F. Marmorino2, A. Boccaccino2, S. Cordio13, G. Masi2, A. Falcone2, D. Santini1

Author affiliations

  • 1 Department Of Medical Oncology, Campus Bio-Medico University of Rome, 00128 - Rome/IT
  • 2 Department Of Translational Research And New Technologies In Medicine And Surgery, Unit of Medical Oncology 2, Azienda Ospedaliera Universitaria Pisana, 56126 - Pisa/IT
  • 3 Medical Oncology Unit 1, Veneto Institute of Oncology IRCCS, 35128 - Padua/IT
  • 4 Department Of Oncology, University Hospital, 33100 - Udine/IT
  • 5 Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 - Milan/IT
  • 6 Medical Oncology, Azienda Ospedaliera S Croce e Carle, 12100 - Cuneo/IT
  • 7 Medical Oncology, IRCCS San Raffaele, 20132 - Milan/IT
  • 8 Oncology Unit, Fondazione Poliambulanza, 25124 - Brescia/IT
  • 9 Department Of Clinical Oncology, Centro di Riferimento Oncologico (CRO) - IRCCS, 33081 - Aviano/IT
  • 10 Ssd Colorectal Cancer Unit Dipartimento Di Oncologia, AOU Città della Salute e della Scienza di Torino, 10126 - Turin/IT
  • 11 Department Of Oncology, Azienda USL Toscana Nord Ovest, 56025 - Pontedera/IT
  • 12 Oncology Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 - San Giovanni Rotondo/IT
  • 13 S.c. Di Oncologia Medica, ARNAS Garibaldi, 95123 - Catania/IT


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Abstract 3082


Obesity is associated with an increased risk of development and recurrence of colorectal cancer. The role of obesity in mCRC patients (pts) is still unclear, especially in those treated with triplet plus bevacizumab (bev). The aim of our study was to evaluate the prognostic and predictive role of BMI in mCRC pts treated with FOLFOXIRI plus bev or FOLFIRI/FOLFOX plus bev in the TRIBE and TRIBE-2 trial.


1160 pts enrolled in TRIBE and TRIBE-2 trials were included. Baseline height and weight were used to assign patients to one of the following BMI categories: underweight (group A = BMI <18.5 kg/m2; 52 pts), normal (group B= BMI 18.5–29.9 kg/m2; 952 pts) and obese (group C > 30 kg/m2; 156 pts).


In our population, no differences in terms of PFS (p = 0.38) or OS (p = 0.93) resulted between three groups. No interaction effect between treatment arm and BMI was evident in terms of PFS (HR: 0.70 [95%CI: 0.40-1.22]; HR: 0.78 [95%CI: 0.68-0.89]; HR: 0.66 [95%CI: 0.48-0.91]; p for interaction= 0.61, in group A,B,C respectively) or OS (Group A HR: 0.62 [95%CI: 0.31-1.25]; Group B HR: 0.84 [95%CI: 0.72-0.98];Group C HR: 0.67 [95%CI: 0.46-0.99] p for interaction= 0.44). No statistically significant difference in terms of dose reductions due to toxicities were required according to BMI in overall population (p = 0.48) and in pts treated with FOLFOXIRI plus bev (p = 0.57).


BMI was not prognostic either for PFS or for OS in our population. Our analyses showed that the advantage of FOLFOXIRI plus bev versus FOLFIRI/FOLFOX plus bev was independent from BMI.

Clinical trial identification

Editorial acknowledgement

Legal entity responsible for the study

Daniele Santini.


Has not received any funding.


A. Falcone: Advisory / Consultancy, advisory board and Institutional funding to research: Amgen; Advisory / Consultancy, advisory board and Institutional funding to research: Roche; Advisory / Consultancy, advisory board and Institutional funding to research: Bayer; Advisory / Consultancy, advisory board and Institutional funding to research: Merck; Advisory / Consultancy, advisory board and Institutional funding to research: Servier; Advisory / Consultancy, advisory board and Institutional funding to research: Lilly. All other authors have declared no conflicts of interest.

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