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Poster display session: Basic science, Endocrine tumours, Gastrointestinal tumours - colorectal & non-colorectal, Head and neck cancer (excluding thyroid), Melanoma and other skin tumours, Neuroendocrine tumours, Thyroid cancer, Tumour biology & pathology

3231 - Thromboembolic risk and survival with Khorana score in resected colorectal cancer patients. Subgroup analysis from the adjuvant TOSCA trial

Date

21 Oct 2018

Session

Poster display session: Basic science, Endocrine tumours, Gastrointestinal tumours - colorectal & non-colorectal, Head and neck cancer (excluding thyroid), Melanoma and other skin tumours, Neuroendocrine tumours, Thyroid cancer, Tumour biology & pathology

Topics

Supportive Care and Symptom Management

Tumour Site

Colon and Rectal Cancer

Presenters

sandro Barni

Citation

Annals of Oncology (2018) 29 (suppl_8): viii150-viii204. 10.1093/annonc/mdy281

Authors

S. Barni1, G. Rosati2, V. Zagonel3, N. Pella4, M. Banzi5, M.G. Zampino6, M. Di Bartolomeo7, L. Rimassa8, P. Marchetti9, E. Maiello10, F. Artioli11, D. Ferrari12, R. Labianca13, P. Bidoli14, A. Zaniboni15, A. Sobrero16, V. Iaffaioli17, S. de Placido18, L.G. Frassineti19, F. Galli20, F. Petrelli1

Author affiliations

  • 1 Oncology, ASST Bergamo Ovest, 24047 - treviglio/IT
  • 2 Oncology, ospedale San Carlo, Potenza/IT
  • 3 Oncology, Istituto Oncologico Veneto-IRCCS, padova/IT
  • 4 Oncology, Azienda Ospedaliero Universitaria Santa Maria della Misericordia, udine/IT
  • 5 Oncology, arcispedale santa maria nuova-IRCCS, reggio emilia/IT
  • 6 Oncology, Istituto Europeo di Oncologia, 20141 - Milan/IT
  • 7 Istituto Nazionale Dei Tumori, Fondazione IRCCS, Milan/IT
  • 8 Humanitas Cancer Center, Istituto Clinico Humanitas, 20089 - Rozzano/IT
  • 9 Oncology, Azienda Ospedaliera St. Andrea, 00189 - Roma/IT
  • 10 Oncology, Ospedale Casa Sollievo della Sofferenza, 71013 - San Giovanni Rotondo/IT
  • 11 Oncology, ospedale Ramazzini, carpi/IT
  • 12 Oncology, azienda ospedaliera san paolo, milano/IT
  • 13 Oncology, Azienda Ospedaliera Papa Giovanni XXIII, 24127 - Bergamo/IT
  • 14 Oncology, San Gerardo dei Tintori Hospital, monza/IT
  • 15 Oncology, casa di cura poliambulanza, brescia/IT
  • 16 Medical Oncology, IRCCS Ospedale San Martino IST, Genoa/IT
  • 17 Oncology, National Cancer Institute, IRCCS Foundation Pascale, napoli/IT
  • 18 Oncology, AOU Policlinico Federico II, 80131 - Napoli/IT
  • 19 Oncology, Istituto Tumori della Romagna I.R.S.T., 47014 - Meldola/IT
  • 20 Laboratory Of Clinical research Methodology, IRCCS istituto ricerche farmacologiche Mario Negri, milano/IT
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Resources

Abstract 3231

Background

The risk of venous thromboembolic events (VTE) during adjuvant chemotherapy for colorectal cancer (CRC) is unknown. We aim to evaluate if the Khorana score (KS) can predict this risk of VTEs and overall survival (OS) in a randomised phase III, noninferiority, open-label trial of different durations of adjuvant chemotherapy in resected stage II-III CRC.

Methods

Data were obtained using a TOSCA [‘Randomised trial investigating the role of FOLFOX-4 or XELOX (three versus six months) regimen duration as adjuvant therapy for patients with stage II/III colon cancer’] study. A logistic regression model was used to test the associations between the risk of VTEs and the KS. The results are expressed as odds ratios (OR) with 95% confidence intervals (95% CI). To assess the effect of the KS on OS, multivariate analyses using Cox regression models was performed. The results are expressed as hazard ratios (HR) with 95% CI.

Results

Among n = 1,380 CRC patients with available data, the VTE risk (n = 72 events: 5.2%) was similar in the three- and six-month duration arms (5.5% vs. 4.9%) with 0.2% of patients belonging to the high-risk KS group. Rates of VTE were similar in the low- and intermediate-risk groups (4.8% vs. 6.4%). KS did not represent an independent predictive factor for VTE risk, with a low positive predictive value and accuracy (6.4% and 74.1%). Chemotherapy duration was not associated with VTE risk. Also, KS was not associated with OS in multivariate analysis (HR = 0.92, 95% CI, 0.63–1.36; P = 0.68).

Conclusions

The use of the KS was not a predictor of VTEs in a low–moderate thromboembolic risk population as CRC. These data did not support the use of KS to estimate the occurrence of VTE during adjuvant chemotherapy and suggest that other assessment risk tools must be evaluated.

Clinical trial identification

Legal entity responsible for the study

GISCAD.

Funding

Has not received any funding.

Editorial Acknowledgement

Disclosure

All authors have declared no conflicts of interest.

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