Do recurrent and de novo metastatic biliary tract cancer patients have the same outcome on treatment?

Authors

null

Mairead G McNamara

The Christie NHS Foundation Trust, University of Manchester, Manchester, United Kingdom

Mairead G McNamara , Priya Aneja , Manjula Maganti , Anne M. Horgan , Sean P. Cleary , Jennifer J. Knox

Organizations

The Christie NHS Foundation Trust, University of Manchester, Manchester, United Kingdom, Department of Medicine, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, ON, Canada, Princess Margaret Hospital, Toronto, ON, Canada, Princess Margaret Cancer Centre, University Health Network, Ontario Cancer Institute, University of Toronto, Mount Sinai Hospital-Lunenfeld Research Institute, Toronto, ON, Canada, Department of Medical Oncology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, ON, Canada

Research Funding

No funding sources reported

Background: Biliary tract cancers (BTCs) include cholangiocarcinoma, which refers to cancers arising in the intrahepatic, perihilar or distal biliary tree, ampulla of vater and gallbladder carcinoma. Even after complete surgical resection, a large number of BTC patients develop recurrence. Whether recurrence after surgery and de novo metastatic BTC should have comparable stratification in first-line palliative systemic therapy clinical studies is unknown. Methods: 480 patients who received palliative chemotherapy as first-line treatment for advanced BTC between January 1987 and May 2014 in Princess Margaret Cancer Centre, Toronto were reviewed. Probability of overall survival (OS) was estimated using the Kaplan-Meier method, and independent prognostic factors for OS were identified using the multivariable Cox proportional hazard model. Results: There were 171 recurrent and 309 de novo metastatic patients. Median age at diagnosis was 62 years, performance status<2; 436 (91%) patients, male; 262 (55%). In the recurrent group, 91 (53%) had indwelling stents, ampulla of vater; 50 (29%), gallbladder; 29 (17%), cholangiocarcinoma; 92 (54%). In the de novo metastatic group, 185 (60%) had indwelling stents, primary site was ampulla of vater; 16 (5%), gallbladder; 94 (30%), cholangiocarcinoma; 199 (65%). Systemic treatment received was gemcitabine/platinum doublet in 134 (28%), gemcitabine/5-FU doublet; 186 (39%), gemcitabine; 97 (20%), other; 63 (20%). Median OS for the recurrent group who received first-line palliative chemotherapy was 15.6 months (95% confidence interval [CI] 13.5-18.0) and 14.4 months (95% CI 12.0-16.0) in the de novo metastatic group. Multivariable analysis for OS revealed that gallbladder as the primary site (P=0.03) and ECOG performance status ≥2 (P=0.001) were prognostic for worse OS. De novo metastatic status was not prognostic for worse OS compared with recurrent status (Hazard ratio 1.1, 95% CI 0.82-1.50, P=0.51). Conclusions: Similar treatment of patients with recurrent disease after surgery and de novo metastatic BTC, with first-line palliative chemotherapy is acceptable.

Disclaimer

This material on this page is ©2024 American Society of Clinical Oncology, all rights reserved. Licensing available upon request. For more information, please contact licensing@asco.org

Abstract Details

Meeting

2015 Gastrointestinal Cancers Symposium

Session Type

Poster Session

Session Title

General Poster Session B: Cancers of the Pancreas, Small Bowel, and Hepatobiliary Tract

Track

Cancers of the Pancreas, Small Bowel, and Hepatobiliary Tract

Sub Track

Multidisciplinary Treatment

Citation

J Clin Oncol 33, 2015 (suppl 3; abstr 351)

DOI

10.1200/jco.2015.33.3_suppl.351

Abstract #

351

Poster Bd #

C20

Abstract Disclosures