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Daphna Y. Spiegel, Matthew J. Boyer, Julian C. Hong, Christina D. Williams, Michael J. Kelley, Joseph K. Salama and Manisha Palta

Background: Adjuvant chemotherapy (AC) after chemoradiation (CRT) and surgery for locoregionally advanced rectal cancer (LARC) is a standard of care in the United States. This study examined the role, optimal regimen, and duration of AC using data from the largest integrated health system in the United States. Patients and Methods: Using the Veterans Affairs Central Cancer Registry, patients with stage II–III rectal cancer diagnosed in 2001 through 2011 who received neoadjuvant CRT and surgery with or without AC were identified. Kaplan-Meier analysis, log-rank tests, and propensity score (PS) adjustment analysis were used to assess survival. Results: A total of 866 patients were identified; 417 received AC and 449 did not (observation [OBS] group). Median follow-up was 109 months. Median disease-specific survival (DSS) was not reached. Six-year DSS was 73.7%; 79.5% for the AC group versus 68.0% for the OBS group. PS-matched analysis for DSS favored AC (P=.0002). Median overall survival (OS) was 90.8 months. Six-year OS was 56.7%; 64.3% for AC versus 49.6% for OBS. In PS-matched analysis, median OS was 117.4 months for AC and 74.3 months for OBS (P<.0001). A DSS advantage was seen when comparing ≥4 months with <4 months of AC (P=.023). No difference in DSS or OS was seen with single-agent versus multiagent AC. Conclusions: In this population of patients with LARC treated with neoadjuvant CRT and surgery, OS and DSS were improved among those treated with AC versus OBS. DSS benefits were seen with ≥4 months of AC. No additional benefit was observed with multiagent therapy. In the absence of phase III data, these findings support the use of AC for LARC.

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Al B. Benson III, Michael I. D'Angelica, Daniel E. Abbott, Thomas A. Abrams, Steven R. Alberts, Daniel A. Anaya, Chandrakanth Are, Daniel B. Brown, Daniel T. Chang, Anne M. Covey, William Hawkins, Renuka Iyer, Rojymon Jacob, Andrea Karachristos, R. Kate Kelley, Robin Kim, Manisha Palta, James O. Park, Vaibhav Sahai, Tracey Schefter, Carl Schmidt, Jason K. Sicklick, Gagandeep Singh, Davendra Sohal, Stacey Stein, G. Gary Tian, Jean-Nicolas Vauthey, Alan P. Venook, Andrew X. Zhu, Karin G. Hoffmann and Susan Darlow

The NCCN Guidelines for Hepatobiliary Cancers provide treatment recommendations for cancers of the liver, gallbladder, and bile ducts. The NCCN Hepatobiliary Cancers Panel meets at least annually to review comments from reviewers within their institutions, examine relevant new data from publications and abstracts, and reevaluate and update their recommendations. These NCCN Guidelines Insights summarize the panel's discussion and most recent recommendations regarding locoregional therapy for treatment of patients with hepatocellular carcinoma.

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NCCN Guidelines Insights: Hepatobiliary Cancers, Version 2.2019

Featured Updates to the NCCN Guidelines

Al B. Benson III, Michael I. D’Angelica, Daniel E. Abbott, Thomas A. Abrams, Steven R. Alberts, Daniel A. Anaya, Robert Anders, Chandrakanth Are, Daniel Brown, Daniel T. Chang, Jordan Cloyd, Anne M. Covey, William Hawkins, Renuka Iyer, Rojymon Jacob, Andreas Karachristos, R. Kate Kelley, Robin Kim, Manisha Palta, James O. Park, Vaibhav Sahai, Tracey Schefter, Jason K. Sicklick, Gagandeep Singh, Davendra Sohal, Stacey Stein, G. Gary Tian, Jean-Nicolas Vauthey, Alan P. Venook, Lydia J. Hammond and Susan D. Darlow

The NCCN Guidelines for Hepatobiliary Cancers provide treatment recommendations for cancers of the liver, gallbladder, and bile ducts. The NCCN Hepatobiliary Cancers Panel meets at least annually to review comments from reviewers within their institutions, examine relevant new data from publications and abstracts, and reevaluate and update their recommendations. These NCCN Guidelines Insights summarize the panel’s discussion and updated recommendations regarding systemic therapy for first-line and subsequent-line treatment of patients with hepatocellular carcinoma.