Ng K.,Dana-Farber Cancer Institute |
Ogino S.,Dana-Farber Cancer Institute |
Ogino S.,Harvard University |
Meyerhardt J.A.,Dana-Farber Cancer Institute |
And 16 more authors.
Journal of the National Cancer Institute | Year: 2011
Background Although preclinical and epidemiological data suggest that statins may have antineoplastic properties, the impact of statin use on patient survival after a curative resection of stage III colon cancer is unknown. Methods We conducted a prospective observational study of 842 patients with stage III colon cancer enrolled in a randomized adjuvant chemotherapy trial from April 1999 to May 2001 to investigate the relationship between statin use and survival. Disease-free survival (DFS), recurrence-free survival (RFS), and overall survival (OS) were investigated by Kaplan-Meier curves and log-rank tests in the overall study population and in a subset of patients stratified by KRAS mutation status (n = 394), and Cox proportional hazards regression was used to assess the simultaneous impact of confounding variables. All statistical tests were two-sided. Results Among 842 patients, 134 (15.9%) reported statin use after completing adjuvant chemotherapy. DFS among statin users and nonusers was similar (hazard ratio [HR] of cancer recurrence or death = 1.04, 95% confidence interval [CI] = 0.73 to 1.49). RFS and OS were also similar between statin users and nonusers (adjusted HR of cancer recurrence = 1.14, 95% CI = 0.77 to 1.69; adjusted HR of death = 1.15, 95% CI = 0.77 to 1.71). Survival outcomes were similar regardless of increasing duration of statin use before cancer diagnosis (Ptrend =. 63,. 63, and. 59 for DFS, RFS, and OS, respectively). The impact of statin use did not differ by tumor KRAS mutation status, with similar DFS, RFS, and OS for statin use among mutant and wild-type subgroups (Pinteraction =. 84,. 67, and. 98 for DFS, RFS, and OS, respectively). Conclusion Statin use during and after adjuvant chemotherapy was not associated with improved DFS, RFS, or OS in patients with stage III colon cancer, regardless of KRAS mutation status. © The Author 2011. Published by Oxford University Press. Source
Ogino S.,Dana-Farber Cancer Institute |
Ogino S.,Harvard University |
Liao X.,Dana-Farber Cancer Institute |
Imamura Y.,Dana-Farber Cancer Institute |
And 17 more authors.
Journal of the National Cancer Institute | Year: 2013
Background Somatic mutations in PIK3CA (phosphatidylinositol-4,5- bisphosphonate 3-kinase [PI3K], catalytic subunit alpha gene) activate the PI3K-AKT signaling pathway and contribute to pathogenesis of various malignancies, including colorectal cancer. Methods We examined associations of PIK3CA oncogene mutation with relapse, survival, and treatment efficacy in 627 stage III colon carcinoma case subjects within a randomized adjuvant chemotherapy trial (5-fluorouracil and leucovorin [FU/LV] vs irinotecan [CPT11], fluorouracil and leucovorin [IFL]; Cancer and Leukemia Group B 89803 [Alliance]). We detected PIK3CA mutation in exons 9 and 20 by polymerase chain reaction and pyrosequencing. Cox proportional hazards model was used to assess prognostic and predictive role of PIK3CA mutation, adjusting for clinical features and status of routine standard molecular pathology features, including KRAS and BRAF mutations and microsatellite instability (mismatch repair deficiency). All statistical tests were two-sided. Results Compared with PIK3CA wild-type cases, overall status of PIK3CA mutation positivity or the presence of PIK3CA mutation in either exon 9 or 20 alone was not statistically significantly associated with recurrence-free, diseasefree, or overall survival (log-rank P > .70; P > .40 in multivariable regression models). There was no statistically significant interaction between PIK3CA and KRAS (or BRAF) mutation status in survival analysis (Pinteraction > .18). PIK3CA mutation status did not appear to predict better or worse response to IFL therapy compared with FU/LV therapy (Pinteraction > .16). Conclusions Overall tumor PIK3CA mutation status is not associated with stage III colon cancer prognosis. PIK3CA mutation does not appear to serve as a predictive tumor molecular biomarker for response to irinotecan-based adjuvant chemotherapy. © The Author 2013. Source
Jeon J.,Dana-Farber Cancer Institute |
Jeon J.,Yonsei University |
Sato K.,Dana-Farber Cancer Institute |
Niedzwiecki D.,Duke University |
And 14 more authors.
Clinical Colorectal Cancer | Year: 2013
Background The impact of physical activity on survival outcomes in patients with recurrent colon cancer has not been studied. We tested the association between the level of postdiagnosis physical activity and survival outcomes of patients with recurrent colon cancer. Patients and Methods We conducted a prospective observational study of 237 patients with stage III colon cancer who had recurrence of disease. Physical activity was measured approximately 6 months after the completion of therapy (14 months after surgical resection) but before detection of recurrent disease. The primary end point of the study was survival time after recurrence. Results The hazard ratio comparing patients who reported at least 18 metabolic equivalent task (MET) hours per week of physical activity with those engaging in < 3 MET hours per week was 0.71 (95% confidence interval, 0.46-1.11). Increasing total MET hours of physical activity per week was associated with a borderline statistical significance trend for improved survival after recurrence (P =.052). The benefit of physical activity on survival was not significantly modified by sex, body mass index (BMI), number of positive lymph nodes, age, baseline performance status, adjuvant chemotherapy regimen, or recurrence-free survival period. Conclusion To our knowledge, this is the first study investigating the association of physical activity with survival outcome of patients with recurrent colon cancer. Although the association exceeded our predefined P trend <.05 for statistical significance, these findings warrant further studies of physical activity in patients with recurrent colorectal cancer. © 2013 Elsevier Inc. All rights reserved. Source
McGovern-Phalen A.M.,Edward Cancer Center
Clinical Journal of Oncology Nursing | Year: 2015
As a participant in the ONS Foundation–supported Breast Cancer Care Quality Measures Set in 2010, the Edward Cancer Center (ECC) identified gaps in patient assessment. Sleep-wake disturbance and distress were two common areas that were lacking consistent assessment when nurses saw patients during their visits. Another issue is the lack of standard methods of practice or a standardized tool. The ECC, in collaboration with Edward Diabetes Center, Linden Oaks Hospital, and other outpatient offices, adopted the use of the Patient Health Questionnaire-9 depression screening tool. The ECC also modified the intervention recommendations to meet the needs of the oncology population. As a result of the findings in the pilot, the ECC was able to implement an evidence-based practice change to improve the overall quality of patient care and provide earlier intervention in an effort to further improve patient outcomes. © 2015 by the Oncology Nursing Society. Source
Livingston R.B.,Arizona Cancer Center |
Barlow W.E.,Cancer Research and Biostatistics |
Kash J.J.,Edward Cancer Center |
Albain K.S.,Loyola University Chicago |
And 5 more authors.
Breast Cancer Research and Treatment | Year: 2011
SWOG trial S0102 showed significant activity of the combination of docetaxel and vinorelbine in HER2- negative metastatic breast cancer (MBC). For HER2- positive patients, additional benefit may occur with the addition of trastuzumab due to its synergy with docetaxel and vinorelbine. Patients with HER2-positive MBC, but without prior chemotherapy for MBC or adjuvant taxane, were eligible. Docetaxel (60 mg/m2) was given intravenously on Day 1, vinorelbine (27.5 mg/m2) intravenously on Days 8 and 15, and filgrastim (5 μg/kg) on Days 2-21 of a 21-day cycle. In addition, patients received weekly infusions of trastuzumab (2 mg/kg) after an initial bolus of 4 mg/kg. The primary outcome was 1 year overall survival (OS), with secondary outcomes of progression-free survival (PFS), response rate, and toxicity. Due to slow accrual (February 2003-December 2006), enrollment was stopped after 76 of 90 planned patients. There have been 32 deaths and 51 progressions among the 74 eligible patients who received treatment. The estimated 1 year OS was 93% (95% CI 84-97%) with a median of 48 months. One-year PFS was 70% (95% CI 58-79%) with a median of 20 months. Response rate for measurable disease was 84%. No deaths were attributed to treatment. Grade 4 toxicities were reported for 19% with neutropenia the most common (15%). The most common grade 3 toxicities (33%) were leucopenia (14%) and fatigue (10%). The combination of trastuzumab, docetaxel, and vinorelbine is effective as first-line chemotherapy in HER2-positive MBC with minimal toxicity. One-year survival estimates are among the highest reported in this population. © Springer Science+Business Media, LLC. 2011. Source