The Impact of Diabetes Mellitus and Metformin Treatment on Survival of Patients with Advanced Pancreatic Cancer Undergoing Chemotherapy / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: A causal relationship between diabetes mellitus (DM) and pancreatic cancer is well established. However, in patients with advanced pancreatic cancer (APC) who receive palliative chemotherapy, the impact of DM on the prognosis of APC is unclear. MATERIALS AND METHODS: We retrospectively enrolled APC patients who received palliative chemotherapy between 2003 and 2010. The patients were stratified according to the status of DM, in accordance with 2010 DM criteria (American Heart Association/American Diabetes Association). DM at least 2 years' duration prior to diagnosis of APC was defined as remote-onset DM (vs. recent-onset). RESULTS: Of the 349 APC patients, 183 (52.4%) had DM. Among the patients with DM, 160 patients had DM at the time of diagnosis of APC (remote-onset, 87; recent-onset, 73) and the remaining 23 patients developed DM during treatment of APC. Ultimately, 73.2% of patients (134/183) with DM received antidiabetic medication, including metformin (56 patients, 41.8%), sulfonylurea (62, 45.5%), and insulin (43, 32.1%). In multivariate analysis, cancer extent (hazard ratio [HR], 1.792; 95% confidence interval [CI], 1.313 to 2.445; p < 0.001) showed association with decreased overall survival (OS), whereas a diagnosis of DM (HR, 0.788; 95% CI, 0.615 to 1.009; p=0.059) conferred positive tendency on the OS. Metformin treatment itself conferred better OS in comparison within DM patients (HR 0.693; 95% CI, 0.492 to 0.977; p=0.036) and even in all APC patients (adjusted HR, 0.697; 95% CI, 0.491 to 1.990; p=0.044). CONCLUSION: For APC patients receiving palliative chemotherapy, metformin treatment is associated with longer OS. Patients with DM tend to survive longer than those without DM.

Concurrent Chemoradiotherapy Versus Chemotherapy Alone for Unresectable Locally Advanced Pancreatic Cancer: A Retrospective Cohort Study / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: The optimal treatment strategy for locally advanced pancreatic cancer (LAPC), particularly the role of concurrent chemoradiotherapy (CCRT), remains debatable. We compared the clinical outcomes of CCRT and palliative chemotherapy alone (CA) in patients with unresectable LAPC. MATERIALS AND METHODS: Patients with LAPC who were consecutively treated between 2003 and 2010 were included. Resectability was evaluated according to National Comprehensive Cancer Network ver. 1.2012. The clinical outcomes for each treatment group (CCRT vs. CA) were evaluated retrospectively. RESULTS: Sixty-three patients (58.9%) and 44 patients (41.1%) were treated with CCRT and CA, respectively. The CCRT cohort included patients who were treated with CCRT with or without chemotherapy backbone (CCRT alone, induction chemotherapy-CCRT, CCRT-maintenance chemotherapy, and induction-CCRT-maintenance chemotherapy). Median progression-free survival (PFS) and overall survival (OS) of all patients were 7.2 months and 13.1 months. PFS of the CCRT and CA groups was 9.0 months and 4.4 months, respectively (p=0.020). OS of the CCRT and CA groups was 15.4 months and 9.3 months, respectively (p=0.011). In multivariate analysis, the adjusted hazard ratio of CCRT was 0.536 (p=0.003) for OS and 0.667 (p=0.078) for PFS. Although the pattern of failure was similar in the CCRT and CA groups, the times to both local and distant failure were significantly longer in the CCRT group. CONCLUSION: In patients with unresectable LAPC, those who underwent CCRT during their entire treatment courses had longer OS than patients treated with chemotherapy alone.

Cancer Treatment near the End-of-Life Becomes More Aggressive: Changes in Trend during 10 Years at a Single Institute / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: The purpose of this study was to investigate and compare cancer treatment near the end-of-life (EOL) over a 10-year period. MATERIALS AND METHODS: Patients with advanced solid cancer at Seoul National University Hospital who received palliative chemotherapy and had died were enrolled. We categorized the consecutive patients according to two time periods: 2002 (n=57) and 2012 (n=206). Aggressiveness of cancer treatment near the EOL was evaluated. RESULTS: The median patient age was 62, and 65.4% of patients (n=172) were male. Time from the last chemotherapy to death (TCD) was found to have been significantly shortened, from 66.0 days to 34.0 days during 10 years (p < 0.001); 17% of patients received molecular targeted agents as the last chemotherapy regimen in 2012. The proportion of patients who received intensive care unit care within the last month increased from 1.8% in 2002 to 19.9% in 2012 (p < 0.001), and emergency room visits within the last month also increased from 22.8% to 74.8% (p < 0.001). Although hospice referral increased from 9.1% to 37.4% (p < 0.001), timing of referral was delayed from median 53 days to 8 days before death (p=0.004). Use of targeted agents as the last chemotherapy for over-two-regimen users was associated with shortened TCD (hazard ratio, 2.564; p=0.002). CONCLUSION: Cancer treatment near the EOL became more aggressive over 10 years.

A Case Report of Breast Cancer with Extensive Pulmonary Lymphovascular Tumor Emboli / 한국유방암학회지

We describe a patient with breast cancer who relapsed with an extensive pulmonary lymphovascular tumor embolism. A 38-year-old female, who previously received neoadjuvant chemotherapy and curative resection of breast cancer, underwent adjuvant chemotherapy and was referred to the emergency room because of sudden-onset pleuritic chest pain lasting for 10 days. Despite a trial of empirical antibiotics, the chest pain and the extent of consolidative lung lesion on chest radiographs rapidly aggravated. We performed an open lung biopsy to confirm the etiology. The histopathological review revealed a hemorrhagic infarction caused by lymphovascular tumor emboli from a metastatic breast carcinoma. Palliative first-line chemotherapy was administered, consisting of ixabepilone and capecitabine, and the lung lesion improved markedly.

Acute Lymphoblastic Leukemia in Elderly Patients: A Single Institution's Experience

BACKGROUND/AIMS: We investigated the clinical characteristics and prognosis of elderly patients with acute lymphoblastic leukemia (ALL). METHODS: We reviewed the clinical data, laboratory findings, bone marrow findings, and cytogenetic analysis of elderly patients (> or = 60 years) with ALL, and data of an additional 101 younger adult patients ( or = 60 years) and 101 younger adult patients ( or = 60 years) was 10.3 months (p = 0.003). In the elderly patients with ALL, T cell lineage and the presence of lymphadenopathy were significant prognostic factors for OS in a univariate analysis (p = 0.033 and 0.041, respectively). CONCLUSIONS: The outcomes of Korean elderly patients with ALL were poor, and the shorter OS was mainly due to the low CR rate. T-cell lineage and the presence of lymphadenopathy were significant prognostic factors in Korean elderly patients with ALL.