BackgroundAtrial fibrillation is associated with higher mortality. Identification of causes of death and contemporary risk factors for all‐cause mortality may guide interventions.Methods and ResultsIn the Rivaroxaban Once Daily Oral Direct Factor Xa Inhibition Compared with Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial Fibrillation (ROCKET AF) study, patients with nonvalvular atrial fibrillation were randomized to rivaroxaban or dose‐adjusted warfarin. Cox proportional hazards regression with backward elimination identified factors at randomization that were independently associated with all‐cause mortality in the 14 171 participants in the intention‐to‐treat population. The median age was 73 years, and the mean CHADS 2 score was 3.5. Over 1.9 years of median follow‐up, 1214 (8.6%) patients died. Kaplan–Meier mortality rates were 4.2% at 1 year and 8.9% at 2 years. The majority of classified deaths (1081) were cardiovascular (72%), whereas only 6% were nonhemorrhagic stroke or systemic embolism. No significant difference in all‐cause mortality was observed between the rivaroxaban and warfarin arms (P=0.15). Heart failure (hazard ratio 1.51, 95% CI 1.33–1.70, P<0.0001) and age ≥75 years (hazard ratio 1.69, 95% CI 1.51–1.90, P<0.0001) were associated with higher all‐cause mortality. Multiple additional characteristics were independently associated with higher mortality, with decreasing creatinine clearance, chronic obstructive pulmonary disease, male sex, peripheral vascular disease, and diabetes being among the most strongly associated (model C‐index 0.677).ConclusionsIn a large population of patients anticoagulated for nonvalvular atrial fibrillation, ≈7 in 10 deaths were cardiovascular, whereas <1 in 10 deaths were caused by nonhemorrhagic stroke or systemic embolism. Optimal prevention and treatment of heart failure, renal impairment, chronic obstructive pulmonary disease, and diabetes may improve survival.Clinical Trial Registration URL: https://www.clinicaltrials.gov/. Unique identifier: NCT00403767.
BACKGROUND Cisplatin‐based combinations are considered to be the standard treatment for advanced transitional cell carcinoma (TCC) of the urothelium. Many of the patients are elderly with concomitant diseases or impaired renal function. We studied the tolerance and activity of the gemcitabine/carboplatin combination as a therapeutic alternative. METHODS Patients with locally advanced or metastatic TCC of the urothelium were treated with gemcitabine 1000 mg/m2 on Days 1 and 8 and carboplatin area under the concentration‐time curve 5 on Day 1 every 21 days. Patients with creatinine clearance of 30 mL/min or above and Karnofsky performance status (KPS) scores 60 or above were enrolled. RESULTS A total of 227 cycles were administered to 41 patients, with an average of 5.5 cycles per patient (range, 1–8 cycles). Creatinine clearance was below 60 mL/min in 54% of patients, KPS was 70 or below in 37% of patients, and 37% of patients were 70 years old or older. Hematologic toxicity was mainly Grade 3/4 neutropenia in 63%, Grade 3/4 thrombocytopenia in 32%, and Grade 3/4 anemia in 54% of patients. There were only three episodes of febrile neutropenia and one death from neutropenic sepsis. Nonhematologic toxicity was mild, with asthenia as the most frequently reported event. We obtained 6 complete and 17 partial responses, for an overall response rate of 56.1% (95% confidence interval [CI], 40.6–71.6%). Progression‐free survival was 7.2 months (95% CI, 5.7–8.5) and median survival was 10.1 months (95% CI, 8.8–12.2). CONCLUSIONS The combination of gemcitabine plus carboplatin achieves a similar result to doublets using cisplatin. It has an acceptable toxicity profile and enables patients with impaired renal function and/or poor performance status and elderly patients to be treated. Cancer 2003;97:2180–6. © 2003 American Cancer Society. DOI 10.1002/cncr.10990
Objective: The objective was to determine the impact of the coexpression of epidermal growth factor receptor (EGFR) and tumor marker c-erbB-2 on disease-free survival (DFS) and pelvic relapse-free survival (PRFS) in patients with locally advanced cervical cancer (LACC) receiving concurrent chemoradiotherapy. Methods: The expression of EGFR and c-erbB-2 was assessed by immunohistochemistry, which was centralized and blinded to outcome. Univariate and multivariate analyses were used to evaluate the impact of EGFR and c-erbB-2 on DFS and PRFS. Results: 170 patients with LACC were included and received concurrent chemoradiotherapy. 25 (15%) biopsies were considered EGFR and c-erbB-2 positive; 100 (59%) were either EGFR or c-erbB-2 positive, and 45 (26%) were EGFR and c-erbB-2 negative. The 3- and 5-year DFS was 39% each for EGFR- and c-erbB-2-positive patients, 54 and 49%, respectively, for EGFR- or c-erbB-2-positive patients, and 76 and 72%, respectively, for EGFR- and c-erbB-2-negative patients (p = 0.006). EGFR- and c-erbB-2-positive tumors were significantly associated with a decrease in PRFS (hazard ratio, HR, 3.99; 95% confidence interval, CI, 1.44–11.05, p = 0.007), and DFS (HR 2.9; 95% CI, 1.26–6.66, p = 0.01). Conclusion: Patients with LACC coexpressing EGFR and c-erbB-2, and treated with concurrent chemoradiotherapy, had a worse clinical prognosis with shorter DFS and PRFS.
Tumoral angiogenesis is regulated by the balance between factors that activate and inhibit angiogenesis. Elevated levels of activators have been associated with a poor prognosis in cancer patients, but little is known about the net balance between circulating activators and inhibitors in these patients. This study was designed to determine whether the balance between circulating concentrations of the angiogenesis inhibitor TSP-1 and the activator VEGF differs from that in healthy persons, and to shed light on the possible role of platelets in this balance. Twenty-five cancer patients and 18 healthy subjects were included. Serum and plasma concentrations of VEGF, TSP-1 and PF4 were measured by ELISA. Our results showed that in healthy subjects the balance between the TSP-1 and VEGF concentrations in serum and in serum minus plasma was twice to three times as high as in cancer patients (p<0.05). The theoretical TSP-1 content per platelet was greater in healthy subjects than in patients (94 vs. 53.6 ng/mL, p<0.05), and platelet activation (determined indirectly as the plasma concentration of PF4) was greater in cancer patients (129 vs. 48 IU/mL, p<0.01). Platelet activation correlated significantly with serum concentration of TSP-1 (r=0.470, p=0.018) and showed a tendency toward correlation with plasma concentration of TSP-1 (r=0.382, p=0.059). Our findings show that the circulating TSP-1/VEGF balance is diminished in cancer patients. Platelet activation may play an important role in this decrease and may ultimately lead to increased angiogenic activity in these patients. (Int J Biol Markers 2004; 19: 221-8).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.