Bevacizumab Continuation Versus Treatment Holidays After First-Line Chemotherapy With Bevacizumab in Patients With Metastatic Colorectal Cancer: A Health Economic Analysis of a Randomized Phase 3 Trial (SAKK 41/06)
Matter-Walstra K.,University of Basel |
Schwenkglenks M.,University of Basel |
Betticher D.,Hopital Fribourgeois |
von Moos R.,Kantonsspital Graubunden |
And 3 more authors.
Clinical Colorectal Cancer | Year: 2016
Background: Bevacizumab (BEV)-containing therapies are costly. We performed a health economic analysis of a randomized phase 3 study (SAKK 41/06) that compared BEV continuation as a single agent (BEV) with treatment holidays (no BEV) after completing 4 to 6 cycles of first-line chemotherapy plus BEV in metastatic colorectal cancer patients. Patients and Methods: Costs for first-line chemotherapy with BEV, BEV continuation therapy, hospitalizations (length of stay), control visits, diagnostic tests, and second-line and later rounds of chemotherapy were collected. Mean costs per patient per treatment arm and an incremental cost-effectiveness ratio were calculated. Probabilistic sensitivity analysis was performed to account for uncertainty in the input parameters. Results: The total incurred mean costs per patient were 126,631 Swiss francs (CHF) [95% confidence interval (CI), 116,521-136,740] for BEV versus CHF100,146 (95% CI, 92,811-107,481) for no BEV. The incremental cost effectiveness ratio was CHF108,991 per life-year gained (LYG; 95% CI from probabilistic sensitivity analysis, 62,890-248,515). Compared to a willingness-to-pay threshold of CHF100,000/LYG, there was 42% probability that BEV continuation was cost effective, which decreased to 20% at a threshold of CHF75,000/LYG. Economic equality was reached in only 0.07% of cases. Conclusion: The clinical conclusion that BEV continuation as a single agent after completion of first-line chemotherapy is of low therapeutic value is supported by this health economic analysis. Costs increase without significant clinical benefit in this setting. © 2016 Elsevier Inc.
Senn L.,University of Lausanne |
Zanetti G.,University of Lausanne |
Bally F.,Institute Central des Hopitaux Valaisans |
Chuard C.,Hopital Fribourgeois |
And 5 more authors.
Journal of Hospital Infection | Year: 2011
According to molecular epidemiology theory, two isolates belong to the same chain of transmission if they are similar according to a highly discriminatory molecular typing method. This has been demonstrated in outbreaks, but is rarely studied in endemic situations. Person-to-person transmission cannot be established when isolates of meticillin-resistant Staphylococcus aureus (MRSA) belong to endemically predominant genotypes. By contrast, isolates of infrequent genotypes might be more suitable for epidemiological tracking. The objective of the present study was to determine, in newly identified patients harbouring non-predominant MRSA genotypes, whether putative epidemiological links inferred from molecular typing could replace classical epidemiology in the context of a regional surveillance programme. MRSA genotypes were defined using double-locus sequence typing (DLST) combining clfB and spa genes. A total of 1,268 non-repetitive MRSA isolates recovered between 2005 and 2006 in Western Switzerland were typed: 897 isolates (71%) belonged to four predominant genotypes, 231 (18%) to 55 non-predominant genotypes, and 140 (11%) were unique. Obvious epidemiological links were found in only 106/231 (46%) patients carrying isolates with non-predominant genotypes suggesting that molecular surveillance identified twice as many clusters as those that may have been suspected with classical epidemiological links. However, not all of these molecular clusters represented person-to-person transmission. Thus, molecular typing cannot replace classical epidemiology but is complementary. A prospective surveillance of MRSA genotypes could help to target epidemiological tracking in order to recognise new risk factors in hospital and community settings, or emergence of new epidemic clones. © 2011 The Healthcare Infection Society.
Langenskiold E.,University of Lausanne |
Bonetti A.,Private Practice |
Fitting J.W.,University of Lausanne |
Heinzer R.,University of Lausanne |
And 4 more authors.
Respiration | Year: 2012
Shrinking lung syndrome (SLS) is an uncommon feature of systemic lupus erythematosus (SLE) characterized by dyspnea, pleuritic chest pain, diaphragmatic elevation, restrictive ventilatory defect and reduced respiratory muscle strength as measured by volitional tests. We report the case of a 28-year-old woman with overlapping features of SLE and Sjgren syndrome who developed severe SLS while receiving corticosteroids and azathioprine for severe polyarthritis. She was treated with a combination of rituximab and cyclophosphamide, which led to a dramatic improvement in her clinical condition and respiratory function tests. The increase in vital capacity was one of the highest among 35 published cases of SLS. Thus, restoring a near-normal lung function is an achievable goal in SLS, and the use of rituximab, with or without concomitant cyclophosphamide, certainly deserves further study in this setting. Copyright © 2012 S. Karger AG, Basel.
Koeberle D.,Kantonsspital St. Gallen |
Betticher D.C.,Hopital Fribourgeois |
von Moos R.,Kantonsspital Chur |
Dietrich D.,Coordinating Center |
And 16 more authors.
Annals of Oncology | Year: 2015
Background: Chemotherapy plus bevacizumab is a standard option for first-line treatment in metastatic colorectal cancer (mCRC) patients. We assessed whether no continuation is non-inferior to continuation of bevacizumab after completing first-line chemotherapy. Patients and methods: In an open-label, phase III multicentre trial, patients with mCRC without disease progression after 4-6 months of standard first-line chemotherapy plus bevacizumab were randomly assigned to continuing bevacizumab at a standard dose or no treatment. CT scans were done every 6 weeks until disease progression. The primary end point was time to progression (TTP). A non-inferiority limit for hazard ratio (HR) of 0.727 was chosen to detect a difference in TTP of 6 weeks or less, with a one-sided significance level of 10% and a statistical power of 85%. Results: The intention-to-treat population comprised 262 patients: median follow-up was 36.7 months. The median TTP was 4.1 [95% confidence interval (CI) 3.1-5.4] months for bevacizumab continuation versus 2.9 (95% CI 2.8-3.8) months for no continuation; HR 0.74 (95% CI 0.58-0.96). Non-inferiority could not be demonstrated. The median overall survival was 25.4 months for bevacizumab continuation versus 23.8 months (HR 0.83; 95% CI 0.63-1.1; P = 0.2) for no continuation. Severe adverse events were uncommon in the bevacizumab continuation arm. Costs for bevacizumab continuation were estimated to be ~30 000 USD per patient. Conclusions: Non-inferiority could not be demonstrated for treatment holidays versus continuing bevacizumab monotheray, after 4-6 months of standard first-line chemotherapy plus bevacizumab. Based on no impact on overall survival and increased treatment costs, bevacizumab as a single agent is of no meaningful therapeutic value. More efficient treatment approaches are needed to maintain control of stabilized disease following induction therapy. Clinical trial registration:: ClinicalTrials.gov, number NCT00544700. © The Author 2015.
de Joliniere J.B.,Hopital Fribourgeois |
Ali N.B.,Hopital Fribourgeois |
Fadhlaoui A.,Hopital Fribourgeois |
Dubuisson J.B.,Hopital Fribourgeois |
And 5 more authors.
Frontiers in Oncology | Year: 2014
Objective: In this article, we present two case reports. The first case was a malignant germ cell tumor of the right ovary in a 23-year old woman and the second case was a bilateral undifferentiated granulosa cell tumor in a 71-year old woman. The aim of these reports is to illustrate the interest of the immunohistochemical analysis to define the correct diagnosis, to better classify these ovarian tumors and improve their management. Methods: In this study, we report two cases. The first case concerns a 23-year old woman (A) with a mixed germ cell tumor of the right ovary [dysgerminoma (75%), yolk sac tumor (20%), and a mature teratoma (5%)], and the second case concerns a 71-year old woman (B) with a bilateral non-differentiated and necrotic granulosa cell tumor of both ovaries. The staging system was used according to both the classifications: International Federation of Gynaecology and Obstetrics 1987 for ovarian cancer and TNM code 2009. Results: The immunostaining establishes the malignancy and the immunochemistry contributes to confirm effectively the right diagnosis (Tables 2 and 3). Conclusion: An immunohistochemical analysis is mandatory for the choice of chemotherapy to obtain a better response of the disease and improve the survival prognosis. The efficiency of the chemotherapy authorizes a conservative surgery including a unilateral salpingo-oophorectomy preserving fertility (A). Concerning the non-dysgerminoma tumor (B), and after a surgical staging and debulking, chemotherapy was recommended. The type of tumor and its histological feature conditioned the choice of treatment. The benefit of the immunohistological analysis in this case allowed the right adjuvant treatment. © 2014 Bouquet de Jolinière, Ben Ali, Fadhlaoui, Dubuisson, Guillou, Sutter, Betticher, Hoogewoud and Feki.