European journal of cancer : official journal for European Organization for Research and Treatment of Cancer (EORTC) [and] European Association for Cancer Research (EACR)
-
Review
A systematic review of cost-effectiveness of monoclonal antibodies for metastatic colorectal cancer.
Metastatic colorectal cancer (mCRC) imposes a substantial health burden on patients and society. In recent years, advances in the treatment of mCRC have mainly resulted from the introduction of monoclonal antibodies (MoAbs). However, the application of these MoAbs considerably increases treatment costs. The objective of this article is to review and assess the economic evidence of MoAB treatment in mCRC. A systematic literature review was conducted and cost-effectiveness (CE) as well as cost-utility-studies were identified. For this, Medline, Embase, SciSearch, Cochrane, and nine other databases were searched from 2000 through February 2013 for full-text publications. The quality of the studies was assessed via a validated assessment tool (Quality of Health Economic Studies (QHES)). A total of 843 publications were screened. Of those, 15 studies involving the MoAbs bevacizumab, cetuximab and panitumumab met all inclusion criteria. Four studies analysed the CE of first-line treatment with bevacizumab and nine the CE of cetuximab in subsequent treatment lines. Two studies dealt with the CE of panitumumab. The analysis of sequential regimes and the direct comparison of two MoABs were analysed by only one study each. The quality of the included studies was high with the exception of one study. ⋯ The treatment with bevacizumab, cetuximab and panitumumab is mainly considered to be not cost-effective in patients with mCRC. However, testing for Kirsten ras oncogene (KRAS) mutation prior to the treatment with cetuximab or panitumumab is found to be clearly cost-effective compared to no testing. Future research should focus on the CE of first-line treatment with cetuximab or panitumumab and studies on upcoming agents like regorafenib and aflibercept.
-
Multicenter Study
Variation in detection of ductal carcinoma in situ during screening mammography: a survey within the International Cancer Screening Network.
There is concern about detection of ductal carcinoma in situ (DCIS) in screening mammography. DCIS accounts for a substantial proportion of screen-detected lesions but its effect on breast cancer mortality is debated. The International Cancer Screening Network conducted a comparative analysis to determine variation in DCIS detection. ⋯ Considerable international variation was found in DCIS detection. This variation could not be fully explained by variation in incidence nor in breast cancer detection rates. It suggests the potential for wide discrepancies in management of DCIS resulting in overtreatment of indolent DCIS or undertreatment of potentially curable disease. Comprehensive cancer registration is needed to monitor DCIS detection. Efforts to understand discrepancies and standardise management may improve care.
-
Multicenter Study
Upstream mitogen-activated protein kinase (MAPK) pathway inhibition: MEK inhibitor followed by a BRAF inhibitor in advanced melanoma patients.
BRAF-mutant melanoma can be successfully treated by BRAF kinase inhibitors (BRAFi) and MEK kinase inhibitors (MEKi). However, the administration of BRAFi followed by MEKi did not generate promising response rate (RR). The purpose of this investigation was to evaluate the time to progression (TTP) with a mitogen-activated protein kinase (MAPK) pathway upstream inhibition strategy in BRAF mutated melanoma patients. ⋯ The total treatment duration of the MAPK inhibition when a MEKi is administered first is similar compared to the reversed sequence, but TTP shifts in favour to the MEKi. This approach is feasible with reasonable tolerability. This clinical investigation encourages further studies in prospective clinical trials to define the optimal treatment schedule for the MAPK pathway inhibition and should be accompanied by molecular monitoring using repeated biopsies.