Richard Barron
Amgen
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Publication
Featured researches published by Richard Barron.
Current Medical Research and Opinion | 2009
Gary H. Lyman; Anjana Lalla; Richard Barron; Robert W. Dubois
ABSTRACT Objectives: Prophylaxis with granulocyte-colony stimulating factor (G-CSF) reduces the risk of febrile neutropenia (FN) in patients receiving myelosuppressive chemotherapy. Randomized clinical trials have shown that pegfilgrastim, a 2nd-generation G-CSF, is at least as effective as the 1st-generation G-CSF filgrastim. In the meta-analysis of trials pegfilgrastim performed better than filgrastim with respect to FN risk. The incremental cost-effectiveness of primary prophylaxis (starting in cycle 1 and continuing in subsequent cycles of chemotherapy) with pegfilgrastim versus filgrastim used for 6 days (as is often used in clinical practice) was estimated in patients with aggressive non-Hodgkins lymphoma (NHL) receiving myelosuppressive chemotherapy in the United States. Methods: A decision-analytic model was constructed from a health insurers perspective with a life-time study horizon. The model considered direct medical costs and outcomes related to reduced FN and potential survival benefits due to reduced FN-related mortality. Inputs for the model were obtained from the medical literature. Sensitivity analyses were conducted across plausible ranges in parameter values. Results: The incremental cost-effectiveness (ICER) of pegfilgrastim versus 6-day filgrastim primary prophylaxis was
Journal of Medical Economics | 2013
Brian Dulisse; Xiaoyan Li; Julie Gayle; Richard Barron; Frank R. Ernst; Kenneth J. Rothman; Jason Legg; James A. Kaye
2167/FN episode avoided. Adding survival benefit from avoiding FN mortality yielded an ICER of
Clinical Therapeutics | 2009
Gary H. Lyman; Anjana Lalla; Richard Barron; Robert W. Dubois
5532/LY gained or
Cancer | 2010
Derek Weycker; Richard Barron
6190/QALY gained. When the potential benefit of optimized chemotherapy was included, the ICER was
Journal of Oncology Pharmacy Practice | 2014
Derek Weycker; Richard Barron; Alex Kartashov; Jason Legg; Gary H. Lyman
1494/LY gained or
Critical Reviews in Oncology Hematology | 2012
Gary H. Lyman; Richard Barron; Jaime L. Natoli; Ross Miller
1677/QALY gained. The most influential factors included cost of pegfilgrastim, relative risk of FN between pegfilgrastim and filgrastim, FN case-fatality rate, cost of filgrastim and baseline FN risk. Conclusions: Pegfilgrastim is cost-effective in primary prophylaxis of FN compared to 6 days per cycle of filgrastim, in patients with NHL receiving myelosuppressive chemotherapy (e.g., cyclophosphamide + doxorubicin + vincristine + prednisolone [CHOP-21]) chemotherapy. Study limitations included lack of direct evidence linking G-CSF use with a reduction in FN-related mortality and limited data that show a relationship between relative dose intensity (RDI) and cancer-specific patient survival.
Journal of Medical Economics | 2013
Henry J Henk; Laura Becker; Hiangkiat Tan; J. Yu; A. Kavati; Arash Naeim; R. Deeter; Richard Barron
Abstract Objective: The objective of this study was to provide up-to-date estimates of the clinical and economic burden that occurs during inpatient treatment of cancer patients with febrile neutropenia (FN). Methods: A retrospective cohort study was conducted using 2007–2010 hospital discharge data from the Premier database. The study population included adult patients with discharge diagnoses of neutropenia (ICD-9 code 288.0x) with fever or infection and receipt of intravenous antibiotics and female breast cancer, lung cancer, colorectal cancer, ovarian cancer, non-Hodgkin lymphoma (NHL), or Hodgkin lymphoma. Primary study outcomes were inpatient mortality, hospital length of stay (LOS), and total hospitalization cost for each patient’s first FN-related hospitalization. Logistic regressions (for mortality) and multivariate linear regressions (for LOS and cost) were conducted to assess the effect of comorbidities and infection types on study outcomes, adjusting for other patient and hospital characteristics. Results: Among 16,273 cancer patients hospitalized with FN, the inpatient case fatality rate was 10.6%, mean LOS was 8.6 days, and mean total hospitalization cost was
Journal of Medical Economics | 2014
Gregory Hill; Richard Barron; Kelly Fust; Michelle Skornicki; Douglas C. A. Taylor; Milton C. Weinstein; Gary H. Lyman
18,880. Lung cancer patients had the highest inpatient case fatality rate (15.7%), and NHL patients had the longest LOS (10.1 days) and the highest cost (
Journal of Oncology Practice | 2012
Chris M. Kozma; Michael Dickson; Victoria M. Chia; Jason Legg; Richard Barron
24,218). Multivariate analyses showed that most comorbidities were associated with a greater risk of mortality, longer LOS, and higher cost. Septicemia/bacteremia and pneumonia were associated with a greater risk of mortality, and most types of infection were associated with a longer LOS and higher cost. Limitations: The total burden of FN may be under-estimated in this study because outpatient treatment and any patient deaths or costs that occurred outside of Premier hospitals could not be captured. Conclusions: FN-related hospitalizations among cancer patients are costly and accompanied by considerable mortality risk. Substantial differences in the clinical and economic burden of FN exist depending on cancer types, comorbidities, and infection types.
Gynecologic Oncology | 2014
Kelly Fust; Xiaoyan Li; Michael Maschio; Richard Barron; Milton C. Weinstein; Anju Parthan; Marjan Walli-Attaei; David Chandler; Gary H. Lyman
BACKGROUND Prophylaxis with granulocyte colony-stimulating factor reduces the risk for febrile neutropenia (FN) in patients receiving myelosuppressive chemotherapy. OBJECTIVE We estimated the incremental cost-effectiveness of primary prophylaxis (starting in cycle 1 of chemotherapy) with pegfilgrastim versus filgrastim in women with early-stage breast cancer receiving myelosuppressive chemotherapy in the United States. METHODS A decision-analytic model was constructed from a health payers perspective with a lifetime study horizon. The model considered direct medical costs and outcomes related to reduced FN and potential survival benefits due to reduced FN-related mortality and on-time receipt of full-dose chemotherapy. Sensitivity analyses were conducted. RESULTS Pegfilgrastim was cost-saving and more effective (ie, dominant strategy) than 11-day filgrastim. The incremental cost-effectiveness ratio (ICER) for pegfilgrastim versus 6-day filgrastim was