Allison Perrin
Analytica
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Publication
Featured researches published by Allison Perrin.
Journal of Medical Economics | 2012
Roman Casciano; Maruit Chulikavit; Allison Perrin; Zhimei Liu; Xufang Wang; Louis P. Garrison
Abstract Background: Everolimus (Afinitor) and sunitinib (Sutent) were recently approved to treat patients with advanced, progressive pancreatic neuroendocrine tumors (pNETs). (Afinitor is a registered trademark of Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA; Sutent is a registered trademark of Pfizer Inc., New York, NY, USA.) This analysis examined the projected cost-effectiveness of everolimus vs sunitinib in this setting from a US payer perspective. Methods: A semi-Markov model was developed to simulate a cohort of patients with advanced, progressive pNET and to estimate the cost per life-year gained (LYG) and per quality-adjusted life-year (QALY) gained when treating with everolimus vs sunitinib. Efficacy data were based on a weight-adjusted indirect comparison of the agents using phase 3 trial data. Model health states included: stable disease with no adverse events, stable disease with adverse events, disease progression, and death. Therapy costs were based on wholesale acquisition cost. Other costs such as physician visits, tests, hospitalizations, and adverse event costs were obtained from literature and/or primary research. Utility inputs were based on primary research. Sensitivity analyses were conducted to test the model’s robustness. Results: In the base-case analysis, everolimus was associated with an incremental 0.448 LYG (0.304 QALYs) at an incremental cost of
Journal of Medical Economics | 2015
Allison Perrin; Steven Sherman; Sumanta K. Pal; Andrew Chua; Magdaliz Gorritz; Zhimei Liu; Xufang Wang; Kenneth W. Culver; Roman Casciano; Louis P. Garrison
12,673, resulting in an incremental cost-effectiveness ratio (ICER) of
Value in Health | 2014
David Chandiwana; Allison Perrin; S. Sherman
28,281/LYG (
Journal of Clinical Oncology | 2012
Roman Casciano; Maruit Chulikavit; Allison Perrin; Zhimei Liu; Xufang Wang; Joseph B. Babigumira; Louis P. Garrison
41,702/QALY gained). The ICER fell within the cost per QALY range for many widely used oncology drugs. Sensitivity analyses demonstrated that, overall, there is a trend that everolimus is cost-effective compared to sunitinib in this setting. Limitations: Results of the indirect analysis were not statistically significant (p > 0.05). Assumptions that treatment patterns are the same across therapies may not represent real-world practice. Conclusions: While the analysis is limited by its reliance on an indirect comparison of two phase 3 studies, everolimus is expected to be cost-effective relative to sunitinib in advanced, progressive pNET.
Current Oncology | 2018
Andrew Chua; Allison Perrin; J.F. Ricci; Maureen P. Neary; M. Thabane
Abstract Objective: Everolimus and axitinib are approved in the US to treat patients with advanced renal cell carcinoma (RCC) after failure on sunitinib or sorafenib, and one prior systemic therapy (e.g., sunitinib), respectively. Two indirect comparisons performed to evaluate progression-free survival in patients treated with everolimus vs axitinib suggested similar efficacy between the two treatments. Therefore, this analysis compares the lifetime costs of these two therapies among sunitinib-refractory advanced RCC patients from a US payer perspective. Research design and methods: A Markov model was developed to simulate a cohort of sunitinib-refractory advanced RCC patients and estimate the cost of treating patients with everolimus vs axitinib. The following health states were included: stable disease without adverse events (AEs), stable disease with AEs, disease progression (PD), and death. The model included the following resources: active treatments, post-progression treatments, adverse events, physician and nurse visits, scans and tests, and palliative care. Resource utilization inputs were derived from a US claims database analysis. Additionally, a 3% annual discount rate was applied to costs, and the robustness of the model results was tested by conducting sensitivity analyses, including those on dosing scheme and post-progression treatment costs. Results: Base case results demonstrated that patients treated with everolimus cost an average of
Medicina Clinica | 2015
M. Fernanda López; María Eva Mingot; David Valcárcel; Vicente Vicente García; Allison Perrin; Ignasi Campos Tapias
12,985 (11%) less over their lifetimes than patients treated with axitinib. The primary difference in costs was related to active treatment, which was largely driven by axitinib’s higher dose intensity. Results remained consistent across sensitivity analyses for AE and PD treatment costs, as well as dose intensity and discount rates. Conclusion: The results suggest that everolimus likely leads to lower lifetime costs than axitinib for sunitinib-refractory advanced RCC patients in the US.
Medicina Clinica | 2015
M. Fernanda López; María Eva Mingot; David Valcárcel; Vicente Vicente García; Allison Perrin; Ignasi Campos Tapias
Objectives: Metastatic melanoma has a poor prognosis with 10 year survival being < 5%. Standard therapy is the effective but costly Ipilimumab. An emerging 1st line treatment is Tumor Infiltrating Lymphocytes (TIL), with response rates > 50% and expected survival rates of 25%-42% versus 45% (1yr) and 23,5% (2yr) for Ipilimumab. TIL is highly personalized, however complex and requests substantial upfront investments from the hospital in expensive lab-equipment, staff expertise and training, as well as extremely tight hospital logistics. Therefore, an early health economic modelling study, supporting a Coverage with Evidence Development (CED) program, was performed. MethOds: We used a Markov decision model to estimate the expected costs and outcomes (quality adjusted life years; QALYs) for TIL versus Ipilimumab in metastatic melanoma patients from a societal perspective over a life long time horizon. Three mutually exclusive health states (stable disease, progressive disease and death) were modelled, divided in first and second line treatment. Technical failures and non-compliance were incorporated to reflect the dynamic nature of the technology. To inform further research prioritization, Value of Information (VOI) analysis was performed. Results: TIL is expected to yield more QALYs compared to Ipilimumab (0.99 vs 0.52 respectively) at lower total costs (€ 83,588 vs € 87,834 respectively). Based on current information TIL has a probability of 88% for being cost effective at a cost/QALY threshold of € 30,000. Expected Value of Perfect Information (EVPI) amounted to € 1,2 million. Partial EVPI (EVPPI) was highest for survival data (€ 550,000). Expected Value of Sample information was estimated € 355,000 for an optimal sample size of n= 50. cOnclusiOns: TIL is expected to improve QALYs compared to Ipilimumab at lower incremental cost and has the highest probability of being cost-effective. To reduce decision uncertainty, a future clinical trial to investigate survival seems most valuable, and should preferably be undertaken as part of a CED program.
Value in Health | 2016
Jie Meng; Roman Casciano; Lee Stern; Allison Perrin; E Lew
226 Background: Everolimus and sunitinib were recently approved to treat patients with advanced, progressive pancreatic neuroendocrine tumors (pNETs). This analysis examines the projected cost-effectiveness of everolimus versus sunitinib in this setting from a US payer perspective. METHODS A lifetime Markov model was developed to simulate a cohort of advanced, progressive pNET patients and to estimate the cost per incremental life-years gained (LYG) and quality-adjusted life years (QALYs) gained when treating with everolimus as compared to sunitinib. Absent head-to-head trials, efficacy data were based on a weight-adjusted indirect comparison of the two agents using the respective phase 3 trial data. Disease or health states considered in the model included: stable disease without adverse events, stable disease with adverse events, disease progression, and death. Costs of anti-tumor therapies, symptomatic care drugs, and post-progression therapy were based on wholesale acquisition cost. Other costs including physician visits, tests, infusions, hospitalizations, adverse event costs, and end-of-life care costs were obtained from literature and/or standard sources such as the Healthcare Cost and Utilization Project and Medicare reimbursement rates. Utility inputs were based on a UK time trade-off study. Sensitivity analyses were conducted to test the models robustness. RESULTS In the base case analysis, the estimated gain of everolimus over sunitinib was 0.448 LYs (0.304 QALYs) at an incremental cost of
Value in Health | 2016
Allison Perrin; Andrew Chua; J Ricci; Maureen P. Neary; M Thabane
12,673, resulting in an incremental cost-effectiveness ratio (ICER) of
Archive | 2015
Allison Perrin; Steven Sherman; Sumanta K. Pal; Andrew Chua; Magdaliz Gorritz
28,281/LYG (