Economic burden of empiric drug utilization in metastatic renal cell carcinoma emphasizes the need for early biomarkers of response.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e16072-e16072 ◽  
Author(s):  
Viola Chen ◽  
Cynthia Gong ◽  
Chiyuan A Zhang ◽  
Sandy Srinivas ◽  
Howard E Lee ◽  
...  

e16072 Background: While targeted therapies have significantly changed clinical practice for metastatic renal cell carcinoma (RCC), the economic burden of these drugs is increasing without concomitant advances in strategies for choosing among such agents. We present a model of cost savings using a hypothetical biomarker panel of early response to guide selection of targeted and immune therapies in metastatic RCC patients. Methods: Using the Stanford RCC Outcomes database, we identified patients diagnosed with metastatic RCC who received any of the following: sunitinib, pazopanib, axitinib, sorafenib, cabozantinib, nivolumab, lenvatinib & everolimus, temsirolimus from 2003 through 2016 at Stanford Cancer Center. Primary outcomes included short-term and long-term costs of treatment according to standard-of-care imaging criteria. Drug costs were inferred from the 2017 Veterans Affairs Federal Supply Schedule pricing in USD. A hypothetical biomarker cost was set at $4,620—the current market price of an actively employed diagnostic test in breast cancer, OncotypeDX. These parameters were combined in a Markov model to simulate patient treatment courses and to assess the impact of an early response biomarker on drug expenditures. Results: 370 patients received a range of one to six lines of successive therapy. 170 (45.9%) were long-term patients with cumulative drugs costs totaling $31 million, or on average $185,362 per patient, and $104,521 per individual line of therapy received. 200 (54%) were short-term patients who received less than 3 months of targeted therapy. The costs of such potentially ineffective treatment totaled $4.1 million, or $15,455 per patient per individual line of therapy received. Application of an early biomarker panel at the outset would result in a potential cost savings of up to $6,215 per patient. Conclusions: Bothmetastatic RCC patients and payers suffer high costs from ineffective therapy. Our findings suggest an economic benefit for developing biomarker panels to predict early therapeutic response. Such biomarkers can result in immediate cost savings, and possibly improved quality-of-life for those liberated from unnecessary drug toxicity.

2011 ◽  
Vol 29 (7_suppl) ◽  
pp. 335-335
Author(s):  
N. Shinohara ◽  
S. Maruyama ◽  
T. Abe ◽  
A. Sazawa ◽  
K. Nonomura ◽  
...  

335 Background: Based on the clinical data in Japanese renal cell carcinoma (RCC) patients who underwent cytokine therapy (Naito et al, Eur Urol 2010), the overall survival (OS) of these patients has been considered to be better than that of Caucasian patients. We identified long-term survivors among a cohort of 473 metastatic RCC patients, and explored clinical predictors of OS in these patients. Methods: Between 1995 and 2005, 473 patients with metastatic RCC were the subjects of this retrospective analysis. Three hundred sixty-one (76%) patients received IFN-α and no patient did molecular-targeted drugs. The patients with survival times of greater than 5 years after the development of metastases were identified as long-term survivors. Multiple logistic regression analysis was performed to evaluate the impact of clinical variables potentially influencing OS. Results: Median OS for all patients was 22.3 months (95%CI 18.7-27.6), the estimated 5-year survival rate was 27.4% (95% CI 22.9-31.9). Sixty-eight patients (14.4%) among 473 patients were identified as long-term survivors. Twenty-six (38%) had metastases at diagnosis of kidney cancer, 3 (4%) and 11 (16%) had liver mets and bone mets, respectively. According to MSKCC risk classification, 19 (28%), 28 (41%), and 6 (9%) were classified as favorable, intermediate, and poor risk, respectively. All patients had undergone prior nephrectomy, and 40 (59%) underwent metastatectomy. Multiple logistic regression analysis from all patients identified metastatectomy (HR 5.0; 95%CI 2.7-9.5) and MSKCC risk group (HR 3.7; 95%CI 1.5-9.1) as adverse prognostic factors for long-term OS. Conclusions: Selected patients with metastatic RCC who can undergo metastatectomy have a good opportunity for long-term survival, especially those with favorable or intermediate risk classified by MSKCC risk classification. No significant financial relationships to disclose.


2006 ◽  
Vol 175 (4S) ◽  
pp. 355-355
Author(s):  
Manuel Eisenberg ◽  
John S. Lam ◽  
Rakhee H. Goel ◽  
Allan J. Pantuck ◽  
Robert A. Figlin ◽  
...  

2021 ◽  
Vol 69 (4) ◽  
pp. 888-892
Author(s):  
Joseph I Clark ◽  
Brendan Curti ◽  
Elizabeth J Davis ◽  
Howard Kaufman ◽  
Asim Amin ◽  
...  

High-dose interleukin-2 (HD IL-2) was approved in the 1990s after demonstrating durable complete responses (CRs) in some patients with metastatic melanoma (mM) and metastatic renal cell carcinoma (mRCC). Patients who achieve this level of disease control have also demonstrated improved survival compared with patients who progress, but limited data are available describing the long-term course. The aim of this study was to better characterize long-term survival following successful HD IL-2 treatment in patients with no subsequent systemic therapy. Eleven HD IL-2 treatment centers identified patients with survival ≥5 years after HD IL-2, with no subsequent systemic therapy. Survival was evaluated from the date of IL-2 treatment to June 2017. Treatment courses consisted of 2 1-week cycles of HD IL-2. Patients were treated with HD IL-2 alone, or HD IL-2 followed by local therapy to achieve maximal response. 100 patients are reported: 54 patients with mM and 46 patients with mRCC. Progression-free survival (PFS) after HD IL-2 ranges from 5+ years to 30+ years, with a median follow-up of 10+ years. 27 mRCC and 32 mM are alive ≥10 years after IL-2. Thus, a small subset of patients with mM and mRCC achieve long-term PFS (≥5 years) after treatment with HD IL-2 as their only systemic therapy. The ability of HD IL-2 therapy to induce prolonged PFS should be a major consideration in studies of new immunotherapy combinations for mM and mRCC.


2021 ◽  
pp. 1051-1058
Author(s):  
Lisa B.E. Shields ◽  
Mohammad S. Alsorogi ◽  
Nataliya Mar ◽  
Arash Rezazadeh Kalebasty

While immunotherapy with nivolumab is promising for patients with renal cell carcinoma (RCC), overactivation of the immune system can lead to serious side effects. Immune-related meningoencephalitis without a viral or microbial etiology is a rare complication that may occur in patients treated with checkpoint inhibitors (CPI). Herein, we report a 66-year-old man who underwent a partial nephrectomy which revealed a papillary RCC with clear cell component. Three years later, an abdomen and pelvic CT revealed metastatic lesions in the left psoas muscle and in the left 12th rib. The patient was treated with pazopanib which was discontinued after 2 weeks due to significant hepatic and renal toxicity. He subsequently started sunitinib. Two months later, a chest, abdomen, and pelvic CT demonstrated progressive metastatic RCC in the retroperitoneal mass of the left psoas muscle and paraspinal musculature as well as a left renal mass. The patient was treated with 7 cycles of the CPI nivolumab. He was subsequently hospitalized for 3 weeks after experiencing bilateral lower extremity weakness, lethargy, several falls, hyperthermia, confusion, and gait abnormalities. A CSF analysis demonstrated a lymphocyte pleocytosis with elevated protein and no bacterial or viral growth. The patient was treated with high-dose steroids after which his symptoms resolved. Chest, abdomen, and pelvic CT scans over the next 3 years revealed no evidence of metastatic disease, reflecting a progression-free survival of 40 months. We highlight the unique case of a patient with metastatic RCC who experienced immune-related meningoencephalitis following immunotherapy with nivolumab. Medical oncologists should be alert to the potential development of immune-related encephalitis in patients treated with nivolumab and should promptly diagnose and treat this concerning condition. The excellent oncologic outcome of this case emphasizes the need for continued aggressive measures for management of CNS toxicity resulting from CPI therapy.


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