RESUMO
PURPOSE: The analysis of epidermal growth factor receptor (EGFR) mutations in many patients with advanced non-small-cell lung cancer (aNSCLC) has provided the opportunity for successful treatment with specific, targeted EGFR tyrosine kinase inhibitors. However, this therapeutic decision may be challenging when insufficient tumor tissue is available for EGFR mutation testing. Therefore, blood surrogate samples for EGFR mutation analysis have been suggested. METHODS: Data were collected from the Spanish cohort of patients in the large, non-interventional, diagnostic ASSESS study (NCT01785888) evaluating the utility of circulating free tumor-derived DNA from plasma for EGFR mutation testing. The incidence of EGFR mutation in Spain and the level of concordance between matched tissue/cytology and plasma samples were evaluated. RESULTS: In a cohort of 154 eligible patients, EGFR mutations were identified in 15.1 and 11.0% of tumor and plasma samples, respectively. The most commonly used EGFR mutation testing method for the tumor tissue samples was the QIAGEN Therascreen® EGFR RGQ PCR kit (52.1%). Fragment Length Analysis + PNA LNA Clamp was used for the plasma samples. The concordance rate for EGFR mutation status between the tissue/cytology and plasma samples was 88.8%; the sensitivity was 45.5%, and the specificity was 96.7%. CONCLUSIONS: The high concordance between the different DNA sources for EGFR mutation testing supports the use of plasma samples when tumor tissue is unavailable.
Assuntos
Carcinoma Pulmonar de Células não Pequenas/genética , DNA Tumoral Circulante/análise , Análise Mutacional de DNA/métodos , Neoplasias Pulmonares/genética , Adulto , Idoso , DNA Tumoral Circulante/genética , Receptores ErbB/sangue , Receptores ErbB/genética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mutação , Reação em Cadeia da Polimerase/métodos , Sensibilidade e Especificidade , EspanhaRESUMO
PURPOSE: To describe healthcare professional (HCP) and patient time and related costs associated with trastuzumab intravenous infusion (IV) and trastuzumab subcutaneous (SC) formulations in patients with HER2-positive early breast cancer. METHODS: This prospective, observational time, and motion study in three Spanish centers was run as a substudy of the PrefHer trial. We recorded active HCP time for trastuzumab SC and IV-related tasks and calculated HCP time as the mean sum of task times over 154 administrations (80 IV, 74 SC). We calculated mean patient infusion chair time and treatment room time. Staff costs were calculated using fully loaded salary costs based on Spanish salaries ( 2012). RESULTS: The transition from trastuzumab IV to SC led to a 50% reduction in active HCP time [27.2 min (95% CI 21.8-32.6) vs. 13.2 min (95% CI 8.9-17.5) per cycle]. Time savings resulted from avoiding IV catheter installation and removal, line flushing, and drug reconstitution. SC administration led to a fivefold reduction (78-85%) in chair time and a fourfold reduction (59-81%) in patient treatment room time, resulting in 24 h free-up time in the total treatment course (18 cycles). Total estimated direct costs were 29,431.75 and 28,452.12 for IV and SC, respectively, a saving of 979.60 over a full treatment course. CONCLUSIONS: Trastuzumab SC provided substantial time savings for HCP and patients, and reduced staff costs vs. trastuzumab IV. Reducing the use of hospital facilities may result in further savings and improved quality of medical care.
Assuntos
Administração Intravenosa/economia , Antineoplásicos/economia , Neoplasias da Mama/economia , Custos e Análise de Custo , Injeções Subcutâneas/economia , Receptor ErbB-2/metabolismo , Trastuzumab/economia , Antineoplásicos/administração & dosagem , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/metabolismo , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Espanha , Trastuzumab/administração & dosagemRESUMO
INTRODUCTION: Sorafenib improves progression-free survival in advanced clear-cell renal-cell carcinoma patients progressing to first-line therapy, as has been shown in the placebo-controlled international TARGET trial. The aim of this study is to report the results of the patients included in the Spanish centres in this trial. PATIENTS AND METHODS: The records of the patients in the database of the TARGET trial have been reviewed. Data about progression-free survival, overall survival and toxicity have been collected in order to do this subpopulation analysis. RESULTS: A total of 15 patients have been included (sorafenib arm 7, placebo arm 8). A trend to an improved progression-free survival in the sorafenib arm has been observed period Toxicity in the sorafenib arm has been manageable. CONCLUSION: The analysis of these 15 patients has shown efficacy and toxicity results that follow the trend observed for the overall international population.