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1.
JTO Clin Res Rep ; 5(1): 100615, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38292413

RESUMEN

Introduction: Liquid biopsy is recommended to diagnose molecular resistance to targeted therapy in patients with lung cancer. Nevertheless, not all jurisdictions provide funding and patient access. We report patients' perceived value of liquid biopsy in targeted therapy resistance. Methods: Canadian patients participating in a national EGFR T790M liquid biopsy validation study completed structured interviews measuring perceived value and willingness-to-pay for plasma circulating tumor DNA testing as an alternative to tumor biopsy using open-ended and iterative bidding approaches. Results: A total of 60 patients with advanced lung cancer participated with a median age of 64 years (range: 31-87 y); 69% were Asian and 45% female. All had received prior EGFR tyrosine kinase inhibitor; 17% also received chemotherapy. All patients preferred to have plasma testing over repeat tumor biopsy. In the context of the Canadian publicly funded system, patients estimated that a median of 300 (interquartile range: 150-800) Canadian dollars was a reasonable price to pay for liquid biopsy. Patients were personally willing to pay a median 100 (interquartile range: 33-350) Canadian dollars. Conclusions: In a system that covers the cost of standard diagnostic tests, patients with lung cancer indicated high willingness-to-pay out-of-pocket for liquid biopsy in the setting of acquired targeted therapy resistance. Patients have high perceived value of plasma genotyping and prefer it to repeat tumor biopsy.

2.
Curr Oncol ; 30(11): 9836-9848, 2023 Nov 09.
Artículo en Inglés | MEDLINE | ID: mdl-37999134

RESUMEN

PURPOSE: Iron deficiency (ID) is a complication of gastrointestinal (GI) cancers that may manifest as iron deficiency anemia (IDA). Serum ferritin monitoring and oral iron supplementation have the limitations of being falsely elevated and poorly absorbed, respectively. This study aims to assess the discordance in surveillance, treatment practices, and awareness of ID/IDA in GI cancer patients by Canadian physicians treating these patients. METHODS: From February 2020 to September 2021, a 22-question electronic survey was sent to medical oncologists (MOs), surgical oncologists (SOs), and gastroenterologists (GEs). The survey collected information about four domains: physician demographics, surveillance practices, treatment practices, and awareness of ID/IDA in GI cancer patients and ASCO/ASH guidelines. RESULTS: A total of 108 (34 MOs, 19 SOs, and 55 GEs) of the 872 (12.4%) invited physicians completed the survey. Of these, 26.5% of MOs, 36.8% of SOs, and 70.9% of GEs measured baseline iron parameters, with few continuing surveillance throughout treatment. Ferritin was widely measured by MOs (88.9%), SOs (100%), and GEs (91.4%). Iron was supplemented if ID/IDA was identified pre-treatment by 66.7% of MOs, 85.7% of SOs, and 94.2% of GEs. Parenteral iron was prescribed by SOs (100%), while oral iron was prescribed by MOs (83.3%) and GEs (87.9%). Only 18.6% of physicians were aware of the ASCO/ASH guidelines regarding erythropoiesis-stimulating agents with parenteral iron for treating chemotherapy-induced anemia. CONCLUSION: Results illustrate variations in practice patterns for IDA management across the different physician specialties. Moreover, there appeared to be gaps in the knowledge and care surrounding evidence-based IDA management principles which may contribute to poor clinical outcomes.


Asunto(s)
Anemia Ferropénica , Neoplasias Gastrointestinales , Médicos , Humanos , Hierro/uso terapéutico , Canadá , Anemia Ferropénica/tratamiento farmacológico , Anemia Ferropénica/etiología , Ferritinas/uso terapéutico
3.
J Clin Oncol ; 41(15): 2673-2681, 2023 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-37196430

RESUMEN

PURPOSE: To evaluate whether treatment with single-agent docetaxel would result in longer survival than would best supportive care in patients with non-small-cell lung cancer who had previously been treated with platinum-based chemotherapy. Secondary end points included assessment of response (docetaxel arm only), toxicity, and quality of life.PATIENTS AND METHODS: Patients with performance statuses of 0 to 2 and stage IIIB/IV non-small-cell lung cancer with either measurable or evaluable lesions were eligible for entry onto the study if they had undergone one or more platinum-based chemotherapy regimens and if they had adequate hematology and biochemistry parameters. They were excluded if they had symptomatic brain metastases or if they had previously been treated with paclitaxel. Patients were stratified by performance status and best response to cisplatin chemotherapy and were then randomized to treatment with docetaxel 100 mg/m2 (49 patients) or 75 mg/m2 (55 patients) or best supportive care. Patients in both arms were assessed every 3 weeks. RESULTS: One hundred four patients (103 of whom were eligible for entry onto the study) were well balanced for prognostic factors. Of 84 patients with measurable lesions, six (7.1%) achieved partial responses (three patients at each dose level). Time to progression was longer for docetaxel patients than for best supportive care patients (10.6 v 6.7 weeks, respectively; P < .001), as was median survival (7.0 v 4.6 months; log-rank test, P = .047). The difference was more significant for docetaxel 75 mg/m2 patients, compared with corresponding best supportive care patients (7.5 v 4.6 months; log-rank test, P = .010; 1-year survival, 37% v 11%; χ2 test, P = .003). Febrile neutropenia occurred in 11 patients treated with docetaxel 100 mg/m2, three of whom died, and in one patient treated with docetaxel 75 mg/m2. Grade 3 or 4 nonhematologic toxicity, with the exception of diarrhea, occurred at a similar rate in both the docetaxel and best supportive care groups. CONCLUSION: Treatment with docetaxel is associated with significant prolongation of survival, and at a dose of 75 mg/m2, the benefits of docetaxel therapy outweigh the risks.

4.
Curr Oncol ; 29(10): 7072-7085, 2022 09 28.
Artículo en Inglés | MEDLINE | ID: mdl-36290832

RESUMEN

Biliary tract cancer (BTC) is a group of rare and aggressive malignancies with a dismal prognosis. There is currently a significant lack in effective treatment options for BTC, with gemcitabine-cisplatin remaining the first-line standard of care treatment for over a decade. A wave of investigational therapies, including new chemotherapy combinations, immunotherapy, and biomarker-driven targeted therapy have demonstrated promising results in BTC, and there is hope for many of these therapies to be incorporated into the Canadian treatment landscape in the near future. This review discusses the emerging therapies under investigation for BTC and provides a perspective on how they may fit into Canadian practice, with a focus on the barriers to treatment access.


Asunto(s)
Neoplasias de los Conductos Biliares , Neoplasias del Sistema Biliar , Humanos , Cisplatino/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Canadá , Neoplasias del Sistema Biliar/tratamiento farmacológico , Neoplasias de los Conductos Biliares/tratamiento farmacológico
5.
Curr Oncol ; 29(3): 1723-1743, 2022 03 07.
Artículo en Inglés | MEDLINE | ID: mdl-35323343

RESUMEN

(1) Background: The COVID-19 pandemic illuminated vulnerabilities in the Canadian health care system and exposed gaps and challenges across the cancer care continuum. Canada is experiencing significant disruptions to cancer-related services, and the impact these disruptions (delays/deferrals/cancellations) have on the health care system and patients are yet to be determined. Given the potential adverse ramifications, how can Canada's health care systems build resilience for future threats? (2) Methods: To answer this question, CCC facilitated a series of four thought-leadership roundtables, each representing the views of four different stakeholder groups: patients, physicians, health care system leaders, and researchers. (3) Results: Six themes of strength were identified to serve as a springboard for building resilience including, (1) advancing virtual care and digital health technologies to prevent future interruptions in cancer care delivery. (2) developing real-time data metrics, data sharing, and evidence-based decision-making. (3) enhancing public-private-non-profit partnerships to advance research and strengthen connections across the system. (4) advancing patient-centricity in cancer research to drive and encourage precision medicine approaches to care. (5) investing in training and hiring a robust supply of health care human resources. (6) implementing a national strategy and infrastructure to ensure inter-provincial collaborative data sharing (4). Conclusions: A resilient health care system that can respond to shocks and threats is not an emergency system; it is a robust everyday system that can respond to emergencies.


Asunto(s)
COVID-19 , Neoplasias Colorrectales , COVID-19/epidemiología , Canadá , Neoplasias Colorrectales/terapia , Humanos , Liderazgo , Pandemias
6.
Curr Oncol ; 28(3): 1988-2006, 2021 05 26.
Artículo en Inglés | MEDLINE | ID: mdl-34073199

RESUMEN

The annual Eastern Canadian Gastrointestinal Cancer Consensus Conference 2019 was held in Morell, Prince Edward Island, 19-21 September 2019. Experts in medical oncology, radiation oncology, and surgical oncology who are involved in the management of patients with gastrointestinal malignancies participated in presentations and discussion sessions for the purpose of developing the recommendations presented here. This consensus statement addresses multiple topics in the management of anal, colorectal, biliary tract, and gastric cancers, including: radiotherapy and systemic therapy for localized and advanced anal cancer; watch and wait strategy for the management of rectal cancer; role of testing for dihydropyrimidine dehydrogenase (DPD) deficiency prior to commencement of fluoropyrimidine therapy; radiotherapy and systemic therapy in the adjuvant and unresectable settings for biliary tract cancer; and radiotherapy and systemic therapy in the perioperative setting for early-stage gastric cancer.


Asunto(s)
Neoplasias Gastrointestinales , Neoplasias del Recto , Canadá , Consenso , Neoplasias Gastrointestinales/terapia , Humanos , Oncología Médica
7.
Clin Transl Med ; 11(4): e401, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33931971

RESUMEN

BACKGROUND: Therapeutic resistance is the main cause of death in metastatic colorectal cancer. To investigate genomic plasticity, most specifically of metastatic lesions, associated with response to first-line systemic therapy, we collected longitudinal liver metastatic samples and characterized the copy number aberration (CNA) landscape and its effect on the transcriptome. METHODS: Liver metastatic biopsies were collected prior to treatment (pre, n = 97) and when clinical imaging demonstrated therapeutic resistance (post, n = 43). CNAs were inferred from whole exome sequencing and were correlated with both the status of the lesion and overall patient progression-free survival (PFS). We used RNA sequencing data from the same sample set to validate aberrations as well as independent datasets to prioritize candidate genes. RESULTS: We identified a significantly increased frequency gain of a unique CN, in liver metastatic lesions after first-line treatment, on chr18p11.32 harboring 10 genes, including TYMS, which has not been reported in primary tumors (GISTIC method and test of equal proportions, FDR-adjusted p = 0.0023). CNA lesion profiles exhibiting different treatment responses were compared and we detected focal genomic divergences in post-treatment resistant lesions but not in responder lesions (two-tailed Fisher's Exact test, unadjusted p ≤ 0.005). The importance of examining metastatic lesions is highlighted by the fact that 15 out of 18 independently validated CNA regions found to be associated with PFS in this study were only identified in the metastatic lesions and not in the primary tumors. CONCLUSION: This investigation of genomic-phenotype associations in a large colorectal cancer liver metastases cohort identified novel molecular features associated with treatment response, supporting the clinical importance of collecting metastatic samples in a defined clinical setting.


Asunto(s)
Neoplasias Colorrectales/genética , Variaciones en el Número de Copia de ADN/genética , Transcriptoma/genética , Adulto , Anciano , Anciano de 80 o más Años , Antineoplásicos/uso terapéutico , Bevacizumab/uso terapéutico , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/patología , Resistencia a Antineoplásicos/genética , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Neoplasias Hepáticas/secundario , Masculino , Persona de Mediana Edad , Supervivencia sin Progresión , Secuenciación del Exoma
9.
Eur J Surg Oncol ; 46(6): 1131-1137, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32224071

RESUMEN

BACKGROUND: Locally recurrent rectal cancer (LRRC) is a complex problem requiring multidisciplinary consultation and specialized surgical care. Given the paucity of published longer-term survival data, skepticism persists regarding the benefit of major extirpative surgery. We investigated ultra-long-term (~15 years) outcomes following radical resection of LRRC and sought relevant clinicopathologic prognostic variables. METHODS: A cohort of 52 consecutive patients who underwent resection of LRRC at our institution between 1997 and 2005 were followed with serial exams and imaging up to the point of death, or 30/06/2019. RESULTS: Median follow-up time was 16.5 years (9.9-18.3) for patients who were alive at last follow-up; only one patient was lost to follow-up, at 9.9 years. For the entire cohort of 52 patients, disease-specific survival (DSS) at 5, 10, and 15 years following salvage surgery was 41%, 33%, and 31%, respectively. All patients who had distant metastatic disease at the time of LRRC resection (n = 6) subsequently died of cancer, at a median of 21 months (4-46). In those without distant metastases at time of salvage surgery (n = 46), DSS at 5, 10, and 15 years was 47%, 38%, and 35%, respectively, median 60 months. Negative resection margin (R0) was independently predictive of superior outcomes. In patients with M0 disease who had R0 resection (n = 37), DSS at 5, 10 and 15 years was 58%, 47%, and 44%, respectively, median 73 months. No patient developed re-recurrence after 5.5 years. CONCLUSIONS: This study demonstrates exceptionally durable long-term cancer-free survival following salvage surgery for LRRC, indicating that cure is possible.


Asunto(s)
Predicción , Recurrencia Local de Neoplasia/terapia , Estadificación de Neoplasias , Neoplasias del Recto/terapia , Terapia Recuperativa/métodos , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/diagnóstico , Pronóstico , Neoplasias del Recto/diagnóstico , Neoplasias del Recto/mortalidad , Estudios Retrospectivos
10.
JCO Precis Oncol ; 4: 520-533, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-35050743

RESUMEN

PURPOSE: Plasma detection of EGFR T790M mutations is an emerging alternative to tumor rebiopsy in acquired epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor resistance. Validation of analytical sensitivity and clinical utility is required before routine diagnostic use in clinical laboratories. PATIENTS AND METHODS: Sixty-three patients with advanced EGFR-mutant lung cancer at 7 Canadian centers, who were being screened for the ASTRIS trial (ClinicalTrials.gov identifier: NCT02474355), participated in this companion study. Plasma T790M mutation was detected using droplet digital polymerase chain reaction, Cobas (Roche Diagnostics, Indianapolis, IN), or next-generation sequencing in 4 laboratories. T790M concordance was assessed between plasma and tumor samples. RESULTS: Assessment of T790M in tumor biopsy tissue was successful in 81% of patients; 49% had confirmed T790M results (tumor or plasma) for ASTRIS. Plasma testing in this companion study yielded T790M results in 97% of patients; 62% had T790M-positive results, 36% had negative results, and 2% had indeterminate results. Of 38 patients with negative or indeterminate biopsy results, 55% had positive plasma T790M results, increasing the proportion with T790M-positive results to 73%. Sensitivity of plasma T790M testing was 75%. Overall concordance between tissue and plasma was 64%, and concordance among laboratories was 90.3%. Response to osimertinib and duration of therapy were similar irrespective of testing method (overall response rate, 62.5% for tissue, 66.7% for plasma, and 70.6% for both). CONCLUSION: This multicenter validation study demonstrates that plasma EGFR T790M testing can identify significantly more patients than biopsy alone who may benefit from targeted therapy.

11.
Curr Oncol ; 28(1): 40-51, 2020 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-33704173

RESUMEN

Background: The COVID-19 pandemic has put enormous pressure on hospital resources, and has affected all aspects of patient care. As operative volumes decrease, cancer surgeries must be triaged and prioritized with careful thought and attention to ensure maximal benefit for the maximum number of patients. Peritoneal malignancies present a unique challenge, as surgical management can be resource intensive, but patients have limited non-surgical treatment options. This review summarizes current data on outcomes and resource utilization to help inform decision-making and case prioritization in times of constrained health care resources. Methods: A rapid literature review was performed, examining surgical and non-surgical outcomes data for peritoneal malignancies. Narrative data synthesis was cross-referenced with relevant societal guidelines. Peritoneal malignancy surgeons and medical oncologists reviewed recommendations to establish a national perspective on case triage and mitigating treatment strategies. Results and Conclusions: Triage of peritoneal malignancies during this time of restricted health care resource is nuanced and requires multidisciplinary discussion with consideration of individual patient factors. Prioritization should be given to patients where delay may compromise resectability of disease, and where alternative treatment options are lacking. Mitigating strategies such as systemic chemotherapy and/or surgical deferral may be utilized with close surveillance for disease stability or progression, which may affect surgical urgency. Unique hospital capacity, and ability to manage the complex post-operative course for these patients must also be considered to ensure patient and system needs are aligned.


Asunto(s)
COVID-19/prevención & control , Procedimientos Quirúrgicos de Citorreducción/métodos , Recursos en Salud/estadística & datos numéricos , Neoplasias Peritoneales/cirugía , SARS-CoV-2/aislamiento & purificación , Triaje/métodos , COVID-19/epidemiología , COVID-19/virología , Terapia Combinada , Medicina Basada en la Evidencia/métodos , Humanos , Pandemias , Selección de Paciente , Neoplasias Peritoneales/terapia , SARS-CoV-2/fisiología , Oncología Quirúrgica/métodos
12.
Lung Cancer ; 139: 185-194, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31812889

RESUMEN

OBJECTIVES: Treatment of advanced NSCLC (aNSCLC) is rapidly evolving, as new targeted and immuno-oncology (I-O) treatments become available. The iTEN model was developed to predict the cost and survival benefits of changing aNSCLC treatment patterns from a Canadian healthcare system perspective. This report describes iTEN model development and validation. MATERIALS & METHODS: A discrete event patient simulation of aNSCLC was developed. A modified Delphi process using Canadian clinical experts informed the development of treatment sequences that included commonly used, Health Canada approved treatments of aNSCLC. Treatment efficacy and the timing of progression and death were estimated from published Kaplan-Meier progression free and overall survival data. Costs (2018 CDN$) included were: drug acquisition and administration, imaging, monitoring, adverse events, physician visits, best supportive care, and end-of-life. RESULTS AND CONCLUSION: Clinical validity of the iTEN model was assessed by comparing model survival predictions to published real-world evidence (RWE). Four RWE studies that reported the overall survival of patients treated with a broad sampling of common aNSCLC treatment patterns were used for validation. The validation coefficient of determination was R2 = 0.95, with the model generally producing estimates that were neither optimistic nor conservative. The model estimated that current Canadian practice patterns yield a median survival of almost 13 months, a five-year survival rate of 3% and a life-time per-treated-patient cost of $110,806. Cost and survival estimates are presented and were found to vary by aNSCLC subtype. In conclusion, the iTEN model is a reliable tool for forecasting the impact on cost and survival of new treatments for aNSCLC.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/economía , Biomarcadores de Tumor/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/economía , Análisis Costo-Beneficio , Neoplasias Pulmonares/economía , Modelos Estadísticos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/mortalidad , Estudios de Seguimiento , Costos de la Atención en Salud , Humanos , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/mortalidad , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia
13.
Clin Colorectal Cancer ; 17(1): 73-79, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29128266

RESUMEN

BACKGROUND: Molecular aberrations in KRAS, NRAS, BRAF, and PIK3CA have been well-described in advanced colorectal cancer. The incidences of other mutations are less known. We report results of molecular profiling of advanced colorectal cancer in an academic cancer center. PATIENTS AND METHODS: Patients with advanced colorectal were enrolled in an institution-wide molecular profiling program. Profiling was performed on formalin-fixed paraffin embedded archival tissues using a customized MassArray panel (23 genes, 279 mutations) or the Illumina MiSeq TruSeq Cancer Panel (48 genes, 212 amplicons, ≥ 500× coverage) in a Clinical Laboratory Improvement Amendments-certified laboratory. PTEN was determined by immunohistochemistry. RESULTS: From March 2012 to April 2014, 245 patients were enrolled. At least one mutation was found in 54% (97/178) and 91% (61/67) of patients using MassArray or MiSeq platforms, respectively (P < .01). Of all patients, KRAS G12/13 mutation was identified in 39%, and non-G12/13 KRAS, BRAF, or NRAS mutations were present in 9%, 6%, and 4%, respectively. Other common mutations included TP53 (68.7%), APC (41.8%), and PIK3CA (13.5%). Co-mutation with KRAS, NRAS, or BRAF was found in 75% of patients with PIK3CA mutation. Of 106 patients with known PTEN immunohistochemistry status, 16% were negative. A higher average number of mutations were observed in right versus left colorectal cancer (P < .01), with 13 of 14 BRAF mutations located in right colon cancer. CONCLUSION: Mutations are common in advanced colorectal cancer. Right colon cancers harbor more genetic aberrations than left colon or rectal cancers. These aberrations may contribute to differential outcomes to anti-epidermal growth factor receptor therapy among patients with right colon, left colon, or rectal cancers.


Asunto(s)
Neoplasias Colorrectales/genética , Neoplasias Colorrectales/patología , Transcriptoma , Adulto , Anciano , Biomarcadores de Tumor/genética , Neoplasias Colorrectales/mortalidad , Análisis Mutacional de ADN , Femenino , Perfilación de la Expresión Génica , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Mutación
14.
Target Oncol ; 12(5): 599-610, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28801849

RESUMEN

Colorectal cancer (CRC) is a leading cause of tumor-related morbidity and mortality worldwide, with mortality most often attributable to metastatic disease. Bevacizumab, a humanized monoclonal antibody targeting vascular endothelial growth factor, has a significant role in the treatment of metastatic CRC (mCRC). However, patient access to bevacizumab may be limited in some regions or circumstances, owing to factors related to insurance coverage, reimbursement, patient out-of-pocket costs, or availability. As a result, outcomes for patients with mCRC may be worsened. Additionally, counterfeit bevacizumab has infiltrated legitimate supply chains, exposing patients to risk. Oncologists may also be affected detrimentally, since resolving access issues can be time-consuming and demoralizing. The imminent expiry of patents protecting bevacizumab provides other manufacturers with the opportunity to produce highly similar versions known as biosimilars. High-quality, safe, and effective biosimilars have the potential to expand access to bevacizumab. Most of the bevacizumab biosimilars currently in development are in clinical trials in patients with non-small-cell lung cancer, and future authorization for mCRC indications will, therefore, be based on extrapolation. This article reviews the current role of bevacizumab in the management of mCRC, the possible barriers associated with diminished access to bevacizumab, and the potential bevacizumab biosimilars in development. How biosimilars may impact the treatment of mCRC is also discussed.


Asunto(s)
Antineoplásicos Inmunológicos/uso terapéutico , Bevacizumab/uso terapéutico , Biosimilares Farmacéuticos/uso terapéutico , Neoplasias Colorrectales/tratamiento farmacológico , Humanos
15.
Clin Lung Cancer ; 18(3): 274-280.e6, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-28185791

RESUMEN

INTRODUCTION: Lung cancer is associated with higher levels of symptom distress and unmet needs than other cancer types. We assessed changes in symptoms, function, understanding, and preferences of patients with advanced lung cancer over a 10-year period. MATERIALS AND METHODS: A 26-item self-administered questionnaire was used to assess symptom burden, functional impairment, knowledge of disease and treatment, and information preferences. The survey was administered to consecutive outpatients with advanced lung cancer first in 2002 and a second cohort in 2012. RESULTS: A total of 108 patients with advanced lung cancer were surveyed in 2002, and 100 in 2012. Rates of severe physical symptoms were similar over the 10-year period. The most common symptoms remained fatigue, cough, and dyspnea. One-third perceived major impairment of daily activities from lung cancer. Significant anxiety was reported by at least 20%; nearly a quarter reported being unable to meet family needs. More patients in 2012 received information on treatment benefits, side effects, and clinical trials. Only 40% reported having end-of-life wishes, and fewer than half had discussed these with their oncologist. Over time, more patients expressed a preference for treatment associated with increased survival even if it compromised quality of life. Half were interested in Internet-based resources, most in print media, and a growing number in telephone support. CONCLUSION: Patients with advanced lung cancer continue to experience significant symptom distress and unmet needs despite advances in treatment. Comprehensive assessment and symptom, psychological, financial, and information support remain key areas for improvement in the care of patients with advanced lung cancer.


Asunto(s)
Neoplasias Pulmonares/epidemiología , Mejoramiento de la Calidad , Calidad de Vida , Actividades Cotidianas , Anciano , Canadá/epidemiología , Tos , Disnea , Fatiga , Femenino , Humanos , Neoplasias Pulmonares/fisiopatología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Educación del Paciente como Asunto , Prioridad del Paciente , Ideación Suicida , Encuestas y Cuestionarios
16.
Clin Lung Cancer ; 18(2): 156-161, 2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-27913214

RESUMEN

BACKGROUND: Patients with lung cancer are at increased risk for venous thromboembolism (VTE), particularly those receiving chemotherapy. It is estimated that 8% to 15% of patients with advanced non-small-cell lung cancer (NSCLC) experience a VTE in the course of their disease. The incidence in patients with specific molecular subtypes of NSCLC is unknown. We undertook this review to determine the incidence of VTE in patients with ALK (anaplastic lymphoma kinase)-rearranged NSCLC. PATIENTS AND METHODS: We identified all patients with ALK-rearranged NSCLC diagnosed and/or treated at the Princess Margaret Cancer Centre (PM CC) in Canada between July 2012 and January 2015. Retrospective data were extracted from electronic medical records. We then included a validation cohort comprising all consecutive patients with ALK-rearranged NSCLC treated in 2 tertiary centers in Israel. RESULTS: Within the PM CC cohort, of 55 patients with ALK-rearranged NSCLC, at a median follow-up of 22 months, 23 (42%) experienced VTE. Patients with VTE were more likely to be white (P = .006). The occurrence of VTE was associated with a trend toward worse prognosis (overall survival hazard ratio = 2.88, P = .059). Within the validation cohort (n = 43), the VTE rate was 28% at a median follow-up of 13 months. Combining the cohorts (n = 98), the VTE rate was 36%. Patients with VTE were younger (age 52 vs. 58 years, P = .04) and had a worse Eastern Cooperative Oncology Group performance status (P = .04). VTE was associated with shorter overall survival (hazard ratio = 5.71, P = .01). CONCLUSION: The rate of VTE in our ALK-rearranged cohort was 3- to 5-fold higher than previously reported for the general NSCLC population. This warrants confirmation in larger cohorts.


Asunto(s)
Biomarcadores de Tumor/genética , Carcinoma de Pulmón de Células no Pequeñas/genética , Neoplasias Pulmonares/genética , Proteínas Tirosina Quinasas Receptoras/genética , Tromboembolia Venosa/epidemiología , Adulto , Anciano , Quinasa de Linfoma Anaplásico , Canadá/epidemiología , Carcinoma de Pulmón de Células no Pequeñas/patología , Femenino , Estudios de Seguimiento , Reordenamiento Génico , Humanos , Neoplasias Pulmonares/patología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Prevalencia , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia , Tromboembolia Venosa/genética
17.
Br J Cancer ; 114(6): 616-22, 2016 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-26889973

RESUMEN

BACKGROUND: We examined clinical outcomes in a population-based cohort of EGFR mutant advanced NSCLC patients, exploring the potential role of factors including tumour EGFR mutation fraction and cellularity in predicting outcomes. METHODS: A cohort of patients with EGFR mutant advanced NSCLC was identified (N =2 93); clinical outcomes, pathologic and treatment details were collected. Tumour response was determined from radiology and clinical notes. Association between demographic and pathologic variables EGFR TKI response, time to treatment failure (TTF) and overall survival (OS) was examined using logistic regression and proportional hazards regression. EGFR TKI response rates were summarised by percent mutation fraction to explore their association. RESULTS: Higher mutation fraction was associated with greater EGFR TKI response rate (odds ratio 1.58, 95% CI = 1.21-2.07, P = 0.0008), longer TTF (hazard ratio 0.80, 95% CI = 0.68-0.92, P = 0.003) and better OS (hazard ratio 0.81, 95% CI = 0.67-0.99, P = 0.04). However, even in patients with ⩽ 5% mutation fraction, response rate was 34%. Females had longer TTF (P = 0.02). CONCLUSIONS: EGFR mutation fraction in tumour samples was significantly associated with response, TTF and OS. Despite this, no lower level of mutation fraction was detected for which EGFR TKI should be withheld in those with activating EGFR mutations.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/genética , Receptores ErbB/genética , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/genética , Mutación , Inhibidores de Proteínas Quinasas/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Pulmón de Células no Pequeñas/enzimología , Carcinoma de Pulmón de Células no Pequeñas/patología , Estudios de Cohortes , Supervivencia sin Enfermedad , Receptores ErbB/antagonistas & inhibidores , Humanos , Neoplasias Pulmonares/enzimología , Neoplasias Pulmonares/patología , Persona de Mediana Edad
18.
Clin Lung Cancer ; 17(2): 133-41, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26872764

RESUMEN

INTRODUCTION: Concurrent thoracic radiation and platinum-based chemotherapy is the standard of care for treatment of unresectable stage IIIA-IIIB non-small-cell lung cancer (NSCLC), but the optimal drug regimen has not been established. PATIENTS AND METHODS: In the present single-arm phase II trial, patients with previously untreated, unresectable stage IIIA-IIIB NSCLC (all histologic types) were treated with pemetrexed-cisplatin (500 mg/m(2) intravenously on days 1 and 22, 20 mg/m(2) intravenously on days 1-5 and days 22-26) concurrent with radiotherapy (61-66 Gy in 31-35 fractions), followed by 2 cycles of consolidation pemetrexed-cisplatin (75 mg(2)) therapy. The primary endpoint was the 1-year overall survival (OS) rate. The study treatment was considered active if the 1-year OS rate was ≥ 70%. RESULTS: A total of 39 patients, including 6 from the previous phase I trial who had been treated at the recommended phase II dose, were eligible for analysis. The most common drug-related grade 3 to 4 adverse events during the concurrent phase were hematologic and 5.1% of patients experienced grade 3 esophagitis. The response rate was 45.9% (17 of 37 patients), with no complete responses. The 1-, 2-, and 3-year OS survival rates were 79.5%, 56.4%, and 46.2%, respectively. The median OS, time to progressive disease, and progression-free survival was 30.3, 13.7, and 11.8 months, respectively. CONCLUSION: Full-dose cisplatin and pemetrexed can be administered concurrently with conventional doses of thoracic radiation. The median and 1-year OS rates were favorable compared with published clinical trials in this setting. The regimen was tolerable, and the toxicity profile was consistent with the known toxicity profiles of pemetrexed, cisplatin, and radiation.


Asunto(s)
Adenocarcinoma/terapia , Carcinoma de Pulmón de Células no Pequeñas/terapia , Quimioradioterapia , Cisplatino/uso terapéutico , Pemetrexed/uso terapéutico , Adenocarcinoma/mortalidad , Adenocarcinoma/patología , Anciano , Carcinoma de Pulmón de Células no Pequeñas/mortalidad , Carcinoma de Pulmón de Células no Pequeñas/patología , Quimioradioterapia/efectos adversos , Esofagitis/etiología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Análisis de Supervivencia , Resultado del Tratamiento
19.
J Clin Oncol ; 34(8): 810-5, 2016 Mar 10.
Artículo en Inglés | MEDLINE | ID: mdl-26573073

RESUMEN

PURPOSE: Erlotinib is an epidermal growth factor receptor inhibitor approved for patients with advanced non-small-cell lung cancer (NSCLC) whose epidermal growth factor receptor expression status is positive or unknown. Although it is efficacious, erlotinib can cause skin toxicity. This prospective, randomized phase III trial examined the effect of prophylactic treatment of erlotinib-induced skin rash. PATIENTS AND METHODS: Patients receiving erlotinib in the second- or third-line setting for advanced NSCLC were randomly assigned to prophylactic minocycline (100 mg twice per day for 4 weeks), reactive treatment (after rash developed, per grade of rash), or no treatment unless severe (grade 3). Rash incidence and severity, time to maximal rash, time to resolution, and overall survival (OS) were compared among treatment groups. RESULTS: In all, 150 patients were randomly assigned, 50 to each of three treatment arms. The incidence of skin toxicity was 84% regardless of treatment arm. Prophylactic treatment with minocycline significantly lengthened the time to the most severe grade of rash. Grade 3 rash was significantly higher in the no-treatment arm. OS was not significantly different among treatment arms, but patients receiving prophylactic or reactive treatments had a longer OS (7.6 and 8 months, respectively) than those who received no rash treatment (6 months). Rash was not self-limiting. CONCLUSION: The incidence of all grades of rash did not differ statistically among the three arms, so the trial was negative. The incidence of grade 3 skin toxicities was reduced in patients who were treated with prophylactic minocycline or reactive treatment. Efficacy was not compromised. Prophylactic minocycline and reactive treatment are both acceptable options for the necessary treatment of erlotinib-induced rash in the second- or third-line setting of metastatic NSCLC.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Clorhidrato de Erlotinib/efectos adversos , Exantema/etiología , Exantema/prevención & control , Neoplasias Pulmonares/tratamiento farmacológico , Minociclina/administración & dosificación , Inhibidores de Proteínas Quinasas/efectos adversos , Carcinoma de Pulmón de Células no Pequeñas/enzimología , Carcinoma de Pulmón de Células no Pequeñas/patología , Clorhidrato de Erlotinib/administración & dosificación , Femenino , Humanos , Neoplasias Pulmonares/enzimología , Neoplasias Pulmonares/patología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Inhibidores de Proteínas Quinasas/administración & dosificación
20.
Front Oncol ; 4: 192, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25126538

RESUMEN

The management of non-small cell lung cancer (NSCLC) has evolved into a multidisciplinary team approach that traditionally has involved medical oncology, radiation oncology, and thoracic surgery. However, in the era of personalized medicine the importance of molecular diagnostics requires adequate tissue for histologic subtyping and molecular testing and thus requires the engagement of other subspecialties such as pathology, respirology, and interventional radiology. Unfortunately in 2014, the majority of patients presenting with NSCLC will succumb to their disease and the early integration of palliative care into the treatment strategy will improve the quality of life and end-of-life care of our patients and may in fact improve their overall survival.

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