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1.
J Natl Compr Canc Netw ; 21(10): 1000-1010, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37856201

RESUMO

The NCCN Guidelines for Genetic/Familial High-Risk Assessment: Breast, Ovarian, and Pancreatic focus primarily on assessment of pathogenic/likely pathogenic (P/LP) variants associated with increased risk of breast, ovarian, pancreatic, and prostate cancer, including BRCA1, BRCA2, CDH1, PALB2, PTEN, and TP53, and recommended approaches to genetic counseling/testing and care strategies in individuals with these P/LP variants. These NCCN Guidelines Insights summarize important updates regarding: (1) a new section for transgender, nonbinary and gender diverse people who have a hereditary predisposition to cancer focused on risk reduction strategies for ovarian cancer, uterine cancer, prostate cancer, and breast cancer; and (2) testing criteria and management associated with TP53 P/LP variants and Li-Fraumeni syndrome.


Assuntos
Neoplasias da Mama , Neoplasias Ovarianas , Masculino , Feminino , Humanos , Mutação em Linhagem Germinativa , Testes Genéticos , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/genética , Predisposição Genética para Doença , Fatores de Risco , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/genética
2.
J Natl Compr Canc Netw ; 21(4): 351-358.e4, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37015340

RESUMO

BACKGROUND: Germline genetic testing (GT) for BRCA1/2 is instrumental in identifying patients with breast and ovarian cancers who are eligible for PARP inhibitors (PARPi). Little is known about recent trends and determinants of GT since PARPi were approved for these patients. PATIENTS AND METHODS: We performed a retrospective cohort study of patients in a nationwide electronic health record (EHR)-derived oncology-specific database with the following GT eligibility criteria: breast cancer diagnosed at age ≤45 years, triple-negative breast cancer diagnosed at age ≤60 years, male breast cancer, or ovarian cancer. GT within 1 year of diagnosis was assessed and stratified by tumor type. Multivariable log-binomial regressions estimated adjusted relative risks (RRs) of GT by patient and tumor characteristics. RESULTS: Among 2,982 eligible patients with breast cancer, 56.4% underwent GT between January 2011 and March 2020, with a significant increase in GT over time (RR, 1.08; 95% CI, 1.05-1.11, for each year), independent of when PARPi were approved for BRCA1/2-mutated metastatic breast cancer in January 2018. In multivariable analyses, older age (RR, 0.93; 95% CI, 0.90-0.96, for every 5 years) and Medicare coverage (RR, 0.69; 95% CI, 0.49-0.96 vs commercial insurance) were associated with less GT. Among 5,563 eligible patients with ovarian cancer, 35.4% underwent GT between January 2011 and March 2020, with a significant increase in GT over time (RR, 1.11; 95% CI, 1.07-1.14, for each year) that accelerated after approval of PARPi for BRCA1/2-mutated, chemotherapy-refractory ovarian cancer in December 2014 (RR, 1.42; 95% CI, 1.19-1.70). Older age (RR, 0.95; 95% CI, 0.93-0.97, for every 5 years) and Black or African American race (RR, 0.80; 95% CI, 0.65-0.98 vs White race) were associated with less GT. CONCLUSIONS: GT remains underutilized nationwide among patients with breast and ovarian cancers. Although GT has increased over time, significant disparities by age, race, and insurance status persist. Additional work is needed to design, implement, and evaluate strategies to ensure that all eligible patients receive GT.


Assuntos
Neoplasias da Mama , Neoplasias Ovarianas , Neoplasias de Mama Triplo Negativas , Estados Unidos/epidemiologia , Humanos , Masculino , Idoso , Feminino , Pessoa de Meia-Idade , Estudos Retrospectivos , Medicare , Proteína BRCA1/genética , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/genética , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/genética , Testes Genéticos , Neoplasias de Mama Triplo Negativas/patologia , Inibidores de Poli(ADP-Ribose) Polimerases/uso terapêutico
3.
JCO Precis Oncol ; 52021 06.
Artigo em Inglês | MEDLINE | ID: mdl-34322652

RESUMO

PURPOSE: Breast cancer risks for CHEK2 and ATM pathogenic variant (PV) carriers are modified by an 86-single nucleotide polymorphism polygenic risk score (PRS) and individual clinical factors. Here, we describe comprehensive risk prediction models for women of European ancestry combining PV status, PRS, and individual clinical variables. MATERIALS AND METHODS: This study included deidentified clinical records from 358,095 women of European ancestry who received testing with a multigene panel (September 2013 to November 2019). Model development included CHEK2 PV carriers (n = 4,286), ATM PV carriers (n = 2,666), and women negative for other breast cancer risk gene PVs (n = 351,143). Odds ratios (ORs) were calculated using multivariable logistic regression with adjustment for familial cancer history. Risk estimates incorporating PV status, PRS, and Tyrer-Cuzick v7.02 were calculated using a Fixed-Stratified method that accounts for correlations between risk factors. Stratification of PV carriers into risk categories on the basis of remaining lifetime risk (RLR) was assessed in independent cohorts of PV carriers. RESULTS: ORs for association of PV status with breast cancer were 2.01 (95% CI, 1.88 to 2.16) and 1.83 (95% CI, 1.68 to 2.00) for CHEK2 and ATM PV carriers, respectively. ORs for PRS per one standard deviation were 1.51 (95% CI, 1.37 to 1.66) and 1.45 (95% CI, 1.30 to 1.64) in CHEK2 and ATM PV carriers, respectively. Using the combined model (PRS plus Tyrer-Cuzick plus PV status), RLR was low (≤ 20%) for 24.2% of CHEK2 PV carriers, medium (20%-50%) for 63.8%, and high (> 50%) for 12.0%. Among ATM PV carriers, RLR was low for 31.5% of patients, medium for 58.5%, and high for 9.7%. CONCLUSION: In CHEK2 and ATM PV carriers, risk assessment including PRS, Tyrer-Cuzick, and PV status has the potential for more precise direction of screening and prevention strategies.


Assuntos
Proteínas Mutadas de Ataxia Telangiectasia/genética , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/genética , Quinase do Ponto de Checagem 2/genética , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Predisposição Genética para Doença , Testes Genéticos/métodos , Heterozigoto , Humanos , Modelos Logísticos , Pessoa de Meia-Idade , Medição de Risco/métodos , Fatores de Risco , População Branca , Adulto Jovem
4.
Cancer Med ; 10(13): 4532-4541, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34102012

RESUMO

PURPOSE: To examine the benefit of telehealth over current delivery options in oncology practices without genetic counselors. METHODS: Participants meeting cancer genetic testing guidelines were recruited to this multi-center, randomized trial comparing uptake of genetic services with remote services (telephone or videoconference) to usual care in six predominantly community practices without genetic counselors. The primary outcome was the composite uptake of genetic counseling or testing. Secondary outcomes compare telephone versus videoconference services. RESULTS: 147 participants enrolled and 119 were randomized. Eighty percent of participants in the telehealth arm had genetic services as compared to 16% in the usual care arm (OR 30.52, p < 0.001). Five genetic mutation carriers (6.7%) were identified in the telehealth arm, compared to none in the usual care arm. In secondary analyses, factors associated with uptake were lower anxiety (6.77 vs. 8.07, p = 0.04) and lower depression (3.38 vs. 5.06, p = 0.04) among those who had genetic services. There were no significant differences in change in cognitive or affective outcomes immediately post-counseling and at 6 and 12 months between telephone and videoconference arms. CONCLUSION: Telehealth increases uptake of genetic counseling and testing at oncology practices without genetic counselors and could significantly improve identification of genetic carriers and cancer prevention outcomes.


Assuntos
Serviços em Genética/estatística & dados numéricos , Oncologia/estatística & dados numéricos , Telemedicina/estatística & dados numéricos , Ansiedade/epidemiologia , Conselheiros , Depressão/epidemiologia , Feminino , Triagem de Portadores Genéticos/estatística & dados numéricos , Aconselhamento Genético/estatística & dados numéricos , Testes Genéticos/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Taxa de Mutação , Fatores Socioeconômicos , Telemedicina/métodos , Telefone/estatística & dados numéricos , Fatores de Tempo , Comunicação por Videoconferência/estatística & dados numéricos
5.
J Natl Compr Canc Netw ; 19(1): 77-102, 2021 01 06.
Artigo em Inglês | MEDLINE | ID: mdl-33406487

RESUMO

The NCCN Guidelines for Genetic/Familial High-Risk Assessment: Breast, Ovarian, and Pancreatic focus primarily on assessment of pathogenic or likely pathogenic variants associated with increased risk of breast, ovarian, and pancreatic cancer and recommended approaches to genetic testing/counseling and management strategies in individuals with these pathogenic or likely pathogenic variants. This manuscript focuses on cancer risk and risk management for BRCA-related breast/ovarian cancer syndrome and Li-Fraumeni syndrome. Carriers of a BRCA1/2 pathogenic or likely pathogenic variant have an excessive risk for both breast and ovarian cancer that warrants consideration of more intensive screening and preventive strategies. There is also evidence that risks of prostate cancer and pancreatic cancer are elevated in these carriers. Li-Fraumeni syndrome is a highly penetrant cancer syndrome associated with a high lifetime risk for cancer, including soft tissue sarcomas, osteosarcomas, premenopausal breast cancer, colon cancer, gastric cancer, adrenocortical carcinoma, and brain tumors.


Assuntos
Neoplasias da Mama , Neoplasias Ovarianas , Neoplasias Pancreáticas , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/genética , Feminino , Genes BRCA1 , Genes BRCA2 , Aconselhamento Genético , Predisposição Genética para Doença , Testes Genéticos , Humanos , Masculino , Mutação , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/genética , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/genética
6.
J Natl Compr Canc Netw ; 18(4): 380-391, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32259785

RESUMO

The NCCN Guidelines for Genetic/Familial High-Risk Assessment: Breast, Ovarian, and Pancreatic provide recommendations for genetic testing and counseling for hereditary cancer syndromes, and risk management recommendations for patients who are diagnosed with syndromes associated with an increased risk of these cancers. The NCCN panel meets at least annually to review comments, examine relevant new data, and reevaluate and update recommendations. These NCCN Guidelines Insights summarize the panel's discussion and most recent recommendations regarding criteria for high-penetrance genes associated with breast and ovarian cancer beyond BRCA1/2, pancreas screening and genes associated with pancreatic cancer, genetic testing for the purpose of systemic therapy decision-making, and testing for people with Ashkenazi Jewish ancestry.


Assuntos
Síndromes Neoplásicas Hereditárias/diagnóstico , Síndromes Neoplásicas Hereditárias/genética , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/genética , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/genética , Biomarcadores Tumorais , Feminino , Estudos de Associação Genética , Aconselhamento Genético , Predisposição Genética para Doença , Testes Genéticos , Humanos , Síndromes Neoplásicas Hereditárias/terapia , Penetrância , Neoplasias Pancreáticas
7.
JACC Cardiovasc Imaging ; 13(1 Pt 2): 198-210, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31542526

RESUMO

OBJECTIVES: This study determined the effects of doxorubicin and/or trastuzumab on diastolic function and the relationship between diastolic function and systolic dysfunction. BACKGROUND: Doxorubicin and trastuzumab can result in left ventricular ejection fraction (LVEF) declines. However, the effects of these therapies on diastolic function remain incompletely defined. METHODS: In a rigorously phenotyped, longitudinal cohort study of 362 breast cancer participants treated with doxorubicin, doxorubicin followed by trastuzumab, or trastuzumab alone, changes in diastolic function were evaluated using linear models estimated via generalized estimating equations. Associations between baseline and changes in diastolic function with LVEF and longitudinal strain were also determined using generalized estimating equations. The Kaplan-Meier estimator derived the proportion of participants who experienced incident diastolic dysfunction. Cox proportional hazards models estimated the associations between participant characteristics and diastolic dysfunction risk, and between diastolic function and cancer therapy-related cardiac dysfunction risk, defined by an LVEF decline of ≥10% to <50%. RESULTS: Over a median of 2.1 years (interquartile range [IQR]: 1.3 to 4.2 years), participants treated with doxorubicin or doxorubicin followed by trastuzumab demonstrated a persistent worsening in diastolic function, with reductions in the E/A ratio, lateral and septal e' velocities, and increases in E/e' (p < 0.01). These changes were not observed with trastuzumab alone. Incident abnormal diastolic function grade occurred in 60% at 1 year, 70% by 2 years, and 80% by 3 years. Abnormal diastolic function grade was associated with a subsequent decrease in LVEF (-2.1%; 95% confidence intervals [CI]: -3.1 to -1.2; p < 0.001) and worsening in longitudinal strain (0.6%; 95% CI: 0.1 to 1.1; p = 0.013) over time. Changes in E/e' ratio were modestly associated with worsening longitudinal strain (0.1%; 95% CI: 0.0 to 0.2; p = 0.022). CONCLUSIONS: A modest, persistent worsening of diastolic function is observed with contemporary breast cancer therapy. Abnormal and worsening diastolic dysfunction is associated with a small risk of subsequent systolic dysfunction. (Cardiotoxicity of Cancer Therapy [CCT]; NCT01173341).


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Doxorrubicina/efeitos adversos , Volume Sistólico/efeitos dos fármacos , Trastuzumab/efeitos adversos , Disfunção Ventricular Esquerda/induzido quimicamente , Função Ventricular Esquerda/efeitos dos fármacos , Adulto , Cardiotoxicidade , Diástole , Ecocardiografia Doppler , Feminino , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/fisiopatologia
8.
J Clin Oncol ; 36(31): 3134-3143, 2018 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-30240327

RESUMO

PURPOSE: This multicenter phase II trial evaluated lurbinectedin (PM01183), a selective inhibitor of active transcription of protein-coding genes, in patients with metastatic breast cancer. A unicenter translational substudy assessed potential mechanisms of lurbinectedin resistance. PATIENTS AND METHODS: Two arms were evaluated according to germline BRCA1/2 status: BRCA1/2 mutated (arm A; n = 54) and unselected ( BRCA1/2 wild-type or unknown status; arm B; n = 35). Lurbinectedin starting dose was a 7-mg flat dose and later, 3.5 mg/m2 in arm A. The primary end point was objective response rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST). The translational substudy of resistance mechanisms included exome sequencing (n = 13) and in vivo experiments with patient-derived xenografts (n = 11) from BRCA1/2-mutated tumors. RESULTS: ORR was 41% (95% CI, 28% to 55%) in arm A and 9% (95% CI, 2% to 24%) in arm B. In arm A, median progression-free survival was 4.6 months (95% CI, 3.0 to 6.0 months), and median overall survival was 20.0 months (95% CI, 11.8 to 26.6 months). Patients with BRCA2 mutations showed an ORR of 61%, median progression-free survival of 5.9 months, and median overall survival of 26.6 months. The safety profile improved with lurbinectedin dose adjustment to body surface area. The most common nonhematologic adverse events seen at 3.5 mg/m2 were nausea (74%; grade 3, 5%) and fatigue (74%; grade 3, 21%). Neutropenia was the most common severe hematologic adverse event (grade 3, 47%; grade 4, 10%). Exome sequencing showed mutations in genes related to the nucleotide excision repair pathway in four of seven tumors at primary or acquired resistance and in one patient with short-term stable disease. In vivo, sensitivity to cisplatin and lurbinectedin was evidenced in lurbinectedin-resistant (one of two) and cisplatin-resistant (two of three) patient-derived xenografts. CONCLUSION: Lurbinectedin showed noteworthy activity in patients with BRCA1/2 mutations. Response and survival was notable in those with BRCA2 mutations. Additional clinical development in this subset of patients with metastatic breast cancer is warranted.


Assuntos
Antineoplásicos/administração & dosagem , Neoplasias da Mama/tratamento farmacológico , Carbolinas/administração & dosagem , Compostos Heterocíclicos de 4 ou mais Anéis/administração & dosagem , Adulto , Idoso , Animais , Antineoplásicos/efeitos adversos , Biomarcadores Tumorais/análise , Neoplasias da Mama/genética , Carbolinas/efeitos adversos , Relação Dose-Resposta a Droga , Feminino , Genes BRCA1 , Genes BRCA2 , Mutação em Linhagem Germinativa , Compostos Heterocíclicos de 4 ou mais Anéis/efeitos adversos , Humanos , Camundongos , Pessoa de Meia-Idade , Intervalo Livre de Progressão , Ensaios Antitumorais Modelo de Xenoenxerto
9.
BMC Health Serv Res ; 18(1): 391, 2018 05 31.
Artigo em Inglês | MEDLINE | ID: mdl-29855315

RESUMO

BACKGROUND: Bundled payment programs play an increasingly important role in transforming reimbursement for oncologic care. We assessed determinants of oncologists' willingness to participate in bundled payment programs for breast cancer. We hypothesized that providers would be more likely to participate in bundled payment programs if offered higher levels of reimbursement for each episode of care. METHODS: Oncologists from Florida, New Jersey, New York, and Pennsylvania were identified in the AMA database or by patients listed in state cancer registries. Providers were randomized to receive one of four versions of a survey describing bundled payment programs offering different levels of compensation for the first year of localized breast cancer treatment ($5000, $10,000, $15,000, or $20,000). Physicians rated their likelihood of participation in a bundled program on a Likert scale. Logistic regression was used to analyze determinants of likelihood of participation in bundling. RESULTS: Among 460 respondents, only 17% of oncologists were highly likely to participate in a bundled program paying $5000 for the first year of care, rising to 41% for the $15,000 program, but falling to 34% for the $20,000 program. Likelihood of participation was higher among oncologists who were male, older, and believed that cancer patients should not be offered high-cost drugs with minimal survival benefit. CONCLUSION: Our results suggest that medical oncologists have limited enthusiasm for bundled payments, and higher payments may not overcome resistance to bundling among a substantial proportion of physicians.


Assuntos
Neoplasias da Mama/economia , Oncologistas/psicologia , Mecanismo de Reembolso , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/terapia , Custos de Medicamentos , Feminino , Florida , Gastos em Saúde , Humanos , Modelos Logísticos , Masculino , Oncologia/economia , Pessoa de Meia-Idade , New Jersey , New York , Oncologistas/economia , Pennsylvania , Sistema de Registros , Inquéritos e Questionários
10.
J Clin Oncol ; 35(27): 3153-3159, 2017 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-28737972

RESUMO

At the ASCO Data Standards and Interoperability Summit held in May 2016, it was unanimously decided that four areas of current oncology clinical practice have serious, unmet health information technology needs. The following areas of need were identified: 1) omics and precision oncology, 2) advancing interoperability, 3) patient engagement, and 4) value-based oncology. To begin to address these issues, ASCO convened two complementary workshops: the Omics and Precision Oncology Workshop in October 2016 and the Advancing Interoperability Workshop in December 2016. A common goal was to address the complexity, enormity, and rapidly changing nature of genomic information, which existing electronic health records are ill equipped to manage. The subject matter experts invited to the Omics and Precision Oncology Workgroup were tasked with the responsibility of determining a specific, limited need that could be addressed by a software application (app) in the short-term future, using currently available genomic knowledge bases. Hence, the scope of this workshop was to determine the basic functionality of one app that could serve as a test case for app development. The goal of the second workshop, described separately, was to identify the specifications for such an app. This approach was chosen both to facilitate the development of a useful app and to help ASCO and oncologists better understand the mechanics, difficulties, and gaps in genomic clinical decision support tool development. In this article, we discuss the key challenges and recommendations identified by the workshop participants. Our hope is to narrow the gap between the practicing oncologist and ongoing national efforts to provide precision oncology and value-based care to cancer patients.


Assuntos
Genômica , Informática Médica , Oncologia , Oncologistas , Congressos como Assunto , Humanos , Aplicativos Móveis , Avaliação das Necessidades , Sociedades Médicas , Estados Unidos
12.
J Clin Oncol ; 33(31): 3660-7, 2015 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-26324357

RESUMO

The American Society of Clinical Oncology (ASCO) has long affirmed that the recognition and management of individuals with an inherited susceptibility to cancer are core elements of oncology care. ASCO released its first statement on genetic testing in 1996 and updated that statement in 2003 and 2010 in response to developments in the field. In 2014, the Cancer Prevention and Ethics Committees of ASCO commissioned another update to reflect the impact of advances in this area on oncology practice. In particular, there was an interest in addressing the opportunities and challenges arising from the application of massively parallel sequencing-also known as next-generation sequencing-to cancer susceptibility testing. This technology introduces a new level of complexity into the practice of cancer risk assessment and management, requiring renewed effort on the part of ASCO to ensure that those providing care to patients with cancer receive the necessary education to use this new technology in the most effective, beneficial manner. The purpose of this statement is to explore the challenges of new and emerging technologies in cancer genetics and provide recommendations to ensure their optimal deployment in oncology practice. Specifically, the statement makes recommendations in the following areas: germline implications of somatic mutation profiling, multigene panel testing for cancer susceptibility, quality assurance in genetic testing, education of oncology professionals, and access to cancer genetic services.


Assuntos
Predisposição Genética para Doença , Testes Genéticos/legislação & jurisprudência , Oncologia/legislação & jurisprudência , Oncologia/organização & administração , Neoplasias/genética , Genoma Humano , Genômica , Mutação em Linhagem Germinativa , Acessibilidade aos Serviços de Saúde , Humanos , Oncologia/educação , Patient Protection and Affordable Care Act , Garantia da Qualidade dos Cuidados de Saúde , Medição de Risco , Sociedades Médicas , Estados Unidos
13.
Breast Cancer Res ; 17: 67, 2015 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-25986460

RESUMO

INTRODUCTION: We present a fully automated method for deriving quantitative measures of background parenchymal enhancement (BPE) from breast dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and perform a preliminary evaluation of these measures to assess the effect of risk-reducing salpingo-oophorectomy (RRSO) in a cohort of breast cancer susceptibility gene 1/2 (BRCA1/2) mutation carriers. METHODS: Breast DCE-MRI data from 50 BRCA1/2 carriers were retrospectively analyzed in compliance with the Health Insurance Portability and Accountability Act and with institutional review board approval. Both the absolute (| |) and relative (%) measures of BPE and fibroglandular tissue (FGT) were computed from the MRI scans acquired before and after RRSO. These pre-RRSO and post-RRSO measures were compared using paired Student's t test. The area under the curve (AUC) of the receiver operating characteristic (ROC) was used to evaluate the performance of relative changes in the BPE and FGT measures in predicting breast cancer that developed in these women after the RRSO surgery. RESULTS: For the 44 women who did not develop breast cancer after RRSO, the absolute volume of BPE and FGT had a significant decrease (P < 0.05) post-RRSO, whereas for the 6 women who developed breast cancer, there were no significant changes in these measures. Higher values in all BPE and FGT measures were also observed post-RRSO for the women who developed breast cancer, compared with women who did not. Relative changes in BPE percentage were most predictive of women who developed breast cancer after RRSO (P < 0.05), whereas combining BPE percentage and |FGT| yielded an AUC of 0.80, higher than BPE percentage (AUC = 0.78) or |FGT| (AUC = 0.66) alone (both P > 0.02). CONCLUSIONS: Quantitative measures of BPE and FGT are different before and after RRSO, and their relative changes are associated with prediction of developing breast cancer, potentially indicative of women who are more susceptible to develop breast cancer after RRSO in BRCA1/2 mutation carriers.


Assuntos
Neoplasias da Mama/etiologia , Neoplasias da Mama/patologia , Genes BRCA1 , Genes BRCA2 , Heterozigoto , Imageamento por Ressonância Magnética , Mutação , Adulto , Idoso , Área Sob a Curva , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/cirurgia , Estudos de Coortes , Feminino , Humanos , Aumento da Imagem , Pessoa de Meia-Idade , Modelos Estatísticos , Ovariectomia , Curva ROC , Estudos Retrospectivos , Medição de Risco , Salpingostomia
14.
Clin Cancer Res ; 21(5): 995-1001, 2015 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-25501126

RESUMO

PURPOSE: The G1-S checkpoint of the cell cycle is frequently dysregulated in breast cancer. Palbociclib (PD0332991) is an oral inhibitor of CDK4/6. Based upon preclinical/phase I activity, we performed a phase II, single-arm trial of palbociclib in advanced breast cancer. EXPERIMENTAL DESIGN: Eligible patients had histologically confirmed, metastatic breast cancer positive for retinoblastoma (Rb) protein and measureable disease. Palbociclib was given at 125 mg orally on days 1 to 21 of a 28-day cycle. Primary objectives were tumor response and tolerability. Secondary objectives included progression-free survival (PFS) and assessment of Rb expression/localization, KI-67, p16 loss, and CCND1 amplification. RESULTS: Thirty-seven patients were enrolled; 84% hormone-receptor (HR)(+)/Her2(-), 5% HR(+)/Her2(+), and 11% HR(-)/Her2(-), with a median of 2 prior cytotoxic regimens. Two patients had partial response (PR) and 5 had stable disease ≥ 6 months for a clinical benefit rate (CBR = PR + 6moSD) of 19% overall, 21% in HR(+), and 29% in HR(+)/Her2(-) who had progressed through ≥2 prior lines of hormonal therapy. Median PFS overall was 3.7 months [95% confidence interval (CI), 1.9-5.1], but significantly longer for those with HR(+) versus HR(-) disease (P = 0.03) and those who had previously progressed through endocrine therapy for advanced disease (P = 0.02). Grade 3/4 toxicities included neutropenia (51%), anemia (5%), and thrombocytopenia (22%). Twenty-four percent had treatment interruption and 51% had dose reduction, all for cytopenias. No biomarker identified a sensitive tumor population. CONCLUSIONS: Single-agent palbociclib is well tolerated and active in patients with endocrine-resistant, HR(+), Rb-positive breast cancer. Cytopenias were uncomplicated and easily managed with dose reduction.


Assuntos
Antineoplásicos/uso terapêutico , Neoplasias da Mama/patologia , Piperazinas/uso terapêutico , Inibidores de Proteínas Quinases/uso terapêutico , Piridinas/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Biomarcadores/metabolismo , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/metabolismo , Neoplasias da Mama/mortalidade , Quinase 4 Dependente de Ciclina/antagonistas & inibidores , Quinase 6 Dependente de Ciclina/antagonistas & inibidores , Feminino , Humanos , Pessoa de Meia-Idade , Piperazinas/administração & dosagem , Piperazinas/efeitos adversos , Prognóstico , Inibidores de Proteínas Quinases/administração & dosagem , Inibidores de Proteínas Quinases/efeitos adversos , Piridinas/administração & dosagem , Piridinas/efeitos adversos , Proteína do Retinoblastoma/metabolismo , Retratamento , Resultado do Tratamento
15.
Am J Health Syst Pharm ; 71(7): 571-8, 2014 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-24644117

RESUMO

PURPOSE: Results of a survey regarding shortages of injectable oncology drugs in U.S. hospitals and health systems are presented. METHODS: An online survey was sent to all members of the American Society of Health-System Pharmacists self-identified as directors of pharmacy. Survey participants provided information on the extent to which their facilities were affected by oncology drug shortages, strategies for responding to shortages, and the effects of shortages on costs, patient safety, and outcomes. RESULTS: Ninety-eight percent of the 358 survey respondents reported at least one drug shortage during the previous 12 months, with 70% reporting instances of an inadequate supply to treat patients and 63% reporting that their facility had completely run out of at least one injectable oncology drug. Sixty-two percent of respondents reported using alternative drug regimens due to shortages; 46% reported drug dosage changes, 43% reported treatment delays, and 21% reported patient referrals to or from other facilities as a result of shortages. Survey respondents indicated the use of various strategies to manage oncology drug shortages (e.g., increasing inventories of certain drugs, identifying alternatives and substitution protocols, altered purchasing practices), all of which have led to cost increases. Twenty-five percent of respondents reported safety events resulting from oncology drug shortages. Only 40% of respondents agreed that currently available information is useful in mitigating the effects of shortages. CONCLUSION: Shortages of injectable oncology drugs appear to be widespread and to be having a significant impact on patient care. Currently available information about shortages does not meet administrative or clinical needs.


Assuntos
Antineoplásicos/provisão & distribuição , Assistência ao Paciente , Custos de Medicamentos , Humanos , Injeções
16.
J Genet Couns ; 21(5): 676-83, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22790832

RESUMO

Low rates of genetic counseling among African American women have generated concerns about disparities; however, to the extent that women's decisions to accept or decline counseling are consistent with their values, then lower participation may reflect preferences and not disparities. We evaluated the extent to which women were satisfied with their decision about participating in genetic counseling for BRCA1/2 mutations and identified variables that were associated significantly with satisfaction. Prospective study of decision satisfaction with 135 African American women who had a minimum 5% prior probability of having a BRCA1/2 mutation. Decision satisfaction was evaluated one month after women were offered participation in genetic counseling using a structured questionnaire. Women were satisfied with their participation decision; more than 80% reported that their decision was consistent with their family values. However, women who declined pre-test counseling had significantly lower satisfaction scores. Our findings highlight the importance ensuring that racial differences that are due to preferences and values are not misclassified as disparities in order to identify and address the root causes of disparate treatment.


Assuntos
População Negra , Genes BRCA1 , Genes BRCA2 , Aconselhamento Genético , Mutação , Neoplasias da Mama/genética , Feminino , Predisposição Genética para Doença , Humanos , Neoplasias Ovarianas/genética , Satisfação do Paciente
17.
Cancer Res ; 69(17): 7030-7, 2009 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-19706752

RESUMO

Unequivocal discrimination between neutral variants and deleterious mutations is crucial for appropriate counseling of individuals with a BRCA1 or BRCA2 sequence change. An increasing number of variants of uncertain significance (VUS) are being identified, the unclassified biological effect of which poses clinical concerns. A multifactorial likelihood-based approach recently suggested disease causality for BRCA1 p.V1688del, a VUS recurrent in Italian breast/ovarian cancer families. Whether and how this single amino acid deletion in the BRCA1 COOH terminus (BRCT) domain affects the function of the mutant protein (DeltaValBRCA1) has not been elucidated. We undertook comprehensive functional characterization of DeltaValBRCA1, comprising comparative structural modeling, analysis of protein stability and associations, and analysis of DNA repair function. Our model predicted BRCT domain destabilization and folding disruption caused by BRCA1 p.V1688del. Consistently, the recombinant DeltaValBRCA1 was less stable than wild-type BRCA1 and, unlike the latter, failed to associate with BRIP1, CtIP, and Rap80 and to relocalize to sites of DNA damage. Yeast two-hybrid analysis revealed a compromised interaction with FHL2 and KPNA2, which is likely responsible for improper subcellular localization of DeltaValBRCA1. In addition, we found four new breast/ovarian cancer families of Italian ancestry who carried this sequence alteration. These results provide the first evidence of the effect of BRCA1 p.V1688del on protein stability and function, supporting the view that it is a deleterious mutation. Multimodal analyses like ours could advance understanding of tumor suppression by BRCA1 and ultimately contribute to developing efficient strategies for screening and characterization of VUS.


Assuntos
Proteína BRCA1/genética , Neoplasias da Mama/genética , Modelos Moleculares , Mutação , Substituição de Aminoácidos , Proteína BRCA1/química , Proteína BRCA1/metabolismo , Proteína BRCA2/química , Proteína BRCA2/genética , Neoplasias da Mama/metabolismo , Feminino , Predisposição Genética para Doença , Proteínas de Homeodomínio/química , Proteínas de Homeodomínio/genética , Proteínas de Homeodomínio/metabolismo , Humanos , Proteínas com Homeodomínio LIM , Proteínas Musculares/química , Proteínas Musculares/genética , Proteínas Musculares/metabolismo , Ligação Proteica , Dobramento de Proteína , Estabilidade Proteica , Proteínas Recombinantes/química , Proteínas Recombinantes/genética , Proteínas Recombinantes/metabolismo , Fatores de Transcrição/química , Fatores de Transcrição/genética , Fatores de Transcrição/metabolismo
18.
Breast J ; 15(1): 4-16, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19141130

RESUMO

A consensus conference including thirty experts was held in April, 2007, to discuss risk factors for breast cancer and their management. Four categories of risk were outlined, from breast cancer "average" through "very high" risk, the latter including individuals with high penetrance BRCA1/2 gene mutations. Guidelines for management of patients in each of these categories were discussed, with the major portion of the conference being devoted to individuals with BRCA1/2 mutations. Prevalence of these mutations in the general populations was estimated to be 1 in 250-500 individuals, with an increased prevalence in Ashkenazic Jews and other founder groups. Risk reduction strategies for these individuals include surveillance, with or without chemoprevention drugs, or surgical procedures to remove the organs at risk, i.e., bilateral mastectomy and/or bilateral salpingo-oophorectomy. These risk reduction strategies were evaluated fully, and recommendations were made for the care of patients in each of the risk categories. These guidelines for patient care were approved by the entire group of experts.


Assuntos
Neoplasias da Mama/etiologia , Neoplasias da Mama/genética , Gestão de Riscos , Terapia de Reposição de Estrogênios/efeitos adversos , Feminino , Genes BRCA1 , Genes BRCA2 , Genes p53 , Aconselhamento Genético , Humanos , Mutação , PTEN Fosfo-Hidrolase/genética , Fatores de Risco
19.
Cancer ; 113(10): 2627-37, 2008 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-18853415

RESUMO

A consensus conference including 30 experts was held in April, 2007, to discuss risk factors for breast cancer and their management. Four categories of risk were outlined, from "average" through "very high" risk, the latter including individuals with high penetrance BRCA1/2 gene mutations. Guidelines for management of patients in each of these categories were discussed, with the major portion of the conference devoted to individuals with BRCA1/2 mutations. Prevalence of these mutations in the general population was estimated to be 1 in 250-500 individuals, with an increased prevalence in Ashkenazi Jews and other founder groups. Risk-reduction strategies for these individuals included surveillance, with or without chemoprevention drugs, or surgical procedures to remove the organs at risk, ie, bilateral mastectomy and/or bilateral salpingo-oophorectomy. These risk reduction strategies were evaluated fully, and recommendations were made for the care of patients in each risk category. These guidelines for patient care were approved by the entire group of experts.


Assuntos
Neoplasias da Mama/epidemiologia , Neoplasias da Mama/genética , Predisposição Genética para Doença , Neoplasias da Mama/cirurgia , Feminino , Genes BRCA1 , Genes BRCA2 , Humanos , Mutação , Prevalência , Fatores de Risco , Gestão de Riscos
20.
Patient Educ Couns ; 63(1-2): 196-204, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16533589

RESUMO

OBJECTIVE: The objective of this study was to evaluate satisfaction with genetic counseling for BRCA1 and BRCA2 (BRCA1/2) mutations among African American women. METHODS: Participants were 54 African American women at moderate and high risk for BRCA1/2 mutations who were offered genetic testing as part of a randomized clinical trial designed to compare the effects of culturally tailored genetic counseling (CTGC) and standard genetic counseling (SGC). Satisfaction with genetic counseling was evaluated using a self-administered questionnaire following culturally tailored or standard pre-test education and counseling. RESULTS: Overall, the majority of women (96%) were very satisfied with genetic counseling; however, only 26% reported that their worries were lessened and 22% reported that they were able to cope better. Women who received CTGC were significantly more likely than women who received SGC to report that their worries were lessened (p<0.05). In addition, women with household incomes less than US$ 35,000 were significantly more likely to report that the counselor lessened their worries compared to women with higher incomes (p<0.05). CONCLUSIONS: Most African American women were satisfied with genetic counseling; however, women who received culturally tailored genetic counseling were significantly more likely to strongly agree that their worries were lessened compared to women who received standard genetic counseling. PRACTICE IMPLICATIONS: Discussion of cultural beliefs and values during genetic counseling may be beneficial to African American women, especially those with low incomes.


Assuntos
Negro ou Afro-Americano/etnologia , Genes BRCA1 , Genes BRCA2 , Aconselhamento Genético , Mutação/genética , Satisfação do Paciente/etnologia , Mulheres/psicologia , Adulto , Negro ou Afro-Americano/educação , Negro ou Afro-Americano/genética , Neoplasias da Mama/genética , Diversidade Cultural , Feminino , Aconselhamento Genético/métodos , Aconselhamento Genético/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Necessidades e Demandas de Serviços de Saúde , Humanos , Renda , Pessoa de Meia-Idade , Neoplasias Ovarianas/genética , Planejamento de Assistência ao Paciente/organização & administração , Pennsylvania , Estudos Prospectivos , Fatores de Risco , Inquéritos e Questionários , Mulheres/educação
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