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2.
J Clin Oncol ; 41(7): 1470-1491, 2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-36603169

RESUMO

PURPOSE: To develop recommendations involving targeted therapies for patients with advanced gastroesophageal cancer. METHODS: The American Society of Clinical Oncology convened an Expert Panel to conduct a systematic review of relevant studies and develop recommendations for clinical practice. RESULTS: Eighteen randomized controlled trials met the inclusion criteria for the systematic review. RECOMMENDATIONS: For human epidermal growth factor receptor 2 (HER2)-negative patients with gastric adenocarcinoma (AC) and programmed death-ligand 1 (PD-L1) combined positive score (CPS) ≥ 5, first-line therapy with nivolumab and chemotherapy (CT) is recommended. For HER2-negative patients with esophageal or gastroesophageal junction (GEJ) AC and PD-L1 CPS ≥ 5, first-line therapy with nivolumab and CT is recommended. First-line therapy with pembrolizumab and CT is recommended for HER2-negative patients with esophageal or GEJ AC and PD-L1 CPS ≥ 10. For patients with esophageal squamous cell carcinoma and PD-L1 tumor proportion score ≥ 1%, nivolumab plus CT, or nivolumab plus ipilimumab is recommended; for patients with esophageal squamous cell carcinoma and PD-L1 CPS ≥ 10, pembrolizumab plus CT is recommended. For patients with HER2-positive gastric or GEJ previously untreated, unresectable or metastatic AC, trastuzumab plus pembrolizumab is recommended, in combination with CT. For patients with advanced gastroesophageal or GEJ AC whose disease has progressed after first-line therapy, ramucirumab plus paclitaxel is recommended. For HER2-positive patients with gastric or GEJ AC who have progressed after first-line therapy, trastuzumab deruxtecan is recommended. In all cases, participation in a clinical trial is recommended as it is the panel's expectation that targeted treatment options for gastroesophageal cancer will continue to evolve.Additional information is available at www.asco.org/gastrointestinal-cancer-guidelines.


Assuntos
Neoplasias Esofágicas , Carcinoma de Células Escamosas do Esôfago , Neoplasias Gástricas , Humanos , Neoplasias Esofágicas/patologia , Nivolumabe/uso terapêutico , Antígeno B7-H1/metabolismo , Carcinoma de Células Escamosas do Esôfago/patologia , Neoplasias Gástricas/patologia , Junção Esofagogástrica/patologia , Imunoterapia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico
3.
Arch Pathol Lab Med ; 146(10): 1194-1210, 2022 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-35920830

RESUMO

CONTEXT.­: The US Food and Drug Administration (FDA) approved immune checkpoint inhibitor therapy for patients with advanced solid tumors that have DNA mismatch repair defects or high levels of microsatellite instability; however, the FDA provided no guidance on which specific clinical assays should be used to determine mismatch repair status. OBJECTIVE.­: To develop an evidence-based guideline to identify the optimal clinical laboratory test to identify defects in DNA mismatch repair in patients with solid tumor malignancies who are being considered for immune checkpoint inhibitor therapy. DESIGN.­: The College of American Pathologists convened an expert panel to perform a systematic review of the literature and develop recommendations. Using the National Academy of Medicine-endorsed Grading of Recommendations Assessment, Development and Evaluation approach, the recommendations were derived from available evidence, strength of that evidence, open comment feedback, and expert panel consensus. Mismatch repair immunohistochemistry, microsatellite instability derived from both polymerase chain reaction and next-generation sequencing, and tumor mutation burden derived from large panel next-generation sequencing were within scope. RESULTS.­: Six recommendations and 3 good practice statements were developed. More evidence and evidence of higher quality were identified for colorectal cancer and other cancers of the gastrointestinal (GI) tract than for cancers arising outside the GI tract. CONCLUSIONS.­: An optimal assay depends on cancer type. For most cancer types outside of the GI tract and the endometrium, there was insufficient published evidence to recommend a specific clinical assay. Absent published evidence, immunohistochemistry is an acceptable approach readily available in most clinical laboratories.


Assuntos
Neoplasias Colorretais , Instabilidade de Microssatélites , Feminino , Humanos , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Reparo de Erro de Pareamento de DNA/genética , Inibidores de Checkpoint Imunológico , Patologistas , Patologia Molecular/métodos , Revisões Sistemáticas como Assunto
4.
PLoS One ; 16(11): e0258878, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34762658

RESUMO

BACKGROUND: Adenomas and serrated lesions represent heterogeneous sets of early precursors in the colorectum with varying malignant potential. They are often distinguished by their histopathologic differences, but little is known about potential differences in regulation of epithelial proliferation and apoptosis. METHODS: We conducted a protein expression analysis using tissue microarrays of 625 colorectal adenomas and 142 serrated lesions to determine potential differences in regulation of epithelial proliferation and apoptosis. We quantitated proliferation with Ki-67; apoptosis with activated caspase-3 (CASP3); up- and down-regulators of proliferation with cyclin D1, p16INK2, and p21Cip1; and apoptosis regulators with BAX, BCL2, and survivin. Linear mixed effects models and circos diagrams were used to determine relationships among expression and lesion characteristics. RESULTS: Adenomas had a significantly higher CASP-3 labeling index (LI) than serrated lesions, resulting in a lower net growth ratio (Ki-67 LI/activated CASP-3 LI, p-value<0.0001). Cyclin D1 LI, p16 LI and p21 LI were lower in adenomas compared to serrated lesions, while expression of both BCL2 and BAX were higher (p <0.001). Among adenomas, cyclin D1 LI and p16 LI levels increased with greater villous component, and the highest BAX expression was detected in adenomas larger than 2 cm (both p<0.0001). Right-sided adenomas had higher CASP3 LI than left colorectal adenomas (p = 0.008). Significant differences in cyclin D1 LI, p21 LI and survivin LI were also observed across histopathologic subtypes of serrated lesions. CONCLUSIONS: Our findings demonstrate different patterns of regulatory protein expression in adenomas than serrated lesions, especially involving apoptosis. ClinicalTrials.gov Identifier: NCT00272324.


Assuntos
Adenoma/patologia , Apoptose , Neoplasias Colorretais/patologia , Idoso , Proliferação de Células , Neoplasias Colorretais/metabolismo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Proteínas de Neoplasias/metabolismo
5.
Endosc Int Open ; 8(6): E717-E721, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32490154

RESUMO

Background and study aims Endoscopic resection is recommended as initial treatment for early-stage gastric and duodenal neuroendocrine tumors (G-NETs and D-NETs). However, it can cause serious adverse events. We aimed to evaluate the efficacy and safety of the band and slough (BAS) technique as a novel and less aggressive endoscopic therapy for management of such tumors. Four patients, three diagnosed with < 10-mm D-NET and one with 10-mm type I G-NET, were treated with the BAS technique without endoscopic resection. Initial follow-up endoscopy at 3 months was done to assess for residual tumor. Subsequent endoscopic surveillance was performed. After one session of banding, all patients achieved complete remission at 3-month follow-up. No tumor recurrence was detected on repeat biopsy at 12-month surveillance endoscopy. None of the patients developed any adverse events including bleeding or perforation. The BAS technique may prove to be a safe and effective endoscopic therapy for diminutive, non-metastatic type 1 G-NETs and D-NETs. Studies of larger scale and longer follow-up periods are needed to corroborate these findings.

6.
BMJ Open Respir Res ; 6(1): e000395, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31673360

RESUMO

Introduction: People living with HIV (PLWH) are more likely to smoke than the general population and are at greater risk of smoking-related illness. Healthcare services need to address this burden of preventable disease. Methods: We evaluated the impact of a brief intervention that asked service users about smoking when they attended for ambulatory HIV care in London, UK, and offered referral to smoking cessation. Results: Overall, 1548 HIV-positive individuals were asked about their smoking status over a 12-month period. Of this group, 385 (25%) reported that they were current smokers, 372 (97%) were offered referral to smoking cessation services and 154 (40%) accepted this. We established an outcome of referral for 114 (74%) individuals. A total of 36 (10% of smokers) attended stop smoking clinics and 16 (4%) individuals were recorded as having quit smoking. Discussion: The simple intervention of asking PLWH about tobacco smoking and offering referral to smoking cessation services rapidly identified current smokers, 40% of whom accepted referral to smoking cessation services. This highlights the importance of promoting behaviour and lifestyle changes with every contact with health services. However, a large proportion of those referred were either not seen in local services or the outcome of referral could not be ascertained. If the risk of smoking-related morbidity among PLWH is to be reduced, more sustainable referral pathways and ways of improving uptake of smoking cessation services must be developed.


Assuntos
Assistência Ambulatorial , Atenção à Saúde/estatística & dados numéricos , Infecções por HIV , Encaminhamento e Consulta/estatística & dados numéricos , Abandono do Hábito de Fumar , Fumar/terapia , Adulto , Feminino , Infecções por HIV/complicações , Humanos , Londres , Masculino , Pessoa de Meia-Idade , Fatores de Risco
7.
Arch Pathol Lab Med ; 143(10): 1203-1211, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-30969158

RESUMO

CONTEXT.­: The performance of laboratory testing has recently come under increased scrutiny as part of important and ongoing debates on regulation and reimbursement. To address this critical issue, this study compares the performance of assay methods, using either commercial kits or assays designed and implemented by single laboratories ("home brews"), including next-generation sequencing methods, on proficiency testing provided by the College of American Pathologists Molecular Oncology Committee. OBJECTIVE.­: To compare the performance of different assay methods on College of American Pathologists proficiency testing for variant analysis of 3 common oncology analytes: BRAF, EGFR, and KRAS. DESIGN.­: There were 6897 total responses across 35 different proficiency testing samples interrogating 13 different variants as well as wild-type sequences for BRAF, EGFR, and KRAS. Performance was analyzed by test method, kit manufacturer, variants tested, and preanalytic and postanalytic practices. RESULTS.­: Of 26 reported commercial kits, 23 achieved greater than 95% accuracy. Laboratory-developed tests with no kit specified demonstrated 96.8% or greater accuracy across all 3 analytes (1123 [96.8%] acceptable of 1160 total responses for BRAF; 848 [97.5%] acceptable of 870 total responses for EGFR; 942 [97.0%] acceptable of 971 total responses for KRAS). Next-generation sequencing platforms (summed across all analytes and 2 platforms) demonstrated 99.4% accuracy for these analytes (165 [99.4%] acceptable of 166 total next-generation sequencing responses). Slight differences in performance were noted among select commercial assays, dependent upon the particular design and specificity of the assay. Wide differences were noted in the lower limits of neoplastic cellularity laboratories accepted for testing. CONCLUSIONS.­: These data demonstrate the high degree of accuracy and comparable performance across all laboratories, regardless of methodology. However, care must be taken in understanding the diagnostic specificity and reported analytic sensitivity of individual methods.


Assuntos
Laboratórios/normas , Ensaio de Proficiência Laboratorial/estatística & dados numéricos , Kit de Reagentes para Diagnóstico/normas , Confiabilidade dos Dados , Receptores ErbB/genética , Sequenciamento de Nucleotídeos em Larga Escala/normas , Humanos , Oncologia , Mutação , Patologistas , Patologia Molecular , Proteínas Proto-Oncogênicas B-raf/genética , Proteínas Proto-Oncogênicas p21(ras)/genética , Sensibilidade e Especificidade
8.
J Public Health (Oxf) ; 40(4): e545-e551, 2018 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-29635521

RESUMO

Background: UK hospitals have been criticized for fuelling obesity by allowing contracts with food retailers selling high fat and high-sugar products on hospital premises. Methods: We assessed the impact for a major retailer of increasing healthy food choices at their Royal Free London NHS Foundation Trust outlet. To assess the impact on sales, profit and acceptability to customers, a multi-component intervention based on behavioural insights theory was enacted over 2 months (November-December 2014) at the Royal Free site WHSmith. Sales data on all food and drink were assessed over three time periods: (i) 2 months immediately prior to, and (ii) immediately after the intervention, and (iii) the equivalent period 10 months later. Acceptability to customers was assessed via questionnaires, and profit assessed as a proxy for retailer satisfaction. Results: Compared to the pre-intervention period, total sales increased immediately after the intervention, and again 10 months after the intervention. Sales of healthier options increased as a proportion of total sales following the intervention, sales of sweets and chocolates decreased, while the relative sales of other items remained similar. Conclusions: We demonstrated that healthier alternatives could be provided in a hospital retail premises without negatively affecting total sales, retailer or customer satisfaction.


Assuntos
Alimentos , Lojas no Hospital , Obesidade/prevenção & controle , Comportamento do Consumidor , Alimentos/efeitos adversos , Alimentos/economia , Alimentos/estatística & dados numéricos , Lojas no Hospital/economia , Lojas no Hospital/métodos , Humanos , Londres , Lanches
9.
JAMA Oncol ; 4(6): 838-841, 2018 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-29242895

RESUMO

Importance: The debate about the role of the Food and Drug Administration (FDA) in the regulation of laboratory-developed tests (LDTs) has focused attention on the analytical performance of all clinical laboratory testing. This study provides data comparing the performance of LDTs and FDA-approved companion diagnostics (FDA-CDs) in proficiency testing (PT) provided by the College of American Pathologists Molecular Oncology Committee. Objective: To compare the analytical performance of LDTs and FDA-CDs on well-characterized PT samples and to compare the practice characteristics of laboratories using these assays. Design, Setting, and Participants: This comparison of PT responses examines the performance of laboratories participating in the College of American Pathologists PT for 3 oncology analytes for which both FDA-CDs and LDTs are used: BRAF, EGFR, and KRAS. A total of 6897 PT responses were included: BRAF (n = 2524; 14 PT samples), EGFR (n = 2216; 11 PT samples), and KRAS (n = 2157, 10 PT samples). US Food and Drug Administration companion diagnostics and LDTs are compared for both accuracy and preanalytic practices of the laboratories. Main Outcomes and Measures: As per the College of American Pathologists PT standards, results were scored and the percentages of acceptable responses for each analyte were compared. These were also broken down by the specific variants tested, by kit manufacturer for laboratories using commercial reagents, and by preanalytic practices. Results: From analysis of 6897 PT responses, this study demonstrates that both LDTs and FDA-CDs have excellent performance overall, with both test types exceeding 97% accuracy for all 3 genes (BRAF, EGFR, and KRAS) combined. Rare variant-specific differences did not consistently favor LDTs or FDA-CDs. Additionally, more than 60% of participants using an FDA-CD reported adapting their assay from the approved procedure to allow for a greater breadth of sample types, minimum tumor content, and instrumentation, changing the classification of their assay from FDA-CD to LDT. Conclusions: This study demonstrates the high degree of accuracy and comparable performance of both LDTs and FDA-CDs for 3 oncology analytes. More significantly, the majority of laboratories using FDA-CDs have modified the scope of their assay to allow for more clinical practice variety, rendering them LDTs. These findings support both the excellent and equivalent performance of both LDTs and FDA-CDs in clinical diagnostic testing.


Assuntos
Biomarcadores Tumorais/análise , Ensaio de Proficiência Laboratorial , Neoplasias/química , Proteínas Proto-Oncogênicas B-raf/análise , Proteínas Proto-Oncogênicas p21(ras)/análise , DNA de Neoplasias/análise , DNA de Neoplasias/genética , Receptores ErbB/análise , Genes erbB-1 , Genes ras , Humanos , Neoplasias/patologia , Inclusão em Parafina , Proteínas Proto-Oncogênicas B-raf/genética , Fixação de Tecidos/métodos , Estados Unidos , United States Food and Drug Administration
10.
Arch Pathol Lab Med ; 141(12): 1679-1685, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29028368

RESUMO

CONTEXT: - Detection of acquired variants in cancer is a paradigm of precision medicine, yet little has been reported about clinical laboratory practices across a broad range of laboratories. OBJECTIVE: - To use College of American Pathologists proficiency testing survey results to report on the results from surveys on next-generation sequencing-based oncology testing practices. DESIGN: - College of American Pathologists proficiency testing survey results from more than 250 laboratories currently performing molecular oncology testing were used to determine laboratory trends in next-generation sequencing-based oncology testing. RESULTS: - These presented data provide key information about the number of laboratories that currently offer or are planning to offer next-generation sequencing-based oncology testing. Furthermore, we present data from 60 laboratories performing next-generation sequencing-based oncology testing regarding specimen requirements and assay characteristics. The findings indicate that most laboratories are performing tumor-only targeted sequencing to detect single-nucleotide variants and small insertions and deletions, using desktop sequencers and predesigned commercial kits. Despite these trends, a diversity of approaches to testing exists. CONCLUSIONS: - This information should be useful to further inform a variety of topics, including national discussions involving clinical laboratory quality systems, regulation and oversight of next-generation sequencing-based oncology testing, and precision oncology efforts in a data-driven manner.


Assuntos
Sequenciamento de Nucleotídeos em Larga Escala/métodos , Neoplasias/genética , Sequenciamento de Nucleotídeos em Larga Escala/normas , Sequenciamento de Nucleotídeos em Larga Escala/tendências , Humanos , Ensaio de Proficiência Laboratorial/métodos , Ensaio de Proficiência Laboratorial/normas , Ensaio de Proficiência Laboratorial/tendências , Oncologia/normas , Patologia Clínica/normas , Medicina de Precisão/métodos , Medicina de Precisão/normas , Medicina de Precisão/tendências , Sociedades Médicas , Inquéritos e Questionários , Estados Unidos
11.
Arch Pathol Lab Med ; 141(5): 658-665, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28447902

RESUMO

CONTEXT: - With enormous growth in the field of molecular pathology, the reporting of results gleaned from this testing is essential to guide patient care. OBJECTIVE: - To examine molecular reports from laboratories participating in proficiency testing for required elements to convey molecular laboratory test results to clinicians and patients. DESIGN: - Molecular laboratories participating in the College of American Pathologists (CAP) proficiency testing program for BRAF mutation analysis were solicited to submit examples of final reports from 2 separate proficiency testing reporting cycles. Reports were reviewed for the presence or absence of relevant components. RESULTS: - A total of 107 evaluable reports were received (57 demonstrating a positive result for the BRAF V600E mutation and 50 negative). Methods for BRAF testing varied, with 95% (102 of 107) of reports adequately describing their assay methods and 87% (93 of 107) of reports adequately describing the target(s) of their assays. Information on the analytic sensitivity of the assay was present in 74% (79 of 107) of reports and 83% (89 of 107) reported at least 1 assay limitation, though only 34% (36 of 107) reported on variants not detected by their assays. Analytic and clinical interpretive comments were included in 99% (106 of 107) and 90% (96 of 107) of reports, respectively. Of participants that perform a laboratory-developed test, 88% (88 of 100) included language addressing the development of the assay. CONCLUSIONS: - Laboratories participating in BRAF proficiency testing through the CAP are including most of the required reporting elements to unambiguously convey molecular results. Laboratories should continue to strive to report these results in a concise and comprehensive manner.


Assuntos
Patologia Clínica , Patologia Molecular , Proteínas Proto-Oncogênicas B-raf/genética , American Medical Association , Humanos , Laboratórios/normas , Ensaio de Proficiência Laboratorial/normas , Mutação , Projetos de Pesquisa , Relatório de Pesquisa , Sociedades Médicas , Estados Unidos
12.
J Clin Oncol ; 35(4): 446-464, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28129524

RESUMO

Context ERBB2 (erb-b2 receptor tyrosine kinase 2 or HER2) is currently the only biomarker established for selection of a specific therapy for patients with advanced gastroesophageal adenocarcinoma (GEA). However, there are no comprehensive guidelines for the assessment of HER2 in patients with GEA. Objectives To establish an evidence-based guideline for HER2 testing in patients with GEA, formalize the algorithms for methods to improve the accuracy of HER2 testing while addressing which patients and tumor specimens are appropriate, and to provide guidance on clinical decision making. Design The College of American Pathologists (CAP), American Society for Clinical Pathology (ASCP), and the American Society of Clinical Oncology (ASCO) convened an Expert Panel to conduct a systematic review of the literature to develop an evidence-based guideline with recommendations for optimal HER2 testing in patients with GEA. Results The Panel is proposing 11 recommendations with strong agreement from the open comment participants. Recommendations The Panel recommends that tumor specimen(s) from all patients with advanced GEA, who are candidates for HER2-targeted therapy, should be assessed for HER2 status before the initiation of HER2-targeted therapy. Clinicians should offer combination chemotherapy and an HER2-targeted agent as initial therapy for all patients with HER2-positive advanced GEA. For pathologists, guidance is provided for morphologic selection of neoplastic tissue, testing algorithms, scoring methods, interpretation and reporting of results, and laboratory quality assurance. Conclusion This guideline provides specific recommendations for assessment of HER2 in patients with advanced GEA while addressing pertinent technical issues and clinical implications of the results.


Assuntos
Adenocarcinoma , Biomarcadores Tumorais , Neoplasias Esofágicas , Junção Esofagogástrica , Receptor ErbB-2 , Neoplasias Gástricas , Humanos , Adenocarcinoma/enzimologia , Adenocarcinoma/patologia , Algoritmos , Biomarcadores Tumorais/análise , Neoplasias Esofágicas/enzimologia , Neoplasias Esofágicas/patologia , Junção Esofagogástrica/enzimologia , Junção Esofagogástrica/patologia , Receptor ErbB-2/análise , Neoplasias Gástricas/enzimologia , Neoplasias Gástricas/patologia , Revisões Sistemáticas como Assunto
14.
Arch Pathol Lab Med ; 140(12): 1345-1363, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27841667

RESUMO

CONTEXT: - ERBB2 (erb-b2 receptor tyrosine kinase 2 or HER2) is currently the only biomarker established for selection of a specific therapy for patients with advanced gastroesophageal adenocarcinoma (GEA). However, there are no comprehensive guidelines for the assessment of HER2 in patients with GEA. OBJECTIVES: - To establish an evidence-based guideline for HER2 testing in patients with GEA, to formalize the algorithms for methods to improve the accuracy of HER2 testing while addressing which patients and tumor specimens are appropriate, and to provide guidance on clinical decision making. DESIGN: - The College of American Pathologists, American Society for Clinical Pathology, and American Society of Clinical Oncology convened an expert panel to conduct a systematic review of the literature to develop an evidence-based guideline with recommendations for optimal HER2 testing in patients with GEA. RESULTS: - The panel is proposing 11 recommendations with strong agreement from the open-comment participants. RECOMMENDATIONS: - The panel recommends that tumor specimen(s) from all patients with advanced GEA, who are candidates for HER2-targeted therapy, should be assessed for HER2 status before the initiation of HER2-targeted therapy. Clinicians should offer combination chemotherapy and a HER2-targeted agent as initial therapy for all patients with HER2-positive advanced GEA. For pathologists, guidance is provided for morphologic selection of neoplastic tissue, testing algorithms, scoring methods, interpretation and reporting of results, and laboratory quality assurance. CONCLUSIONS: - This guideline provides specific recommendations for assessment of HER2 in patients with advanced GEA while addressing pertinent technical issues and clinical implications of the results.


Assuntos
Adenocarcinoma , Neoplasias Esofágicas , Medicina Baseada em Evidências , Técnicas de Diagnóstico Molecular , Mutação , Receptor ErbB-2 , Neoplasias Gástricas , Humanos , Adenocarcinoma/diagnóstico , Adenocarcinoma/genética , Adenocarcinoma/metabolismo , Adenocarcinoma/terapia , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/metabolismo , Tomada de Decisão Clínica , Terapia Combinada , Árvores de Decisões , Diagnóstico Diferencial , Neoplasias Esofágicas/diagnóstico , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/metabolismo , Neoplasias Esofágicas/terapia , Oncologia/métodos , Oncologia/tendências , Técnicas de Diagnóstico Molecular/normas , Terapia de Alvo Molecular , Gradação de Tumores , Estadiamento de Neoplasias , Patologia Clínica/métodos , Patologia Clínica/tendências , Receptor ErbB-2/antagonistas & inibidores , Receptor ErbB-2/genética , Receptor ErbB-2/metabolismo , Sociedades Médicas , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/genética , Neoplasias Gástricas/metabolismo , Neoplasias Gástricas/terapia , Estados Unidos , Revisões Sistemáticas como Assunto
15.
Cancer Prev Res (Phila) ; 9(12): 942-949, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27658891

RESUMO

Colorectal cancer and adenoma adjacent to cancer exhibit distinct microRNA (miRNA) alterations in an apparent mucosa-to-adenocarcinoma sequence. The pattern of microRNAs in screen-detected polyps in relation to histologic features and cancer risk has not been investigated. miRNA expression analysis was performed on normal mucosa (NM), hyperplastic polyps (HP), tubular adenomas (TA), tubulovillous adenomas or high-grade dysplasia (TVHG), and serrated polyps [sessile serrated adenoma/polyps (SSA/P) and traditional serrated adenomas (TSA)] in biopsy specimens from 109 patients undergoing screening/surveillance colonoscopy. Generalized linear models were used to identify differentially expressed miRNAs by histologic type and logistic regression to identify miRNA predictors of histopathology. False discovery rate (FDR) was used to control for multiple comparisons. We identified 99 miRNAs differing in at least one of five histopathologic groups (FDR ≤0.05). In a comparison of HPNM versus TVHG, the top most upregulated and downregulated miRNAs in HPNM included miR-145, -143, -107, -194, and -26a (upregulated), and miR-663, -1268, -320b, -1275, and -320b (downregulated; FDR P < 0.05). miR-145 and -619 showed high accuracy to discriminate low- from high-risk polyps without serrated histology (TVHG vs. HPNM + TA; CI, 95.6%), whereas miR-124, -143, and -30a showed high accuracy of separating high-risk polyps (TVHG + TSA) from low-risk polyps (HPNM + TA + SSA/P; CI, 96.0%). For TSAs, miR-125b and -199a were uniquely downregulated relative to HPNMs, and miR-335, -222, and -214 discriminated between non-serrated and serrated histology. Our data support the presence of colorectal cancer-associated miRNA alterations in screen-detected adenomas that may be useful for risk stratification for surveillance interval planning. Cancer Prev Res; 9(12); 942-9. ©2016 AACR.


Assuntos
Adenoma/genética , Adenoma/patologia , Pólipos do Colo/genética , Pólipos do Colo/patologia , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , MicroRNAs/genética , Adenoma/diagnóstico , Idoso , Pólipos do Colo/diagnóstico , Colonoscopia , Neoplasias Colorretais/diagnóstico , Detecção Precoce de Câncer/métodos , Feminino , Perfilação da Expressão Gênica/métodos , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Risco
17.
BMJ Open ; 6(1): e009069, 2016 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-26729380

RESUMO

OBJECTIVES: Domestic violence screening is advocated in some healthcare settings. Evidence that it increases referral to support agencies or improves health outcomes is limited. This study aimed to (1) investigate the proportion of hospital patients reporting domestic violence, (2) describe characteristics and previous hospital attendances of affected patients and (3) assess referrals to an in-house domestic violence advisor from Camden Safety Net. DESIGN: A series of observational studies. SETTING: Three outpatient clinics at the Royal Free London NHS Foundation Trust. PARTICIPANTS: 10,158 patients screened for domestic violence in community gynaecology, genitourinary medicine (GUM) and HIV medicine clinics between 1 October 2013 and 30 June 2014. Also 2253 Camden Safety Net referrals over the same period. MAIN OUTCOME MEASURES: (1) Percentage reporting domestic violence by age group gender, ethnicity and clinic. (2) Rates of hospital attendances in the past 3 years for those screening positive and negative. (3) Characteristics, uptake and risk assessment results for hospital in-house domestic violence referrals compared with Camden Safety Net referrals from other sources. RESULTS: Of the 10,158 patients screened, 57.4% were female with a median age of 30 years. Overall, 7.1% reported ever-experiencing domestic violence, ranging from 5.7% in GUM to 29.4% in HIV services. People screening positive for domestic violence had higher rates of previous emergency department attendances (rate ratio (RR) 1.63, 95% CI 1.09 to 2.48), emergency inpatient admissions (RR 2.27, 95% CI 1.37 to 3.84) and day-case admissions (RR 2.03, 95% CI 1.23 to 3.43) than those screening negative. The 77 hospital referrals to the hospital-based domestic violence advisor during the study period were more likely to be taken up and to be classified as high risk than referrals from elsewhere. CONCLUSIONS: Selective screening for domestic violence in high-risk hospital clinic populations has the potential to identify affected patients and promote good uptake of referrals for in-house domestic violence support.


Assuntos
Violência Doméstica/estatística & dados numéricos , Serviço Hospitalar de Emergência/estatística & dados numéricos , Programas de Rastreamento/estatística & dados numéricos , Avaliação de Processos e Resultados em Cuidados de Saúde/estatística & dados numéricos , Encaminhamento e Consulta/estatística & dados numéricos , Adolescente , Adulto , Idoso , Violência Doméstica/prevenção & controle , Feminino , Humanos , Londres , Masculino , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Avaliação de Processos e Resultados em Cuidados de Saúde/métodos , Adulto Jovem
18.
Am J Clin Pathol ; 146(6): 647-669, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28077399

RESUMO

CONTEXT: ERBB2 (erb-b2 receptor tyrosine kinase 2 or HER2) is currently the only biomarker established for selection of a specific therapy for patients with advanced gastroesophageal adenocarcinoma (GEA). However, there are no comprehensive guidelines for the assessment of HER2 in patients with GEA. OBJECTIVES: To establish an evidence-based guideline for HER2 testing in patients with GEA, to formalize the algorithms for methods to improve the accuracy of HER2 testing while addressing which patients and tumor specimens are appropriate, and to provide guidance on clinical decision making. DESIGN: The College of American Pathologists, American Society for Clinical Pathology, and American Society of Clinical Oncology convened an expert panel to conduct a systematic review of the literature to develop an evidence-based guideline with recommendations for optimal HER2 testing in patients with GEA. RESULTS: The panel is proposing 11 recommendations with strong agreement from the open-comment participants. RECOMMENDATIONS: The panel recommends that tumor specimen(s) from all patients with advanced GEA, who are candidates for HER2-targeted therapy, should be assessed for HER2 status before the initiation of HER2-targeted therapy. Clinicians should offer combination chemotherapy and a HER2-targeted agent as initial therapy for all patients with HER2-positive advanced GEA. For pathologists, guidance is provided for morphologic selection of neoplastic tissue, testing algorithms, scoring methods, interpretation and reporting of results, and laboratory quality assurance. CONCLUSIONS: This guideline provides specific recommendations for assessment of HER2 in patients with advanced GEA while addressing pertinent technical issues and clinical implications of the results.


Assuntos
Adenocarcinoma/diagnóstico , Tomada de Decisão Clínica , Neoplasias Esofágicas/diagnóstico , Junção Esofagogástrica/patologia , Receptor ErbB-2/genética , Neoplasias Gástricas/diagnóstico , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/genética , Adenocarcinoma/patologia , Antineoplásicos/uso terapêutico , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/patologia , Testes Genéticos , Humanos , Oncologia , Neoplasias Gástricas/tratamento farmacológico , Neoplasias Gástricas/genética , Neoplasias Gástricas/patologia , Estados Unidos
19.
J Public Health (Oxf) ; 38(3): e292-e300, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-26476440

RESUMO

BACKGROUND: Lifestyle risk behaviours show an inverse social gradient, clustering in vulnerable groups. We designed and piloted an intervention to address barriers to lifestyle behaviour change among hospital patients. METHODS: We designed our intervention using effective components of behaviour change interventions informed by psychological theory. Delivered by a health psychologist based at the Royal Free London NHS Foundation Trust, the 4-week intervention included detailed baseline assessment, personalized goal setting, psychological skills development, motivation support and referral to community services. Primary outcomes were feasibility and patient acceptability. We also evaluated changes to health and well-being. RESULTS: From 1 July 2013 to 31 September 2014, 686 patients were referred, 338 (49.3%) attended a first appointment and 172 (25.1%) completed follow-up. Furthermore, 72.1% of attenders were female with the median age 55 years and poor self-reported baseline health. After 4 weeks, self-efficacy, health and well-being scores significantly improved: 63% of lifestyle goals and 89% of health management goals were fully achieved; 58% of referrals to community lifestyle behaviour change services and 79% of referrals to other services (e.g. Citizen's Advice Bureau) were accepted; 99% were satisfied/very satisfied with the service. CONCLUSIONS: Our hospital-based intervention was feasible, acceptable and showed preliminary health and well-being gains.


Assuntos
Promoção da Saúde/métodos , Hospitalização , Comportamento de Redução do Risco , Adulto , Idoso , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Motivação , Projetos Piloto
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