Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 4 de 4
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
Mol Oncol ; 17(9): 1908-1916, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37097008

RESUMO

Efficiency of expanded genomic profiling (EGP) programmes in terms of final inclusion of patients in genomically matched therapies is still unknown. Fit patients with advanced and refractory colorectal cancer (CRC) were selected for an EGP programme. Next-generation sequencing (NGS) analysis from formalin-fixed paraffin-embedded tumour samples was performed. The purpose was to describe the prevalence of genomic alterations defined by the ESMO Scale for Clinical Actionability of Molecular Targets (ESCAT), as well as the percentage of patients finally included in genomically guided clinical trials. In total, 187 patients were recruited. Mutational profile was obtained in 177 patients (10 patients were failure due to insufficient tumour sample), copy number alterations in 41 patients and fusions in 31 patients. ESCAT-defined alterations were detected in 28.8% of the intention-to-analyse population. BRAF V600E was clustered in ESCAT I, with a prevalence of 3.7%, KRAS G12C and ERBB2 amplification were clustered in ESCAT II, whose prevalence was 4.2% and 1.6%, respectively. Most alterations were classified in ESCAT III (mutations in ERBB2, PIK3CA or FGFR genes and MET amplification) and IV (mutations in BRAF non-V600E, ERBB3, FBXW7, NOTCH, RNF43), with a single prevalence under 5%, except for PIK3CA mutation (9%). The final rate of inclusion into genomically guided clinical trials was 2.7%, including therapies targeting BRAF V600E or RNF43 mutations in two patients each, and ERBB2 mutation in one patient. In conclusion, EGP programmes in patients with advanced CRC are feasible and identify a subset of patients with potentially druggable genomic alterations. However, further efforts must be made to increase the rate of patients treated with genomically guided therapies.


Assuntos
Neoplasias Colorretais , Proteínas Proto-Oncogênicas B-raf , Humanos , Proteínas Proto-Oncogênicas B-raf/genética , Neoplasias Colorretais/genética , Mutação/genética , Genômica , Sequenciamento de Nucleotídeos em Larga Escala
2.
BMC Pharmacol Toxicol ; 20(1): 68, 2019 11 21.
Artigo em Inglês | MEDLINE | ID: mdl-31753013

RESUMO

BACKGROUND: Eribulin improves survival in pre-treated HER2-negative advanced breast cancer (ABC). However, limited data exist on co-morbidities and central nervous system (CNS) efficacy. The purpose of this study was to review eribulin's efficacy and safety in everyday clinical practice with special focus on age, body mass index (BMI) and central nervous system (CNS) activity. METHODS: An observational study was conducted in a series of HER2-negative ABC patients treated from January'14-December'17 outside a clinical trial. Objective Response Rate (ORR), Progression Free Survival (PFS), Overall Survival (OS), and association of clinical and pathological variables with outcome were evaluated. RESULTS: Ninety-five women were treated with at least one cycle of eribulin. Median age was 57 (33-83), and 18% were obese. Median number of prior chemotherapies for ABC was 3 (2-5) and 76% of patients had visceral metastases, including 21% with CNS involvement. Most tumors were estrogen receptor-positive (79%). ORR and stable disease (SD) at 6 months were 26.2 and 37.5%, respectively. Remarkably, relevant CNS efficacy was observed with eribulin: 20% of patients obtained partial response and 25% SD. Treatment was generally well tolerated and manageable, with 29% grade 3 and 10.9% grade 4 toxicities. Median PFS and OS were 4.1 months (CI95% 3.2-4.9) and 11.1 months (CI95% 9.5-14.7), respectively. Triple-negative disease, > 2organs involved and being younger than 70 years old were independent prognosis factors for worse OS in multivariate analysis. Most patients (75%) progressed in pre-existing metastases sites. CONCLUSION: In everyday clinical practice, eribulin's efficacy seems similar to pivotal trials. CNS-efficacy was observed. TNBC, > 2 organs involved and being younger than 70 years old were independent prognosis factors for worse OS. Remarkably, less incidence of grade 4-toxicity compared to previous studies was found.


Assuntos
Antineoplásicos/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Furanos/uso terapêutico , Cetonas/uso terapêutico , Idoso , Antineoplásicos/efeitos adversos , Neoplasias da Mama/mortalidade , Institutos de Câncer , Feminino , Furanos/efeitos adversos , Humanos , Cetonas/efeitos adversos , Receptor ErbB-2 , Espanha , Análise de Sobrevida , Resultado do Tratamento
3.
Breast ; 18(4): 259-62, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19744626

RESUMO

Sunitinib malate (SUTENT) is an oral, multitargeted tyrosine kinase inhibitor that blocks several pathways central to angiogenesis and tumor cell proliferation and migration, including vascular endothelial growth factor receptors (VEGFRs) and platelet-derived growth factor receptors (PDGFRs). Sunitinib has demonstrated clinical activity as a single agent in patients with metastatic breast cancer and it is hypothesized that enhanced clinical benefit may be derived by combining sunitinib with chemotherapy or other targeted agents. The current report describes four patients with advanced/metastatic breast cancer who experienced clinically meaningful responses following treatment with sunitinib in combination with docetaxel.


Assuntos
Inibidores da Angiogênese/administração & dosagem , Antineoplásicos/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Carcinoma Ductal de Mama/tratamento farmacológico , Indóis/administração & dosagem , Pirróis/administração & dosagem , Taxoides/administração & dosagem , Adulto , Inibidores da Angiogênese/farmacocinética , Antineoplásicos/farmacocinética , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/diagnóstico por imagem , Carcinoma Ductal de Mama/patologia , Terapia Combinada , Docetaxel , Feminino , Humanos , Indóis/farmacocinética , Neoplasias Hepáticas/secundário , Excisão de Linfonodo , Mastectomia , Pessoa de Meia-Idade , Pirróis/farmacocinética , Sunitinibe , Taxoides/farmacocinética , Tomografia Computadorizada por Raios X
4.
Med Mycol ; 43(4): 365-71, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-16110783

RESUMO

Numerous patients were diagnosed with aspergillosis in a nosocomial outbreak caused by Aspergillus fumigatus and Aspergillus flavus. Thirty-three isolates of the former and 28 isolates of the latter were collected from the hospital environment and from the patients and studied for genetic relatedness by random amplified microsatellites (RAMS) analysis, in which two polymorphic regions were tested. Twenty-eight genotypes of A. fumigatus and 23 genotypes of A. flavus were identified. Four patients were infected by two isolates with the same genotype as the environmental isolates. One clinical genotype was shared by three patients and another was shared by two patients. We found that RAMS was useful for fingerprinting Aspergillus spp.


Assuntos
Aspergilose/epidemiologia , Aspergillus flavus/classificação , Aspergillus fumigatus/classificação , Infecção Hospitalar/epidemiologia , Repetições de Microssatélites/genética , Técnica de Amplificação ao Acaso de DNA Polimórfico , Idoso , Idoso de 80 Anos ou mais , Aspergilose/microbiologia , Aspergillus flavus/genética , Aspergillus fumigatus/genética , Infecção Hospitalar/microbiologia , Surtos de Doenças , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Epidemiologia Molecular , Técnicas de Tipagem Micológica , Quartos de Pacientes
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...