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1.
Lancet Oncol ; 20(4): 518-530, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30857956

RESUMO

BACKGROUND: Therapies targeting HER2 have improved clinical outcomes in HER2-positive breast and gastric cancers, and are emerging as potential treatments for HER2-positive metastatic colorectal cancer. MyPathway evaluates the activity of targeted therapies in non-indicated tumour types with potentially predictive molecular alterations. We aimed to assess the activity of pertuzumab and trastuzumab in patients with HER2-amplified metastatic colorectal cancer. METHODS: MyPathway is an ongoing, phase 2a, multiple basket study. Patients in this subset analysis were aged 18 years or older and had treatment-refractory, histologically confirmed HER2-amplified metastatic colorectal cancer with measurable or evaluable disease and an Eastern Cooperative Oncology Group performance status score of 2 or less, enrolled from 25 hospitals or clinics in 16 states of the USA. Patients received pertuzumab (840 mg loading dose, then 420 mg every 3 weeks, intravenously) and trastuzumab (8 mg/kg loading dose, then 6 mg/kg every 3 weeks, intravenously). The primary endpoint was the proportion of patients who achieved an objective response based on investigator-reported tumour responses. Analyses were done per protocol. This ongoing trial is registered with ClinicalTrials.gov, number NCT02091141. FINDINGS: Between Oct 20, 2014, and June 22, 2017, 57 patients with HER2-amplified metastatic colorectal cancer were enrolled in the MyPathway study and deemed eligible for inclusionin this cohort analysis. Among these 57 evaluable patients, as of Aug 1, 2017, one (2%) patient had a complete response and 17 (30%) had partial responses; thus overall 18 of 57 patients achieved an objective response (32%, 95% CI 20-45). The most common treatment-emergent adverse events were diarrhoea (19 [33%] of 57 patients), fatigue (18 [32%] patients), and nausea (17 [30%] patients). Grade 3-4 treatment-emergent adverse events were recorded in 21 (37%) of 57 patients, most commonly hypokalaemia and abdominal pain (each three [5%] patients). Serious treatment-emergent adverse events were reported in ten (18%) patients and two (4%) of these adverse events (ie, chills and infusion-related reaction) were considered treatment related. There were no treatment-related deaths. INTERPRETATION: Dual HER2-targeted therapy with pertuzumab plus trastuzumab is well tolerated and could represent a therapeutic opportunity for patients with heavily pretreated, HER2-amplified metastatic colorectal cancer. FUNDING: F Hoffmann-La Roche/Genentech.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Antineoplásicos Imunológicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Receptor ErbB-2/genética , Trastuzumab/uso terapêutico , Idoso , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Resistencia a Medicamentos Antineoplásicos , Feminino , Amplificação de Genes , Humanos , Masculino , Pessoa de Meia-Idade , Receptor ErbB-2/antagonistas & inibidores , Resultado do Tratamento
2.
PLoS Genet ; 10(4): e1004256, 2014 04.
Artigo em Inglês | MEDLINE | ID: mdl-24698998

RESUMO

Single Nucleotide Polymorphisms (SNPs) in genes involved in the DNA Base Excision Repair (BER) pathway could be associated with cancer risk in carriers of mutations in the high-penetrance susceptibility genes BRCA1 and BRCA2, given the relation of synthetic lethality that exists between one of the components of the BER pathway, PARP1 (poly ADP ribose polymerase), and both BRCA1 and BRCA2. In the present study, we have performed a comprehensive analysis of 18 genes involved in BER using a tagging SNP approach in a large series of BRCA1 and BRCA2 mutation carriers. 144 SNPs were analyzed in a two stage study involving 23,463 carriers from the CIMBA consortium (the Consortium of Investigators of Modifiers of BRCA1 and BRCA2). Eleven SNPs showed evidence of association with breast and/or ovarian cancer at p<0.05 in the combined analysis. Four of the five genes for which strongest evidence of association was observed were DNA glycosylases. The strongest evidence was for rs1466785 in the NEIL2 (endonuclease VIII-like 2) gene (HR: 1.09, 95% CI (1.03-1.16), p = 2.7 × 10(-3)) for association with breast cancer risk in BRCA2 mutation carriers, and rs2304277 in the OGG1 (8-guanine DNA glycosylase) gene, with ovarian cancer risk in BRCA1 mutation carriers (HR: 1.12 95%CI: 1.03-1.21, p = 4.8 × 10(-3)). DNA glycosylases involved in the first steps of the BER pathway may be associated with cancer risk in BRCA1/2 mutation carriers and should be more comprehensively studied.


Assuntos
Proteína BRCA1/genética , Proteína BRCA2/genética , Neoplasias da Mama/genética , DNA Glicosilases/genética , Reparo do DNA/genética , Neoplasias Ovarianas/genética , Polimorfismo de Nucleotídeo Único/genética , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Predisposição Genética para Doença , Genótipo , Humanos , Pessoa de Meia-Idade , Risco
3.
Pharmacoepidemiol Drug Saf ; 24(4): 389-98, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25079108

RESUMO

PURPOSE: Patient registries are used to monitor safety, examine real-world effectiveness, and may potentially contribute to comparative effectiveness research. To our knowledge, life sciences industry (LSI)-sponsored registries have not been systematically categorized. This study represents a first step toward understanding such registries over time. METHODS: Studies described as registries were identified in the ClinicalTrials.gov database. Characteristics from these registry records were abstracted and analyzed. RESULTS: Of 1202 registries identified, approximately 47% reported LSI sponsorship. These 562 LSI registries varied in focus: medical devices (n = 193, 34%), specific drugs (n = 173, 31%), procedures (n = 29, 5%), or particular diseases (n = 139, 25%). Thirty-three registries (<6%) evaluated pregnancy outcomes. The most common therapeutic area was cardiovascular (n = 234, 42%); others included endocrinology, immunology, oncology, musculoskeletal disorders, and neurology. The two most often measured outcomes were clinical effectiveness and safety, each of which appeared in 363/562 (65%) of LSI registries. Other outcomes included real-world clinical practice patterns (n = 122, 22%), patient-reported outcomes (n = 106, 19%), disease epidemiology/natural history (n = 69, 12%), and economic outcomes (n = 30, 5%). The number of LSI registries and their geographic diversity has increased over time. CONCLUSIONS: The LSI registries represent a substantial proportion of all patient registries documented in ClinicalTrials.gov. These prospective studies are growing in number and encompass diverse therapeutic areas and geographic regions. Most registries measure multiple outcomes and capture real-world data that may be unavailable through other study designs. This classification of LSI registries documents their use for studying heterogeneity of diseases, examining treatment patterns, measuring patient-reported outcomes, examining economic outcomes, and performing comparative effectiveness research.


Assuntos
Disciplinas das Ciências Biológicas , Bases de Dados Factuais/tendências , Sistema de Registros/estatística & dados numéricos , Anormalidades Induzidas por Medicamentos , Feminino , História do Século XX , História do Século XXI , Humanos , Gravidez , Resultado da Gravidez
4.
BMC Cancer ; 14: 307, 2014 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-24885258

RESUMO

BACKGROUND: Amplification of the human epidermal growth factor receptor 2 (HER2) gene occurs in approximately 20% of invasive breast cancer cases and is associated with a more aggressive disease course than HER2-negative breast cancer. HER2-targeted therapies have altered the natural history of HER2-positive breast cancer, a trend that will likely further improve with the recent approval of new agents. A prospective, observational cohort study was designed and initiated to provide real-world insights into current treatment patterns, long-term survival, and patients' experiences with initial and subsequent treatments for HER2-positive metastatic breast cancer (MBC). METHODS/DESIGN: The Systematic Therapies for HER2-positive Metastatic Breast Cancer Study (SystHERs) is a US-based prospective observational cohort study enrolling patients ≥18 years of age with recently diagnosed HER2-positive MBC not previously treated with systemic therapy in the metastatic setting. The primary objective of the study is to identify treatment patterns and clinical outcomes in recently diagnosed patients in a variety of practice settings. Secondary objectives include comparative efficacy, safety, and patient-reported outcomes (PROs). Healthcare resource utilization is an exploratory end point. Tumor tissue and blood sample collection is optional.The SystHERs registry will enroll approximately 1000 patients over a 3-year period, after which the study will continue for ≥5 years, allowing for a maximum follow-up of 8 years. The treating physician will determine all care and the frequency of visits. PRO measures will be completed at study enrollment and every 90 days. Clinical data will be abstracted quarterly from patient records. The first patient was enrolled in June 2012, and preliminary descriptive data based on 25% to 30% of the final study population are expected at the end of 2013, and as of April 25, 2014, 386 patients are enrolled. DISCUSSION: SystHERs is expected to provide in-depth data on demographic, clinicopathological, and treatment patterns and their associations with clinical outcomes, PROs, and healthcare resource utilization. Tumor tissue and DNA repositories will also be established for use in future translational research. TRIAL REGISTRATION NUMBER: NCT01615068 (ClinicalTrials.gov identifier).


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias da Mama/tratamento farmacológico , Metástase Neoplásica , Ado-Trastuzumab Emtansina , Anticorpos Monoclonais Humanizados/administração & dosagem , Neoplasias da Mama/genética , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Intervalo Livre de Doença , Feminino , Humanos , Maitansina/administração & dosagem , Maitansina/análogos & derivados , Receptor ErbB-2/genética , Trastuzumab , Resultado do Tratamento
5.
Cancer ; 119(9): 1652-9, 2013 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-23362014

RESUMO

BACKGROUND: Germline mutations in BRCA1 and BRCA2 (BRCA1/2) are related to an increased lifetime risk of developing breast and ovarian cancer. Although risk-reducing salpingo-oophorectomy reduces the risk of both cancers, loss of fertility is a major concern. A recent study suggested an association between BRCA1 mutation and occult primary ovarian insufficiency. The objective of the current study was to determine whether BRCA1/2 mutation carriers have an earlier onset of natural menopause compared with unaffected women. METHODS: White carriers of the BRCA1/2 gene (n = 382) were identified within the Breast Cancer Risk Program Registry at the University of California at San Francisco and compared with non-clinic-based white women in northern California (n = 765). The 2 groups were compared with regard to median age at the time of natural menopause before and after adjustment for known risk factors, and the role of smoking within each group was examined using the Kaplan-Meier approach for unadjusted analyses and Cox proportional hazards regression analyses for adjusted analyses. RESULTS: The median age at the time of natural menopause in the BRCA1/2 carriers was significantly younger than among the unaffected sample (50 years vs 53 years; P < .001). The unadjusted hazard ratio for natural menopause when comparing BRCA1/2 carriers with unaffected women was 4.06 (95% confidence interval, 3.03-5.45) and was 3.98 (95% confidence interval, 2.87-5.53) after adjusting for smoking, parity, and oral contraceptive use. For BRCA1/2 carriers who were current heavy smokers (smoking ≥ 20 cigarettes/day), the median age at natural menopause was 46 years versus 49 years for nonsmokers (P = .027). CONCLUSIONS: The BRCA1/2 mutation was associated with a significantly earlier age at natural menopause, and heavy smoking compounded this risk. Because the relationship between menopause and the end of natural fertility is considered to be fixed, these findings suggest the risk of earlier infertility among BRCA1/2 carriers.


Assuntos
Fatores Etários , Genes BRCA1 , Genes BRCA2 , Triagem de Portadores Genéticos , Menopausa , Mutação , California , Estudos de Casos e Controles , Feminino , Humanos , Pessoa de Meia-Idade
6.
J Genet Couns ; 22(5): 603-12, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23666114

RESUMO

Previous studies examining communication of BRCA1/2 results with relatives and family uptake of BRCA1/2 testing have sampled from predominantly white, high SES cohorts ascertained solely from tertiary care centers. No studies have focused on family communication and testing among relatives of diverse BRCA1/2 carriers. We conducted structured interviews with 73 BRCA1/2 carriers identified at a public hospital and a tertiary cancer center. We asked participants if each first- and second-degree relative was aware of their BRCA1/2 results and whether or not each relative had tested. Generalized estimating equations identified rates and predictors of family communication and testing. Participants disclosed their test results to 73 % of 606 eligible relatives and 31 % of 514 eligible relatives tested. Communication and testing rates were similar for relatives of participants from the public hospital and the tertiary cancer center. Hospital site was not a significant predictor of either result disclosure or relative uptake of testing. African American and Asian/Pacific Islander participants were significantly less likely to disclose their results to their relatives; relatives of African American participants were significantly less likely to test. Addressing these disparities will require further research into the best ways to facilitate family communication and counsel at-risk relatives of racially and socioeconomically diverse BRCA1/2 mutation carriers.


Assuntos
Neoplasias da Mama/genética , Genes BRCA1 , Genes BRCA2 , Triagem de Portadores Genéticos , Testes Genéticos/estatística & dados numéricos , Humanos , Mutação
7.
J Clin Med ; 12(4)2023 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-36835898

RESUMO

Human papillomavirus (HPV) infections are linked to at least six different types of cancer. The Medical University of South Carolina (MUSC) Hollings Cancer Center (HCC) and Department of Pediatrics leaders identified suboptimal rates of HPV vaccinations in rural and medically underserved communities in South Carolina (SC). To address this major public health problem in SC, they received funding from the HealthyMe/HealthySC (HMHSC) program and HCC to create a statewide community engagement-focused HPV Vaccination Van Program in October 2021. The Program provides HPV vaccinations and other childhood immunizations in school districts and HMHSC health clinics throughout SC, focusing on children aged 9-18 who are eligible for the U.S. Centers for Disease Control and Prevention's Vaccines for Children Program. As of 14 December 2022, the Program administered vaccinations in 16 counties of SC to 552 participants, 243 of whom received HPV vaccinations and were predominantly female (57.2%), aged 4-18 (95.9%), and self-identified as White (44.0%), Black (33.2%), or Hispanic/Latino (15.1%). Most had Medicaid (53.1%)/no insurance coverage (25.1%). The Program is expected to expand as the Program's relationship with SC's school districts grows. The Program provides a model for delivering mobile HPV vaccinations to rural children, thus reducing their cancer risk.

8.
Breast Cancer Res Treat ; 132(3): 1107-18, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22207277

RESUMO

Tamoxifen decreases breast cancer recurrence, mortality, and breast cancer risk in high-risk women. Despite these proven benefits, tamoxifen use is often limited due to side effects. We identified predictors of tamoxifen-induced side effects based on clinical variables and serum tamoxifen metabolite biomarkers in a cross-sectional study of patients taking tamoxifen. We enrolled 241 women and collected data on demographics, tamoxifen use and side effects, as well as potential clinical and serum predictors. We used logistic regression models and adjusted for age, body mass index, ethnicity, education, prior post-menopausal hormone therapy (HT), tamoxifen duration, and endoxifen levels to identify factors associated with side effects. Common tamoxifen attributed side effects were hot flashes (64%), vaginal dryness (35%), sleep problems (36%), weight gain (6%), and depression, irritability or mood swings (6%). In multi-variate models, tamoxifen duration, age, prior post-menopausal HT, and endoxifen levels all predicted side effects. Women who had been on tamoxifen for >12 months were less likely to report side effects (OR 0.15, 95% CI 0.04-0.58) or severe side effects (OR 0.05, 95% CI 0.005-0.58) compared to women on tamoxifen for <12 months. Compared to women younger than 50, women who were age 60-70 and older than 70 were less likely to report side effects (OR 0.22, 95% CI 0.03-1.35; OR 0.13, 95% CI 0.01-0.99; respectively). Women who previously took post-menopausal HT were more likely to report severe side effects. Women with higher endoxifen levels were more likely to report side effects (OR 1.67, 95% CI 1.01-2.77 per standard deviation increase in endoxifen). Clinicians should consider closely monitoring adherence in women taking tamoxifen, especially in younger women, and women who previously took HT. The association between endoxifen levels and side effects is consistent with the data that suggest that endoxifen is the most highly active metabolite of tamoxifen.


Assuntos
Antineoplásicos Hormonais/efeitos adversos , Neoplasias da Mama/prevenção & controle , Recidiva Local de Neoplasia/prevenção & controle , Tamoxifeno/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos Hormonais/farmacocinética , Antineoplásicos Hormonais/uso terapêutico , Citocromo P-450 CYP2D6/genética , Feminino , Estudos de Associação Genética , Genótipo , Humanos , Modelos Logísticos , Quimioterapia de Manutenção , Pessoa de Meia-Idade , Análise Multivariada , Tamoxifeno/farmacocinética , Tamoxifeno/uso terapêutico , Adulto Jovem
9.
Breast Cancer Res Treat ; 136(1): 295-302, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23011509

RESUMO

Several common germline variants identified through genome-wide association studies of breast cancer risk in the general population have recently been shown to be associated with breast cancer risk for BRCA1 and/or BRCA2 mutation carriers. When combined, these variants can identify marked differences in the absolute risk of developing breast cancer for mutation carriers, suggesting that additional modifier loci may further enhance individual risk assessment for BRCA1 and BRCA2 mutation carriers. Recently, a common variant on 6p22 (rs9393597) was found to be associated with increased breast cancer risk for BRCA2 mutation carriers [hazard ratio (HR) = 1.55, 95 % confidence interval (CI) 1.25-1.92, p = 6.0 × 10(-5)]. This observation was based on data from GWAS studies in which, despite statistical correction for multiple comparisons, the possibility of false discovery remains a concern. Here, we report on an analysis of this variant in an additional 6,165 BRCA1 and 3,900 BRCA2 mutation carriers from the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA). In this replication analysis, rs9393597 was not associated with breast cancer risk for BRCA2 mutation carriers (HR = 1.09, 95 % CI 0.96-1.24, p = 0.18). No association with ovarian cancer risk for BRCA1 or BRCA2 mutation carriers or with breast cancer risk for BRCA1 mutation carriers was observed. This follow-up study suggests that, contrary to our initial report, this variant is not associated with breast cancer risk among individuals with germline BRCA2 mutations.


Assuntos
Proteína BRCA1/genética , Proteína BRCA2/genética , Neoplasias da Mama , Mutação em Linhagem Germinativa , Adulto , Idoso , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Cromossomos Humanos Par 6/genética , Feminino , Seguimentos , Estudos de Associação Genética , Predisposição Genética para Doença , Heterozigoto , Humanos , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único , Fatores de Risco
10.
Genet Med ; 13(12): 1045-50, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21844812

RESUMO

PURPOSE: : Coverage policies for genetic services for hereditary cancers are of interest because the services influence cancer risk reduction for both persons with cancer and their family members. We compared coverage policies for BRCA genetic testing and genetic counseling among selected payers in the United States to illuminate eligibility criteria variation that may explain differential access by insurance type. We compared these policies with policies for breast cancer screening with magnetic resonance imaging to consider whether payers apply a unique policy approach to genetic services. METHODS: : We conducted a case study of large private and public payers selected on number of covered lives. We examined coverage policies for BRCA genetic testing, genetic counseling, and screening with magnetic resonance imaging and the eligibility criteria for each. We compared eligibility criteria against National Comprehensive Cancer Network guidelines. RESULTS: : Eligibility criteria for BRCA testing were related to personal history and family history of cancer. Although private payers covered BRCA testing for persons with and without cancer, the local Medicare carrier in our study only covered testing for persons with cancer. In contrast, Arizona's Medicaid program did not cover BRCA testing. Few payers had detailed eligibility criteria for genetic counseling. Private payers have more detailed coverage policies for both genetic services and screening with magnetic resonance imaging in comparison with public payers. CONCLUSION: : Despite clinical guidelines establishing standards for BRCA testing, we found differences in coverage policies particularly between private and public payers. Future research and policy discussions can consider how differences in private and public payer policies influence access to genetic technologies and health outcomes.


Assuntos
Proteína BRCA1/genética , Proteína BRCA2/genética , Neoplasias da Mama/genética , Aconselhamento Genético/economia , Testes Genéticos/economia , Neoplasias Ovarianas/genética , Mecanismo de Reembolso/economia , Adulto , Definição da Elegibilidade , Feminino , Humanos , Cobertura do Seguro , Imageamento por Ressonância Magnética , Medicaid , Medicare , Pessoa de Meia-Idade , Fatores de Risco , Estados Unidos
11.
J Genet Couns ; 19(5): 447-62, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20490636

RESUMO

The Cancer Risk Education Intervention Tool (CREdIT) is a computer-based (non-interactive) slide presentation designed to educate low-literacy, and ethnically and racially diverse public hospital patients at risk of Hereditary Breast and Ovarian Cancer (HBOC) about genetics. To qualitatively evaluate participants' experience with and perceptions of a genetic education program as an adjunct to genetic counseling, we conducted direct observations of the intervention, semi-structured in person interviews with 11 women who viewed CREdIT, and post-counseling questionnaires with the two participating genetic counselors. Five themes emerged from the analysis of interviews: (1) genetic counseling and testing for breast/ovarian cancer was a new concept; (2) CREdIT's story format was particularly appealing; (3) changes in participants' perceived risk for breast cancer varied; (4) some misunderstandings about individual risk and heredity persisted after CREdIT and counseling; (5) the context for viewing CREdIT shaped responses to the presentation. Observations demonstrated ways to make the information provided in CREdIT and by genetic counselors more consistent. In a post-session counselor questionnaire, counselors' rating of the patient's preparedness before the session was significantly higher for patients who viewed CREdIT prior to their appointments than for other patients. This novel educational tool fills a gap in HBOC education by tailoring information to women of lower literacy and diverse ethnic/racial backgrounds. The tool was well received by interview participants and counselors alike. Further study is needed to examine the varied effects of CREdIT on risk perception. In addition, the implementation of CREdIT in diverse clinical settings and the cultural adaptation of CREdIT to specific populations reflect important areas for future work.


Assuntos
Neoplasias da Mama/psicologia , Aconselhamento Genético , Predisposição Genética para Doença , Neoplasias Ovarianas/psicologia , Educação de Pacientes como Assunto/métodos , Adulto , Idoso , Neoplasias da Mama/genética , Feminino , Humanos , Pessoa de Meia-Idade , Neoplasias Ovarianas/genética , Fatores de Risco , Inquéritos e Questionários
12.
J Clin Oncol ; 36(6): 536-542, 2018 02 20.
Artigo em Inglês | MEDLINE | ID: mdl-29320312

RESUMO

Purpose Detection of specific molecular alterations in tumors guides the selection of effective targeted treatment of patients with several types of cancer. These molecular alterations may occur in other tumor types for which the efficacy of targeted therapy remains unclear. The MyPathway study evaluates the efficacy and safety of selected targeted therapies in tumor types that harbor relevant genetic alterations but are outside of current labeling for these treatments. Methods MyPathway ( ClinicalTrials.gov identifier: NCT02091141) is a multicenter, nonrandomized, phase IIa multiple basket study. Patients with advanced refractory solid tumors harboring molecular alterations in human epidermal growth factor receptor-2, epidermal growth factor receptor, v-raf murine sarcoma viral oncogene homolog B1, or the Hedgehog pathway are treated with pertuzumab plus trastuzumab, erlotinib, vemurafenib, or vismodegib, respectively. The primary end point is investigator-assessed objective response rate within each tumor-pathway cohort. Results Between April 1, 2014 and November 1, 2016, 251 patients with 35 different tumor types received study treatment. The efficacy population contains 230 treated patients who were evaluated for response or discontinued treatment before evaluation. Fifty-two patients (23%) with 14 different tumor types had objective responses (complete, n = 4; partial, n = 48). Tumor-pathway cohorts with notable objective response rates included human epidermal growth factor receptor-2-amplified/overexpressing colorectal (38% [14 of 37]; 95% CI, 23% to 55%) and v-raf murine sarcoma viral oncogene homolog B1 V600-mutated non-small-cell lung cancer (43% [six of 14]; 95% CI, 18% to 71%). Conclusion The four currently approved targeted therapy regimens in the MyPathway study produced meaningful responses when administered without chemotherapy in several refractory solid tumor types not currently labeled for these agents.


Assuntos
Terapia de Alvo Molecular/métodos , Neoplasias/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Receptores ErbB/antagonistas & inibidores , Receptores ErbB/genética , Feminino , Proteínas Hedgehog/antagonistas & inibidores , Humanos , Masculino , Pessoa de Meia-Idade , Mutação , Neoplasias/genética , Proteínas Proto-Oncogênicas B-raf/antagonistas & inibidores , Proteínas Proto-Oncogênicas B-raf/genética , Receptor ErbB-2/antagonistas & inibidores , Receptor ErbB-2/genética
13.
Genet Test ; 11(3): 276-90, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17949289

RESUMO

Genetic counseling for BRCA1 and BRCA2 mutations involves teaching about hereditary cancer, genetics and risk, subjects that are difficult to grasp and are routinely misunderstood. Supported by a grant from the Avon Foundation, the UCSF Cancer Risk Program started the first genetic testing and counseling service for a population of traditionally underserved women of varied ethnic and social backgrounds at the San Francisco General Hospital (SFGH). Informed by educational theory and clinical experience, we devised and piloted two simplified explanations of heredity and genetic risk, with the aim of uncovering how to best communicate genetics and risk to this underserved population. A "conventional" version comprised pictures of genes, pedigrees, and quantitative representations of risk. A "colloquial" pictorial version used an analogy of the "information book" of genes, family stories and vignettes, and visual representations of risk, without using scientific words such as genes or chromosomes. A verbal narrative accompanied each picture. We presented these modules to four focus groups of five to eight women recruited from the SFGH Family Practice Clinic. Overall, women preferred a picture-based approach and commented that additional text would have been distracting. The majority of women preferred the colloquial version because it was easier to understand and better conveyed a sense of comfort and hope. We conclude that simplicity, analogies, and familiarity support comprehension while vignettes, family stories, and photos of real people provide comfort and hope. These elements may promote understanding of complex scientific topics in healthcare, particularly when communicating with patients who come from disadvantaged backgrounds.


Assuntos
Neoplasias da Mama/diagnóstico , Aconselhamento Genético , Educação de Pacientes como Assunto , Neoplasias da Mama/etnologia , Neoplasias da Mama/genética , Feminino , Testes Genéticos , Pesquisas sobre Atenção à Saúde , Hospitais Públicos , Humanos , Área Carente de Assistência Médica , São Francisco
14.
J Clin Endocrinol Metab ; 91(10): 3791-7, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16882749

RESUMO

CONTEXT: Accurate measurement of low serum estradiol (E(2) < 30 pg/ml or < 110 pmol/liter) is needed to study relationships between endogenous E(2) and risks of diseases in older women. OBJECTIVE: The objective of this study was to determine whether an extraction-based (indirect) assay or a non-extraction-based (direct) assay correlates better with mass spectrometry and body mass index (BMI). DESIGN/SETTING: In a pilot study of 40 postmenopausal women, endogenous E(2) measurements from three indirect and four direct assay methods and gas chromatography-tandem mass spectrometry (GC-MS/MS) were compared. A confirmatory study compared an indirect and a direct assay, selected among those in the pilot study, to GC-MS/MS; this study was conducted in 374 postmenopausal women not taking hormone therapy from the Ultra Low-dose TRansdermal estrogen Assessment (ULTRA) trial. MAIN OUTCOMES: Pearson correlation coefficients among E(2) measurements by assay methods and BMI, and their confidence intervals, by bias-corrected bootstrap method, were used. RESULTS: In the pilot study, E(2) by three indirect assays correlated better (P < 0.03) with GC-MS/MS and with BMI than measurements by four direct assays. In the confirmatory study, the indirect assay correlated better (P < 0.01) with GC-MS/MS and BMI than the direct assay. Measurements by the indirect and direct assays were overestimated, but deviations in direct assay measurements were less precise. Mean E(2) by the indirect and direct assays were higher (by 14 and 68%, respectively) and less reproducible than by GC-MS/MS. CONCLUSION: Until mass spectrometry is practical for wide use, extraction-based indirect assays may be preferable for measuring low postmenopausal serum E(2).


Assuntos
Estradiol/sangue , Pós-Menopausa/sangue , Idoso , Idoso de 80 Anos ou mais , Índice de Massa Corporal , Feminino , Cromatografia Gasosa-Espectrometria de Massas , Humanos , Pessoa de Meia-Idade , Projetos Piloto
15.
J Clin Oncol ; 23(1): 127-32, 2005 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-15625367

RESUMO

PURPOSE: Women who carry deleterious mutations of BRCA1 or BRCA2 genes have up to a 54% lifetime risk of developing ovarian cancer. After childbearing, women at high risk increasingly choose bilateral risk-reducing salpingo-oophorectomy (RRSO). Two recent studies of BRCA mutation carriers reported occult malignancy in 2.5% of women undergoing RRSO. This study aimed to increase this detection rate using a protocol. METHODS: In 1996, the University of California San Francisco Gynecologic Oncology Program instituted a surgical-pathologic RRSO protocol that was composed of complete removal and serial sectioning of both ovaries and fallopian tubes, peritoneal and omental biopsies, and collection of peritoneal washings for cytology. We report the pathologic findings in 67 BRCA mutation carriers according to the degree of adherence to this protocol. RESULTS: Of the 67 procedures, the protocol was followed completely or partially in 41 (61%). Seven occult malignancies were discovered, four in the fallopian tube and three in the ovaries. Six of these were microscopic, and all seven (17%) were found in specimens from complete or partial protocol procedures as opposed to standard procedures (P = .026). Other variables such as age, parity, BRCA1 or BRCA2 mutation, or type of surgery did not alter the strong effect of protocol procedure on the cancer detection rate. CONCLUSION: A rigorous operative and pathologic protocol for RRSO increases the detection rate of occult ovarian malignancy in BRCA mutation carriers nearly seven-fold. If confirmed, this finding will alter postoperative management because additional staging, chemotherapy, and follow-up may be necessary in affected women.


Assuntos
Neoplasias das Tubas Uterinas/patologia , Tubas Uterinas/cirurgia , Genes BRCA1 , Genes BRCA2 , Heterozigoto , Neoplasias Ovarianas/patologia , Ovariectomia , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Mutação , Neoplasias Peritoneais/patologia
16.
Circulation ; 107(2): 245-50, 2003 Jan 21.
Artigo em Inglês | MEDLINE | ID: mdl-12538423

RESUMO

BACKGROUND: Elevated levels of C-reactive protein (CRP) are associated with an increased risk of coronary events, but whether inflammation is associated with inducible ischemia in patients with stable coronary disease is unknown. METHODS AND RESULTS: We recruited patients with known coronary disease from 2 VA Medical Centers and 1 University-based medical center for the Heart and Soul Study. We measured CRP levels in 118 participants who had exercise-induced ischemia and in 111 who did not have inducible ischemia, as determined by stress echocardiography. We used logistic regression to examine the risk of exercise-induced ischemia associated with elevated CRP. We found that 75% (39/52) of participants in the highest CRP category (>0.38 mg/dL) had inducible ischemia, compared with 45% (79/177) in the lower 4 categories combined (adjusted odds ratio 4.2; 95% confidence interval 1.6 to 11; P=0.004). However, this association differed in users and nonusers of beta-blockers and statins. Among 89 participants who did not use beta-blockers, 93% in the highest CRP category had exercise-induced ischemia, compared with 42% in the lower 4 categories (P=0.03). Among 67 participants who did not use statins, 94% in the highest CRP category had exercise-induced ischemia, compared with 44% in the lower 4 categories (P=0.009). We did not observe a significant association between CRP and ischemia among participants who were treated with either of these medications. CONCLUSION: Elevated CRP levels are associated with inducible ischemia in patients with stable coronary disease, particularly among those not treated with beta-blockers or statins.


Assuntos
Antagonistas Adrenérgicos beta/administração & dosagem , Proteína C-Reativa/análise , Doença das Coronárias/sangue , Inibidores de Hidroximetilglutaril-CoA Redutases/administração & dosagem , Isquemia Miocárdica/sangue , Isquemia Miocárdica/diagnóstico , Fatores Etários , Idoso , California/epidemiologia , Estudos de Coortes , Comorbidade , Doença das Coronárias/epidemiologia , Estudos Transversais , Teste de Esforço , Feminino , Hospitais de Veteranos , Humanos , Masculino , Isquemia Miocárdica/epidemiologia , Valor Preditivo dos Testes , Fatores de Risco
18.
Genet Test ; 9(4): 306-12, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16379544

RESUMO

Genetic counseling and testing for heritable susceptibility to breast cancer caused by mutations in BRCA genes are largely unavailable to underserved women in the United States. Starting in 2002 the UCSF Cancer Risk Program offered this service free of charge to poor and medically indigent women at San Francisco General Hospital (SFGH). One recruitment strategy was a single-page questionnaire in four languages administered to women waiting for mammograms at SFGH. This report analyzes our first 3 years of experience with the recruitment questionnaire and compares the patient demographics and BRCA test results at SFGH with a more typical population undergoing genetic counseling and testing at UCSF's Mt. Zion Hospital (MZH). To our knowledge this is the first comprehensive clinical service for hereditary breast cancer in a U.S. public hospital. The ethnic mix of all 350 patients counseled was Caucasian 49% (approximately 20% of Caucasians reported Ashkenazi Jewish ancestry), Latina, 26%; African American, 13%; and Asian/other, 12%. Compared to the MZH population, SFGH patients were more ethnically diverse, less educated and more likely to be unemployed. Of 72 patients tested for BRCA mutations, 51 (71%) were negative, 5 were BRCA1 positive, and 12 were BRCA2 positive. Four (1 Caucasian, 1 Latina, 2 African American) had a total of 13 BRCA variants of unknown significance (VUS). The ratio of BRCA1/BRCA2 positive SFGH patients (5/12) was reversed compared to MZH (119/91). We evaluated 4573 recruitment questionnaires and 280 (6%) were judged to represent a high risk of heritable cancer. After additional screening and referral negotiation, 74 were scheduled for counseling. We judged the recruitment questionnaire to be a feasible, efficient, and reasonably cost-effective way to identify women at high risk of hereditary cancer in a traditionally underserved population. Underserved populations present special challenges for genetic counselors because of large, geographically dispersed families, cultural taboos about cancer diagnoses, and social marginalization. Despite these complexities, the clinical service at SFGH has been well accepted by patients and staff. Our successful venture can serve as a model for other public hospitals contemplating this clinical service.


Assuntos
Neoplasias da Mama/genética , Genes BRCA1 , Genes BRCA2 , Aconselhamento Genético , Hospitais Públicos , Inquéritos e Questionários , Adulto , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/etnologia , Feminino , Aconselhamento Genético/normas , Testes Genéticos , Pesquisas sobre Atenção à Saúde , Hospitais Públicos/normas , Humanos , Educação de Pacientes como Assunto
19.
Syst Rev ; 4: 133, 2015 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-26428301

RESUMO

BACKGROUND: Human epidermal growth factor receptor 2 (HER2)-positive metastatic breast cancer (MBC) is an aggressive form of breast cancer and is historically associated with poor outcomes compared with HER2-negative MBC. Since 1998, four drugs have been globally approved for the targeted treatment of HER2-positive MBC. Additional advances in patient care-such as improved breast cancer screening, HER2 testing, and supportive care-have also occurred. The objective of this systematic review and meta-analysis is to determine whether there has been a cumulative change in survival over time in patients with HER2-positive advanced breast cancer based on results from interventional clinical trials (ICTs) and observational studies and to compare outcomes across these types of studies. METHODS/DESIGN: A systematic search of Medline, EMBASE, and the Cochrane Central Register of Controlled Trials will be performed. Two investigators will independently assess each abstract for inclusion. English language reports of ICTs and observational studies that include patients with HER2-positive advanced breast cancer from 1987 onwards will be considered. The primary outcome of interest is overall survival; secondary outcomes include progression-free survival and safety. Data on clinical outcomes, as well as on study design, study population, treatment/intervention, methodological quality, and outcomes, will be extracted using a structured codebook developed by the authors for this study. Standard and cumulative random effects meta-analysis will be performed to derive pooled risk estimates, both overall and by study design, controlling for covariates such as aggregate demographic and clinical characteristics of patients, treatment/intervention, and study characteristics. Heterogeneity of studies will be evaluated using the I(2) statistic. Differences in risk estimates by quality characteristics will be performed using meta-regression. DISCUSSION: This study will evaluate current and evolving trends in survival associated with HER2-positive advanced breast cancer over nearly 30 years and will build upon prior, less comprehensive, systematic analyses. This information is important to patients, healthcare providers, and researchers, particularly in the advanced disease setting, in which new therapies have been recently approved. Including observational studies allows us to evaluate real-world effectiveness; useful information will be gained by comparing findings from observational studies with those from ICTs. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42014014345.


Assuntos
Neoplasias da Mama/química , Neoplasias da Mama/mortalidade , Neoplasias da Mama/terapia , Receptor ErbB-2/análise , Neoplasias da Mama/patologia , Ensaios Clínicos como Assunto , Feminino , Humanos , Metástase Neoplásica , Estudos Observacionais como Assunto , Projetos de Pesquisa , Revisões Sistemáticas como Assunto
20.
JAMA Intern Med ; 173(2): 96-103, 2013 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-23247828

RESUMO

BACKGROUND: For women at potentially increased risk for ovarian cancer, data regarding screening and risk reduction are limited. Previous studies have reported on the behaviors of BRCA mutation carriers, but less is known about the behaviors of non- BRCA carriers. We surveyed a large cohort of women after BRCA testing to identify the prevalence and posttest predictors of risk-reducing and screening interventions. METHODS: A median of 3.7 years after BRCA testing, 1447 women who received genetic counseling and BRCA testing at 2 hospital sites were surveyed, with a 77.6% response rate. We analyzed data from 1077 survey respondents. We performed univariate and multivariate logistic regression analyses to identify predictors of risk-reducing salpingo-oophorectomy (RRSO), screening transvaginal ultrasonography (TVUS), and screening serum cancer antigen 125 (CA-125). RESULTS: Among the respondents, 201 women (18.7%) received positive test results for a deleterious mutation, 103 women (9.6%) received true-negative results, and 773 women (71.8%) received uninformative results. Overall, 19.1% of eligible women underwent RRSO and 39.6% used screening procedures. A positive BRCA result predicted RRSO (odds ratio [OR], 28.1; 95% CI, 16.2-48.6), TVUS (9.5 [4.3-21.0]), and serum CA-125 (13.0 [5.5-29.0]). Similarly, a true-negative BRCA result reduced the OR for RRSO (0.1 [0.0-0.6]), TVUS (0.2 [0.1-0.5]), and serum CA-125 (0.3 [0.1-0.7]). Of the 71.8% of women who received uninformative results after BRCA testing, 12.3% subsequently underwent RRSO, 33.8% reported ever having undergone screening serum CA-125 since BRCA testing, and 37.3% reported ever having undergone screening TVUS since BRCA testing. CONCLUSIONS: Results of BRCA testing strongly predict RRSO and ovarian cancer screening. Use of RRSO and ovarian screening was reported in a sizable percentage of non- BRCA carriers despite insufficient data to determine the effectiveness of these interventions.


Assuntos
Genes BRCA1 , Genes BRCA2 , Programas de Rastreamento/estatística & dados numéricos , Neoplasias Ovarianas/diagnóstico , Ovariectomia/estatística & dados numéricos , Salpingectomia/estatística & dados numéricos , Adulto , Antígeno Ca-125/sangue , Feminino , Humanos , Pessoa de Meia-Idade , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/prevenção & controle , Fatores de Risco
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