Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 7 de 7
Filtrar
1.
J Drugs Dermatol ; 15(2): 147-53, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26885781

RESUMO

BACKGROUND: Lower socioeconomic status is associated with poorer overall health outcomes. However, few studies have examined the impact of socioeconomic status on psoriasis. OBJECTIVE: To examine the impact of individual socioeconomic status on systemic therapeutic outcomes amongst psoriasis patients. METHODS: The study analyzed 156 psoriasis patients treated at the Tufts Medical Center Department of Dermatology from 2008-2014. Individual socioeconomic status was inferred from neighborhood income, defined as the percentage of households with income below the federal poverty line (% below FPL) in the patient's census tract. The following outcomes were compared between socioeconomic groups: improvement in simple measure for assessing psoriasis activity (S-MAPA) score at 12 weeks, primary and secondary drug failure rates, and incidence of documented medication non-adherence. RESULTS: Those patients living in relatively poorer neighborhoods (% below FPL ≤ 10%) experienced a significantly decreased improvement in S-MAPA score at 12 weeks of biologic treatment when compared to those in relatively richer neighborhoods (% below FPL >10%), 23.2% vs. 45.5%, P=0.021. Patients living in poorer neighborhoods also had a significantly higher rate of primary drug failure when treated with biologics (34.7% vs. 18.4%, P=0.039) and were significantly more likely to have ≥ 1 documented instance of medication non-adherence when treated with biologics (45.5% vs. 8.8%, P < 0.001). LIMITATIONS: Retrospective design, small sample size CONCLUSIONS: Our study offers preliminary data that suggests lower socioeconomic status may be associated with decreased clinical response to the biologic agents, presumably through decreased medication adherence.


Assuntos
Fatores Biológicos/administração & dosagem , Fatores Biológicos/economia , Psoríase/tratamento farmacológico , Psoríase/economia , Classe Social , Estudos de Coortes , Quimioterapia Combinada , Feminino , Humanos , Masculino , Adesão à Medicação , Psoríase/diagnóstico , Estudos Retrospectivos , Resultado do Tratamento
2.
J Drugs Dermatol ; 14(8): 893-8, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26267736

RESUMO

BACKGROUND: Additional studies are needed to examine the efficacy of ustekinumab in psoriasis patients who have previously been exposed to tumor necrosis factor inhibitors (TNFi). OBJECTIVE: To examine the predictive effect of TNFi primary failure and the number of TNFi exposures on the efficacy of ustekinumab in psoriasis treatment. METHODS: This retrospective study examined 44 psoriasis patients treated at the Tufts Medical Center Department of Dermatology between January 2008 and July 2014. Patients were selected if they were treated with ustekinumab and had ≥ 1 previous TNFi exposure. The following subgroups were compared: patients with vs without a previous TNFi primary failure, and patients with one vs multiple previous TNFi exposures. The efficacy measure used was the previously validated Simple Measure for Assessing Psoriasis Activity (S-MAPA), which is calculated by the product of the body surface area and physician global assessment. The primary outcome was the percentage improvement S-MAPA from course baseline at week 12 of ustekinumab treatment. Secondary outcomes were the psoriasis clearance, primary failure, and secondary failure rates with ustekinumab treatment. RESULTS: Patients with a previous TNFi primary failure had a significantly lower percentage improvement in S-MAPA score at week 12 of ustekinumab treatment compared with patients without TNFi primary failure (36.2% vs 61.1%, P=.027). Multivariate analysis demonstrated that this relationship was independent of patient demographics and medical comorbidities. Patients with multiple TNFi exposures had a non-statistically significant lower percentage S-MAPA improvement at week 12 (40.5% vs 52.9%, P=.294) of ustekinumab treatment compared with patients with a single TNFi exposure. CONCLUSIONS: Among psoriasis patients previously exposed to TNFi, a history of a previous TNFi primary failure predicts a decreased response to ustekinumab independent of patient demographics and medical comorbidities.


Assuntos
Fármacos Dermatológicos/uso terapêutico , Psoríase/tratamento farmacológico , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Ustekinumab/uso terapêutico , Adalimumab/uso terapêutico , Adulto , Idoso , Anticorpos Monoclonais/uso terapêutico , Etanercepte/uso terapêutico , Feminino , Humanos , Infliximab/uso terapêutico , Masculino , Pessoa de Meia-Idade , Retratamento , Estudos Retrospectivos , Índice de Gravidade de Doença , Falha de Tratamento
3.
Cancer Res Commun ; 3(2): 192-201, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36968138

RESUMO

Purpose: Isocitrate dehydrogenase (IDH) 1 and IDH2 mutations (IDH1/2mt) are frequent in glioma. Preclinical studies suggest IDH1/2mts confer "BRCAness" phenotype, a vulnerability that can be targeted through PARP inhibition. To test this hypothesis, we conducted a multicenter study of olaparib monotherapy in patients with IDH1/2mt gliomas. Methods: Patients with recurrent, contrast-enhancing IDH1/2mt gliomas were enrolled in a two-step phase II trial; the primary endpoint was overall response rate per Response Assessment in Neuro-Oncology (RANO) criteria. Olaparib 300 mg orally twice daily was given. Results: A total of 15 evaluable patients were enrolled. Histology was astrocytoma (N = 12) and oligodendroglioma (N = 3). Most toxicities were grade 1 or 2. Best response was stable disease (SD) in 9 (60%) patients. Median progression-free survival (PFS) was 3.63 months and median overall survival was 20.7 months. For patients with SD, median PFS was 5.53 months; 4 patients had SD for >6 months. Among patients with best response progressive disease (N = 6), 5 had grade 4 tumor and 4 had known CDKN2A alteration. PFS was 5.23 months for grades 2 or 3 tumors (N = 10) versus 1.8 months for grade 4 (N = 5; P = 0.0013). Conclusion: The study did not meet the prespecified response-based activity threshold for moving to step 2. However, prolonged SD was observed in patients with grades 2 and 3 histologies, suggesting olaparib monotherapy could be of clinical benefit in select populations. Grade 4 tumors per 2021 World Health Organization classification defined by histology or CDKN2A alteration derived no benefit from this drug, highlighting the usefulness of this classification for future patient stratification and trial design. Significance: A single-arm phase II trial of olaparib in IDH-mutant glioma demonstrated clinically significant prolonged SD for select patients with grade 2/3 disease, suggesting potential benefit of olaparib in IDH-mutant gliomas.


Assuntos
Antineoplásicos , Neoplasias Encefálicas , Glioma , Humanos , Inibidores de Poli(ADP-Ribose) Polimerases/efeitos adversos , Neoplasias Encefálicas/tratamento farmacológico , Isocitrato Desidrogenase/genética , Recidiva Local de Neoplasia/tratamento farmacológico , Glioma/tratamento farmacológico , Antineoplásicos/efeitos adversos
4.
NPJ Breast Cancer ; 9(1): 38, 2023 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-37179362

RESUMO

We assessed the predictive value of an image analysis-based tumor-infiltrating lymphocytes (TILs) score for pathologic complete response (pCR) and event-free survival in breast cancer (BC). About 113 pretreatment samples were analyzed from patients with stage IIB-IIIC HER-2-negative BC randomized to neoadjuvant chemotherapy ± bevacizumab. TILs quantification was performed on full sections using QuPath open-source software with a convolutional neural network cell classifier (CNN11). We used easTILs% as a digital metric of TILs score defined as [sum of lymphocytes area (mm2)/stromal area(mm2)] × 100. Pathologist-read stromal TILs score (sTILs%) was determined following published guidelines. Mean pretreatment easTILs% was significantly higher in cases with pCR compared to residual disease (median 36.1 vs.14.8%, p < 0.001). We observed a strong positive correlation (r = 0.606, p < 0.0001) between easTILs% and sTILs%. The area under the prediction curve (AUC) was higher for easTILs% than sTILs%, 0.709 and 0.627, respectively. Image analysis-based TILs quantification is predictive of pCR in BC and had better response discrimination than pathologist-read sTILs%.

5.
JCO Oncol Pract ; 18(10): e1641-e1647, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35985001

RESUMO

PURPOSE: The utilization of the hospitalist care model has increased over the past decade because of improved cost-effectiveness, quality of care, and value that it provides. Studies have shown that compared with the traditional care model, use of hospitalists provides cost-saving and improved value to hospital systems. However, the data for the use of oncology hospitalists (ONC Hosp) are sparse. In this study, we investigate the impact of inpatient ONC Hosp on 30-day readmissions, length of stay (LOS), discharge to hospice, and inpatient mortality when compared with a traditional model where outpatient oncologists manage the acute issues of hospitalized patients with cancer. METHODS: Rhode Island Hospital hired ONC Hosps to attend on the inpatient oncology service. To determine the impact of this new patient care model, we performed a retrospective review of oncology patients admitted to Rhode Island Hospital between July 1, 2012, and June 30, 2018, and compared quality outcomes of 30-day readmission, LOS, discharge to hospice, and inpatient mortality to those from the traditional care model. RESULTS: Compared with outpatient oncologists care, care by ONC Hosp was associated with a significant decrease in 30-day readmissions (23.0% v 29.6%, P = .019) and a significant increase in discharge to hospice (18.1% v 12.1%, P < .001). No significant difference was detected between LOS (P = .833) or inpatient mortality (P = .332). CONCLUSION: This study shows that compared with the traditional care model, the use of ONC Hosps has a positive impact on patient care and the potential to add value to the hospital system.


Assuntos
Hematologia , Médicos Hospitalares , Neoplasias , Humanos , Pacientes Internados , Tempo de Internação
6.
NPJ Breast Cancer ; 8(1): 88, 2022 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-35869114

RESUMO

Differences in the tumor immune microenvironment may result in differences in prognosis and response to treatment in cancer patients. We hypothesized that differences in the tumor immune microenvironment may exist between African American (AA) and NonAA patients, due to ancestry-related or socioeconomic factors, that may partially explain differences in clinical outcomes. We analyzed clinically matched triple-negative breast cancer (TNBC) tissues from self-identified AA and NonAA patients and found that stromal TILs, PD-L1 IHC-positivity, mRNA expression of immune-related pathways, and immunotherapy response predictive signatures were significantly higher in AA samples (p < 0.05; Fisher's Exact Test, Mann-Whitney Test, Permutation Test). Cancer biology and metabolism pathways, TAM-M2, and Immune Exclusion were significantly higher in NonAA samples (p < 0.05; Permutation Test, Mann-Whitney Test). There were no differences in somatic tumor mutation burden. Overall, there is greater immune infiltration and inflammation in AA TNBC and these differences may impact response to immune checkpoint inhibitors and other therapeutic agents that modulate the immune microenvironment.

7.
Neuroimage Clin ; 18: 74-85, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29387525

RESUMO

Introduction: Lexico-semantic disturbances are considered central to schizophrenia. Clinically, their clearest manifestation is in language production. However, most studies probing their underlying mechanisms have used comprehension or categorization tasks. Here, we probed automatic semantic activity prior to language production in schizophrenia using event-related potentials (ERPs). Methods: 19 people with schizophrenia and 16 demographically-matched healthy controls named target pictures that were very quickly preceded by masked prime words. To probe automatic semantic activity prior to production, we measured the N400 ERP component evoked by these targets. To determine the origin of any automatic semantic abnormalities, we manipulated the type of relationship between prime and target such that they overlapped in (a) their semantic features (semantically related, e.g. "cake" preceding a < picture of a pie >, (b) their initial phonemes (phonemically related, e.g. "stomach" preceding a < picture of a starfish >), or (c) both their semantic features and their orthographic/phonological word form (identity related, e.g. "socks" preceding a < picture of socks >). For each of these three types of relationship, the same targets were paired with unrelated prime words (counterbalanced across lists). We contrasted ERPs and naming times to each type of related target with its corresponding unrelated target. Results: People with schizophrenia showed abnormal N400 modulation prior to naming identity related (versus unrelated) targets: whereas healthy control participants produced a smaller amplitude N400 to identity related than unrelated targets, patients showed the opposite pattern, producing a larger N400 to identity related than unrelated targets. This abnormality was specific to the identity related targets. Just like healthy control participants, people with schizophrenia produced a smaller N400 to semantically related than to unrelated targets, and showed no difference in the N400 evoked by phonemically related and unrelated targets. There were no differences between the two groups in the pattern of naming times across conditions. Conclusion: People with schizophrenia can show abnormal neural activity associated with automatic semantic processing prior to language production. The specificity of this abnormality to the identity related targets suggests that that, rather than arising from abnormalities of either semantic features or lexical form alone, it may stem from disruptions of mappings (connections) between the meaning of words and their form.


Assuntos
Encéfalo/fisiopatologia , Potenciais Evocados/fisiologia , Idioma , Esquizofrenia/fisiopatologia , Adulto , Eletroencefalografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tempo de Reação/fisiologia , Leitura
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA