Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 115
Filtrar
Más filtros

Bases de datos
Tipo del documento
Intervalo de año de publicación
1.
Clin Transplant ; 37(10): e15059, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37395991

RESUMEN

BACKGROUND: Hematopoietic cell transplant (HCT) patients undergo pre- transplant renal function evaluation to confirm transplant eligibility and tailor pharmacotherapy. There is limited evidence regarding the most accurate method of estimating creatinine clearance (CrCl) within this patient population and no studies exist that evaluate the weight utilized within the Cockcroft-Gault (CG) equation in HCT patients. This study evaluates different weight and serum creatinine (SCr) adjustments utilized within the CG equation estimating for renal clearance in patients undergoing HCT. OBJECTIVE: This is a retrospective, single center analysis of adult HCT patients who underwent pre-transplant evaluation with a measured CrCl using a 24-h urine creatinine collection. The primary outcome was to evaluate the correlation of various weights used in estimation of CrCl compared to measured CrCl. Key secondary outcomes include evaluation of the impact of various weights on estimated CrCl in subpopulations, evaluation of adjusting SCr to pre-determined limits, and determination of an appropriate obesity threshold to utilize body weight adjustments. RESULTS: Seven-hundred and forty-two patients were included in the study. In the primary analysis, CG utilizing adjusted body weight (ADjBW0.4 ) had a greater correlation (r = .812) to measured CrCl when compared to total or ideal body weight (r = .801 and r = .790 respectively). The threshold of 120% of ideal body weight (IBW) produced less bias and greater accuracy in comparison to the threshold of 140% IBW. In patients 60 years or older, rounding low SCr values up .8 or 1 mg/dL resulted in decreased correlation and a greater mean difference in comparison to not rounding SCr. CONCLUSION: In HCT patients who are overweight or obese, ADjBW .4 is the most accurate weight for the CG equation. In HCT patients who have a total body weight < 120% IBW, total body weight is the most accurate weight to utilize. Rounding up low SCr to .8 or 1 mg/dL does not improve the accuracy or led to less bias of the CG equation.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Adulto , Humanos , Creatinina , Tasa de Filtración Glomerular , Estudios Retrospectivos , Obesidad
2.
Am J Transplant ; 22(3): 717-730, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34668635

RESUMEN

Prevention of allograft rejection often requires lifelong immune suppression, risking broad impairment of host immunity. Nonselective inhibition of host T cell function increases recipient risk of opportunistic infections and secondary malignancies. Here we demonstrate that AJI-100, a dual inhibitor of JAK2 and Aurora kinase A, ameliorates skin graft rejection by human T cells and provides durable allo-inactivation. AJI-100 significantly reduces the frequency of skin-homing CLA+ donor T cells, limiting allograft invasion and tissue destruction by T effectors. AJI-100 also suppresses pathogenic Th1 and Th17 cells in the spleen yet spares beneficial regulatory T cells. We show dual JAK2/Aurora kinase A blockade enhances human type 2 innate lymphoid cell (ILC2) responses, which are capable of tissue repair. ILC2 differentiation mediated by GATA3 requires STAT5 phosphorylation (pSTAT5) but is opposed by STAT3. Further, we demonstrate that Aurora kinase A activation correlates with low pSTAT5 in ILC2s. Importantly, AJI-100 maintains pSTAT5 levels in ILC2s by blocking Aurora kinase A and reduces interference by STAT3. Therefore, combined JAK2/Aurora kinase A inhibition is an innovative strategy to merge immune suppression with tissue repair after transplantation.


Asunto(s)
Aurora Quinasa A , Inmunidad Innata , Animales , Aurora Quinasa A/metabolismo , Rechazo de Injerto/etiología , Rechazo de Injerto/prevención & control , Humanos , Janus Quinasa 2 , Ratones , Ratones Endogámicos C57BL , Células Th17 , Trasplante Homólogo
3.
Oncologist ; 27(8): 621-e617, 2022 08 05.
Artículo en Inglés | MEDLINE | ID: mdl-35325225

RESUMEN

BACKGROUND: Neoadjuvant chemoradiation with fluoropyrimidine followed by surgery and adjuvant chemotherapy has been the standard treatment of locally advanced stages II and III rectal cancer for many years. There is a high risk for disease recurrence; therefore, optimizing chemoradiation strategies remains an unmet need. Based on a few studies, there is evidence of the synergistic effect of VEGF/PDGFR blockade with radiation. METHODS: In this phase I, dose-escalation and dose-expansion study, we studied 3 different dose levels of lenvatinib in combination with capecitabine-based chemoradiation for locally advanced rectal cancer. RESULTS: A total of 20 patients were enrolled, and 19 were eligible for assessment of efficacy. The combination was well tolerated, with an MTD of 24 mg lenvatinib. The downstaging rate for the cohort and the pCR was 84.2% and 37.8%, respectively. Blood-based protein biomarkers TSP-2, VEGF-R3, and VEGF correlated with NAR score and were also differentially expressed between response categories. The NAR, or neoadjuvant rectal score, encompasses cT clinical tumor stage, pT pathological tumor stage, and pN pathological nodal stage and provides a continuous variable for evaluating clinical trial outcomes. CONCLUSION: The combination of lenvatinib with capecitabine and radiation in locally advanced rectal cancer was found to be safe and tolerable, and potential blood-based biomarkers were identified. CLINICAL TRIAL REGISTRATION: NCT02935309.


Asunto(s)
Adenocarcinoma , Quimioradioterapia , Recurrencia Local de Neoplasia , Neoplasias del Recto , Adenocarcinoma/terapia , Capecitabina , Quimioradioterapia/efectos adversos , Fluorouracilo , Humanos , Terapia Neoadyuvante , Recurrencia Local de Neoplasia/terapia , Estadificación de Neoplasias , Compuestos de Fenilurea , Quinolinas , Neoplasias del Recto/patología , Neoplasias del Recto/terapia , Resultado del Tratamiento , Factor A de Crecimiento Endotelial Vascular
4.
BMC Med Res Methodol ; 22(1): 51, 2022 02 20.
Artículo en Inglés | MEDLINE | ID: mdl-35184729

RESUMEN

BACKGROUND: The Bland-Altman plot with the limits of agreement has been widely used as an absolute index for assessing test-retest reliability or reproducibility between two measurements. We have observed that in the settings where the relative index such as concordance correlation coefficient (CCC) or intraclass correlation coefficient is employed, the limits of agreement approach may be inconsistent with the scaled index. Particularly, the broad width of the limits of agreement may indicate a lack of agreement when the two measurements are highly concordant but an acceptable difference is not known and the common variance of the data is large. This research aims to create a novel, CCC-based guidance for graphical evaluation of reproducibility or reliability. METHODS: The concordance correlation coefficient is used to create a 100(1-α)% reference band from two measurements. Simulation studies and real examples, including the peak expiratory flow rate data in Bland and Altman's paper and the test-retest reproducibility data of the Radiomics study, are implemented to assess the use of the reference band. RESULTS: In the absence of an acceptable difference between measurements, we found that the limits of agreement may not be consistent with the concordance correlation coefficient. Our simulation study results and real data application show that the proposed method can provide practitioners with a novel graphical evaluation that is consistent with results from the concordance correlation coefficient. CONCLUSIONS: Our proposed novel scaled index-based guidance can be used for the graphical evaluation of reproducibility or reliability and may have advantages over the limits of agreement in settings where the concordance correlation coefficient is employed.


Asunto(s)
Modelos Estadísticos , Humanos , Variaciones Dependientes del Observador , Reproducibilidad de los Resultados
5.
Cancer ; 127(8): 1293-1300, 2021 04 15.
Artículo en Inglés | MEDLINE | ID: mdl-33289918

RESUMEN

BACKGROUND: Biliary tract cancer (BTC) has a poor prognosis despite treatment with first-line gemcitabine and cisplatin. In BTC, PI3K/AKT pathway activation has been shown to increase resistance to chemotherapy, which may be overcome with PI3K inhibition. This phase 2 study evaluated the safety and efficacy of copanlisib, a PI3K inhibitor, with gemcitabine and cisplatin in advanced BTCs. The role of PTEN expression in outcomes was also explored. METHODS: Patients with advanced/unresectable BTC received gemcitabine, cisplatin, and copanlisib as their first-line treatment. The primary endpoint was progression-free survival (PFS) at 6 months. Secondary endpoints were the response rate (RR), median overall survival (OS)/PFS, and safety profile. An assessment of PTEN expression by immunohistochemistry was also performed along with molecular profiling. RESULTS: Twenty-four patients received at least 1 dose of the study drug. The PFS rate at 6 months was 51%; the median OS was 13.7 months (95% CI, 6.8-18.0 months), and the median PFS was 6.2 months (95% CI, 2.9-10.1 months). Nineteen patients were evaluable for RR: 6 patients achieved a partial response (31.6%), and 11 (57.9%) had stable disease. The most common grade 3/4 adverse events were a decreased neutrophil count (45.83%), anemia (25%), increased lipase (25%), and hypertension (20.8%). Twenty patients had tissue evaluable for the PTEN status. The PFS for low (n = 9) and high PTEN expression (n = 11) was 8.5 and 4.6 months, respectively (P = .19). The median OS for low and high PTEN expression groups was 17.9 and 7.0 months, respectively (P = .19). CONCLUSIONS: The addition of copanlisib to gemcitabine and cisplatin does not improve PFS at 6 months. However, future studies using PTEN as a potential biomarker should be considered. LAY SUMMARY: The addition of copanlisib, a PI3K inhibitor, to standard chemotherapy for advanced biliary tract cancers was assessed for efficacy and safety. Twenty-four patients with advanced biliary tract cancer received treatment in this study. There was no difference in survival with the addition of copanlisib in comparison with standard chemotherapy. Copanlisib may be more effective and increase survival in patients with low PTEN expression levels. Further studies are needed to confirm this. No unexpected adverse events occurred.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias del Sistema Biliar/tratamiento farmacológico , Colangiocarcinoma/tratamiento farmacológico , Cisplatino/uso terapéutico , Desoxicitidina/análogos & derivados , Pirimidinas/uso terapéutico , Quinazolinas/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias del Sistema Biliar/metabolismo , Neoplasias del Sistema Biliar/patología , Colangiocarcinoma/metabolismo , Colangiocarcinoma/patología , Desoxicitidina/uso terapéutico , Supervivencia sin Enfermedad , Femenino , Vesícula Biliar/efectos de los fármacos , Vesícula Biliar/metabolismo , Vesícula Biliar/patología , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Masculino , Persona de Mediana Edad , Fosfohidrolasa PTEN/genética , Fosfohidrolasa PTEN/metabolismo , Inhibidores de las Quinasa Fosfoinosítidos-3/uso terapéutico , Medicina de Precisión , Supervivencia sin Progresión , Gemcitabina
6.
Haematologica ; 106(4): 978-986, 2021 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-32327504

RESUMEN

CD19 CAR T-cell therapy with axicabtagene ciloleucel (axi-cel) for relapsed or refractory (R/R) large B cell lymphoma (LBCL) may lead to durable remissions, however, prolonged cytopenias and infections may occur. In this single center retrospective study of 85 patients, we characterized immune reconstitution and infections for patients remaining in remission after axi-cel for LBCL. Prolonged cytopenias (those occurring at or after day 30 following infusion) were common with >= grade 3 neutropenia seen in 21/70 (30-0%) patients at day 30 and persisting in 3/31 (9-7%) patients at 1 year. B cells were undetectable in 30/34 (88-2%) patients at day 30, but were detected in 11/19 (57-9%) at 1 year. Median IgG levels reached a nadir at day 180. By contrast, CD4 T cells decreased from baseline and were persistently low with a median CD4 count of 155 cells/µl at 1 year after axi-cel (n=19, range 33 - 269). In total, 23/85 (27-1%) patients received IVIG after axi-cel, and 34/85 (40-0%) received G-CSF. Infections in the first 30 days occurred in 31/85 (36-5%) patients, of which 11/85 (12-9%) required intravenous antibiotics or hospitalization ("severe") and were associated with cytokine release syndrome (CRS), neurotoxicity, tocilizumab use, corticosteroid use, and bridging therapy on univariate analyses. After day 30, 7 severe infections occurred, with no late deaths due to infection. Prolonged cytopenias are common following axi-cel therapy for LBCL and typically recover with time. Most patients experience profound and prolonged CD4 T cell immunosuppression without severe infection.


Asunto(s)
Reconstitución Inmune , Inmunoterapia Adoptiva , Antígenos CD19/uso terapéutico , Productos Biológicos , Humanos , Estudios Retrospectivos
7.
Gynecol Oncol ; 161(3): 693-699, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33812698

RESUMEN

OBJECTIVES: Older women have a worse prognosis with advanced epithelial ovarian cancer (EOC) and comorbidities likely contribute to poor outcomes. We sought to identify comorbid conditions and treatment-related factors in older women. METHODS: A retrospective chart review identified 351 patients who underwent cytoreductive surgery (CRS). 100/351 (28.5%) were ≥ 70 years old. Demographic and clinicopathologic information was collected. Crude progression-free (PFS) and overall survival (OS) estimates were calculated using Kaplan-Meier method. Cox proportional hazards regression model was used to estimate hazard ratios and adjustments for confounders. RESULTS: Study subjects ≥70 years old had significantly: higher Cumulative Illness Rating Scale-Geriatric (CIRS-G) score (5.9 vs 4.3; p = 0.0001), less completion of adjuvant chemotherapy (24% vs 15.1%; p = 0.049), less intraperitoneal (IP) therapy (18.2% vs 35.5%; p = 0.002), less clinical trial participation (16% vs 26.3%; p = 0.040), decreased platinum sensitivity (60% vs 73.7%; p = 0.012) and lacked BRCA mutations (0% vs 12%; p = 0.0006). They were less likely to have optimal CRS (75% vs 86.9%; p = 0.007) with same surgical complexity (p = 0.89). Patients ≥70 had significantly worse PFS and OS. In a multivariate analysis, better OS was associated with younger age (<70 years old), any IP therapy, completion of adjuvant chemotherapy, and platinum sensitivity. CONCLUSION: The older cohort had worse CIRS-G scores (5.9 vs 4.3; p = 0.0001), but no strong associations between comorbidities and treatment characteristics, but less optimal CRS rates (75% vs 86.9%; p = 0.007) with similar surgical complexity and less platinum sensitivity. Our results show comorbid conditions in older patients with advanced EOC may have less impact than tumor biology.


Asunto(s)
Carcinoma Epitelial de Ovario/cirugía , Anciano Frágil , Neoplasias Ováricas/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma Epitelial de Ovario/mortalidad , Carcinoma Epitelial de Ovario/patología , Comorbilidad , Femenino , Florida , Humanos , Registros Médicos , Persona de Mediana Edad , Neoplasias Ováricas/mortalidad , Neoplasias Ováricas/patología , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Análisis de Supervivencia
8.
J Genet Couns ; 30(2): 394-405, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-32936981

RESUMEN

Latinas are less likely to participate in genetic counseling (GC) and genetic testing (GT) than non-Hispanic Whites. A multisite, randomized pilot study tested a culturally targeted educational intervention to increase uptake of GC/GT among Latina breast cancer (BC) survivors (N = 52). Participants were recruited in Tampa, FL and Ponce, PR and randomized to: (a) fact sheet about BC survivorship (control) or (b) a culturally targeted educational booklet about GC/GT (intervention). Participants in the intervention condition were also offered no-cost telephone GC followed by free GT with mail-based saliva sample collection. Participants self-reported hereditary breast and ovarian cancer (HBOC) knowledge and emotional distress at baseline and 1- and 3-month follow-ups. We used logistic regression to examine differences in GC/GT uptake by study arm (primary outcome) and repeated measures ANOVA to examine the effects of study arm and time on HBOC knowledge and emotional distress (secondary outcomes). Compared to the control arm, intervention participants were more likely to complete GC (ORIntervention  = 13.92, 95% CI = 3.06-63.25, p < .01) and GT (ORIntervention  = 12.93, 95% CI = 2.82-59.20, p < .01). Study site did not predict uptake of GC (p = .08) but Ponce participants were more likely to complete GT (ORPonce  = 4.53, 95% CI = 1.04-19.72, p = .04). ANOVAs demonstrated an increase in HBOC knowledge over time across both groups (F(2,88) = 12.24, p < .01, ηp2  = 0.22). We also found a significant interaction of study arm and time, such that intervention participants demonstrated a greater and sustained (to the 3-month follow-up) increase in knowledge than control participants (F(2,88) = 3.66, p = .03, ηp2  = 0.08). No other main or interaction effects were significant (all p's> .15). Study findings demonstrate the potential of our culturally targeted print intervention. Lessons learned from this multisite pilot study for enhancing GC/GT in Latinas include the need to attend to both access to GC/GT and individual factors such as attitudes and knowledge.


Asunto(s)
Neoplasias de la Mama , Supervivientes de Cáncer , Neoplasias de la Mama/genética , Femenino , Asesoramiento Genético , Pruebas Genéticas , Hispánicos o Latinos , Humanos , Proyectos Piloto , Sobrevivientes
9.
Biol Blood Marrow Transplant ; 26(7): 1303-1311, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32361010

RESUMEN

Systemic glucocorticoids remain the standard treatment for gastrointestinal (GI) acute graft-versus-host disease (aGVHD) despite their toxicity and incomplete efficacy. Controlled trials have tested poorly absorbable steroids as adjuncts with systemic glucocorticoids, but only small case series have reported treatment with poorly absorbed beclomethasone dipropionate (BDP) and budesonide (BUD) alone. Our team has adopted the practice of administering BDP or BDP+BUD without systemic glucocorticoids as first-line therapy for isolated upper GI (UGI) aGVHD. We report results in 76 patients treated with BDP alone and in 81 patients treated with BDP+BUD, with allocation by physician choice. Almost all patients received peripheral blood stem cells (92%) from a fully HLA-matched related or unrelated donor (80%) after myeloablative conditioning (76%) for acute leukemia (49%), myelodysplastic syndrome (17%), non-Hodgkin lymphoma (14%), or another hematopoietic disorders (20%). After 28 days of treatment with BDP, 46% of the patients had a complete response (CR) and 10% had a partial response (PR); after 200 days, 61 (80%) patients were alive, 34% maintained a CR, and 3% maintained a PR, whereas 53% required additional immunosuppression (IS). After 28 days of treatment with BDP+BUD, 67% had a CR and 10% a PR; after 200 days, 74 (91%) patients were alive, 46% maintained a CR, and 2% maintained a PR, whereas 43% required additional IS. Among the entire cohort of 157 patients, 66 (42%) were treated successfully without systemic glucocorticoids. This study reports the efficacy of poorly absorbable steroids alone for patients with isolated UGI aGVHD. Prospective trials should test for the potential advantages of BDP and BUD use over systemic glucocorticoids.


Asunto(s)
Antiinflamatorios , Beclometasona , Budesonida , Enfermedad Injerto contra Huésped , Adulto , Anciano , Antiinflamatorios/uso terapéutico , Beclometasona/uso terapéutico , Budesonida/uso terapéutico , Femenino , Enfermedad Injerto contra Huésped/tratamiento farmacológico , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos
10.
Cancer ; 126(15): 3464-3470, 2020 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-32453456

RESUMEN

BACKGROUND: Regorafenib is an oral multikinase inhibitor targeting angiogenesis, oncogenesis, and cancer proliferation/metastasis. This study evaluated the efficacy of regorafenib in refractory biliary tract cancer (BTC) in a multi-institutional phase 2 study. METHODS: Patients with BTC who progressed on at least 1 line of systemic therapy received regorafenib at 160 mg daily for 21 days on and 7 days off. The primary endpoint was 6-month overall survival (OS), and the secondary endpoints were median OS, progression-free survival (PFS), and objective response rates. Pretreatment plasma was collected for cytokine evaluation. RESULTS: A total of 39 patients were enrolled, and 33 were evaluable for efficacy. The median PFS and OS were 3.7 and 5.4 months, respectively, with survival rates of 46.2% at 6 months, 35.9% at 12 months, and 25.6% at 18 months for the intention-to-treat population. For the 33 evaluable patients who received regorafenib for at least 3 weeks, the median PFS and OS were 3.9 and 6.7 months, respectively, with survival rates of 51.5% at 6 months, 39.4% at 12 months, and 27.3% at 18 months. The objective response rate was 9.1%, and the disease control rate was 63.6%. Twenty-eight patients (71.8%) experienced grade 3/4 adverse events. Among the 23 cytokines analyzed, elevated baseline vascular endothelial growth factor D (VEGF-D) was associated with shorter PFS, whereas elevated baseline interleukin 6 (IL-6) and glycoprotein 130 (GP130) were associated with shorter OS. CONCLUSIONS: Regorafenib demonstrated modest clinical efficacy in heavily pretreated patients with BTC. Further exploration of biomarkers is warranted to identify a group of patients with BTC who may benefit from regorafenib.


Asunto(s)
Neoplasias del Sistema Biliar/tratamiento farmacológico , Colangiocarcinoma/tratamiento farmacológico , Compuestos de Fenilurea/administración & dosificación , Piridinas/administración & dosificación , Factor D de Crecimiento Endotelial Vascular/genética , Adulto , Anciano , Anciano de 80 o más Años , Inhibidores de la Angiogénesis/administración & dosificación , Inhibidores de la Angiogénesis/efectos adversos , Neoplasias del Sistema Biliar/epidemiología , Neoplasias del Sistema Biliar/genética , Neoplasias del Sistema Biliar/patología , Colangiocarcinoma/epidemiología , Colangiocarcinoma/patología , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/epidemiología , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/patología , Femenino , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Humanos , Masculino , Persona de Mediana Edad , Compuestos de Fenilurea/efectos adversos , Supervivencia sin Progresión , Piridinas/efectos adversos
11.
Ann Surg Oncol ; 27(5): 1659-1670, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-31677107

RESUMEN

BACKGROUND: Black women are overrepresented among premenopausal breast cancer (BC) survivors. These patients warrant genetic testing (GT) followed by risk-reducing behaviors. This study documented patterns and predictors of cancer risk-management behaviors among young black BC survivors after GT. METHODS: Black women (n = 143) with a diagnosis of BC at the age of 50 years or younger received GT. At 1 year after GT, participants reported receipt of risk-reducing mastectomy, risk-reducing salpingo-oophorectomy, mammogram, breast magnetic resonance imaging (MRI), CA125 test, and transvaginal/pelvic ultrasound. Logistic regression was used to examine predictors of BC risk management (risk-reducing mastectomy or breast MRI) and ovarian cancer risk management (risk-reducing salpingo-oophorectomy, CA125 test, or transvaginal/pelvic ultrasound). RESULTS: Of the study participants, 16 (11%) were BRCA1/2-positive, 43 (30%) had a variant of uncertain significance, and 84 (59%) were negative. During the 12 months after GT, no women received risk-reducing mastectomy. The majority (93%) received a mammogram, and a smaller proportion received breast MRI (33%), risk-reducing salpingo-oophorectomy (10%), CA125 test (11%), or transvaginal/pelvic ultrasound (34%). Longer time since the BC diagnosis predicted lower likelihood of BC risk management (odds ratio [OR] 0.54). BRCA1/2 carrier status (OR 4.57), greater perceived risk of recurrence (OR 8.03), and more hereditary breast and ovarian cancer knowledge (OR 1.37) predicted greater likelihood of ovarian cancer risk management. CONCLUSIONS: Young black BC survivors appropriately received mammograms and ovarian cancer risk management based on their BRCA1/2 test result. However, the low usage of MRI among BRCA1/2 carriers contrasts with national guidelines. Future research should examine barriers to MRI among black BC survivors. Finally, modifiable variables predicting risk management after GT were identified, providing implications for future interventions.


Asunto(s)
Neoplasias de la Mama/etnología , Pruebas Genéticas/estadística & datos numéricos , Mastectomía/estadística & datos numéricos , Neoplasias Ováricas/etnología , Neoplasias Ováricas/prevención & control , Salpingooforectomía/estadística & datos numéricos , Adulto , Negro o Afroamericano/estadística & datos numéricos , Neoplasias de la Mama/genética , Neoplasias de la Mama/mortalidad , Antígeno Ca-125 , Supervivientes de Cáncer , Femenino , Genes BRCA1 , Genes BRCA2 , Predisposición Genética a la Enfermedad , Humanos , Modelos Logísticos , Estudios Longitudinales , Imagen por Resonancia Magnética , Persona de Mediana Edad , Mutación , Neoplasias Ováricas/genética , Medición de Riesgo , Estados Unidos/epidemiología
12.
Haematologica ; 105(2): 398-406, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-31073071

RESUMEN

In older patients with acute myeloid leukemia, the more frequent presence of biologically inherent therapy-resistant disease and increased comorbidities translate to poor overall survival and therapeutic challenges. Optimal front-line therapies for older patients with acute myeloid leukemia remain controversial. We retrospectively evaluated survival outcomes in 980 elderly (≥70 years) acute myeloid leukemia patients from a single institution between 1995 and 2016. Four treatment categories were compared: high-intensity (daunorubicin/cytarabine or equivalent), hypomethylating agent, low-intensity (low-dose cytarabine or similar without hypomethylating agents), and supportive care therapy (including hydroxyurea). At a median follow up of 20.5 months, the median overall survival for the entire cohort was 7.1 months. Multivariate analysis identified secondary acute myeloid leukemia, poor-risk cytogenetics, performance status, front-line therapy, age, white blood cell count, platelet count, and hemoglobin level at diagnosis as having an impact on survival. High-intensity therapy was used in 360 patients (36.7%), hypomethylating agent in 255 (26.0%), low-intensity therapy in 91 (9.3%), and supportive care in 274 (28.0%). Pairwise comparisons between hypomethylating agent therapy and the three other treatment groups demonstrated statistically significant superior median overall survival with hypomethylating agent [14.4 months) vs high-intensity therapy 10.8 months, hazard ratio 1.35, 95% confidence interval (CI): 1.10-1.65; P =0.004], low-intensity therapy (5.9 months, hazard ratio 2.01, 95%CI: 1.53-2.62; P<0.0001), and supportive care (2.1 months, hazard ratio 2.94, 95%CI: 2.39-3.61; P<0.0001). Our results indicate a significant survival benefit with hypomethylating agents compared to high-intensity, low-intensity, or supportive care. Additionally, high-intensity chemotherapy resulted in superior overall outcomes compared to low-intensity therapy and supportive care. Results from this study highlight the need for novel therapeutic approaches besides utilization of intensive chemotherapy in this specific aged population.


Asunto(s)
Leucemia Mieloide Aguda , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Citarabina/uso terapéutico , Análisis Citogenético , Humanos , Leucemia Mieloide Aguda/diagnóstico , Leucemia Mieloide Aguda/tratamiento farmacológico , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Resultado del Tratamiento
13.
J Genet Couns ; 29(3): 410-422, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-31912597

RESUMEN

Despite higher incidence and mortality of breast cancer among younger Black women, genetic testing outcomes remain severely understudied among Blacks. Past research on disclosure of genetic testing results to family members has disproportionately focused on White, educated, high socioeconomic status women. This study addresses this gap in knowledge by assessing (a) to whom Black women disclose genetic test results and (b) if patterns of disclosure vary based on test result (e.g., BRCA1/2 positive, negative, variant of uncertain significance [VUS]). Black women (N = 149) with invasive breast cancer diagnosed age ≤50 years from 2009 to 2012 received free genetic testing through a prospective, population-based study. At 12 months post-testing, women reported with whom they shared their genetic test results. The exact test by binomial distribution was used to examine whether disclosure to female relatives was significantly greater than disclosure to male relatives, and logistic regression analyses tested for differences in disclosure to any female relative, any male relative, parents, siblings, children, and spouses by genetic test result. Most (77%) women disclosed their results to at least one family member. Disclosure to female relatives was significantly greater than disclosure to males (p < .001). Compared to those who tested negative or had a VUS, BRCA1/2-positive women were significantly less likely to disclose results to their daughters (ORBRCApositive  = 0.25, 95% CI = 0.07-0.94, p = .041) by 12 months post-genetic testing. Genetic test result did not predict any other type of disclosure (all ps > 0.12). Results suggest that in Black families, one benefit of genetic testing-to inform patients and their family about cancer risk information-is not being realized. To increase breast cancer preventive care among high-risk Black women, the oncology care team should prepare Black BRCA1/2-positive women to share genetic test results with family members and, in particular, their daughters.


Asunto(s)
Negro o Afroamericano/genética , Neoplasias de la Mama/genética , Familia , Invasividad Neoplásica/genética , Revelación de la Verdad , Adulto , Neoplasias de la Mama/patología , Niño , Revelación , Femenino , Genes BRCA1 , Genes BRCA2 , Pruebas Genéticas/métodos , Humanos , Masculino , Persona de Mediana Edad
14.
Invest New Drugs ; 37(3): 473-481, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30298303

RESUMEN

Background Androgens were shown to play a key role in the growth and progression of pancreatic cancer. We evaluated the safety and tolerability of the combination of enzalutamide, a novel androgen receptor (AR) antagonist with gemcitabine and nab-paclitaxel as a first-line treatment in advanced pancreatic cancer. Methods We used the standard 3 + 3 dose escalation design with cohort expansion to evaluate 2 dose levels of enzalutamide: 80 mg and 160 mg/day orally (phase 1a) in combination with gemcitabine and nab-paclitaxel in metastatic pancreatic cancer patients. In the expansion phase (phase 1b), AR+ was a pre-requisite criterion. We also evaluated the full pharmacokinetic (PK) profile for nab-paclitaxel and enzalutamide. Results We enrolled 24 patients, 12 patients in phase 1a and 12 patients in phase 1b. The median age was 68 (range, 32-84) years. No DLTs were observed. Grade 3/4 treatment related adverse events included neutropenia (44%), anemia (40%), leukopenia (24%), nausea and vomiting (20%), diarrhea (16%), infections (12%), thrombocytopenia (8%), thromboembolic event (8%), hypertension (8%), hypokalemia (8%), hyponatremia (8%), and ALT elevation (8%). Median overall survival and progression-free survival was 9.73 [95%CI:9.73-13.5] and 7.53 (95%CI:6.05-12.8) months, respectively. PK analysis suggests that the combination therapy does not impact the kinetics of either drug evaluated. Enzalutamide reached steady-state levels between day 22 and 29 and the mean half-life of nab-paclitaxel was 19.6 ± 4.7 h. Conclusions Enzalutamide 160 mg daily in combination with gemcitabine and nab-paclitaxel can be safely administered with no unexpected toxicities. We also noticed preliminary signals of efficacy with this combination.


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Pancreáticas/tratamiento farmacológico , Adenocarcinoma/metabolismo , Adenocarcinoma/patología , Adulto , Anciano , Anciano de 80 o más Años , Albúminas/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Benzamidas , Biomarcadores de Tumor/metabolismo , Desoxicitidina/administración & dosificación , Desoxicitidina/análogos & derivados , Femenino , Estudios de Seguimiento , Humanos , Masculino , Dosis Máxima Tolerada , Persona de Mediana Edad , Nitrilos , Paclitaxel/administración & dosificación , Neoplasias Pancreáticas/metabolismo , Neoplasias Pancreáticas/patología , Feniltiohidantoína/administración & dosificación , Feniltiohidantoína/análogos & derivados , Pronóstico , Tasa de Supervivencia , Distribución Tisular , Gemcitabina
15.
J Natl Compr Canc Netw ; 17(9): 1059-1064, 2019 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-31487688

RESUMEN

BACKGROUND: Information about the frequency of cannabinoid use and the clinical characteristics of its users in oncology supportive care is limited. This study explored associations between cannabinoid use and cancer-related clinical characteristics in a cancer population. PATIENTS AND METHODS: This retrospective review included 332 patients who had a urine drug test (UDT) for tetrahydrocannabinol (THC) together with completion of an Edmonton Symptom Assessment Scale (ESAS) and cannabinoid history questionnaire on the same day that urine was obtained during 1 year in the supportive care clinic. RESULTS: The frequency of positive results for THC in a UDT was 22.9% (n=76). Significant statistical differences were seen between THC-positive and THC-negative patients for age (median of 52 [lower quartile, 44; upper quartile, 56] vs 58 [48; 67] years; P<.001), male sex (53.9% vs 39.5%; P=.034), and past or current cannabinoid use (65.8% vs 26.2%; P<.001). Statistical significance was observed in ESAS items between the THC-positive and THC-negative groups for pain (7 [lower quartile, 5; upper quartile; 8] vs 5 [3; 7]; P=.001), nausea (1 [0; 3] vs 0 [0; 3]; P=.049), appetite (4 [2; 7] vs 3 [0; 5.75]; P=.015), overall well-being (5.5 [4; 7] vs 5 [3; 6]; P=.002), spiritual well-being (5 [2; 6] vs 3 [1; 3]; P=.015), insomnia (7 [5; 9] vs 4 [2; 7]; P<.001), and total ESAS (52 [34; 66] vs 44 [29; 54]; P=.001). Among patients who reported current or past cannabinoid use, THC-positive patients had higher total scores and scores for pain, appetite, overall well-being, spiritual well-being, and insomnia than THC-negative patients. CONCLUSIONS: Patients with cancer receiving outpatient supportive care who had positive UDT results for THC had higher symptom severity scores for pain, nausea, appetite, overall and spiritual well-being, and insomnia compared with their THC-negative counterparts. These results highlight potential opportunities to improve palliative care.


Asunto(s)
Atención Ambulatoria , Cannabinoides , Utilización de Medicamentos , Neoplasias/epidemiología , Cuidados Paliativos , Pautas de la Práctica en Medicina , Adulto , Anciano , Anciano de 80 o más Años , Atención Ambulatoria/estadística & datos numéricos , Cannabinoides/administración & dosificación , Utilización de Medicamentos/estadística & datos numéricos , Femenino , Humanos , Masculino , Oncología Médica/métodos , Oncología Médica/normas , Persona de Mediana Edad , Oportunidad Relativa , Cuidados Paliativos/estadística & datos numéricos , Estudios Retrospectivos , Adulto Joven
16.
Psychooncology ; 28(5): 980-988, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30883986

RESUMEN

OBJECTIVE: Breast cancer (BC) survivors with a genetic mutation are at higher risk for subsequent cancer; knowing genetic risk status could help survivors make decisions about follow-up screening. Uptake of genetic counseling and testing (GC/GT) to determine BRCA status is low among high risk BC survivors. This study assessed feasibility, acceptability, and preliminary efficacy of a newly developed psychoeducational intervention (PEI) for GC/GT. METHODS: High risk BC survivors (N = 119) completed a baseline questionnaire and were randomized to the intervention (PEI video/booklet) or control (factsheet) group. Follow-up questionnaires were completed 2 weeks after baseline (T2), and 4 months after T2 (T3). We analyzed recruitment, retention (feasibility), whether the participant viewed study materials (acceptability), intent to get GC/GT (efficacy), and psychosocial outcomes (eg, perceived risk, Impact of Events Scale [IES]). t tests or chi-square tests identified differences between intervention groups at baseline. Mixed models examined main effects of group, time, and group-by-time interactions. RESULTS: Groups were similar on demographic characteristics (P ≥ .05). Of participants who completed the baseline questionnaire, 91% followed through to study completion and 92% viewed study materials. A higher percentage of participants in the intervention group moved toward GC/GT (28% vs 8%; P = .027). Mixed models demonstrated significant group-by-time interactions for perceived risk (P = .029), IES (P = .027), and IES avoidance subscale (P = .012). CONCLUSIONS: The PEI was feasible, acceptable, and efficacious. Women in the intervention group reported greater intentions to pursue GC, greater perceived risk, and decreased avoidance. Future studies should seek to first identify system-level barriers and facilitators before aiming to address individual-level barriers.


Asunto(s)
Neoplasias de la Mama/psicología , Neoplasias de la Mama/terapia , Supervivientes de Cáncer/psicología , Asesoramiento Genético/psicología , Tamizaje Masivo/psicología , Satisfacción del Paciente , Adulto , Neoplasias de la Mama/genética , Toma de Decisiones , Femenino , Pruebas Genéticas/métodos , Humanos , Persona de Mediana Edad , Folletos , Factores de Riesgo , Encuestas y Cuestionarios
18.
Breast J ; 25(1): 117-123, 2019 01.
Artículo en Inglés | MEDLINE | ID: mdl-30488655

RESUMEN

We used the Health Belief Model (HBM) to explore factors associated with readiness for genetic counseling among breast cancer survivors. Breast cancer survivors meeting NCCN genetic counseling referral criteria completed questionnaires capturing demographic and clinical information and factors guided by the HBM, including health beliefs, psychosocial variables, and cues to action. Using logistic regression, we examined whether the above variables differed based on readiness group (pre-contemplators, who did not plan to make a genetic counseling appointment, and contemplators, who planned to make a genetic counseling appointment in the next 1-6 months). Of 111 participants, 57% were pre-contemplators and 43% were contemplators. Higher cancer worry was associated with increased odds of being a contemplator (OR = 2.99; 95% CI = 1.37-6.54) and higher perceived barriers to genetic counseling were associated with decreased odds of being a contemplator (OR = 0.31; 95% CI = 0.11-0.85). Those who reported a family member encouraged them to get tested were more likely to be contemplators (OR = 3.57; 95% CI = 1.19-10.70). Our results suggest key factors for predicting genetic counseling readiness include cancer worry, perceived barriers, and family influence. There is need for increased genetic counseling awareness. Better understanding of factors related to survivors' decisions about counseling can inform tailored interventions to improve uptake and ultimately reduce cancer recurrence risk.


Asunto(s)
Actitud Frente a la Salud , Neoplasias de la Mama/psicología , Supervivientes de Cáncer/psicología , Asesoramiento Genético/psicología , Anciano , Femenino , Predisposición Genética a la Enfermedad/psicología , Humanos , Modelos Logísticos , Persona de Mediana Edad , Modelos Teóricos , Factores de Riesgo , Estados Unidos
19.
Cancer Immunol Immunother ; 67(12): 1853-1862, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30209589

RESUMEN

The GM.CD40L vaccine, which recruits and activates dendritic cells, migrates to lymph nodes, activating T cells and leading to systemic tumor cell killing. When combined with the CCL21 chemokine, which recruits T cells and enhances T-cell responses, additive effects have been demonstrated in non-small cell lung cancer mouse models. Here, we compared GM.CD40L versus GM.CD40L plus CCL21 (GM.CD40L.CCL21) in lung adenocarcinoma patients with ≥ 1 line of treatment. In this phase I/II randomized trial (NCT01433172), patients received intradermal vaccines every 14 days (3 doses) and then monthly (3 doses). A two-stage minimax design was used. During phase I, no dose-limiting toxicities were shown in three patients who received GM.CD40L.CCL21. During phase II, of evaluable patients, 5/33 patients (15.2%) randomized for GM.DCD40L (p = .023) and 3/32 patients (9.4%) randomized for GM.DCD40L.CCL21 (p = .20) showed 6-month progression-free survival. Median overall survival was 9.3 versus 9.5 months with GM.DCD40L versus GM.DCD40L.CCL21 (95% CI 0.70-2.25; p = .44). For GM.CD40L versus GM.CD40L.CCL21, the most common treatment-related adverse events (TRAEs) were grade 1/2 injection site reaction (51.4% versus 61.1%) and grade 1/2 fatigue (35.1% versus 47.2%). Grade 1 immune-mediated TRAEs were isolated to skin. No patients showed evidence of pseudo-progression or immune-related TRAEs of grade 1 or greater of pneumonitis, endocrinopathy, or colitis, and none discontinued treatment due to toxicity. Although we found no significant associations between vaccine immunogenicity and outcomes, in limited biopsies, one patient treated with GMCD40L.CCL21 displayed abundant tumor-infiltrating lymphocytes. This possible effectiveness warrants further investigation of GM.CD40L in combination approaches.


Asunto(s)
Adenocarcinoma/terapia , Ligando de CD40/administración & dosificación , Vacunas contra el Cáncer/administración & dosificación , Carcinoma de Pulmón de Células no Pequeñas/terapia , Quimiocina CCL21/administración & dosificación , Factor Estimulante de Colonias de Granulocitos y Macrófagos/administración & dosificación , Inmunoterapia , Adenocarcinoma/inmunología , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Pulmón de Células no Pequeñas/inmunología , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Pulmonares/inmunología , Neoplasias Pulmonares/terapia , Masculino , Persona de Mediana Edad , Pronóstico , Tasa de Supervivencia
20.
Haematologica ; 103(3): 531-539, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29242294

RESUMEN

T-helper 1 and T-helper 17 lymphocytes mediate acute graft-versus-host disease (GvHD). Interleukin 12 is critical for T-helper 1 differentiation and interleukin 23 for T-helper 17 maintenance. Interleukin 12 and 23 are heterodimeric cytokines that share the p40 subunit (IL-12/IL-23p40). In a randomized, blinded, placebo-controlled trial, we examined the biological impact and clinical outcomes following IL-12/IL-23p40 neutralization using ustekinumab. Thirty patients received peripheral blood mobilized hematopoietic cell transplantation (HCT) from HLA-matched sibling or unrelated donors, received sirolimus plus tacrolimus as GvHD prophylaxis, and were randomized to ustekinumab versus placebo with 1:1 allocation after stratification by donor type. The primary end point of the trial was the mean percentage (%) T-regulatory (Treg) cells on day 30 post HCT. Ustekinumab was delivered by subcutaneous injection on day -1 and day +20 after transplantation. On day 30 post transplant, no significant difference in % Treg was observed. Ustekinumab suppressed serum IL-12/IL-23p40 levels. Host-reactive donor alloresponse at days 30 and 90 after transplantation was polarized with significant reduction in IL-17 and IFN-α production and increase in IL-4. No toxicity attributed to ustekinumab was observed. Overall survival and National Institute of Health moderate/severe chronic GvHD-free, relapse-free survival were significantly improved among ustekinumab-treated patients. No significant improvements were observed in acute or chronic GvHD, relapse, or non-relapse mortality. These data provide first evidence that IL-12/IL-23p40 neutralization can polarize donor anti-host alloresponse in vivo and provide initial clinical efficacy evidence to be tested in subsequent trials. (Trial registered at clinicaltrials.gov identifier: 01713400).


Asunto(s)
Trasplante de Células Madre Hematopoyéticas/efectos adversos , Interleucina-12/antagonistas & inhibidores , Subunidad p19 de la Interleucina-23/antagonistas & inhibidores , Células TH1/inmunología , Células Th17/inmunología , Ustekinumab/administración & dosificación , Adulto , Anciano , Femenino , Enfermedad Injerto contra Huésped/etiología , Enfermedad Injerto contra Huésped/prevención & control , Neoplasias Hematológicas/mortalidad , Neoplasias Hematológicas/terapia , Trasplante de Células Madre Hematopoyéticas/métodos , Humanos , Masculino , Persona de Mediana Edad , Trasplante Homólogo , Ustekinumab/efectos adversos , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA