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1.
Eur J Immunol ; : e2451049, 2024 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-39219238

RESUMEN

Surgical resection is the primary treatment approach for patients with breast cancer. Despite optimal multimodal treatment, metastatic recurrence remains a risk. Surgery-mediated systemic inflammation and local tissue inflammation generate an immunosuppressive and wound-healing environment that may accelerate cancer recurrence and metastasis post-operatively. Investigating the impact of surgery on local and systemic inflammation may provide knowledge for improvement of patient prognosis and treatment opportunities. Systemic cytokines were quantified in the blood plasma of patients with breast cancer pre-operatively, early post-operatively, and late post-operatively. Early post-operative levels of IL-6 were significantly elevated in patients who underwent mastectomy compared with wide local excision. Post-operative IL-6 levels correlate with clinicopathological features (age and BMI). The transcriptomes of local matched tumour and normal tumour adjacent (normal) breast tissue, from patients with breast cancer, were analysed by RNA-Seq. Elevated gene expressions of IL6, ADIPOQ, FABP4, LPL, PPARG, and CD36 in normal tissue were associated with worse overall survival of patients with ER-positive breast cancer. In tissue with higher expression of IL6 and ADIPOQ, a higher abundance of M2-like macrophage gene expression was identified. This study revealed perioperative systemic dynamics of inflammatory mediators and identified local immune-adipose-metabolism gene expression in tumour-adjacent tissue associated with pro-tumour function.

2.
Oncologist ; 2024 Jun 21.
Artículo en Inglés | MEDLINE | ID: mdl-38906704

RESUMEN

INTRODUCTION: Early discontinuation of endocrine therapy (ET) is higher among patients with early breast cancer (EBC) compared to patients with metastatic hormone receptor-positive (HR+) breast cancer (MBC). In our clinical experience the reasons for this may include a significant burden of ET side effects impacting quality of life (QOL) in patients with EBC.  We hypothesized that QOL is lower in patients with HR + EBC compared to patients with HR + MBC on ET. METHODS: We conducted a cross-sectional observational study to assess QOL utilizing FACT-ES & EORTC QLQ C30 tools among patients with EBC and MBC receiving ET across 5 Irish hospitals. RESULTS: A total of 417 patients were enrolled-EBC (79% n = 331) and MBC 21% (n = 86). Using the FACT-ES, we found no difference in overall QOL by stage (139.2 vs 141, P  = .33). Patients with HR + MBC had a lower symptom burden from ET compared to HR + EBC (61.4 vs 54, P < .01). In adjusted multivariate linear regression models, there was no difference in QOL for patients with EBC and MBC receiving ET. CONCLUSIONS: There was no significant difference in overall QOL for patients with EBC and MBC. However, patients with EBC experienced more endocrine symptoms. In adjusted multivariate linear regression models, the stage did not predict QOL. Our results suggest that endocrine symptoms are significant contributors to impaired QOL for patients with EBC but the role of other determinants of QOL (eg, stage) is less clear. Future work could include the development of stage-specific QOL tools and utilization of electronic patient-reported outcomes (ePROs) to identify and manage emergent toxicities.

3.
Psychooncology ; 33(1): e6254, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38047708

RESUMEN

BACKGROUND: Supporting those living with and beyond cancer to self-manage their health can optimise health-related quality of life and reduce symptom burden. Self-management support (SMS) programmes have been shown to be effective, but uptake is often low. This qualitative study aimed to identify experienced and perceived enablers and barriers to accessing SMS services among those who had completed primary cancer treatment and were living with and beyond cancer. METHODS: Participants were recruited through social media and cancer advocacy groups. Semi-structured telephone and online interviews were conducted. Transcripts were coded inductively based on participants' reported experiences. Statements related to factors that enable or inhibit access to SMS were then mapped to the Theoretical Domains Framework (TDF). RESULTS: Twenty-six people participated. Six themes explain the factors that act as barriers and enablers which mapped to 11 TDF domains. Lack of knowledge of available SMS was a prominent barrier, as well as inaccessible services due to timing and place of delivery. Lack of confidence and emotional factors including fear were barriers to seeking SMS. Social influences shaped knowledge, attitudes and readiness to access SMS. Perceptions of SMS service goals and if in alignment with self-identity, intentions and goals also shaped decisions around accessing support. CONCLUSIONS: While lack of knowledge and provider signposting were common barriers, findings suggest that other psychosocial and emotional factors may be barriers, even if SMS services are accessible. Findings are relevant for oncology healthcare services developing strategies to increase reach of SMS for those living with and beyond cancer.


Asunto(s)
Neoplasias , Automanejo , Humanos , Calidad de Vida , Investigación Cualitativa , Cuidados Paliativos , Intención , Neoplasias/terapia
4.
Euro Surveill ; 29(17)2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38666398

RESUMEN

An out-of-season increase in cases of invasive Group A streptococcus (iGAS) was observed in Ireland between October 2022 and August 2023. We describe the management of an iGAS outbreak involving three nursing home residents in Ireland in early 2023. A regional Department of Public Health was notified of an iGAS case in a nursing home resident in January 2023. When two further cases among residents were notified 7 days later, an outbreak was declared. Surveillance for GAS/iGAS infection in residents and staff was undertaken. The site was visited to provide infection prevention and control (IPC) support. Isolates were emm typed. A total of 38 residents and 29 staff in contact with resident cases were provided with antibiotic chemoprophylaxis. Seven additional staff with no direct resident contact also received chemoprophylaxis after finding one probable localised GAS infection among them. No more iGAS cases subsequently occurred.Site visit recommendations included advice on terminal cleaning and cleaning of shared equipment, as well as strengthening staff education on hand hygiene and masking. All isolates were of emm subtype 18.12, a subtype not previously detected in Ireland. Key outbreak control measures were rapid delivery of IPC support and chemoprophylaxis. Emm18 is infrequently associated with GAS infections.


Asunto(s)
Brotes de Enfermedades , Casas de Salud , Infecciones Estreptocócicas , Streptococcus pyogenes , Humanos , Infecciones Estreptocócicas/epidemiología , Infecciones Estreptocócicas/microbiología , Streptococcus pyogenes/genética , Streptococcus pyogenes/aislamiento & purificación , Irlanda/epidemiología , Antibacterianos/uso terapéutico , Femenino , Anciano , Masculino , Control de Infecciones/métodos , Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , Anciano de 80 o más Años , Proteínas de la Membrana Bacteriana Externa/genética
5.
Oncologist ; 28(5): 460-e298, 2023 05 08.
Artículo en Inglés | MEDLINE | ID: mdl-37010988

RESUMEN

BACKGROUND: Multiple preclinical studies have shown cytotoxic synergy involving combinations of poly (ADP-ribose) polymerase (PARP) inhibitors and topoisomerase 1 (TOP1) inhibitors, but such combinations have proven too toxic in clinical trials. Liposomal irinotecan (nal-IRI) achieved similar intratumoral exposure with better antitumor activity than the conventional TOP1 inhibitor irinotecan in preclinical models. Tumor targeted delivery of TOP1 inhibitor using nal-IRI and an intermittent schedule of administration of PARP inhibitor may provide a tolerable combination. METHODS: A phase I study was performed to evaluate the safety and tolerability of escalating doses of nal-IRI and the PARP inhibitor veliparib in patients with solid tumors resistant to standard treatments. Nal-IRI was administered on days 1 and 15 and veliparib on days 5-12 and 19-25 in 28-day cycles. RESULTS: Eighteen patients were enrolled across 3 dose levels. Five patients encountered dose-limiting toxicities, including grade 3 diarrhea lasting more than 72 h in 3 patients and 1 patient each with grade 4 diarrhea and grade 3 hyponatremia. The most common grade 3 or 4 toxicities included diarrhea (50% of patients), nausea (16.6%), anorexia, and vomiting (11.1% each) (Table 1). There was no difference in frequencies of adverse events based on UGT1A1*28 status or prior opioid use (Table 1). CONCLUSION: The clinical trial was terminated due to high frequency of unacceptable gastrointestinal toxicities, which precluded dose escalation of veliparib in combination with nal-IRI (ClinicalTrials.gov Identifier: NCT02631733).


Asunto(s)
Antineoplásicos , Neoplasias , Humanos , Irinotecán/farmacología , Irinotecán/uso terapéutico , Inhibidores de Poli(ADP-Ribosa) Polimerasas/efectos adversos , Neoplasias/tratamiento farmacológico , Neoplasias/patología , Antineoplásicos/uso terapéutico , Inhibidores de Topoisomerasa I/efectos adversos , Poli(ADP-Ribosa) Polimerasas , Diarrea/inducido químicamente , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos
6.
Breast Cancer Res Treat ; 202(1): 191-201, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37589839

RESUMEN

PURPOSE: A 3-biomarker homologous recombination deficiency (HRD) score is a key component of a currently FDA-approved companion diagnostic assay to identify HRD in patients with ovarian cancer using a threshold score of ≥ 42, though recent studies have explored the utility of a lower threshold (GIS ≥ 33). The present study evaluated whether the ovarian cancer thresholds may also be appropriate for major breast cancer subtypes by comparing the genomic instability score (GIS) distributions of BRCA1/2-deficient estrogen receptor-positive breast cancer (ER + BC) and triple-negative breast cancer (TNBC) to the GIS distribution of BRCA1/2-deficient ovarian cancer. METHODS: Ovarian cancer and breast cancer (ER + BC and TNBC) tumors from ten study cohorts were sequenced to identify pathogenic BRCA1/2 mutations, and GIS was calculated using a previously described algorithm. Pathologic complete response (pCR) to platinum therapy was evaluated in a subset of TNBC samples. For TNBC, a threshold was set and threshold validity was assessed relative to clinical outcomes. RESULTS: A total of 560 ovarian cancer, 805 ER + BC, and 443 TNBC tumors were included. Compared to ovarian cancer, the GIS distribution of BRCA1/2-deficient samples was shifted lower for ER + BC (p = 0.015), but not TNBC (p = 0.35). In the subset of TNBC samples, univariable logistic regression models revealed that GIS status using thresholds of ≥ 42 and ≥ 33 were significant predictors of response to platinum therapy. CONCLUSIONS: This study demonstrated that the GIS thresholds used for ovarian cancer may also be appropriate for TNBC, but not ER + BC. GIS thresholds in TNBC were validated using clinical response data to platinum therapy.


Asunto(s)
Neoplasias Ováricas , Neoplasias de la Mama Triple Negativas , Humanos , Femenino , Proteína BRCA1/genética , Platino (Metal) , Proteína BRCA2/genética , Neoplasias de la Mama Triple Negativas/tratamiento farmacológico , Neoplasias de la Mama Triple Negativas/epidemiología , Neoplasias de la Mama Triple Negativas/genética , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/epidemiología , Neoplasias Ováricas/genética , Inestabilidad Genómica , Recombinación Homóloga
7.
J Natl Compr Canc Netw ; 21(9): 915-923.e1, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37673107

RESUMEN

BACKGROUND: Observational data investigating the relationship between body habitus and outcomes in breast cancer have been variable and inconsistent, largely centered in the curative setting and focused on weight-based metrics. This study evaluated the impact of muscle measures on outcomes in patients with metastatic breast cancer receiving endocrine-based therapy. METHODS: Baseline CT scans were collected from ECOG-ACRIN E2112, a randomized phase III placebo-controlled study of exemestane with or without entinostat. A CT cross-sectional image at the L3 level was extracted to obtain skeletal muscle mass and attenuation. Low muscle mass (LMM) was defined as skeletal muscle index <41 cm2/m2 and low muscle attenuation (LMA) as muscle density <25 HU or <33 HU if overweight/obese by body mass index (BMI). Multivariable Cox proportional hazard models determined the association between LMM or LMA and progression-free survival (PFS) and overall survival (OS). Correlations between LMM, LMA, and patient-reported outcomes were determined using 2-sample t tests. RESULTS: Analyzable CT scans and follow-up data were available for 540 of 608 patients. LMM was present in 39% (n=212) of patients and LMA in 56% (n=301). Those with LMA were more likely to have obesity and worse performance status. LMM was not associated with survival (PFS hazard ratio [HR]: 1.13, P=.23; OS HR: 1.05, P=.68), nor was LMA (PFS HR: 1.01, P=.93; OS HR: 1.00, P=.99). BMI was not associated with survival. LMA, but not LMM, was associated with increased frequency of patient-reported muscle aches. CONCLUSIONS: Both low muscle mass and density are prevalent in patients with hormone receptor-positive metastatic breast cancer. Muscle measures correlated with obesity and performance status; however, neither muscle mass nor attenuation were associated with prognosis. Further work is needed to refine body composition measurements and select optimal cutoffs with meaningful endpoints in specific breast cancer populations, particularly those living with metastatic disease.


Asunto(s)
Neoplasias de la Mama , Humanos , Femenino , Neoplasias de la Mama/tratamiento farmacológico , Músculo Esquelético/diagnóstico por imagen , Benchmarking , Índice de Masa Corporal , Obesidad/complicaciones
8.
Psychooncology ; 32(8): 1192-1207, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37434307

RESUMEN

OBJECTIVE: The prognosis for individuals with metastatic breast cancer (MBC) has improved in recent decades. This expanding cohort has unique psychological and psychosocial needs, yet targeted supportive care interventions are underdeveloped. This systematic review seeks to summarise the available evidence on the effectiveness of supportive care interventions in improving quality of life and symptom experience of individuals living with MBC so that services can be developed to address the unmet needs of this cohort in future. METHODS: Academic Search Complete, CINAHL, ERIC, Medline and SocINDEX were searched for publications investigating the effect of supportive care interventions specifically targeted at addressing the quality of life or symptom experience of individuals living with MBC. Three reviewers independently screened and selected studies. Quality appraisal and assessed risk of bias were carried out. RESULTS: The search yielded 1972 citations. Thirteen studies met the inclusion criteria. Interventions included psychological (n = 3), end of life discussion and preparation (n = 2), physical activity (n = 4), lifestyle (n = 2), and medication self-management support (n = 2). Three studies reported significant improvement in quality of life, two of which reported improved symptom experience in at least one symptom. Three further physical activity interventions showed improvement in at least one of the symptoms investigated. CONCLUSION: Studies reporting a statistically significant effect on quality of life and improved symptom experience were extremely heterogenous. We can tentatively suggest that multimodal and frequently administered interventions are effective, with physical activity interventions positively impacting on symptom experience, however further research is required.


Asunto(s)
Neoplasias de la Mama , Calidad de Vida , Humanos , Femenino , Neoplasias de la Mama/terapia , Neoplasias de la Mama/psicología , Ejercicio Físico
9.
Omega (Westport) ; : 302228231196620, 2023 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-37670454

RESUMEN

The COVID-19 pandemic compounded isolation for patients through social distancing measures and staff shortages. We were concerned about the impact of COVID-19 on the quality of care provided at end-of-life in 2021 in a national cancer centre, and instigated the first ever review of the care of the dying. Quality of care was assessed retrospectively using a validated instrument developed by the United Kingdom's National Quality Board. Sixty-six patient deaths occurred in our cancer centre in 2021. The 'risk of dying' was documented in 65.2% of records. Palliative care services were involved in 77%, and pastoral care in 10.6%. What was important to the patient was documented in 24.2%. The 'quality-of-death' score was satisfactory for most but poor in 21.2%. Our study prompted change, including appointment of an end-of-life coordinator, development of a checklist to ensure comprehensive communication, expansion of the end-of-life committee to include junior doctors, and regular audit.

10.
Br J Cancer ; 125(1): 28-37, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33941878

RESUMEN

BACKGROUND: This Phase 1 study assessed the safety and efficacy of the Porcupine inhibitor, WNT974, in patients with advanced solid tumours. METHODS: Patients (n = 94) received oral WNT974 at doses of 5-30 mg once-daily, plus additional dosing schedules. RESULTS: The maximum tolerated dose was not established; the recommended dose for expansion was 10 mg once-daily. Dysgeusia was the most common adverse event (50% of patients), likely resulting from on-target Wnt pathway inhibition. No responses were seen by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1; 16% of patients had stable disease (median duration 19.9 weeks). AXIN2 expression by RT-PCR was reduced in 94% of paired skin biopsies (n = 52) and 74% of paired tumour biopsies (n = 35), confirming inhibition of the Wnt pathway. In an exploratory analysis, an inverse association was observed between AXIN2 change and immune signature change in paired tumour samples (n = 8). CONCLUSIONS: Single-agent WNT974 treatment was generally well tolerated. Biomarker analyses suggest that WNT974 may influence immune cell recruitment to tumours, and may enhance checkpoint inhibitor activity. CLINICAL TRIAL REGISTRATION: NCT01351103.


Asunto(s)
Proteína Axina/genética , Inhibidores Enzimáticos/administración & dosificación , Neoplasias/tratamiento farmacológico , Pirazinas/administración & dosificación , Piridinas/administración & dosificación , Administración Oral , Adulto , Anciano , Inhibidores Enzimáticos/farmacocinética , Femenino , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/genética , Pirazinas/farmacocinética , Piridinas/farmacocinética , Resultado del Tratamiento , Vía de Señalización Wnt/efectos de los fármacos
11.
BMC Cancer ; 21(1): 527, 2021 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-33971839

RESUMEN

BACKGROUND: Incidence of breast cancer continues to rise in low- and middle-income countries, with data from the East African country of Tanzania predicting an 82% increase in breast cancer from 2017 to 2030. We aimed to characterize treatment pathways, receipt of therapies, and identify high-value interventions to increase concordance with international guidelines and avert unnecessary breast cancer deaths. METHODS: Primary data were extracted from medical charts of patients presenting to Bugando Medical Center, Tanzania, with breast concerns and suspected to have breast cancer. Clinicopathologic features were summarized with descriptive statistics. A Poisson model was utilized to estimate prevalence ratios for variables predicted to affect receipt of life-saving adjuvant therapies and completion of therapies. International and Tanzanian guidelines were compared to current care patterns in the domains of lymph node evaluation, metastases evaluation, histopathological diagnosis, and receptor testing to yield concordance scores and suggest future areas of focus. RESULTS: We identified 164 patients treated for suspected breast cancer from April 2015-January 2019. Women were predominantly post-menopausal (43%) and without documented insurance (70%). Those with a confirmed histopathology diagnosis (69%) were 3 times more likely to receive adjuvant therapy (PrR [95% CI]: 3.0 [1.7-5.4]) and those documented to have insurance were 1.8 times more likely to complete adjuvant therapy (1.8 [1.0-3.2]). Out of 164 patients, 4% (n = 7) received concordant care based on the four evaluated management domains. The first most common reason for non-concordance was lack of hormone receptor testing as 91% (n = 144) of cases did not undergo this testing. The next reason was lack of lymph node evaluation (44% without axillary staging) followed by absence of abdominopelvic imaging in those with symptoms (35%) and lack of histopathological confirmation (31%). CONCLUSIONS: Patient-specific clinical data from Tanzania show limitations of current breast cancer management including axillary staging, receipt of formal diagnosis, lack of predictive biomarker testing, and low rates of adjuvant therapy completion. These findings highlight the need to adapt and adopt interventions to increase concordance with guidelines including improving capacity for pathology, developing complete staging pathways, and ensuring completion of prescribed adjuvant therapies.


Asunto(s)
Neoplasias de la Mama/terapia , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/patología , Quimioterapia Adyuvante , Femenino , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Retrospectivos
12.
Kidney Int ; 95(3): 518-525, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30691691

RESUMEN

Staphylococcus aureus bloodstream infection can have potentially catastrophic consequences for patients on hemodialysis. Consequently, an effective vaccine to prevent S aureus infection would have a significant influence on morbidity and mortality in this group. To date, however, efforts to develop a vaccine have been unsuccessful. Previous antibody-inducing vaccine candidates did not prevent or attenuate S aureus infection in clinical trials. Recent advances have helped to elucidate the role of specific T-cell subsets, notably T-helper cell 1 and T-helper cell 17, in the immune response to S aureus. These cells are essential for coordinating an effective phagocytic response via cytokine production, indirectly leading to destruction of the organism. It is now widely accepted that next-generation S aureus vaccines must also induce effective T-cell-mediated immunity. However, there remains a gap in our knowledge: how will an S aureus vaccine drive these responses in those patients most at risk? Given that patients on hemodialysis are an immunocompromised population, in particular with specific T-cell defects, including defects in T-helper cell subsets, this is likely to affect their ability to respond to an S aureus vaccine. We urgently need a better understanding of T-cell-mediated immunity in this cohort if an efficacious vaccine is ever to be realized for these patients.


Asunto(s)
Fallo Renal Crónico/terapia , Diálisis Renal/efectos adversos , Infecciones Estafilocócicas/prevención & control , Vacunas Estafilocócicas/uso terapéutico , Staphylococcus aureus/inmunología , Animales , Ensayos Clínicos como Asunto , Análisis Costo-Beneficio , Modelos Animales de Enfermedad , Humanos , Inmunidad Celular , Fallo Renal Crónico/inmunología , Infecciones Estafilocócicas/economía , Infecciones Estafilocócicas/etiología , Vacunas Estafilocócicas/economía , Linfocitos T Colaboradores-Inductores/inmunología , Resultado del Tratamiento , Vacunación/métodos
13.
Breast Cancer Res Treat ; 177(1): 127-136, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31165374

RESUMEN

PURPOSE: Family is often overlooked in cancer care. We developed a patient-family agenda setting intervention to engage family in cancer care communication. METHODS: We conducted a pilot randomized controlled trial (NCT03283553) of patients on active treatment for breast cancer and their family "care partner." Intervention dyads (n = 69) completed a self-administered checklist to clarify care partner roles, establish a shared visit agenda, and facilitate MyChart patient portal access. Control dyads (n = 63) received usual care. We assessed intervention acceptability and initial effects from post-visit surveys and MyChart utilization at 6 weeks. RESULTS: At baseline, most patients (89.4%) but few care partners (1.5%) were registered for MyChart. Most patients (79.4%) wanted their care partner to have access to their records and 39.4% of care partners reported accessing MyChart. In completing the checklist, patients and care partners endorsed active communication roles for the care partner and identified a similar visit agenda: most (> 90%) reported the checklist was easy, useful, and recommended it to others. At 6 weeks, intervention (vs control) care partners were more likely to be registered for MyChart (75.4% vs 1.6%; p < 0.001), to have logged in (43.5% vs 0%; p < 0.001) and viewed clinical notes (30.4% vs 0%; p < 0.001), but were no more likely to exchange direct messages with clinicians (1.5% vs 0%; p = 0.175). No differences in patients' MyChart use were observed, but intervention patients more often viewed clinical notes (50.7% vs 9.5%; p < 0.001). CONCLUSIONS: A patient-family agenda setting intervention was acceptable and affected online practices of cancer patients and care partners.


Asunto(s)
Neoplasias de la Mama/epidemiología , Cuidadores , Atención al Paciente , Adulto , Anciano , Comunicación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Aceptación de la Atención de Salud , Relaciones Médico-Paciente , Factores de Tiempo
14.
Invest New Drugs ; 37(2): 315-322, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30191522

RESUMEN

Overexpression and cellular mis-localization of aurora kinase A (AURKA) in gastrointestinal cancers results in chromosomal instability, activation of multiple oncogenic pathways, and inhibition of pro-apoptotic signaling. Inhibition of AURKA causes mitotic delays, severe chromosome congression, and activation of p53/p73 leading to cell death. Our preclinical data showed cooperative activity with the AURKA inhibitor alisertib and platinum agents in cell lines and xenografts, and suggested an optimal treatment window. Therefore, this study was designed to determine the maximum-tolerated dose (MTD) of alisertib in combination with modified FOLFOX (mFOLFOX), as this is a standard platinum-based therapy for gastrointestinal cancers. Standard 3 + 3 dose escalation was used, where the starting dose of alisertib was 10 mg twice daily (Days 1-3), with leucovorin (400 mg/m2) and oxaliplatin (85 mg/m2) on Day 2 followed by continuous 46-h 5-FU (2400 mg/m2) infusion on Days 2-4 in 14-day cycles. Fourteen patients with advanced gastrointestinal cancers were enrolled and two doses explored; two patients were not evaluable for dose-limiting toxicity (DLT) and replaced. Two patients experienced DLTs at 20 mg of alisertib (Grade 3 fatigue (n = 2); Grade 3 nausea, vomiting, dehydration with hospitalization (n = 1)). MTD was 10 mg alisertib with 85 mg/m2 oxaliplatin and 2400 mg/m2 5-FU. Most frequent toxicities were nausea (57%), diarrhea, fatigue, neuropathy, and vomiting (43%), and anorexia and anemia (36%); most were Grade 1-2. One patient with colorectal cancer had a partial response of 12 evaluable patients, and four patients had stable disease. Alisertib in combination with mFOLFOX did not demonstrate unexpected side effects, but the regimen was only tolerable at the lowest dose investigated.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Aurora Quinasa A/antagonistas & inhibidores , Neoplasias Gastrointestinales/tratamiento farmacológico , Regulación Enzimológica de la Expresión Génica/efectos de los fármacos , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Azepinas/administración & dosificación , Femenino , Fluorouracilo/administración & dosificación , Neoplasias Gastrointestinales/metabolismo , Neoplasias Gastrointestinales/patología , Humanos , Leucovorina/administración & dosificación , Masculino , Dosis Máxima Tolerada , Persona de Mediana Edad , Compuestos Organoplatinos/administración & dosificación , Pronóstico , Pirimidinas/administración & dosificación , Tasa de Supervivencia , Distribución Tisular
15.
BMC Med Educ ; 19(1): 408, 2019 Nov 07.
Artículo en Inglés | MEDLINE | ID: mdl-31699068

RESUMEN

BACKGROUND: Clinical Microbiology is a core subject in medical undergraduate curricula. However, students struggle to cover the content and clinically contextualise basic microbiology. Our aim was to evaluate student engagement with new e-learning material and to investigate the impact it had on examination performance in a Clinical Microbiology module. METHODS: An online resource was designed to support didactic teaching in a Fundamentals of Clinical Microbiology module. One cohort of students had access to the online material (2017/2018 class) and the other did not (2016/2017 class). Each cohort sat the same multiple-choice question (MCQ) and short-note question (SNQ) examination papers and the impact of engagement with the online resource and examination performance was analysed. RESULTS: Both groups were of the same academic standard prior to beginning the module. In the 2017/2018 cohort, 227/309 (73.5%) students had ≥80% engagement with the content. Students engaged most with the index of pathogens and pathogen focused clinical cases related to diverse genera and families of clinically important microorganisms. A statistically higher difference in the mean percentage grade in both the MCQ and SNQ examinations was seen for 2017/2018 compared to 2016/2017 cohort. For the MCQ examination, the 2017/2018 cohort were on average 5.57% (95% confidence interval (CI): 3.92 to 7.24%; P < 0.001) higher, and for the SNQ examination the 2017/2018 cohort were on average 2.08% (95% CI: 0.74 to 3.41%; P = 0.02) higher. When the results were adjusted for previous examination performance, for every percentage increase in online engagement the grade in the SNQ examination only increased by 0.05% (95% CI: 0.02 to 0.08) on average. CONCLUSIONS: These findings suggest students engage with e-learning when studying and that such activities may help students perform better in assessments.


Asunto(s)
Competencia Clínica , Instrucción por Computador , Educación de Pregrado en Medicina , Evaluación Educacional , Microbiología/educación , Estudiantes de Medicina , Educación de Pregrado en Medicina/métodos , Femenino , Humanos , Internet , Masculino
16.
Cancer ; 124(9): 1904-1911, 2018 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-29381193

RESUMEN

BACKGROUND: Human epidermal growth factor receptor 2 (HER2)-targeted therapies are highly effective at preventing breast cancer recurrence but are associated with cardiotoxicity in some patients, and minimal data are available regarding racial disparities in the incidence of this toxicity. The authors conducted a retrospective study to analyze the association of black or white race with treatment-induced cardiotoxicity and incomplete therapy among patients with HER2-positive early breast cancer. METHODS: Women with HER2-positive, stage I through III breast cancer who initiated (neo)adjuvant HER2-targeted therapy (trastuzumab with or without pertuzumab) from January 2005 to March 2015 at the authors' institution were eligible. We analyzed differences in the incidence of cardiotoxicity (a decline in the left ventricular ejection fraction to <50% AND an absolute drop in the left ventricular ejection fraction of ≥10% from baseline) and incomplete therapy (<52 weeks of HER2-targeted therapy) between black and white women in univariate and multivariable analyses. RESULTS: The authors identified 59 black patients and 157 white patients who had a median follow-up 5.2 years. The median patient age was 53 years and was similar for black and white patients. The 1-year cardiotoxicity incidence was 12% overall (95% confidence interval [CI], 7%-16%), 24% in black women (95% CI, 12%-34%), and 7% in white women (95% CI, 3%-11%). Black patients had a significantly greater probability of incomplete therapy compared with white patients (odds ratio, 4.61; 95% CI, 1.70-13.07; P = .002). High correlation was observed between a cardiotoxicity event and incomplete therapy (96% concordance). CONCLUSIONS: Black patients have a higher rate of cardiotoxicity and resultant incomplete adjuvant HER2-targeted therapy than white patients. This patient population may benefit from enhanced cardiac surveillance, cardioprotective strategies, and early referral to cardiology when appropriate. Cancer 2018;124:1904-11. © 2018 American Cancer Society.


Asunto(s)
Antineoplásicos Inmunológicos/efectos adversos , Neoplasias de la Mama/terapia , Cardiotoxicidad/etnología , Disparidades en el Estado de Salud , Receptor ErbB-2/antagonistas & inhibidores , Adulto , Anciano , Anciano de 80 o más Años , Anticuerpos Monoclonales Humanizados/administración & dosificación , Anticuerpos Monoclonales Humanizados/efectos adversos , Antineoplásicos Inmunológicos/administración & dosificación , Población Negra/estadística & datos numéricos , Neoplasias de la Mama/inmunología , Neoplasias de la Mama/patología , Cardiotoxicidad/etiología , Cardiotoxicidad/prevención & control , Quimioterapia Adyuvante/efectos adversos , Quimioterapia Adyuvante/métodos , Femenino , Estudios de Seguimiento , Humanos , Mastectomía , Persona de Mediana Edad , Terapia Neoadyuvante/efectos adversos , Terapia Neoadyuvante/métodos , Recurrencia Local de Neoplasia/prevención & control , Estadificación de Neoplasias , Receptor ErbB-2/inmunología , Receptor ErbB-2/metabolismo , Estudios Retrospectivos , Trastuzumab/administración & dosificación , Trastuzumab/efectos adversos , Población Blanca/estadística & datos numéricos
17.
Breast Cancer Res Treat ; 167(1): 107-116, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-28918548

RESUMEN

BACKGROUND: Methylated gene markers have shown promise in predicting breast cancer outcomes and treatment response. We evaluated whether baseline and changes in tissue and serum methylation levels would predict pathological complete response (pCR) in patients with HER2-negative early breast cancer undergoing preoperative chemotherapy. METHODS: The TBCRC008 trial investigated pCR following 12 weeks of preoperative carboplatin and albumin-bound paclitaxel + vorinostat/placebo (n = 62). We measured methylation of a 10-gene panel by quantitative multiplex methylation-specific polymerase chain reaction and expressed results as cumulative methylation index (CMI). We evaluated association between CMI level [baseline, day 15 (D15), and change] and pCR using univariate and multivariable logistic regression models controlling for treatment and hormone receptor (HR) status, and performed exploratory subgroup analyses. RESULTS: In univariate analysis, one log unit increase in tissue CMI levels at D15 was associated with 40% lower chance of obtaining pCR (odds ratio, OR 0.60, 95% CI 0.37-0.97; p = 0.037). Subgroup analyses suggested a significant association between tissue D15 CMI levels and pCR in vorinostat-treated [OR 0.44 (0.20, 0.93), p = 0.03], but not placebo-treated patients. CONCLUSION: In this study investigating the predictive roles of tissue and serum CMI levels in patients with early breast cancer for the first time, we demonstrate that high D15 tissue CMI levels may predict poor response. Larger studies and improved analytical procedures to detect methylated gene markers in early stage breast cancer are needed. TBCRC008 is registered on ClinicalTrials.gov (NCT00616967).


Asunto(s)
Biomarcadores de Tumor/sangre , Neoplasias de la Mama/tratamiento farmacológico , Metilación de ADN/efectos de los fármacos , Ácidos Hidroxámicos/administración & dosificación , Adulto , Anciano , Neoplasias de la Mama/sangre , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , ADN de Neoplasias/efectos adversos , ADN de Neoplasias/sangre , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Ácidos Hidroxámicos/efectos adversos , Persona de Mediana Edad , Proteínas de Neoplasias/genética , Paclitaxel/administración & dosificación , Paclitaxel/efectos adversos , Periodo Preoperatorio , Vorinostat
18.
Breast Cancer Res Treat ; 171(1): 121-129, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-29752687

RESUMEN

PURPOSE: Aromatase inhibitor-associated musculoskeletal symptoms (AIMSS) are common adverse events of AIs often leading to drug discontinuation. We initiated a prospective clinical trial to evaluate whether bisphosphonates are associated with reduced incidence of AIMSS. METHODS: In the single-arm trial, the Zoledronic Acid Prophylaxis (ZAP) trial, we compared the incidence of AIMSS against historical controls from the Exemestane and Letrozole Pharmacogenomics (ELPh) trial. Eligible women were postmenopausal with stage 0-III breast cancer planning to receive adjuvant AIs. AIMSS was assessed using the Health Assessment Questionnaire and Visual Analog Scale over 12 months in both trials. Participants in the ZAP trial received zoledronic acid prior to initiating letrozole and after 6 months; ELPh participants included in the analysis were taking letrozole but not bisphosphonates. We analyzed patient-reported outcomes (PROs) and bone density in the ZAP trial using mixed-effects linear regression models and paired t tests, respectively. RESULTS: From 2011 to 2013, 59 postmenopausal women enrolled in ZAP trial. All 59 (100%) women received baseline and 52 (88%) received 6-month zoledronic acid, and had similar characteristics to historical controls from the ELPh trial (n = 206). Cumulatively during the first year of AI, 37 and 67% of ZAP and ELPh participants reported AIMSS (p < 0.001), respectively. Within the ZAP trial, we did not observe significant changes in other PROs; however, we report improvements in bone mineral density. CONCLUSIONS: Compared to historical controls, zoledronic acid administered concomitantly with adjuvant AIs was associated with a reduced incidence of AIMSS. A randomized controlled trial is required to confirm these findings.


Asunto(s)
Antineoplásicos/efectos adversos , Inhibidores de la Aromatasa/efectos adversos , Conservadores de la Densidad Ósea/uso terapéutico , Enfermedades Musculoesqueléticas/etiología , Enfermedades Musculoesqueléticas/prevención & control , Ácido Zoledrónico/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Antineoplásicos/uso terapéutico , Inhibidores de la Aromatasa/uso terapéutico , Densidad Ósea/efectos de los fármacos , Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/tratamiento farmacológico , Difosfonatos/uso terapéutico , Femenino , Humanos , Persona de Mediana Edad , Oportunidad Relativa , Modelos de Riesgos Proporcionales , Resultado del Tratamiento
19.
Invest New Drugs ; 36(6): 1158, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30334109

RESUMEN

The authors would like to note that the investigator affiliations have been corrected to reflect the actual affiliations of each author. The authors would also like to note an amendment to the first name of the second author. Nilo Azad was changed to reflect the full name of the author, which is Nilofer S. Azad as shown above. The original article has been corrected.

20.
Br J Nurs ; 27(20): S34-S40, 2018 Nov 08.
Artículo en Inglés | MEDLINE | ID: mdl-30418847

RESUMEN

Moisture-associated skin damage, especially incontinence-associated dermatitis, continues to present significant health challenges and requires multidisciplinary input to provide effective prevention and treatment. In the absence of mandatory reporting such damage is under- or wrongfully reported, resulting in a lack of accurate data on prevalence and costs of associated care. In March this year, a multidisciplinary team of experts met in the UK to seek to determine measures to improve patient skin care. They aimed to identify activities to increase awareness and education, collect data, and improve prevention and treatment regimes. This article describes that discussion and the conclusions made by the group, such as the key actions required to effect policy changes.


Asunto(s)
Dermatitis/prevención & control , Úlcera Cutánea/prevención & control , Congresos como Asunto , Dermatitis/etiología , Humanos , Guías de Práctica Clínica como Asunto , Úlcera por Presión/etiología , Úlcera por Presión/prevención & control , Úlcera Cutánea/etiología , Reino Unido
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