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1.
BMC Cancer ; 22(1): 276, 2022 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-35291965

RESUMEN

BACKGROUND: AGITG DOCTOR was a randomised phase 2 trial of pre-operative cisplatin, 5 fluorouracil (CF) followed by docetaxel (D) with or without radiotherapy (RT) based on poor early response to CF, detected via PET, for resectable oesophageal adenocarcinoma. This study describes PROs over 2 years. METHODS: Participants (N = 116) completed the EORTC QLQ-C30 and oesophageal module (QLQ-OES18) before chemotherapy (baseline), before surgery, six and 12 weeks post-surgery and three-monthly until 2 years. We plotted PROs over time and calculated the percentage of participants per treatment group whose post-surgery score was within 10 points (threshold for clinically relevant change) of their baseline score, for each PRO scale. We examined the relationship between Grade 3+ adverse events (AEs) and PROs. This analysis included four groups: CF responders, non-responders randomised to DCF, non-responders randomised to DCF + RT, and "others" who were not randomised. RESULTS: Global QOL was clinically similar between groups from 6 weeks post-surgery. All groups had poorer functional and higher symptom scores during active treatment and shortly after surgery, particularly the DCF and DCF + RT groups. DCF + RT reported a clinically significant difference (-13points) in mean overall health/QOL between baseline and pre-surgery. Similar proportions of patients across groups scored +/- 10 points of baseline scores within 2 years for most PRO domains. Instance of grade 3+ AEs were not related to PROs at baseline or 2 years. CONCLUSIONS: By 2 years, similar proportions of patients scored within 10 points of baseline for most PRO domains, with the exception of pain and insomnia for the DCF + RT group. Non-responders randomised to DCF or DCF + RT experienced additional short-term burden compared to CF responders, reflecting the longer duration of neoadjuvant treatment and additional toxicity. This should be weighed against clinical benefits reported in AGITG DOCTOR. This data will inform communication of the trajectory of treatment options for early CF non-responders. TRIAL REGISTRATION: Australia New Zealand Clinical Trials Registry (ANZCTR), ACTRN12609000665235 . Registered 31 July 2009.


Asunto(s)
Adenocarcinoma , Terapia Neoadyuvante , Adenocarcinoma/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Humanos , Terapia Neoadyuvante/métodos , Medición de Resultados Informados por el Paciente , Calidad de Vida
2.
Ann Oncol ; 33(2): 204-215, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34710571

RESUMEN

BACKGROUND: Antitumor activity of ipilimumab or BRAF ± MEK inhibitors (BRAFi ± MEKi) following pembrolizumab administration in melanoma is poorly characterized. PATIENTS AND METHODS: In the phase III KEYNOTE-006 study, patients with unresectable stage III/IV melanoma received pembrolizumab (10 mg/kg) once every 2 or 3 weeks (Q3W) or ipilimumab (3 mg/kg) Q3W. The current post hoc analysis evaluates outcomes with ipilimumab or BRAFi ± MEKi as first subsequent systemic therapy after pembrolizumab administration and includes patients who completed or discontinued pembrolizumab after one or more dose. Pembrolizumab arms were pooled. RESULTS: At data cut-off (4 December 2017), median follow-up was 46.9 months. Of 555 pembrolizumab-treated patients, first subsequent therapy was ipilimumab for 103 (18.6%) and BRAFi ± MEKi for 59 (10.6%) [33 received BRAFi + MEKi, 26 BRAFi alone; 37 (62.7%) were BRAFi ± MEKi naïve]. In the subsequent ipilimumab group, ORR with previous pembrolizumab was 17.5% [1 complete response (CR); 17 partial response (PR)]; 79.6% had discontinued pembrolizumab due to progressive disease (PD); median overall survival (OS) was 21.5 months. ORR with subsequent ipilimumab was 15.5%; 11/16 responses (8 CRs; 3 PRs) were ongoing. ORR with subsequent ipilimumab was 9.7% for patients with PD as best response to pembrolizumab. Median OS from ipilimumab initiation was 9.8 months. In the subsequent BRAFi ± MEKi group, ORR with previous pembrolizumab was 13.5% (8 PR); 76.3% had discontinued pembrolizumab due to PD; median OS was 17.9 months. ORR with subsequent BRAFi ± MEKi was 30.5%, 7/18 responses (4 CR, 3 PR) were ongoing. Median OS from BRAFi ± MEKi initiation was 12.9 months. ORR for BRAFi ± MEKi-naïve patients who received subsequent BRAFi ± MEKi was 43.2%; 6/16 were ongoing (3 CR, 3 PR). CONCLUSIONS: Ipilimumab and BRAFi ± MEKi have antitumor activity as first subsequent therapy after pembrolizumab in patients with advanced melanoma.


Asunto(s)
Melanoma , Proteínas Proto-Oncogénicas B-raf , Anticuerpos Monoclonales Humanizados , Humanos , Ipilimumab/efectos adversos , Melanoma/patología , Quinasas de Proteína Quinasa Activadas por Mitógenos/uso terapéutico
3.
Ann Oncol ; 31(2): 236-245, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31959340

RESUMEN

BACKGROUND: Patients with oesophageal/gastro-oesophageal junction adenocarcinoma (EAC) not showing early metabolic response (EMR) to chemotherapy have poorer survival and histological response rates <5%. We investigated whether tailoring neoadjuvant therapy can improve outcomes in these patients. PATIENTS AND METHODS: Patients with resectable EAC were enrolled and randomised into two single-arm, multicentre phase II trials. After induction cisplatin and 5-fluorouracil (CF), all were assessed by day 15 positron emission tomography (PET). Patients with an EMR [maximum standardised uptake values (SUVmax) ≥35% reduction from baseline to day 15 PET] received a second CF cycle then oesophagectomy. Non-responders were randomised 1 : 1 to two cycles of CF and docetaxel (DCF, n = 31) or DCF + 45 Gy radiotherapy (DCFRT, n = 35) then oesophagectomy. The primary end point was major histological response (<10% residual tumour) in the oesophagectomy specimen; secondary end points were overall survival (OS), progression-free survival (PFS), and locoregional recurrence (LR). RESULTS: Of 124 patients recruited, major histological response was achieved in 3/45 (7%) with EMR, 6/30 (20%) DCF, and 22/35 (63%) DCFRT patients. Grade 3/4 toxicities occurred in 12/45 (27%) EMR (CF), 13/31 (42%) DCF, and 25/35 (71%) DCFRT patients. No treatment-related deaths occurred. LR by 3 years was seen in 5/45 (11%) EMR, 10/31 (32%) DCF, and 4/35 (11%) DCFRT patients. PFS [95% confidence interval (CI)] at 36 months was 47% (31% to 61%) for EMR, 29% (15% to 45%) for DCF, and 46% (29% to 61%) for DCFRT patients. OS (95% CI) at 60 months was 53% (37% to 67%) for EMR, 31% (16% to 48%) for DCF, and 46% (29% to 61%) for DCFRT patients. CONCLUSIONS: EMR is associated with favourable OS, PFS, and low LR. For non-responders, the addition of docetaxel augmented histological response rates, but OS, PFS, and LR remained inferior compared with responders. DCFRT improved histological response and PFS/LR outcomes, matching the EMR group. Early PET/CT has the potential to tailor therapy for patients not showing an early response to chemotherapy. TRIAL REGISTRATION: ACTRN12609000665235.


Asunto(s)
Adenocarcinoma , Neoplasias Esofágicas , Adenocarcinoma/tratamiento farmacológico , Adenocarcinoma/radioterapia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Cisplatino/uso terapéutico , Docetaxel/uso terapéutico , Neoplasias Esofágicas/tratamiento farmacológico , Fluorouracilo/uso terapéutico , Humanos , Recurrencia Local de Neoplasia , Tomografía Computarizada por Tomografía de Emisión de Positrones , Resultado del Tratamiento
4.
BMC Cancer ; 18(1): 892, 2018 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-30217171

RESUMEN

BACKGROUND: Frailty is an indicator of physiological reserve in older people. In non-cancer settings, frailty indices are reliable predictors of adverse health outcomes. The aims of this study were to 1) derive and validate a frailty index (FI) from comprehensive geriatric assessment (CGA) data obtained in the solid tumour chemotherapy setting, and 2) to explore whether the FI-CGA could predict chemotherapy decisions and survival in older cancer patients with solid tumours. METHODS: Prospective cohort study of a consecutive series sample of 175 cancer patients aged 65 and older with solid tumours. A frailty index was calculated using an accumulated deficits model, coding items from the comprehensive geriatric assessment tool administered prior to chemotherapy decision-making. The domains of physical and cognitive functioning, nutrition, mood, basic and instrumental activities of daily living, and comorbidities were incorporated as deficits into the model. RESULTS: The FI-CGA had a right-skewed distribution, with median (interquartile range) of 0.27 (0.21-0.39). The 99% limit to deficit accumulation was below the theoretical maximum of 1.0, at 0.75. The FI-CGA was significantly related (p < 0.001) to vulnerability as assessed by the Vulnerable Elders Survey-13 and to medical oncologists' assessments of fitness or vulnerability to treatment. Baseline frailty as determined by the FI-CGA was also associated with treatment decisions (Treatment Terminated, Treatment Completed, No Planned Treatment) (p < 0.001), with the No Planned Treatment group significantly frailer than the other two groups. CONCLUSION: The FI-CGA is a potentially useful adjunct to cancer clinical decision-making that could predict chemotherapy outcomes in older patients with solid tumours.


Asunto(s)
Fragilidad/epidemiología , Evaluación Geriátrica , Neoplasias/epidemiología , Actividades Cotidianas , Anciano , Anciano de 80 o más Años , Femenino , Anciano Frágil , Fragilidad/fisiopatología , Humanos , Masculino , Neoplasias/fisiopatología , Neoplasias/terapia
5.
Artículo en Inglés | MEDLINE | ID: mdl-28513056

RESUMEN

Indigenous patient navigator (IPN) programmes show promise in addressing barriers to cancer care and facilitation of patient self-efficacy. The purpose of this paper is to describe and reflect upon the experience of training an IPN and implementation of the intervention in the Australian context with Indigenous cancer patients. Randomised clinical trial might provide the best available evaluation measure of an intervention but caution should be taken in the implementation process. Socio-cultural aspects and training can affect the conduct of this type of intervention. We report here five issues needing consideration prior to implementing such intervention. Specifically: (1) recognition of the collective bonds within Indigenous community and understanding by IPN of the degree of personal assistance perceived as not intrusive by the patient; (2) conduct ongoing evaluation of the different role of an IPN involved in this intervention care provider vs. researcher. (3) meaningful engagement develops from a trusting/collaborative relationship between research team and study site staff which may not occur in the study time frame; (4) existing skills as well as training provided may not translate in the IPN understanding and aligning with the study objectives/research values; (5) recruitment of participants requires innovative and highly flexible strategies to be successful.


Asunto(s)
Nativos de Hawái y Otras Islas del Pacífico , Neoplasias , Navegación de Pacientes , Competencia Cultural , Femenino , Humanos , Relaciones Interpersonales , Masculino , Persona de Mediana Edad , Evaluación de Necesidades , Proyectos Piloto , Desarrollo de Programa , Evaluación de Programas y Proyectos de Salud , Queensland , Investigación , Rol , Autoeficacia
6.
Support Care Cancer ; 25(5): 1597-1605, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-28078479

RESUMEN

PURPOSE: The purpose of this study was to explore Indigenous Australian cancer survivors' perspectives of follow-up cancer care and management.. METHODS: This is a qualitative study employing individual interviews with 21 Indigenous cancer survivors (13 females, 8 males) recruited from a rural primary health service and large tertiary hospital in Brisbane, Queensland. Yarning methods were used to conduct semi-structured interviews. Yarning is a culturally appropriate, informal conversational process emphasising the importance of storytelling. RESULTS: Findings describe a range of ways in which follow-up cancer care is experienced with four major categories elucidated, namely: links to tertiary health services, links to primary health services, communication between tertiary and primary health services, and lost in transition. Both positive and negative experiences were described; however, the importance of timely and informative discharge information, continuity of care, good communication between tertiary and primary health services, and strong therapeutic relationships were salient issues raised by participants. CONCLUSIONS: These findings highlight the importance of establishing strong therapeutic relationships between patients and tertiary and primary health professionals. Also important for survivorship is provision of discharge summaries or care plans at discharge for survivors and general practitioners as well as access to a range of allied health services. Alternative means for follow-up could be investigated for regional and rural survivors to facilitate convenient and cost-effective follow-up care. Finally, provision of responsive and flexible follow-up care to cater for the diverse range of needs and preferences of cancer survivors is required. A patient navigator available across the cancer continuum could go some way to addressing this.


Asunto(s)
Neoplasias/etnología , Adolescente , Adulto , Cuidados Posteriores , Anciano , Femenino , Estudios de Seguimiento , Servicios de Salud del Indígena , Humanos , Masculino , Persona de Mediana Edad , Nativos de Hawái y Otras Islas del Pacífico , Neoplasias/mortalidad , Investigación Cualitativa , Sobrevivientes , Adulto Joven
7.
Eur J Cancer Care (Engl) ; 25(2): 254-61, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26918690

RESUMEN

To investigate health professionals' perspectives about factors that impede or facilitate cancer care for Indigenous people. Semi-structured interviews with 22 health professionals involved in Indigenous cancer care. Data were interpreted using an inductive thematic analysis approach. Participants presented their perspectives on a number of barriers and enablers to Indigenous cancer care. Barriers were related to challenges with communication, the health system and coordination of care, issues around individual and community priorities and views of cancer treatment and health professional judgement. Enablers to cancer care were related to the importance of trust and rapport as well as health care system and support factors. The findings highlighted the need for recording of Indigenous status in medical records and a coordinated approach to the provision of evidence-based and culturally appropriate cancer care. This could go some way to improving Indigenous patient's engagement with tertiary cancer care services.


Asunto(s)
Actitud del Personal de Salud , Atención a la Salud , Nativos de Hawái y Otras Islas del Pacífico , Neoplasias/terapia , Adulto , Técnicos Medios en Salud , Australia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Enfermeras y Enfermeros , Oncólogos , Investigación Cualitativa , Oncólogos de Radiación
8.
Scand J Immunol ; 73(5): 496-504, 2011 May.
Artículo en Inglés | MEDLINE | ID: mdl-21284686

RESUMEN

Patterns of somatic mutation in IgE genes from allergic individuals have been a focus of study for many years, but IgE sequences have never been reported from parasitized individuals. To study the role of antigen selection in the evolution of the anti-parasite response, we therefore generated 118 IgE sequences from donors living in Papua New Guinea (PNG), an area of endemic parasitism. For comparison, we also generated IgG1, IgG2, IgG3 and IgG4 sequences from these donors, as well as IgG1 sequences from Australian donors. IgE sequences had, on average, 23.0 mutations. PNG IgG sequences had average mutation levels that varied from 17.7 (IgG3) to 27.1 (IgG4). Mean mutation levels correlated significantly with the position of their genes in the constant region gene locus (IgG3 < IgG1 < IgG2 < IgG4). Interestingly, given the heavy, life-long antigen burden experienced by PNG villagers, average mutation levels in IgG sequences were little different to that seen in Australian IgG1 sequences (19.2). Patterns of mutation provide clear evidence of antigen selection in many IgG sequences. The percentage of IgG sequences that showed significant accumulations of replacement mutations in the complementarity determining regions ranged from 22% of IgG3 sequences to 39% of IgG2 sequences. By contrast, only 12% of IgE sequences had such evidence of antigen selection, and this was significantly less than in PNG IgG1, IgG2 and IgG4 subclass sequences (P < 0.01). The anti-parasite IgE response therefore has the reduced evidence of antigen selection that has previously been reported in studies of IgE sequences from allergic individuals.


Asunto(s)
Antígenos Helmínticos/inmunología , Helmintiasis/inmunología , Helmintos/inmunología , Inmunoglobulina E/inmunología , Inmunoglobulina G/inmunología , Adulto , Animales , Variación Antigénica/genética , Variación Antigénica/inmunología , Antígenos Helmínticos/genética , Secuencia de Bases , Regiones Determinantes de Complementariedad/genética , Regiones Determinantes de Complementariedad/inmunología , Biología Computacional/métodos , Helmintiasis/parasitología , Helmintos/genética , Humanos , Inmunoglobulina E/sangre , Inmunoglobulina E/genética , Inmunoglobulina G/sangre , Inmunoglobulina G/genética , Persona de Mediana Edad , Modelos Inmunológicos , Datos de Secuencia Molecular , Mutación/inmunología , Papúa Nueva Guinea , Polimorfismo de Nucleótido Simple , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Población Rural , Alineación de Secuencia , Adulto Joven
9.
J Med Imaging Radiat Oncol ; 54(4): 368-74, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20718918

RESUMEN

The aim was to compare a private Commonwealth-initiated regional radiation oncology facility in Toowoomba with a Queensland Health facility (QHF) in Brisbane. The comparison concentrated on staffing, case mix and operational budgets, but was not able to look at changes in access to services. Data were collected from the two facilities from January 2008 to June 2008 inclusive. A number of factors were compared, including case mix, staffing levels, delay times for treatment, research, training and treatment costs. The case mix between the two areas was similar with curative treatments making up just over half the work load in both centres and two-thirds the work being made up of cancers of breast and prostate. Staffing levels were leaner in Toowoomba, especially in the areas of nursing, administration and trial coordinators. Research activity was slightly higher in Toowoomba. The average medicare cost per treatment course was similar in both centres ($5000 per course). Total costs of an average treatment including patient, State and Commonwealth costs, showed a 30% difference in costing favouring Toowoomba. This regional radiation oncology centre has provided state-of-the-art cancer care that is close to home for patients living in the Darling Downs region. Both public and private patients have been treated with modest costs to the patient and significant savings to QH. The case mix is similar to the QHF, and there has been significant activity in clinical research. A paperless working environment is one factor that has allowed staffing levels to be reduced. Ongoing support from Governments are required if private facilities are to participate in important ongoing staff training.


Asunto(s)
Instituciones Oncológicas/economía , Oncología por Radiación/economía , Servicios de Salud Rural/economía , Australia , Instituciones Oncológicas/organización & administración , Humanos , Queensland , Oncología por Radiación/organización & administración , Servicios de Salud Rural/organización & administración , Recursos Humanos
10.
Intern Med J ; 40(2): 126-32, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19220556

RESUMEN

AIM: To determine whether lung cancer radiation therapy waiting times in Queensland public hospitals are associated with distance of residence from the nearest treatment facility. METHODS: Retrospective analysis of radiation therapy waiting times of 1535 Queensland residents who were diagnosed with lung cancer from 2000 to 2004 and received radiation therapy as initial treatment at a public hospital. The effect of distance of residence from treatment centre on median waiting time was analysed by quantile regression controlling for sex, age, lung cancer histology, stage and therapeutic intent. RESULTS: The median waiting time from diagnosis to start of radiation therapy was 33 days for all patients. There was no significant difference (P = 0.141) in median waiting times in relation to distance of residence from a treatment centre. However, in most patients, waiting times were significantly longer than recommended by the Royal Australian and New Zealand College of Radiologists. Curative patients waited longer than palliative patients, while patients with earlier stage cancer waited longer than those with more advanced disease. CONCLUSION: Waiting times for radiation therapy among lung cancer patients in Queensland was not associated with distance from place of residence to the nearest public treatment facility. However, delays overall are excessive and are likely to worsen unless radiation treatment capabilities are enhanced to keep pace with population growth in Queensland.


Asunto(s)
Accesibilidad a los Servicios de Salud , Neoplasias Pulmonares/epidemiología , Neoplasias Pulmonares/radioterapia , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Queensland/epidemiología , Estudios Retrospectivos , Factores de Tiempo , Resultado del Tratamiento , Listas de Espera
11.
Pathology ; 41(4): 361-5, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19404849

RESUMEN

AIMS: Recommendations for the pathology reporting of breast cancer were released in Australia to ensure detailed communication of important prognostic features and good patient management. An audit of the reporting of invasive breast cancer in Queensland was conducted to determine how well these guidelines were utilised in 2004. METHODS: A random sample of reports was audited for inclusion of recommended criteria. The proportion of reports meeting each of the criteria was determined and compared across whether the report was in a synoptic report template or in a free text format. Comparison was made with published data from prior to the release of the recommendations. RESULTS: Of the 419 reports in the sample, at least 90% of reports included lesion size, histological type, histological grade, lymph node involvement, margins of excision, lymphovascular invasion, and changes in adjacent breast tissue individually, and 74% included all seven of these essential criteria. Synoptic reports accounted for 76% of the sample and were significantly more likely to have documented grade (p < 0.001), quadrant (p = 0.003), calcification (p < 0.001), lymphovascular invasion (p < 0.001), changes in non-neoplastic breast (p < 0.001) and ductal carcinoma in situ criteria (p < 0.001) compared with free text report format. The most notable improvements since the implementation of the recommendations were in documentation of adjacent breast tissue (92% versus 49%) and lymphovascular invasion (97% versus 54%). CONCLUSION: Breast cancer reporting in Queensland has improved since the implementation of the recommendations, however further improvements would likely be seen if there is more widespread utilisation of a synoptic report format.


Asunto(s)
Neoplasias de la Mama/patología , Adhesión a Directriz/estadística & datos numéricos , Registros Médicos/normas , Patología Quirúrgica/normas , Guías de Práctica Clínica como Asunto , Neoplasias de la Mama/cirugía , Femenino , Humanos , Auditoría Médica , Queensland
12.
Dermatology ; 218(1): 7-14, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-18832807

RESUMEN

BACKGROUND: Appropriate histopathology reporting helps to ensure effective therapy and prognosis. OBJECTIVE: To examine compliance with clinical practice guidelines for histopathology reports of melanomas. METHODS: A sample of melanoma histopathology reports in Queensland was audited for inclusion of recommended information. The quality of documentation was constructed and multivariate analysis used to determine factors affecting the quality of reporting practices. RESULTS: Documentation of the most important features of melanoma was high: clear diagnosis (99.8%; 95% CI 98.6-100), thickness (99.8%; 95% CI 98.6-100), comment on adequacy of excision (87.9%; 95% CI 84.9-91.0) and measurement of margins (91.9%; 95% CI 88.8-91.4). Overall reporting of ulceration and regression was of lesser completeness (83.0 and 77.8%, respectively) and these features were more likely to be reported by high-volume laboratories (p < 0.001 and p = 0.037, respectively). This trend was not apparent for other features. Fewer than 50% of reports documented mitotic rate per square millimetre, predominant cell type, microsatellites, growth phase and desmoplasia. CONCLUSION: Awareness of current reporting practices and identification of areas in which insufficiencies exist enable the revision of systems and potential improvements to the transfer of information to treating clinicians.


Asunto(s)
Registros Médicos/normas , Melanoma/patología , Neoplasias Cutáneas/patología , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Humanos , Incidencia , Auditoría Médica , Melanoma/diagnóstico , Melanoma/epidemiología , Melanoma/cirugía , Persona de Mediana Edad , Análisis Multivariante , Guías de Práctica Clínica como Asunto , Queensland/epidemiología , Proyectos de Investigación , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/cirugía
13.
Dis Esophagus ; 21(2): 151-8, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18269651

RESUMEN

Our aim was to determine if fluorodeoxyglucose positron emission tomography (FDG-PET) could be correlated with a pathological response in patients with esophageal adenocarcinoma receiving neoadjuvant chemotherapy and/or chemoradiation therapy. Patients with resectable, histologically proven adenocarcinoma of the esophagus were entered in the study. Preoperative chemotherapy comprised two cycles of cisplatin and 5-fluorouracil. Radiation therapy commenced with the second cycle on day 22. FDG-PET images were obtained pre-treatment and on completion of intended neo-adjuvant treatment. Quantification was achieved by the calculation of both standardized uptake values (SUV) and tumor/liver ratios (TLR). Evidence of histopathological response was identified according to the Mandard tumor regression scoring system. There were 45 patients, 22 receiving neoadjuvant chemotherapy and 23 chemoradiation therapy. Forty patients underwent surgical resection. Seven patients (16%) had a histopathological response. The mean percentage change in SUV in the histological responders group was -56.8% (SD 29) and in the non-responders -27.8% (SD 32.1) (P = 0.035). The mean percentage change in TLR was -49.1% (SD 44.8) in the responders and in the non-responders -27.3% (SD 31.3) (P = 0.128). There was no difference between the two methods of assessment, however there was less variation with SUV. There was no correlation between the FDG-PET response and the histopathological response. Presently an FDG-PET scan performed 3-6 weeks after neoadjuvant therapy for adenocarcinoma of the esophagus should not be used as a marker of the potential result of the treatment. The optimal timing of a second FDG-PET remains unclear.


Asunto(s)
Adenocarcinoma/diagnóstico por imagen , Adenocarcinoma/terapia , Neoplasias Esofágicas/diagnóstico por imagen , Neoplasias Esofágicas/terapia , Fluorodesoxiglucosa F18 , Tomografía de Emisión de Positrones , Radiofármacos , Humanos , Terapia Neoadyuvante
14.
Dis Esophagus ; 20(6): 471-7, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17958721

RESUMEN

Chemoradiotherapy (CRT) as a definitive treatment for esophageal cancer, is being used with increasing frequency and as a result, surgeons will be required to assess more patients who have residual or recurrent local malignancy. This article aimed to assess outcomes after esophagectomy following definitive CRT (dCRT) and compare any difference between them and patients who had preoperative neoadjuvant CRT (nCRT) using a similar regimen of chemotherapy. From a prospective database the details of patients who had a resection following nCRT and dCRT were analyzed. The main therapeutic difference between the groups was the dose of radiotherapy (35 vs 60 Gy) and the timing of the resection following completion of the CRT (median 4 vs 28 weeks). Fourteen patients had an esophagectomy following a dCRT and 53 had one following a nCRT. Preoperatively, the dCRT group had worse respiratory function and more ECG abnormalities. Preoperative tumor length, pathological TNM staging and R0 resection rates were the same in both groups. Post resection, the dCRT group had greater morbidity than the nCRT group, spending longer in the intensive care unit (median 48 vs 24 h), more days in hospital (median 31 vs 13) and having more severe respiratory complications (37%vs 6%). The operative mortality was higher in the dCRT group (7%vs 0%). The three-year survival was 24% after dCRT. Patients selected for salvage esophagectomy following dCRT are a major challenge in postoperative care. However, some patients survive for a reasonable period of time, making resection a worthwhile option.


Asunto(s)
Neoplasias Esofágicas/cirugía , Esofagectomía , Resultado del Tratamiento , Adulto , Anciano , Terapia Combinada , Neoplasias Esofágicas/tratamiento farmacológico , Neoplasias Esofágicas/radioterapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Terapia Recuperativa
15.
Eur J Cancer ; 43(12): 1829-32, 2007 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17631996

RESUMEN

This phase II study evaluated vinflunine in chemotherapy naive patients with metastatic melanoma. Vinflunine was administered at 350 mg/m(2) every 3 weeks, but after 9 patients this was reduced to 320 mg/m(2) based on interim analyses of all phase II trials. A partial response was observed in 1 of the first 9 patients (11.1%) treated at 350 mg/m(2), which gives a 3.0% [95% confidence interval (CI): 0.08-15.8] response rate in 33 patients. No change was the best response in 13 patients (39.4%) with progressive disease in 16 (48.5%) and 3 were not evaluable for response. The time to response was 1.4 months and duration was 6 months. At 350 mg/m(2) grade 4 neutropaenia occurred in 3 patients (33.3%) and grade 3 in 2 patients (22.2%) while at 320 mg/m(2) grade 4 neutropaenia occurred in 6 patients (25%) and grade 3 in 3 patients (12.5%) with 2 episodes of grade 3 febrile neutropaenia. Two patients (8.3%) had grade 3 anaemia. These results do not show activity at this dose and schedule for vinflunine in patients with chemotherapy naive metastatic melanoma.


Asunto(s)
Antineoplásicos Fitogénicos/administración & dosificación , Melanoma/tratamiento farmacológico , Melanoma/secundario , Neoplasias Cutáneas/tratamiento farmacológico , Vinblastina/análogos & derivados , Adulto , Anciano , Antineoplásicos Fitogénicos/efectos adversos , Femenino , Enfermedades Hematológicas/inducido químicamente , Humanos , Infusiones Intravenosas , Masculino , Melanoma/mortalidad , Persona de Mediana Edad , Neoplasias Cutáneas/mortalidad , Análisis de Supervivencia , Resultado del Tratamiento , Vinblastina/administración & dosificación , Vinblastina/efectos adversos
16.
Br J Cancer ; 97(4): 464-71, 2007 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-17653074

RESUMEN

The aim of this phase II study was to assess the feasibility and efficacy of a specific three-dimensional conformal radiotherapy technique with concurrent continuous infusion of 5-fluorouracil (CI 5FU) sandwiched between gemcitabine chemotherapy in patients with locally advanced pancreatic cancer. Patients with inoperable cancer in the pancreatic head or body without metastases were given gemcitabine at 1000 mg m(-2) weekly for 3 weeks followed by a 1-week rest and a 6-week period of radiotherapy and concurrent CI 5FU (200 mg m(-2) day(-1)). The defined target volume was treated to 54 Gy in 30 daily fractions of 1.8 Gy. After 4 weeks' rest, gemcitabine treatment was re-initiated for three cycles (days 1, 8, 15, q28). Forty-one patients were enrolled. At the end of radiotherapy, one patient (2.4%) had a complete response and four patients (9.6%) had a partial response; at the end of treatment, three patients (7.3%) had a complete response and two patients (4.9%) had a partial response. Median survival time was 11.7 months, median time to progression was 7.1 months, and median time to failure of local control was 11.9 months. The 1- and 2-year survival rates were 46.3 and 9.8%, respectively. Treatment-related grade 3 and 4 toxicities were reported by 16 (39.0%) and four (9.8%) patients, respectively. Sixteen out of 41 patients did not complete the planned treatment and nine due to disease progression. This approach to treatment of locally advanced pancreatic cancer is safe and promising, with good local control for a substantial proportion of patients, and merits testing in a randomised trial.


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Adenocarcinoma/radioterapia , Desoxicitidina/análogos & derivados , Fluorouracilo/uso terapéutico , Neoplasias Pancreáticas/tratamiento farmacológico , Neoplasias Pancreáticas/radioterapia , Radioterapia Conformacional , Adenocarcinoma/mortalidad , Adenocarcinoma/patología , Adulto , Anciano , Quimioterapia Adyuvante/efectos adversos , Terapia Combinada/efectos adversos , Desoxicitidina/efectos adversos , Desoxicitidina/uso terapéutico , Progresión de la Enfermedad , Relación Dosis-Respuesta a Droga , Estudios de Factibilidad , Femenino , Fluorouracilo/efectos adversos , Humanos , Imagenología Tridimensional , Masculino , Persona de Mediana Edad , Neoplasias Pancreáticas/mortalidad , Neoplasias Pancreáticas/patología , Radioterapia Asistida por Computador/efectos adversos , Radioterapia Conformacional/efectos adversos , Análisis de Supervivencia , Resultado del Tratamiento , Gemcitabina
17.
Clin Oncol (R Coll Radiol) ; 17(5): 332-6, 2005 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-16097563

RESUMEN

AIMS: To describe the toxicity and response seen in patients receiving moderate-dose radiation therapy with concurrent weekly low-dose gemcitabine in the management of locally advanced non-small cell lung cancer (NSCLC). MATERIALS AND METHODS: Eighteen patients with confirmed NSCLC were enrolled over a 17-month period from August 2000 until January 2002. All had localised disease but were considered unsuitable for curative therapy. Radiation therapy was given to a dose of 30 Gy in 15 fractions over 3 weeks. Gemcitabine was given weekly before and within 3 h of fractions 1, 6 and 11. The study was designed as a dose-escalation study, commencing at 100 mg/m2 and increasing at levels of 50 mg/m2, until the maximum tolerated dose (MTD) was reached. RESULTS: The MTD was regarded as being 150 mg/m2. The major acute toxicity observed was oesophagitis. Skin reactions were also reported. The overall response rate in all patients was 88%, with 44% achieving a complete response. CONCLUSION: The combination of gemcitabine and moderate-dose radiation therapy is feasible, and offers low toxicity and excellent response rates in patients with localised NSCLC not suitable for high-dose therapy.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas/radioterapia , Desoxicitidina/análogos & derivados , Desoxicitidina/administración & dosificación , Neoplasias Pulmonares/radioterapia , Adulto , Anciano , Humanos , Masculino , Dosis Máxima Tolerada , Persona de Mediana Edad , Neumonitis por Radiación/etiología , Radioterapia/efectos adversos , Dosificación Radioterapéutica , Factores de Tiempo , Gemcitabina
19.
Breast Cancer Res Treat ; 86(3): 197-206, 2004 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-15567936

RESUMEN

PURPOSE: To evaluate the predictive value of HER-2 in a population of advanced breast cancer patients randomly treated either with single-agent doxorubicin (A) or with single-agent docetaxel (T). EXPERIMENTAL DESIGN: Patients from this study participated in a phase III clinical trial in which doxorubicin or docetaxel was administered for advanced disease. HER-2 was evaluated by IHC. In all positive cases, FISH was used to confirm the HER-2 positive status. The different cohorts of patients identified by HER-2 were examined to assess a possible relationship between HER-2 status and treatment effect. RESULTS: Tumor samples were available for 176 of the 326 patients entered in the clinical trial (54%). HER-2 positivity was observed in 20% of the study population. A statistically significant interaction was found between response rates to the study drugs and HER-2 status, with HER-2 positive patients deriving the highest benefit from the use of T (odds ratio for HER-2 positive patients treated with T = 3.12 (95% CI 1.11-8.80), p = 0.03). The interaction between HER-2 and response rates to A and T was also confirmed by a multivariate analysis. No statistically significant interaction was found between HER-2 and drugs efficacy evaluated in terms of time to progression and overall survival, although in the HER-2 negative cohort A was at least as effective as T in term of overall survival. CONCLUSIONS: These results suggest that in HER-2 positive breast cancer patients docetaxel might be more active than doxorubicin, while in HER-2 negative patients doxorubicin might be at least as effective as docetaxel. Although the present results cannot have an impact on current practice, they allow us to formulate the hypothesis that HER-2 positive breast cancer is a heterogeneous disease with regard to sensitivity to anthracyclines and taxanes, and that this might be dependent upon other molecular markers including the p-53 and topoisomerase II alpha genes. This hypothesis is currently being tested prospectively in two different 'bench to bed-side' clinical trials.


Asunto(s)
Antibióticos Antineoplásicos/uso terapéutico , Antineoplásicos Fitogénicos/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/genética , Doxorrubicina/uso terapéutico , Genes erbB-2 , Marcadores Genéticos , Taxoides/uso terapéutico , Adolescente , Adulto , Anciano , Antibióticos Antineoplásicos/administración & dosificación , Antineoplásicos Fitogénicos/administración & dosificación , Neoplasias de la Mama/patología , Docetaxel , Doxorrubicina/administración & dosificación , Femenino , Humanos , Hibridación Fluorescente in Situ , Masculino , Persona de Mediana Edad , Selección de Paciente , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Análisis de Supervivencia , Taxoides/administración & dosificación , Resultado del Tratamiento
20.
Dis Esophagus ; 17(3): 260-5, 2004.
Artículo en Inglés | MEDLINE | ID: mdl-15361102

RESUMEN

Between 1993 and 2001, 106 patients with esophageal cancer were reviewed at a multidisciplinary clinic and treated with palliative intent by chemoradiation therapy. This study assesses the palliative benefit on dysphagia and documents the toxicity of this treatment. The study population comprised 72 men and 34 women with a median age of 69 years. Patients were treated with a median radiation dose of 35 Gy in 15 fractions with a concurrent single course of 5 FU-based chemotherapy. Dysphagia was measured at the beginning and completion of treatment and at monthly intervals until death, using a modified DeMeester (4-point) score. Treatment was well tolerated, with only 5% of patients failing to complete therapy. The treatment-related mortality was 6%. The median survival for the study population was 7 months. The median baseline score at presentation was 2 (difficulty with soft food). Following treatment, 49% of patients were assessed as having a dysphagia score of 0 (no dysphagia). Seventy-eight per cent had an improvement of at least one grade in their dysphagia score after treatment. Only 14% of patients showed no improvement with treatment. Fifty-one per cent maintained improved swallowing until the time of last follow-up or death. This single-institution study shows that chemoradiation therapy administered for the palliation of malignant dysphagia is well tolerated and produces a sustainable normalization in swallowing for almost half of all patients.


Asunto(s)
Antineoplásicos/uso terapéutico , Trastornos de Deglución/terapia , Neoplasias Esofágicas/terapia , Fluorouracilo/uso terapéutico , Cuidados Paliativos/métodos , Adulto , Anciano , Anciano de 80 o más Años , Quimioterapia Adyuvante , Cisplatino/uso terapéutico , Trastornos de Deglución/clasificación , Trastornos de Deglución/etiología , Trastornos de Deglución/mortalidad , Neoplasias Esofágicas/complicaciones , Neoplasias Esofágicas/mortalidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Paclitaxel/uso terapéutico , Estudios Prospectivos , Dosis de Radiación , Radioterapia Adyuvante , Stents , Resultado del Tratamiento
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