RESUMEN
BACKGROUND: In advanced not selected NSCLC chemotherapy achieved an advantage of approximately 1-2 months on median survival versus best supportive care. Chemotherapy seems to improve symptoms control, even if randomised studies with quality of life as first endpoint are lacking and often chemotherapy toxicity compromises the frail cost/benefit ratio. The aim of the present study is to evaluate the impact on QoL, substituting cisplatin, a pivot drug in NSCLC therapy, with carboplatin, an analogue with an improved toxicity profile. The combination of cisplatin with Mitomycin and Vinblastine was one of the most frequently used in the palliative setting at the time of design of our study. METHODS: Patients were randomized to receive MVP regimen (Mitomycin-C 8 mg/m2 d1, Vinblastine 4 mg/m2 d 1-8, Cisplatin 100 mg/m2 d1) or MVC regimen (Mitomycin-C 8 mg/m2 d1, Vinblastine 4 mg/m2 d 1-8, Carboplatin 300 mg/m2 d1) every 3 weeks. The QoL was evaluated by the Spitzer QL-Index and by the EORTC QLQ-C30+LC 13 questionnaires before chemotherapy, after one cycle, after three cycles, and then every 6 weeks in the first 6 months and every 3 months thenafter. RESULTS: From September 1994 to July 1997, 153 consecutive patients were randomized to MVP (75 patients) or MVC arm (78 patients). Despite difficulties in carrying out and analysing QoL items in such patients, the global QoL evaluated by the Spitzer's questionnaire suggested an advantage for MVC regimen (P=0.05) and a significant difference was observed in global health subdomain (P=0.04). The disease-related symptoms improved with time, and the benefits lasted for the entire treatment period. When evaluated with the EORTC questionnaire there was significantly less nausea and vomiting (P=0.0001), appetite loss (P=0.01), insomnia (P=0.03), constipation (P=0.01) and peripheral neuropathy (P=0.01) in favour of MVC, and a trend for less hair loss (P=0.05). The advantage lasted for all the duration of chemotherapy. No differences were observed in global quality of life subdomain (P=0.40) between the two regimen. QoL was the first endpoint and the statistical power was inadequate to assess other parameters. However, we reported a response rate of 43.1 and 38.6%, respectively, in MVP and MVC arm (P=0.59) and a median survival of 10.2 and 7.2 months, respectively, for cisplatin and carboplatin arm (P=0.39). CONCLUSIONS: The carboplatin containing regimen (MVC) has a significant better toxicity profile than the cisplatin containing (MVP) regimen as proven both by the EORTC questionnaires and by the WHO toxicity data reported by physicians. No significant differences in terms of response rate, time to progression and overall survival were observed between the two regimen. The two chemotherapy regimen showed a similar effectiveness in symptom palliation when evaluated with C30 addendum of EORTC QOL questionnaire. With the Spitzer's questionnaires a trend towards an improved quality of life index was observed during treatment with the carboplatin combination in comparison to the cisplatin combination. This difference, however, was not observed when the global quality of life was evaluated with the EORTC patients compiled questionnaires. A carboplatin containing regimen with better toxicity profile and a similar potentiality for symptoms control offers an option in comparison to similar cisplatin containing combinations in the palliative treatment of advanced NSCLC.
Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Neoplasias Pulmonares/tratamiento farmacológico , Calidad de Vida , Anciano , Análisis de Varianza , Carboplatino/administración & dosificación , Distribución de Chi-Cuadrado , Cisplatino/administración & dosificación , Femenino , Humanos , Italia , Masculino , Persona de Mediana Edad , Mitomicina/administración & dosificación , Modelos de Riesgos Proporcionales , Análisis de Supervivencia , Resultado del Tratamiento , Vinblastina/administración & dosificaciónRESUMEN
BACKGROUND: Nitric oxide (NO) plays an important role as an inflammatory mediator in the airways. Since chronic obstructive pulmonary disease (COPD) is characterised by airway inflammation, a study was undertaken to determine NO levels in the exhaled air of patients with COPD. METHODS: Two groups of patients with clinically stable COPD were studied, 10 current smokers and 10 ex-smokers. Two control groups of healthy subjects consisting of 10 current smokers and 20 non-smokers were also studied. Exhaled NO levels were measured by the collection bag technique and NO chemiluminescence analyser. RESULTS: Mean (SE) levels of exhaled NO in ex-smokers and current smokers with COPD (25.7 (3.0) ppb and 10.2 (1.4) ppb, respectively) were significantly higher than in non-smoker and current smoker control subjects (9.4 (0.8) ppb and 4.6 (0.4) ppb, respectively). In current smokers with COPD exhaled levels of NO were significantly lower than in ex-smokers. In this latter group of patients there was a significant negative correlation between smoking history (pack years) and levels of exhaled NO (r = -0.8, p = 0.002). A positive correlation was seen between forced expiratory volume in one second (FEV1) and levels of exhaled NO (r = 0.65, p = 0.001) in patients with COPD. CONCLUSIONS: These data show that exhaled NO is increased in patients with stable COPD, both current and ex-smokers, compared with healthy control subjects.
Asunto(s)
Enfermedades Pulmonares Obstructivas/metabolismo , Óxido Nítrico/metabolismo , Adulto , Anciano , Biomarcadores , Pruebas Respiratorias , Estudios de Casos y Controles , Femenino , Volumen Espiratorio Forzado , Humanos , Mediciones Luminiscentes , Pulmón/fisiopatología , Enfermedades Pulmonares Obstructivas/etiología , Enfermedades Pulmonares Obstructivas/fisiopatología , Masculino , Persona de Mediana Edad , Fumar/efectos adversos , Estadísticas no ParamétricasRESUMEN
In the present multicentre randomized phase II trial, the activity and toxicity of three platinum-based combination regimens for the treatment of advanced non-small-cell lung cancer (NSCLC) were evaluated. The three regimens were: MVP (mitomycin-C 6 mg m(-2) on day 1, vindesine 3 mg m(-2) on days 1 and 15, and cisplatin 80 mg m(-2) on day 1 every 28 days), PIN (cisplatin 80 mg m(-2) day 1, ifosfamide 3 g m(-2) day 1 and vinorelbine 25 mg m(-2) day 1 and 8 every 21 days) and CaN (carboplatin 350 mg m(-2) day 1 and vinorelbine 25 mg m(-2) days 1 and 8 every 28 days). A total of 140 chemotherapy-naive patients entered the study; 49 patients were treated with MVP, 48 with PIN and 43 with CaN. Sixty-seven per cent of the patients had stage IV disease. Response rates, calculated on an 'intention to treat' basis, were as follows: MVP, 14.3% (95% CI 5.94-27.2%); PIN, 16.7% (95% CI 7.4-30.2%); and CaN, 14% (95% CI 5.3-27.9%). The overall median survivals were 256, 269 and 243 days for patients treated with MVP, PIN and CaN respectively. Myelosuppression was the most frequent toxicity: grade 3-4 leucopenia was observed in 14.3%, 25% and 18.6% of patients treated with MVP, PIN and CaN respectively. This multicentre phase II randomized trial shows that MVP, PIN and CaN can be administered on an outpatient basis with acceptable toxicities. Unfortunately, the three regimens showed an activity significantly lower than that reported in previous single-institution phase II trials.