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2.
Ann Oncol ; 26(7): 1353-62, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25851629

RESUMO

BACKGROUND: Lymphopenia is a predictive factor for hematological toxicity, progression and early death in advanced cancers including metastatic breast cancer (MBC). CYT107 is a recombinant interleukin 7 (IL-7) (Cytheris, now Revimmune), well tolerated and able to expand lymphocyte pool in humans. The aims of this study were to determine the optimal schedule to deliver CYT107 and to assess its effect on clinical end points. PATIENT AND METHODS: This placebo-controlled, double blind, phase IIa was conducted in MBC patients with <1500/µl lymphocytes treated with capecitabine. Using a 2-by-2 factorial design, 20 patients were randomly allocated to four arms to receive (i) before chemotherapy: CYT107 or placebo; then (ii) during chemotherapy: CYT107 or placebo. The primary end point was CD4+ count changes before and during chemotherapy. Secondary end points were hematological toxicity, safety, overall response, progression-free survival (PFS) and overall survival (OS). Quantification and functional competence of circulating immune cells were also assessed. RESULTS: When administered before chemotherapy, CYT107 induced a significant increase of CD4+ [+148.1% in CYT107 versus +9.9% in placebo groups, (Wilcoxon, P = 0.002)] and CD8+ T-cell counts, including both naïve and memory subsets. When CYT107 was administered during chemotherapy, the magnitude of CD4+ and CD8+ increase was less important. No modulation of immune cell functional competence was observed. CYT107 was well tolerated with no related ≥grade 3 adverse events except 1 fatal suspected unexpected serious adverse reaction (SUSAR) of uncertain relationship. Of the 12 cases evaluable for response, 6 of 7 patients (86%) receiving CYT107 before chemotherapy achieved a response or stabilization, whereas two of five patients (40%) receiving placebo achieved the same result. No significant difference was observed for PFS or OS. CONCLUSION: In lymphopenic MBC, CYT107 increases CD4+ and other T-cell subset counts without altering their function. A larger clinical trial to demonstrate its impact on clinical outcome is warranted. CLINICALTRIALSGOV IDENTIFIER: NCT01362107.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Carcinoma Ductal de Mama/tratamento farmacológico , Carcinoma Lobular/tratamento farmacológico , Interleucina-7/uso terapêutico , Linfopenia/tratamento farmacológico , Proteínas Recombinantes/uso terapêutico , Adulto , Idoso , Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Contagem de Linfócito CD4 , Carcinoma Ductal de Mama/mortalidade , Carcinoma Ductal de Mama/secundário , Carcinoma Lobular/mortalidade , Carcinoma Lobular/secundário , Método Duplo-Cego , Feminino , Seguimentos , Humanos , Técnicas Imunoenzimáticas , Metástase Linfática , Linfopenia/mortalidade , Linfopenia/patologia , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Taxa de Sobrevida
3.
Ann Oncol ; 16(4): 602-10, 2005 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15741225

RESUMO

BACKGROUND: This multicenter, randomized, phase III study compared the efficacy, including progression-free survival (PFS), and safety of gemcitabine-docetaxel (GD) combination versus cisplatin-vinorelbine (CV) in the treatment of advanced non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS: Chemonaive patients with stage IIIB or IV NSCLC were treated with GD (gemcitabine 1000 mg/m(2) days 1 and 8 plus docetaxel 85 mg/m(2) day 8, every 3 weeks for eight cycles) or CV (cisplatin 100 mg/m(2) day 1 plus vinorelbine 30 mg/m(2), days 1, 8, 15 and 22, every 4 weeks for six cycles). RESULTS: A total of 311 patients were enrolled (155 GD and 156 CV). Neither PFS nor overall survival differed significantly between the two arms (median PFS 4.2 and 4 months; median survival 11.1 and 9.6 months; 1-year survival 46% and 42%, for GD and CV, respectively). For the GD arm compared with the CV arm, the hazard ratio for PFS was 1.04 [95% confidence interval (CI) 0.83-1.32], and for overall survival, it was 0.90 (95% CI 0.70-1.16). Objective response rates did not differ significantly (31% for GD, 35.9% for CV). Myelosupression, emesis and frequency of febrile neutropenia were less pronounced on the GD arm, whereas fluid retention and pulmonary events were more pronounced. The CV arm experienced a higher number of serious adverse events and a lower compliance with the protocol. There was no quality of life (QoL) difference between arms. Median time to definite impairment of health-related QoL was 153 and 168 days in GD and CV arms, respectively. CONCLUSIONS: There was no advantage in PFS with GD compared with CV; however, the CV regimen had higher rate of toxic events, mainly myelosuppression. The herein, non-platinum-containing regimen could be considered as a rational alternative to the cisplatin-based doublet.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Cisplatino/administração & dosagem , Desoxicitidina/análogos & derivados , Neoplasias Pulmonares/tratamento farmacológico , Vimblastina/análogos & derivados , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carcinoma Pulmonar de Células não Pequenas/secundário , Cisplatino/efeitos adversos , Desoxicitidina/administração & dosagem , Desoxicitidina/efeitos adversos , Docetaxel , Feminino , Doenças Hematológicas/induzido quimicamente , Humanos , Neoplasias Pulmonares/secundário , Masculino , Pessoa de Meia-Idade , Análise de Sobrevida , Taxoides/administração & dosagem , Taxoides/efeitos adversos , Vimblastina/administração & dosagem , Vimblastina/efeitos adversos , Vinorelbina , Gencitabina
4.
Rev Pneumol Clin ; 60(5 Pt 2): 3S60-7, 2004 Nov.
Artigo em Francês | MEDLINE | ID: mdl-15536356

RESUMO

Chemotherapy of advanced non-small cell lung cancers is based on cisplatin, which prolongs survival. However, the high toxicity of double-type combinations including cisplatin warrants the search for alternatives. New anti-cancer cytotoxic agents exhibit improved efficacy-toxicity ratio. Bitherapy, without cisplatin and with new molecules, provides hope of improvement in survival without deterioration in quality of life. Several randomised trials, already published or presented with mature results, suggest that certain bitherapies with new cytostatic agents are an alternative to the classical cisplatin-based bitherapies. The recent modifications in the guidelines of the American Association of Clinical Oncology take into account these recent results by admitting that "chemotherapy without cisplatin can be used as an alternative to the first-line platin-based chemotherapies". This brief review of the literature underlines the methodological questions raised by the publication of randomised studies essentially assessing gemcitabine-vinorelbine or gemcitabine-taxane combinations, by confronting them with either mono-chemotherapies or reference chemotherapy based on cisplatin. The assessment criteria selected in such studies are discussed.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Desoxicitidina/análogos & derivados , Neoplasias Pulmonares/tratamento farmacológico , Vimblastina/análogos & derivados , Carcinoma Pulmonar de Células não Pequenas/patologia , Desoxicitidina/administração & dosagem , Docetaxel , Humanos , Neoplasias Pulmonares/patologia , Estadiamento de Neoplasias , Paclitaxel/administração & dosagem , Taxoides/administração & dosagem , Vimblastina/administração & dosagem , Vinorelbina , Gencitabina
6.
Br J Cancer ; 87(10): 1079-85, 2002 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-12402145

RESUMO

This pilot phase I/II study intended to determine the maximum tolerated dose of cyclophosphamide and thiotepa administered on four consecutive courses with peripheral blood progenitor cell and granulocyte-colony stimulating factor support, as first-line therapy for hormone-refractory metastatic breast cancer patients. Twenty-eight patients were entered in the study. After two courses of epirubicin (120 mg m(-2)) and cyclophosphamide (2 g m(-2)) followed by granulocyte-colony stimulating factor injection and leukaphereses, patients received four cycles of cyclophosphamide and thiotepa. Each cycle was followed by peripheral blood progenitor cell and granulocyte-colony stimulating factor supports, then repeated every 28 to 35 days. Six escalating dose levels of cyclophosphamide and thiotepa were planned, beginning at cyclophosphamide 1.5 g m(-2) and thiotepa 200 mg m(-2). At least three patients were enrolled for each dose level. Eighteen patients completed the study. The maximum tolerated dose was 3000 mg m(-2) cyclophosphamide and 400 mg m(-2) thiotepa per course. Haematological toxicity was manageable on an outpatient basis and did not increase significantly with dose escalation. Dose-limiting toxicity was chemotherapy-induced immunosuppression, which resulted in one toxic death and two life-threatening infections. Median times to treatment failure and survival were 11 and 26 months, respectively. Three patients were alive, free of disease 30 months after completion of the study. Such therapy allows for high-dose intensity and high cumulative doses on a short period of time with manageable toxicity.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Ciclofosfamida/administração & dosagem , Tiotepa/administração & dosagem , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neoplasias da Mama/mortalidade , Feminino , Transplante de Células-Tronco Hematopoéticas , Humanos , Pessoa de Meia-Idade
7.
Lung Cancer ; 33(2-3): 277-87, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11551423

RESUMO

BACKGROUND: The good efficacy-toxicity ratio of both docetaxel and gemcitabine in non-small cell lung cancer (NSCLC) stimulates the investigation of the combination of these drugs as a first line chemotherapy. This two-step study firstly aimed at determining the maximum tolerated and recommended doses of docetaxel given every 3 weeks in combination with a fixed dose of gemcitabine; the phase I study paid particular attention to pharmacokinetics. Afterwards, the safety and efficacy of the recommended dose was carefully assessed in the phase II-step. METHODS: The following range of docetaxel dosages were tested in the phase I study; 60, 75, 85, and 100 mg m(-2) given on day 8 in combination with gemcitabine 1000 mg m(-2) delivered on days 1 and 8 of a 3-week cycle. Haematopoietic growth factors were not allowed. The treatment was delivered on an outpatient basis. Main eligibility criteria consisted of stage III b or IV histologically proven NSCLC, Eastern Co-operative Oncology Group (ECOG) performance status PS < or =2, age < or =70 years, measurable disease, adequate blood counts, chemistry, and no symptomatic brain metastasis. RESULTS: Four centres enrolled 49 patients (eight having been pre-treated); 16 in phase I and 33 in phase II. The maximal tolerated dose was almost reached at the last dose level (i.e. docetaxel, 100 mg m(-2)). Consequently, we considered the 85 mg m(-2) level as the recommended dose. There was a positive relationship of the docetaxel dose to the area under the curve of this drug. Toxicity was assessable in all patients. Among the 200 cycles delivered, 192 were assessable for this feature. Main toxicity was grade 3-4 neutropenia affecting 23 patients (47% of the population; 23% of the cycles). Six febrile episodes were recorded leading to two treatment-related deaths. Another patient died from congestive cardiac failure. In addition, six patients experienced interstitial pneumonitis, (one half considered as severe), two of them having received the recommended dose. All patients recovered from this toxicity after corticosteroids. Fourteen patients out of the whole population (29%; 95% CI [17-43], including ten patients receiving the recommended dose), achieved an objective response. Median follow-up was 14 months (range, 0.3-29.4). Median survival was 11.2 months (95% CI [8.3-13.2]), and the 1-year survival rate was 45%. CONCLUSION: Gemcitabine, 1000 mg m(-2) days 1 and 8 in combination with docetaxel, 85 mg m(-2), day 8, given every 3 weeks could be considered as an active regimen with manageable toxicities in locally advanced or metastatic NSCLC. This study deserves further comparisons with classical platinum-based regimens.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Taxoides , Adulto , Idoso , Área Sob a Curva , Carcinoma Pulmonar de Células não Pequenas/metabolismo , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Desoxicitidina/administração & dosagem , Desoxicitidina/efeitos adversos , Desoxicitidina/análogos & derivados , Desoxicitidina/farmacocinética , Intervalo Livre de Doença , Docetaxel , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Humanos , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/mortalidade , Masculino , Pessoa de Meia-Idade , Paclitaxel/administração & dosagem , Paclitaxel/efeitos adversos , Paclitaxel/análogos & derivados , Paclitaxel/farmacocinética , Contagem de Plaquetas , Taxa de Sobrevida , Resultado do Tratamento , Gencitabina
8.
Ann Oncol ; 12(1): 59-67, 2001 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11249050

RESUMO

PURPOSE: To determine if the timing of whole brain radiotherapy (WBRT) with respect to chemotherapy with cisplatin and vinorelbine would influence survival in patients with non-small-cell lung cancer (NSCLC) and concurrent brain metastasis. PATIENTS AND METHODS: One hundred seventy-six patients with brain metastasis from NSCLC were included in the study between July 1995 and October 1997. All patients received chemotherapy with cisplatin 100 mg/m2 on day 1 and vinorelbine 30 mg/m2 on days 1, 8, 15, 22. Cycles were repeated every four weeks. Evaluation of response was performed after two, four or six cycles. After two cycles, chemotherapy was administered to the responders to a maximum of six cycles. Patients were randomised to receive WBRT 30 Gy/10 fx/12 days and delayed corticosteroids. (arm A) for the intracranial nonresponders, or early on day 1 to 12 during the first cycle of chemotherapy (arm B). RESULTS: One hundred seventy-one patients were eligible: eighty-six in arm A and eighty-five in arm B; none had received prior chemotherapy; seventy-six and seventy-three, respectively, were assessable for response. There was a 21% overall objective response rate (OR) (with 1 complete response and 17 partial responses) after two cycles of chemotherapy alone (arm A) and a 20% OR (with 17 partial responses) to chemotherapy and early WBRT (arm B). The intracranial OR was 27% and 33%, respectively (P = 0.12). The six months survival rate (46% and 40%) and the median survival duration (24 and 21 weeks, respectively) were not significantly different between the two arms (P = 0.83, log-rank test). The major toxicity was severe or life-threatening neutropenia (grade 4), which occurred in 35% of arm A patients and 36% of arm B patients. There were thirteen treatment-related deaths (six in arm A and seven in arm B). There was no difference between the arms for haematological and neuro-toxicities. CONCLUSIONS: These results confirm the efficacy of chemotherapy in brain metastases of NSCLC and suggest that the timing (early or delayed) of WBRT did not influence survival of NSCLC with brain metastasis treated with concurrent chemotherapy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Encefálicas/tratamento farmacológico , Neoplasias Encefálicas/radioterapia , Neoplasias Encefálicas/secundário , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/radioterapia , Carcinoma Pulmonar de Células não Pequenas/secundário , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/radioterapia , Vimblastina/análogos & derivados , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Cisplatino/administração & dosagem , Terapia Combinada , Fracionamento da Dose de Radiação , Feminino , Humanos , Infusões Intravenosas , Masculino , Pessoa de Meia-Idade , Neutropenia/induzido quimicamente , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento , Vimblastina/administração & dosagem , Vinorelbina
9.
Lung Cancer ; 31(2-3): 247-56, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11165404

RESUMO

PURPOSE: To assess the potential relationships between systemic exposure to doxorubicin, etoposide and ifosfamide at first chemotherapy cycle and therapeutic effect, tumor response, toxicity, and survival, in small cell lung cancer (SCLC) patients. PATIENTS AND METHODS: Twenty-four patients referred to five different centers with either thorax-limited or metastatic SCLC entered the study. All but one received two induction courses of the 3 day-AVI (doxorubicin 50 mg/m(2) day 1, etoposide 120 mg/m(2) day 1, 2, 3, ifosfamide 2000 mg/m(2) day 1, 2) regimen. Individual plasma samples were collected at the first course and complete concentration data on 24 courses were available. Drugs exposures were estimated using a population pharmacokinetic method and expressed as clearance (Cl), area under the curve (AUC), and AUC-intensity (AUC/cycle duration). Responding patients received thoracic irradiation+concomitant cisplatinum-etoposide (limited disease) or four more courses of AVI (extensive disease). The impact of exposure parameters on haematological toxicity, tumor response and overall survival was assessed using linear regression, the Mann-Whitney U-test and the log-rank test/Kaplan-Meier estimation, respectively. RESULTS: Twenty-three patients could be evaluated for response and survival. We found no relationship between drug exposure and haematological toxicity but all patients had received Granulocyte-Colony Stimulating Factor support. Tumor response was marginally influenced by ifosfamide AUC. In patients with etoposide AUC>254.8 mg h/l, 1-year survival was 50.0 vs. 9.1% in the other group (median 11.4 vs. 7.1 months, P=0.02), with respect to established prognostic factors. In patients with extensive disease only (n=15), 1-year survival was 42.9 vs. 0% (median 11.3 vs. 5.3 months, P=0.01). CONCLUSION: This study strongly suggests that SCLC patients should benefit from sufficient etoposide exposure at first cycle to improve survival. Adaptative control based on plasma concentration measurements should be tested in further studies assessing various polychemotherapy regimens.


Assuntos
Antineoplásicos Fitogênicos/farmacocinética , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Pequenas/tratamento farmacológico , Etoposídeo/farmacocinética , Neoplasias Pulmonares/tratamento farmacológico , Idoso , Antineoplásicos Fitogênicos/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Área Sob a Curva , Carcinoma de Células Pequenas/patologia , Carcinoma de Células Pequenas/radioterapia , Cisplatino/administração & dosagem , Terapia Combinada , Doxorrubicina/administração & dosagem , Etoposídeo/administração & dosagem , Feminino , Humanos , Ifosfamida/administração & dosagem , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/radioterapia , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Análise de Sobrevida
10.
Br J Clin Pharmacol ; 50(4): 315-24, 2000 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11012554

RESUMO

AIMS: To determine the population pharmacokinetic (PK) parameters of doxorubicin (Dox), etoposide (Eto) and ifosfamide (Ifo) in small cell lung cancer (SCLC) patients, to assess the potential relationship between those parameters and to estimate the impact of individual morphological and biological covariates on patients' PK parameters. METHODS: Twenty-four patients with either SCLC limited to the thorax or extensive SCLC entered the study. All but one received at least two 3 day courses of the standard AVI (Dox 50 mg m-2 day 1, Eto 120 mg m-2 day 1,2,3, Ifo 2000 mg m-2 day 1,2) regimen. Individual blood samples were collected during each course and data on 47 courses were available. Data were analysed with the NONMEM program. Dox, Eto and Ifo plasma concentrations were studied with multicompartment (3, 2 and 2, respectively) models. Inter-individual and interoccasion (course-to-course) variabilities were estimated. The influence of individual covariates (age, sex, stage of the disease, weight, height, body-surface area, serum creatinine, total protein, LDH, ASAT, ALAT, alkaline phosphatase, gamma-GT, bilirubin) on PK parameters was also assessed. Correlations between individual PK parameters of Dox, Eto and Ifo were explored by using Pearson's correlation coefficient. RESULTS: Multiple data were available for each patient. Dox clearance (CL) and volume of distribution (Vd) were 32.0 l h-1 and 9.3 l (Inter-individual variability: 17.2% and 19.2%). Eto CL (l h-1) and Vd were, respectively, 3.34-0.0083* serum creatinine (micromol l-1) and 6.38 l (interindividual variability: 15.6% and 18.7%). Ifo CL and Vd at day 1 were 5.6 l h-1 and 26.0 l (interindividual variability: 10.1% and 17.2%, respectively). Estimation of course-to-course variability improved the precision of PK models in some cases. No correlation was observed between the respective PK parameters of each drug. Of individual covariates tested, only serum creatinine correlated with Eto CL (r = -0.37, P < 0.001). Self-induction of the metabolism of Ifo was apparent (mean CL increase from day 1 to day 2 : 42%) and individually correlated with the CL value at day 1 (r = -0.61, P < 0.001). CONCLUSIONS: Assessment of potential relationships between individual systemic exposure of chemotherapy and therapeutic endpoints (tumour response, toxicity and survival) will be required to adjust drugs dosages based on individual PK parameters rather than questionable body-surface area. However, all three drugs in the AVI regimen should be monitored simultaneously.


Assuntos
Antineoplásicos/farmacocinética , Carcinoma de Células Pequenas/metabolismo , Neoplasias Pulmonares/metabolismo , Idoso , Antineoplásicos/sangue , Carcinoma de Células Pequenas/sangue , Doxorrubicina/sangue , Doxorrubicina/farmacocinética , Etoposídeo/sangue , Etoposídeo/farmacocinética , Humanos , Ifosfamida/sangue , Ifosfamida/farmacocinética , Neoplasias Pulmonares/sangue , Pessoa de Meia-Idade
12.
Cancer Chemother Pharmacol ; 45(5): 375-80, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-10803920

RESUMO

PURPOSE: The aim was to investigate in patients receiving doxorubicin whether any alteration in myocardial oxidative metabolism or blood flow as assessed by positron emission tomography (PET) could be observed either after the first dose of the drug, or during its chronic administration. METHODS: Six female non-heart-failure cancer patients treated with doxorubicin were included in a longitudinal study. Resting radionuclide cineangiography and PET scanning with carbon-11 acetate were performed the day before the initiation of doxorubicin treatment at a dosage of 50 mg/m2 every 3 weeks, and 3 weeks after the cumulative administration of 300 mg/m2 (chronic toxicity). In addition, PET was performed 24 h after the first administration of doxorubicin (evaluation of acute toxicity). Myocardial oxidative metabolism and blood flow were assessed by PET (acute and chronic toxicity), and left ventricular ejection fraction was measured by radionuclide angiography (chronic toxicity). RESULTS: Using PET for both acute and chronic toxicity evaluations, no significant effect of doxorubicin was observed either on the flux through the tricarboxylic acid (TCA) cycle or on myocardial blood flow. However, systolic left ventricular function showed a small but significant impairment after the administration of 300 mg/m2 of doxorubicin. CONCLUSIONS: Other hypotheses should be explored to better explain the predominant mechanisms of the cardiotoxicity of anthracyclines in humans.


Assuntos
Antibióticos Antineoplásicos/efeitos adversos , Circulação Coronária/efeitos dos fármacos , Doxorrubicina/efeitos adversos , Coração/efeitos dos fármacos , Miocárdio/metabolismo , Neoplasias/tratamento farmacológico , Idoso , Ciclo do Ácido Cítrico/efeitos dos fármacos , Eletrocardiografia/efeitos dos fármacos , Feminino , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , Neoplasias/metabolismo , Oxirredução , Tomografia Computadorizada de Emissão
13.
Am J Clin Oncol ; 23(6): 614-6, 2000 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-11202809

RESUMO

The aim of this study was to determine the efficacy and toxicity of combination cisplatin and etoposide chemotherapy in patients with metastatic carcinoma of unknown primary. Patients were treated with cisplatin (100 mg/m2 iv day 1) followed by etoposide (100 mg/m2 iv days 1-3) every 3 weeks for a maximum of 6 cycles. Patients with progressive disease after two or four courses could receive FAC (fluorouracil, doxorubicin, and cyclophosphamide) until progression. Twenty-five patients were entered and were assessable for response and toxicity. Fifteen (60%) patients had adenocarcinomas. Patients received a median of four courses. Toxicity was mainly hematologic including grade III/IV neutropenia. The overall response rate was 32%. There was no complete response, 32% partial responses, 32% stable disease, and 36% disease progression. Median response duration was 4 months (range: 2-5 months). The median overall survival of the 25 patients was 8 months. No objective response could be obtained with FAC, but 33% of patients achieved stabilization of the disease for at least 3 months. This cisplatin-etoposide combination demonstrated some activity against an usually resistant disease.


Assuntos
Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/secundário , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma/tratamento farmacológico , Carcinoma/secundário , Neoplasias Primárias Desconhecidas/tratamento farmacológico , Adulto , Idoso , Cisplatino/administração & dosagem , Etoposídeo/administração & dosagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise de Sobrevida
14.
J Clin Oncol ; 17(10): 3136-42, 1999 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-10506610

RESUMO

PURPOSE: To determine the efficacy and tolerability of irinotecan (CPT-11) in advanced or recurrent cervical carcinoma. PATIENTS AND METHODS: Eligible patients had histologically confirmed, inoperable, progressive, metastatic or recurrent squamous cell cervical carcinoma and had received no radiotherapy in the preceding 3 months and had never received chemotherapy. The initial irinotecan dosage of 350 mg/m(2) every 3 weeks was modifiable according to toxicity. Treatment continued for six cycles after complete response, or until disease progression or excessive toxicity after partial response, or for three additional cycles in the case of stable disease. Patients were stratified into group A (>/= one measurable lesion in a previously unirradiated area, with or without progressive disease in irradiated fields) or group B (measurable new lesion[s] in an irradiated field). RESULTS: Fifty-one of 55 enrolled patients were eligible for inclusion (median age, 47 years; range, 30 to 71 years). The response rate was 15.7% (95% confidence interval [CI], 7.0% to 28.6%) overall, 23.5% (95% CI, 10.7% to 41.2%) for group A (complete response, 2.9%), and zero for group B. The median time to progression and median survival were 4.0 and 8.2 months for group A and 2.5 and 4.2 months for group B, respectively. The major grade 3/4 toxicities for groups A and B were diarrhea (24.3% and 55.5%, respectively) and neutropenia (24.3% and 33.3%, respectively). There were four toxicity-related deaths, three in group B. Patients with no prior external pelvic irradiation experienced fewer grade 3 and 4 adverse events. CONCLUSION: Irinotecan is effective in treating cervical squamous cell carcinoma if disease is located in an unirradiated area. Because of toxicity, a reduced dose is advised for patients previously treated with external pelvic irradiation.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Camptotecina/análogos & derivados , Carcinoma de Células Escamosas/tratamento farmacológico , Neoplasias do Colo do Útero/tratamento farmacológico , Adulto , Idoso , Antineoplásicos Fitogênicos/efeitos adversos , Camptotecina/efeitos adversos , Camptotecina/uso terapêutico , Carcinoma de Células Escamosas/patologia , Diarreia/induzido quimicamente , Feminino , Humanos , Infusões Intravenosas , Irinotecano , Pessoa de Meia-Idade , Neutropenia/induzido quimicamente , Análise de Sobrevida , Resultado do Tratamento , Neoplasias do Colo do Útero/patologia
15.
Invest New Drugs ; 17(4): 325-33, 1999.
Artigo em Inglês | MEDLINE | ID: mdl-10759400

RESUMO

We have developed a specific and sensitive method aiming at docetaxel (Taxotere) determination in plasma of treated patients. This involved solid-phase extraction of 1 ml of plasma onto carboxylic acid (CBA) grafted silica cartridges followed by reversed-phase liquid chromatography with UV detection. The best selectivity was obtained through the use of C18 Uptisphere as stationary phase. The low limit of quantitation obtained (LOQ: 5 ng/ml) allowed measurements of docetaxel up to 24 hours after one-hour infusions with low dosages of drug (60 mg/m2). The method was applied successfully to monitor docetaxel plasma levels within two protocols associating fixed dosages of either methotrexate or gemcitabine with escalating doses of Taxotere.


Assuntos
Antineoplásicos Fitogênicos/sangue , Paclitaxel/análogos & derivados , Taxoides , Antimetabólitos Antineoplásicos/administração & dosagem , Antimetabólitos Antineoplásicos/sangue , Protocolos de Quimioterapia Combinada Antineoplásica , Calibragem , Cromatografia Líquida de Alta Pressão , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Desoxicitidina/sangue , Docetaxel , Humanos , Metotrexato/administração & dosagem , Metotrexato/sangue , Paclitaxel/sangue , Reprodutibilidade dos Testes , Solventes , Espectrofotometria Ultravioleta , Gencitabina
16.
Cancer Chemother Pharmacol ; 41(4): 281-91, 1998.
Artigo em Inglês | MEDLINE | ID: mdl-9488597

RESUMO

PURPOSE: The objectives of this phase I study were to evaluate the toxic effects and the maximum tolerated dose (MTD) of S9788, a new modifier of multidrug resistance (MDR), when given alone and in combination with doxorubicin to patients with advanced solid tumors; to achieve a potentially active plasma concentration of S9788; and to study the pharmacokinetics of both drugs. METHODS: A total of 26 patients (median age 58 years) entered the study. S9788 was given alone as a 30-min infusion at day 1 and in combination with a 50-mg/m2 bolus of doxorubicin at days 8 and 29. Dose levels of S9788 were escalated from 8 to 96 mg/m2 according to the modified Fibonacci scheme. Plasma samples were taken predose as well as during and up to 48 h after the beginning of infusion for S9788 and doxorubicin quantitation. Fractionated urine samples were also collected for up to 24 h for S9788 determination. RESULTS: The dose-limiting side effects of S9788 consisted of bradycardia, sometimes associated with faintness or dizziness. The MTD of S9788 was 96 mg/m2. No enhancement of doxorubicin toxicity was observed. One partial response (duration 140 days) was observed at 96 mg/m2 in a patient with multiple lung metastases from a refractory urothelial carcinoma. Pharmacokinetic studies were performed in 24 patients. Since the mean apparent elimination half-life of S9788 was 46 +/- 23 h and the last plasma sampling time was 48 h, only model-independent parameters were considered. Plasma levels of S9788 were below the limit of quantitation (4 x 10[-3] microM) before each drug administration. S9788 plasma levels of up to 3.7 microM could be obtained with this administration schedule. The urinary elimination of the unchanged drug was negligible, whatever the collection period. In spite of the large inter- and intraindividual variability, plasma pharmacokinetics of S9788 given as a 30-min i.v. infusion were linear up to 96 mg/m2 and were not modified by doxorubicin administration. Doxorubicin pharmacokinetic parameters did not seem to be influenced by S9788 coadministration. CONCLUSION: The dose-limiting toxicity of S9788 consisted of bradycardia or clinical symptoms suggesting a vasovagal impact such as faintness or dizziness. The MTD of S9788 was 96 mg/m2. The pharmacokinetic parameters of doxorubicin in this study were close to those usually described and were not influenced by escalation of the S9788 dose. No pharmacokinetic interaction was observed between S9788 and doxorubicin. The clinical tolerability of the combined treatment is in good agreement with the pharmacokinetic findings, since no enhancement of doxorubicin toxicity was observed.


Assuntos
Antibióticos Antineoplásicos/efeitos adversos , Antineoplásicos/efeitos adversos , Antineoplásicos/farmacocinética , Doxorrubicina/efeitos adversos , Resistência a Múltiplos Medicamentos , Resistencia a Medicamentos Antineoplásicos , Neoplasias/tratamento farmacológico , Piperidinas/efeitos adversos , Piperidinas/farmacocinética , Triazinas/efeitos adversos , Triazinas/farmacocinética , Adulto , Idoso , Antibióticos Antineoplásicos/administração & dosagem , Antibióticos Antineoplásicos/farmacocinética , Antineoplásicos/administração & dosagem , Bradicardia/induzido quimicamente , Relação Dose-Resposta a Droga , Doxorrubicina/administração & dosagem , Doxorrubicina/farmacocinética , Interações Medicamentosas , Feminino , Humanos , Infusões Intravenosas , Injeções Intravenosas , Masculino , Pessoa de Meia-Idade , Piperidinas/administração & dosagem , Triazinas/administração & dosagem
19.
Support Care Cancer ; 4(3): 163-8, 1996 May.
Artigo em Inglês | MEDLINE | ID: mdl-8739647

RESUMO

The aim of this study was to evaluate the quality of care for terminal cancer patients at our institution, as assessed by families in a questionnaire sent 6 months after the death of the patient. We evaluated the quality of information given to the patients and to their families, the patients' "comfort" at the end of their lives (nursing, pain, psychological support) and the families' opinions about the practical conditions at the time of death (in our institution or at home). A total of 105 consecutive patients who died in our institution between January and June 1989 were included in the study; the vast majority had breast or head and neck cancers. We obtained a total of 48 answers from the 105 families that received the questionnaire. Of these, 87.5% were satisfied with the terminal nursing care, 77% were satisfied with the information given to patients and 60% with the information given to families. The treatment for pain was considered to be inefficient or incomplete by 21% of the families; 32 families (67%) considered that the death of terminal cancer patients should occur in the hospital where the patient had been treated and 12% felt that it should occur at home. This study led us to examine various means for improving the quality of care for our terminal cancer patients.


Assuntos
Atitude Frente a Saúde , Institutos de Câncer , Assistência Integral à Saúde , Família , Neoplasias/terapia , Qualidade da Assistência à Saúde , Assistência Terminal , Adulto , Idoso , Idoso de 80 Anos ou mais , Atitude Frente a Morte , Neoplasias da Mama/enfermagem , Neoplasias da Mama/psicologia , Neoplasias da Mama/terapia , Comportamento do Consumidor , Feminino , Neoplasias de Cabeça e Pescoço/enfermagem , Neoplasias de Cabeça e Pescoço/psicologia , Neoplasias de Cabeça e Pescoço/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/enfermagem , Neoplasias/psicologia , Dor/prevenção & controle , Cuidados Paliativos , Relações Profissional-Família , Relações Profissional-Paciente , Neoplasias Urogenitais/enfermagem , Neoplasias Urogenitais/psicologia , Neoplasias Urogenitais/terapia
20.
Bull Cancer ; 82(3): 208-10, 1995 Mar.
Artigo em Francês | MEDLINE | ID: mdl-7655149

RESUMO

Muco epidermoïd tumors of the lung are rare tumors, derived from the minor salivary gland tissue of the proximal tracheo bronchial tree. We distinguish high grade and low grade malignity tumors. Authors are presenting two cases reports of mucoepidermoid tumors of the lung with a very aggressive behavior and a review of the literature. Attention is drawn to the difficult differential diagnosis with adenosquamous carcinoma of the lung.


Assuntos
Neoplasias Brônquicas/diagnóstico , Carcinoma Mucoepidermoide/diagnóstico , Neoplasias Brônquicas/mortalidade , Carcinoma Adenoescamoso/diagnóstico , Carcinoma Mucoepidermoide/mortalidade , Diagnóstico Diferencial , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Prognóstico
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