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1.
World J Surg ; 43(5): 1264-1270, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30610270

RESUMO

Hereditary breast cancers, mainly due to BRCA1 and BRCA2 mutations, account for only 5-10% of this disease. The threshold for genetic testing is a 10% likelihood of detecting a mutation, as determined by validated models such as BOADICEA and Manchester Scoring System. A 90-95% reduction in breast cancer risk can be achieved with bilateral risk-reducing mastectomy in unaffected BRCA mutation carriers. In patients with BRCA-associated breast cancer, there is a 40% risk of contralateral breast cancer and hence risk-reducing contralateral mastectomy is recommended, which can be performed simultaneously with surgery for unilateral breast cancer. Other options for risk management include surveillance by mammogram and breast magnetic resonance imaging, and chemoprevention with hormonal agents. With the advent of next-generation sequencing and development of multigene panel testing, the cost and time taken for genetic testing have reduced, making it possible for treatment-focused genetic testing. There are also drugs such as the PARP inhibitors that specifically target the BRCA mutation. Risk management multidisciplinary clinics are designed to quantify risk, and offer advice on preventative strategies. However, such services are only possible in high-income settings. In low-resource settings, the prohibitive cost of testing and the lack of genetic counsellors are major barriers to setting up a breast cancer genetics service. Family history is often not well documented because of the stigma associated with cancer. Breast cancer genetics services remain an unmet need in low- and middle-income countries, where the priority is to optimise access to quality treatment.


Assuntos
Neoplasias da Mama/genética , Aconselhamento , Testes Genéticos , Neoplasias da Mama/terapia , Feminino , Genes BRCA1 , Genes BRCA2 , Humanos , Mutação
2.
Ann Oncol ; 27(4): 668-73, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26712905

RESUMO

BACKGROUND: Fluorouracil-based adjuvant chemotherapy in gastric cancer has been reported to be effective by several meta-analyses. Perioperative chemotherapy in locally advanced resectable gastric cancer (RGC) has been reported improving survival by two large randomized trials and recent meta-analyses but the role of neoadjuvant chemotherapy and optimal regimen remains to be determined. We compared a neoadjuvant with adjuvant docetaxel-based regimen in a prospective randomized phase III trial, of which we present the 10-year follow-up data. PATIENTS AND METHODS: Patients with cT3-4 anyN M0 or anyT cN1-3 M0 gastric carcinoma, staged with endoscopic ultrasound, computed tomography, bone scan, and laparoscopy, were assigned to receive four 21-day/cycles of docetaxel 75 mg/m(2) day 1, cisplatin 75 mg/m(2) day 1, and fluorouracil 300 mg/m(2)/day over days 1-14, either before (arm A) or after (arm B) gastrectomy. Event-free survival was the primary end point, whereas secondary end points included overall survival, toxicity, down-staging, pathological response, quality of life, and feasibility of adjuvant chemotherapy. RESULTS: This trial was activated in November 1999 and closed in November 2005 due to insufficient accrual. Of the 70 enrolled patients, 69 were randomized, 34 to arm A and 35 to arm B. No difference in EFS (2.5 years in both arms) or OS (4.3 versus 3.7 years, in arms A and B, respectively) was found. A higher dose intensity of chemotherapy was observed in arm A and more frequent chemotherapy-related serious adverse events occurred in arm B. Surgery was safe after preoperative chemotherapy. A 12% pathological complete response was observed in arm A. CONCLUSION: Docetaxel/cisplatin/fluorouracil chemotherapy is promising in preoperative setting of locally advanced RGC. The early stopping could mask the real effectiveness of neoadjuvant treatment. However, the complete pathological tumour responses, feasibility, and safe surgery warrant further investigation of a taxane-based regimen in the preoperative setting.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Terapia Neoadjuvante , Neoplasias Gástricas/tratamento farmacológico , Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Adolescente , Adulto , Idoso , Cisplatino/administração & dosagem , Intervalo Livre de Doença , Docetaxel , Fluoruracila/administração & dosagem , Gastrectomia , Humanos , Pessoa de Meia-Idade , Período Perioperatório , Período Pós-Operatório , Neoplasias Gástricas/patologia , Neoplasias Gástricas/cirurgia , Taxoides/administração & dosagem , Resultado do Tratamento
6.
Support Care Cancer ; 16(5): 461-7, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-17909864

RESUMO

GOALS OF WORK: The aim of this study was to evaluate pain intensity and the application of the WHO guidelines for cancer pain treatment in patients with prostate cancer treated at Swiss cancer centers. MATERIALS AND METHODS: We analyzed a series of five multicenter phase II clinical trials which examined the palliative effect of different chemotherapies in patients with advanced hormone-refractory prostate carcinoma. Of 170 patients, 1,018 visits were evaluable for our purpose, including ratings of pain intensity by patients and prescribed analgesics. MAIN RESULTS: No or mild pain was indicated by patients in 36 to 55% of the visits, more than mild pain in 30 to 46%. In 21% of the visits, the WHO pain treatment criteria (treatment according to one of the three steps; oral, rectal or transdermal application of the main dose; administration on a regular schedule) were fulfilled, and the Cleeland index was positive according to all recommendations. In 6% of the visits, neither the WHO criteria were fulfilled nor was the Cleeland index positive. This indicates insufficient pain treatment not following the WHO guidelines and that the prescribed analgesics were not sufficiently potent for the rated pain intensity. CONCLUSIONS: In this selective Swiss sample, the standard of analgesic treatment is high. However, there is still scope for improvement. This cannot solely be solved by improving the knowledge of the physicians. Programs to change the patients' attitude towards cancer pain, training to improve the physicians' communication skills, and institutional changes may be promising strategies.


Assuntos
Analgésicos/uso terapêutico , Neoplasias Hormônio-Dependentes/tratamento farmacológico , Dor/tratamento farmacológico , Idoso , Idoso de 80 Anos ou mais , Analgésicos/administração & dosagem , Antineoplásicos/administração & dosagem , Antineoplásicos/uso terapêutico , Ensaios Clínicos Fase II como Assunto , Fidelidade a Diretrizes , Humanos , Masculino , Metástase Neoplásica , Dor/etiologia , Medição da Dor , Cuidados Paliativos , Antígeno Prostático Específico/metabolismo , Neoplasias da Próstata/complicações , Neoplasias da Próstata/tratamento farmacológico , Qualidade de Vida , Estudos Retrospectivos , Suíça , Resultado do Tratamento
7.
Br J Cancer ; 97(11): 1480-5, 2007 Dec 03.
Artigo em Inglês | MEDLINE | ID: mdl-18040273

RESUMO

Sorafenib is a multi-kinase inhibitor with antiangiogenic and antiproliferative activity. The activity of sorafenib in progressive hormone-refractory prostate cancer (HRPC) patients was investigated in a phase II clinical study. Progressive HRPC patients received sorafenib 400 mg bid p.o. continuously. Only patients with no prior chemotherapy, and either one-unidimensional measurable lesion according to RECIST-criteria or increasing prostate-specific antigen (PSA) values reflecting a hormone-refractory situation, were eligible for study entry. The primary study objective was the rate of progression-free survival of >/=12 weeks (PFS12). Secondary end points were overall response, overall survival, and toxicity. Fifty-seven patients with PC were enrolled. Two patients had to be withdrawn from the set of eligible patients. According to RECIST criteria, 4 patients out of 55 evaluable patients showed stable disease (SD). According to PSA-response, we saw 11 patients with SD PSA and 2 patients were responders at 12 weeks (PFS12=17/55=31%). Among the 257 adverse events, 15 were considered drug related of maximum CTC-grade 3. Twenty-four serious adverse events occurred in 14 patients (14/55=26%). Seven of them were determined to be drug related. No treatment-related death was observed. Sorafenib has antitumour activity in HRPCP when evaluated for RECIST- and PSA-based response. Further investigation as a component of combination regimens is necessary to evaluate its definite or overall clinical benefit for HRPCP.


Assuntos
Benzenossulfonatos/uso terapêutico , Neoplasias da Próstata/tratamento farmacológico , Piridinas/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Benzenossulfonatos/efeitos adversos , Fadiga/induzido quimicamente , Humanos , Masculino , Pessoa de Meia-Idade , Náusea/induzido quimicamente , Niacinamida/análogos & derivados , Dor/induzido quimicamente , Compostos de Fenilureia , Antígeno Prostático Específico/sangue , Neoplasias da Próstata/sangue , Neoplasias da Próstata/patologia , Piridinas/efeitos adversos , Sorafenibe , Análise de Sobrevida , Resultado do Tratamento
8.
Ann Oncol ; 17(5): 801-6, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16507565

RESUMO

BACKGROUND: Hormonal treatment for women with breast cancer is frequently proposed in the adjuvant as well as in the palliative setting. Therefore, many women are confronted with early menopause and prolonged oestrogen deprivation and consequently with a variety of quality of life issues, such as menopausal symptoms and fatigue. PATIENTS AND METHODS: It was the aim of this study to explore the occurrence and frequency of menopausal symptoms in women with breast cancer, undergoing hormonal cancer treatment and to investigate their relationship with fatigue. A cross-sectional, quantitative approach was used in this multi-centre study. The Checklist for Patients with Endocrine Therapy (C-PET) and the International Breast Cancer Study Group (IBCSG) Linear Analogue Scales for patients with endocrine treatment were used. Descriptive statistics, as well as cluster analyses were performed. RESULTS: Most frequent menopausal symptoms involved hot flashes/sweats, tiredness, weight gain, vaginal dryness and decreased sexual interest. There were significant differences between the fatigued and the non-fatigued population regarding the intensity of menopausal symptoms, emotional irritability and general coping. Cluster analyses supported a menopausal symptom cluster. CONCLUSIONS: Fatigue accompanies menopausal symptoms and an association can be expected. Methods for routine screening for menopausal symptoms, including fatigue, are suggested as a relevant research issue in women with breast cancer undergoing hormonal treatment.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Fadiga/induzido quimicamente , Terapia de Reposição Hormonal/efeitos adversos , Menopausa/efeitos dos fármacos , Idoso , Neoplasias da Mama/psicologia , Estudos de Casos e Controles , Estudos Transversais , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Qualidade de Vida , Fatores de Risco , Inquéritos e Questionários
9.
Ann Oncol ; 16(5): 762-6, 2005 May.
Artigo em Inglês | MEDLINE | ID: mdl-15817597

RESUMO

BACKGROUND: A phase I-II multicenter trial was conducted to define the maximal tolerated dose and describe the activity of an OCFL combination using oxaliplatin (OHP), irinotecan (CPT-11) and 5-fluorouracil (FU)/leucovorin (LV) in metastatic colorectal cancer (CRC). PATIENTS AND METHODS: CRC patients not pretreated with palliative chemotherapy, with performance status < or =1 and adequate haematological, kidney and liver function, were eligible. Treatment consisted in weekly 24-h infusion 5-FU (2300 mg/m(2))/LV (30 mg) and alternating OHP (70-85 mg/m(2), days 1 and 15) and CPT-11 (80-140 mg/m(2), days 8 and 22) repeated every 5 weeks. OHP and CPT-11 were escalated in cohorts of three to six patients. RESULTS: Thirty patients received a median of five cycles. Dose-limiting toxicity occurred at dose level 3, and the recommended dose was OHP 70 mg/m(2), CPT-11 100 mg/m(2), LV 30 mg and 5-FU 2300 mg/m(2)/24 h. Grade > or =3 toxicities were diarrhea 23%, neutropenia 20%, fatigue 7%, and neurologic 7%. Two febrile neutropenia episodes (one fatal) were recorded. Among 28 patients with measurable disease (90%), we observed two complete and 20 partial responses; overall RR was 78% (95% CI, 59% to 92%). Median time to progression and overall survival were 9.5 and 25.4 months, respectively. Seven patients underwent liver metastases resection. CONCLUSION: OCFL is an overall well tolerated regimen with very high efficacy, which makes it most suitable for tumour control before surgery of metastatic disease.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/mortalidade , Neoplasias Hepáticas/secundário , Neoplasias Pulmonares/secundário , Cuidados Paliativos , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Camptotecina/efeitos adversos , Camptotecina/análogos & derivados , Camptotecina/uso terapêutico , Neoplasias Colorretais/patologia , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Fluoruracila/efeitos adversos , Fluoruracila/uso terapêutico , Humanos , Irinotecano , Leucovorina/efeitos adversos , Leucovorina/uso terapêutico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Masculino , Dose Máxima Tolerável , Pessoa de Meia-Idade , Metástase Neoplásica , Estadiamento de Neoplasias , Compostos Organoplatínicos/efeitos adversos , Compostos Organoplatínicos/uso terapêutico , Oxaliplatina , Prognóstico , Análise de Sobrevida , Resultado do Tratamento
10.
Br J Cancer ; 92(6): 1055-62, 2005 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-15756271

RESUMO

Although irinotecan 350 mg m(-2) is a standard option for relapsed/refractory advanced colorectal cancer, there is some evidence that suggests that a higher dose may be more effective, with acceptable tolerability, following 5-fluorouracil (5-FU). This study assessed the optimal dosing strategy for irinotecan, along with treatment efficacy and safety. A total of 164 patients with metastatic colorectal cancer progressing after failure on 5-FU or raltitrexed received either 350 mg m(-2) irinotecan (Group A; n=36) or 250, 350 or 500 mg m(-2), according to individual patient tolerance (Group B; n=62) or based on risk factor optimisation (Group C; n=66). There were no complete responses. There was a trend towards a higher overall response rate in Group B (13%) than in Groups A (8%) and C (9%). Tumour control growth rate was high in all three groups: 58% in group A, 60% in Group B and 50% in Group C. A total of 34% of patients in Group B and 9% in Group C were able to receive a dose of 500 mg m(-2). Median duration of response and time to progression were significantly longer in Groups A and B compared with Group C. No significant between-group differences for any adverse events were seen, although there was a small trend towards better tolerability in Group B. Individual dose escalation based on patient tolerance may allow more patients to receive a higher irinotecan dose without causing additional toxicity and can be an appropriate patient management strategy.


Assuntos
Camptotecina/análogos & derivados , Camptotecina/administração & dosagem , Neoplasias Colorretais/tratamento farmacológico , Fluoruracila/uso terapêutico , Adulto , Idoso , Camptotecina/efeitos adversos , Camptotecina/farmacocinética , Feminino , Humanos , Irinotecano , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Falha de Tratamento
11.
Ann Oncol ; 15(5): 759-64, 2004 May.
Artigo em Inglês | MEDLINE | ID: mdl-15111343

RESUMO

BACKGROUND: A phase I-II multicenter trial was conducted to define the maximum tolerated dose (MTD) according to tolerance and toxicity (primary objective), as well as to describe the clinical activity, in terms of response and survival (secondary objectives), of a combination of 5-fluorouracil (5-FU) in protracted continuous intravenous infusion (p.i.v.) with docetaxel and cisplatin for patients with advanced gastric cancer. PATIENTS AND METHODS: Patients with measurable unresectable and/or metastatic gastric carcinoma, World Health Organization performance status < or =1, normal hematological and renal functions, adequate hepatic function and not pretreated for advanced disease by chemotherapy, received up to eight cycles of a combination of docetaxel on day 1, cisplatin on day 1 and 5-FU p.i.v. on days 1-14 (TCF) every 3 weeks, which was escalated up to the MTD, defined by the occurrence of dose-limiting toxicity in two patients in one dose level. RESULTS: Fifty-two patients were accrued and treated (43 in the phase I part of the trial and nine additional at the recommended dose level). A median of five cycles/patient was given. The recommended dose of TCF was docetaxel 85 mg/m(2) on day 1, cisplatin 75 mg/m(2) on day 1 and 5-FU p.i.v. 300 mg/m(2)/day on days 1-14. Grade > or =3 toxicities were neutropenia 79%, alopecia 46%, fatigue 23%, mucositis 10%, diarrhea 19%, nausea/vomiting 13%, neurological 4% and palmar-plantar 2%. Ten non-fatal febrile neutropenia episodes were recorded in eight patients. There were no treatment-related deaths. Among 41 patients with measurable disease (79%), we observed one complete and 20 partial responses for an overall intent-to-treat response rate of 51% (95% confidence interval 35-67%). Five patients (20%) had stable disease for > or =12 weeks (four cycles). The median overall survival was 9.3 months. CONCLUSIONS: 5-FU p.i.v. at 300 mg/m(2)/day for 2 weeks out of three could be safely added to the docetaxel-cisplatin (TC) combination, but the dose of docetaxel had to be reduced to 75 mg/m(2) in a subsequent phase II trial. This drug regimen seems to be very active in advanced gastric cancer. Comparison with both TC and ECF in a randomized SAKK trial is ongoing.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma/tratamento farmacológico , Neoplasias Gástricas/tratamento farmacológico , Adulto , Idoso , Carcinoma/patologia , Cisplatino/administração & dosagem , Docetaxel , Feminino , Fluoruracila/administração & dosagem , Humanos , Infusões Intravenosas , Masculino , Dose Máxima Tolerável , Pessoa de Meia-Idade , Neoplasias Gástricas/patologia , Análise de Sobrevida , Taxoides/administração & dosagem
12.
Br J Cancer ; 90(7): 1312-7, 2004 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-15054447

RESUMO

The objective of the trial is to evaluate the efficacy of capecitabine in patients with metastatic hormone-resistant prostate carcinoma (HRPC), in terms of prostate-specific antigen (PSA) response and clinical benefit (decrease of pain or analgesic score) and its safety profile. In all, 25 patients with HRPC were enrolled on a phase II trial of capecitabine (Xeloda) at a dose of 1250 mg m(-2) orally twice daily on days 1-14 every 21 days. The inclusion criteria were PSA serum levels >3 x upper limit of normal, a WHO performance status 0-2, age <85 years and adequate bone marrow, liver and renal function. In patients with grade 2 or higher haematological toxicity on day 1 of the treatment cycle, therapy was first delayed, and then continued at a lower dose. Trial end points were PSA response and clinical benefit defined by quality of life (QL) data and analgesic consumption. The median age of patients was 70 years (range 54-85 years). A median of three cycles of capecitabine was administered (range 1-8). PSA response was observed in three patients (12%, 95% CI 3-31%), with times to tumour progression of 18, 21 and 35 weeks, respectively. In these patients, the response durations were 12, 17 and 32 weeks, respectively. Minor PSA regression was also seen in two further patients. The median time to tumour progression of all patients was 12 weeks (95% CI 9-15 weeks). Haematological toxicity was minor, with leukopenia grade 3 observed in one patient. There were three deaths during trial treatment, respectively, due to sepsis following mucositis and leukopenia, presumed sepsis with mucositis induced by chemotherapy and concomitant radiotherapy and cerebral dysfunction progressing to coma. Hand-foot syndrome grades 2 and 3 were observed in four patients each. Clinical benefit was observed in five patients (20%, CI 7-41%). Based on toxicity data, we recommend a lower starting dose of 1000 mg x m(-2) orally twice daily. While capecitabine has some activity in HRPC, as suggested by observed PSA responses, we conclude that it is not worthwhile to investigate capecitabine monotherapy in a phase III trial. Combinations of capecitabine with other agents, such as vinorelbine or docetaxel, may prove to be more effective.


Assuntos
Antimetabólitos Antineoplásicos/uso terapêutico , Carcinoma/tratamento farmacológico , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapêutico , Neoplasias da Próstata/tratamento farmacológico , Idoso , Capecitabina , Desoxicitidina/efeitos adversos , Resistencia a Medicamentos Antineoplásicos , Fluoruracila/análogos & derivados , Hormônios/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Pró-Fármacos/uso terapêutico , Qualidade de Vida , Análise de Sobrevida
13.
Onkologie ; 26(3): 290-4, 2003 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12845216

RESUMO

The insulin-like growth factor (IGF) system performs multiple functions in normal tissue. IGFs are involved in normal mammary gland development, but have also been implicated in the pathogenesis of breast cancer. Epidemiological studies found an association between elevated serum levels of IGF-I and an increased risk for breast cancer. IGF-I is the major mediator of growth hormone (GH) action. On the cellular level, IGF-I has a strong influence on cell proliferation and it is a potent inhibitor of apoptosis. Further, IGFs are also involved in angiogenesis. These characteristics are the basis for their involvement in maintenance and progression of cancer. The functions of IGF-I are mainly mediated through the type-I IGF-receptor (IGF-IR). The availability of free IGF-I for interaction with IGF-IR is modulated by IGF binding proteins (IGFBP 1-6). Based on interactions with other receptors, including estrogen and epidermal growth factor receptors, combined targeted therapies may improve breast cancer treatment.


Assuntos
Neoplasias da Mama/fisiopatologia , Neoplasias Hormônio-Dependentes/fisiopatologia , Somatomedinas/fisiologia , Apoptose/fisiologia , Neoplasias da Mama/irrigação sanguínea , Feminino , Humanos , Proteínas de Ligação a Fator de Crescimento Semelhante a Insulina/fisiologia , Fator de Crescimento Insulin-Like I/fisiologia , Neovascularização Patológica/fisiopatologia , Receptor IGF Tipo 1/fisiologia , Transdução de Sinais/fisiologia
14.
Eur J Cancer ; 38(12): 1626-32, 2002 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12142053

RESUMO

The purpose of this study was to evaluate the efficacy of vinorelbine treatment in terms of prostate-specific antigen (PSA) response and clinical benefit (decrease of pain or analgesic score for the subgroup of patients with pain), as well as its toxicity in patients with progressive metastatic androgen-independent prostatic carcinoma. 44 patients with prostatic carcinoma progressing after orchiectomy or during treatment with hormonal agents were treated with vinorelbine at a dose of 30 mg/m(2) intravenously (i.v.) on days 1 and 8 of a 21-day cycle. Inclusion criteria were metastatic progressive prostatic carcinoma with prostate-specific antigen (PSA) serum levels >/=3 x upper limit of normal, World Health Organization (WHO) performance status /=2 was observed on the day of scheduled vinorelbine administration. 9 patients received less than three cycles, 6 due to rapid tumour progression. Treatment at day 1 had to be delayed in 13.7% of 183 cycles. Treatment at day 8 had to be omitted in 19.7% of all cycles. Grade >/=3 granulocytopenia occurred in 18% of patients. 4 patients had severe constipation. In 7 patients (15.9%, Confidence Interval (CI) 6.6-30.1%), a PSA response (>/=50% reduction of PSA levels) was observed. Among 8 patients with measurable disease, 3 had partial remission and 1 no change. Median time to PSA progression in 43 assessable patients was 11.9 weeks (range 3-52 weeks). Median duration of PSA response was 14 weeks (9-30 weeks). Clinical benefit was seen in 7 of 31 cases (23%) with baseline pain, there was no association with PSA response. Vinorelbine is a fairly well tolerated drug with a moderate single agent activity in patients with androgen-refractory prostate cancer.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Neoplasias da Próstata/tratamento farmacológico , Vimblastina/análogos & derivados , Vimblastina/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Progressão da Doença , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica/tratamento farmacológico , Antígeno Prostático Específico/sangue , Neoplasias da Próstata/sangue , Análise de Sobrevida , Resultado do Tratamento , Vinorelbina
15.
Onkologie ; 25(2): 152-7, 2002 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-12006766

RESUMO

BACKGROUND: Chemotherapy with paclitaxel and carboplatin 3-weekly is active in many tumors. Major toxicities are myelosuppression and neurotoxicity. Weekly administration of taxanes allows high dose intensity with reduced toxicity. PATIENTS AND METHODS: 131 patients with solid tumors were treated as outpatients with paclitaxel 75 mg/m(2) and carboplatin AUC 2-3 days 1, 8, 15 every 4 weeks irrespective of pretreatment and partly in neoadjuvant and multimodal concepts. RESULTS: 125 patients (median age 58 years) were evaluable for response and toxicity, of whom 45 suffered esophageal carcinoma (19 patients in neoadjuvant treatment) and 31 non-small cell lung cancer. 49 patients were pretreated. 23 patients received concomitant radiotherapy of esophagus or lung in doses ranging from 40 to 60 Gy. We observed a low hematologic toxicity with 15.2% grade-III/IV leukopenia/granulocytopenia and 3.2% thrombocytopenia grade III/IV. Neurotoxicity grade II was reported in 14 patients. Main toxicity with radiotherapy was esophagitis grade II or III in 7 out of 23 patients. Overall response rate was 54.2%. 5 out of 19 patients treated neoadjuvantly for esophageal cancer reached a pathological complete response. CONCLUSIONS: Weekly paclitaxel and carboplatin is safe and feasible in outpatients and a high dose intensity can be achieved. The favorable toxicity profile allows treatment of elderly and pretreated patients. Response rate is high including pathological complete responses and responses appear quickly, making this therapy most suitable for multimodal and neoadjuvant treatments.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Assistência Ambulatorial , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carboplatina/administração & dosagem , Carboplatina/efeitos adversos , Quimioterapia Adjuvante , Ensaios Clínicos como Assunto , Terapia Combinada , Relação Dose-Resposta a Droga , Esquema de Medicação , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Estadiamento de Neoplasias , Neoplasias/mortalidade , Neoplasias/patologia , Paclitaxel/administração & dosagem , Paclitaxel/efeitos adversos , Cuidados Paliativos , Taxa de Sobrevida
16.
Eur J Cancer ; 37(17): 2194-8, 2001 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11677106

RESUMO

Two multicentre phase II trials were designed to determine if tumour responses can be achieved in progressive small-cell lung cancer (SCLC) or non-small cell lung cancer (NSCLC) patients treated with ISIS 5132, an inhibitor of C-raf kinase mRNA expression (CGP 69846A; ISIS Pharmaceuticals Inc, Carlsbad, CA), and to further characterise the safety of the compound. Between August 1998 and November 1999, 26 patients (18 NSCLC, 8 SCLC) were entered. Out of these, 23 were eligible, 22 (18 NSCLC, 4 SCLC) were treated with ISIS 5132 (2 mg/kg/day, 21 days continuous intravenous (i.v.) infusion every 4 weeks) and were evaluable for toxicity and 18 (15 NSCLC, 3 SCLC) were evaluable for efficacy. For the whole group haematological toxicity did not exceed grade 2. One patient experienced a grade 4 increased prothrombin time. Non-haematological toxicity was mild to moderate, with the observation of asthenia and nausea and vomiting. Progressive disease (PD) was diagnosed in 10 patients (8 NSCLC and 2 SCLC). 8 more patients (7 NSCLC, 1 SCLC) were considered as treatment failures. In conclusion, this study using ISIS 5132 with this dose and schedule of administration excludes a 20% response rate with 95% confidence intervals for NSCLC and cannot draw any conclusions for SCLC patients as only a few were involved in the study.


Assuntos
Antineoplásicos/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma de Células Pequenas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Oligodesoxirribonucleotídeos Antissenso/uso terapêutico , Tionucleotídeos/uso terapêutico , Adulto , Idoso , Antineoplásicos/efeitos adversos , Progressão da Doença , Esquema de Medicação , Inibidores Enzimáticos/efeitos adversos , Inibidores Enzimáticos/uso terapêutico , Feminino , Doenças Hematológicas/induzido quimicamente , Humanos , Masculino , Pessoa de Meia-Idade , Oligodesoxirribonucleotídeos Antissenso/efeitos adversos , Proteínas Proto-Oncogênicas c-raf/antagonistas & inibidores , Tionucleotídeos/efeitos adversos , Resultado do Tratamento
17.
Onkologie ; 24(2): 116-21, 2001 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11441289

RESUMO

Surgical treatment of locally advanced gastric carcinoma still results in unsatisfactory survival results. The addition of adjuvant chemotherapy has been shown to be of little value and is not considered standard practice. Preoperative chemotherapy, however, has a strong theoretical basis and may achieve significant tumor shrinkage and downstaging and thus allow complete resection of cancers previously judged by the responsible surgeon to be inoperable. However, it has not yet been demonstrated whether preoperative chemotherapy prolongs the survival of patients with potentially resectable cancers. Based on theoretical reasons, preoperative chemotherapy may be expected to be more efficient than postoperative chemotherapy. Various phase II trials have shown the feasibility of this approach, and encouraging results were found. Differing diagnostic methods, inclusion criteria, and chemotherapy regimens hamper direct comparisons between the trials. Several useful new drugs including taxanes and camptothecins and promising chemotherapy regimens incorporating continuously infused 5-fluorouracil have been introduced recently. Ongoing large randomized clinical trials (MAGIC trial, EORTC, SAKK) currently study the efficacy of preoperative chemotherapy in locally advanced gastric carcinoma.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Terapia Neoadjuvante , Neoplasias Gástricas/tratamento farmacológico , Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Quimioterapia Adjuvante , Terapia Combinada , Gastrectomia , Humanos , Estadiamento de Neoplasias , Ensaios Clínicos Controlados Aleatórios como Assunto , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia , Neoplasias Gástricas/cirurgia , Taxa de Sobrevida
18.
Artigo em Inglês | MEDLINE | ID: mdl-11174606

RESUMO

OBJECTIVES: The purpose of this study is to compare Tuned-Aperture Computed Tomography (TACT) image sets made with linear vertical, linear horizontal, conical, and x-shaped x-ray projection arrays with regard to observer accuracy in (1) measuring the distance from the apex of a tooth root to the middle of the inferior alveolar canal (IAC), (2) measuring the shortest distance from the surface of a tooth root to the surface of the IAC, and (3) determining whether the root is buccal or lingual to the IAC. The same relationships were also examined by means of pairs of images and the buccal object rule. STUDY DESIGN: Two artificial mandible sections with simulated IACs were fabricated. The same human mandibular premolar root was used in both models to prevent development of learning cues to differentiate between models. The models were imaged from both sides, resulting in 4 orientations. An optical bench was designed to precisely orient different beam projection arrays for production of TACT image sets and pairs of images for use with the buccal object rule. Twelve dentists participated as observers to independently assess the relationships between the tooth root and the IAC with regard to the 4 orientations. RESULTS: For measuring the distance from the tooth apex to the middle of the IAC, TACT image sets made from conical and x-shaped arrays proved significantly more accurate than TACT image sets made from linear vertical or linear horizontal projections or pairs of digital images used with the buccal object rule (P <.05). For measuring the shortest distance between the tooth surface and the IAC surface, TACT image sets made from linear vertical, conical, and x-shaped projection arrays were significantly more accurate than measurements made through use of the buccal object rule or TACT image sets made through use of a linear horizontal projection array (P <.05). The following percentages of mistakes were made in determining whether the tooth root was buccal or lingual to the IAC: buccal object rule (58%), linear horizontal array (31%), linear vertical array (2%), conical array (0%), and x-shaped array (0%). CONCLUSIONS: For TACT, images acquired with conical and x-shaped beam projection arrays are preferred to those acquired with linear arrays for assessing the relationship between tooth roots and the IAC. TACT was found to be significantly more accurate than standard application of the buccal object rule for the relationships investigated.


Assuntos
Processo Alveolar/diagnóstico por imagem , Processamento de Imagem Assistida por Computador/métodos , Mandíbula/diagnóstico por imagem , Intensificação de Imagem Radiográfica/métodos , Tomografia Computadorizada por Raios X/métodos , Raiz Dentária/diagnóstico por imagem , Análise de Variância , Dente Pré-Molar/diagnóstico por imagem , Apresentação de Dados , Humanos , Matemática , Variações Dependentes do Observador , Imagens de Fantasmas , Radiografia Dentária Digital , Reprodutibilidade dos Testes , Estatística como Assunto , Fatores de Tempo , Ápice Dentário/diagnóstico por imagem
19.
Cancer Chemother Pharmacol ; 46(2): 167-71, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-10972487

RESUMO

PURPOSE: In a phase II trial, the activity of carzelesin, a cyclopropylpyrroloindole prodrug analog, was assessed. PATIENTS AND METHODS: Carzelesin was used as second- or third-line chemotherapy in patients with breast, ovarian, head and neck cancer and non-Hodgkin's lymphoma, and as first-line chemotherapy in patients with colorectal and gastric cancer and melanoma. The drug was given as a bolus infusion at a 4-weekly dose of 150 microg/m2. A total of 140 patients were entered and a total of 285 courses were administered. RESULTS: In general, the compound was well tolerated. Myelotoxicity was the most common toxicity. Grade 3 and 4 leukopenia was observed in 18.6% of the courses, neutropenia in 20.3%, thrombocytopenia in 16.2% and anemia in 8.7%. Double nadirs were seen in a total of 41 courses for neutrophils, in 40 for leukocytes and in 3 for platelets. Non-hematological toxicity was very mild. Only one partial response in a patient with melanoma was seen. CONCLUSIONS: At this dose and schedule carzelesin did not yield activity in the types of tumors studied.


Assuntos
Antineoplásicos/uso terapêutico , Benzofuranos/uso terapêutico , Indóis/uso terapêutico , Neoplasias/tratamento farmacológico , Pró-Fármacos/uso terapêutico , Adulto , Idoso , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Benzofuranos/administração & dosagem , Benzofuranos/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Neoplasias Colorretais/tratamento farmacológico , Duocarmicinas , Feminino , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Humanos , Indóis/administração & dosagem , Indóis/efeitos adversos , Infusões Intravenosas , Linfoma não Hodgkin/tratamento farmacológico , Masculino , Melanoma/tratamento farmacológico , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias/patologia , Neoplasias Ovarianas/tratamento farmacológico , Pró-Fármacos/efeitos adversos , Neoplasias Gástricas/tratamento farmacológico
20.
Ann Oncol ; 11(3): 301-6, 2000 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-10811496

RESUMO

PURPOSE: A multi-centric trial was performed to explore the clinical activity, in terms of response and toxicity (primary objectives), duration of response and survival (secondary objectives), of docetaxel with cisplatin in advanced gastric cancer (AGC). PATIENTS AND METHODS: Patients with measurable unresectable and/or metastatic gastric carcinoma, performance status < or = 1, normal hematological, hepatic and renal functions and not pretreated for advanced disease by chemotherapy received up to eight cycles of TC (docetaxel 85 mg/m2 dl, cisplatin 75 mg/m2 dl) q3w. Dose escalation to 100 mg/m2 was performed in five patients and was discontinued for excessive toxicity. RESULTS: Forty-eight patients were accrued. A median of 5 cycles/patient was given. We observed 2 complete and 25 partial responses for an overall intent to treat response rate of 56% (95% CI: 41%-71%). Twelve patients had stable disease for > or = 9 weeks (3 cycles). The median time to progression and overall survival were 6.6 and 9 months, respectively. Grade > or = 3 toxicities were neutropenia 81%, anemia 32%, thrombocytopenia 4%, alopecia 36%, fatigue 9%, mucositis 9%, diarrhea 6%, nausea/vomiting 4%, neurologic 2%, and one anaphylaxis precluding treatment administration. We recorded nine episodes of non-fatal febrile neutropenia in eight patients, two of them with docetaxel at 100 mg/m2. There were no direct treatment-related deaths. CONCLUSIONS: TC is active in AGC with a high response rate in a multicentric trial. Despite its hematotoxicity, this regimen is well tolerated and can be recycled as originally planned in 78% of the cases. These results may serve as basis for further developments of docetaxel containing regimens in this disease.


Assuntos
Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/secundário , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Cisplatino/administração & dosagem , Paclitaxel/análogos & derivados , Neoplasias Gástricas/tratamento farmacológico , Taxoides , Adenocarcinoma/mortalidade , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Cisplatino/efeitos adversos , Docetaxel , Humanos , Paclitaxel/administração & dosagem , Paclitaxel/efeitos adversos , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia , Análise de Sobrevida
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