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1.
Gynecol Oncol ; 105(2): 373-84, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17276501

RESUMO

OBJECTIVE: Emergence of chemoresistance in the course of treatments with platinum drugs remains a major hurdle to ovarian carcinoma therapy. We have previously shown that acquisition of cisplatin resistance by OAW42-R ovarian carcinoma cells was associated with the loss of ERK activation in response to cisplatin. To try to sensitize this cell line by restoring ERK activation, we tested a new synthetic compound, 2[[3-(2,3-dichlorophenoxy)propyl]amino]ethanol (2,3-DCPE), which was described to induce ERK activation and to display anticancer properties. METHODS: We treated four ovarian carcinoma cell lines with 2,3-DCPE, alone or combined with cisplatin. We characterized its effects on apoptosis induction and proliferation and correlated them with molecular modulations. RESULTS: We showed that 2,3-DCPE induced cell death and ERK phosphorylation in a time- and concentration-dependent manner in OAW42-R cells. 2,3-DCPE-triggered apoptosis was also associated with the inhibition of Bcl-2 expression and, to a less extent, with that of Bcl-xL. Treatment with 2,3-DCPE also elicited a strong G0/G1 cell cycle arrest, accompanied with p21WAF1/CIP1 up-regulation. All of these effects revealed to be irreversible. Moreover, 2,3-DCPE exerted a cytostatic effect on OAW42, IGROV1-R10 and SKOV3 ovarian carcinoma cells, the sensitivity to 2,3-DCPE appearing in particular linked with a low basal level of P-ERK. Finally, we showed that 2,3-DCPE increased the cytotoxic effect of cisplatin in OAW42-R resistant cells. CONCLUSION: Our results emphasized the potential interest of 2,3-DCPE, used alone or combined with cisplatin, for ovarian carcinoma treatment. The absence of basal P-ERK may constitute a predictive marker of response to this novel therapy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Clorobenzenos/farmacologia , Inibidor de Quinase Dependente de Ciclina p21/biossíntese , Etanolaminas/farmacologia , MAP Quinases Reguladas por Sinal Extracelular/metabolismo , Neoplasias Ovarianas/tratamento farmacológico , Proteínas Proto-Oncogênicas c-bcl-2/biossíntese , Proteína bcl-X/biossíntese , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral , Clorobenzenos/administração & dosagem , Cisplatino/administração & dosagem , Sinergismo Farmacológico , Ativação Enzimática/efeitos dos fármacos , Etanolaminas/administração & dosagem , Feminino , Fase G1/efeitos dos fármacos , Humanos , Neoplasias Ovarianas/enzimologia , Neoplasias Ovarianas/metabolismo , Neoplasias Ovarianas/patologia , Fosforilação/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-bcl-2/antagonistas & inibidores , Fase de Repouso do Ciclo Celular/efeitos dos fármacos , Proteína bcl-X/antagonistas & inibidores
2.
Int J Gynecol Cancer ; 16(1): 77-82, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16445614

RESUMO

A retrospective study evaluating the efficacy and tolerability of epirubicin-ifosfamide (EI) in patients with relapsed advanced ovarian cancer (ROC) after prior chemotherapy was conducted. A total of 93 patients received epirubicin (50 mg/m(2), day 1), ifosfamide (1500 or 2500 mg/m(2), days 1-3), and mesna monthly. Thirty-five percent had received one line of chemotherapy (platinum 100%, taxanes 8%); 38%, two lines; and 27%, more than two lines. Fifty-three percent received 2500 mg/m(2)/day ifosfamide and 47% received 1500 mg/m(2)/day ifosfamide. Ifosfamide was administered by continuous infusion in 12 patients. Mean number of courses was 4 (1-12). Grade 4 toxicity was 69% neutropenia and 12% thrombocytopenia. Three patients on high-dose ifosfamide as a short infusion had central nervous system dysfunction resulting in death. There were 84 assessable patients: 7 (8%), complete responses; 13 (15%), partial responses; and 20 (24%), stable disease. Median time to progression was 5 months (3 days to 36 months). The EI combination appears to be effective in ROC. However, toxicity with high-dose ifosfamide administered by short infusion is not acceptable. Tolerability can be improved using ifosfamide at 1500 mg/m(2) by continuous infusion. The combination of ifosfamide with newer anthracycline agents such as liposomal doxorubicin may be an alternative and needs further evaluation for use after first-line taxane-based chemotherapy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/mortalidade , Neoplasias Ovarianas/patologia , Terapia de Salvação , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Relação Dose-Resposta a Droga , Esquema de Medicação , Epirubicina/administração & dosagem , Feminino , Humanos , Ifosfamida/administração & dosagem , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Neoplasias Ovarianas/mortalidade , Neoplasias Ovarianas/terapia , Prognóstico , Estudos Retrospectivos , Medição de Risco , Análise de Sobrevida , Resultado do Tratamento
3.
Gynecol Oncol ; 101(3): 507-19, 2006 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-16387351

RESUMO

OBJECTIVE: Recurrence and cisplatin resistance that progressively develops in the course of treatments are major impediments in ovarian cancer therapy. We investigated the involvement of alterations of different signaling pathways in this acquired chemoresistance. METHODS: We studied the activation of these pathways in a model of progressive acquisition of resistance that we established, by discontinuously exposing a sensitive ovarian carcinoma cell line, OAW42, to increasing concentrations of cisplatin. RESULTS: OAW42-T1 and -T2 variants, which emerged after the first two treatments of OAW42 cells with 5 microg/ml cisplatin, showed enhanced but transient resistance. OAW42-R cells, obtained following successive reiterations of the treatment, displayed both a stronger resistance to cisplatin-induced apoptosis and an increased capacity to recover a normal proliferation after treatment. The measurement of DNA adducts demonstrated that the mechanisms leading to a decreased DNA platination could not explain the level of resistance of OAW42-R cells. The simultaneous study of activation pattern of key proteins of different signaling pathways revealed that cisplatin induced both activation of ERK and p38 and inhibition of P-FAK in the sensitive cells, whereas it progressively failed to elicit such a response in the resistant variants. In contrast, STAT3 and Akt did not seem to be involved in the acquired chemoresistance in our model. CONCLUSIONS: Our results suggested that emergence of chemoresistance was accompanied with the progressive loss of ERK and p38 activation and with the maintenance of FAK activation in response to cisplatin, and they demonstrated that these alterations were early events in the course of treatments.


Assuntos
Cisplatino/farmacologia , Quinase 1 de Adesão Focal/metabolismo , Quinases de Proteína Quinase Ativadas por Mitógeno/metabolismo , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias Ovarianas/enzimologia , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo , Linhagem Celular Tumoral , Cisplatino/administração & dosagem , Adutos de DNA/biossíntese , DNA de Neoplasias/metabolismo , Resistencia a Medicamentos Antineoplásicos , Ativação Enzimática/efeitos dos fármacos , Feminino , Humanos , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos
4.
J Clin Oncol ; 20(1): 73-80, 2002 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-11773156

RESUMO

PURPOSE: To evaluate quality of life and social problems in long-term survivors of testicular cancer. PATIENTS AND METHODS: In 1998, 71 testicular cancer survivors (cases) identified from the Calvados General Tumor Registry were enrolled onto a case-control study. One hundred nineteen healthy control subjects (controls), matched by age and location of residence, were selected at random from electoral rolls. Three self-administered questionnaires were used: two health-related quality-of-life questionnaires (Short Form-36 and European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-C30 core questionnaires) and one life situation questionnaire. Specific questions concerning sexuality were also added. RESULTS: With a mean follow-up of 11 years, health-related quality-of-life scores did not differ significantly between cases and controls, nor did general symptom scores. Psychosocial problems were reported equally by cases and controls. Cases reported more modification of sexual life (P =.04) with decreased sexual enjoyment (P <.01), decreased desire (P =.02), and infertility (P <.01). Cases did not report more divorce than controls; they reported fewer changes in relationships with friends (P =.03). Although a similar proportion of cases and controls were at work, cases expressed less ambitious professional plans (P =.002). Cases had greater difficulty in borrowing from banks (P <.001). CONCLUSION: French long-term survivors of testicular cancer do not express more impairment of health-related quality of life or familial or professional life in comparison with healthy men. They did have more sexual life problems and found difficulty in borrowing from banks. This information should be used by practitioners to help their patients cope with their disease and return to normal life.


Assuntos
Qualidade de Vida , Ajustamento Social , Sobreviventes , Neoplasias Testiculares , Adulto , Idoso , Estudos de Casos e Controles , Família/psicologia , França , Nível de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Sexualidade , Comportamento Social , Estatísticas não Paramétricas , Neoplasias Testiculares/psicologia
5.
J Clin Oncol ; 19(7): 1893-900, 2001 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-11283120

RESUMO

PURPOSE: A large, randomized study comparing the efficacy and safety of topotecan versus paclitaxel in patients with relapsed epithelial ovarian cancer showed that these two compounds have similar activity. In this study, a number of patients crossed over to the alternative drug as third-line therapy, ie, from paclitaxel to topotecan and vice versa. We therefore were able to assess the degree of non-cross-resistance between these two compounds. PATIENTS AND METHODS: Patients who had progressed after one platinum-based regimen were randomized to either topotecan (1.5 mg/m(2)/d) x 5 every 21 days (n = 112) or paclitaxel (175 mg/m(2) over 3 hours) every 21 days (n = 114). A total of 110 patients received cross-over therapy with the alternative drug (61 topotecan, 49 paclitaxel) as third-line therapy. RESULTS: Response rates to third-line cross-over therapy were 13.1% (8 of 61 topotecan) and 10.2% (5 of 49 paclitaxel; P =.638). Seven patients who responded to third-line topotecan and four patients who responded to paclitaxel had failed to respond to their second-line treatment. Median time to progression (from the start of third-line therapy) was 9 weeks in both groups, and median survival was 40 and 48 weeks for patients who were receiving topotecan or paclitaxel, respectively. The principal toxicity was myelosuppression; grade 4 neutropenia was more frequent with topotecan (81.4% of patients) than with paclitaxel (22.9% of patients). CONCLUSION: Topotecan and paclitaxel have similar activity as second-line therapies with regard to response rates and progression-free and overall survival. We demonstrated that the two drugs have a degree of non-cross-resistance. Thus, there is a good rationale for incorporating these drugs into future first-line regimens.


Assuntos
Antineoplásicos/farmacologia , Resistência a Múltiplos Medicamentos , Recidiva Local de Neoplasia/tratamento farmacológico , Neoplasias Epiteliais e Glandulares/tratamento farmacológico , Neoplasias Ovarianas/tratamento farmacológico , Paclitaxel/farmacologia , Topotecan/farmacologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Cross-Over , Resistencia a Medicamentos Antineoplásicos , Europa (Continente)/epidemiologia , Feminino , Humanos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/mortalidade , Neoplasias Epiteliais e Glandulares/mortalidade , Neoplasias Ovarianas/mortalidade , Modelos de Riscos Proporcionais , Taxa de Sobrevida , Estados Unidos/epidemiologia
6.
Gynecol Oncol ; 78(3 Pt 1): 361-8, 2000 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-10985895

RESUMO

OBJECTIVE: The aim of this study was to evaluate the impact of platinum dose intensity on pathological response rate and overall survival in patients with advanced ovarian adenocarcinoma. METHODS: Between February 1992 and December 1996, 195 previously untreated patients with FIGO stage IIb-c, IIIb-c, or IV with macroscopic residual disease after suboptimal debulking surgery were randomized to receive CCC (100 mg/m(2) of cisplatin, 300 mg/m(2) of cyclophosphamide, 300 mg/m(2) of carboplatin, n = 96) or CC (100 mg/m(2) of cisplatin, 600 mg/m(2) of cyclophosphamide, n = 99) for six courses at 28-day intervals. A second-look laparotomy was planned at the end of chemotherapy. RESULTS: In the CCC arm, the platinum compound received dose intensity and relative total dose were 85 and 76%; in the CC arm, they were 94 and 85%. Grade 3-4 toxicity was more frequent in the CCC arm than in the CC arm for leukopenia (56% vs 26%, P < 0.001), febrile neutropenia (18% vs 4%, P = 0.002), anemia (31% vs 5%, P < 0.001), thrombopenia (55% vs 4%, P < 0.001), and ototoxicity (8% vs 0%, P < 0.001). The pathologic complete response rate was 22 and 14% in the CCC and CC arms, respectively (P = 0.19). With a median follow-up of 53 months, the median time to failure and the 3-year treatment failure-free survival rate were 17.4 months and 22% vs 13 months and 11% in the two arms, respectively (P = 0.01). The median survival time and the 3-year overall survival rate were, respectively, 30 months and 42% vs 25 months and 33% (P < 0.20). CONCLUSION: The platinum dose intensification (1.6-fold increase) obtained with the CCC association improves the treatment failure-free survival without significant impact on overall survival when compared with the CC regimen in suboptimal debulked ovarian adenocarcinoma. However, because of its high rate of hematologic toxicity and ototoxicity, this association cannot be recommended for routine practice.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Ovarianas/tratamento farmacológico , Adenocarcinoma/patologia , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carboplatina/administração & dosagem , Carboplatina/efeitos adversos , Cisplatino/administração & dosagem , Cisplatino/efeitos adversos , Ciclofosfamida/administração & dosagem , Ciclofosfamida/efeitos adversos , Relação Dose-Resposta a Droga , Feminino , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Ovarianas/patologia , Análise de Sobrevida
7.
Br J Cancer ; 83(5): 577-82, 2000 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-10944595

RESUMO

Our purpose was to evaluate the late physical and psychosocial difficulties of premenpausal patients treated for a localized breast cancer and to weigh the impact of chemotherapy on long-term quality of life. Two self-administered questionnaires, the EORTC core QLQ-C30 and the breast module (BR23) were mailed to 179 premenopausal node-negative women continuously disease-free, previously enrolled in a trial testing the efficacy of adjuvant CMF chemotherapy (Espié et al, 1997). The core questionnaire evaluates the physical, role, emotional, cognitive and social functioning and global health status. The breast module includes four functional scales: body image, sexual functioning, sexual enjoyment and future perspective. It also includes symptom scales such as arm or breast symptoms. Some specific professional and social states were added. 119 (68%) patients (mean age 54 years, range 30-69) participated. Mean follow-up time since diagnosis was 9.6 years (4-16). 68% had conservative and 32% radical surgery (with reconstructive surgery in 50%). CMF was given to 77 (65%) patients. Irradiation was administered in 75% of patients irrespective of adjuvant therapy. QLQ-C30 scale scores were similar in patients who had or had not received chemotherapy. Disturbance in body image, sex life and breast symptoms did not differ between patients who had or had not received adjuvant CMF. No major socioprofessional difficulties were reported except problems in borrowing from banks not related to past chemotherapy. With long follow-up, most premenopausal women treated for a localized breast cancer cope with the disease and its treatments. Adjuvant CMF chemotherapy does not appear to impair quality of life nor social and professional life in these patients.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica , Neoplasias da Mama/tratamento farmacológico , Quimioterapia Adjuvante , Qualidade de Vida , Adulto , Idoso , Neoplasias da Mama/psicologia , Neoplasias da Mama/cirurgia , Ciclofosfamida/uso terapêutico , Intervalo Livre de Doença , Feminino , Fluoruracila/uso terapêutico , Humanos , Metástase Linfática , Metotrexato/uso terapêutico , Pessoa de Meia-Idade , Pré-Menopausa/psicologia , Inquéritos e Questionários , Sobreviventes/psicologia , Fatores de Tempo
8.
Ann Oncol ; 9(7): 751-7, 1998 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-9739442

RESUMO

PURPOSE: To evaluate late physical and psychosocial sequelae in patients treated with an association of external beam irradiation (EBI) and brachytherapy (BT) for localized prostate cancer. PATIENTS AND METHODS: Seventy-one patients free of disease, treated at the Centre François Baclesse from 1988 to 1992, were enrolled in a case-control study. Seventy-one healthy controls, matched on age and residence, were selected at random from electoral rolls. Two self-administered questionnaires were mailed in January 1996. The French translation of the Nottingham Health Profile questionnaire and the European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 core questionnaire were used to evaluate physical, role, emotional, cognitive and social functioning, global health status as well as energy and sleep disturbance. Specific problems related to prostate cancer were explored using the prostate specific module developed by the EORTC Genito-Urinary Tract Cancer Cooperative Group. Concordance between clinical complications reported by patients and those reported by physicians was also analyzed. RESULTS: General health quality of life scale scores did not significantly differ between patients and controls, nor did general symptom scale scores. Furthermore, no more late psychosocial sequelae were reported by patients than by controls. No major digestive complications were observed among patients. However, statistical differences were observed concerning interest in sex (P = 0.016) and sexual activity (P < 0.001), urinary incontinence (P < 0.001) and cystitis (P = 0.01). Late subjective morbidity (dysuria, nocturia, urinary incontinence, pelvic pain) appraisal differed slightly between patients and physicians who generally underestimate its severity. While nocturia was reported more often by physicians than by patients (P = 0.0016), patients reported urinary incontinence and pelvic pain more often than physicians (P < 0.001 and P < 0.001, respectively). CONCLUSIONS: The study demonstrates that survivors from localized prostate cancer treated with an association of BT and EBI have good global health status. Major problems that persist are sexual disorders, urinary incontinence and cystitis while digestive disorders were rare. This association could be an alternative to standard EBI in patients with localized prostate cancer. Whatever the treatment choice, patients should be involved in the therapeutic decision which should consider not only expected survival rate but also quality of life.


Assuntos
Neoplasias da Próstata/radioterapia , Qualidade de Vida , Idoso , Braquiterapia/efeitos adversos , Estudos de Casos e Controles , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Perfil de Impacto da Doença , Inquéritos e Questionários
9.
Ann Oncol ; 9(6): 661-6, 1998 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-9681082

RESUMO

BACKGROUND: The efficacies of granisetron plus dexamethasone and dexamethasone alone in controlling delayed nausea and vomiting after cisplatin chemotherapy (> or = 69 mg/m2) were compared in a multicentre, double-blind, placebo-controlled comparative study. PATIENTS AND METHODS: In all, 654 patients (of whom 619 were evaluable) received prophylactic granisetron plus dexamethasone before chemotherapy on day 0; on day 1 complete responders and non-responders were randomized separately to receive dexamethasone, 8 mg b.d. p.o., with either granisetron, 1 mg b.d. p.o., or matching placebo for six days. RESULTS: Over days 1-6 the complete response rates were 54.5% (dexamethasone group) and 52.1% (dexamethasone plus granisetron group). Response rates were higher over days 4-6 (71.8% and 70.7%, respectively) than over days 1-3 (60.4% and 57.9%, respectively). Significantly more patients who responded to antiemetic treatment during day 0 were responders over days 1-6 (63% vs. 17%; P < 0.001). No other treatment-related differences were found. Adverse events tended to be minor, with constipation and headache the most common. Overall, there were no significant differences in the safety profiles of the two regimens, but constipation and abdominal pain were significantly more common in the dexamethasone plus granisetron group. CONCLUSIONS: Granisetron plus dexamethasone did not appear to confer additional benefit over use of dexamethasone alone in controlling delayed nausea and vomiting following cisplatin chemotherapy. Control of acute nausea and vomiting, however, appeared to be an important factor influencing delayed nausea and vomiting.


Assuntos
Dexametasona/administração & dosagem , Granisetron/administração & dosagem , Náusea/tratamento farmacológico , Vômito/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antieméticos/administração & dosagem , Antieméticos/efeitos adversos , Antineoplásicos/efeitos adversos , Cisplatino/efeitos adversos , Dexametasona/efeitos adversos , Método Duplo-Cego , Esquema de Medicação , Quimioterapia Combinada , Feminino , Granisetron/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Náusea/induzido quimicamente , Razão de Chances , Modelos de Riscos Proporcionais , Antagonistas da Serotonina/administração & dosagem , Antagonistas da Serotonina/efeitos adversos , Fatores de Tempo , Resultado do Tratamento , Vômito/induzido quimicamente
10.
J Clin Oncol ; 15(6): 2183-93, 1997 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-9196130

RESUMO

PURPOSE: Topotecan and paclitaxel were evaluated in a randomized, multicenter study of patients with advanced epithelial ovarian carcinoma who had progressed during or after one platinum-based regimen. PATIENTS AND METHODS: Patients received either topotecan (1.5 mg/m2) as a 30-minute infusion daily for 5 days every 21 days (n = 112) or paclitaxel (175 mg/m2) infused over 3 hours every 21 days (n = 114). Patients had bidimensionally measurable disease and were assessed for efficacy and toxicity. RESULTS: Response rate was 23 of 112 (20.5%) in topotecan-treated patients and 15 of 114 (13.2%) in paclitaxel-treated patients (P = .138). Disease stabilization for at least 8 weeks was noted in 30% of patients with topotecan and 33% of patients with paclitaxel. Median durations of response to topotecan and paclitaxel were 32 and 20 weeks, respectively (P = .222) and median times to progression were 23 and 14 weeks, respectively (P = .002). Median survival was 61 weeks for topotecan and 43 weeks for paclitaxel (P = .515). Response rates for topotecan and paclitaxel were 13.3% versus 6.7% (P = .303) in resistant patients (not responded to prior platinum-based therapy or progressed within 6 months of an initial response) and 28.8% versus 20.0% (P = .213) in sensitive patients (progressed > 6 months after response). Neutropenia was significantly more frequent on the topotecan arm 79% versus paclitaxel arm 23% (P < .01). It was short-lasting and noncumulative in both arms. Nonhematologic toxicities were generally mild (grades 1 to 2) for both agents. CONCLUSION: Topotecan has efficacy at least equivalent to paclitaxel manifested by the higher response rate and significantly longer time to progression.


Assuntos
Antineoplásicos/uso terapêutico , Camptotecina/análogos & derivados , Recidiva Local de Neoplasia/tratamento farmacológico , Neoplasias Ovarianas/tratamento farmacológico , Paclitaxel/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/efeitos adversos , Camptotecina/efeitos adversos , Camptotecina/uso terapêutico , Progressão da Doença , Esquema de Medicação , Feminino , Humanos , Infusões Intravenosas , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/mortalidade , Recidiva Local de Neoplasia/patologia , Neoplasias Ovarianas/mortalidade , Neoplasias Ovarianas/patologia , Paclitaxel/efeitos adversos , Análise de Sobrevida , Topotecan
11.
Semin Oncol ; 23(5 Suppl 12): 48-54, 1996 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-8941410

RESUMO

This phase I trial was designed to determine the maximum tolerated dose of paclitaxel (Taxol; Bristol-Myers Squibb Company, Princeton, NJ) given as a 3-hour infusion in combination with carboplatin (400 mg/m2) as first-line chemotherapy for stage IIIC/IV ovarian adenocarcinoma. After premedication, paclitaxel was infused over 3 hours, followed by carboplatin infused over 30 minutes on day 1 of a 28-day cycle (group 1, with 28 patients accrued and 150 evaluable cycles) or on day 1 of a 21-day cycle (group 2, with 16 patients accrued and 55 evaluable cycles). Dose-limiting toxicities assessed after the first course included grade 4 neutropenia lasting longer than 7 days, febrile grade 4 neutropenia requiring intravenous antibiotics, grade 4 thrombocytopenia, mucositis greater than grade 2 for more than 7 days, grade > or = 3 nonhematologic toxicity (excluding alopecia, vomiting, and muscular pain), no hematologic recovery on day 42 (for group 1) or on day 35 (for group 2), neurotoxicity above grade 2, and persistence of nonhematologic toxicity (excluding alopecia, nausea/vomiting, and musculoskeletal pain) grade > or = 2 at scheduled re-treatment. If any of the events occurred during the first cycle in three or more of six patients, maximum tolerated dose was considered to have been reached. The hematologic toxicity associated with the two treatment schedules was mainly neutropenia, but it was of short duration. Very few dose reductions or dose delays were necessary. Until now, the six planned courses have been administered without colony-stimulating factors. No toxic death has occurred. Grade 2 or 3 peripheral neuropathy has occurred in 12% of patients, mainly with high doses of paclitaxel. At this time, the maximum tolerated dose has not been reached at paclitaxel 275 mg/m2 every 4 weeks or 225 mg/m2 every 3 weeks, and enrollment continues.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carboplatina/administração & dosagem , Neoplasias Ovarianas/tratamento farmacológico , Paclitaxel/administração & dosagem , Adolescente , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carboplatina/efeitos adversos , Esquema de Medicação , Feminino , Humanos , Pessoa de Meia-Idade , Paclitaxel/efeitos adversos
15.
Ann Oncol ; 5(7): 579-4, 1994 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-7993831

RESUMO

PATIENTS AND METHODS: Three anti-emetic treatment regimens were compared in 357 patients receiving cisplatin therapy (mean dose 81 mg/m2) in this double-blind randomized study. Regimens studied were i) granisetron 1 mg bd orally for 7 days (granisetron alone); ii) gran 1 mg bd orally for 7 days plus prophylactic dexamethasone (12 mg i.v.) on the first day only (gran/dex); iii) metoclopramide (3 mg/kg i.v. loading dose; 4 mg/kg i.v. infusion) plus dex (12 mg i.v.) on the first day followed by met 10 mg orally tds for a further 6 days (met/dex). RESULTS: At 24 hours, gran/dex was significantly superior to met/dex in terms of total anti-emetic control, defined as no nausea, no vomiting, no rescue anti-emetic therapy, not withdrawn (54.7% gran/dex vs. 37.2% met/dex; P < 0.01). There was also a significant delay in time to onset of nausea (P < 0.01) and vomiting (P < 0.01) following gran/dex compared with met/dex. Oral granisetron alone was as effective as met/dex in control of acute emesis in all parameters examined. There were no significant differences between the three groups in the control of delayed nausea and vomiting. The most common adverse experiences in both granisetron groups were headache and constipation, both characteristic of 5-HT3 antagonists. Agitation, somnolence, diarrhoea and decreased appetite were reported more frequently by the met/dex group. CONCLUSIONS: Oral granisetron as a single agent is as effective as high doses of i.v. met/dex in preventing cisplatin-induced emesis. Oral granisetron in combination with a corticosteroid provides superior anti-emetic control to the met/dex regimen in patients undergoing highly emetogenic chemotherapy.


Assuntos
Cisplatino/efeitos adversos , Dexametasona/uso terapêutico , Granisetron/uso terapêutico , Metoclopramida/uso terapêutico , Vômito/prevenção & controle , Administração Oral , Adulto , Idoso , Distribuição de Qui-Quadrado , Constipação Intestinal/induzido quimicamente , Método Duplo-Cego , Quimioterapia Combinada , Europa (Continente) , Feminino , Granisetron/administração & dosagem , Granisetron/efeitos adversos , Cefaleia/induzido quimicamente , Humanos , Masculino , Metoclopramida/administração & dosagem , Pessoa de Meia-Idade , Náusea/induzido quimicamente , Náusea/prevenção & controle , Prognóstico , África do Sul , Vômito/induzido quimicamente
16.
Ann Oncol ; 5(2): 127-32, 1994 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-8186155

RESUMO

BACKGROUND: Because of its antitumour activity and its pharmacological advantage when administered by the intraperitoneal route, carboplatin was studied in a phase II multicentric trial. The aim of the study was to determine the response rate and the toxicity of carboplatin administered intraperitoneally and to determine if pathological complete response could be attained in women with macroscopic residual ovarian cancer at second-look laparotomy after intravenous cisplatin chemotherapy. PATIENTS AND METHODS: Twenty-nine patients with macroscopical residual disease after intravenous cisplatin-based chemotherapy at second-look laparotomy, were treated at that time with 300 mg/m2 of carboplatin administered in the abdominal cavity every four weeks for six cycles. In instances of negative findings at physical and CT scan examination, laparotomy evaluation was performed and the catheter was removed. The dose of carboplatin was increased or decreased according to hematological toxicity. RESULTS: Efficacy is evaluable in 25 pts: 2 pts had pathological complete responses and 1 pt had microscopic disease (12% response rate of evaluable patients). Toxicity is evaluable for 135 cycles in 29 patients. No grade 4 hematological toxicity was observed, 2 pts had grade 3 leukopenia and 3 pts had grade 3 thrombocytopenia; grade 3 vomiting was observed in 11% of cycles. No peritoneal complication was observed; catheter dysfunction occurred after the first cycle in one patient who refused a surgical procedure to remove the catheter and to pursue treatment. CONCLUSION: Intraperitoneal carboplatin demonstrates efficacy in patients with macroscopical residual disease at second-look laparotomy after first-line cisplatin chemotherapy. The recommended dose for further studies is 300 mg/m2 administered every 4 weeks. A low response rate does not favour a randomised study.


Assuntos
Carboplatina/uso terapêutico , Carcinoma/tratamento farmacológico , Neoplasias Ovarianas/tratamento farmacológico , Adulto , Idoso , Carboplatina/administração & dosagem , Carboplatina/efeitos adversos , Carcinoma/mortalidade , Carcinoma/patologia , Feminino , Humanos , Injeções Intraperitoneais , Laparotomia , Pessoa de Meia-Idade , Neoplasias Ovarianas/mortalidade , Neoplasias Ovarianas/patologia , Taxa de Sobrevida
17.
Bull Cancer ; 80(12): 1069-79, 1993 Dec.
Artigo em Francês | MEDLINE | ID: mdl-8081045

RESUMO

Present chemotherapy, with cisplatin combinations, currently offers the possibility of seeking adjuvant therapy in locally advanced and bulky carcinomas of the cervix, which have an unfavorable prognosis (nodal involvement). This initial adjuvant chemotherapy may improve the results of classical pelvic irradiation. From 1982 to 1987, a randomized phase III trial was performed in order to determine the long term effect of induction chemotherapy before irradiation in stage IIb-N1, III, M0 squamous cell carcinomas of the cervix. Radiotherapy (R) for all patients consisted in 50 Gy in the pelvis with a boost by external irradiation of the brachytherapy (cumulative dose of 68 Gy). The chemotherapy regimen (C + R group) was an association of methotrexate, chlorambucil, vincristine and cisplatin, given every 3 weeks, at least two courses were to be given before assessing efficacy and two more courses were given to patients who responded. After a follow up of 5-10 years, 76 patients were fully evaluable in the R arm and 75 in the C + R arm. The response rate (> 50%) to chemotherapy was 42.5% and after completion of treatment, remission rate was 93% in the R arm and 96% in the C + R arm. The disease-free survival was 40% in the C + R group and 35% in the R group, and the median survival was 42 and 45 months respectively (NS). The survival of patients with a complete response at the end of radiotherapy was significantly better in the C + R group when they are responding to chemotherapy, than in R group (P < 0.05). Radiotherapy was not modified whether patients had an initial chemotherapy or not; tolerance was not significantly different between the two groups. Efficacy of induction chemotherapy is an available test for long term results. This approach has the potential for improving the outlook in patients with high-risk primary cancer: earlier use and higher dose intensity of chemotherapy may be associated with a better cytoreduction, and probably a better survival. Further controlled investigations are warranted to confirm the value of adjuvant chemotherapy in cervical cancer.


Assuntos
Carcinoma de Células Escamosas/terapia , Neoplasias do Colo do Útero/terapia , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/radioterapia , Quimioterapia Adjuvante , Terapia Combinada , Feminino , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Doses de Radiação , Análise de Sobrevida , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/radioterapia
19.
Ann Pathol ; 13(1): 37-9, 1993.
Artigo em Francês | MEDLINE | ID: mdl-8387791

RESUMO

One case of hepatoid carcinoma of the ovary is described, and a review of the literature is performed. This tumor is now considered as a variety of common epithelial tumor of the ovary and must be distinguished from other ovarian-neoplasms, especially from hepatoid yolk sac tumors.


Assuntos
Carcinoma Hepatocelular/patologia , Neoplasias Ovarianas/patologia , Diferenciação Celular , Feminino , Humanos , Pessoa de Meia-Idade
20.
Eur Urol ; 23(1): 213-7; discussion 218, 1993.
Artigo em Inglês | MEDLINE | ID: mdl-8386652

RESUMO

UNLABELLED: For 30 months we have treated 115 non-pretreated non-seminomatous germ cell tumour (NSGCT) patients with poor risk characteristics. Patients were allocated randomly to either arm A: NCI regimen with vinblastine, etoposide (E), bleomycin and double dose cisplatin (P2) (PVeBV) 3 or 4 cycles Q3W, or arm B: modified PVeBV protocol (bleomycin in continuous infusion) Q4W than a cycle of high-dose E + cyclophosphamide + P2 (PEC) and autologous bone marrow transplantation (ABMT). 114 patients are evaluable: 81 testicular, 18 mediastinal and 15 retroperitoneal primaries. RESULTS: Arm A 57 patients: 7 patients did not complete the treatment. There were 15 failures, 9 PR, 33 CR. Seven patients relapsed. The 2-year survival is 82%. Arm B 57 patients: 16 patients did not complete the treatment. There were 26 failures, 7 PR and 24 CR. Nine patients relapsed. The 2-year survival is 60%. Both CR rates and survival are not statistically different. This trial fails to show any benefit of early intensified chemotherapy + ABMT to increase the CR and survival rates in poor risk NSGCT.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Transplante de Medula Óssea , Neoplasias Embrionárias de Células Germinativas/terapia , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Biomarcadores Tumorais/sangue , Terapia Combinada , Humanos , Masculino , Neoplasias do Mediastino/terapia , Neoplasias Embrionárias de Células Germinativas/sangue , Neoplasias Embrionárias de Células Germinativas/secundário , Indução de Remissão , Neoplasias Retroperitoneais/terapia , Risco , Neoplasias Testiculares/terapia
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