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1.
Int J Clin Pharmacol Ther ; 46(8): 407-14, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18793582

RESUMO

OBJECTIVE: The aim of this study was to compare the efficacy of Lutrate 3.75 and 7.5 mg depot to marketed references Lucrin 3.75 mg and Procrin 7.5 mg depot. METHODS: 20 healthy male volunteers were randomly assigned to receive 1 of 4 active single dose treatments in this double-blind, parallel-group pilot study. Leuprolide acetate and testosterone levels were quantified by radioimmunoassays. RESULTS: The pharmacokinetic profile of leuprolide could be well-described by a 4-step release curve. Leuprolide levels were detectable 14 days longer after injection of the test formulations as compared to the reference products. The total AUC observed with 3.75 and 7.5 mg of the test product were approximately 1.5- and 2.2-fold higher, compared to the reference products, respectively. After the expected testosterone "flare-up" effect, castration was achieved in 4 of 4 subjects with the test formulations, 4 of 5 subjects with Procrin and 2 of 5 subjects with Lucrin. On average, castration lasted more than 1 month with both test formulations compared to 2 weeks with the reference products. CONCLUSION: Sustained release of leuprolide from this new depot formulation suppressed testosterone levels at least as effectively and for a longer period of time than the reference products.


Assuntos
Antineoplásicos Hormonais/administração & dosagem , Leuprolida/administração & dosagem , Testosterona/sangue , Adulto , Antineoplásicos Hormonais/efeitos adversos , Antineoplásicos Hormonais/farmacocinética , Área Sob a Curva , Preparações de Ação Retardada , Relação Dose-Resposta a Droga , Método Duplo-Cego , Humanos , Leuprolida/efeitos adversos , Leuprolida/farmacocinética , Masculino , Projetos Piloto , Antígeno Prostático Específico/sangue , Antígeno Prostático Específico/efeitos dos fármacos , Radioimunoensaio , Fatores de Tempo
2.
Oncology ; 52(1): 24-31, 1995.
Artigo em Inglês | MEDLINE | ID: mdl-7800338

RESUMO

203 patients with inoperable non-small cell lung cancer (NSCLC) were randomized to receive ifosfamide (IFO) 2.5 g/m2 days 1-2 + epirubicin (EPI) 70 mg/m2 day 1 with cisplatin (DDP) 70 mg/m2 day 1 (arm IEP), or without cisplatin (arm IE). For uroprophylaxis, mesna i.v. 20% of IFO dose, hour 0 and 3, and oral, 40% of IFO dose, hour 6 and 9, days 1-2 was given. Cycles were repeated every 28 days. Four cycles were required for evaluation purposes. After completion of chemotherapy, external beam irradiation 40 Gy was given over 4 weeks for stage III B responders. Most of the patients with stable disease, partial response or complete response (CR) received 6 cycles. The median follow-up of the trial is 30 months. There were no differences in overall response rates: arm IEP: 52% (2% CR); arm IE: 51% (13.5% CR). Median time to progression was 6 months (arm IEP) and 4 months (arm IE) (p = 0.4844). Toxicity ranged from mild to moderate. Nephrotoxicity was not seen; only 6 patients had neurotoxic side effects of short duration. Median survival according to treatment was 12 months for IEP arm (12% at 2 years) and 10 months for IE arm (21% at 2 years). IFO/mesna+EPI or IFO/mesna, EPI plus DDP appeared to be an active and well tolerated combination for the treatment of NSCLC, with a good survival time.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Cisplatino/administração & dosagem , Epirubicina/administração & dosagem , Ifosfamida/administração & dosagem , Neoplasias Pulmonares/tratamento farmacológico , Adulto , Idoso , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Feminino , Humanos , Neoplasias Pulmonares/mortalidade , Masculino , Pessoa de Meia-Idade , Taxa de Sobrevida
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