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1.
Cancer ; 100(8): 1712-6, 2004 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-15073861

RESUMO

BACKGROUND: Temozolomide (TMZ) and 1, 3-bis (2-chloroethyl)-1-nitrosourea (BCNU) are reported to be active agents in anaplastic glioma (AG). TMZ has also been shown to deplete alkyltransferase, a DNA repair enzyme that contributes to nitrosourea resistance. The objective of the current study was to determine the efficacy and toxicity profile of a combination of these agents before radiotherapy in newly diagnosed AG. METHODS: Eligibility criteria included histologically confirmed newly diagnosed AG with measurable enhancing disease, a Karnofsky performance score (KPS) > or = 60, normal pulmonary function, and normal laboratory parameters. In addition, informed consent was obtained from all patients. BCNU given at a dose of 150 mg/m(2) intravenously was followed after 2 hours by TMZ given at a dose of 550 mg/m(2) orally on Day 1 of a 42-day cycle to a maximum of 4 cycles, unless there was tumor progression or unacceptable toxicity. RESULTS: Forty-one eligible patients were accrued. Their median age was 40 years. Seventy-six percent of patients had a KPS of 90-100. The histology was 81% anaplastic astrocytoma, 12% anaplastic oligodendroglioma, and 7% mixed tumors. Twenty-two percent of patients did not complete 4 cycles because of toxicity, mainly hematologic. Forty-six percent of patients experienced Grade 3 or 4 (according to National Cancer Institute Common Toxicity Criteria) thrombocytopenia. Twenty percent had Grade 4 granulocytopenia. Two patients died while receiving therapy, 1 of progressive disease and the other of Pneumocystis carinii pneumonia. The complete and partial response rates were 2% and 27% respectively. An additional 54% of patients had stable disease. Seventeen percent developed progressive disease (10% after the first cycle and 7% after the second cycle). CONCLUSIONS: This neoadjuvant strategy was associated with significant myelosuppression and a modest response rate in patients with newly diagnosed AG.


Assuntos
Antineoplásicos Alquilantes/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Encefálicas/tratamento farmacológico , Carmustina/uso terapêutico , Dacarbazina/análogos & derivados , Dacarbazina/uso terapêutico , Glioma/tratamento farmacológico , Adolescente , Adulto , Idoso , Antineoplásicos Alquilantes/administração & dosagem , Antineoplásicos Alquilantes/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neoplasias Encefálicas/patologia , Carmustina/administração & dosagem , Carmustina/efeitos adversos , Dacarbazina/administração & dosagem , Dacarbazina/efeitos adversos , Progressão da Doença , Resistencia a Medicamentos Antineoplásicos , Feminino , Glioma/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Radioterapia Adjuvante , Análise de Sobrevida , Temozolomida
3.
Biol Psychiatry ; 52(5): 386-92, 2002 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-12242054

RESUMO

BACKGROUND: The rationale for treating patients with psychotic major depression (PMD) with glucocorticosteroid receptor (GR) antagonists is explained. METHODS: Thirty patients with PMD, with Hamilton Rating Scale for Depression (HAMD-21) scores of 18 or greater, were assigned in an open label trial to receive 50 mg, 600 mg, or 1200 mg of mifepristone for 7 days. RESULTS: All the subjects completed the protocol; there were no dropouts. Side effects were mild and sporadic. Of 19 subjects in the combined 600- and 1200-mg group, 13 had a 30% or greater decline in their Brief Psychiatric Rating Scale (BPRS) scores, compared with 4 of 11 in the 50-mg group. In the 600- and 1200-mg group, 12 of 19 subjects showed a 50% decline in the BPRS positive symptom subscale, a more sensitive index for the symptoms seen in PMD, compared with 3 of 11 in the 50-mg group; 8 of 19 subjects in the 600- and 1200-mg group had a 50% decline in the HAMD-21, compared with 2 of 11 in the 50-mg group. CONCLUSIONS: These results suggest that short term use of GR antagonists may be effective in the treatment of psychotic major depression and that further blinded studies are warranted.


Assuntos
Transtorno Depressivo Maior/tratamento farmacológico , Antagonistas de Hormônios/administração & dosagem , Mifepristona/administração & dosagem , Adulto , Idoso , Relação Dose-Resposta a Droga , Feminino , Antagonistas de Hormônios/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Mifepristona/uso terapêutico , Escalas de Graduação Psiquiátrica , Resultado do Tratamento
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