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1.
N Engl J Med ; 385(5): 395-405, 2021 07 29.
Artigo em Inglês | MEDLINE | ID: mdl-34320285

RESUMO

BACKGROUND: For postmenopausal women with hormone-receptor-positive breast cancer, the most effective duration for adjuvant therapy with an aromatase inhibitor remains unclear. METHODS: In this prospective, phase 3 trial, we randomly assigned postmenopausal women with hormone-receptor-positive breast cancer who had received 5 years of adjuvant endocrine therapy to receive the aromatase inhibitor anastrozole for an additional 2 years (2-year group, receiving a total of 7 years) or an additional 5 years (5-year group, receiving a total of 10 years). The primary end point was disease-free survival. The primary analysis included all the patients who were still participating in the trial and who had no recurrence 2 years after randomization (i.e., when treatment in the 2-year group had ended). Secondary end points were overall survival, contralateral breast cancer, second primary cancer, and clinical bone fracture. RESULTS: Among the 3484 women who were enrolled in the trial, 3208 remained in the trial without disease progression after the first 2 years of extended anastrozole treatment following randomization. Among these women, disease progression or death occurred in 335 women in each treatment group in the primary-analysis set at 8 years (hazard ratio, 0.99; 95% confidence interval [CI], 0.85 to 1.15; P = 0.90). No between-group differences occurred in most secondary end points, and subgroup analyses did not indicate differences in any particular subgroup. The risk of clinical bone fracture was higher in the 5-year group than in the 2-year group (hazard ratio, 1.35; 95% CI, 1.00 to 1.84). CONCLUSIONS: In postmenopausal women with hormone-receptor-positive breast cancer who had received 5 years of adjuvant endocrine therapy, extending hormone therapy by 5 years provided no benefit over a 2-year extension but was associated with a greater risk of bone fracture. (Funded by AstraZeneca and the Austrian Breast and Colorectal Cancer Study Group; ABCSG-16/SALSA ClinicalTrials.gov number, NCT00295620.).


Assuntos
Anastrozol/administração & dosagem , Inibidores da Aromatase/administração & dosagem , Neoplasias da Mama/tratamento farmacológico , Recidiva Local de Neoplasia/prevenção & controle , Administração Oral , Idoso , Anastrozol/efeitos adversos , Antineoplásicos Hormonais/administração & dosagem , Antineoplásicos Hormonais/uso terapêutico , Inibidores da Aromatase/efeitos adversos , Neoplasias da Mama/mortalidade , Neoplasias da Mama/cirurgia , Quimioterapia Adjuvante , Intervalo Livre de Doença , Fraturas Ósseas/epidemiologia , Fraturas Ósseas/etiologia , Humanos , Estimativa de Kaplan-Meier , Pessoa de Meia-Idade , Pós-Menopausa , Estudos Prospectivos , Receptores de Estrogênio , Receptores de Progesterona , Tamoxifeno/uso terapêutico
2.
Eur J Haematol ; 102(5): 437-441, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30725494

RESUMO

Acute myeloid leukemia (AML) is a disease of the elderly population and survival remains poor after failure of hypomethylating agents (HMA). The BCL-2 inhibitor venetoclax demonstrated activity as monotherapy and in combination with chemotherapy or HMA in AML. In this case series, patients with secondary AML (sAML) not eligible for intensive chemotherapy and refractory to HMA were treated with venetoclax within a named patient program at our tertiary cancer center in Salzburg, Austria. Between April 2017 and September 2018, seven patients with sAML received venetoclax therapy. Two out of seven patients achieved a complete remission upon venetoclax initiation with a PFS of 505 days and 352 days and another patient achieved complete peripheral blood blast clearing within nine days after start of venetoclax. Among the venetoclax responders, primary refractory disease to prior HMA therapy was documented, 2 patients harbored IDH1/IDH2 mutations and one patient had an antecedent myeloproliferative neoplasm. High BCL-2 and/or BIM expression in myeloblasts was found in venetoclax responders and response was significantly associated with overall survival (responders: 364 days versus non-responders: 24 days, P = 0.018). Venetoclax monotherapy is safe and is able to induce durable responses in elderly patients with secondary AML after treatment failure with HMA.


Assuntos
Antineoplásicos/uso terapêutico , Proteína 11 Semelhante a Bcl-2/genética , Compostos Bicíclicos Heterocíclicos com Pontes/uso terapêutico , Leucemia Mieloide Aguda/tratamento farmacológico , Leucemia Mieloide Aguda/genética , Proteínas Proto-Oncogênicas c-bcl-2/genética , Sulfonamidas/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Proteína 11 Semelhante a Bcl-2/metabolismo , Biomarcadores Tumorais , Metilação de DNA/efeitos dos fármacos , Resistencia a Medicamentos Antineoplásicos , Feminino , Regulação Leucêmica da Expressão Gênica/efeitos dos fármacos , Humanos , Leucemia Mieloide Aguda/diagnóstico , Masculino , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Indução de Remissão , Retratamento , Resultado do Tratamento
3.
Cancer Chemother Pharmacol ; 83(2): 265-275, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30430227

RESUMO

PURPOSE: Investigation of the impact of co-medication on the plasma levels of curcumin and tetrahydrocurcumin (THC) in cancer patients and a comparison of the pharmacokinetics of curcumin and plasma levels of THC between cancer patients and healthy individuals following intravenous infusion of Lipocurc™ (liposomal curcumin). METHODS: Correlation analysis was used to determine the impact of co-medication on infusion rate normalized plasma levels of curcumin and THC in cancer patients and to compare the plasma levels of curcumin and THC at different infusion rates between cancer patients and healthy individuals. In vitro hepatocyte and red blood cell distribution experiments were conducted with Lipocurc™ to support clinical findings. Plasma concentration time data were analyzed by the non-compartmental method to determine and compare the pharmacokinetic parameters of curcumin in cancer patients and healthy individuals. RESULTS: Of 44 co-medications studied, three medications targeting the renin-angiotensin system, Lisinopril, Ramipril, and Valsartan elevated plasma levels of curcumin and THC in three cancer patients infused with Lipocurc™. Cell distribution experiments indicated that the disposition of curcumin in red blood cells may be a target for elevation of the plasma levels of curcumin. Plasma levels of curcumin in cancer patients increased to a greater extent with increased infusion rate compared to healthy individuals. Upon termination of infusion, the elimination phase for curcumin was shorter with a shorter terminal half-life and smaller volume of distribution for curcumin in cancer patients compared to healthy individuals. CONCLUSION: Either co-medications or health status, or both, can impact the pharmacokinetics of curcumin infusion (as Lipocurc™) in cancer patients.


Assuntos
Curcumina/análogos & derivados , Curcumina/farmacocinética , Eritrócitos/metabolismo , Hepatócitos/metabolismo , Lipossomos/administração & dosagem , Neoplasias/tratamento farmacológico , Animais , Estudos de Casos e Controles , Células Cultivadas , Curcumina/administração & dosagem , Curcumina/química , Cães , Quimioterapia Combinada , Eritrócitos/efeitos dos fármacos , Voluntários Saudáveis , Hepatócitos/efeitos dos fármacos , Humanos , Infusões Intravenosas , Masculino , Neoplasias/metabolismo , Distribuição Tecidual
4.
Cancer Chemother Pharmacol ; 82(4): 695-706, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30074076

RESUMO

PURPOSE: This study was conducted to investigate the safety and tolerability of increasing doses of liposomal curcumin in patients with metastatic cancer. Investigations of anti-tumor activity and of the pharmacokinetics of curcumin were secondary objectives. METHODS: In this phase I, single-center, open-label study in patients with metastatic tumors, liposomal curcumin was administered as a weekly intravenous infusion for 8 weeks. Dose escalation was started at 100 mg/m2 over 8 h and the dose increased to 300 mg/m2 over 6 h. RESULTS: 32 patients were treated. No dose-limiting toxicity was observed in 26 patients at doses between 100 and 300 mg/m2 over 8 h. Of six patients receiving 300 mg/m2 over 6 h, one patient developed hemolysis, and three other patients experienced hemoglobin decreases > 2 g/dL without signs of hemolysis. Pharmacokinetic analyses revealed stable curcumin plasma concentrations during infusion followed by rapid declines to undetectable levels after the infusion. Anti-tumor activity by RECIST V1.1 was not detected. Significant tumor marker responses and transient clinical benefit were observed in two patients. CONCLUSION: 300 mg/m2 liposomal curcumin over 6 h was the maximum tolerated dose in these heavily pretreated patients, and is the recommended starting dose for anti-cancer trials.


Assuntos
Neoplasias do Colo , Curcumina , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Neoplasias da Próstata , Adulto , Idoso , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Antineoplásicos/farmacocinética , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/patologia , Curcumina/administração & dosagem , Curcumina/efeitos adversos , Curcumina/farmacocinética , Relação Dose-Resposta a Droga , Monitoramento de Medicamentos/métodos , Tolerância a Medicamentos , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/sangue , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/diagnóstico , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/etiologia , Feminino , Hemoglobinas/análise , Hemólise/efeitos dos fármacos , Humanos , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Metástase Neoplásica/tratamento farmacológico , Metástase Neoplásica/patologia , Estadiamento de Neoplasias , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/patologia , Resultado do Tratamento
5.
Oncotarget ; 9(29): 20928-20940, 2018 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-29755699

RESUMO

Primary resistant Hodgkin lymphoma is an aggressive disease with few treatment options and short survival. Neoplastic cells of classical Hodgkin lymphoma are heavily dependent on microenvironmental stimuli, regularly express PD-L1, and a relevant proportion of relapsed patients is sensitive to blocking of the PD1/PD-L1 axis. However, response duration is limited and further treatment options are unknown but urgently needed. We report a case of a patient without relevant response to five subsequent chemotherapy regimens who immediately and dramatically responded to an anti-PD1 mab. During the following two years she responded to the anti-CTLA-4 mab ipilimumab, the Jak2 inhibitor ruxolitinib, and a combination of lenalidomide plus cyclophosphamide given in subsequent relapses. A thorough genomic analysis demonstrated seven genomic alterations with six of them not previously described in this disease (i.e. BRIP1 G212fs*62, KRAS L19F, KDM5A R1239W, MYC A59T, ARIDA1A E1683fs*15 and TP53 277Y). Three alterations were considered actionable and one of them drugable. The number of mutations increased over time and the BRIP1 mutation was found to be a germline mutation.

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