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1.
Leukemia ; 31(9): 1944-1950, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28626220

RESUMO

The use of darbepoetin alfa to treat anemia in patients with lower-risk myelodysplastic syndromes (MDS) was evaluated in a phase 3 trial. Eligible patients had low/intermediate-1 risk MDS, hemoglobin ⩽10 g/dl, low transfusion burden and serum erythropoietin (EPO) ⩽500 mU/ml. Patients were randomized 2:1 to receive 24 weeks of subcutaneous darbepoetin alfa 500 µg or placebo every 3 weeks (Q3W), followed by 48 weeks of open-label darbepoetin alfa. A total of 147 patients were randomized, with median hemoglobin of 9.3 (Q1:8.8, Q3:9.7) g/dl and median baseline serum EPO of 69 (Q1:36, Q3:158) mU/ml. Transfusion incidence from weeks 5-24 was significantly lower with darbepoetin alfa versus placebo (36.1% (35/97) versus 59.2% (29/49), P=0.008) and erythroid response rates increased significantly with darbepoetin alfa (14.7% (11/75 evaluable) versus 0% (0/35 evaluable), P=0.016). In the 48-week open-label period, dose frequency increased from Q3W to Q2W in 81% (102/126) of patients; this was associated with a higher hematologic improvement-erythroid response rate (34.7% (34/98)). Safety results were consistent with a previous darbepoetin alfa phase 2 MDS trial. In conclusion, 24 weeks of darbepoetin alfa Q3W significantly reduced transfusions and increased rates of erythroid response with no new safety signals in lower-risk MDS (registered as EudraCT#2009-016522-14 and NCT#01362140).


Assuntos
Anemia/tratamento farmacológico , Darbepoetina alfa/administração & dosagem , Síndromes Mielodisplásicas/complicações , Idoso , Idoso de 80 Anos ou mais , Transfusão de Sangue , Darbepoetina alfa/uso terapêutico , Eritropoetina/sangue , Feminino , Hemoglobinas/análise , Humanos , Masculino , Risco
2.
Leukemia ; 30(4): 897-905, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26500139

RESUMO

After failure of erythropoiesis-stimulating agents (ESAs), lenalidomide (LEN) yields red blood cell (RBC) transfusion independence (TI) in 20-30% of lower-risk non-del5q myelodysplastic syndrome (MDS). Several observations suggest an additive effect of ESA and LEN in this situation. We performed a randomized phase III study in 131 RBC transfusion-dependent (TD, median transfusion requirement six RBC units per 8 weeks) lower-risk ESA-refractory non-del5q MDS. Patients received LEN alone, 10 mg per day, 21 days per 4 weeks (L arm) or LEN (same schedule) + erythropoietin (EPO) beta, 60,000 U per week (LE arm). In an intent-to-treat (ITT) analysis, erythroid response (HI-E, IWG 2006 criteria) after four treatment cycles (primary end point) was 23.1% (95% CI 13.5-35.2) in the L arm and 39.4% (95% CI 27.6-52.2) in the LE arm (P=0.044), while RBC-TI was reached in 13.8 and 24.2% of the patients in the L and LE arms, respectively (P=0.13). Median response duration was 18.1 and 15.1 months in the L and LE arms, respectively (P=0.47). Side effects were moderate and similar in the two arms. Low baseline serum EPO level and a G polymorphism of CRBN gene predicted HI-E. Combining LEN and EPO significantly improves erythroid response over LEN alone in lower-risk non-del5q MDS patients with anemia resistant to ESA.


Assuntos
Transfusão de Sangue , Deleção Cromossômica , Cromossomos Humanos Par 5/genética , Eritropoetina/uso terapêutico , Síndromes Mielodisplásicas/tratamento farmacológico , Talidomida/análogos & derivados , Idoso , Anemia/prevenção & controle , Inibidores da Angiogênese/uso terapêutico , Quimioterapia Combinada , Feminino , Seguimentos , Humanos , Lenalidomida , Masculino , Pessoa de Meia-Idade , Síndromes Mielodisplásicas/genética , Síndromes Mielodisplásicas/patologia , Estadiamento de Neoplasias , Prognóstico , Estudos Prospectivos , Fatores de Risco , Talidomida/uso terapêutico
3.
Ann Hematol ; 92(5): 621-31, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23358617

RESUMO

Darbepoetin (DAR), with or without granulocyte colony-stimulating factor (G-CSF), has proved effective in treating anemia in patients with lower-risk myelodysplastic syndrome (MDS), but its effects on quality of life (QoL) and exercise functioning are less well established. In this phase II study (no. NCT00443339), lower-risk MDS patients with anemia and endogenous erythropoietin (EPO) level <500 IU/L received DAR 500 µg once every 2 weeks for 12 weeks, with G-CSF added at week 12 in non-responders. Physical performance was assessed with the 6-min walking test and, for fit patients, maximal oxygen consumption (VO2max). QoL was evaluated using SF-36 and FACT-An tests. In 99 patients, erythroid response rate according to IWG 2006 criteria was 48 and 56 % at 12 and 24 weeks, respectively. Addition of G-CSF rescued 22 % of non-responders. In 48 % of the responders, interval between darbepoetin injections could be increased for maintenance treatment. Serum EPO level was the only independent predictive factor of response at 12 weeks, and its most discriminant cutoff value was 100 IU/L. QoL and VO2max showed improvement over time in responders, compared with non-responders. With a median follow-up of 52 months, median response duration was not reached, and 3-year cumulative incidence of acute myeloid leukemia and overall survival (OS) was 14.5 and 70 %, respectively. Baseline transfusion dependence, International Prognostic Score System (IPSS), and Revised IPSS accurately predicted OS from treatment onset. Tolerance of darbepoetin was good. In conclusion, this regimen of darbepoetin every 2 weeks yielded high response rates and prolonged response duration. Objective improvement in exercise testing and in patient-reported QoL confirms the clinical relevance of anemia correction with erythropoiesis-stimulating agents.


Assuntos
Eritropoetina/análogos & derivados , Tolerância ao Exercício/efeitos dos fármacos , Fator Estimulador de Colônias de Granulócitos/administração & dosagem , Síndromes Mielodisplásicas/tratamento farmacológico , Qualidade de Vida , Idoso , Anemia/complicações , Anemia/tratamento farmacológico , Anemia/mortalidade , Anemia/fisiopatologia , Darbepoetina alfa , Eritropoetina/administração & dosagem , Eritropoetina/efeitos adversos , Exercício Físico/fisiologia , Feminino , Filgrastim , Fator Estimulador de Colônias de Granulócitos/efeitos adversos , Hematínicos/administração & dosagem , Hematínicos/efeitos adversos , Humanos , Masculino , Síndromes Mielodisplásicas/complicações , Síndromes Mielodisplásicas/mortalidade , Síndromes Mielodisplásicas/fisiopatologia , Proteínas Recombinantes/administração & dosagem , Proteínas Recombinantes/efeitos adversos , Risco , Análise de Sobrevida , Resultado do Tratamento
4.
Ann Oncol ; 23(2): 346-52, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21562072

RESUMO

BACKGROUND: Platinum rechallenge or weekly topotecan in combination have not been evaluated in randomized trials for resistant recurrent ovarian cancer (ROC). METHODS: Patients with ROC after first- or second-line treatment including a platinum and taxane and progression within 6 months were randomized to weekly paclitaxel (wP, 80 mg/m(2)/week) alone or in combination with carboplatin (C, area under the curve of 5 mg/ml/min every 4 weeks) or weekly topotecan (wT, 3 mg/m(2)/week). Primary end point was progression-free survival (PFS) comparing wP and combination therapy. RESULTS: Patients (n = 165) received a median three cycles in each arm. Nonhematologic toxicity was not different, except increased hypersensitivity reactions with wP + C. Grade 3-4 hematologic toxic effects with wP, wP + C, and wP + wT, respectively, were neutropenia in 13%, 54%, and 42%; febrile neutropenia in 0%, 4%, and 5%; and anemia in 6%, 19%, and 29%. Response rates were 35%, 37%, and 39%, and median PFS times were 3.7, 4.8, and 5.4 months, respectively. PFS was not significantly different among the treatment arms [hazard ratio (HR) 0.922; 95% confidence interval (CI) 0.765-1.111; P = 0.46] or between monotherapy and combination therapy (HR 0.951; 95% CI 0.686-1.318; P = 0.76). CONCLUSIONS: Combination chemotherapy in platinum-resistant ROC was more toxic than weekly paclitaxel and did not significantly prolong PFS.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Recidiva Local de Neoplasia/tratamento farmacológico , Neoplasias Ovarianas/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Carboplatina/administração & dosagem , Feminino , Humanos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/mortalidade , Neoplasias Ovarianas/mortalidade , Paclitaxel/administração & dosagem , Análise de Sobrevida , Topotecan/administração & dosagem
5.
Leuk Res ; 35(11): 1530-3, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21803419

RESUMO

We evaluated the prognostic value of serum ferritin (SF) level at diagnosis in 318 newly diagnosed IPSS low and int 1 (lower) risk MDS patients included in the French MDS registry, who did not require RBC transfusions and had baseline SF level determination. Increased baseline SF level (>300 ng/ml) was correlated with male gender, more pronounced anaemia, and diagnosis of RARS but had no negative impact on progression to AML or survival.


Assuntos
Transfusão de Sangue , Ferritinas/metabolismo , Síndromes Mielodisplásicas/diagnóstico , Síndromes Mielodisplásicas/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Síndromes Mielodisplásicas/sangue , Prognóstico , Fatores de Risco , Taxa de Sobrevida
7.
Ann Oncol ; 20(12): 1959-63, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19556321

RESUMO

BACKGROUND: This phase II study evaluated the clinical benefit of pegylated liposomal doxorubicin (PLD) and docetaxel (Taxotere) as first-line therapy for metastatic breast cancer (MBC). PATIENTS AND METHODS: MBC patients were enrolled to receive six cycles of PLD 35 mg/m2 (day 1) and docetaxel 40 mg/m2 (days 1 and 15), every 28 days (group A). Because of unacceptable toxic effects, doses were modified to PLD 30 mg/m2 (day 1) and docetaxel 75 mg/m2 (day 2), every 3 weeks (group B). The primary end point was clinical benefit. RESULTS: Sixty-seven patients were included (group A, 53; group B, 14). In both groups, the median number of cycles delivered was 4 and the overall dose intensity was 82% for docetaxel and 71% for PLD. In group A, main toxic effects were hematologic, palmar-plantar erythrodysesthesia (PPE), and stomatitis. In group B, higher rates of grade 3-4 PPE, febrile neutropenia, and hematologic toxic effects were reported. The rate of clinical benefit was 47%. Among patients with a measurable disease, 49% achieved a partial response, 27% had a stable disease, and 13% progressed, according to RECIST criteria. CONCLUSION: The combination of PLD and docetaxel delivered at planned doses in this study yields unacceptable toxicity and should not be used routinely in patients with MBC.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neoplasias da Mama/patologia , Docetaxel , Doxorrubicina/administração & dosagem , Doxorrubicina/análogos & derivados , Feminino , Humanos , Pessoa de Meia-Idade , Metástase Neoplásica , Polietilenoglicóis/administração & dosagem , Taxoides/administração & dosagem
8.
Leukemia ; 23(4): 673-8, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19151787

RESUMO

Erythropoiesis-stimulating agents (ESAs) remain the first-line treatment of anemia in lower risk myelodysplastic syndromes (MDS) without 5q deletion. A preliminary report suggested that adding all-trans retinoic acid (ATRA) to ESAs may improve their erythroid response, particularly in patients with high endogenous erythropoietin (EPO) level, and may improve other cytopenias. We conducted a prospective multicenter study of EPO-beta and ATRA in anemic MDS patients with marrow blasts <10% and either previous ESA failure or relapse, endogenous EPO >500 U/l or other cytopenia(s) (absolute neutrophilic count <1.0 G/l or platelets <50 G/l). A total of 59 patients were evaluable after 12 weeks of treatment. The erythroid response rates according to IWG 2000 and 2006 criteria, respectively, were as follows: overall: 49 and 36%; patients with previous ESA failure (n=28): 43 and 32%; patients with endogenous EPO >500 U/l (n=18): 11 and 19%; patients transfused >2 red blood cells units/month (n=28) 43 and 39%. Only one neutrophil, but no platelet response, and no major side effect were observed. EPO-beta-ATRA combination appears a possible therapeutic option in anemia of MDS having failed an ESA alone, but not in patients with high endogenous EPO level, and does not improve neutropenia and thrombocytopenia.


Assuntos
Eritropoetina/uso terapêutico , Síndromes Mielodisplásicas/tratamento farmacológico , Tretinoína/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Quimioterapia Combinada , Feminino , Humanos , Contagem de Leucócitos , Masculino , Pessoa de Meia-Idade , Neutropenia/tratamento farmacológico , Neutrófilos , Contagem de Plaquetas , Proteínas Recombinantes , Trombocitopenia/tratamento farmacológico , Resultado do Tratamento , Adulto Jovem
10.
Clin Exp Dermatol ; 33(4): 465-8, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18462441

RESUMO

The presence of coexistent disseminated granuloma annulare (GA) and Hodgkin's disease (HD) is rare, with only six reported patients to date. We describe a patient with HD who had limited GA 2 years before the diagnosis of HD; widespread GA appeared after first-line treatment and heralded disease relapse. GA lesions showed hypermetabolic images on positron emission tomography, an interesting finding of unknown significance. We suggest a new pathophysiological mechanism for this association, i.e. that the reactive T-lymphocyte population in HD may contribute to granuloma formation through the secretion of cytokines and the subsequent upregulation of certain metalloproteinases. Diffuse cutaneous GA should raise the possibility of underlying systemic lymphoma or HD.


Assuntos
Granuloma Anular/complicações , Doença de Hodgkin/complicações , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Granuloma Anular/diagnóstico por imagem , Doença de Hodgkin/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Tomografia por Emissão de Pósitrons , Terapia de Salvação/métodos , Transplante de Células-Tronco , Resultado do Tratamento
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