Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 86
Filtrar
1.
Future Oncol ; 20(6): 307-315, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38410920

RESUMO

Biliary tract cancer is a highly heterogeneous group of gastrointestinal cancers, and the only curative treatment is surgery, which is only applicable at early stages of the malignancy. ADJUBIL, a phase II trial (NCT05239169), aims to evaluate immunotherapy with durvalumab and tremelimumab with or without capecitabine in adjuvant situations for biliary tract cancers. A total of 40 prospective patients will be randomly assigned following surgery, consisting of a two-arm feasibility pilot part with a pick-the-winner design with durvalumab and tremelimumab in combination with or without capecitabine.


This article describes the design of a phase II clinical trial called ADJUBIL, which evaluates the use of immunotherapy (durvalumab and tremelimumab) with or without classic chemotherapy (capecitabine) in biliary tract cancer patients who have undergone curative surgery. This type of treatment is also called adjuvant therapy, meaning it is used after the primary treatment. Biliary tract cancer is a rare type of liver cancer, often diagnosed late. Following surgery, patients may experience an early return of the disease, called tumor relapse. To avoid or delay tumor relapse, patients need extra treatment. Pure chemotherapy (capecitabine) is the standard after curative surgery. For patients with no option for cure, chemotherapy together with new powerful immunotherapy has become standard. This study will recruit 40 adult patients with tumor removal, who will be randomly divided into two groups. Half of them will be treated with immunotherapy only (durvalumab and tremelimumab). The other half will be treated with capecitabine together with immunotherapy. This study will continue for 12 months, but the treatment can be stopped if, for example, the tumor reoccurs or any possible side effect of the therapy is detected. The most effective treatment type will be selected. This type of selection is called pick-the winner.


Assuntos
Adjuvantes Imunológicos , Neoplasias do Sistema Biliar , Humanos , Adjuvantes Imunológicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias do Sistema Biliar/tratamento farmacológico , Neoplasias do Sistema Biliar/patologia , Capecitabina/uso terapêutico , Ensaios Clínicos Fase II como Assunto , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto
2.
Eur J Haematol ; 111(2): 220-228, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37094812

RESUMO

BACKGROUND: Long-term clinical and molecular remissions in patients with mantle cell lymphoma (MCL) after autologous stem cell transplantation (ASCT) have been evaluated in only a few studies. DESIGN AND METHODS: Sixty-five patients with MCL received ASCT (54 first-line ASCT, 10 second-line ASCT, and 1 third-line ASCT). In the case of long-term remission (≥5 years; n = 27), peripheral blood was tested for minimal residual disease (MRD) by t(11;14)- and IGH-PCR at the last follow-up. RESULTS: Ten-year overall survival (OS), progression-free survival (PFS), and freedom from progression (FFP) after first-line ASCT were 64%, 52%, and 59% versus after second-line ASCT 50%, 20%, and 20%, respectively. Five-year OS, PFS, and FFP for the first-line cohort were 79%, 63%, and 69%, respectively. Five-year OS, PFS, and FFP after second-line ASCT were 60%, 30%, and 30%, respectively. Treatment-related mortality (3 months after ASCT) was 1.5%. So far 26 patients developed sustained long-term clinical and molecular complete remissions of up to 19 years following ASCT in first treatment line. CONCLUSION: Sustained long-term clinical and molecular remissions are achievable following ASCT.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Linfoma de Célula do Manto , Humanos , Intervalo Livre de Doença , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Linfoma de Célula do Manto/terapia , Linfoma de Célula do Manto/tratamento farmacológico , Estudos Retrospectivos , Transplante de Células-Tronco , Análise de Sobrevida , Transplante Autólogo , Resultado do Tratamento , Adulto
3.
Strahlenther Onkol ; 198(1): 39-46, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34735577

RESUMO

PURPOSE: The prognosis of an early relapse of diffuse large B-cell lymphoma (DLBCL) appears to be poor following autologous stem cell transplantation (ASCT). The aim of this study is to contribute data to the open question on whether additional radiotherapy can improve the outcome. PATIENTS AND METHODS: Forty-eight patients with an early relapse (median 4 months after the end of initial immunochemotherapy, range 1-11) of DLBCL have been treated in our institution with high-dose therapy (usually the BEAM protocol) and ASCT since 2008 (median age 61 years, range 28-73). Twenty-three patients received ASCT in a second treatment line, 25 in a third line (19 refractory to second-line salvage therapy, 5 after second relapse). Fifteen of these 48 patients received radiotherapy (36-50 Gy, median 40) of residual masses after ASCT. RESULTS: Three-year overall survival (OS) and progression-free survival (PFS) after second-line ASCT were 61 and 57%, after third-line ASCT 47 and 44%, respectively, without significant differences. A prognostic factor was the International Prognostic Index (IPI) at the start of salvage therapy. Three-year OS and PFS in low-risk patients were 69 and 69%, in low-intermediate-risk 63 and 53%, and in high-intermediate-risk 23 and 23%, respectively (p = 0.033). Twenty-three patients achieved a sustained complete remission (13-146 months, median 62). CONCLUSION: Sustained long-term remissions can be achieved in patients with early relapse of DLBCL following ASCT in a second or third treatment line, particularly in patients with low- and low-intermediate-risk IPI, following radiotherapy of residual disease after ASCT. Further investigations are required to clarify which patients need an alternative therapy (potentially CAR T­cells or allogeneic transplantation).


Assuntos
Transplante de Células-Tronco Hematopoéticas , Linfoma Difuso de Grandes Células B , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/métodos , Humanos , Linfoma Difuso de Grandes Células B/tratamento farmacológico , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Neoplasia Residual/terapia , Estudos Retrospectivos , Transplante Autólogo
4.
Eur J Haematol ; 109(3): 298-304, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35687019

RESUMO

BACKGROUND: Herpes zoster (HZ) is a frequent complication after autologous stem cell transplantation (ASCT). The option of zoster prophylaxis with an antiviral drug is described in the literature, but there is no consensus on the drug and the dosage. PATIENTS AND METHODS: We analyzed the records of 310 patients treated with ASCT who were controlled regularly regarding HZ inter alia for at least 24 months following ASCT. Since 01/2015 patients received prophylactic low-dose acyclovir (400 mg per day) during the first 12 months following discharge after ASCT (n = 107). RESULTS: Twenty percent of patients without this kind of prophylaxis and 2.8% of patients with prophylaxis developed HZ (p < .001). No patient with this prophylaxis developed HZ in the first year after ASCT, 2.8% of patients in the second year after ASCT. A prognostic factor was the kind of diagnosis: 30% of lymphoma patients and 14% of myeloma patients developed HZ in the first 24 months after ASCT without prophylaxis, but only 6.3% and 0% of patients with prophylaxis, respectively. Neither an increase of HZ cases following prophylaxis nor acyclovir refractory HZ cases were observed. CONCLUSIONS: Zoster prophylaxis with low-dose acyclovir over 12 months after ASCT is effective and well tolerated.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Herpes Zoster , Linfoma , Mieloma Múltiplo , Aciclovir/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Herpes Zoster/diagnóstico , Herpes Zoster/etiologia , Herpes Zoster/prevenção & controle , Herpesvirus Humano 3 , Humanos , Linfoma/complicações , Linfoma/diagnóstico , Linfoma/terapia , Mieloma Múltiplo/complicações , Mieloma Múltiplo/diagnóstico , Mieloma Múltiplo/terapia , Estudos Retrospectivos , Transplante de Células-Tronco/efeitos adversos , Transplante Autólogo/efeitos adversos
5.
Cancer Metastasis Rev ; 39(4): 1143-1157, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32648137

RESUMO

Colorectal cancer is a clinically and molecularly heterogeneous disease. Currently, extended RAS and BRAF mutation testing is obligatory in routine clinical practice before starting any treatment in the metastatic setting. Treatment decision making also includes assessment of the clinical condition of the patient, definition of the treatment goal, and consideration of the primary tumor site. Biological treatment is part of the first-line drug combination unless contraindicated. Mutational status is significantly associated with the outcome of patients and is strongly predictive for anti-EGFR-targeted therapy. The prognosis of RAS mutant CRC is clearly inferior to wild-type cases. RAS remains an elusive target, and specific treatment options are not yet available. Recently, promising results of a direct KRAS G12C inhibitor have been reported; however, further confirmation is needed. The biomarker landscape in mCRC is evolving; new promising markers are awaited with the chance of more precise targeted treatment.


Assuntos
Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Proteínas Proto-Oncogênicas p21(ras)/genética , Quinases raf/genética , Animais , Ensaios Clínicos Fase III como Assunto , Neoplasias Colorretais/enzimologia , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto
6.
Br J Cancer ; 124(4): 721-727, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33235314

RESUMO

BACKGROUND: Patients with carcinoma of unknown primary (CUP) have a dismal prognosis, even when treated with multi-agent chemotherapy. We hypothesised that adding the epidermal growth-factor receptor (EGFR) inhibitor cetuximab to standard first-line chemotherapy with paclitaxel and carboplatin would improve PFS and RR in unfavourable CUP. METHODS: This open-labelled, multicentre Phase 2 study included patients with unfavourable, untreated adeno- or undifferentiated CUP. Patients were randomised to receive either paclitaxel/carboplatin (group A) or paclitaxel/carboplatin plus cetuximab (group B) every 3 weeks for a maximum of 6 cycles followed by cetuximab maintenance in group B. The primary endpoint was PFS in the two groups. Secondary endpoints were RR, toxicity and overall survival (OS). RESULTS: One-hundred-and-fifty patients were randomised (group A = 72, group B = 78). The median PFS and OS for all patients were 3.8 and 8.1 months (95% confidence interval (CI): 2.9-4.8 and 6.8-9.5). There was no significant difference in PFS (3.7 vs 4.6 months, HR 0.98) or OS (8.1 vs 7.4, HR 1.1) between the two treatment groups. Response rate tended to be better for chemotherapy plus cetuximab compared to chemotherapy alone (22% vs 15%). Adverse events grade ≥3 were comparable between the two groups, except for significantly increased skin toxicity in the cetuximab arm. CONCLUSIONS: Cetuximab plus paclitaxel/carboplatin did not improve PFS, OS and RR in metastatic CUP compared to paclitaxel/carboplatin alone. Addition of cetuximab resulted in additional skin toxicity. CLINICAL TRIAL REGISTRATION: The study was registered at clinicaltrials.gov as NCT00894569.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Primárias Desconhecidas/tratamento farmacológico , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carboplatina/administração & dosagem , Carboplatina/efeitos adversos , Cetuximab/administração & dosagem , Cetuximab/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Paclitaxel/administração & dosagem , Paclitaxel/efeitos adversos , Intervalo Livre de Progressão , Taxa de Sobrevida
7.
BMC Cancer ; 21(1): 920, 2021 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-34391399

RESUMO

BACKGROUND: Breast cancer (BC) is the most frequent female cancer and preferentially metastasizes to bone. The transcription factor TGFB-induced factor homeobox 1 (TGIF) is involved in bone metabolism. However, it is not yet known whether TGIF is associated with BC bone metastasis or patient outcome and thus of potential interest. METHODS: TGIF expression was analyzed by immunohistochemistry in 1197 formalin-fixed, paraffin-embedded tissue samples from BC patients treated in the GAIN (German Adjuvant Intergroup Node-Positive) study with two adjuvant dose-dense schedules of chemotherapy with or without bisphosphonate ibandronate. TGIF expression was categorized into negative/low and moderate/strong staining. Endpoints were disease-free survival (DFS), overall survival (OS) and time to primary bone metastasis as first site of relapse (TTPBM). RESULTS: We found associations of higher TGIF protein expression with smaller tumor size (p = 0.015), well differentiated phenotype (p < 0.001) and estrogen receptor (ER)-positive BC (p < 0.001). Patients with higher TGIF expression levels showed a significantly longer disease-free (DFS: HR 0.75 [95%CI 0.59-0.95], log-rank p = 0.019) and overall survival (OS: HR 0.69 [95%CI 0.50-0.94], log-rank p = 0.019), but no association with TTPBM (HR 0.77 [95%CI 0.51-1.16]; p = 0.213). Univariate analysis in molecular subgroups emphasized that elevated TGIF expression was prognostic for both DFS and OS in ER-positive BC patients (DFS: HR 0.68 [95%CI 0.51-0.91]; log-rank p = 0.009, interaction p = 0.130; OS: HR 0.60 [95%CI 0.41-0.88], log-rank p = 0.008, interaction p = 0.107) and in the HER2-negative subgroup (DFS:HR 0.67 [95%CI 0.50-0.88], log-rank p = 0.004, interaction p = 0.034; OS: HR 0.57 [95%CI 0.40-0.81], log-rank p = 0.002, interaction p = 0.015). CONCLUSIONS: Our results suggest that moderate to high TGIF expression is a common feature of breast cancer cells and that this is not associated with bone metastases as first site of relapse. However, a reduced expression is linked to tumor progression, especially in HER2-negative breast cancer. TRIAL REGISTRATION: This clinical trial has been registered with ClinicalTrials.gov ; registration number: NCT00196872 .


Assuntos
Neoplasias da Mama/genética , Expressão Gênica , Proteínas de Homeodomínio/genética , Proteínas Repressoras/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/metabolismo , Neoplasias da Mama/terapia , Feminino , Proteínas de Homeodomínio/metabolismo , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Pessoa de Meia-Idade , Gradação de Tumores , Estadiamento de Neoplasias , Prognóstico , Proteínas Repressoras/metabolismo , Adulto Jovem
8.
Eur J Haematol ; 107(5): 543-552, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34288114

RESUMO

OBJECTIVE: To contribute data on long-term outcome and potential curative impact of ASCT in FL, especially following HDT with the BEAM protocol (BCNU, etoposide, cytarabine and melphalan), given very limited data on this topic in the literature. PATIENTS AND METHODS: Patients with FL (n = 76) were treated in our institution with HDT and ASCT. In the case of long-term remission (≥8 years), peripheral blood was tested for minimal residual disease by t(14;18)- and IGH-PCR, including the last follow-up. RESULTS: 10-year overall survival, progression-free survival, and freedom from progression (FFP) after first-line ASCT (n = 20) were 80%, 60%, and 69%, after second-line ASCT (n = 48, following BEAM) 66%, 38%, and 41%, after third/fourth-line ASCT (n = 8) 33%, 25%, and 25%, respectively. Prognostic factors for FFP were treatment line and FLIPI (Follicular Lymphoma International Prognostic Index). 10-year FFP for second-line ASCT and low-risk FLIPI at relapse was 69%, intermediate-risk 28%, and high-risk 25% (P < .05). 26 patients developed sustained long-term clinical and molecular remissions of up to 27 years. CONCLUSIONS: Sustained long-term clinical and molecular complete remissions up to 27 years can be achieved following ASCT (including HDT with BEAM in second treatment line), indicating a potential curative impact of ASCT in FL.


Assuntos
Antineoplásicos/administração & dosagem , Transplante de Células-Tronco Hematopoéticas/métodos , Adulto , Relação Dose-Resposta a Droga , Feminino , Humanos , Linfoma Folicular/tratamento farmacológico , Linfoma Folicular/terapia , Masculino , Pessoa de Meia-Idade , Transplante Autólogo , Resultado do Tratamento
9.
Haematologica ; 104(5): 955-962, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30514803

RESUMO

Standard first-line therapy of chronic myeloid leukemia is treatment with imatinib. In the randomized German Chronic Myeloid Leukemia-Study IV, more potent BCR-ABL inhibition with 800 mg ('high-dose') imatinib accelerated achievement of a deep molecular remission. However, whether and when a de-escalation of the dose intensity under high-dose imatinib can be safely performed without increasing the risk of losing deep molecular response is unknown. To gain insights into this clinically relevant question, we analyzed the outcome of imatinib dose reductions from 800 mg to 400 mg daily in the Chronic Myeloid Leukemia-Study IV. Of the 422 patients that were randomized to the 800 mg arm, 68 reduced imatinib to 400 mg after they had achieved at least a stable major molecular response. Of these 68 patients, 61 (90%) maintained major molecular remission on imatinib at 400 mg. Five of the seven patients who lost major molecular remission on the imatinib standard dose regained major molecular remission while still on 400 mg imatinib. Only two of 68 patients had to switch to more potent kinase inhibition to regain major molecular remission. Importantly, the lengths of the intervals between imatinib high-dose treatment before and after achieving major molecular remission were associated with the probabilities of maintaining major molecular remission with the standard dose of imatinib. Taken together, the data support the view that a deep molecular remission achieved with high-dose imatinib can be safely maintained with standard dose in most patients. Study protocol registered at clinicaltrials.gov 00055874.


Assuntos
Antineoplásicos/uso terapêutico , Mesilato de Imatinib/uso terapêutico , Leucemia Mielogênica Crônica BCR-ABL Positiva/tratamento farmacológico , Recidiva Local de Neoplasia/tratamento farmacológico , Suspensão de Tratamento/estatística & dados numéricos , Idoso , Relação Dose-Resposta a Droga , Feminino , Seguimentos , Humanos , Leucemia Mielogênica Crônica BCR-ABL Positiva/patologia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Indução de Remissão , Estudos Retrospectivos , Taxa de Sobrevida , Fatores de Tempo , Resultado do Tratamento
10.
Br J Cancer ; 115(10): 1215-1222, 2016 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-27764839

RESUMO

BACKGROUND: To investigate tumour biomarker status and efficacy of first-line panitumumab+FOLFIRI for metastatic colorectal carcinoma (mCRC). METHODS: 154 patients received first-line panitumumab + FOLFIRI every 14 days. Primary end point was objective response rate (ORR). Data were analysed by tumour RAS (KRAS/NRAS) and BRAF status, and baseline amphiregulin (AREG) expression. RESULTS: Objective responses occurred more frequently in RAS wild type (WT) (59%) vs RAS mutant (MT) (41%) mCRC and in RAS WT/BRAF WT (68%) vs RAS or BRAF MT (37%) disease. Median response duration was longer in RAS WT (13.0 months) vs RAS MT (5.8 months) (hazard ratio (HR): 0.16). Median progression-free survival was longer in RAS WT vs MT (11.2 vs 7.3 months; HR, 0.37) and was also longer in RAS WT/BRAF WT vs RAS or BRAF MT (13.2 vs 6.9 months; HR, 0.25). Incidence of adverse events was similar regardless of RAS/BRAF status, and no new safety signals were noted. Among patients with RAS WT tumours, ORR was 67% with high AREG expression and 38% with low AREG expression. CONCLUSIONS: First-line panitumumab+FOLFIRI was associated with favourable efficacy in patients with RAS WT and RAS WT/BRAF WT vs MT mCRC tumours and was well tolerated.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Proteínas Proto-Oncogênicas B-raf/genética , Proteínas ras/genética , Anfirregulina/genética , Anticorpos Monoclonais/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Biomarcadores Tumorais/metabolismo , Camptotecina/administração & dosagem , Camptotecina/análogos & derivados , Ensaios Clínicos Fase II como Assunto , Intervalo Livre de Doença , Fluoruracila/administração & dosagem , Humanos , Estimativa de Kaplan-Meier , Leucovorina/administração & dosagem , Panitumumabe , Modelos de Riscos Proporcionais , Estudos Retrospectivos
11.
Blood ; 123(26): 4027-36, 2014 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-24797300

RESUMO

The outcome of patients with acute myeloid leukemia who are older than 60 years has remained poor because of unfavorable disease characteristics and patient-related factors. The randomized German-Austrian AML Study Group 06-04 protocol was designed on the basis of in vitro synergistic effects of valproic acid (VPA) and all-trans retinoic acid with chemotherapy. Between 2004 and 2006, 186 patients were randomly assigned to receive 2 induction cycles with idarubicin, cytarabine, and all-trans retinoic acid either with VPA or without (STANDARD). In all patients, consolidation therapy was intended. Complete remission rates after induction tended to be lower in VPA compared with STANDARD (40% vs 52%; P = .14) as a result of a higher early death rate (26% vs 14%; P = .06). The main toxicities attributed to VPA were delayed hematologic recovery and grade 3/4 infections, observed predominantly during the second induction cycle. After restricting VPA to the first induction cycle and reducing the dose of idarubicin, these toxicities dropped to rates observed in STANDARD. After a median follow-up time of 84 months, event-free and overall survival were not different between the 2 groups (P = .95 and P = .57, respectively). However, relapse-free-survival was significantly superior in VPA compared with STANDARD (24.4% vs 6.4% at 5 years; P = .02). Explorative subset analyses revealed that AML with mutated Nucleophosmin 1 (NPM1) may particularly benefit from VPA. This trial was registered at www.clinicaltrials.gov as #NCT00151255.


Assuntos
Antineoplásicos/administração & dosagem , Cuidados Críticos/métodos , Inibidores Enzimáticos/administração & dosagem , Leucemia Mieloide Aguda/tratamento farmacológico , Leucemia Mieloide Aguda/mortalidade , Tretinoína/administração & dosagem , Ácido Valproico/administração & dosagem , Idoso , Idoso de 80 Anos ou mais , Citarabina/administração & dosagem , Citarabina/agonistas , Intervalo Livre de Doença , Sinergismo Farmacológico , Feminino , Seguimentos , Humanos , Idarubicina/administração & dosagem , Idarubicina/agonistas , Leucemia Mieloide Aguda/genética , Masculino , Pessoa de Meia-Idade , Mutação , Proteínas Nucleares/genética , Nucleofosmina , Taxa de Sobrevida , Tretinoína/agonistas , Ácido Valproico/agonistas
12.
Haematologica ; 101(7): 839-45, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27036160

RESUMO

Outcome of patients with primary refractory acute myeloid leukemia remains unsatisfactory. We conducted a prospective phase II clinical trial with gemtuzumab ozogamicin (3 mg/m(2) intravenously on day 1), all-trans retinoic acid (45 mg/m(2) orally on days 4-6 and 15 mg/m(2) orally on days 7-28), high-dose cytarabine (3 g/m(2)/12 h intravenously on days 1-3) and mitoxantrone (12 mg/m(2) intravenously on days 2-3) in 93 patients aged 18-60 years refractory to one cycle of induction therapy. Primary end point of the study was response to therapy; secondary end points included evaluation of toxicities, in particular, rate of sinusoidal obstruction syndrome after allogeneic hematopoietic cell transplantation. Complete remission or complete remission with incomplete blood count recovery was achieved in 47 (51%) and partial remission in 10 (11%) patients resulting in an overall response rate of 61.5%; 33 (35.5%) patients had refractory disease and 3 patients (3%) died. Allogeneic hematopoietic cell transplantation was performed in 71 (76%) patients; 6 of the 71 (8.5%) patients developed moderate or severe sinusoidal obstruction syndrome after transplantation. Four-year overall survival rate was 32% (95% confidence interval 24%-43%). Patients responding to salvage therapy and undergoing allogeneic hematopoietic cell transplantation (n=51) had a 4-year survival rate of 49% (95% confidence intervaI 37%-64%). Patients with fms-like tyrosine kinase internal tandem duplication positive acute myeloid leukemia had a poor outcome despite transplantation. In conclusion, the described regimen is an effective and tolerable salvage therapy for patients who are primary refractory to one cycle of conventional intensive induction therapy. (clinicaltrials.gov identifier: 00143975).


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Leucemia Mieloide Aguda/terapia , Adulto , Aminoglicosídeos/administração & dosagem , Anticorpos Monoclonais Humanizados/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Comorbidade , Quimioterapia de Consolidação , Citarabina/administração & dosagem , Feminino , Gemtuzumab , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/métodos , Humanos , Estimativa de Kaplan-Meier , Leucemia Mieloide Aguda/complicações , Leucemia Mieloide Aguda/diagnóstico , Leucemia Mieloide Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Mitoxantrona/administração & dosagem , Indução de Remissão , Terapia de Salvação , Resultado do Tratamento , Tretinoína/administração & dosagem , Adulto Jovem
14.
Ann Hematol ; 95(12): 1931-1942, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27696203

RESUMO

The aim of this clinical trial was to evaluate the impact of all-trans retinoic acid (ATRA) in combination with chemotherapy and to assess the NPM1 status as biomarker for ATRA therapy in younger adult patients (18-60 years) with acute myeloid leukemia (AML). Patients were randomized for intensive chemotherapy with or without open-label ATRA (45 mg/m2, days 6-8; 15 mg/m2, days 9-21). Two cycles of induction therapy were followed by risk-adapted consolidation with high-dose cytarabine or allogeneic hematopoietic cell transplantation. Due to the open label character of the study, analysis was performed on an intention-to-treat (ITT) and a per-protocol (PP) basis. One thousand one hundred patients were randomized (556, STANDARD; 544, ATRA) with 38 patients treated vice versa. Median follow-up for survival was 5.2 years. ITT analyses revealed no difference between ATRA and STANDARD for the total cohort and for the subset of NPM1-mutated AML with respect to event-free (EFS; p = 0.93, p = 0.17) and overall survival (OS; p = 0.24 and p = 0.32, respectively). Pre-specified PP analyses revealed better EFS in NPM1-mutated AML (p = 0.05) and better OS in the total cohort (p = 0.03). Explorative subgroup analyses on an ITT basis revealed better OS (p = 0.05) in ATRA for genetic low-risk patients according to ELN recommendations. The clinical trial is registered at clinicaltrialsregister.eu (EudraCT Number: 2004-004321-95).


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Quimioterapia de Indução/métodos , Leucemia Mieloide Aguda/diagnóstico , Leucemia Mieloide Aguda/tratamento farmacológico , Tretinoína/administração & dosagem , Adolescente , Adulto , Feminino , Seguimentos , Humanos , Quimioterapia de Indução/mortalidade , Leucemia Mieloide Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Nucleofosmina , Taxa de Sobrevida/tendências , Resultado do Tratamento , Adulto Jovem
15.
Blood ; 121(1): 170-7, 2013 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-23115274

RESUMO

In this study, we evaluated the impact of secondary genetic lesions in acute myeloid leukemia (AML) with inv(16)(p13.1q22) or t(16;16)(p13.1;q22); CBFB-MYH11. We studied 176 patients, all enrolled on prospective treatment trials, for secondary chromosomal aberrations and mutations in N-/KRAS, KIT, FLT3, and JAK2 (V617F) genes. Most frequent chromosomal aberrations were trisomy 22 (18%) and trisomy 8 (16%). Overall, 84% of patients harbored at least 1 gene mutation, with RAS being affected in 53% (45% NRAS; 13% KRAS) of the cases, followed by KIT (37%) and FLT3 (17%; FLT3-TKD [14%], FLT3-ITD [5%]). None of the secondary genetic lesions influenced achievement of complete remission. In multivariable analyses, KIT mutation (hazard ratio [HR] = 1.67; P = .04], log(10)(WBC) (HR = 1.33; P = .02), and trisomy 22 (HR = 0.54; P = .08) were relevant factors for relapse-free survival; for overall survival, FLT3 mutation (HR = 2.56; P = .006), trisomy 22 (HR = 0.45; P = .07), trisomy 8 (HR = 2.26; P = .02), age (difference of 10 years, HR = 1.46; P = .01), and therapy-related AML (HR = 2.13; P = .14) revealed as prognostic factors. The adverse effects of KIT and FLT3 mutations were mainly attributed to exon 8 and tyrosine kinase domain mutations, respectively. Our large study emphasizes the impact of both secondary chromosomal aberrations as well as gene mutations for outcome in AML with inv(16)/t (16;16).


Assuntos
Aberrações Cromossômicas , Inversão Cromossômica , Cromossomos Humanos Par 16/genética , Leucemia Mieloide Aguda/genética , Proteínas de Fusão Oncogênica/genética , Adolescente , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Cromossomos Humanos Par 16/ultraestrutura , Cromossomos Humanos Par 22 , Cromossomos Humanos Par 8 , Ensaios Clínicos como Assunto/estatística & dados numéricos , Estudos de Coortes , Feminino , Genes ras , Humanos , Estimativa de Kaplan-Meier , Leucemia Mieloide Aguda/sangue , Leucemia Mieloide Aguda/tratamento farmacológico , Contagem de Leucócitos , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto/estatística & dados numéricos , Mutação , Segunda Neoplasia Primária/genética , Prognóstico , Proteínas Proto-Oncogênicas c-kit/genética , Trissomia , Adulto Jovem , Tirosina Quinase 3 Semelhante a fms/genética
16.
Haematologica ; 100(3): 324-30, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25596267

RESUMO

We studied 1696 patients (18 to 61 years) with acute myeloid leukemia for ASXL1 mutations and identified these mutations in 103 (6.1%) patients. ASXL1 mutations were associated with older age (P<0.0001), male sex (P=0.041), secondary acute myeloid leukemia (P<0.0001), and lower values for bone marrow (P<0.0001) and circulating (P<0.0001) blasts. ASXL1 mutations occurred in all cytogenetic risk-groups; normal karyotype (40%), other intermediate-risk cytogenetics (26%), high-risk (24%) and low-risk (10%) cytogenetics. ASXL1 mutations were associated with RUNX1 (P<0.0001) and IDH2(R140) mutations (P=0.007), whereas there was an inverse correlation with NPM1 (P<0.0001), FLT3-ITD (P=0.0002), and DNMT3A (P=0.02) mutations. Patients with ASXL1 mutations had a lower complete remission rate (56% versus 74%; P=0.0002), and both inferior event-free survival (at 5 years: 15.9% versus 29.0%; P=0.02) and overall survival (at 5 years: 30.3% versus 45.7%; P=0.0004) compared to patients with wildtype ASXL1. In multivariable analyses, ASXL1 and RUNX1 mutation as a single variable did not have a significant impact on prognosis. However, we observed a significant interaction (P=0.04) for these mutations, in that patients with the genotype ASXL1(mutated)/RUNX1(mutated) had a higher risk of death (hazard ratio 1.8) compared to patients without this genotype. ASXL1 mutation, particularly in the context of a coexisting RUNX1 mutation, constitutes a strong adverse prognostic factor in acute myeloid leukemia.


Assuntos
Subunidade alfa 2 de Fator de Ligação ao Core/genética , Leucemia Mieloide Aguda/genética , Proteínas Repressoras/genética , Adolescente , Adulto , Fatores Etários , Idoso , Antineoplásicos/uso terapêutico , Medula Óssea/metabolismo , Medula Óssea/patologia , Subunidade alfa 2 de Fator de Ligação ao Core/metabolismo , DNA (Citosina-5-)-Metiltransferases/genética , DNA (Citosina-5-)-Metiltransferases/metabolismo , DNA Metiltransferase 3A , Feminino , Humanos , Isocitrato Desidrogenase/genética , Isocitrato Desidrogenase/metabolismo , Cariótipo , Leucemia Mieloide Aguda/diagnóstico , Leucemia Mieloide Aguda/tratamento farmacológico , Leucemia Mieloide Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Proteínas Nucleares/genética , Proteínas Nucleares/metabolismo , Nucleofosmina , Prognóstico , Estudos Prospectivos , Proteínas Repressoras/metabolismo , Fatores Sexuais , Análise de Sobrevida , Tirosina Quinase 3 Semelhante a fms/genética , Tirosina Quinase 3 Semelhante a fms/metabolismo
17.
Ann Hematol ; 94(12): 2015-24, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26385387

RESUMO

Major route additional cytogenetic aberrations (ACA) at diagnosis of chronic myeloid leukaemia (CML) indicate an increased risk of progression and shorter survival. Since major route ACA are almost always unbalanced, it is unclear whether other unbalanced ACA at diagnosis also confer an unfavourable prognosis. On the basis of 1348 Philadelphia chromosome-positive chronic phase patients of the randomized CML study IV, we examined the impact of unbalanced minor route ACA at diagnosis versus major route ACA on prognosis. At diagnosis, 1175 patients (87.2 %) had a translocation t(9;22)(q34;q11) and 74 (5.5 %) a variant translocation t(v;22) only, while a loss of the Y chromosome (-Y) was present in addition in 44 (3.3 %), balanced or unbalanced minor route ACA each in 17 (1.3 %) and major route ACA in 21 (1.6 %) cases. Patients with unbalanced minor route ACA had no significantly different cumulative incidences of complete cytogenetic remission or major molecular remission and no significantly different progression-free survival (PFS) or overall survival (OS) than patients with t(9;22), t(v;22), -Y and balanced minor route karyotypes. In contrast, patients with major route ACA had a shorter OS and PFS than all other groups (all pairwise comparisons to each of the other groups: p ≤ 0.015). Five-year survival probabilities were for t(9;22) 91.4 % (95 % CI 89.5-93.1), t(v; 22) 87 % (77.2-94.3), -Y 89.0 % (76.7-97.0), balanced 100 %, unbalanced minor route 92.3 % (72.4-100) and major route 52.2 % (28.2-75.5). We conclude that only major route, but not balanced or unbalanced minor route ACA at diagnosis, has a negative impact on prognosis of CML.


Assuntos
Cariótipo Anormal , Leucemia Mielogênica Crônica BCR-ABL Positiva , Cromossomo Filadélfia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Intervalo Livre de Doença , Feminino , Humanos , Cariotipagem , Leucemia Mielogênica Crônica BCR-ABL Positiva/diagnóstico , Leucemia Mielogênica Crônica BCR-ABL Positiva/genética , Leucemia Mielogênica Crônica BCR-ABL Positiva/mortalidade , Masculino , Pessoa de Meia-Idade , Taxa de Sobrevida
18.
Lancet ; 382(9897): 1021-8, 2013 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-23871490

RESUMO

BACKGROUND: Trastuzumab has established efficacy against breast cancer with overexpression or amplification of the HER2 oncogene. The standard of care is 1 year of adjuvant trastuzumab, but the optimum duration of treatment is unknown. We compared 2 years of treatment with trastuzumab with 1 year of treatment, and updated the comparison of 1 year of trastuzumab versus observation at a median follow-up of 8 years, for patients enrolled in the HERceptin Adjuvant (HERA) trial. METHODS: The HERA trial is an international, multicentre, randomised, open-label, phase 3 trial comparing treatment with trastuzumab for 1 and 2 years with observation after standard neoadjuvant chemotherapy, adjuvant chemotherapy, or both in 5102 patients with HER2-positive early breast cancer. The primary endpoint was disease-free survival. The comparison of 2 years versus 1 year of trastuzumab treatment involved a landmark analysis of 3105 patients who were disease-free 12 months after randomisation to one of the trastuzumab groups, and was planned after observing at least 725 disease-free survival events. The updated intention-to-treat comparison of 1 year trastuzumab treatment versus observation alone in 3399 patients at a median follow-up of 8 years (range 0-10) is also reported. This study is registered with ClinicalTrials.gov, number NCT00045032. FINDINGS: We recorded 367 events of disease-free survival in 1552 patients in the 1 year group and 367 events in 1553 patients in the 2 year group (hazard ratio [HR] 0·99, 95% CI 0·85-1·14, p=0·86). Grade 3-4 adverse events and decreases in left ventricular ejection fraction during treatment were reported more frequently in the 2 year treatment group than in the 1 year group (342 [20·4%] vs 275 [16·3%] grade 3-4 adverse events, and 120 [7·2%] vs 69 [4·1%] decreases in left ventricular ejection fraction, respectively). HRs for a comparison of 1 year of trastuzumab treatment versus observation were 0·76 (95% CI 0·67-0·86, p<0·0001) for disease-free survival and 0·76 (0·65-0·88, p=0·0005) for overall survival, despite crossover of 884 (52%) patients from the observation group to trastuzumab therapy. INTERPRETATION: 2 years of adjuvant trastuzumab is not more effective than is 1 year of treatment for patients with HER2-positive early breast cancer. 1 year of treatment provides a significant disease-free and overall survival benefit compared with observation and remains the standard of care. FUNDING: F Hoffmann-La Roche (Roche).


Assuntos
Anticorpos Monoclonais Humanizados/administração & dosagem , Antineoplásicos/administração & dosagem , Neoplasias da Mama/tratamento farmacológico , Receptor ErbB-2/metabolismo , Adulto , Idoso , Anticorpos Monoclonais Humanizados/efeitos adversos , Antineoplásicos/efeitos adversos , Quimioterapia Adjuvante , Intervalo Livre de Doença , Esquema de Medicação , Feminino , Seguimentos , Humanos , Adesão à Medicação , Pessoa de Meia-Idade , Trastuzumab , Resultado do Tratamento
19.
Blood ; 119(2): 551-8, 2012 Jan 12.
Artigo em Inglês | MEDLINE | ID: mdl-22096250

RESUMO

We aimed to determine the prognostic impact of monosomal karyotype (MK) in acute myeloid leukemia (AML) in the context of the current World Health Organization (WHO) classification and to evaluate the outcome of MK(+) patients after allogeneic HSCT. Of 1058 patients with abnormal cytogenetics, 319 (30%) were MK MK(+). MK(+) patients were significantly older (P = .0001), had lower white blood counts (P = .0006), and lower percentages of BM blasts (P = .0004); MK was associated with the presence of -5/5q-, -7, 7q-, abnl(12p), abnl(17p), -18/18q-, -20/20q-, inv(3)/t(3;3), complex karyotype (CK), and myelodysplasia (MDS)-related cytogenetic abnormalities (P < .0001, each); and NPM1 mutations (P < .0001), FLT3 internal tandem duplications (P < .0001), and tyrosine kinase domain mutations (P = .02) were less frequent in MK(+). Response to induction therapy and overall survival in MK(+) patients were dismal with a complete remission rate of 32.5% and a 4-year survival of 9%. MK retained its prognostic impact in AML with CK, AML with MDS-related cytogenetic abnormalities, and in a revised definition (MK-R) excluding cases with recurrent genetic abnormalities according to WHO classification and those with derivative chromosomes not leading to true monosomies. In younger patients, allogeneic HSCT from matched related and unrelated donors resulted in a limited improvement of overall survival.


Assuntos
Aberrações Cromossômicas , Cariotipagem , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/mortalidade , Monossomia/genética , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Transplante de Células-Tronco Hematopoéticas , Humanos , Leucemia Mieloide Aguda/terapia , Masculino , Pessoa de Meia-Idade , Síndromes Mielodisplásicas/genética , Síndromes Mielodisplásicas/mortalidade , Síndromes Mielodisplásicas/terapia , Nucleofosmina , Estudos Prospectivos , Indução de Remissão , Taxa de Sobrevida , Resultado do Tratamento , Adulto Jovem
20.
Future Oncol ; 10(16): 2643-57, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25531050

RESUMO

The VEGF- (bevacizumab) and EGFR- (cetuximab and panitumumab) targeting monoclonal antibodies have become integral components of the first-line treatment strategies for patients with metastatic colorectal cancer (mCRC). Increasingly combination chemotherapy, with or without a targeted agent, is being used to facilitate curative liver resection and improve survival rates in patients with initially unresectable but potentially resectable mCRC. Currently, the only selective marker for the treatment of patients with mCRC is tumor RAS mutational status. BRAF status is a strong prognostic indicator. Medical and clinical oncologists from Central Asia, Russia, the Middle East, Africa and Turkey reviewed data for the use of targeted agents in the treatment of patients with mCRC and have formed recommendations for the biological of choice first-line for patients with mCRC.


Assuntos
Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Medicina de Precisão , Anticorpos Monoclonais/genética , Anticorpos Monoclonais/uso terapêutico , Anticorpos Monoclonais Humanizados/genética , Anticorpos Monoclonais Humanizados/uso terapêutico , Bevacizumab , Cetuximab , Neoplasias Colorretais/patologia , Receptores ErbB/antagonistas & inibidores , Receptores ErbB/imunologia , Humanos , Metástase Neoplásica , Proteína Oncogênica p21(ras)/genética , Panitumumabe , Proteínas Proto-Oncogênicas B-raf/genética , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Fator A de Crescimento do Endotélio Vascular/imunologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA