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2.
Int J Cancer ; 151(10): 1791-1803, 2022 11 15.
Artículo en Inglés | MEDLINE | ID: mdl-35695283

RESUMEN

Inhibitors of poly(ADP-ribose) polymerase (PARPi) are increasingly employed as salvage therapy in epithelial ovarian cancer (EOC), but cytotoxic drug exposure along with PARP inhibition may favor development of hematological disorders. In our study, of 182 women with EOC treated with PARPi, 16 (8.7%) developed therapy-related myeloid neoplasms (t-MNs), with 12 cases of myelodysplasia and 4 of acute myeloid leukemia. All experienced persistent cytopenia after PARPi discontinuation. Seven patients had del(5q)/-5 and/or del(7q)/-7, nine had a complex karyotype and TP53 mutations, recently reported as risk factor for t-MNs in EOC post-PARPi, were found in 12 out of 13 tested patients. Four patients had a rapid and fatal outcome, one had stable disease, eleven underwent induction therapy, followed by allogeneic hematopoietic cell transplantation in seven. Three of these 11 patients experienced refractory disease, and 8 had complete remission. During a 6.8 months (range 2.3-49) median observation time, 3 out of 16 patients were alive, with one surviving patient free of both solid and hematological tumors. Ten patients died because of leukemia, two because of transplant-related events, one from heart failure. Five more patients experienced persistent cell blood count abnormalities following PARPi discontinuation, without reaching MDS diagnostic criteria. A customized Myelo-panel showed clonal hematopoiesis in all five patients. These findings confirm the actual risk of t-MNs in EOC patients after chemotherapy and prolonged PARPi therapy. The management of these patients is complex and outcomes are extremely poor. Careful diagnostic procedures are strongly recommended whenever unusual cytopenias develop in patients receiving PARPi therapy.


Asunto(s)
Neoplasias Primarias Secundarias , Neoplasias Ováricas , Carcinoma Epitelial de Ovario/tratamiento farmacológico , Análisis Citogenético , Femenino , Humanos , Neoplasias Primarias Secundarias/tratamiento farmacológico , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/genética , Neoplasias Ováricas/patología , Inhibidores de Poli(ADP-Ribosa) Polimerasas/uso terapéutico , Poli(ADP-Ribosa) Polimerasas/uso terapéutico , Terapia Recuperativa
3.
Int J Cancer ; 148(1): 170-177, 2021 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-32856727

RESUMEN

We investigated the occurrence and management of therapy-related hematological disorders (tr-HDs) in women with epithelial ovarian cancer (EOC) exposed to poly-ADP-ribose polymerase inhibitors (PARPi), after previous chemotherapy. We analyzed 130 consecutive EOC patients treated with PARPi at the European Institute of Oncology, Milan. In line with the literature, overall survival of the entire population was 37% at 5.5 years (89% were advanced stages). Cell blood counts were collected prior to start PARPi, at each new cycle and at monthly intervals. Patients displaying persistent and/or marked hematological abnormalities underwent bone marrow evaluation, with cytogenetic and molecular analysis. Nine patients (6,9%) developed tr-HDs, after a median 22.8 months of PARPi exposure. Two patients died early and could not be treated. Two patients have no indication for active treatment and are presently under close hematological monitoring. Five patients underwent chemotherapy followed, in three cases, by allogeneic hematopoietic transplantation: three patients are in complete remission of their hematological and gynecological malignancies at 13, 19, and 25 months; the remaining two patients died due to progression of their hematological disease. We show the potential risk of hematological disorders in EOC patients treated with chemotherapy and prolonged PARPi therapy. In our series, tr-HDs incidence was higher compared to recent reports in large series. Our observations suggest careful monitoring in order to conclusively define, on large series and prolonged follow-up, the actual risk of tr-HDs in patients under PARPi. Notably, prompt diagnosis of hematological abnormalities and appropriate management allow achievement of remission from severe hematological complications, at least in most patients.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carcinoma Epitelial de Ovario/tratamiento farmacológico , Enfermedades Hematológicas/diagnóstico , Neoplasias Ováricas/tratamiento farmacológico , Inhibidores de Poli(ADP-Ribosa) Polimerasas/efectos adversos , Adulto , Anciano , Recuento de Células Sanguíneas , Médula Ósea/patología , Carcinoma Epitelial de Ovario/mortalidad , Femenino , Enfermedades Hematológicas/inducido químicamente , Enfermedades Hematológicas/epidemiología , Enfermedades Hematológicas/terapia , Trasplante de Células Madre Hematopoyéticas , Humanos , Incidencia , Persona de Mediana Edad , Neoplasias Ováricas/mortalidad , Estudios Retrospectivos , Trasplante Homólogo
4.
Br J Haematol ; 188(6): 907-917, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31898319

RESUMEN

Bortezomib- and lenalidomide-containing regimens are well-established therapies in multiple myeloma (MM). However, despite their extensive use, head-to-head comparisons have never been performed. Therefore, we compared bortezomib and lenalidomide in fixed-duration therapies. In this open-label, phase III study, we randomized MM patients at first relapse to receive either nine cycles of bortezomib plus cyclophosphamide plus dexamethasone (VCD) or lenalidomide plus cyclophosphamide plus dexamethasone (RCD). The primary endpoint was achievement of a very good partial response (VGPR) or better at six weeks after nine treatment cycles. From March 2011 to February 2015, 155 patients were randomized. VGPR or better was achieved by 12 patients (15%) in the VCD arm and 14 patients (18%) in the RCD arm (P = 0·70). Median progression-free survival (PFS) was 16·3 (95% CI: 12·1-22·4) with VCD and 18·6 months (95% CI: 14·7-25·5) with RCD, and the two-year overall survival (OS) was 75% (95% CI: 66-86%) and 74% (95% CI: 64-85%) respectively. In subgroup analyses, no differences in PFS were observed in bortezomib- and lenalidomide-naïve patients, nor in patients who received a bortezomib-based regimen in first line. Adverse events were consistent with the well-established safety profiles of both drugs. Bortezomib and lenalidomide treatments were equally effective in terms of depth of response, PFS, and OS in MM patients at first relapse.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Bortezomib/uso terapéutico , Ciclofosfamida/uso terapéutico , Dexametasona/uso terapéutico , Lenalidomida/uso terapéutico , Mieloma Múltiple/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/farmacología , Bortezomib/farmacología , Ciclofosfamida/farmacología , Dexametasona/farmacología , Femenino , Humanos , Lenalidomida/farmacología , Masculino , Persona de Mediana Edad , Recurrencia , Resultado del Tratamiento
5.
Hematol Oncol ; 36(1): 299-306, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28771763

RESUMEN

Adverse drug reactions (ADRs) reduce patients' quality of life, increase mortality and morbidity, and have a negative economic impact on healthcare systems. Nevertheless, the importance of ADR reporting is often underestimated. The project "FarmaREL" has been developed to monitor and evaluate ADRs in haematological patients and to increase pharmacovigilance culture among haematology specialists. In 13 haematology units, based in Lombardy, Italy, a dedicated specialist with the task of encouraging ADRs reporting and sensitizing healthcare professionals to pharmacovigilance has been assigned. The ADRs occurring in haematological patients were collected electronically and then analysed with multiple logistic regression. Between January 2009 and December 2011, 887 reports were collected. The number of ADRs was higher in older adults (528; 59%), in male (490; 55%), and in non-Hodgkin lymphoma patients (343; 39%). Most reactions were severe (45% required or prolonged hospitalization), but in most cases, they were fully resolved at the time of reporting. According to Schumock and Thornton criteria, a percentage of ADRs as high as 7% was found to be preventable versus 2% according to reporter opinion. Patients' haematological diagnosis, not age or gender, resulted to be the variable that most influenced ADR, in particular severity and outcome. The employment of personnel specifically dedicated to pharmacovigilance is a successful strategy to improve the number and quality of ADR reports. "FarmaREL", the first programme of active pharmacovigilance in oncohaematologic patients, significantly contributed to reach the WHO "Gold Standard" for pharmacovigilance in Lombardy, Italy.


Asunto(s)
Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/diagnóstico , Neoplasias Hematológicas/complicaciones , Farmacovigilancia , Calidad de Vida/psicología , Anciano , Femenino , Humanos , Italia , Masculino , Persona de Mediana Edad
6.
Hematol Oncol ; 34(4): 177-183, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26152851

RESUMEN

Primary lymphoma of the lung is a rare entity. Clinical features, optimal treatment, role of surgery and outcomes are not well defined, and the follow-up is variable in published data. Clinical data of 205 patients who were confirmed to have bronchus mucosa-associated lymphoid tissue lymphoma from December 1986 to December 2011 in 17 different centres worldwide were evaluated. Fifty-five per cent of the patients were female. The median age at diagnosis was 62 (range 28-88) years. Only 9% had a history of exposure to toxic substances, while about 45% of the patients had a history of smoking. Ten per cent of the patients had autoimmune disease at presentation, and 19% patients had a reported preexisting lung disease. Treatment modalities included surgery alone in 63 patients (30%), radiotherapy in 3 (2%), antibiotics in 1 (1%) and systemic treatment in 128 (62%). Patients receiving a local approach, mainly surgical resection, experienced significantly improved progression-free survival (p = 0.003) versus those receiving a systemic treatment. There were no other significant differences among treatment modalities. The survival data confirm the indolent nature of the disease. Local therapy (surgery or radiotherapy) results in long-term disease-free survival for patients with localized disease. Systemic treatment, including alkylating-containing regimens, can be reserved to patients in relapse after incomplete surgical excision or for patients with advanced disease. Copyright © 2015 John Wiley & Sons, Ltd.


Asunto(s)
Neoplasias Pulmonares/mortalidad , Neoplasias Pulmonares/terapia , Linfoma de Células B de la Zona Marginal/mortalidad , Linfoma de Células B de la Zona Marginal/terapia , Adulto , Anciano , Anciano de 80 o más Años , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia
7.
Artículo en Inglés | MEDLINE | ID: mdl-36900841

RESUMEN

The present study aims at defining the economic and organizational impacts of the introduction of chimeric antigen receptor T-cell therapy (CAR-T) in Italy, for the management of diffuse large B-cell lymphoma (DLBCL) patients in third-line therapy, defining the overall level of sustainability for both hospitals and the National Healthcare System (NHS). The analysis focused on CAR-T and Best Salvage Care (in the following BSC), assuming the Italian hospital and NHS perspectives, over a 36-month time horizon. Process mapping and activity-based costing methodologies were applied to collect the hospital costs related to the BSC and CAR-T pathways, including adverse event management. Anonymous administrative data on services provided (diagnostic and laboratory examinations, hospitalizations, outpatient procedures, and therapies) to 47 third-line patients with lymphoma, as well as any organizational investments required, were collected, in two different Italian Hospitals. The economic results showed that the BSC clinical pathway required less resources in comparison with CAR-T (excluding the cost related to the therapy) (BSC: 29,558.41 vs. CAR-T: EUR 71,220.84, -58.5%). The budget impact analysis depicts that the introduction of CAR-T would generate an increase in costs ranging from 15% to 23%, without considering treatment costs. The assessment of the organizational impact reveals that the introduction of CAR-T therapy would require additional investments equal to a minimum of EUR 15,500 to a maximum of EUR 100,897.49, from the hospital perspective. Results show new economic evidence for healthcare decision makers, to optimize the appropriateness of resource allocation. The present analysis suggests the need to introduce a specific reimbursement tariff, both at the hospital and at NHS levels, since no consensus exists, at least in the Italian setting, concerning the proper remuneration for the hospitals who guarantee this innovative pathway, assuming high risks related to timely management of adverse events.


Asunto(s)
Receptores Quiméricos de Antígenos , Humanos , Hospitalización , Costos de la Atención en Salud , Atención a la Salud , Hospitales
8.
Mediterr J Hematol Infect Dis ; 13(1): e2021018, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33747399

RESUMEN

Host immune homeostasis as an independent prognostic indicator has been inadequately evaluated in aggressive non-Hodgkin's lymphomas (NHL). The present study addresses the prognostic significance in aggressive NHLs of the immunologic profile evaluated by pretreatment serum levels of immunoglobulins (Ig) and lymphocyte-monocyte ratio (LMR). In this series of 90 patients with aggressive lymphoma, the median level for IgG was 1,024mg/dl (range 436-2236), and for LMR was 2.2 (range 0.2-13.8). CR rate was higher with IgG levels ≥1,024mg/dL (91% vs 77% p=0.059). LMR ≤ 2.2 was associated with lower 1-year PFS (73% vs. 92%, p 0.016). Patients with good/very good R-IPI showed a reduced PFS if IgG or LMR was low, while patients with poor R-IPI did better if LMR or IgG levels were high. We combined both parameters with the R-IPI and produced a four-risk prognostic score showing one-year PFS of 95% (95% CI 68%-99%), 100% (95% CI 100%-100%), 73% (95% CI 52%-86%), and 59% (95% CI 31%-79%), in patients with zero, one, two and three risk factors, respectively. The results indicate for the first time the value of baseline serum Ig levels in the prognostic assessment of aggressive lymphoma.

9.
Transplant Cell Ther ; 27(12): 999.e1-999.e10, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34543768

RESUMEN

Graft-versus-host disease (GVHD) remains among the major causes of treatment failure in patients with multiple myeloma (MM) undergoing allogeneic hematopoietic cell transplantation (allo-HCT). The use of post-transplantation cyclophosphamide (PT-Cy) is now a well-established and widely used method for GVHD prophylaxis after HLA haploidentical HCT. However, the rationale for using PT-Cy in the setting of matched donor transplantation is less apparent, given the lesser degree of bidirectional alloreactivity. In this retrospective study, we investigated the role of PT-Cy as GVHD prophylaxis in patients with multiple myeloma underoing allo-HCT, among different donor types, to determine cumulative incidence of acute and chronic GVHD and impact on engraftment, progression-free survival (PFS), GVHD-free/relapse- free survival (GRFS), overall survival (OS), and NRM A total of 295 patients with MM underwent allo-HCT using grafts from a matched related donor (MRD; n = 67), matched unrelated donor (MUD; n = 72), mismatched related or unrelated donor (MMRD/MMUD, 1 antigen; n = 27), or haploidentical donor (haplo; n = 129) using PT-Cy between 2012 and 2018. In addition to PT-Cy, agents used in GVHD prophylaxis included calcineurin inhibitors in 239 patients (81%), with mycophenolate mofetil in 184 of those 239 (77%). For grade II-IV acute GVHD, the cumulative incidence at day +100 was 30% (95% confidence interval [CI], 25% to 36%), 9% (95% CI, 5% to 12%) for grade III-IV acute GVHD, and 27% (95% CI, 21% to 32%) for chronic GVHD (limited, 21%; extensive, 6%), with no differences by donor type. The median time to neutrophil engraftment was 19d (95% CI, 18-19), with no significant difference by donor type. The median time to platelet engraftment was delayed in haploidentical donor graft recipients (27 days versus 21 days; P < .001). Two-year OS, PFS, GRFS, and NRM were 51% (95% CI, 45% to 58%), 26% (95% CI, 20% to 32%), 24% (95% CI, 18% to 30%), and 19% (95% CI, 14% to 24%), respectively, with no significant difference between different donor types. In multivariable analyses, compared with the haplo donors, the use of MRDs was associated with significantly better OS (hazard ratio [HR], 0.6; 95% CI, 0.38 to 0.95; P = .029), and the use of MUDs was associated with a significantly higher GRFS (HR, 0.63; 95% CI, 0.42 to 0.97; P = .034). There was a trend toward improved PFS with use of MUDs (HR, 0.69; 95% CI, 0.46 to 1.04; P = .08). Our data show that PT-Cy in MM patients undergoing allo-HCT resulted in low rates of acute and chronic GVHD and led to favorable survival, especially in the matched related donor setting. © 2021 American Society for Transplantation and Cellular Therapy. Published by Elsevier Inc.


Asunto(s)
Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Mieloma Múltiple , Médula Ósea , Ciclofosfamida/uso terapéutico , Enfermedad Injerto contra Huésped/prevención & control , Humanos , Mieloma Múltiple/terapia , Recurrencia Local de Neoplasia , Estudios Retrospectivos , Estados Unidos , Donante no Emparentado
10.
Transfus Apher Sci ; 43(3): 321-326, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21036667

RESUMEN

Pegfilgrastim has equivalent efficacy to daily G-CSF in enhancing neutrophil recovery after chemotherapy, but conclusive data concerning its use for peripheral blood stem cell (PBSC) mobilization are lacking. From 2003 to 2008 we used high-dose chemotherapy in 64 lymphoma patients. At mobilization chemotherapy (ESHAP) the first 26 patients used unconjugated G-CSF, while the remaining 38 patients received Pegfilgrastim. At the time of harvest 25 patients collected stem cells after the use of G-CSF and 36 in the Peg group. No statistical by significant differences were observed in median peripheral CD34+ cells mobilized (77 µL versus 71 µL) and in collected PBSC (12.3 × 10(6)/kg versus 9.4 × 10(6)/kg p = 0.76). In the PEG group all patients collected the target PBSC with a single apheresis with a greater proportion of "optimal" mobilizers (83% versus 64%; p = 0.05). In conclusion a single dose of Pegfilgrastim could be a valid alternative to unconjugated G-CSF to mobilize PBSC in lymphoma patients.


Asunto(s)
Supervivencia de Injerto , Factor Estimulante de Colonias de Granulocitos/administración & dosificación , Movilización de Célula Madre Hematopoyética/métodos , Linfoma/terapia , Trasplante de Células Madre de Sangre Periférica/métodos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Filgrastim , Humanos , Polietilenglicoles , Proteínas Recombinantes , Trasplante Autólogo
11.
Clin Lymphoma Myeloma ; 7(3): 239-41, 2006 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17229342

RESUMEN

We report the case of a patient who presented with painful nodular subcutaneous lesions on the lower limbs and episodes of high temperature (> 39.5 degrees C). Histologic examination and immunohistochemical study of a biopsy specimen from a nodular lesion were consistent with the diagnosis of subcutaneous panniculitis-like T-cell lymphoma, a rare form of non-Hodgkin lymphoma. Diagnosis is made particularly difficult, especially in the early stages, by nonspecific clinical features shared by many types of panniculitis. Therefore, it seems advisable to consider the possibility of this type of lymphoma in all cases of panniculitis and to perform careful and continuous follow-up of all cases in which a clear diagnosis is not formulated at the outset, with regular repetition of skin biopsies at appropriate intervals.


Asunto(s)
Eritema Nudoso/diagnóstico , Linfoma/diagnóstico , Paniculitis/diagnóstico , Neoplasias Cutáneas/diagnóstico , Adulto , Biopsia , Eritema Nudoso/terapia , Femenino , Humanos , Inmunohistoquímica , Linfoma/terapia , Linfoma no Hodgkin/diagnóstico , Linfoma no Hodgkin/terapia , Paniculitis/terapia , Fagocitosis , Pronóstico , Neoplasias Cutáneas/terapia
13.
Leuk Lymphoma ; 46(12): 1837-8, 2005 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-16263590

RESUMEN

Thalidomide represents a recent and innovative therapeutic approach in multiple myeloma. Main toxicity usually consists in somnolence, constipation, peripheral neuropathy and deep vein thrombosis, but, unlike alkylating agents, thalidomide is reported to rarely induce severe hematologic toxicity. The majority of patients developing neutropenia are heavily pretreated with three or more lines of chemotherapy. Here, we report, for the first time, clinical and laboratory data of a 66-year-old female patient with multiple myeloma at diagnosis who, after 4 weeks of thalidomide treatment, developed a grade 4 WHO neutropenia with septicemia. A brief review of the literature and suggestions for possible predictive factors of this toxicity are made.


Asunto(s)
Agranulocitosis/inducido químicamente , Mieloma Múltiple/tratamiento farmacológico , Talidomida/efectos adversos , Anciano , Antineoplásicos/efectos adversos , Femenino , Humanos , Recuento de Leucocitos , Mieloma Múltiple/sangre , Resultado del Tratamiento
15.
Sci Rep ; 5: 14829, 2015 Oct 06.
Artículo en Inglés | MEDLINE | ID: mdl-26439403

RESUMEN

Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm underlain by the formation of BCR-ABL1 - an aberrant tyrosine kinase - in the leukaemic blasts. Long-term survival rates in CML prior to the advent of tyrosine kinase inhibitors (TKIs) were dismal, albeit the incidence of secondary malignancies was higher than that of age-matched population. Current figures confirm the safety of TKIs with conflicting data concerning the increased risk of secondary tumours. We postulate that care has to be taken when distinguishing between coexisting, secondary-to-treatment and second in sequence, but independent tumourigenic events, in order to achieve an unbiased picture of the adverse effects of novel treatments. To illustrate this point, we present a case of a patient in which CML and peripheral T-cell lymphoma (PTCL) coexisted, although the clinical presentation of the latter followed the achievement of major molecular response of CML to TKIs.


Asunto(s)
Leucemia Mielógena Crónica BCR-ABL Positiva/patología , Linfoma de Células T Periférico/patología , Antineoplásicos/uso terapéutico , Proteínas de Fusión bcr-abl/sangre , Proteínas de Fusión bcr-abl/genética , Humanos , Mesilato de Imatinib/uso terapéutico , Hibridación Fluorescente in Situ , Leucemia Mielógena Crónica BCR-ABL Positiva/tratamiento farmacológico , Leucemia Mielógena Crónica BCR-ABL Positiva/genética , Linfoma de Células T Periférico/genética , Masculino , Persona de Mediana Edad , Inhibidores de Proteínas Quinasas/uso terapéutico
17.
Leuk Lymphoma ; 52(7): 1262-70, 2011 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-21534872

RESUMEN

Evidence of long-term response to lenalidomide in heavily pretreated patients with multiple myeloma is lacking. This study sought to assess whether long-term responders exist, long-term responders' characteristics, and predictive factors of a long-term response. One hundred and four patients with multiple myeloma treated with lenalidomide and dexamethasone after ≥2 therapy lines (median, 3) were analyzed. Long-term response was defined as at least a partial response (≥PR) lasting ≥12 months. The overall response rate was 73%, and 80.3% of the responses were achieved within 5 months. The median response was 14.3 months. Patients evaluable for long-term response numbered 87, and a total of 47% were long-term responders. Compared to non-long-term responders, long-term responders had better overall survival, less light-chain multiple myeloma, and higher incidence of t(11;14). Previous allogeneic transplant (alloSCT) and the response quality predicted a long-term response. In conclusion, patients treated with lenalidomide can become long-term responders; alloSCT and response quality predict long-term response.


Asunto(s)
Antineoplásicos/uso terapéutico , Mieloma Múltiple/terapia , Trasplante de Células Madre , Talidomida/análogos & derivados , Adulto , Anciano , Anciano de 80 o más Años , Citogenética , Dexametasona/administración & dosificación , Dexametasona/uso terapéutico , Humanos , Isotipos de Inmunoglobulinas/inmunología , Lenalidomida , Persona de Mediana Edad , Mieloma Múltiple/tratamiento farmacológico , Mieloma Múltiple/inmunología , Mieloma Múltiple/mortalidad , Recurrencia , Análisis de Supervivencia , Talidomida/uso terapéutico , Factores de Tiempo , Trasplante Homólogo , Resultado del Tratamiento
19.
Leuk Lymphoma ; 51(8): 1485-93, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20578816

RESUMEN

The aim of this study was to investigate the efficacy of combined treatment with rituximab and subcutaneous cladribine in patients with newly diagnosed and relapsed chronic lymphocytic leukemia (CLL). Forty-three patients with active CLL or small lymphocytic lymphoma received rituximab 375 mg/m(2) on day 1 and cladribine 0.1 mg/kg subcutaneously on days 2-6. The treatment was repeated every 4 weeks for a total of four cycles. Sixteen patients were pretreated. The overall response rate was 88% (50% complete remission and 38% partial remission). The median time to treatment failure was 37.9 months. Grade 4 neutropenia developed in 5% of patients. The data indicate that combination therapy with rituximab and cladribine is a valuable and safe treatment for patients with CLL.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Leucemia Linfocítica Crónica de Células B/tratamiento farmacológico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Terapia Recuperativa , Anticuerpos Monoclonales/administración & dosificación , Anticuerpos Monoclonales de Origen Murino , Estudios de Casos y Controles , Cladribina/administración & dosificación , Tranportador Equilibrativo 1 de Nucleósido/genética , Femenino , Citometría de Flujo , Humanos , Hibridación Fluorescente in Situ , Infusiones Subcutáneas , Leucemia Linfocítica Crónica de Células B/diagnóstico , Leucemia Linfocítica Crónica de Células B/genética , Masculino , Proteínas de Transporte de Membrana/genética , Persona de Mediana Edad , Recurrencia Local de Neoplasia/diagnóstico , Recurrencia Local de Neoplasia/genética , ARN Mensajero/genética , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Rituximab , Tasa de Supervivencia , Resultado del Tratamiento
20.
Hematology ; 11(4): 239-44, 2006 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17178662

RESUMEN

We evaluated the significance of lactate dehydrogenase (LDH) isoenzymes in chronic myeloproliferative disorders (CMDs) by studying LDH isoenzymes in the serum of patients with secondary polycythemia (SP), polycythemia vera (PV), essential thrombocythemia (ET) and idiopathic myelofibrosis (IMF) in different disease status. LDH activity and isoenzymes were evaluated retrospectively in serum samples from four groups of patients and compared with a control group. LDH activity and isoenzyme distributions of patients with SP and PV did not reveal significant variations with respect to controls. In the ET and IMF group LDH isoenzyme revealed significant variations: IMF showed significant increase of LDH2 and significant reduction of LDH5 isoenzyme, whereas ET showed significant decrease in LDH1 and increase of LDH3. These data suggest that LDH isoenzyme patterns may be a useful marker of CMDs, but this enzymatic pattern could be expression of a metabolic adaptation.


Asunto(s)
L-Lactato Deshidrogenasa/sangre , Trastornos Mieloproliferativos/enzimología , Adaptación Fisiológica , Anciano , Biomarcadores , Pruebas Enzimáticas Clínicas , Progresión de la Enfermedad , Femenino , Humanos , Isoenzimas/sangre , Lactato Deshidrogenasa 5 , Masculino , Persona de Mediana Edad , Trastornos Mieloproliferativos/diagnóstico , Cromosoma Filadelfia , Policitemia/sangre , Policitemia Vera/enzimología , Valor Predictivo de las Pruebas , Mielofibrosis Primaria/enzimología , Estudios Retrospectivos , Trombocitemia Esencial/enzimología
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