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1.
Ann Hematol ; 103(2): 437-442, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38060001

RESUMEN

In patients with low-risk polycythemia vera, exposure to low-dose Ropeginterferon alfa-2b (Ropeg) 100 µg every 2 weeks for 2 years was more effective than the standard treatment of therapeutic phlebotomy in maintaining target hematocrit (HCT) (< 45%) with a reduction in the need for phlebotomy without disease progression. In the present paper, we analyzed drug survival, defined as a surrogate measure of the efficacy, safety, adherence, and tolerability of Ropeg in patients followed up to 5 years. During the first 2 years, Ropeg and phlebotomy-only (Phl-O) were discontinued in 33% and 70% of patients, respectively, for lack of response (12 in the Ropeg arm vs. 34 in the Phl-O arm) or adverse events (6 vs. 0) and withdrawal of consent in (3 vs. 10). Thirty-six Ropeg responders continued the drug for up to 3 years, and the probability of drug survival after a median of 3.15 years was 59%. Notably, the primary composite endpoint was maintained in 97%, 94%, and 94% of patients still on drug at 3, 4, and 5 years, respectively, and 60% of cases were phlebotomy-free. Twenty-three of 63 Phl-O patients (37%) failed the primary endpoint and were crossed over to Ropeg; among the risk factors for this failure, the need for more than three bloodletting procedures in the first 6 months emerged as the most important determinant. In conclusion, to improve the effectiveness of Ropeg, we suggest increasing the dose and using it earlier driven by high phlebotomy need in the first 6 months post-diagnosis.


Asunto(s)
Policitemia Vera , Humanos , Policitemia Vera/tratamiento farmacológico , Policitemia Vera/diagnóstico , Hematócrito , Factores de Riesgo , Flebotomía , Venodisección
2.
Am J Hematol ; 2024 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-38877813

RESUMEN

Patients with essential thrombocythemia (ET) are treated with once-daily low-dose aspirin to prevent thrombosis, but their accelerated platelet turnover shortens the antiplatelet effect. The short-term Aspirin Regimens in EsSential Thrombocythemia trial showed that twice-daily aspirin dosing restores persistent platelet thromboxane (TX) inhibition. However, the long-term pharmacodynamic efficacy, safety and tolerability of twice-daily aspirin remain untested. We performed a multicenter, randomized, open-label, blinded-endpoint, phase-2 trial in which 242 patients with ET were randomized to 100 mg aspirin twice- or once-daily and followed for 20 months. The primary endpoint was the persistence of low serum TXB2, a surrogate biomarker of antithrombotic efficacy. Secondary endpoints were major and clinically relevant non-major bleedings, serious vascular events, symptom burden assessed by validated questionnaires, and in vivo platelet activation. Serum TXB2 was consistently lower in the twice-daily versus once-daily regimen on 10 study visits over 20 months: median 3.9 ng/mL versus 19.2 ng/mL, respectively; p < .001; 80% median reduction; 95% CI, 74%-85%. No major bleeding occurred. Clinically relevant non-major bleedings were non-significantly higher (6.6% vs. 1.7%), and major thromboses lower (0.8% vs. 2.5%) in the twice-daily versus once-daily group. Patients on the twice-daily regimen had significantly lower frequencies of disease-specific symptoms and severe hand and foot microvascular pain. Upper gastrointestinal pain was comparable in the two arms. In vivo platelet activation was significantly reduced by the twice-daily regimen. In patients with ET, twice-daily was persistently superior to once-daily low-dose aspirin in suppressing thromboxane biosynthesis and reducing symptom burden, with no detectable excess of bleeding and gastrointestinal discomfort.

3.
Heart Fail Rev ; 28(2): 359-365, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36451061

RESUMEN

The prevalence of cardiac amyloidosis has progressively increased over the last years, being recognized as a significant cause of heart failure. In fact, the management of advanced heart failure is a cornerstone treatment of amyloid cardiomyopathy due to the frequent delay in its diagnosis. Left ventricular assist devices (LVADs) have been gaining importance in the scenario of end-stage heart failure, representing an alternative to heart transplant. However, only few studies have investigated the role of LVAD in restrictive cardiomyopathies such as cardiac amyloidosis, since there are several problems to consider. In fact, both anatomical factors and the restrictive physiology of this condition make LVAD implant a relevant challenge in this subset of patients. Furthermore, due to the systemic involvement of amyloidosis, several factors have to be considered after LVAD implant, such as an increased risk of bleeding and right ventricular failure. This review attempts to summarize the current evidence of LVAD in cardiac amyloidosis, especially focusing on the challenges that this cardiomyopathy imposes both to the implant and to its management thereafter.


Asunto(s)
Amiloidosis , Cardiomiopatías , Insuficiencia Cardíaca , Trasplante de Corazón , Corazón Auxiliar , Humanos , Corazón Auxiliar/efectos adversos , Trasplante de Corazón/efectos adversos , Cardiomiopatías/complicaciones , Amiloidosis/complicaciones
4.
Blood ; 138(7): 571-583, 2021 08 19.
Artículo en Inglés | MEDLINE | ID: mdl-33889952

RESUMEN

The efficacy and safety of thrombopoietin receptor agonists (TRAs) in older patients with primary immune thrombocytopenia (ITP) are unknown. We investigated TRA response and switch, thrombotic/hemorrhagic risk, and sustained responses off-treatment (SROTs) in 384 patients with ITP aged ≥60 years. After 3 months, 82.5% and 74.3% of eltrombopag- and romiplostim-treated patients, respectively, achieved a response; 66.7% maintained the response (median follow-up, 2.7 years). Eighty-five (22.2%) patients switched to the alternative TRA; although no cross-toxicity was observed, 83.3% of resistant patients had a response after the switch. Thirty-four major thromboses (3 fatal) and 14 major hemorrhages (none fatal) occurred in 18 and 10 patients, respectively, while on TRAs and were associated with thrombosis history (subdistribution hazard ratio, 2.04, P = .05) and platelet count <20 × 109/L (subdistribution hazard ratio, 1.69; P = .04), respectively, at TRA start. A recurrent event occurred in 15.6% of patients surviving thrombosis, in all cases but 1 during persisting TRA treatment (incidence rate, 7.7 per 100 patient-years). All recurrences occurred in the absence of adequate antithrombotic secondary prophylaxis. Sixty-two (16.5%) responding patients discontinued TRAs; 53 (13.8%) patients maintained SROTs, which were associated with TRA discontinuation in complete response (P < .001). Very old age (≥75 years; 41.1%) was associated with the more frequent start of TRAs in the persistent/acute phase but not with response or thrombotic/hemorrhagic risk. TRAs are effective in older patients with ITP, with no fatal hemorrhages and with SROTs in a significant portion of patients. Caution is warranted in patients with a history of thrombosis, and a careful risk/benefit balance should be considered.


Asunto(s)
Benzoatos , Hidrazinas , Púrpura Trombocitopénica Idiopática , Pirazoles , Receptores Fc , Receptores de Trombopoyetina/antagonistas & inhibidores , Proteínas Recombinantes de Fusión , Trombopoyetina , Trombosis , Anciano , Anciano de 80 o más Años , Benzoatos/administración & dosificación , Benzoatos/efectos adversos , Femenino , Estudios de Seguimiento , Hemorragia/inducido químicamente , Hemorragia/epidemiología , Humanos , Hidrazinas/administración & dosificación , Hidrazinas/efectos adversos , Masculino , Persona de Mediana Edad , Púrpura Trombocitopénica Idiopática/tratamiento farmacológico , Púrpura Trombocitopénica Idiopática/mortalidad , Pirazoles/administración & dosificación , Pirazoles/efectos adversos , Receptores Fc/administración & dosificación , Proteínas Recombinantes de Fusión/administración & dosificación , Proteínas Recombinantes de Fusión/efectos adversos , Estudios Retrospectivos , Trombopoyetina/administración & dosificación , Trombopoyetina/efectos adversos , Trombosis/inducido químicamente , Trombosis/mortalidad
5.
Br J Haematol ; 198(5): 916-922, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35701886

RESUMEN

Thrombopoietin receptor agonists (TPO-RA) are a valid therapy for immune thrombocytopenia (ITP), due to megakaryocyte stimulation and (poorly characterised) immune-modulatory effects. The spleen is pivotal in the pathogenesis of ITP, yet little is known on its immune microenvironment and on effects of TPO-RA on this organ. To address these topics, we analysed 35 spleens removed for primary refractory ITP. Pre-splenectomy TPO-RA administration correlated with increased splenic regulatory T cells (Tregs), type 2 T-helper cells and histiocyte density and with reduced red pulp sinusoids. Surgical outcome was not associated with TPO-RA administration, other pre-splenectomy therapies and/or Treg density. In conclusion, TPO-RA affect the splenic microenvironment, but this has no impact on splenectomy outcome.


Asunto(s)
Púrpura Trombocitopénica Idiopática , Trombocitopenia , Humanos , Púrpura Trombocitopénica Idiopática/etiología , Receptores Fc , Receptores de Trombopoyetina/agonistas , Proteínas Recombinantes de Fusión , Bazo/patología , Linfocitos T Reguladores/patología , Trombocitopenia/complicaciones , Trombopoyetina/farmacología , Trombopoyetina/uso terapéutico
6.
Blood ; 136(2): 171-182, 2020 07 09.
Artículo en Inglés | MEDLINE | ID: mdl-32266380

RESUMEN

Essential thrombocythemia (ET) is characterized by abnormal megakaryopoiesis and enhanced thrombotic risk. Once-daily low-dose aspirin is the recommended antithrombotic regimen, but accelerated platelet generation may reduce the duration of platelet cyclooxygenase-1 (COX-1) inhibition. We performed a multicenter double-blind trial to investigate the efficacy of 3 aspirin regimens in optimizing platelet COX-1 inhibition while preserving COX-2-dependent vascular thromboresistance. Patients on chronic once-daily low-dose aspirin (n = 245) were randomized (1:1:1) to receive 100 mg of aspirin 1, 2, or 3 times daily for 2 weeks. Serum thromboxane B2 (sTXB2), a validated biomarker of platelet COX-1 activity, and urinary prostacyclin metabolite (PGIM) excretion were measured at randomization and after 2 weeks, as primary surrogate end points of efficacy and safety, respectively. Urinary TX metabolite (TXM) excretion, gastrointestinal tolerance, and ET-related symptoms were also investigated. Evaluable patients assigned to the twice-daily and thrice-daily regimens showed substantially reduced interindividual variability and lower median (interquartile range) values for sTXB2 (ng/mL) compared with the once-daily arm: 4 (2.1-6.7; n = 79), 2.5 (1.4-5.65, n = 79), and 19.3 (9.7-40; n = 85), respectively. Urinary PGIM was comparable in the 3 arms. Urinary TXM was reduced by 35% in both experimental arms. Patients in the thrice-daily arm reported a higher abdominal discomfort score. In conclusion, the currently recommended aspirin regimen of 75 to 100 once daily for cardiovascular prophylaxis appears to be largely inadequate in reducing platelet activation in the vast majority of patients with ET. The antiplatelet response to low-dose aspirin can be markedly improved by shortening the dosing interval to 12 hours, with no improvement with further reductions (EudraCT 2016-002885-30).


Asunto(s)
Aspirina/administración & dosificación , Inhibidores de la Ciclooxigenasa/administración & dosificación , Inhibidores de Agregación Plaquetaria/administración & dosificación , Adulto , Anciano , Aspirina/farmacocinética , Ciclooxigenasa 1/sangre , Inhibidores de la Ciclooxigenasa/farmacología , Método Doble Ciego , Epoprostenol/orina , Humanos , Persona de Mediana Edad , Inhibidores de Agregación Plaquetaria/farmacocinética , Trombocitemia Esencial/sangre , Trombocitemia Esencial/orina
7.
Blood ; 135(5): 381-386, 2020 01 30.
Artículo en Inglés | MEDLINE | ID: mdl-31869407

RESUMEN

Patients with Philadelphia-negative myeloproliferative neoplasm (MPN) are prone to the development of second cancers, but the factors associated with these events have been poorly explored. In an international nested case-control study, we recruited 647 patients with carcinoma, nonmelanoma skin cancer, hematological second cancer, and melanoma diagnosed concurrently or after MPN diagnosis. Up to 3 control patients without a history of cancer and matched with each case for center, sex, age at MPN diagnosis, date of diagnosis, and MPN disease duration were included (n = 1234). Cases were comparable to controls for MPN type, driver mutations and cardiovascular risk factors. The frequency of thrombosis preceding MPN was similar for cases and controls (P = .462). Thrombotic events after MPN and before second cancer were higher in cases than in controls (11.6% vs 8.1%; P = .013), because of a higher proportion of arterial thromboses (6.2% vs 3.7%; P = .015). After adjustment for confounders, the occurrence of arterial thrombosis remained independently associated with the risk of carcinoma (odds ratio, 1.97; 95% confidence interval, 1.14-3.41), suggesting that MPN patients experiencing arterial events after MPN diagnosis deserve careful clinical surveillance for early detection of carcinoma. This study was registered at www.clinicaltrials.gov as NCT03745378.


Asunto(s)
Arterias/patología , Trastornos Mieloproliferativos/patología , Neoplasias Primarias Secundarias/patología , Cromosoma Filadelfia , Trombosis/patología , Estudios de Casos y Controles , Estudios de Seguimiento , Humanos , Estimación de Kaplan-Meier , Análisis Multivariante
8.
Br J Haematol ; 193(2): 386-396, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33618438

RESUMEN

Up to 30% immune thrombocytopenia (ITP) patients achieve a sustained remission off-treatment (SROT) after discontinuation of thrombopoietin receptor agonists (TPO-RAs). Factors predictive of response are lacking. Patients aged ≥18 years with newly diagnosed or persistent ITP were treated with eltrombopag for 24 weeks. Primary end-point was SROT: the proportion of responders that were able to taper and discontinue eltrombopag maintaining the response during a period of observation (PO) of six months. Secondary end-points included the association between some immunological parameters (TPO serum levels, cytokines and lymphocyte subsets) and response. Fifty-one patients were evaluable. Primary end-point was achieved in 13/51 (25%) treated patients and 13/34 (38%) patients who started the tapering. Baseline TPO levels were not associated with response at week 24 nor with SROT. Higher baseline levels of IL-10, IL-4, TNF-α and osteopontin were negative factors predictive of response (P = 0·001, 0·008, 0·02 and 0·03 respectively). This study confirms that SROT is feasible for a proportion of ITP patients treated with eltrombopag. Some biological parameters were predictive of response.


Asunto(s)
Benzoatos/uso terapéutico , Reducción Gradual de Medicamentos/estadística & datos numéricos , Hidrazinas/uso terapéutico , Púrpura Trombocitopénica Idiopática/tratamiento farmacológico , Pirazoles/uso terapéutico , Receptores de Trombopoyetina/agonistas , Adulto , Anciano , Anciano de 80 o más Años , Benzoatos/administración & dosificación , Benzoatos/toxicidad , Citocinas/inmunología , Reducción Gradual de Medicamentos/métodos , Femenino , Humanos , Hidrazinas/administración & dosificación , Hidrazinas/toxicidad , Linfocitos/inmunología , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Estudios Prospectivos , Púrpura Trombocitopénica Idiopática/diagnóstico , Pirazoles/administración & dosificación , Pirazoles/toxicidad , Receptores de Trombopoyetina/inmunología , Inducción de Remisión , Privación de Tratamiento/estadística & datos numéricos
9.
Heart Fail Rev ; 26(6): 1371-1381, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-32219615

RESUMEN

Speckle tracking echocardiography (STE) is a second-level echocardiographic technique which has gradually gained relevance in the last years. It allows semi-automatic quantification of myocardial deformation and function, overcoming most of the limitations characterizing basic echocardiography and providing an early detection of cardiac impairment. Today, its feasibility and usefulness are highly supported by literature. In particular, several studies demonstrated that STE could provide additional prognostic information beyond conventional echocardiographic and traditional clinical parameters. Moreover, a recent standardization of speckle tracking analysis regarding all cardiac chambers paved the way for the integration of STE in diagnostic and prognostic protocols for particular clinical settings. The aim of this review is to describe the prognostic role of STE in different clinical scenarios basing on currently available evidence.


Asunto(s)
Ecocardiografía , Corazón , Humanos , Pronóstico , Valores de Referencia , Reproducibilidad de los Resultados
10.
Blood ; 134(20): 1708-1711, 2019 11 14.
Artículo en Inglés | MEDLINE | ID: mdl-31570488

RESUMEN

Immune thrombocytopenia (ITP) secondary to chronic lymphoproliferative disorders (LPDs) is poorly responsive to conventional treatments. We conducted a multicenter phase 2 prospective 24-week study in 18 patients with ITP secondary to LPDs to assess the safety and efficacy of eltrombopag. Responsive patients entered an extension study for up to 5 years. For inclusion, patients should not require cytotoxic treatment and should have a platelet count <30 × 109/L or have symptoms of bleeding. Eltrombopag was initiated at 50 mg/day, with a maximum of 150 mg/day. The primary end point was platelet response after 4 weeks. Median age was 70 years (range, 43-83 years), and 14 patients had chronic lymphocytic leukemia, 2 had classic Hodgkin lymphoma, and 2 had Waldenström macroglobulinemia. All patients had received previous ITP treatments. Response rate at week 4 was 78% (95% confidence interval [CI], 58%-97%), with 50% of patients having a complete response (CR) (95% CI, 43%-57%); respective results at week 24 were 59% (95% CI, 36%-82%) with 30% reaching a CR (95% CI, 8%-52%). Median exposure to eltrombopag was 16 months; median dose at week 4 was 50 mg/day (range, 25-100 mg/day), and at week 24, it was 50 mg/day (range, 25-150 mg/day). No grade >2 adverse events were reported. Eltrombopag is active and well tolerated in ITP secondary to LPDs. This trial was registered at www.clinicaltrials.gov as #NCT01610180.


Asunto(s)
Benzoatos/uso terapéutico , Hidrazinas/uso terapéutico , Trastornos Linfoproliferativos/complicaciones , Púrpura Trombocitopénica Idiopática/complicaciones , Púrpura Trombocitopénica Idiopática/tratamiento farmacológico , Pirazoles/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Benzoatos/efectos adversos , Plaquetas/efectos de los fármacos , Enfermedad Crónica , Femenino , Humanos , Hidrazinas/efectos adversos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Pirazoles/efectos adversos
11.
Am J Hematol ; 95(3): 295-301, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31816122

RESUMEN

One out of ten patients with Philadelphia-negative myeloproliferative neoplasms (MPN) develop a second cancer (SC): in such patients we aimed at assessing the survival impact of SC itself and of MPN-specific therapies. Data were therefore extracted from an international nested case-control study, recruiting 798 patients with SC diagnosed concurrently or after the MPN. Overall, 2995 person-years (PYs) were accumulated and mortality rate (MR) since SC diagnosis was 5.9 (5.1-6.9) deaths for every 100 PYs. A "poor prognosis" SC (stomach, esophagus, liver, pancreas, lung, ovary, head-and-neck or nervous system, osteosarcomas, multiple myeloma, aggressive lymphoma, acute leukemia) was reported in 26.3% of the patients and was the cause of death in 65% of them (MR 11.0/100 PYs). In contrast, patients with a "non-poor prognosis" SC (NPPSC) incurred a MR of 4.6/100 PYs: 31% of the deaths were attributed to SC and 15% to MPN evolution. At multivariable analysis, death after SC diagnosis was independently predicted (HR and 95% CI) by patient age greater than 70 years (2.68; 1.88-3.81), the SC prognostic group (2.57; 1.86-3.55), SC relapse (1.53; 10.6-2.21), MPN evolution (2.72; 1.84-4.02), anemia at SC diagnosis (2.32; 1.49-3.59), exposure to hydroxyurea (1.89; 1.26-2.85) and to ruxolitinib (3.63; 1.97-6.71). Aspirin was protective for patients with a NPPSC (0.60; 0.38-0.95). In conclusion, SC is a relevant cause of death competing with MPN evolution. Prospective data are awaited to confirm the role of cytoreductive and anti-platelet drugs in modulating patient survival after the occurrence of a SC.


Asunto(s)
Neoplasias Hematológicas/mortalidad , Trastornos Mieloproliferativos/mortalidad , Neoplasias Primarias Secundarias/mortalidad , Factores de Edad , Anciano , Estudios de Casos y Controles , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Tasa de Supervivencia
12.
Biol Blood Marrow Transplant ; 24(9): 1814-1822, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-29857196

RESUMEN

BEAM (carmustine [bis-chloroethylnitrosourea (BCNU)]-etoposide-cytarabine-melphalan) chemotherapy is the standard conditioning regimen for autologous stem cell transplantation (ASCT) in lymphomas. Owing to BCNU shortages, many centers switched to fotemustine-substituted BEAM (FEAM), lacking proof of equivalence. We conducted a retrospective cohort study in 18 Italian centers to compare the safety and efficacy of BEAM and FEAM regimens for ASCT in lymphomas performed from 2008 to 2015. We enrolled 1038 patients (BEAM = 607, FEAM = 431), of which 27% had Hodgkin lymphoma (HL), 14% indolent non-Hodgkin lymphoma (NHL), and 59% aggressive NHL. Baseline characteristics including age, sex, stage, B-symptoms, extranodal involvement, previous treatments, response before ASCT, and overall conditioning intensity were well balanced between BEAM and FEAM; notable exceptions were median ASCT year (BEAM = 2011 versus FEAM = 2013, P < .001), Sorror score ≥3 (BEAM = 15% versus FEAM = 10%, P = .017), and radiotherapy use (BEAM = 18% versus FEAM = 10%, P < .001). FEAM conditioning resulted in higher rates of gastrointestinal and infectious toxicities, including severe oral mucositis grade ≥3 (BEAM = 31% versus FEAM = 44%, P < .001), and sepsis from Gram-negative bacteria (mean isolates/patient: BEAM = .1 versus FEAM = .19, P < .001). Response status at day 100 post-ASCT (overall response: BEAM = 91% versus FEAM = 88%, P = .42), 2-year overall survival (83.9%; 95% confidence interval [CI], 81.5% to 86.1%) and progression-free survival (70.3%; 95% CI, 67.4% to 73.1%) were not different in the two groups. Mortality from infection was higher in the FEAM group (subhazard ratio, 1.99; 95% CI, 1.02 to 3.88; P = .04). BEAM and FEAM do not appear different in terms of survival and disease control. However, due to concerns of higher toxicity, fotemustine substitution in BEAM does not seem justified, if not for easier supply.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Trasplante de Células Madre Hematopoyéticas/métodos , Linfoma/terapia , Acondicionamiento Pretrasplante/métodos , Trasplante Autólogo/métodos , Protocolos de Quimioterapia Combinada Antineoplásica/farmacología , Carmustina/farmacología , Carmustina/uso terapéutico , Estudios de Cohortes , Citarabina/farmacología , Citarabina/uso terapéutico , Etopósido/farmacología , Etopósido/uso terapéutico , Femenino , Humanos , Italia , Linfoma/patología , Masculino , Melfalán/farmacología , Melfalán/uso terapéutico , Persona de Mediana Edad , Estudios Retrospectivos
13.
Ann Hematol ; 96(9): 1421-1434, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28275823

RESUMEN

Since its discovery, the thrombopoietin (TPO) pathway has been an important pharmaceutical target for the treatment of thrombocytopenia. The first generation of TPO mimetics included peptide agents sharing homology with endogenous TPO, but these introduced a risk of antibody formation to endogenous TPO and were not successful. However, second-generation TPO mimetics or TPO receptor agonists (RAs) are currently being used to treat thrombocytopenia associated with a number of conditions, such as immune thrombocytopenia (ITP), severe aplastic anaemia (SAA), and hepatitis C virus-associated chronic liver disease. Accumulating efficacy and safety data suggest that the role of TPO-RAs in the treatment of thrombocytopenia may evolve in the near future with broader use of these agents in ITP and SAA, as well as approval in other indications, potentially including myelodysplastic syndromes, chemotherapy-associated thrombocytopenia, and post-transplant thrombocytopenia. This review provides an overview of clinical data on the efficacy and safety of TPO-RAs, emphasising recent findings that may expand their clinical utility.


Asunto(s)
Púrpura Trombocitopénica Idiopática/tratamiento farmacológico , Receptores de Trombopoyetina/agonistas , Anemia Aplásica/tratamiento farmacológico , Hepatitis C Crónica/tratamiento farmacológico , Humanos
15.
Ann Hematol ; 95(6): 863-70, 2016 May.
Artículo en Inglés | MEDLINE | ID: mdl-27001309

RESUMEN

Evans syndrome (ES) is defined by the combination (either simultaneous or sequential) of immune thrombocytopenia (ITP) and autoimmune haemolytic anaemia (AIHA). When related to secondary conditions, ES may arise in patients with chronic lymphocytic leukaemia (CLL), which is frequently associated to autoimmune cytopenias (AIC). We analysed 25 patients with ES secondary to CLL, which were identified from a large series of consecutive patients with CLL, diagnosed and followed up in two institutions. They represented 2.9 % of the whole series. Thirteen patients presented with concurrent ITP and AIHA (simultaneous ES), while others developed the two AIC sequentially. Occurrence of ES was associated with unfavourable biological prognostic factors like ZAP-70 expression, unmutated immunoglobulin heavy chain variable region gene status, 17-p13 deletion and TP53 gene mutations. Of note, the majority of patients with ES (66 %) had stereotyped B cell receptor configuration. Most patients had short-lasting remissions and required second-line treatments to control the autoimmune manifestations of ES. Patients with ES were associated with inferior survival compared to patients not developing AIC, especially when ES developed early in the course of CLL, although the reduced survival was not confirmed by multivariate analysis. In conclusion, ES secondary to CLL is a difficult-to-treat complication, characterised by adverse biological features and clinical outcome.


Asunto(s)
Anemia Hemolítica Autoinmune/diagnóstico , Anemia Hemolítica Autoinmune/etiología , Leucemia Linfocítica Crónica de Células B/complicaciones , Leucemia Linfocítica Crónica de Células B/diagnóstico , Trombocitopenia/diagnóstico , Trombocitopenia/etiología , Adulto , Anciano , Anciano de 80 o más Años , Anemia Hemolítica Autoinmune/terapia , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Ciclofosfamida/administración & dosificación , Doxorrubicina/administración & dosificación , Femenino , Estudios de Seguimiento , Humanos , Leucemia Linfocítica Crónica de Células B/terapia , Masculino , Persona de Mediana Edad , Prednisona/administración & dosificación , Pronóstico , Estudios Retrospectivos , Trombocitopenia/terapia , Resultado del Tratamiento , Vincristina/administración & dosificación
16.
Blood Adv ; 8(6): 1529-1540, 2024 Mar 26.
Artículo en Inglés | MEDLINE | ID: mdl-38231017

RESUMEN

ABSTRACT: A debate exists regarding which type of corticosteroids (standard-dose prednisone [PDN] or high-dose dexamethasone [HD-DXM]) is the best first-line treatment for adult patients with newly diagnosed untreated primary immune thrombocytopenia (pITP). An ad hoc study compared PDN with HD-DXM in newly diagnosed untreated patients with pITP (aged ≥18 but ≤80 years, platelet count of ≤20 or >20 but <50 × 109/L, and bleeding score of ≥8). Patients were randomised to receive PDN 1 mg/kg per day from days 0 to 28 (Arm A) or HD-DXM 40 mg per day for 4 days, every 14 days, for 3 consecutive courses (Arm B). Fifty-nine of 113 patients (52.2%) were randomized to Arm A and 54 of 113 (47.8%) to Arm B. In evaluable patients, total initial responses (complete response [CR], partial response [PR], minimal response [MR]) were 44 of 56 (78.57%) in Arm A and 46 of 49 (93.88%) in Arm B at days 42 and 46, respectively (P = 0.0284). Total final responses (at day 180 from initial response) were 26 of 43 (60.47%) in Arm A and 23 of 39 (58.97%) in Arm B (P = 0.8907). Total persistent responses (at 12 months from initial response) were 25 of 31 (80.65%) in Arm A and 20 of 36 (55.56%) in Arm B (P = 0.0292). Seven relapses occurred. Median follow-up was 44.4 months. Overall survival was 100% at 48 months, overall disease-free survival was 81.11% at 48 months from day 180. PDN and pulsed HD-DXM were well tolerated; HD-DXM allows effective initial responses but less long lasting than PDN. This trial was registered at www.clinicaltrials.gov as #NCT00657410.


Asunto(s)
Púrpura Trombocitopénica Idiopática , Adulto , Humanos , Prednisona/efectos adversos , Púrpura Trombocitopénica Idiopática/diagnóstico , Púrpura Trombocitopénica Idiopática/tratamiento farmacológico , Púrpura Trombocitopénica Idiopática/inducido químicamente , Dexametasona , Recuento de Plaquetas , Supervivencia sin Enfermedad
18.
J Mark Access Health Policy ; 11(1): 2230663, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37405228

RESUMEN

Introduction: Primary immune thrombocytopenia is a rare autoimmune disease characterised by a decreased platelet count resulting in an increased risk of bleeding events and even life-threatening haemorrhages. Thrombopoietin receptor agonists (TPO-RAs) are the standard of care second-line therapy for adult patients with chronic immune thrombocytopenia. The first TPO-RAs approved and reimbursed in Italy, eltrombopag and romiplostim, while effective, pose some issues in terms of safety (e.g., hepatotoxicity) or general management (e.g., dietary restrictions). Avatrombopag, an effective and well-tolerated TPO-RA, was recently granted reimbursement. Methods: A 3-year (2023-2025) budget impact analysis (BIA) was conducted to estimate its impact on the Italian National Health Service (NHS). Two scenarios were compared, of which one represents the current situation, without avatrombopag, and the other provides for an increasing market share of avatrombopag (up to 26.6%). Results: BIA shows that the increase in the use of avatrombopag correlates with savings for NHS: in the first year, saving would be €1,300,564, increasing to €2,774,210 in the third year, for a total of €6,083,231 over the 3-year period. The sensitivity analysis confirmed these savings in the scenario with avatrombopag. Conclusions: Based on this BIA, the introduction and reimbursement of avatrombopag is an efficient and advantageous choice for the Italian NHS.

19.
Int J Cardiol ; 371: 266-272, 2023 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-36067924

RESUMEN

BACKGROUND: The relief of congestion is crucial to improve heart failure (HF) patient's quality of life and prognosis. N-terminal-pro-brain natriuretic peptide (NT-proBNP) is a well-known marker of congestion, although with limited specificity. Peak atrial longitudinal strain (PALS) by speckle tracking echocardiography (STE) is an index of intracardiac pressure and HF prognosis. We aimed to determine the association between NT-proBNP and PALS and its prognostic implications in patients with HF. METHODS: Patients hospitalized for de-novo or recurrent HF and outpatients with chronic HF were included in this retrospective study. Patients with missing data, previous cardiac surgery, non-feasible STE were excluded. Clinical, laboratory and echocardiographic data were collected. STE was performed on echocardiographic records. Primary endpoint was a combination of all-cause death and HF hospitalization. RESULTS: Overall, 388 patients were included (172 acute HF, 216 chronic HF, mean age = 65 ± 12 years, 37% female). Mean LV ejection fraction = 31 ± 9%. Global PALS showed a significant inverse correlation with NT-proBNP in acute and chronic HF (all p < 0.001). During a median follow-up of 4 years, 180 patients reached the combined endpoint. NT-proBNP (AUC = 0.87) and global PALS (AUC = 0.82) were good predictors of the combined endpoint. Global PALS was the only independent predictor of the combined endpoint. Optimal risk stratification for the composite endpoint was provided combining PALS ≤15% and NTproBNP ≥874.5 ng/l. CONCLUSIONS: Global PALS is associated with NT-proBNP in acute and chronic HF and may be used as additional index of congestion to optimize therapeutic management. The combination of global PALS and NT-proBNP could enhance the prognostic stratification of HF.


Asunto(s)
Fibrilación Atrial , Insuficiencia Cardíaca , Humanos , Femenino , Persona de Mediana Edad , Anciano , Masculino , Pronóstico , Estudios Retrospectivos , Calidad de Vida , Biomarcadores , Péptido Natriurético Encefálico , Fragmentos de Péptidos/uso terapéutico , Insuficiencia Cardíaca/diagnóstico por imagen , Insuficiencia Cardíaca/tratamiento farmacológico , Enfermedad Crónica , Volumen Sistólico
20.
Hematology ; 28(1): 2253069, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37680028

RESUMEN

OBJECTIVE: Identify patient preference towards thrombopoietin-receptor agonists (TPO-RAs) and determine the clinical and social impact of immune thrombocytopenia (ITP) in Italy. METHODS: The Thrombopoietin-Receptor Agonist Patient experience (TRAPeze) survey collected responses from Italian residents from 17th January to 28th February 2022. TRAPeze utilized a discrete choice experiment (DCE) to elicit patient preferences towards TPO-RA attributes and a patient burden survey (PBS) to determine ITP disease characteristics and social impact. RESULTS: Seventy-six respondents completed the DCE, of which 69 completed both the DCE and PBS (mean [range] age 45 [18.0-73.0] years, 80% female). TPO-RA attributes with the greatest influence over respondent choice were method of administration (odds ratio [OR] 2.96; 95% confidence interval [CI] 2.16-4.06), drug-food interactions (OR 1.48; 95% CI 1.17-1.86) and frequency of dosing (OR 1.32; 95% CI 1.15-1.52). Respondents were more likely to prefer therapies administered orally over subcutaneous injection (OR 3.76; 95% CI 2.51-5.63), once weekly over once daily (OR 1.83; 95% CI 1.26-2.65), and therapies without food restrictions over with restrictions (OR 1.58; 95% CI 1.17-2.14).The most frequently reported symptoms were bruising (82%), petechiae (65%) and fatigue (64%). Most respondents (84%) felt ITP impacted familial relationships and 71% of employed respondents reported fatigue influencing their ability to work, with 31% reducing working hours. CONCLUSION: Although responses indicated a moderate perception of general health, ITP clearly impacted respondent work and social life. Our findings demonstrate respondents preferred TPO-RAs delivered orally, with less frequent dosing and without food restrictions.


Asunto(s)
Fármacos Hematológicos , Púrpura Trombocitopénica Idiopática , Trombocitopenia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Fatiga , Italia , Púrpura Trombocitopénica Idiopática/tratamiento farmacológico , Trombopoyetina/efectos adversos , Adolescente , Adulto Joven , Adulto , Anciano
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