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1.
J Gastroenterol Hepatol ; 30(8): 1301-8, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25777337

RESUMO

BACKGROUND AND AIM: Thrombocytopenia is frequently observed in patients with chronic hepatitis C virus (HCV) infection and cirrhosis, although it can also be observed in patients without cirrhosis by a virus-mediated phenomenon. This study assessed the prevalence, characteristics, and outcomes of antiviral therapy in patients with chronic HCV infection and thrombocytopenia not associated with cirrhosis. METHODS: The study included 1268 patients with HCV infection and thrombocytopenia enrolled in the phase 3 ENABLE studies that assessed the impact of eltrombopag on achieving a sustained virologic response to pegylated interferon and ribavirin. The study population was subdivided according to baseline FibroSURE test results into patients with non-cirrhosis (FibroSURE < 0.4) and cirrhosis-related (FibroSURE ≥ 0.75) thrombocytopenia. RESULTS: Compared with patients with cirrhosis-related thrombocytopenia (n = 995; 78.5%), non-cirrhotic patients with thrombocytopenia (n = 59; 4.6%) were younger (mean age [95% confidence interval (CI)]: 43.9 [40.7-47.2] vs 52.7 [52.2-53.3] years; P < 0.0001), predominantly female (64% [51-76] vs 30% [27-33]; P < 0.0001), and less frequently had a Model for End-Stage Liver Disease score ≥ 10 (24% [14-37] vs 45% [42-49]; P = 0.0012), low albumin levels (≤ 35 g/L; 2% [0-9] vs 32% [29-35]; P < 0.0001), and prevalence of diabetes mellitus (3% [0-12] vs 21% [19-24]; P = 0.0005). The sustained virologic response rate was higher in non-cirrhotic patients with thrombocytopenia (46% [95% CI, 33-59] vs 16% [14-18]; P < 0.0001). CONCLUSIONS: Patients with thrombocytopenia associated with HCV who have lower FibroSURE test results may have better preserved liver function and higher sustained virologic response rates than patients with cirrhosis.


Assuntos
Antivirais/uso terapêutico , Hepatite C Crônica/complicações , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Polietilenoglicóis/uso terapêutico , Ribavirina/uso terapêutico , Trombocitopenia/etiologia , Adulto , Fatores Etários , Quimioterapia Combinada , Feminino , Hepatite C Crônica/epidemiologia , Hepatite C Crônica/virologia , Humanos , Interferon alfa-2 , Cirrose Hepática , Masculino , Pessoa de Meia-Idade , Prevalência , Proteínas Recombinantes/uso terapêutico , Fatores Sexuais , Trombocitopenia/epidemiologia , Resultado do Tratamento
2.
N Engl J Med ; 357(22): 2227-36, 2007 Nov 29.
Artigo em Inglês | MEDLINE | ID: mdl-18046027

RESUMO

BACKGROUND: Eltrombopag is a new, orally active thrombopoietin-receptor agonist that stimulates thrombopoiesis. We evaluated its ability to increase platelet counts and facilitate treatment for hepatitis C virus (HCV) infection in patients with thrombocytopenia associated with HCV-related cirrhosis. METHODS: Seventy-four patients with HCV-related cirrhosis and platelet counts of 20,000 to less than 70,000 per cubic millimeter were randomly assigned to receive eltrombopag (30, 50, or 75 mg daily) or placebo daily for 4 weeks. The primary end point was a platelet count of 100,000 per cubic millimeter or more at week 4. Peginterferon and ribavirin could then be initiated, with continuation of eltrombopag or placebo for 12 additional weeks. RESULTS: At week 4, platelet counts were increased to 100,000 per cubic millimeter or more in a dose-dependent manner among patients for whom these data were available: in 0 of the 17 patients receiving placebo, in 9 of 12 (75%) receiving 30 mg of eltrombopag, in 15 of 19 (79%) receiving 50 mg of eltrombopag, and in 20 of 21 (95%) receiving 75 mg of eltrombopag (P<0.001). Antiviral therapy was initiated in 49 patients (in 4 of 18 patients receiving placebo, 10 of 14 receiving 30 mg of eltrombopag, 14 of 19 receiving 50 mg of eltrombopag, and 21 of 23 receiving 75 mg of eltrombopag) while the administration of eltrombopag or placebo was continued. Twelve weeks of antiviral therapy, with concurrent receipt of eltrombopag or placebo, were completed by 36%, 53%, and 65% of patients receiving 30 mg, 50 mg, and 75 mg of eltrombopag, respectively, and by 6% of patients in the placebo group. The most common adverse event during the initial 4 weeks was headache; thereafter, the adverse events were those expected with interferon-based therapy. CONCLUSIONS: Eltrombopag therapy increases platelet counts in patients with thrombocytopenia due to HCV-related cirrhosis, thereby permitting the initiation of antiviral therapy. (ClinicalTrials.gov number, NCT00110799.)


Assuntos
Benzoatos/uso terapêutico , Hepatite C/complicações , Hidrazinas/uso terapêutico , Cirrose Hepática/sangue , Pirazóis/uso terapêutico , Receptores de Trombopoetina/agonistas , Trombocitopenia/tratamento farmacológico , Adulto , Idoso , Antivirais/uso terapêutico , Benzoatos/efeitos adversos , Método Duplo-Cego , Feminino , Cefaleia/induzido quimicamente , Hepatite C/tratamento farmacológico , Humanos , Hidrazinas/efeitos adversos , Interferon alfa-2 , Interferon-alfa/uso terapêutico , Cirrose Hepática/complicações , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas , Polietilenoglicóis/uso terapêutico , Pirazóis/efeitos adversos , Proteínas Recombinantes , Trombocitopenia/sangue , Trombocitopenia/etiologia
3.
Artigo em Inglês | MEDLINE | ID: mdl-26901304

RESUMO

This case report describes the periodontal management of a patient with end-stage liver disease undergoing liver transplantation. In the first part of this article, all medical and dental findings are reported to elaborate adequate diagnoses. A patient-specific treatment plan was structured given the challenging periodontal and systemic scenarios. The second part describes the periodontal therapy delivered in close interaction with the referring physicians. Last, the article reviews current principles and protocols in managing these patients.


Assuntos
Periodontite Crônica/terapia , Transplante de Fígado , Humanos , Hospedeiro Imunocomprometido , Masculino , Pessoa de Meia-Idade
4.
Nephrol Dial Transplant ; 21(2): 437-43, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16234288

RESUMO

BACKGROUND: Chronic hepatitis C infection is prevalent among haemodialysis patients. The goal of our study was to determine the efficacy and safety of pegylated interferon alpha-2b in haemodialysis patients with chronic hepatitis C. METHODS: We conducted a trial which randomized haemodialysis patients with chronic hepatitis C to 1.0 or 0.5 microg/kg of pegylated interferon alpha-2b subcutaneously, weekly for up to 48 weeks. End-points were sustained viral response and adverse events. Data were analysed as intention to treat and as intended per protocol. RESULTS: After 16 patients were enrolled, the study was terminated because of adverse events and modifications needed in the study design. Nine subjects were randomized to the 1.0 microg/kg group and seven subjects were randomized to the 0.5 microg/kg group. Serious adverse events requiring discontinuation of therapy occurred in five (56%) subjects in the 1.0 microg/kg group and in two (28%) subjects in the 0.5 microg/kg group (P = 0.36). The most common adverse events were hypertension and infection unrelated to neutropenia. Two (22%) subjects in the 1.0 microg/kg group, both genotype 1, had a sustained viral response, and none of the subjects in the 0.5 microg/kg group had a sustained viral response (P = 0.47). Five subjects in the 1.0 microg/kg group were able to complete 24 weeks or longer of therapy as per protocol and two (40%) were sustained responders. CONCLUSIONS: In our study group, pegylated interferon alpha-2b was poorly tolerated and was associated with substantial side effects. Sustained response rates seen with pegylated interferon in our study do not appear to be better than rates reported for standard interferon alpha-2b.


Assuntos
Antivirais/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Diálise Renal , Adulto , Feminino , Humanos , Interferon alfa-2 , Masculino , Pessoa de Meia-Idade , Polietilenoglicóis , Proteínas Recombinantes
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