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Antivir Ther ; 10(7): 841-7, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16312180

RESUMO

OBJECTIVE: To assess the baseline factors associated with haematological toxicity that lead to ribavirin or pegylated interferon (peginterferon) dosage reductions in hepatitis C and human immunodeficiency virus (HCV/HIV)-coinfected patients. DESIGN: Multicentre, prospective, observational study. SETTING: Eleven hospitals in Spain during the period 2002-2003. SUBJECTS AND METHODS: One-hundred and forty-two HIV/HCV-coinfected patients received peginterferon-alpha2a plus ribavirin. Baseline characteristics and haematological parameters were recorded at baseline, week 4, 8, 12, 24 and 48. Cox's regression model was used to study the factors associated with the appearance of a haemoglobin level below 10g/dl (haemoglobin-endpoint), a neutrophil count below 750/mm(3) (neutrophil-endpoint) and a platelet count below 50,000/mm(3) (platelet-endpoint). RESULTS: Nineteen patients (13.4%) reached the haemoglobin-endpoint, 22.5% the neutrophil-endpoint and 7% the platelet-endpoint. Mean time of follow-up was 8 months (+/-3.5). A baseline haemoglobin level below 14g/dl [hazard ratio (HR): 3.65; 95% confidence interval (CI): 1.46-9.06] and treatment with zidovudine (HR: 3.25; 95% CI: 1.31-8.11) were the independent factors associated with the appearance of the haemoglobin-endpoint. A baseline neutrophil below 2050/mm(3) (HR: 3.59; 95% CI: 1.77-7.28) and baseline weight <60 kg (HR: 2.21; 95% Cl: 1.04-4.56) were independently associated with the appearance of the neutrophil-endpoint. Baseline platelet count (x1000/mm(3) decrease) (HR: 1.074; 95% CI: 1.04-1.11) was independently associated with the appearance of the platelet-endpoint. CONCLUSIONS: Baseline factors allow the identification of a subset of HIV/HCV-coinfected patients who are prone to experience haematological toxicity during HCV antiviral therapy.


Assuntos
Infecções por HIV/complicações , Hepatite C/complicações , Hepatite C/tratamento farmacológico , Interferon-alfa/administração & dosagem , Interferon-alfa/efeitos adversos , Polietilenoglicóis/administração & dosagem , Polietilenoglicóis/efeitos adversos , Ribavirina/administração & dosagem , Ribavirina/efeitos adversos , Adulto , Antivirais/administração & dosagem , Antivirais/efeitos adversos , Feminino , Humanos , Interferon alfa-2 , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Proteínas Recombinantes , Fatores de Risco
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