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Short communication. Baseline factors associated with haematological toxicity that leads to a dosage reduction of pegylated interferon-alpha2a and ribavirin in HIV- and HCV-coinfected patients on HCV antiviral therapy.

Abstract：

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.

journal_name

Antivir Ther

journal_title

Antiviral therapy

authors

Fuster D,Huertas JA,Gómez G,Solà R,González García J,Vilaró J,Pedrol E,Force L,Tor J,Sirera G,Videla S,Planas R,Clotet B,Tural C,PEG-TOX Research Group.

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

841-7

issue

eissn

1359-6535

issn

2040-2058

journal_volume

pub_type

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Short communication. Baseline factors associated with haematological toxicity that leads to a dosage reduction of pegylated interferon-alpha2a and ribavirin in HIV- and HCV-coinfected patients on HCV antiviral therapy.