Stavudine plasma concentrations and lipoatrophy.
J Antimicrob Chemother
; 61(4): 933-8, 2008 Apr.
Article
em En
| MEDLINE
| ID: mdl-18281306
ABSTRACT
OBJECTIVES:
The objective of this study was to determine the correlation between plasma stavudine concentrations and lipoatrophy (LA), one of the major adverse events in patients on stavudine and one of the major reasons to discontinue stavudine.METHODS:
Plasma drug concentrations were retrospectively analysed in patients who were on a stavudine-containing regimen for at least 12 months. We defined two groups of patients 21 patients with LA and 15 patients without LA or other stavudine-related side effects (i.e. neuropathy).RESULTS:
We analysed stavudine concentrations in 212 plasma samples 87 in the control group and 125 in the LA group, with a mean of four plasma samples per person (at least two a year). Demographics were comparable in LA patients and controls, except the duration of stavudine use, which was longer in the LA group 55 versus 42 months in the control group. Overall, LA patients had higher drug exposure to stavudine when compared with the controls, and this was seen in the geometric concentration ratios (CRs), which were 0.978 and 0.741, respectively (P = 0.04), and also a higher percentage of CR values >1.0, representing a drug concentration above the normal population curve (46% versus 23%, P = 0.02). In addition, the duration of stavudine therapy was independently associated with LA (P = 0.05). In the multivariate analysis, both duration of stavudine (P = 0.05) and CR > 1.0 (P = 0.02) were independently correlated with LA.CONCLUSIONS:
Monitoring of plasma stavudine concentrations can be useful to prevent stavudine-related LA.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Plasma
/
Infecções por HIV
/
Estavudina
/
Lipodistrofia
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article