Abstract | AIM: METHODS: A randomized controlled prospective nonblinded study was performed in 93 consecutive hospitalized patients requiring antibiotics for acute exacerbations of chronic obstructive pulmonary disease. Forty-seven patients received 2 g of cefotaxime intravenously over 24 h plus a loading dose of 1 g, and 46 patients were given the drug intermittently (1 g three times daily). RESULTS: Similar pathogens were identified in both groups, being mostly Haemophilus influenzae (51%), Streptococcus pneumoniae (21%) and Moraxella catharralis (18%). Mean minimal inhibitory concentration (MIC) values were also similar before and after treatment in both groups. Clinical cure was achieved in 37/40 (93%) (CA) vs. 40/43 (93%) (IA) of patients (P = 0.93). In microbiologically evaluable patients, criteria such as 70% of treatment time with antibiotic concentrations > or = MIC (CA 100%vs. IA 60% of patients) and/or > or = 5 x MIC (CA 100%vs. IA 55% of patients) were significantly better following continuous administration (P < 0.01). Samples with suboptimal antibiotic concentrations were found in 0% of CA vs. 65% of IA patients (P < 0.01). CONCLUSIONS: Although clinical cure rates were comparable, continuous cefotaxime administration led to significantly greater proportions of concentrations > MIC and > 5 x MIC compared with intermittent dosing. Continuous administration of cefotaxime at a lower dose [2 g (CA) vs. 3 g (CI)] is equally effective pharmacodynamically and microbiologically, may be more cost-effective and offers at least the same clinical efficacy. Based on these observations, we recommend continuous administration of cefotaxime as the preferred mode of administration.
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Authors | A R H van Zanten, M Oudijk, M K E Nohlmans-Paulssen, Y G van der Meer, A R J Girbes, K H Polderman |
Journal | British journal of clinical pharmacology
(Br J Clin Pharmacol)
Vol. 63
Issue 1
Pg. 100-9
(Jan 2007)
ISSN: 0306-5251 [Print] England |
PMID | 16869814
(Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
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Chemical References |
- Anti-Bacterial Agents
- Cefotaxime
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Topics |
- Adult
- Aged
- Anti-Bacterial Agents
(administration & dosage, pharmacokinetics, pharmacology)
- Cefotaxime
(administration & dosage, pharmacokinetics, pharmacology)
- Disease Susceptibility
(etiology)
- Female
- Humans
- Male
- Middle Aged
- Prospective Studies
- Pulmonary Disease, Chronic Obstructive
(drug therapy)
- Respiratory Tract Infections
(drug therapy)
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