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S Waga,
M Yokoyama,
T Tsushima,
C Chiba,
T Saito,
T Okamoto, T Asuka,
J Kitazawa,
N Tateyama,
Y Sato,
Y Takahashi
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ABSTRACT: Tazobactam/Piperacillin (TAZ/PIPC) is a newly developed intravenous antibiotics, in which TAZ, a new potent inhibitor of beta-lactamases, is combined with PIPC, a well-established beta-lactam antibiotics, at the ratio of 1:4. In this study, we clinically evaluated efficacy of the drug in 14 pediatric patients with various infections, and pharmacokinetic study was applied to 3 patients. Range of age was from 1-month to 15 1/4-year. Patients consisted of 9 cases of pneumonia, 3 urinary tract infection, 1 acute otitis media, and 1 left sacroiliitis with sepsis. Standard dose of TAZ/PIPC was 50 mg/kg/dose and administered 2-4 times per day with intravenous injection or drip infusion. Two cases of pneumonia were excluded because of non-bacterial infection. Nine causative pathogens including 3 Gram-positive cocci and 6 Gram-negative bacilli were detected in 7 patients, of which 5 Gram-negative strains produced bete-lactamase. All of cases showed 100% of efficacy rate and bacteriological eradication rate. It was noted that beta-lactamase-producing E. coli and B. catarrhalis were eradicated efficiently by TAZ/PIPC, which should be resistant to PIPC alone according to MIC data. Non-serious diarrhea and discomfort of back with nausea were observed in one each patients as side effects. Both of side effects were transient, and improved with anti-diarrheic agent or cessation of the drug, respectively. As abnormal laboratory test results, moderate increases of the eosinophils and platelets counts as well as moderate elevation of the transaminases were observed in 2 separate patients. Pharmacokinetics study showed that Cmax, T1/2, and AUC were similar to the data reported in adult patients. Urinary recovery rate in the first 6 hours also resemble the data from adult patients. Based on above results, TAZ/PIPC is a useful agents pediatric infections by beta-lactamase producing strains also.
The Japanese journal of antibiotics 06/1998; 51(5):305-18.
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ABSTRACT: Pharmacokinetic, bacteriological and clinical studies on cefdinir (CFDN), a newly developed oral cephalosporin, were performed on children with infections. The pharmacokinetics was examined in 3 patients. The peak plasma concentrations were 1.97 micrograms/ml, 0.84 microgram/ml and 1.67 micrograms/ml in the 3 patients. The 0 to 6 or 8-hour urinary excretion rates were 22.2%, 18.1%, and 32.7%, respectively. These results were similar to those in adult patients. Clinical response to CFDN was evaluated in 21 patients, 4 patients with pharyngitis (an efficacy rate of 100%), 7 with tonsillitis (85.7%), 1 with bronchitis (excellent), 1 with pneumonia (fair), 6 with scarlet fever (100%), 1 with staphylococcal scaled skin syndrome (good) and 1 with urinary tract infection (good). Thus, an overall efficacy rate of 90.5% was achieved. With regard to microbiological effect on pathogens, 14 of the 15 strains identified as pathogens were eradicated, with an eradication rate of 93.3%. The safety was evaluated in a total of 23 cases. Diarrhea, elevated eosinophil count and elevated S-GPT were observed in one patient each. The side effect and abnormalities in laboratory tests were not serious, however. It was concluded that CFDN, with its excellent antibacterial effect, was an efficacious and safe drug for the treatment of pediatric infections.
The Japanese journal of antibiotics 09/1990; 43(8):1414-23.
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ABSTRACT: Clinical efficacies of a new macrolide antibiotic, rokitamycin (RKM, TMS-19-Q), were studied in acute pediatric infections. Responses to the RKM administration were evaluable in 62 out of 68 patients consisted of 7 patients with pharyngitis (efficacy rate of 85.7%, 6/7 patients), 4 with bronchitis (25.0%, 1/4), 9 with tonsillitis (100%, 9/9), 13 with mycoplasmal pneumonia (100%, 13/13), 13 with hemolytic streptococcal infections (92.3%, 12/13), 14 with pneumonia (57.1%, 8/14), one with pertussis (100%, 1/1) and another with Chlamydia pneumonia (100%, 1/1) thus an overall efficacy rate of 82.3% was achieved. Urticaria was observed in one of the patients as an adverse reaction to the drug, while abnormal laboratory test results were noted in 3 patients, but none of such changes were severe. The drug, even when administered in combination with a theophylline preparation, exerted no effects on the serum concentration of the latter.
The Japanese journal of antibiotics 07/1988; 41(6):673-85.
