Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0348321 (Haemophilus)
 15,372 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Bacteriological, pharmacokinetic and clinical studies on cefpirome (CPR, HR 810), a new cephem antibiotic, were carried out in the field of pediatrics. The results obtained are summarized below. 1. Antibacterial activities of CPR against clinically isolated strains of Staphylococcus aureus, Streptococcus pneumoniae, Streptococcus pyogenes, Streptococcus agalactiae, Escherichia coli, Klebsiella pneumoniae, Haemophilus influenzae and Haemophilus parainfluenzae were superior to those of ceftazidime. 2. Plasma concentrations and urinary excretion rates after intravenous bolus injection of CPR at doses of 10, 20 and 40 mg/kg for 5 minutes in 2 cases each were determined. Mean peak plasma concentrations of CPR at these dose levels were 33.9, 62.9 and 96.0 micrograms/ml at 15 minutes with plasma half-lives of 1.58, 1.69, and 2.13 hours, respectively. Mean cumulative urinary excretion rates in the first 8 hours after administration were 51.2, 78.0 and 74.9%, respectively. 3. Ten patients with bacterial infections (pneumonia 5 cases, urinary tract infection 5 cases) were treated with CPR at a daily dose of 16-79 mg/kg/day. The overall clinical efficacy and bacteriological eradication rates were both 100%. 4. No adverse reactions were observed except in 1 case of mild pain in blood vessels. Abnormal laboratory test results were also mild, slight elevation of GOT, GPT and thrombocytosis in 1 case and eosinophilia in 1 case.
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PMID:[Bacteriological, pharmacokinetic and clinical studies of cefpirome in the field of pediatrics]. 188 Sep 22

Cefpirome (CPR, HR 810), a new cephem antibiotic, was investigated for its penetration into cerebrospinal fluid (CSF), and its clinical efficacy against bacterial infections. 1. CSF concentrations of CPR following intravenous injection was investigated in 2 patients with purulent meningitis. In one of them, the concentrations were 2.11 micrograms/ml and 1.31 micrograms/ml on 3 and 8 days, respectively, after start of administration. In the other patient, they were 24.2 micrograms/ml, and 1.35 micrograms/ml on 2 days and 7 days after administration, respectively. 2. Antibacterial activities of CPR against clinical isolates, Escherichia coli, Haemophilus influenzae, Staphylococcus aureus and Streptococcus pneumoniae, except those against Pseudomonas aeruginosa, were clearly superior to those of ceftazidime. 3. Clinical efficacies evaluated in 15 patients were "excellent" in 9, "good" in 5 and "unknown" in 1. The overall efficacy rate was 93.0%. 4. Clinical efficacies were "excellent" in 1 patient with bacteremia, "excellent" in 6 and "good" in one of 7 patients with pneumonia, and "good" in both of the 2 patients with purulent meningitis. Clinical efficacies against other diseases were "excellent" or "good", in 1 patient with pyothorax, 1 patient with purulent lymphadenitis, and 2 patients with facial cellulitis. In 1 patient with biliary tract infection, the results of treatment with CPR were "unknown" due to insufficient clinical data. 5. No adverse reactions were observed except in 1 patient who showed an increase in platelet count.
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PMID:[Clinical evaluation of cefpirome in pediatrics and a study on the penetration into cerebrospinal fluid]. 188 Sep 27

Cefpirome (HR 810, CPR), a new cephem antibiotic, was investigated for its experimental and clinical studies in pediatrics. The results obtained are summarized as follows. 1. Plasma and urinary levels of CPR were determined in 2 children (age 5 and 7 years) after the one shot intravenous injection of the drug at 20 mg/kg. Average plasma levels of the drug were 44.7 micrograms/ml, 28.5 micrograms/ml, 10.5 micrograms/ml, 4.6 micrograms/ml and 1.5 micrograms/ml at 1/2 hour, 1 hour, 2 hours, 4 hours and 6 hours, respectively, and the average half life was 1.57 hours. Average urinary levels of the drug were 1,785 micrograms/ml, 545 micrograms/ml and 198 micrograms/ml at 0-2 hours, 2-4 hours, 4-6 hours, respectively and the average urinary elimination rate was 52.0%. The results were nearly equivalent to those in adults except for urinary elimination rate which tended to be slightly lower than that in adults. 2. Cerebrospinal fluid levels in 3 cases of purulent meningitis treated with CPR were investigated. Cerebrospinal fluid levels in a case of Neisseria meningitidis were 11.5-23.1 micrograms/ml at 1 hour and 0.94 microgram/ml at 5 hours after intravenous injection of 44.4 mg/kg, 4 times a day. Cerebrospinal fluid levels in a case of Streptococcus pneumoniae were 1.01-4.23 micrograms/ml at 1 hour after intravenous injection of 49.0 mg/kg, 6 times a day, and in the other case with Streptococcus pneumoniae, the levels were 16.8-37.1 micrograms/ml at 1 hour, 11.3 and 3.60 micrograms/ml at 3 and 4 hours after intravenous injection 52.2 mg/kg, 6 times a day. These results are not inferior to those with cefotaxime or ceftriaxone. These levels appear to be higher than MIC90 values against Escherichia coli, Streptococcus agalactiae, S. pneumoniae or Haemophilus influenzae which are the major pathogens of these diseases. 3. CPR was given to 62 patients and clinical efficacy, bacteriological response and adverse reactions were evaluated. Evaluated cases for clinical efficacy included 3 cases of purulent meningitis, 1 case of acute purulent otitis media, 2 cases of acute purulent tonsillitis, 1 case of acute bronchitis, 49 cases of acute pneumoniae, 1 case of scarlet fever, 1 case of acute osteomyelitis, 1 case of acute enterocolitis, and 2 cases of acute UTI, totalling 61 cases. Clinical efficacies were excellent in 38 cases, good in 22 cases and fair in 1 case with an efficacy rete of 98.4% (excellent + good).(ABSTRACT TRUNCATED AT 400 WORDS)
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PMID:[Laboratory and clinical studies on cefpirome in pediatrics]. 188 1

Cefpirome (HR 810) is a new cephalosporin related to cefotaxime that has potent bactericidal activity against a broad spectrum of gram-negative and gram-positive organisms. The pharmacokinetics and bacteriological efficacy of cefpirome administered as a single intravenous dose were assessed in rabbits with experimental Haemophilus influenzae type b and Escherichia coli K1 meningitis. The mean penetrations into the cerebrospinal fluid (CSF) in relation to the amount of drug in serum of animals infected with H. influenzae and E. coli were 25 and 54%, respectively. The median CSF bactericidal titers were 1:128 against both organisms at 1 h of uninfected animals, the mean penetration was 4.5%. There was a significant reduction in the concentrations of bacteria in CSFs of both groups of animals treated with cefpirome compared with that in untreated groups. Mortality was also significantly lower in treated animals than it was in untreated animals. Intravenous administration of dexamethasone before the cefpirome dose did not compromise penetration, bactericidal titers, or antibacterial activity of cefpirome in CSF.
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PMID:Pharmacokinetics and antibacterial efficacy of cefpirome (HR 810) in experimental Escherichia coli and Haemophilus influenzae type b meningitis. 202 53

Cefpirome (CPR, HR 810), a new parenteral cephalosporin antibiotic, was studied for its pharmacokinetics, bacteriological and clinical effects in the field of pediatrics. 1. CPR was very active against Staphylococcus aureus, Staphylococcus epidermidis, Coagulase-negative staphylococci, Streptococcus pneumoniae among Gram-positive cocci. Antibacterial activities of CPR were also strong against Branhamella catarrhalis, Haemophilus influenzae, Escherichia coli, Salmonella sp., Klebsiella oxytoca, Enterobacter cloacae, Pseudomonas aeruginosa among Gram-negative rods. 2. The plasma concentration 15 minutes after a bolus intravenous injection of 20 mg/kg was 80.4 micrograms/ml, and the T 1/2 (beta) was 1.03 hours. Plasma concentrations after intravenous drip infusion over 30 minutes of 20 mg/kg and 25 mg/kg were 48.3 and 117 micrograms/ml at the end of infusion, and T 1/2 (beta) for these dosage were 1.14 and 1.45 hours. 3. The urinary recovery rates over 6 hours after administration were 45.2-63.9% for CPR. 4. Clinical efficacies of CPR were excellent in 31 patients and good in 30 patients with an efficacy rate of 98.4%. In bacteriological examinations, causative organisms were eradicated with an eradication rate of 95.7%. 5. As side effects, diarrhea was observed in 5 patients and loose stool in 1 patient with an incidence of 8.2%. Abnormal values were found in some patients in clinical laboratory tests for eosinophilia, thrombocytosis and an elevation of GOT, GPT and triglyceride. These findings indicate that CPR will be useful against bacterial infections in pediatrics.
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PMID:[Pharmacokinetic and clinical studies on cefpirome in pediatrics]. 204 Nov 58

Pharmacokinetics and clinical effects of cefpirome (CPR, HR 810) in children were studied. When 20 mg/kg and 40 mg/kg doses of CPR were administered to 4 children through 30 minutes' drip infusion, half-lives were 1.23 +/- 0.23 (mean +/- S.D.) hours and 1.37 +/- 0.35 (mean +/- S.D.) hours, respectively for the 2 dose levels, and recovery rates in urine in the first 6 hours after administration were 74.8% and 56.1%, respectively. CPR was administered to 15 cases (3 tonsillitis, 3 bronchitis, 5 bronchopneumonia, 1 acute cystitis, 1 coxoiliatitis, 1 otitis media, 1 otitis externa). The efficacy rate was 86.7%. Seven strains of bacteria were isolated and identified 4 Haemophilus influenzae, 3 Staphylococcus aureus, 1 Pseudomonas sp. from these cases. These bacteria in children were followed after administration of CPR. Six strains were eradicated and one was reduced in number. No adverse effects of CPR were observed except in 2 cases, one of which showed transient eosinophilia and the other showed a transient increase of transaminase. These results suggest that CPR may be an effective and safe drug to use on children clinically.
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PMID:[Pharmacokinetics and clinical evaluation of cefpirome in children]. 204 Nov 60

Sixty adult patients with suspected systemic bacterial infections were treated with cefpirome 1 g or 2 g twice daily for 5-22 days. Forty-seven patients were evaluable for clinical efficacy. Diagnoses in evaluable patients were urinary tract infections (20), pneumonia (10), soft tissue infections (17), and bone and joint infections (4); four patients had two infections each. Nine patients were bacteraemic and all were cured; the responsible bacteria were Escherichia coli (6), Streptococcus pneumoniae (1), Pseudomonas aeruginosa (1), and Haemophilus influenzae (1). One patient with a soft tissue infection failed to respond clinically to cefpirome. Bacteriologically, 41 of 48 isolated pathogens (85%) were eradicated. In wound cultures, three strains of Staphylococcus aureus and one each of Ps. aeruginosa and Str. faecalis persisted. One Enterobacter sp. relapsed in urine. Of isolated strains, only Str. faecalis and methicillin resistant Staph, epidermidis were resistant to cefpirome. Staph, aureus strains were inhibited in vitro by 0.25 to 2 mg/l of cefpirome in agar dilution. Adverse effects, probably or possibly related to cefpirome, were skin reactions (3), fever (1), Clostridium difficile diarrhoea (2), and disturbed taste sensation (1). Tolerance was good. Cefpirome is suitable for large-scale comparative trials.
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PMID:Efficacy and safety of cefpirome (HR810). 320 79

The in-vitro activity of the new parenteral cephalosporins, HR 810 (HR) and BMY-28142 (BMY), was compared with that of other beta-lactam antibiotics, including cefotaxime, against a total of 315 recent clinical isolates and characterized beta-lactamase producers. An agar dilution procedure was used to determine MICs and two inocula (10(4) and 10(6) cfu) were used throughout. Against all species of the Enterobacteriaceae tested, both HR and BMY were as active as, or slightly more active than, cefotaxime. HR differed from cefotaxime mainly in being eight-fold more active against Pseudomonas aeruginosa and two-fold more active against Staphylococcus aureus. BMY was also eight-fold more active than cefotaxime against Ps. aeruginosa but was two-fold less active than the latter against Staph. aureus. Both new compounds had good activity against Haemophilus influenzae, including the beta-lactamase producing strains of that species, and both had poor activity against the Bacteroides fragilis group (MIC90 greater than 128 mg/l).
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PMID:HR 810 and BMY-28142, two new cephalosporins with broad-spectrum activity: an in-vitro comparison with other beta-lactam antibiotics. 383 81

The activity of the extended spectrum cephalosporin cefpirome (HR 810) was compared with that of other beta-lactams and gentamicin. A total of 524 clinical isolates and strains known to be resistant to certain agents were studied. Against the Enterobacteriaceae, Haemophilus influenzae and Neisseria spp. cefpirome was highly active (MIC90 less than or equal to 0.5 mg/l), generally being as active or slightly more active than ceftazidime and cefotaxime, and 8 to 32 times more active than cefuroxime. Against Pseudomonas aeruginosa cefpirome (MIC90 8 mg/l) was four-fold less active than ceftazidime. Staphylococcus aureus was susceptible to cefpirome (MIC90 2 mg/l) and cefpirome was the only cephalosporin tested with significant activity against Lancefield Group D streptococci. Bacteroides spp. (with the exception of Bact. ureolyticus) were resistant to cefpirome. The compound was bactericidal to all the susceptible strains studied with the exception of Lancefield Group D streptococci. The major target site for cefpirome was PBP 3 and the protein binding was low.
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PMID:The antimicrobial activity of cefpirome, a new cephalosporin. 387 98

The in vitro activity of BMY-28142, a new cephalosporin, was tested by a broth microdilution system and compared with those of cefotaxime, ceftazidime, cefoperazone, moxalactam, and HR 810 against 747 bacterial isolates, one-third of which were resistant to one or more third-generation cephalosporins. BMY-28142 was the most active drug tested against 326 Enterobacteriaceae with an MIC for 90% of the organisms tested (MIC90) of 1.0 micrograms/ml. Against these Enterobacteriaceae the relative activities were: BMY-28142 greater than HR 810 greater than moxalactam and ceftazidime greater than cefotaxime greater than cefoperazone. For cefotaxime- and cefoperazone-resistant strains, the MIC90 of BMY-28142 was 4.0 micrograms/ml (compared with 0.13 micrograms/ml for susceptible strains). BMY-28142, with an MIC90 of 8.0 micrograms/ml for Pseudomonas aeruginosa, was about half as active as ceftazidime. The relative activities against P. aeruginosa were: ceftazidime greater than BMY-28142 greater than HR 810 greater than cefoperazone greater than moxalactam and cefotaxime. The MIC90 of BMY-28142 against staphylococci was 2.0 micrograms/ml, which was fourfold less active than HR 810, slightly less active than cefotaxime and cefoperazone, and fourfold more active than ceftazidime and moxalactam. BMY-28142 was very active against beta-lactamase-positive and -negative Haemophilus influenzae (MIC90, 0.06 micrograms/ml), Neisseria gonorrhoeae (MIC90, 0.015 micrograms/ml),aand nonenterococcal streptococci. Its activity against Streptococcus faecalis was poor (MIC90, 64 micrograms/ml). BMY-28142 was stable against the several beta-lactamases tested but exhibited little beta-lactamase inhibitory effect.
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PMID:Evaluation of the in vitro activity of BMY-28142, a new broad-spectrum cephalosporin. 389 16


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