ArticleThe Journal of antimicrobial chemotherapy2021
In vitro activity of imipenem/relebactam, meropenem/vaborbactam, ceftazidime/avibactam, cefepime/zidebactam and other novel antibiotics against imipenem-non-susceptible Gram-negative bacilli from Taiwan.
Article in The Journal of antimicrobial chemotherapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 4 syntheses or guidelines pooled it, 45 citations in OpenAlex.
- Resistance of gram-negative and gram-positive pathogens to omadacycline: a systematic review.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026Pooled it
- Resistance of Gram-Negative Bacteria to Eravacycline: A Systematic Review of Data from In Vitro Studies.Pathogens (Basel, Switzerland) · 2025Pooled it
- Global trends of ceftazidime-avibactam resistance in gram-negative bacteria: systematic review and meta-analysis.Antimicrobial resistance and infection control · 2025Pooled it
- Prevalence of colistin resistance in clinical isolates ofFrontiers in microbiology · 2024Pooled it
- Resistance to novel antimicrobial agents among NDM-and OXA-48-producing Carbapenem-resistant Enterobacterales in Lebanon.Frontiers in cellular and infection microbiology · 2026Article
- Article
- The Rapid CarbaLux Combination Test to Uncover Bacterial Resistance and Heteroresistance Prior to Antibiotic Treatment.Diagnostics (Basel, Switzerland) · 2025Article
- Clinical Characteristics of Patients Who Acquired Gram-Negative Bacteria During Ceftazidime-Avibactam Therapy.Infectious diseases and therapy · 2025Article
- In vitro activity and resistance mechanisms of novel antimicrobial agents against metallo-β-lactamase producers.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025Review
- Antimicrobial activity of ceftazidime-avibactam against KPC-2-producing Enterobacterales: a cross-combination and dose-escalation titration study with relebactam and vaborbactam.Microbiology spectrum · 2024Article
- Global Resistance of Imipenem/Relebactam against Gram-Negative Bacilli: Systematic Review and Meta-Analysis.Current therapeutic research, clinical and experimental · 2024Review
- Comparison of the inoculum effect of in vitro antibacterial activity of Imipenem/relebactam and Ceftazidime/avibactam against ESBL-, KPC- and AmpC-producing Escherichia coli and Klebsiella pneumoniae.Annals of clinical microbiology and antimicrobials · 2023Article
- In vitro activity of ceftazidime/avibactam, imipenem/relebactam and meropenem/vaborbactam alone or in combination with polymyxin B against carbapenem resistant Acinetobacter baumannii.The Journal of antibiotics · 2023Article
- Infectious Diseases Society of America 2022 Guidance on the Treatment of Extended-Spectrum β-lactamase Producing Enterobacterales (ESBL-E), Carbapenem-Resistant Enterobacterales (CRE), and Pseudomonas aeruginosa with Difficult-to-Treat Resistance (DTR-P. aeruginosa).Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022Article
- New Perspectives on Antimicrobial Agents: Imipenem-Relebactam.Antimicrobial agents and chemotherapy · 2022Review
- Diminished Susceptibility to Cefoperazone/Sulbactam and Piperacillin/Tazobactam inPolish journal of microbiology · 2022Article
- Review
- The Role of Colistin in the Era of New β-Lactam/β-Lactamase Inhibitor Combinations.Antibiotics (Basel, Switzerland) · 2022Review
- Global Threat of Carbapenem-Resistant Gram-Negative Bacteria.Frontiers in cellular and infection microbiology · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo investigate the susceptibility of imipenem-non-susceptible Escherichia coli (INS-EC), Klebsiella pneumoniae (INS-KP), Acinetobacter baumannii (INS-AB) and Pseudomonas aeruginosa (INS-PA) to novel antibiotics.
methodsMICs were determined using the broth microdilution method. Carbapenemase and ESBL phenotypic testing and PCR for genes encoding ESBLs, AmpCs and carbapenemases were performed.
resultsZidebactam, avibactam and relebactam increased the respective susceptibility rates to cefepime, ceftazidime and imipenem of 17 INS-EC by 58.8%, 58.8% and 70.6%, of 163 INS-KP by 77.9%, 88.3% and 76.1% and of 81 INS-PA by 45.7%, 38.3% and 85.2%, respectively. Vaborbactam increased the meropenem susceptibility of INS-EC by 41.2% and of INS-KP by 54%. Combinations of β-lactams and novel β-lactamase inhibitors or β-lactam enhancers (BLI-BLE) were inactive against 136 INS-AB. In 58 INS-EC and INS-KP with exclusively blaKPC-like genes, zidebactam, avibactam, relebactam and vaborbactam increased the susceptibility of the partner β-lactams by 100%, 96.6%, 84.5% and 75.9%, respectively. In the presence of avibactam, ceftazidime was active in an additional 85% of 20 INS-EC and INS-KP with exclusively blaOXA-48-like genes while with zidebactam, cefepime was active in an additional 75%. INS-EC and INS-KP with MBL genes were susceptible only to cefepime/zidebactam. The β-lactam/BLI-BLE combinations were active against INS-EC and INS-KP without detectable carbapenemases. For INS-EC, INS-KP and INS-AB, tigecycline was more active than omadacycline and eravacycline but eravacycline had a lower MIC distribution. Lascufloxacin and delafloxacin were active in <35% of these INS isolates.
conclusionsβ-Lactam/BLI-BLE combinations were active in a higher proportion of INS-EC, INS-KP and INS-PA. The susceptibility of novel fluoroquinolones and tetracyclines was not superior to that of old ones.
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