Indian Journal Watch: 26 October 2026

Indian Journal Watch, InfectionIndia.com

Indian Journal Watch

26 October 2026

Peer-reviewed microbiology, infectious disease, AMR and infection-control papers from India and South Asia, published or added to PubMed from 24 to 26 October 2026.

Lead articles

AMR · Clinical Infectious Diseases

Cefepime-Zidebactam for Infections Caused by Carbapenem-Resistant Gram-Negative Bacteria, Including Metallo-β-Lactamase Producers: A Phase 2, Open-Label, Single-Arm, Multicenter Study

Clinical Infectious Diseases · doi:10.1093/cid/ciag665 · PubMed 42925126

What
A phase 2 clinical trial of intravenous cefepime-zidebactam in adults with infections caused by carbapenem-resistant (CR) Gram-negative bacteria, including metallo-β-lactamase (MBL) producers. Investigators are based mainly in India (including Christian Medical College, Vellore, and Medanta, Lucknow), with co-authors in Brazil, Lebanon, South Africa and the USA.
Design
Prospective, open-label, single-arm, multicentre phase 2 trial. Participants received cefepime-zidebactam for 7-21 days with renal dose adjustment. The primary endpoint was investigator-assessed clinical cure at test-of-cure (TOC) in the clinically and microbiologically evaluable (CME) population; outcomes were also reviewed by an external adjudication committee.
Key findings
Seventy-two participants received treatment; 68 were in the Micro-ITT population and 60 in the CME population. Of 68 qualifying isolates, 56 (82.4%) were MBL producers, predominantly NDM-β-lactamase producers. Investigator-assessed clinical cure at TOC was 91.7% (95% CI 81.6%-97.2%), and favourable microbiological outcome was 90.0%. Among CME participants with MBL-producing pathogens, clinical cure was 93.9%. External adjudication gave clinical cure of 86.7%. Twenty-eight-day mortality was 2.8%; treatment-related adverse events occurred in 15.3% and serious treatment-related adverse events in 2.8%.
Limitations
Single-arm, open-label design with no comparator; 60 evaluable adults, predominantly with complicated urinary tract infection/acute pyelonephritis (58.3%). Adjudicated cure was assessed post hoc.
Relevance to India
NDM-producing carbapenem-resistant Gram-negative bacteria are widespread in Indian hospitals, and this trial reports clinical data for a β-lactam/β-lactam-enhancer combination in a population dominated by MBL producers.

AMR · Diagnostic Microbiology and Infectious Disease

Evaluation of Ceftriaxone–Sulbactam–EDTA against Carbapenem-resistant Enterobacterales and non-fermenters: correlating in vitro susceptibility with molecular detection of carbapenemase genes by Xpert Carba-R

Diagnostic Microbiology and Infectious Disease · doi:10.1016/j.diagmicrobio.2026.117702 · PubMed 42925659

What
In vitro activity of ceftriaxone-sulbactam-disodium EDTA (CSE) against carbapenem-resistant Gram-negative bacteria (CR-GNB), and its relationship with carbapenemase genotype, at SDM College of Medical Sciences and Hospital, Dharwad, Karnataka.
Design
A total of 208 non-duplicate carbapenem-resistant clinical isolates (Enterobacterales and non-fermenting Gram-negative bacilli) from patients admitted to a tertiary care centre. Susceptibility was tested by Kirby-Bauer disk diffusion, and blaNDM, blaKPC, blaOXA-48, blaIMP and blaVIM were detected with the Xpert Carba-R assay. Multivariable logistic regression examined genotype and CSE susceptibility.
Key findings
Overall, CSE demonstrated 65.9% susceptibility, with a combined susceptible-intermediate rate of 88.5%. Acinetobacter baumannii showed the highest susceptibility (85.5%) and Pseudomonas aeruginosa the lowest (23.8%). Carbapenemase genes were detected in 72.6% of isolates, with blaNDM (60.6%) and blaOXA-48 (42.8%) predominating; co-harbouring of blaNDM and blaOXA-48 was the most frequent profile (31.3%). Isolates harbouring blaOXA-48 alone (aOR 5.11; p = 0.008) and blaNDM + blaOXA-48 (aOR 3.24; p = 0.004) were independently associated with CSE susceptibility.
Limitations
Isolates came from a single tertiary care centre, susceptibility was determined by Kirby-Bauer disk diffusion, and the abstract reports in vitro results without clinical outcomes.
Relevance to India
The authors conclude that integrating rapid molecular carbapenemase detection with phenotypic susceptibility testing may improve interpretation of susceptibility results for carbapenem-resistant Gram-negative infections, which are dominated by NDM and OXA-48 in this Indian collection.

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Items are summaries of published abstracts and are not clinical advice. Readers should consult the original article. Figures are quoted as reported in each abstract.

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