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Open research questions in Antibiotics Pharmacokinetics and Efficacy

50 unresolved questions extracted from the limitations and future-work sections of 363 Antibiotics Pharmacokinetics and Efficacy papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • CNS infections are a major cause of morbidity and mortality worldwide. The epidemiology of bacterial meningitis varies considerably across geographic regions and healthcare environments. The treatment of CNS infections is challenging due to the complexity of the infections and the limited effectiveness of current treatment options.

    Real-World Data on the Use of Intravenous Fosfomycin for the Treatment of Central Nervous System Infections: a Subgroup Analysis from the FORTRESS Study · 2026 · DOI

  • Antimicrobial resistance is a major global health threat. The incidence of MDR, XDR, and PDR strains of Gram-negative bacteria is rising. There is a lack of standardized approaches for defining MDR, XDR, and PDR.

    The Efficacy of Antibiotic Combination Therapies with Fosfomycin For Multi-Drug Resistant Gram-Negative Bacterial Infections · 2026 · DOI

  • The study had to proceed with caution due to the lack of information about the toxicity of EF in snails. Variability and small sample sizes prevented statistical analysis.

    Pharmacokinetics and residue depletion of enrofloxacin and its metabolite ciprofloxacin in land snails <i>(Cornu aspersum maxima)</i> · 2026 · DOI

  • The study faced challenges in terms of the retrospective design and the lack of a preliminary assessment of the number of subjects needed for inclusion. The study had to consider the impact of secular trends on the results. The study had to account for uncertainty in PK measurements and variability in PK/PD targets.

    Evaluation of Model-Informed Precision Dosing of Cefepime in Critically Ill Patients: A French Before–After Study · 2026 · DOI

  • Antimicrobial resistance remains one of the most formidable challenges to global public health. The -lactam ring inherent to both structures is highly susceptible to hydrolysis. The combination of cefixime trihydrate and potassium clavulanate requires reliable analytical methods for quality control and routine analysis.

    AN OVERVIEW OF CEFIXIME TRIHYDRATE & POTASSIUM CLAVULANATE FIXED-DOSE COMBINATION AND ITS DIFFERENT ANALYTICAL METHOD · 2026 · DOI

  • However, its pharmacokinetics in patients receiving extracorporeal membrane oxygenation (ECMO) are poorly defined, raising concerns about the adequacy of standard dosing in this population.

    Tigecycline pharmacokinetics in critically ill patients receiving extracorporeal membrane oxygenation: a prospective multicentre pilot study · 2026 · DOI

  • Bacteriophage therapy is a promising alternative to antibiotics, yet its clinical translation is limited by the lack of a quantitative pharmacological framework to guide dosing and to predict efficacy.

    Second-order kinetics describe systemic clearance of therapeutic bacteriophages · 2026 · DOI

  • Based on expert opinion, continued efforts to evaluate mechanism, clinical course, and risk would be valuable to better understand this underreported and underrecognized reaction.

    Trimethoprim-sulfamethoxazole-associated respiratory failure: a rapid review of the literature · 2026 · DOI

  • The potential for rifampicin to reduce the effectiveness of prednisolone poses a challenge for clinicians. The need to monitor patients taking rifampicin and prednisolone closely is a challenge. The development of strategies to minimize the effects of rifampicin on prednisolone effectiveness is a challenge.

    Rifampicin reduces effectiveness and bioavailability of prednisolone. · 1983 · DOI

  • There is a need to understand the effects of rifampicin on the metabolism of steroids. Prior work has not fully investigated the pharmacokinetics of prednisolone in patients taking rifampicin.

    Rifampicin reduces effectiveness and bioavailability of prednisolone. · 1983 · DOI

  • The development of a chromatographic method is a challenging and complicated process due to multiple interacting parameters. The traditional univariate approach for developing a chromatographic method has numerous drawbacks.

    Emerging quality-by-design optimized HPLC method for the concurrent determination of cefixime and ornidazole: a multi-criteria green and blue environmental footprinting · 2026 · DOI

  • The lack of personalized dosing strategies for linezolid in critically ill children. The high inter-individual variability in linezolid's pharmacokinetic behavior.

    Machine learning combined with population pharmacokinetics: a hybrid model for predicting the plasma concentration of linezolid in critically ill pediatric patients · 2026 · DOI

  • leakage must be acknowledged. concerning potential data Individual CL and V were estimated using all available concentration data from each patient via the EBE method. When these PK parameters were used to predict concentrations treatment modalities. Fourth, a these at earlier time points, information from later time points was indirectly incorporated, which constitutes data leakage and leads to a certain degree of overfitting. This data leakage issue also affected the external validation metrics, as the same EBE workflow was applied to the external dataset. Future studies should adopt time-constrained validation schemes using only historical data to estimate PK parameters for sequential predictions, thereby avoiding data leakage.

    Machine learning combined with population pharmacokinetics: a hybrid model for predicting the plasma concentration of linezolid in critically ill pediatric patients · 2026 · DOI

  • Further studies are needed to evaluate the effectiveness and safety of Fosfomycin in treating CNS infections in different populations and settings. The study's results highlight the need for continued research into the treatment of CNS infections, particularly in cases where other antibiotics are not effective.

    Real-World Data on the Use of Intravenous Fosfomycin for the Treatment of Central Nervous System Infections: a Subgroup Analysis from the FORTRESS Study · 2026 · DOI

  • There is a lack of standardized approaches for determining which antimicrobial classes or groups should be used to define MDR, XDR, and PDR. There is a need for universal definitions to identify and classify bacteria that are resistant to multiple antimicrobial agents.

    The Efficacy of Antibiotic Combination Therapies with Fosfomycin For Multi-Drug Resistant Gram-Negative Bacterial Infections · 2026 · DOI

  • There is a lack of information on the safety of levofloxacin use during pregnancy. The study aims to fill this gap by examining the embryotoxic effects of levofloxacin exposure.

    Determination of Embryotoxic Effects of Levofloxacin Exposure by the In Ovo Method · 2026 · DOI

  • There is a lack of information about the pharmacokinetics and tissue distribution of enrofloxacin and its main metabolite, ciprofloxacin, in land snails. The study aims to fill this gap by assessing how enrofloxacin and ciprofloxacin behave pharmacokinetically in snails.

    Pharmacokinetics and residue depletion of enrofloxacin and its metabolite ciprofloxacin in land snails <i>(Cornu aspersum maxima)</i> · 2026 · DOI

  • The need to evaluate DDIs between RIF, CLR, and ETI. The lack of understanding of the effect of concomitant RIF and CLR on ETI plasma exposures.

    Effect of concomitant rifampin and clarithromycin on elexacaftor-tezacaftor-ivacaftor using a physiologically based pharmacokinetic (PBPK) modeling approach · 2026 · DOI

  • Further studies can investigate the implementation of sustainable protocols for other types of antibiotics. The study of the environmental impact of antibiotic administration can be extended to other healthcare settings.

    Optimizing β-lactam antibiotics with the highest concentration–for continuous infusion reduce carbon footprint in intensive care · 2026 · DOI

  • The environmental impact of antibiotic administration is a concern. There is a need to evaluate the environmental benefit of implementing the most sustainable protocol for antibiotic administration.

    Optimizing β-lactam antibiotics with the highest concentration–for continuous infusion reduce carbon footprint in intensive care · 2026 · DOI

  • AUC estimation using trough concentrations is less accurate than that with two-point sampling methods. Data showing the accuracy of AUC estimation using trough-only data on Day 1 and Day 2 are scarce.

    Comparison of Trough-Only and Peak–Trough Concentration Data for the Calculation of Vancomycin Area under the Concentration–Time Curve on Day 2 Using Previous and Updated Population Pharmacokinetic Models · 2026 · DOI

  • Therefore, the clinical applicability of the present findings, particularly with respect to therapeutic efficacy and safety outcomes, remains limited, and further research is warranted. Further inves- tigations are warranted to develop strategies for improving the predictive accuracy of AUC on Day 2 using trough-only data.

    Comparison of Trough-Only and Peak–Trough Concentration Data for the Calculation of Vancomycin Area under the Concentration–Time Curve on Day 2 Using Previous and Updated Population Pharmacokinetic Models · 2026 · DOI

  • The study did not perform a preliminary assessment of the number of subjects needed for inclusion. The study used a retrospective design. The study did not upload the statistical analysis plan on an external repository.

    Evaluation of Model-Informed Precision Dosing of Cefepime in Critically Ill Patients: A French Before–After Study · 2026 · DOI

  • There is a lack of data on alternative anticoagulation strategies for pediatric Aquadex therapy. Conventional anticoagulants have significant limitations, such as variable anticoagulant response and risk of bleeding.

    Epoprostenol as an alternative anticoagulant for pediatric aquadex therapy: a safe and feasible option · 2026 · DOI

  • There is a limited number of analytical methods reported for the simultaneous estimation of cefixime trihydrate and potassium clavulanate. No validated UV spectrophotometric method has been published for this combination.

    AN OVERVIEW OF CEFIXIME TRIHYDRATE & POTASSIUM CLAVULANATE FIXED-DOSE COMBINATION AND ITS DIFFERENT ANALYTICAL METHOD · 2026 · DOI

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50 open questions have been extracted from the limitations and future-work passages of 363 Antibiotics Pharmacokinetics and Efficacy papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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