Active clinical trials for "Bacterial Infections"

This is a phase 1b/2 study of a single dose of intravenous (IV) bacteriophage in males and non-pregnant females, at least 18 years old, diagnosed with Cystic Fibrosis (CF). This clinical trial is designed to assess the safety and microbiological activity of bacteriophage product WRAIR-PAM-CF1, directed at Pseudomonas aeruginosa in clinically stable CF individuals chronically colonized with P. aeruginosa. WRAIR-PAM-CF1 is a 4 component anti-pseudomonal bacteriophage mixture containing between 4 x 10^7 and 4 x 10^9 Plaque Forming Units (PFU) of bacteriophage. Enrollment will occur at up to 20 clinical sites in the United States. In stage 1, two eligible subjects will be assigned to each of the three dosing arms receiving a single dosage of the IV bacteriophage therapy (4 x 10^7 PFU, 4 x 10^8 PFU, and 4 x 10^9 PFU; total of 6 sentinel subjects), followed by 30 ± 7 days observation period. If no SAEs (related to the study product) are identified during the 96 hours after bacteriophage administration for all Sentinel Subjects in Stage 1, the study will proceed to Stage 2. In Stage 2a, 32 subjects will be enrolled into one of 4 arms (placebo IV, 4 x 10^7 PFU, 4 x 10^8 PFU, and 4 x 10^9 PFU) in a 1:1:1:1 allocation. An interim analysis will be performed after all subjects have completed follow up visit 7 on Day 30 to select the IV bacteriophage dose with the most favorable safety and microbiological activity profile. During Stage 2b, subjects will be randomized into the bacteriophage (dose selected based on Interim Analysis following Stage 2a) or placebo arm. The final sample size is expected to be up to 72 subjects total with up to 25 subjects in the placebo arm and up to 25 subjects in the Stage 2b bacteriophage dose.

Data regarding optimal treatment for extended-spectrum beta-lactamase (ESBL) producing Enterobacterales bloodstream infection are lacking. Observational studies show conflicting results when comparing treatment with combination beta-lactam-beta-lactamase inhibitor and carbapenems. The investigators aim to evaluate the effect of definitive treatment with meropenem vs. piperacillin-tazobactam on the outcome of patients with bacteremia due to cephalosporin-non-susceptible Enterobacteriaceae. The investigators hypothesize that piperacillin-tazobactam is non-inferior to meropenem.

The study aims to assess the antibacterial effect and symptoms-relief of Qingfei Granule in the patients with pediatric acute upper respiratory tract infection with bacterial infection.

GNB5 is an investigator-initiated multicentre non-inferiority randomized controlled trial which aims to assess the efficacy and safety of shortened antibiotic for patients hospitalized with a Gram negative bacteremia with a urinary tract source of infection (GNB). Five days after initiation of antimicrobial therapy for GNB, participants are randomized 1:1 to parallel treatment arms: 5 days (intervention) or minimum 7 days (control) of antibiotic treatment. The intervention group discontinues antibiotics at day 5 if clinically stable and afebrile. The control group receives antibiotics for a duration of 7 days or longer at the discretion of the treating physician. The primary outcome is 90-day survival without clinical or microbiological failure to treatment, which will be tested with a non inferiority margin of 10%.

This study aims to build on previous work characterising the PK of penicillin-V to explore the potential impact of probenecid on PK-PD target attainment. Achievement of the aims of this study would provide data to support the design of experimental studies exploring the clinical impact of probenecid on treatment outcomes and also provide a rationale for exploration of probenecid's effects on a larger number of beta-lactam antibiotics. Hypothesis: Addition of probenecid to oral phenoxymethylpenicillin (penicillin-V) has a clinically relevant effect on pharmacokinetic-pharmacodynamic (PK-PD) target attainment.

Amoxicillin or Amoxicillin/Clavulanic acid antibiotic therapy has been shown to be associated with disrupting the microbiota population particularly Bifidobacterium, which may have further GI clinical implications. The present randomized clinical trial is aimed to assess if probiotic Bifidobacterium breve PRL2020 can help modulate the Bifidobacterium population and its clinical implications after antibiotic Amoxicillin or Amoxicillin/Clavulanic acid antibiotic therapy.

The primary objectives of this study are to assess the safety, tolerability, and pharmacokinetics (PK) of cefiderocol after single-dose administration in hospitalized pediatric participants 3 months to < 12 years of age with suspected or confirmed aerobic Gram-negative bacterial infections and after multiple-dose administration in hospitalized pediatric participants 3 months to < 18 years of age with suspected or confirmed complicated urinary tract infection (cUTI), hospital-acquired bacterial pneumonia (HABP), or ventilator-associated bacterial pneumonia (VABP).

Surgical site infection is an infection at a place in the body where surgery has taken place, and has been reported in around 5% of people undergoing an operation. In vascular surgery, infection rates are as high as 30%. Methods to reduce this rate of infection should be investigated thoroughly for their effectiveness and cost-effectiveness. The investigators aim to conduct a research trial examining one such method. Leukomed Sorbact is a wound dressing coated with a chemical (DACC) derived from spider-silk that interacts with, and binds bacteria, causing them to be mechanically removed from a wound when the dressing is changed.The trial aims to compare the effectiveness of this dressing to a standard, non-coated dressing, in the reduction of surgical site infection. 718 patients from a number of centres across the UK will be recruited to this study. Adult patients who are having a vascular surgery operation will be approached for entry into the trial. The trial will be explained to them, as well as an explanation that participation is voluntary and their operation or other aspects of their care will not be impacted in any way should participants not wish to participate. Participants will be randomised by computer into one of two groups - one group whose wounds are dressed with Leukomed Sorbact, and the other whose wounds are dressed with a standard dressing. Patients will be followed up at 5-7 days and 30 days, and at 1 year. At the follow up, their wounds will be inspected for infection, and participants will be asked to complete short questionnaires measuring quality of life. The trial will aim to answer a number of questions, with the primary question being does a DACC coated dressing applied after an operation reduce the risk of an infection at the surgery site? It will also ask whether this treatment is cost-effective and whether it promotes satisfactory healing. A Study Within a Trial will validate a remote diagnostic measure for detecting surgical site infection using wound images and the Bluebelle Wound Healing Questionnaire.

The main aim of the study is to investigate the plasma pharmacokinetics (PK) and safety of intravenous (IV) administration of a single dose of 400 milligrams (mg) or 600 mg RO7223280 in critically ill participants with bacterial infections.

SUMMARY Rationale: Optimal antibiotic dosing in patients with bacterial infections is of high importance. Underdosing can lead to treatment failure and can promote emergence of antimicrobial resistance, while overdosing may lead to (harmful) side effects. The antibiotic cefuroxime is a second-generation cephalosporin and is frequently used in hospitalized patients. Cefuroxime exhibits, like other cephalosporins, time-dependent killing. The pharmacodynamic target can therefore be best described as the percentage of the dosing interval that the serum concentration remains above the minimum inhibitory concentration (MIC) of the bacteria (T>MIC). Attaining the pharmacokinetic-pharmacodynamic (PK-PD) target of 50%T>MIC is associated with antimicrobial therapeutic efficacy of cefuroxime. Because cefuroxime is almost exclusively excreted through the kidneys, dose reduction of cefuroxime for patients with renal impairment (eGFR<30ml/min/1.73m2) is standard of care. No prospective evidence exists that currently guideline-recommended cefuroxime dosing regimens result in at least 50%T>MIC in adult patients on general wards, especially not in patients with renal impairment receiving a reduced dose of cefuroxime. Objective: To investigate whether the PK-PD target of cefuroxime (50%T>MIC) is attained in the first 24 hours of treatment in adult patients on general wards with adequate and impaired renal function receiving regular and reduced doses of cefuroxime. Study design: Observational, prospective single center cohort study Study population: Adult patients (age ≥ 18 years) on general wards of Noordwest Ziekenhuisgroep (NWZ) receiving cefuroxime as part of standard care. Intervention: Three venapunctures within a period of 72 hours, containing a maximum of 18ml of venous blood in total. Main study parameters: Percentage of patients attaining the cefuroxime PK-PD target of 50%T>MIC. This will be investigated for patients with adequate renal function receiving a regular cefuroxime dose and impaired renal function receiving a guideline recommended reduced dose. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Risks imposed by participation are considered negligible. Three venapunctures, obtaining a maximum of 18 ml venous blood are not expected to cause AEs or SAEs. Participation itself does not bring any benefit as cefuroxime treatment is part of standard care, but the group related benefit could be significant. With the results of this study, current recommended cefuroxime dosing regimens are prospectively validated or an advice to reconsider current guidelines will be obtained.