Antibiotic-induced dysbiosis may affect the efficacy of immune checkpoint inhibitors. We investigated the impact of antibiotics on the clinical outcomes of nivolumab in patients with non-small cell lung cancer (NSCLC). Patients who received nivolumab for NSCLC between July 2015 and June 2018 and who were followed up until June 2020 were included in a retrospective cohort analysis. Of 140 eligible patients, 70 were on antibiotics. Overall survival (OS) was shorter in patients on antibiotics (ABX) compared to those not on antibiotics (NoABX) (p = 0.014). OS was negatively associated with piperacillin/tazobactam (PTZ) (HR = 3.31, 95% CI: 1.77–6.18), days of therapy (DOT) ≥ 2 weeks (HR = 2.56, 95% CI: 1.30–5.22) and DOT of PTZ. The defined daily dose (DDD) in PTZ (r = 0.27) and glycopeptides (r = 0.21) showed weak correlations with mortality. There was no difference in progression-free survival (PFS) between ABX and NoABX; however, PFS was negatively associated with the antibiotic class PTZ and DOT of PTZ. Therefore, the use of a broad-spectrum antibiotic, such as PTZ, the long-term use of antibiotics more than 2 weeks in total and the large amount of defined daily dose of specific antibiotics were associated with decreased survival in patients receiving nivolumab for NSCLC.

This study aims to evaluate potentially appropriate antiplatelet therapy in patients with chronic kidney disease. A systematic analysis was conducted to identify the clinical outcomes of available antiplatelet therapy regimens with enhanced platelet inhibition activity (intervention of 5 regimens) over the standard dose of clopidogrel-based dual antiplatelet therapy in patients with renal insufficiency. An electronic keyword search was performed on Pubmed, Embase, and Cochrane Library per PRISMA guidelines. We performed a prespecified net clinical benefit analysis (a composite of the rates of all-cause or cardiac-related death, myocardial infarction, major adverse cardiac outcomes, and minor and major bleeding), and included 12 studies. The intervention substantially lowered the incidence of all-cause mortality (RR 0.67; p = 0.003), major adverse cardiac outcomes (RR 0.79; p < 0.00001), and myocardial infarction (RR 0.28; p = 0.00007) without major bleeding (RR 1.14; p = 0.33) in patients with renal insufficiency, but no significant differences were noticed with cardiac-related mortality and stent thrombosis. The subgroup analysis revealed substantially elevated bleeding risk in patients with severe renal insufficiency or on hemodialysis (RR 1.68; p = 0.002). Our study confirmed that the intervention considerably enhances clinical outcomes in patients with renal insufficiency, however, a standard dose of clopidogrel-based antiplatelet therapy is favorable in patients with severe renal insufficiency.

Jae Song Kim, Min Jung Geum, Eun Sun Son, Yun Mi Yu, Jae Hee Cheon, and Kyeng Hee Kwon. Gut and Liver 2022;16:736-45. https://doi.org/10.5009/gnl210371

Background: Solid organ transplant recipients with diabetes mellitus face unique challenges in glycemic control, compounded by the metabolic effects of immunosuppressants. Although sodium–glucose cotransporter 2 (SGLT2) inhibitors are effective in diabetes, evidence for their use in transplant recipients remains limited. We aimed to systematically review the efficacy and safety of SGLT2 inhibitors in transplant recipients with diabetes. Methods: A systematic review and meta‐analysis was conducted by searching the MEDLINE, Embase, and Cochrane CENTRAL databases for studies published before July 2025. Seventeen comparative studies involving 12,892 transplant recipients with diabetes were included. Efficacy and safety data of SGLT2 inhibitors were extracted and analyzed. A random‐effects model was used to pool the results. Results: SGLT2 inhibitors led to a significantly greater reduction in HbA1c (mean difference [MD]: −0.59% and 95% confidence interval [CI]: −0.91 to −0.26) and body mass index (MD: −0.82 kg/m ² and 95% CI: −1.54 to −0.10) compared to controls. The risks of dialysis (odds ratio [OR]: 0.50 and 95% CI: 0.31–0.79), major adverse cardiovascular events (OR: 0.29 and 95% CI: 0.22–0.38), heart failure (OR: 0.66 and 95% CI: 0.52–0.83), urinary tract infection (OR: 0.45 and 95% CI: 0.22–0.92), graft rejection (OR: 0.73, 95% and CI: 0.64–0.83), and all‐cause mortality (OR: 0.40 and 95% CI: 0.27–0.59) were significantly lower in the SGLT2 inhibitor group. Conclusions: SGLT2 inhibitors were associated with improved glycemic control, weight reduction, and favorable trends in cardiovascular outcomes among solid organ transplant recipients. Most safety outcomes, including urinary tract infection and graft rejection, were comparable between groups or more favorable in the SGLT2 inhibitor group, particularly among kidney transplant recipients. These findings support the use of SGLT2 inhibitors in this population. However, further large‐scale studies are warranted to validate these results and assess the long‐term effects across different transplant types.

PURPOSE: Patient-controlled analgesia (PCA) has been considered for managing cancer pain; however, limited research has been conducted on optimizing continuous infusion rates with PCA. This study aimed to evaluate the efficacy and safety of a method that optimizes background infusion (BI) alongside PCA for titrating intravenous (IV) morphine in managing cancer-related pain. METHODS: Forty-four patients with solid tumors who could not manage pain with oral or transdermal opioid analgesics were randomly assigned in a 1:1 ratio to receive IV morphine through PCA or the conventional method. In the PCA group, the BI rate was automatically adjusted on the basis of the frequency and interval of bolus button presses; contrastingly, BI rate in the conventional group was adjusted at the discretion of the medical staff. The primary outcome was the daily number of patient complaints of breakthrough pain (numeric rating scale ≥4). RESULTS: The PCA group reported a significant decrease in breakthrough pain complaints at 24 hours (median, 0 v 3 times/d; P = .012) and a lower proportion of nonresponders at 24 hours (21% v 55%; P = .048) compared with the conventional group. The total daily IV dose of morphine increased in the PCA group and exhibited a significant difference between two groups within 48 hours (median, 76.80 v 44.42 mg/d; P = .036). No uncontrolled opioid-related adverse effects were observed in either group. CONCLUSION: PCA, with an optimized BI rate, facilitated faster titration of IV morphine than the conventional method, achieving tolerable and rapid pain relief.

Impact of Pre-admission Central Nervous System Medication Use on Delirium in Hospitalized Patients with Advanced Cancer: A Multicenter, Prospective, Observational Study in Korea