Iomeprol 71.44% (Iodine 350mg/ml) solution for injection 100ml bottles

ObjectivesThis systematic review and meta-analysis aimed to assess and compare acute adverse reactions (AAR) rates among non-ionic low-osmolar contrast media (LOCM), examining administration routes and severity-specific impact on AAR rates.Materials and methodsA PubMed and Cochrane Library search identified studies published between January 1989 and March 2024. Inclusion criteria focused on studies with > 100 adult patients who received intra-arterial or intravenous LOCM (iobitridol, iohexol, iomeprol, iopamidol, iopromide, and ioversol). Duplicate reports and studies with insufficient information were excluded. Data extraction and quality assessment followed PRISMA guidelines and the Newcastle Ottawa Scale. Statistical analyses were performed using R software, including random effects, meta-regression, and sub-group analysis.ResultsAfter excluding duplicates and non-compliant studies, 32 peer-reviewed articles of initially 6701 identified studies, were included in the final analysis. The pooled overall AAR rate was 0.73%, with ioversol showing the lowest rate (0.34%). From all studies, pooled rates (random effects model) of moderate and severe AARs were 0.10% and 0.014% (p ConclusionAAR rates were low but indicated significant differences between LOCM; iohexol and ioversol demonstrated the overall most favorable safety profiles.Key pointsQuestion Knowledge about AAR is crucial for patient safety, but comprehensive data on the safety profiles of non-ionic LOCM is lacking. Findings Ioversol showed the lowest overall AAR rate; iohexol demonstrated the lowest moderate/severe AAR. Study design, LOCM type, and injection route influenced AAR rates. Clinical relevance This meta-analysis provides evidence for differences in non-ionic LOCM safety profiles, particularly for moderate and severe AARs. These can guide clinicians in selecting contrast agents, aiming to further reduce risks, and improve patient safety in diagnostic imaging.

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BackgroundA comparative hypersensitivity risk profile of frequently used iodinated contrast media (ICM) may be required for their safer use.ObjectiveTo explore the association between hypersensitivity reactions (HSRs) and specific ICM and characterize the spectrum of ICM-related HSRs.MethodsWe performed a disproportionality analysis and proportionality test to assess the safety profile of ICM-related HSRs and compare the frequency ratio of specific HSRs in diverse age, sex, and country subgroups. We used reports downloaded from the US Food and Drug Administration Adverse Event Reporting System and data on the national use of individual ICM for this analysis.ResultsA total of 11,343,365 adverse event reports were collected from the first quarter of 2013 to the first quarter of 2021, among which 5,432 cases were identified as ICM-induced HSRs. All of the studied ICMs were associated with overreporting frequencies of HSRs, in which iomeprol showed the highest reporting odds ratio (ROR) of 24.75 (95% CI, 19.61-31.24). Iopromide (ROR = 22.29; 95% CI, 20.18-24.62) and ioversol (ROR = 20.85; 95% CI, 18.54-23.44) were more likely to cause angioedema than other ICMs, particularly in the group aged 45 to 64 years. Iomeprol was associated with the largest disproportionality for severe cutaneous adverse reactions (ROR = 127.90; 95% CI, 103.32-159.88), whereas iodixanol exhibited maximal incidence when total use cases were considered. Regarding anaphylactic shock, iopamidol presented the highest disproportionality (ROR = 31.11; 95% CI, 27.15-35.65), especially in males or seniors aged greater than 65 years, whereas iopromide resulted in the maximum frequency in China and the United States.ConclusionsDifferent ICMs exhibited diverse profiles regarding HSRs, which could be further affected by age, sex, or geographic area. Prospective studies are required for patient safety.

Abstract licence: CC BY-NC-ND