PMID- 36127638 OWN - NLM STAT- MEDLINE DCOM- 20220923 LR - 20230823 IS - 1471-2407 (Electronic) IS - 1471-2407 (Linking) VI - 22 IP - 1 DP - 2022 Sep 20 TI - Immune checkpoint inhibitors and their impact on liver enzymes and attenuation. PG - 998 LID - 10.1186/s12885-022-10090-9 [doi] LID - 998 AB - BACKGROUND: Immune related adverse events impacting the liver are common from immune checkpoint inhibitor (ICI) therapy; however, there is little data regarding the subclinical impact of ICIs on liver inflammation. The study aims to determine whether ICI therapy affects liver attenuation and liver enzymes in melanoma patients with and without hepatic steatosis. METHODS: A retrospective, cohort study was conducted of patients with advanced melanoma treated with ICI therapy who received serial PET-CT scans at the Vanderbilt University Medical Center (VUMC). Primary outcomes included: liver attenuation measured by PET-CT/non-contrast CT and liver enzymes. Hepatic steatosis was diagnosed by radiologists on clinical imaging. RESULTS: Among 839 patients with advanced melanoma treated with ICIs, 81 had serial PET-CT scans approximately 12 months apart and long-term survival; of these 11 patients had pre-existing steatosis/steatohepatitis. Overall, ICI was not associated with significant increases in liver enzymes in all patients; modest decreases in liver enzymes were observed in patients with pre-existing steatosis/steatohepatitis. Similarly, liver attenuation did not change from baseline to post-treatment (58.44 vs 60.60 HU, + 2.17, p = 0.055). CONCLUSIONS: ICIs may not chronically affect liver enzymes or liver attenuation, a non-invasive measure of liver fat content and inflammation, in the general population or in those with pre-existing steatosis/steatohepatitis. CI - (c) 2022. The Author(s). FAU - Park, Benjamin C AU - Park BC AD - Vanderbilt University School of Medicine, Nashville, TN, USA. AD - Department of Medicine, Vanderbilt University Medical Center, 2220 Pierce Avenue, 777 Preston Research Building, Nashville, TN, 3723, USA. FAU - Lee, Aaron X T AU - Lee AXT AD - Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA. FAU - Ye, Fei AU - Ye F AD - Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA. FAU - Turker, Isik AU - Turker I AD - Department of Medicine, Vanderbilt University Medical Center, 2220 Pierce Avenue, 777 Preston Research Building, Nashville, TN, 3723, USA. FAU - Johnson, Douglas B AU - Johnson DB AD - Department of Medicine, Vanderbilt University Medical Center, 2220 Pierce Avenue, 777 Preston Research Building, Nashville, TN, 3723, USA. douglas.b.johnson@vumc.org. LA - eng GR - T32 CA217834/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20220920 PL - England TA - BMC Cancer JT - BMC cancer JID - 100967800 RN - 0 (Immune Checkpoint Inhibitors) SB - IM MH - Cohort Studies MH - *Fatty Liver/complications MH - Humans MH - Immune Checkpoint Inhibitors/adverse effects MH - Inflammation/complications MH - *Melanoma/drug therapy MH - Positron Emission Tomography Computed Tomography MH - Retrospective Studies MH - Tomography, X-Ray Computed/methods PMC - PMC9487144 OTO - NOTNLM OT - Immune checkpoint inhibitors OT - Immune related adverse events OT - Liver attenuation OT - Steatohepatitis OT - Steatosis COIS- The authors declare no potential conflicts of interest. EDAT- 2022/09/21 06:00 MHDA- 2022/09/24 06:00 PMCR- 2022/09/20 CRDT- 2022/09/20 23:35 PHST- 2022/04/26 00:00 [received] PHST- 2022/09/05 00:00 [accepted] PHST- 2022/09/20 23:35 [entrez] PHST- 2022/09/21 06:00 [pubmed] PHST- 2022/09/24 06:00 [medline] PHST- 2022/09/20 00:00 [pmc-release] AID - 10.1186/s12885-022-10090-9 [pii] AID - 10090 [pii] AID - 10.1186/s12885-022-10090-9 [doi] PST - epublish SO - BMC Cancer. 2022 Sep 20;22(1):998. doi: 10.1186/s12885-022-10090-9.