PMID- 36576645 OWN - NLM STAT- MEDLINE DCOM- 20230321 LR - 20230321 IS - 1590-3478 (Electronic) IS - 1590-1874 (Print) IS - 1590-1874 (Linking) VI - 44 IP - 4 DP - 2023 Apr TI - A case of severe increase of liver enzymes in a ATTRv patient after one year of inotersen treatment. PG - 1419-1422 LID - 10.1007/s10072-022-06568-w [doi] AB - BACKGROUND: Inotersen is an antisense oligonucleotide used to treat hereditary transthyretin amyloidosis (ATTRv). The most common drug-related adverse effects (AEs) include thrombocytopenia and glomerulonephritis. Hepatic damage is rare, but liver enzyme monitoring is mandatory. CASE REPORT: A 70-year-old man with ATTRv (Val30Met) treated with inotersen developed a severe increase of transaminases, with normal bilirubin and cholinesterase levels, that forced us to stop therapy. At the same time, other causes of acquired hepatitis were excluded, and the hypothesis of an inotersen-related hepatic toxicity was supported by the normalization of liver enzymes after 40 days from the drug interruption. DISCUSSION: Our case showed that 1-year inotersen treatment can stabilize neurological impairment and even improve quality of life and suggests to carefully monitor liver enzymes in order to avoid an inotersen-related hepatic dysfunction. CI - (c) 2022. Fondazione Societa Italiana di Neurologia. FAU - Severi, Daniele AU - Severi D AUID- ORCID: 0000-0003-3131-032X AD - Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Via Sergio Pansini 5, 80131, Naples, Italy. d.severi.92@gmail.com. FAU - Palumbo, Giovanni AU - Palumbo G AD - Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Via Sergio Pansini 5, 80131, Naples, Italy. FAU - Spina, Emanuele AU - Spina E AD - Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Via Sergio Pansini 5, 80131, Naples, Italy. FAU - Iovino, Aniello AU - Iovino A AD - Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Via Sergio Pansini 5, 80131, Naples, Italy. FAU - Nolano, Maria AU - Nolano M AD - Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Via Sergio Pansini 5, 80131, Naples, Italy. AD - Neurology Department, Skin Biopsy Laboratory, Istituti Clinici Scientifici Maugeri IRCCS, Telese Terme, Italy. FAU - Manganelli, Fiore AU - Manganelli F AD - Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Via Sergio Pansini 5, 80131, Naples, Italy. FAU - Tozza, Stefano AU - Tozza S AD - Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Via Sergio Pansini 5, 80131, Naples, Italy. LA - eng PT - Case Reports PT - Journal Article DEP - 20221228 PL - Italy TA - Neurol Sci JT - Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology JID - 100959175 RN - 0IEO0F56LV (Inotersen) RN - 0 (Oligonucleotides) RN - 0 (Oligonucleotides, Antisense) RN - 0 (Prealbumin) SB - IM MH - Male MH - Humans MH - Aged MH - *Quality of Life MH - Oligonucleotides/adverse effects MH - Oligonucleotides, Antisense MH - *Amyloid Neuropathies, Familial/drug therapy MH - Liver MH - Prealbumin PMC - PMC9795110 OTO - NOTNLM OT - Adverse event OT - Hereditary TTR amyloidosis OT - Inotersen OT - Liver toxicity COIS- D.S. has received a travel grant to attend scientific meetings from SOBI. F.M. received personal fees for scientific events from Alfa-Sigma, Alnylam Pharmaceuticals, and Akcea Therapeutics, and has received a travel grant to attend scientific meetings from CSL Behring. S.T. received personal fees for scientific events from Alnyalm Pharmaceuticals and Amicus Therapeutics, and travel grants to attend scientific meetings from Akcea Therapeutics. EDAT- 2022/12/29 06:00 MHDA- 2023/03/22 06:00 PMCR- 2022/12/28 CRDT- 2022/12/28 11:18 PHST- 2022/11/13 00:00 [received] PHST- 2022/12/15 00:00 [accepted] PHST- 2022/12/29 06:00 [pubmed] PHST- 2023/03/22 06:00 [medline] PHST- 2022/12/28 11:18 [entrez] PHST- 2022/12/28 00:00 [pmc-release] AID - 10.1007/s10072-022-06568-w [pii] AID - 6568 [pii] AID - 10.1007/s10072-022-06568-w [doi] PST - ppublish SO - Neurol Sci. 2023 Apr;44(4):1419-1422. doi: 10.1007/s10072-022-06568-w. Epub 2022 Dec 28.