PMID- 36661196 OWN - NLM STAT- MEDLINE DCOM- 20230412 LR - 20230509 IS - 1399-0012 (Electronic) IS - 0902-0063 (Linking) VI - 37 IP - 4 DP - 2023 Apr TI - Efficacy of bortezomib desensitization among heart transplant candidates. PG - e14907 LID - 10.1111/ctr.14907 [doi] AB - Allosensitization is prevalent in heart transplant candidates and is associated with prolonged waiting times and poor outcomes following transplantation. We analyzed the efficacy of a desensitization regimen consisting of plasma exchange, intravenous immunoglobulin, and bortezomib among 25 consecutive sensitized waitlisted candidates at our center from 2016 to 2021. Following desensitization therapies, all C1q negative antibodies were removed from a candidate's unacceptable antigen list. There was a significant decrease in the median number of human leukocyte antigen (HLA) class I (21-15, p = .001) but not class II antibodies (7-6.5, p = .07). There was a significant corresponding decrease in median calculated panel reactive antibodies for class I (90%-74%, p = .004) but not class II (74.5%-75.5%, p = .30). Following desensitization, 76% of patients were transplanted at a median of 91 days. One-year survival following transplant was 89% with a 33% rate of antibody-mediated rejection (AMR). In conclusion, a bortezomib desensitization protocol was modestly effective for class I antibodies and allowed successful transplant in most cases when combined with selective crossing of C1q negative antigens. CI - (c) 2023 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. FAU - Brinkley, D Marshall AU - Brinkley DM AUID- ORCID: 0000-0002-9511-7767 AD - Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Mangione, MariaSanta AU - Mangione M AD - Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA. FAU - Fossey, Sallyanne C AU - Fossey SC AD - Dialysis Clinic, Inc., Transplant Immunology Laboratory, Nashville, Tennessee, USA. FAU - Harrison, Kimberly M AU - Harrison KM AD - Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Zalawadiya, Sandip AU - Zalawadiya S AD - Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Rali, Aniket S AU - Rali AS AUID- ORCID: 0000-0002-3778-9979 AD - Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Siddiqi, Hasan K AU - Siddiqi HK AD - Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Lindenfeld, JoAnn AU - Lindenfeld J AD - Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Schlendorf, Kelly H AU - Schlendorf KH AD - Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA. LA - eng PT - Journal Article DEP - 20230202 PL - Denmark TA - Clin Transplant JT - Clinical transplantation JID - 8710240 RN - 69G8BD63PP (Bortezomib) RN - 80295-33-6 (Complement C1q) RN - 0 (Antibodies) RN - 0 (Immunoglobulins, Intravenous) RN - 0 (HLA Antigens) RN - 0 (Isoantibodies) SB - IM MH - Humans MH - Bortezomib/therapeutic use MH - *Complement C1q MH - Antibodies MH - Immunoglobulins, Intravenous/therapeutic use MH - *Heart Transplantation MH - HLA Antigens MH - Desensitization, Immunologic/methods MH - Graft Rejection/drug therapy/etiology MH - Isoantibodies OTO - NOTNLM OT - alloantibody OT - antibody-mediated (ABMR) OT - desensitization OT - immunosuppressant OT - other OT - rejection EDAT- 2023/01/21 06:00 MHDA- 2023/04/12 06:42 CRDT- 2023/01/20 06:33 PHST- 2023/01/01 00:00 [revised] PHST- 2022/09/20 00:00 [received] PHST- 2023/01/02 00:00 [accepted] PHST- 2023/04/12 06:42 [medline] PHST- 2023/01/21 06:00 [pubmed] PHST- 2023/01/20 06:33 [entrez] AID - 10.1111/ctr.14907 [doi] PST - ppublish SO - Clin Transplant. 2023 Apr;37(4):e14907. doi: 10.1111/ctr.14907. Epub 2023 Feb 2.