PMID- 36127509 OWN - NLM STAT- MEDLINE DCOM- 20221031 LR - 20230502 IS - 1476-5551 (Electronic) IS - 0887-6924 (Print) IS - 0887-6924 (Linking) VI - 36 IP - 11 DP - 2022 Nov TI - Impact of conditioning chemotherapy on lymphocyte kinetics and outcomes in LBCL patients treated with CAR T-cell therapy. PG - 2669-2677 LID - 10.1038/s41375-022-01704-z [doi] AB - Conditioning chemotherapy (CCT) has been shown to be essential for optimal efficacy of chimeric antigen receptor (CAR) T-cell therapy. Here, we determined whether the change in absolute lymphocyte count, referred to as delta lymphocyte index (DLIx), may serve as a surrogate marker for pharmacodynamic effects of CCT and whether it associated with germline genetic variants in patients with large B-cell lymphoma (LBCL). One-hundred and seventy-one patients were included, of which 86 (50%) received bridging therapy post-leukapheresis. Median DLIx was 0.5 x 10(9)/L (range, 0.01-2.75 x 10(9)/L) and was significantly higher in patients who achieved complete response (p = 0.04). On multivariate analysis, low DLIx was associated only with use of bridging therapy (odds ratio 0.4, 95% CI 0.2-0.8, p = 0.007). Low DLIx was independently associated with shorter progression-free (p = 0.02) and overall survival (p = 0.02). DLIx was associated with genetic variations related to drug metabolism and macrophage biology such as ABCB1, MISP and CPVL. The impact of CCT on lymphocyte count is affected by use of bridging therapy but change in lymphocyte count is independently associated with efficacy. Studies aimed at investigating macrophage biology in this setting may suggest strategies to increase the efficacy of CCT and improve outcomes. CI - (c) 2022. The Author(s), under exclusive licence to Springer Nature Limited. FAU - Strati, Paolo AU - Strati P AUID- ORCID: 0000-0002-7445-1459 AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. pstrati@mdanderson.org. AD - Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. pstrati@mdanderson.org. FAU - Jallouk, Andrew P AU - Jallouk AP AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Sun, Ryan AU - Sun R AD - Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Choi, Jaihee AU - Choi J AD - Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Das, Kaberi AU - Das K AUID- ORCID: 0000-0003-4702-0386 AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Cherng, Hua-Jay AU - Cherng HJ AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Ahmed, Sairah AU - Ahmed S AUID- ORCID: 0000-0001-7302-8299 AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Lee, Hun J AU - Lee HJ AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Iyer, Swaminathan P AU - Iyer SP AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Nair, Ranjit AU - Nair R AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Nastoupil, Loretta J AU - Nastoupil LJ AUID- ORCID: 0000-0001-6071-8610 AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Steiner, Raphael E AU - Steiner RE AUID- ORCID: 0000-0003-3717-3629 AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Huff, Chad D AU - Huff CD AD - Department of Epidemiolog, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Yu, Yao AU - Yu Y AD - Department of Epidemiolog, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Mistry, Haleigh AU - Mistry H AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Pulsifer, Brittany AU - Pulsifer B AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Noorani, Mansoor AU - Noorani M AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Saini, Neeraj AU - Saini N AD - Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Shpall, Elizabeth J AU - Shpall EJ AD - Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Kebriaei, Partow AU - Kebriaei P AUID- ORCID: 0000-0002-8607-9404 AD - Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Flowers, Christopher R AU - Flowers CR AUID- ORCID: 0000-0002-9524-3990 AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Westin, Jason R AU - Westin JR AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Hildebrandt, Michelle A T AU - Hildebrandt MAT AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Neelapu, Sattva S AU - Neelapu SS AUID- ORCID: 0000-0003-1045-4914 AD - Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. LA - eng GR - P30 CA016672/CA/NCI NIH HHS/United States GR - R21 CA259694/CA/NCI NIH HHS/United States GR - T32 CA009666/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20220920 PL - England TA - Leukemia JT - Leukemia JID - 8704895 RN - 0 (Antigens, CD19) SB - IM MH - Humans MH - *Immunotherapy, Adoptive/adverse effects MH - Antigens, CD19 MH - Neoplasm Recurrence, Local/drug therapy MH - Leukapheresis MH - Lymphocytes/pathology MH - *Lymphoma, Large B-Cell, Diffuse/pathology PMC - PMC9904360 MID - NIHMS1869227 EDAT- 2022/09/21 06:00 MHDA- 2022/11/01 06:00 PMCR- 2023/05/01 CRDT- 2022/09/20 23:31 PHST- 2022/02/08 00:00 [received] PHST- 2022/09/09 00:00 [accepted] PHST- 2022/09/05 00:00 [revised] PHST- 2022/09/21 06:00 [pubmed] PHST- 2022/11/01 06:00 [medline] PHST- 2022/09/20 23:31 [entrez] PHST- 2023/05/01 00:00 [pmc-release] AID - 10.1038/s41375-022-01704-z [pii] AID - 10.1038/s41375-022-01704-z [doi] PST - ppublish SO - Leukemia. 2022 Nov;36(11):2669-2677. doi: 10.1038/s41375-022-01704-z. Epub 2022 Sep 20.