PMID- 38431522 OWN - NLM STAT- Publisher LR - 20240302 IS - 2152-2669 (Electronic) IS - 2152-2669 (Linking) DP - 2024 Feb 14 TI - Treatment Pattern, Healthcare Resource Utilization and Symptom Burden Among Patients with Triple Class Exposed Multiple Myeloma: A Population-Based Cohort Study. LID - S2152-2650(24)00065-X [pii] LID - 10.1016/j.clml.2024.02.006 [doi] AB - PURPOSE: This study aims to describe the treatment patterns, outcomes, health care utilization and symptom burden of triple class exposed (TCE) relapsed/refractory patents with multiple myeloma (MM) receiving a subsequent line of treatment (LOT). METHODS: This is a retrospective observational cohort study using administrative databases in Ontario, Canada. Outcomes were captured for TCE patients receiving a subsequent LOT and included: treatment regimen details, time to next treatment (TTNT), overall survival (OS), health care utilization, palliative care referral, and patient reported symptoms. RESULTS: Of the 16,777 patients diagnosed with MM between 2007-2021 in Ontario, 1358 (8%) patients were classified as TCE. Among the TCE MM patients, 489 (36%) received a subsequent LOT. The two most commonly administered therapies post TCE were carfilzomib/dexamethasone (n = 111, 22%) and pomalidomide/dexamethasone(n = 95, 19%). Median TTNT was 1.7 months (95%CI 1.2-2.4 months) and median OS 12.8 months (95%CI 10.8-16.5). Healthcare utilization was high with 276 (56%) of patients evaluated in an emergency department (ED) or admitted to hospital. There was high symptom burden as reported by patients with moderate-severe impairment in well-being, fatigue, pain and drowsiness noted in greater than 25% of the cohort. Palliative care referrals rates were low with only 10% (n = 48) patients referred to palliative care. Among the patients that died during study follow up, the majority died in hospital (n = 147,44%). CONCLUSION: Our study reports one of the largest series of real-world TCE patients published and demonstrates the poor outcomes of TCE patients receiving a subsequent LOT. CI - Copyright (c) 2024. Published by Elsevier Inc. FAU - Mian, Hira AU - Mian H AD - Department of Oncology, McMaster University, 699 Concession Street, Hamilton, Ontario L8V 5C2, Canada. Electronic address: hira.mian@medportal.ca. FAU - Seow, Hsien AU - Seow H AD - Department of Oncology, McMaster University, 699 Concession Street, Hamilton, Ontario L8V 5C2, Canada. FAU - Pond, Gregory R AU - Pond GR AD - Department of Oncology, McMaster University, 699 Concession Street, Hamilton, Ontario L8V 5C2, Canada. FAU - Gayowsky, Anastasia AU - Gayowsky A AD - ICES, McMaster University, 1290 Main Street West, HSC 4N43, Hamilton, Ontario L8S 4K1, Canada. FAU - Foley, Ronan AU - Foley R AD - Department of Oncology, McMaster University, 699 Concession Street, Hamilton, Ontario L8V 5C2, Canada. FAU - Balistky, Amaris AU - Balistky A AD - Department of Oncology, McMaster University, 699 Concession Street, Hamilton, Ontario L8V 5C2, Canada. FAU - Ebraheem, Mohammed AU - Ebraheem M AD - Department of Oncology, McMaster University, 699 Concession Street, Hamilton, Ontario L8V 5C2, Canada. FAU - Cipkar, Christopher AU - Cipkar C AD - Department of Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, Ontario K1H 8M5, Canada. FAU - Sapru, Hyra AU - Sapru H AD - Department of Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, Ontario K1H 8M5, Canada. FAU - Mohyuddin, Ghulam Rehman AU - Mohyuddin GR AD - Department of Medicine, University of Utah, 27 S Mario Capecchi Dr, Salt Lake City, Utah 84113, USA. FAU - Hadidi, Samer Al AU - Hadidi SA AD - Department of Medicine, University of Arkansas for Medical Sciences, 4301 W Markham St, Little Rock, Arkansas 72205, USA. FAU - Visram, Alissa AU - Visram A AD - Department of Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, Ontario K1H 8M5, Canada. LA - eng PT - Journal Article DEP - 20240214 PL - United States TA - Clin Lymphoma Myeloma Leuk JT - Clinical lymphoma, myeloma & leukemia JID - 101525386 SB - IM OTO - NOTNLM OT - Burden of care OT - Health services OT - Hematologic malignancies OT - Quality of life OT - Relapsed/Refractory COIS- Declaration of competing interest None. EDAT- 2024/03/03 17:42 MHDA- 2024/03/03 17:42 CRDT- 2024/03/02 21:57 PHST- 2024/01/09 00:00 [received] PHST- 2024/02/09 00:00 [accepted] PHST- 2024/03/03 17:42 [medline] PHST- 2024/03/03 17:42 [pubmed] PHST- 2024/03/02 21:57 [entrez] AID - S2152-2650(24)00065-X [pii] AID - 10.1016/j.clml.2024.02.006 [doi] PST - aheadofprint SO - Clin Lymphoma Myeloma Leuk. 2024 Feb 14:S2152-2650(24)00065-X. doi: 10.1016/j.clml.2024.02.006.