Abstract
The outcomes of allogeneic hematopoietic cell transplantation (HCT) in older patients are not well defined. We retrospectively analyzed the outcomes of 332 patients, with the median age of 65 years (range, 60–76), between 2014 and 2019. We categorized them to 3 age groups (G): G1, 60–65 years (n = 175); G2, > 65–70 years (n = 127); and G3, > 70 years (n = 30). The median length of hospitalization during the initial HCT period was 30 days, with a significant difference when stratified by age (p = 0.049). Overall, 183 (58.7%) patients were re-hospitalized within the first 6 months post HCT, and 60 (21.6%) in the second 6-month period. The 2-year OS was 56% in G1, 53% in G2, and 34% in G3 (p = 0.05). The 2-year event-free survival (EFS) was 54% for G1, 49% for G2, and 31% for G3 (p = 0.04). Non-relapse mortality (NRM) at 2 years was 25% in G1, 36% in G2, and 52% in G3 (p = 0.008). In multivariable analysis, patients aged 60–65 years had significantly better EFS (p = 0.04) and had a trend toward lower NRM (p = 0.05) than those aged > 70 years. Re-admission in the first 6 months post HCT had a significant impact on OS, EFS, and NRM. HCT-specific comorbidity index > 3 had significantly affected NRM. Finally, age had a significant influence on length of hospitalization during HCT. In conclusion, patients aged > 70 years have an inferior EFS and higher NRM. This likely related to higher rate of re-admissions due to infectious complications (84%).
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Data Availability
The datasets generated and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Eshrak Al-Shaibani and Rajat Kumar collected the data, interpreted the results, and wrote the paper. Shiyi Chen contributed to the study design and statistical analysis. Carol Chin collected the data. Fotios V. Michelis, Wilson Lam, Arjun Law, Igor Novitzky Basso, Armin Gerbitz, Dennis D. Kim, Auro Viswabandya, Jeffrey H. Lipton, and Jonas Mattson provided the valuable input into the interpretation and reviewed the manuscript.
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Highlights
1. HCT appears to be effective and tolerable in selected patients, with comparable OS rate among the three age groups.
2. There is a trend toward longer length of hospitalization during HCT with increasing patient age, and patients aged > 70 years had inferior NRM and EFS compared to younger individuals.
3. There was an association between higher HCT-CI with NRM. Causes for re-admission in the first 6 months were due to infections (71%) and GvHD (16%), and these had significant impact on the outcomes post HCT.
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Al-Shaibani, E., Chen, S., Chen, C. et al. Impact of age on hospitalization and outcomes post allogeneic hematopoietic cell transplantation outcome, a single center experience. Ann Hematol 102, 917–926 (2023). https://doi.org/10.1007/s00277-023-05135-3
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DOI: https://doi.org/10.1007/s00277-023-05135-3