Characteristics and outcomes of elderly patients with acute myeloid leukemia who receive no treatment in the Surveillance, Epidemiology and End Results-Medicare database

Impact of aging on acute myeloid leukemia epidemiology and survival outcomes: A real-world, population-based longitudinal cohort study

Acute myeloid leukemia (AML) is a severe and fatal form of leukemia that is prevalent in the older population. In this longitudinal retrospective study, we investigated the epidemiology and survival rates of patients diagnosed with de novo acute myeloid leukemia in South Korea from Jan 1, 2011, to Aug 31, 2020. We used real-world data from the Health Insurance Review and Assessment Service database. We observed an increase in the number of acute myeloid leukemia cases, with age-specific incidence rates escalating in older patients. In contrast a long-term decrease from 1.94 to 1.77 per 100,000 individuals was found in the age-standardized incidence rates. Meanwhile, age-standardized prevalence rates ascended from 8.93 to 9.67 per 100,000 individuals, with a remarkable increase in the age-specific prevalence rate for those aged 80 years and above. Survival rates were notably better in younger or treated patients, and in those who underwent Hematopoietic stem cell transplantation. The time of diagnosis did not affect the survival of patients younger than 65 years. However, the most recent survival rates were significantly lower for patients 65 or older, as shown in the unadjusted Cox survival analysis. After adjustments in the analysis, it was found that the overall survival rates of the most recently diagnosed group improved significantly compared with those diagnosed earlier, with a hazard ratio of 0.90 (95% confidence interval, 0.84-0.97). This improvement may potentially be influenced by the enhanced treatment alternatives available for newly diagnosed older patients aged 65 years or older. In conclusion, aging appears to fuel an increase in the number of acute myeloid leukemia cases and mortality. Further studies are warranted to understand the impact of aging on acute myeloid leukemia treatment outcomes and devise efficacious care strategies for older patients.

Telehealth serious illness care program for older adults with hematologic malignancies: a single-arm pilot study

ABSTRACT

Older patients with acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) feel shocked and bewildered when diagnosed. Serious illness conversations (SICs) may increase disease understanding and preparations for the future. However, SICs often happen late, in part because of clinician-perceived patient discomfort. Telehealth may promote patient comfort by allowing SICs to take place at home. This study assesses the feasibility and usability of a telehealth-delivered Serious Illness Care Program (SICP) for older adults with AML and MDS. We conducted a single-arm pilot study including 20 older adults with AML and MDS. Feasibility was measured using retention rate, with >80% considered feasible. Usability was measured using telehealth usability questionnaire (TUQ; range, 1-7): >5 considered usable. We collected other outcomes including acceptability and disease understanding and conducted post-visit qualitative interviews to elicit feedback. Hypothesis testing was performed at α = 0.10 owing to the pilot nature and small sample size. Retention rate was 95% (19/20); mean TUQ scores were 5.9 (standard deviation [SD], 0.9) and 5.9 (SD, 1.1) for patients and caregivers, respectively. We found the SICP to be acceptable. The majority of patients found the SICP to be very or extremely worthwhile (88.2%; 15/17), and reported it increased closeness with their clinician (75.0%; 12/16). After their visit, patient estimates of curability, and overall life expectancy aligned more closely with those of their clinicians. In qualitative interviews, most patients said that they would recommend this program to others (89.5%, 17/19). This study demonstrated that delivery of the telehealth SICP to older patients with AML and MDS is feasible, usable, and acceptable. This trial is registered at www.clinicaltrials.gov as #NCT04745676.

Elderly patients with acute myeloid leukemia who only receive supportive care in the Surveillance, Epidemiology and End Results-Medicare database: demographics, treatment patterns and outcomes

Aim: Elderly acute myeloid leukemia (AML) patients are often not treated with antileukemic therapy due to their poor overall health condition, leaving supportive care as the sole treatment option. Objective: To evaluate patient characteristics, treatment patterns and outcomes of elderly patients with AML who are treated with supportive care only. Methods: A retrospective analysis of elderly AML patients included in the Surveillance, Epidemiology and End Results-Medicare database from 2008 to 2015. Results: Of elderly patients with AML (n = 7665), 3209 (41.9%) received supportive care only. Their mean age was 79 years, 50.5% were males; 48.2% died during the first 3 months and 67.3% died during the first 6 months. 82.2% died within the first year; only 13.2% survived >12 months. 77.9% patients died due to leukemia. Conclusion: In elderly AML patients treated with supportive care only, older age, concurrent hypertension, chronic obstructive pulmonary disease, chronic kidney disease and acute myocardial infarction were identified as prognostic factors associated with decreased likelihood of survival. Ideally, these patients should be treated with antileukemic therapy in addition to supportive care, as most of them die from disease progression.