Clinical management of Australian adolescents and young adults with acute lymphoblastic and myeloid leukemias: A national population-based study

BACKGROUND

While several studies have examined the treatment of adolescents and young adults (AYAs) with acute lymphoblastic leukemia (ALL), studies of acute myeloid leukemia (AML) are rare. Using national data for Australia, we describe (i) the number and type of treatment centers caring for AYAs, (ii) induction/first-line treatments, and (iii) survival outcomes.

PROCEDURE

National population-based study assessing treatment of 15- to 24-year-olds diagnosed with ALL or AML between 2007 and 2012. Treatment details were abstracted from hospital medical records. Treatment centers were classified as pediatric or adult (adult AYA-focused or other adult; and by AYA volume [high/low]). Cox proportional hazard regression analyses examined associations between treatment and overall, event-free, and relapse-free survival outcomes.

RESULTS

Forty-seven hospitals delivered induction therapy to 351 patients (181 ALL and 170 AML), with 74 (21%) treated at pediatric centers; 70% of hospitals treated less than two AYA leukemia patients per year. Regardless of treatment center, 82% of ALL patients were on pediatric protocols. For AML, pediatric protocols were not used in adult centers, with adult centers using a non-COG 7+3-type induction protocol (51%, where COG is Cooperative Oncology Group) or an ICE-type protocol (39%, where ICE is idarubicin, cytarabine, etoposide). Exploratory analyses suggested that for both ALL and AML, AYAs selected for adult protocols have worse overall, event-free, and relapse-free survival outcomes.

CONCLUSIONS

Pediatric protocols were commonly used for ALL patients regardless of where they are treated, indicating rapid assimilation of recent evidence by Australian hematologists. For AML, pediatric protocols were only used at pediatric centers. Further investigation is warranted to determine the optimal treatment approach for AYA AML patients.

Developmentally appropriate care for adolescents and young adults with cancer: how well is Australia doing?

PURPOSE

Developmentally appropriate care underpins quality cancer treatment. This study aimed to describe how well Australian cancer services deliver patient-focussed, developmentally appropriate care to adolescents and young adults (AYAs) with cancer.

METHODS

In a national, cross sectional study, 196 AYAs with cancer aged between 15 and 25 years at diagnosis reported their general experiences of the cancer care team (Cancer Needs Questionnaire), access to age-appropriate treatment environments (Cancer Needs Questionnaire) and frequency of psychosocial assessment (Adolescent Friendly Hospital Survey).

RESULTS

Very positive responses were reported around engagement and communication with staff who were reported as approachable, friendly and trustworthy; 11 of the 14 items were positively rated by over 90% of respondents. In contrast, over 70% of AYAs expressed unmet need around their physical and social environments, whether in relation to the opportunity to be nursed in wards designed for AYAs, spend time with other young people with cancer, or talk to young people their own age; less than a third reported their needs had been met on the majority of these items. The frequency that specific psychosocial assessment domains were discussed was highly variable; responses suggested that AYAs were less commonly questioned about overtly sensitive topics. AYAs who experienced private consultations with health care providers (41%) were significantly more likely to experience thorough psychosocial assessment.

CONCLUSION

Australian cancer services are generally communicating well with AYAs. There is room for improvement around more developmentally specific aspects of healthcare quality, such as psychosocial assessment, and around treatment environments that promote greater social interaction between AYAs.