Collaboration is key to bridging the AYA cancer care divide

As Dr Hanna noted, biological differences and changes over time suggest that different age groups need varying approaches to treatment and that they may have different outcomes with the same treatments.

For example, the biology of AML is known to change with age, Dr O'Dwyer and her colleagues noted,³ citing a recent European study of 5,564 patients with de novo AML that showed that the frequency of favorable cytogenetics was low in infants (13.7%), increased in children (25%) and young adults (44%), and decreased again in middle age and older patients.¹⁰

“Most unfavorable cytogenetic abnormalities are rare across all age groups, though complex cytogenetics are relatively more frequent in infants, decrease in frequency in AYAs, and then increase in frequency beyond AYA,” Dr O'Dwyer and her colleagues wrote.³ It was also becoming more apparent that age influences the presence of AML-related molecular abnormalities, and recognition of age-related differences in disease biology “will provide the best opportunity to improve the clinical outcomes that have been static for decades.”

Dr Boissel and Dr Baruchel also noted in their report that light was finally being shed on the “black hole” of understanding ALL biology in AYAs, and research has shown that there is a continuum between childhood and adult ALL.¹ They concluded that “risk stratification based on recent biology findings and sequential [minimum residual disease] evaluations should now be implemented, as well as new therapeutic options including immunotherapy and targeted therapies, at best within the setting of integrated pediatric and AYA protocols.”
 

Psychosocial factors

“Cancer is a non-normative event for AYAs. It is extremely disruptive to them physically, psychologically, and vocationally ... and this poses significant challenges,” John Salsman, PhD, director of clinical research in AYA oncology at Wake Forest University, Winston-Salem, NC, said in an interview.

These patients have 5-year survival rates that haven’t improved in tandem with those in pediatric and adult populations over the last 3 decades, and in addition to the financial toxicity and strain, they also have higher rates of depression and anxiety, including fear of recurrence, he added. “Quality of life is incredibly important, and these things need to be addressed because of the developmental changes AYAs are navigating; there are issues of positive body image, family and career decisions ... these are challenging for anyone, and when you throw a cancer diagnosis into the mix they become disproportionately so.”

In a 2014 study, Dr Salsman and his colleagues found that AYAs with cancer had poorer physical and emotional quality of life when compared with matched controls, but better social quality of life.¹¹ The latter finding was surprising and highlights the importance of the social dimension in the lives of AYAs. “Patient after patient will say ‘I found out who my real friends are,’  ” he said. “There’s this refinement and deepening of the social network among some posttreatment survivors.”

Dr Salsman and his colleagues are using those findings to develop interventions that can maximize self-care in posttreatment survivorship – a time when AYAs may feel they have a new lease on life and may be more motivated to adhere to recommendations and take care of themselves. For example, a randomized controlled pilot study that incorporates social media apps and other technologies to build on the positive social components of their lives in promoting physical activity interventions is underway.

Another intervention targets emotional well-being through the use of web-based tools to increase positive affect. A proof-of-concept study showed that the approach was feasible and well received, and a larger-scale randomized controlled trial is being planned, he said.

Dr Salsman also praised the PRISM (Promoting Resilience in Stress Management) tool developed by researchers at Seattle Children’s Hospital. It was created to help AYAs with cancer and other illnesses learn coping skills to manage stress after their diagnosis and to boost quality of life beyond treatment. A digital app has also been developed to be used in conjunction with the program.