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The older American population is rapidly increasing, and millions of older adults will be cancer survivors with comorbidities. This population faces specific challenges regarding treatment and has unique clinical needs. Recognizing this need, the National Cancer Institute, in collaboration with the National Institute on Aging, hosted a webinar series, entitled Cancer, Aging, and Comorbidities. This commentary provides a reflection of 5 thematic areas covered by the webinar series, which was focused on improving cancer treatment for older adults with cancer and comorbidities: 1) the impact of comorbidities on treatment tolerability and patient outcomes; 2) the impact of comorbidities on cancer clinical trial design; 3) the development of wearable devices in measuring comorbidities in cancer treatment; 4) the effects of nutrition and the microbiome on cancer therapy; and 5) the role of senescence and senotherapy in age-related diseases. Advances have been made in these areas, however, many gaps and challenges exist and are discussed in this commentary. To improve cancer survivorship in older populations with comorbidities, aging and comorbidities must be jointly considered and incorporated across the spectrum of cancer research. This includes more basic research of the mechanisms linking comorbidities and cancer development and treatment response, building critical resources and infrastructure (eg, preclinical models and patient samples), conducting clinical trials focused on the older population, integrating geriatric assessment into cancer treatment, and incorporating novel technologies, such as wearable devices, into clinical trials and cancer care. [ABSTRACT FROM AUTHOR]

The authors comment on a study published in this issue of the journal which examined oral nutritional interventions in malnourished cancer patients or those at risk for malnutrition. According to the authors, the study failed to address the value of improved quality of life (QOL) to patients. The authors suggest the adoption of a common QOL scale. They also stress the importance of choosing the right patient for nutritional interventions in everyday practice and the clinical research setting.

The standard approach for documenting symptomatic adverse events (AEs) in cancer clinical trials involves investigator reporting using the National Cancer Institute's (NCI's) Common Terminology Criteria for Adverse Events (CTCAE). Because this approach underdetects symptomatic AEs, the NCI issued two contracts to create a patient-reported outcome (PRO) measurement system as a companion to the CTCAE, called the PRO-CTCAE. This Commentary describes development of the PRO-CTCAE by a group of multidisciplinary investigators and patient representatives and provides an overview of qualitative and quantitative studies of its measurement properties. A systematic evaluation of all 790 AEs listed in the CTCAE identified 78 appropriate for patient self-reporting. For each of these, a PRO-CTCAE plain language term in English and one to three items characterizing the frequency, severity, and/or activity interference of the AE were created, rendering a library of 124 PRO-CTCAE items. These items were refined in a cognitive interviewing study among patients on active cancer treatment with diverse educational, racial, and geographic backgrounds. Favorable measurement properties of the items, including construct validity, reliability, responsiveness, and between-mode equivalence, were determined prospectively in a demographically diverse population of patients receiving treatments for many different tumor types. A software platform was built to administer PRO-CTCAE items to clinical trial participants via the internet or telephone interactive voice response and was refined through usability testing. Work is ongoing to translate the PRO-CTCAE into multiple languages and to determine the optimal approach for integrating the PRO-CTCAE into clinical trial workflow and AE analyses. It is envisioned that the PRO-CTCAE will enhance the precision and patient-centeredness of adverse event reporting in cancer clinical research. [ABSTRACT FROM AUTHOR]