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\\xb7\\xa0\\xa0\\xa0\\xa0\\xa0\\xa0 The authors conclude that adverse events of all grades, especially symptomatic adverse events, should be recorded regularly in cancer clinical trials. Formal patient reported outcomes are not typically collected as frequently as adverse events are recorded, so identifying patients with a high number of lower grade adverse events could be used to facilitate early supportive care to improve patient quality of life and reduce the likelihood for treatment discontinuation.
\\xb7\\xa0\\xa0\\xa0\\xa0\\xa0\\xa0 They also highlight their result identifying lower odds of treatment discontinuation with larger numbers of grade 1 adverse events. They provide one explanation that patients may perceive grade 1 adverse events being associated with treatment efficacy, but this perception changes with higher grades.\\xa0 In their call to collect more lower grade adverse events, the authors acknowledge that recording more adverse events may be time-consuming and burdensome for sites and recommend cost-benefit analyses to develop future guidelines.
\\xb7\\xa0\\xa0\\xa0\\xa0\\xa0\\xa0 This balance between the benefits and costs of increased adverse event data collection is the focus of Dr. Neuman\\u2019s editorial. Dr. Neuman acknowledges that Dr. O\\u2019Connell\\u2019s article provides a convincing argument for how low grade adverse event information is valuable, but notes the clinical trial context that current efforts at the NCI are to more efficiently conduct cancer research, which could be supported by streamlining data collection.
\\xb7\\xa0\\xa0\\xa0\\xa0\\xa0\\xa0 Requiring the collection of low grade adverse events could have important impacts to trial logistics. Due to the high volume of low grade adverse events, reporting all low grade events could delay reporting higher grade and more serious adverse events; and it would require an increase in the effort of clinical trial research staff, which would be difficult if not accompanied by an increase in reimbursement to sites.
\\xb7\\xa0\\xa0\\xa0\\xa0\\xa0\\xa0 Dr. Neuman suggests 3 approaches to balance the costs and benefits of collecting low and moderate grade adverse events. First, investigators could consider limiting low-grade adverse event reporting to the experimental arm. The standard of care regimens may not always have low-grade adverse event data available, but this may still be justified when there is extensive clinical experience with the standard of care. However, this approach is only practical when the experimental arm is not blinded.
\\xb7\\xa0\\xa0\\xa0\\xa0\\xa0\\xa0 A second approach for moderating the effort in collecting low-grade adverse events is to limit collection to symptomatic adverse events, connecting with Dr. O\\u2019Connell\\u2019s example E1912 dataset. This approach could be addressed by prespecifying types of symptomatic adverse events that would be most impactful during the trial design phase.
\\xb7\\xa0\\xa0\\xa0\\xa0\\xa0\\xa0 Dr. Neuman\\u2019s third suggestion is to plan for a follow-up study after the phase 3 trial to collect low-grade adverse event data and their impact on patients\\u2019 experiences and treatment discontinuation. This would be beneficial by only requiring low-grade adverse events in an experimental regimen that has successfully passed phase 3. However, a new study would require funding and site enthusiasm, which could prove challenging.
\\xb7\\xa0\\xa0\\xa0\\xa0\\xa0\\xa0 Overall, Dr. Neuman emphasizes that investigators should develop trial-specific considerations and engage with the relevant stakeholders during study design. Because of the complexity of adverse events in these patient populations, the best uses of grade 1-2 adverse events will likely continue to develop in the future. In their article, Dr. O\\u2019Connell\\u2019s team studied grade 1 and 2 adverse events as separate predictors, but I would be curious to know how the accumulation and trajectory of these adverse events affect the patient experience. For example, even if the severity does not rise to grade 3, an increasing trend in a patient\\u2019s adverse event severities could signal the treating physician to modify study dose or to discontinue the treatment. I\\u2019m not sure if that type of information was available in their trial E1912, but perhaps that could be a factor to consider for the future. And, of course, it will be important to assess how these grade 1-2 adverse events relate to the patient experience in different studies, especially across different cancer patient populations, acknowledging that this is inherently challenging to study because the data to inform this research is not universally available. As Dr. Neuman indicates, trial-specific goals and expertise will remain critical when considering the data collection for a given trial.\\xa0
That concludes this episode of JCO Article Insights regarding a summary of the article \\u201cThe Importance of Low and Moderate Grade Adverse Events on Patients\\u2019 Treatment Experience and Treatment Discontinuation\\u201d by Dr. O\\u2019Connell and colleagues and the editorial entitled \\u201cPatient Experience, Adverse Event Reporting, and Clinical Trial Design\\u201d by Dr. Neuman. This is Subodh Selukar. Thank you for your attention and stay tuned for the next episode of JCO Article Insights.
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Original Report:\\xa0\\xa0
Find more articles from the\\xa0June\\xa01 issue
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