A patient-reported outcome (PRO) constitutes information about symptom severity, disease state, and change from a previous measure that comes directly from patients.
1,2 PROs provide evidence for evaluating the disease status or changes during treatment.
3 Rigorously captured PRO results of trials have substantial implications for pharmaceutical labeling claims,
4 product reimbursement,
3 and decision-making on medicine use,
5 and may even be factors in health care policy.
5 PROs have been widely used to understand the perspective of patients in randomized clinical trials
5 and clinical practice
6 and have several advantages, including being noninvasive, patient-centered, and easily accessed.
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