Recalling what we thought we knew about recall periods: a qualitative descriptive study of how adults diagnosed with cancer use recall periods for patient-reported outcome items about physical function.

Objectives: In cancer studies, assessment of patients' physical function can provide insight into cancer-related symptoms and the side effects of treatment. Physical function can be assessed using patient-reported outcome measures (PROMs), which may or may not include a recall period-the amount of time the questionnaire asks the respondent to think back to answer the questions. More understanding is needed about how patients interpret and respond to items posed with different recall periods, and which recall period they actually use.

What facets of physical function are most important to adults diagnosed with cancer?

Purpose: Successful patient-focused drug development involves selecting and measuring outcomes in clinical trials that are important to patients. The U.S.

Facets of physical function assessed by patient-reported outcome measures in oncology research.

Purpose: The U.S. Food & Drug Administration has identified physical functioning (PF) as a core patient-reported outcome (PRO) in cancer clinical trials.

Expectations of preventative benefits and risk behaviors in a randomized trial evaluating oral HIV preexposure prophylaxis candidates.

When participants enrolled in an HIV prevention trial hold a preventive misconception (PM) - expectations that experimental interventions will confer protection from HIV infection - they may engage in behaviors that increase their risk of acquiring HIV. This can raise ethical concerns about whether those enrolled in the trial understand the nature of participation and their safety. Consequently, we systematically evaluated the prevalence of PM and its association with risk behaviors in a trial examining three candidate regimens for oral HIV pre-exposure prophylaxis in which all participants received at least one antiretroviral agent.