A large gap exists between eligibility and the frequency with which consent encounters occur in intensive care unit research. Recruitment is susceptible to design and procedural inefficiencies that hinder recruitment and to personnel availability, given the need to interact with SDMs. Current enrollment practices may underrepresent potential study populations.

Our findings document the presence and extent of practice variation in ventilator weaning on an international scale, and highlight the multidisciplinary and collaborative nature of weaning.

Whereas research personnel and administrators support participation in pandemic ICU research, several modifiable barriers to participation exist. Pandemic research preparedness planning with regulatory bodies and dedicated funding to support research infrastructure, especially in community settings, are required to optimize future pandemic research participation.

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