Table 1 Inclusion and exclusion criteria

Enrolled in a prospective (observational or interventional) clinical study that required the provision of consent

Involved in a retrospective study or did not need to provide consent

Clinical study focuses on a life-threatening condition

Not a life-threatening condition

Data from study participant or their caregiver/relative/surrogate/parent/guardian

Data from anyone else

Qualitative or mixed-methods study

Exclusively quantitative analysis

Semi-structured or in-depth interview, focus group, ethnography, observation, diaries

Self-administered, short answer or structured questionnaire, multiple-choice answer survey

Data relating to the trial experience

Data focusing on the intervention, data for secondary outcomes, e.g. acceptability

Full-length, original research paper

Abstracts, poster, conference proceeding, viewpoint, commentary

English

Not in English