Summary
RECRUITMENT
Semi-structured interviews will be conducted with three groups: trial participants; women who were eligible but unwilling to participate in the trial; and clinical staff involved in trial recruitment and intervention delivery. Interviews will explore the acceptability of intervention (participants); views on trial procedures and study conduct including outcome measures (participants and clinicians) and acceptability of randomisation (participants); views on barriers and facilitator to participation in the trial (participants, those unwilling to participate and clinicians); reasons for attrition (participants and clinicians); and identify strategies to optimise recruitment and retention for the definitive trial (participants, clinicians and those unwilling to participate). We will follow recent guidance regarding the effective use of qualitative research in feasibility studies for RCTs [