Barriers and enablers to recruiting participants within paediatric perioperative and anaesthetic settings: lessons learned from a trial of melatonin versus midazolam in the premedication of anxious children (the MAGIC trial)

Background: Poor recruitment is one key reason for premature closure of randomised controlled trials.The Melatonin for Anxiety prior to General Anaesthesia In Children (MAGIC) trial was a multicentre randomised controlled trial of melatonin vs midazolam in the premedication of anxious children, before surgery.The trial ran between 2019 and 2022, cl

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