Macey obtained her undergraduate degree in Medical Biochemistry from the University of Surrey. She then worked in phase I-III clinical trials units in industry and academia, spending five years coordinating large international breast cancer trials at Imperial College London.

Between 2003 and 2015, Macey was a research assistant, then promoted to a Teaching and Research Fellow at the Centre for Paediatric Pharmacy Research (CPPR) based at the School of Pharmacy, University of London. The Centre began in 2002 as a fruitful collaboration between the School, the Institute of Child Health, and Great Ormond Street Hospital for Children, to focus research activities specifically in paediatric pharmacy. In September 2009, Macey was awarded her PhD, and became acting lead of the Pharmacoepidemiology and Drug Safety team in August 2011. During her time as team lead, Macey represented the School in the European Network of Centres for Pharmacoepidemiology and Pharmacovigilance (ENCePP), participating in the Working Group on Guidance for Data Integration; the guidance was later incorporated into the ENCePP’s guide on methodological standards.

In 2015, Macey joined the Comprehensive Clinical Trials Unit (CCTU) to manage a large UK multicentre trial in sexual health (HIPvac) in collaboration with the Mortimer Market Centre. Following the successful completion of HIPvac in 2018, Macey moved teams to set up the CCTU’s largest ever trial to date (OPTIMAS) which aims to recruit approx. 3500 patients with acute ischaemic stroke and atrial fibrillation from >100 hyperacute and acute stroke units in the UK.

Macey began working at the MRC Clinical Trials Unit in September 2019, funded by HDR UK. Her post within the Trial Conduct Methodology team enables Macey to bring together her extensive experience and knowledge to develop ways to improve access, quality and use of electronic healthcare records to enhance the conduct of clinical trials.