Bonnie Cundill

Bonnie Cundill


I joined the Clinical Trials Research Unit (CTRU) as Principal Statistician in 2014, following positions as a Lecturer in Medical Statistics and Epidemiology at LSHTM and Statistical Officer at the Department of Health. I obtained a BSc. (Hons) in Mathematics & Statistics from the University of Glasgow in 2001 and an MSc in Medical Statistics from the London School of Hygiene and Tropical Medicine (LSHTM) in 2005.

As the statistical lead for the elderly care portfolio within the Complex Interventions Division (CID) at CTRU I play a key role in the strategy of the portfolio, development of grant applications, statistical oversight of the trials within the portfolio, and mentorship and development of trial statisticians. 

Nationally, I am an External Panel Member for the Dunhill Medical Trust, and sit on various external trial oversight committees as an independent statistician.  I act as an expert reviewer for the national research funding body National Institute of Health Research (NIHR), and statistical referee for leading medical journals.


  • Statistical Lead for the Elderly Care Portfolio
  • Complex Interventions Division

Research interests

With over 15 years' experience as a statistician within health research my main interests lie in the design, conduct, evaluation and reporting of complex interventions, particularly those involving cluster randomised trials.   I have worked on a range of research projects in various contexts from feasibility studies through to large scale Phase III trials focusing on improving quality of life for older people.  I also have experience of the design of process evaluations, including methods for maximising, measuring and monitoring intervention fidelity.

I am a co-applicant on a number of research grants held within the portfolio funded through the NIHR.  Current grants include:

  • A phase III multi-centre individual randomised trial with clustering in one arm, investigating extended rehabilitation for older people with frailty after acute illness or injury (HERO)
  • A programme of research including a cluster randomised feasibility trial and ndividally randomised large scale definitive Phase III trial evaluating personalised care planning to improve quality of life for older people with frailty (PROSPER)
  • A pragmatic phase III cluster randomised trial evaluating Contact Tracing in Care Homes using Digital Technology (CONTACT) – funded as part of the COVID-19 recovery and learning call
  • A phase III multi-centre cluster randomised trial evaluating an intervention to improving the safety and continuity of medicines management at care transitions for cardiology patients (ISCOMAT)

I also co-lead a workstream looking at novel methods for efficient intervention evaluation within the NIHR Applied Research Collaboration Yorkshire and Humber Older people with frailty theme.


  • Introductory Certificate in Learning and Teaching, 2008
  • MSc Medical Statistics, LSHTM, 2005
  • BSc Hons Maths and Statistics 1st Class, University of Glasgow, 2001

Professional memberships

  • Expert Panellist, Dunhill Medical Trust

Student education

  • Certificate in Learning and Teaching
  • Over 10 years' experience of teaching medical statistics at post-graduate level.
  • Currently co-supervisor for a PhD student in global surgery
  • Lead the development and delivery of an online workshop “Masterclass in the Design and Conduct of Complex Intervention Evaluations”

Research groups and institutes

  • Leeds Institute of Clinical Trials Research
  • Complex Interventions Division
  • Populations
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