I am currently Professor of Medical Statistics and the Director of the Centre for Health Care Randomised Trials (CHaRT) which is the Clinical Trials Unit embedded within the Health Services Research Unit. My overarching research interest is in designing fair tests of health care treatments and policies, with a specifc interest in evaluating surgical and complex interventions. I'm also interested in improving the design, conduct, and analysis and reporting of clinical trials through the development and application of methodological research to clinical trials from CHaRT.
My undergrad degree is in Mathematics from the University of Aberdeen, graduating in 1997. After a year training as a Mathematics teacher I joined the Unit in September 1998 as a statistician. I studied part-time for an MSc in Applied Statistics with Sheffield Hallam University, graduating in 2004. In 2008 I was appointed Senior Statistican, and in 2016 was I Interim Programme Director for the Health Care Assessment Programme, until being appointment as CHaRT Director in April 2017.
The application of statistical methods to clinical trials. Recent example is JCE paper available here on using instrumental variables in a surgery trial to address non-compliance. Collaborators were Jonathan Cook (Oxford), Tom Palmer (Lancaster), and Richard Emesley (Manchester).
Research on making trials more efficient, collaborating with Trial Forge.
Current Research
A complete list of the CHaRT RCT portolio is available by clicking here
The Achieving Self-directed Integrated Cancer Aftercare Intervention for Detection of Recurrent and Second Primary Melanoma in Survivors of Melanoma: Pilot Randomized Controlled Trial
Murchie, P., Constable, L., Hall, S., Brant, W., Allan, J., Johnston, M., Masthoff, J., Lee, A., Treweek, S., Ayansina, D., Proby, C., Rahman, K., Walter, F., Burrows, N., Durrani, A., Maclennan, G.
Remotely delivered cognitive behavioural and personalised exercise interventions for fatigue severity and impact in inflammatory rheumatic diseases: a multi-centre randomised controlled parallel open-label group trial (LIFT)
Bachmair, E., Martin, K., Aucott, L., Dhaun, N., Dures, E., Emsley, R., Gray, S. R., Kidd, E., Kumar, V., Lovell, K., MacLennan, G., McNamee, P., Norrie, J., Paul, L., Packham, J., Ralston, S. H., Siebert, S., Wearden, A., LIFT study group, Macfarlane, G., Basu, N.
The Lancet Rheumatology, vol. 4, no. 8, pp. e534-e545
Synthetic sling or artificial urinary sphincter for men with urodynamic stress incontinence after prostate surgery: the MASTER non-inferiority RCT
Constable, L., Abrams, P., Cooper, D., Kilonzo, M., Cotterill, N., Harding, C. K., Drake, M. J., Pardoe, M. N., McDonald, A., Smith, R., Norrie, J., McCormack, K., Ramsay, C., Uren, A., Mundy, T., Glazener, C., MacLennan, G.
Health Technology Assessment, vol. 26, no. 36, 184
Effectiveness and cost-effectiveness of text messages with or without endowment incentives for weight management in men with obesity (Game of Stones): study protocol for a randomised controlled trial
Macaulay, L., O’Dolan, C., Avenell, A., Carroll, P., Cotton, S., Dombrowski, S., Elders, A., Goulao, B., Gray, C., Harris, F. M., Hunt, K., Kee, F., MacLennan, G., McDonald, M. D., McKinley, M., Skinner, R., Torrens, C., Tod, M., Turner, K., van der Pol, M., Hoddinott, P.
Reducing asthma attacks in children using exhaled nitric oxide (RAACENO) as a biomarker to inform treatment strategy: a multicentre, parallel, randomised, controlled, phase 3 trial
Turner, S., Cotton, S., Wood, J., Bell, V., Raja, E. A., Scott, N., Morgan, H., Lawrie, L., Emele, D., Kennedy, C., Scotland, G., Fielding, S., MacLennan, G., Norrie, J., Forrest, M., Gaillard, E. A., de Jongste, J. C., Pijnenburg, M. W., Thomas, M., Price, D.
The Lancet. Respiratory medicine, vol. 10, no. 6, pp. 584-592
Treatment guided by fractional exhaled nitric oxide in addition to standard care in 6- to 15-year-olds with asthma: the RAACENO RCT
Turner, S., Cotton, S., Wood, J., Bell, V., Raja, E. A., Scott, N., Morgan, H., Lawrie, L., Emele, D., Kennedy, C., Scotland, G., Fielding, S., MacLennan, G., Norrie, J., Forrest, M., Gaillard, E. A., de Jongeste, J., Pijnenburg, M. W., Thomas, M., Price, D.
The EMPOWER blended digital intervention for relapse prevention in schizophrenia: a feasibility cluster randomised controlled trial in Scotland and Australia
Gumley, A. I., Bradstreet, S., Ainsworth, J., Allan, S., Alvarez-Jimenez, M., Aucott, L., Birchwood, M., Briggs, A., Bucci, S., Cotton, S. M., Engel, L., French, P., Lederman, R., Lewis, S., Machin, M., MacLennan, G., McLeod, H., McMeekin, N., Mihalopoulos, C., Morton, E., Norrie, J., Schwannauer, M., Singh, S. P., Sundram, S., Thompson, A., Williams, C., Yung, A. R., Farhall, J., Gleeson, J.
The effectiveness and cost-effectiveness of resuscitative endovascular balloon occlusion of the aorta (REBOA) for trauma patients with uncontrolled torso haemorrhage: study protocol for a randomised clinical trial (the UK-REBOA trial)
Jansen, J. O., Cochran, C., Boyers, D., Gillies, K., Lendrum, R., Sadek, S., Lecky, F., MacLennan, G., Campbell, M. K., UK-REBOA Trial grantholders