Dr Ajay Aggarwal


Associate Professor
NIHR Advanced Fellow

Keppel Street
United Kingdom

I am a Consultant Clinical Oncologist at Guy's St Thomas' NHS Trust specialising in the delivery of radiation and systemic therapies for cancer. In 2020 I received a National Institute for Health Research (NIHR) Advanced Fellowship to undertake a four-year programme of research to inform different options for the re-design of NHS cancer treatment services to optimise equity, access and outcomes using both qualitative and quantitative "big data" methods (epidemiology, GIS and econometrics). 

I graduated from Guy’s, Kings’ & St Thomas’ Medical school having attained a BSc in Management at Imperial College London. I have an MSc in the Science of Cancer from The Institute of Cancer Research and an MSc in Health, Population and Society from The London School of Economics. I completed my PhD in Health Services Research at LSHTM as part of a NIHR Doctoral Research Fellowship. In addition to my role at LSHTM I have honorary senior lecturer positions at the Institute of Cancer Policy (King's College London) and the MRC Clincial Trials Unit (University College London).

I am the current editor of the Journal of Cancer Policy. 


Department of Health Services Research and Policy
Faculty of Public Health and Policy


I am a faculty member of CREDO (International Collaboration for Research Methods Development in Oncology), which is an annual one-week research protocol development workshop involving senior oncology trainees from within and outside of India.

I am a faculty member of the Institute of Cancer Research MSc in Oncology course. I teach on two modules "Global Oncology" and "Cancer Economics".


My academic career to date brings together my training in clinical oncology (radiation and medical oncology) with national and global health services research, with a particular focus on evidence-based policy implementation and impact. I have a wide skill set in research methodologies including epidemiology, demography, geographic information systems, econometrics, and qualitative methods. 

I have contributed significantly to national and international policy discussion around the affordability of cancer care and the value of new technologies in cancer medicine, which has directly influenced both WHO Cancer Drug Pricing and Benefits Taskforces, and the European Medicines Agency. I am directly involved in international policymaking within the European Commission and ESTRO (European Society of Radiation Oncology) to inform reimbursement of medical devices. In 2017, I completed a NIHR Doctoral Research Fellowship at LSHTM which identified patient choice and hospital competition as key drivers in the adoption of robotic surgery for cancer treatment in the NHS. 

I have experience and expertise in global health research. I have previously worked at the World Health Organisation in Geneva in the TB disease domain, and have ongoing global health projects aimed at building radiotherapy capacity and research capability in low and middle income countries. I was recently awarded, in collaboration with the MD Anderson Cancer Centre, USA, and Stellenbosch University, South Africa, a Wellcome Trust Digital Innovator Award, to use Artificial Intelligence to automate radiotherapy treatment planning for the treatment of urgent and emergency presentations of advanced cancers. 

Research Area
Health policy
Health services research
Health systems
Electronic health records
Global Health
GIS/Spatial analysis
Policy analysis
Social Sciences
Disease and Health Conditions
South Africa
European Union
Middle East & North Africa (all income levels)
North America
Sub-Saharan Africa (all income levels)

Selected Publications

Public reporting of outcomes in radiation oncology: the National Prostate Cancer Audit.
Aggarwal A; Nossiter J; Parry M; Sujenthiran A; Zietman A; Clarke N; Payne H; van der Meulen J
The Lancet. Oncology
The impact of national non-pharmaceutical interventions ('lockdowns') on the presentation of cancer patients.
Purushotham A; Roberts G; Haire K; Dodkins J; Harvey-Jones E; Han L; Rigg A; Twinn C; Pramesh C; Ranganathan P
One-year mortality of colorectal cancer patients: development and validation of a prediction model using linked national electronic data.
Cowling TE; Bellot A; Boyle J; Walker K; Kuryba A; Galbraith S; Aggarwal A; Braun M; Sharples LD; van der Meulen J
British Journal of Cancer
Mortality due to cancer treatment delay: systematic review and meta-analysis.
Hanna TP; King WD; Thibodeau S; Jalink M; Paulin GA; Harvey-Jones E; O'Sullivan DE; Booth CM; Sullivan R; Aggarwal A
BMJ (Clinical research ed.)
The impact of the COVID-19 pandemic on cancer deaths due to delays in diagnosis in England, UK: a national, population-based, modelling study.
Maringe C; Spicer J; Morris M; Purushotham A; Nolte E; Sullivan R; Rachet B; Aggarwal A
The Lancet Oncology
Risk stratification for prostate cancer management: value of the Cambridge Prognostic Group classification for assessing treatment allocation.
Parry MG; Cowling TE; Sujenthiran A; Nossiter J; Berry B; Cathcart P; Aggarwal A; Payne H; van der Meulen J; Clarke NW
BMC Medicine
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