Ash Bullement

BSc, MSc

School of Medicine and Population Health

PhD Student

Abullement1@sheffield.ac.uk

Full contact details

Ash Bullement
School of Medicine and Population Health
Regent Court (ScHARR)
30 Regent Street
Sheffield
S1 4DA
Profile

I am a part-time PhD student at ScHARR, supervised by Dr Nick Latimer, Prof Matt Stevenson, and Prof Gianluca Baio (UCL). My research is focused on the use of external information to inform survival extrapolations based on clinical trials of cancer treatments. Outside of my PhD studies, I am a health economics analyst working in industry.

Qualifications

BSc Mathematics, Statistics and Operational Research, Cardiff University

MSc Health Economics and Decision Modelling, University of Sheffield

Research interests

My research interests are on the use of survival analysis methodology to estimate survival curves for use in healthcare decision making, specifically health technology assessments of cancer treatments. I am especially interested in estimating longer-term survival for treatments with novel mechanistic properties that are associated with complex hazard functions.

The working title of my PhD is ‘An exploration of methods to incorporate external information into survival modelling in oncology’.

Publications

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All publications

Journal articles

  • Petitjean A, Shang H, Bullement A & Latimer N (2025) . Journal of Medical Economics, 28(1), 803-813.
  • Ivanyi P, Bullement A, Botticelli A, Perri F, Colombo GL, Annibali V, Gandola A, Naik J, Schlichting M & Pescott CP (2025) . Future Oncology, 21(14), 1779-1786.
  • Gal P, Feldmajer G, Augusto M, Gani R, Hook E, Bullement A, Philips Z & Smith I (2025) . PharmacoEconomics, 43(5), 595-596.
  • Bullement A, Edmondson-Jones M & Latimer N (2024) . BMC Cancer, 24(1).
  • Ivanyi P, Bullement A, Ciccarone A, Schlichting M, Naik J, Colombo GL, Gandola A & Pescott CP (2023) . Value in Health, 26(12), S120-S120.
  • Hamerton L, Gomes K, Fougeray R, Hook ES, Gomes MV, Hauch O & Bullement A (2023) . Future Oncology, 19(9), 643-650.
  • Vadgama S, Mann J, Bashir Z, Spooner C, Collins GP & Bullement A (2022) . Value in Health.
  • Critchlow S, Xiao Y, Crabb S, Eccleston A, Christoforou K, Amin A, Bullement A, Deighton K, Chang J, Kearney M , Kapetanakis V et al (2022) . Value in Health, 25(1), S32-S33.
  • Bullement A (2021) . Journal of the Royal Statistical Society: Series A (Statistics in Society).
  • Shields GE, Pennington B, Bullement A, Wright S & Elvidge J (2021) . PharmacoEconomics.
  • Bullement A, Knowles E, Langenfeld M, Diogo GR, Nazir J & Eriksson D (2021) . Open Access Rheumatology: Research and Reviews, 13, 257-266.
  • Bullement A, Knowles ES, DasMahapatra P, Ali T & Preblick R (2021) . PharmacoEconomics - Open.
  • Hatswell AJ, Bullement A, Schlichting M & Bharmal M (2020) . Applied Health Economics and Health Policy.
  • Cranmer H, Shields GE & Bullement A (2020) . Journal of Medical Economics, 23(10), 1176-1185.
  • Bullement A, Podkonjak T, Robinson MJ, Benson E, Selby R, Hatswell AJ & Shields GE (2020) . International Journal of Technology Assessment in Health Care, 36(4), 388-394.
  • Bullement A, Willis A, Amin A, Schlichting M, Hatswell AJ & Bharmal M (2020) . BMC Medical Research Methodology, 20.
  • Bullement A, McMordie ST, Hatswell AJ, Li N & Wilson K (2020) . PharmacoEconomics - Open, 4, 133-142.
  • Gladwell D, Bullement A, Cowell W, Patterson K & Strong M (2019) . Value in Health.
  • Bullement A, Cranmer HL & Shields GE (2019) . Applied Health Economics and Health Policy, 17(6), 771-780.
  • Bullement A, Taylor M, McMordie ST, Waters E & Hatswell AJ (2019) . PharmacoEconomics, 37(11), 1383-1390.
  • Cranmer H, Shields G & Bullement A (2019) . Value in Health, 22, S479-S479.
  • Bullement A, Cranmer H & Shields G (2019) . Value in Health, 22, S456-S457.
  • Cranmer H, Shields G & Bullement A (2019) . Value in Health, 22, S456-S456.
  • Bullement A, Nathan P, Willis A, Amin A, Lilley C, Stapelkamp C, Hatswell A, Pescott C & Bharmal M (2019) . PharmacoEconomics - Open, 3(3), 377-390.
  • Hatswell AJ, Bullement A, Schlichting M & Bharmal M (2019) . Value in Health, 22, S105-S105.
  • Bullement A, Shields G, Hatswell AJ, Schlichting M & Bharmal M (2019) . Value in Health, 22, S44-S44.
  • Li N, Bullement A, McMordie S, Hatswell AJ & Wilson K (2019) . Value in Health, 22, S389-S389.
  • Bullement A, Meng Y, Cooper M, Lee D, Harding TL, O’Regan C & Aguiar-Ibanez R (2019) . Journal of Medical Economics, 22(3), 205-214.
  • Bullement A, Latimer NR & Bell Gorrod H (2018) . Value in Health.
  • Bharmal M, Amin A, Stapelkamp C, Pescott C, Hatswell A, Lilley C, Bullement A & Willis A (2018) . Annals of Oncology, 29, viii461-viii461.
  • Hatswell AJ, Bullement A, Briggs A, Paulden M & Stevenson MD (2018) . PharmacoEconomics.
  • Bullement A, Underhill S, Fougeray R & Hatswell AJ (2018) . Clinical Colorectal Cancer, 17(1), e143-e151.
  • Powles T, Durán I, van der Heijden MS, Loriot Y, Vogelzang NJ, De Giorgi U, Oudard S, Retz MM, Castellano D, Bamias A , Fléchon A et al (2018) . The Lancet, 391(10122), 748-757.
  • Elvidge J, Bullement A & Hatswell AJ (2016) . PharmacoEconomics, 34(11), 1145-1159.
  • Bullement A, Edmondson-Jones M, Guyot P, Welton NJ, Baio G, Stevenson M & Latimer NR () . PharmacoEconomics.
  • Shields GE, Clarkson P, Bullement A, Stevens W, Wilberforce M, Farragher T, Verma A & Davies LM () . PharmacoEconomics.
  • Vadgama S, Pasquini MC, Maziarz RT, Hu Z-H, Ray MD, Smith H, Bullement A, Edmondson-Jones M, Sullivan W & Cartron G () . Blood Advances.
  • Critchlow S, Bullement A, Crabb S, Jones R, Christoforou K, Amin A, Xiao Y, Kapetanakis V, Benedict Á, Chang J , Kearney M et al () . Future Oncology.
  • Gal P, Feldmajer G, Augusto M, Gani R, Hook E, Bullement A, Philips Z & Smith I () . PharmacoEconomics.
  • Bullement A, Stevenson MD, Baio G, Shields GE & Latimer NR () . Medical Decision Making, 0272989X2311686-0272989X2311686.
  • Cranmer HL, Shields GE & Bullement A () . Applied Health Economics and Health Policy.
  • Gooding S, Lau I-J, Sheikh M, Roberts P, Wong J, Dickens E, Bullement A, Elvidge J, Lee D & Ramasamy K () . PLOS ONE, 10(9), e0136207-e0136207.
  • Farmer C, Bullement A, Packman D, Long L, Robinson S, Nikram E, Hatswell AJ, Melendez-Torres GJ & Crathorne L () . PharmacoEconomics.
  • Bullement A & Kearns B () Incorporating external trial data to improve survival extrapolations: a pilot study of the COU-AA-301 trial. Health Services and Outcomes Research Methodology.

Conference proceedings

  • Bullement A, Knowles E, van Leeuwen-Gorter A, Langenfeld M, Reynolds Diogo G, Nazir J & Eriksson D (2020) . Value in Health, Vol. 23 (pp S539-S539), 16 November 2020 - 19 November 2020.
  • Metry A, Sullivan W, Kearns BC & Bullement A (2019) . Value in Health, Vol. 22 (pp S577-S578)
  • Sullivan W, Bullement A & Lee D (2018) . Value in Health, Vol. 21 (pp S379-S379)
  • Willis A, Bullement A & Sullivan W (2018) . Value in Health, Vol. 21 (pp S378-S379)
  • Bullement A, Amin A, Stapelkamp C, Willis A, Lilley C, Hatswell AJ, Pescott C & Bharmal M (2018) . Value in Health, Vol. 21 (pp S11-S11)
  • Gosain S, Bullement A, Kirby J, Ralph L, Lilley C & Lawrence D (2018) . Value in Health, Vol. 21 (pp S465-S465)
  • Bullement A & Hatswell AJ (2018) . Value in Health, Vol. 21 (pp S8-S8)
  • Bullement A, D'Angelo SP, Amin A, Stapelkamp C, Willis A, Lilley C, Hatswell A & Bharmal M (2018) . Journal of Clinical Oncology, Vol. 36(15_suppl) (pp e21620-e21620)
  • Hatswell AJ, Bullement A, Paulden M & Stevenson M (2017) . Value in Health, Vol. 20(9) (pp A746-A746)
  • Mahon S, Bullement A, Willis A, Sullivan W, Britton JA, Cox L, Tyas D & Sowdani A (2017) . Value in Health, Vol. 20(9) (pp A440-A440)
  • Hatswell AJ, Cooper M, Bharmal M & Bullement A (2017) . Value in Health, Vol. 20(9) (pp A422-A422)
  • Bullement A & Critchlow S (2016) . Value in Health, Vol. 19(7) (pp A378-A379)
  • Hatswell A, Anelli M, Vigevano F, Saunders A, Bullement A & Lee D (2014) . Value in Health, Vol. 17(3) (pp A61-A61)