DOSE ESCALATION STUDY USING 4D CT PLANNING IN LOCALLY ADVANCED PANCREATIC CANCER G. Radhakrishna1, M. collins1, S. Wilson1, D. Sebag-Montefiore1, B. Carey1, S. Swift1, K. Franks1, J. Lilley2, D. Smith1, S. Kirwin1, R. Lindsay1, H. Summers1, A. Woolley1, P. Byrne1, N. Roberts1, J. Sykes1, A. Needham1, A. M. Crellin1 1 ST JAMES INSTITUTE OF ONCOLOGY THE LEEDS TEACHING HOSPITALS NHS TRUST, Leeds, United Kingdom 2 ST JAMES’S INSTITUTE OF ONCOLOGY, Leeds, United Kingdom