Related Experiment Video
Updated: Mar 24, 2026
Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
Published on: February 6, 2019
Hypofractionated radiotherapy for localized prostate cancer using three-dimensional conformal radiotherapy technique:
1Department of Clinical Oncology, Mount Vernon Cancer Centre, Northwood, United Kingdom.
Background:
Hypofractionated radiotherapy in the radical treatment of localized prostate cancer has potential biological advantages relative to conventional fractionation. We report prospectively collected toxicity data from a cohort of patients treated with a 3D conformal technique (3DCRT).
Materials And Methods:
90 patients receiving curative intent hypofractionated radiotherapy with 57Gy in 19 daily fractions over 3.8 weeks were evaluated prospectively for the development of radiation related toxicity over a 3 year period.
Results:
All patients completed treatment. Maximal acute toxicity experienced was 58.6, 10 and 1.1% for grade 1, 2 and 3 genitourinary (GU) toxicity respectively and 75.6, 9 and 0% for gastrointestinal (GI) toxicity. For late toxicity the three year actuarial rates of grade 1, 2 and 3 GU and GI toxicity respectively were 47.3, 2.4 and 0%; and 40, 9.3 and 4.7%. There were no grade 4 or worse acute or late toxicities. 97.6% of evaluable patients remained free of biochemical failure 36 months post radiotherapy.
Conclusions:
A 57Gy in 19 daily fraction radiotherapy schedule using 3D conformal radiotherapy for the definitive treatment of localized prostate cancer has acceptable early and late toxicity.
