Whilst many NHS organisations offer prehabilitation, services vary widely between providers. The PARITY Study is researching problems of variation and inequality in prehabilitation before cancer surgery. The study is led by Dr Cliff Shelton and the project team comprises Dr Lisa Ashmore, Dr Laura Wareing, Dr Yasemin Hirst, Professor Andrew Smith, Dr Chris Gaffney, Ms Andrea Partridge, and Professor Jo Rycroft-Malone. On behalf of the PARITY Study team, we are submitting evidence in response to the question ‘is the impact of innovations in cancer diagnosis and treatment on health inequalities being sufficiently taken into account’? Our submission outlines the research planned for the ongoing study into national prehabilitation provision, quality, and inequalities. Initial findings relating to the impact on health inequalities made by innovations in prehabilitation treatment before cancer surgery are also described