Statement from Revd Dr Brendan McCarthy on Mitochondrial replacement therapy January 31, 2015 by Fulcrum The Rev Dr Brendan McCarthy, the Church of England's national adviser on medical ethics, said: "The Church of England is aware of the complex ethical issues raised over the possibility of mitochondrial replacement therapy and the extensive scientific research that has been carried out in this field over the years. Church of England website. 30 January 2015 FulcrumShareTweetShare