Row as doctor who claims to 'cure' homosexuality to address London event
His planned appearance was criticised by doctors, who said that there was no supporting evidence for his claims and that the "reparative therapy" could be harmful and encourage discrimination.
Dr Nicolosi will promote the treatment at a two-day conference being held by the conservative Anglican Mainstream group.
He claims to have been helping people to "increase their heterosexual potential" for 25 years and that his "success rate" among men is about two out of three.
He told the BBC: "We have a great deal of evidence showing that these individuals are not harmed and that the therapy does work....