In May this year, the grandfather-of-nine went for a biopsy at the Royal Free Hospital in London. To his relief, doctors told him the new cancerous cells had vanished. A spokeswoman for the Royal Free Hospital confirmed Mr Cutler had not received any cancer treatment since his transplant in November 2009. Mr Cutler, a retired builder from Hastings, East Sussex, said: 'Finding out I could die was terrible.
'All I had in those dark days was my laptop, and that's when I began searching for something else that could help me - I couldn't accept I was going to die.
Dr Kat Arney, Cancer Research UK’s science communications manager, told MailOnline: 'We know that cannabinoids – the active chemicals found in cannabis – can have a range of different effects on cancer cells grown in the lab and animal tumours.
'But at the moment there isn’t good evidence from clinical trials to prove that they can safely and effectively treat cancer in patients.
'Despite this, we are aware that some cancer patients do choose to treat themselves with cannabis extracts.
'These stories can help researchers build a picture of whether these treatments are helping or not, although this is weak evidence compared to properly-run clinical trials.
'Cancer Research UK is supporting clinical trials for treating cancer with cannabis extract and a synthetic cannabinoid In order to gather solid data on how best these drugs can be used to benefit people with cancer.'