"It's a massive difference to go from being told you have months to live to being in remission."

Debbie was diagnosed with mesothelioma, a lung cancer caused by exposure to asbestos, in November 2006.

The Ministry of Defence awarded her a six-figure compensation payment after she said the illness was caused by hugging her dockyard worker father Phillip Northmore as a child.

Told by doctors that she had between six and nine months to live, she travelled to Frankfurt for treatment after hearing of an experimental process being carried out by Professor Thomas Vogl. She used her compensation to pay for six sessions at the clinic.

The treatment is known as chemoembolisation and is more commonly used to fight liver cancer.

It introduces chemotherapy drugs directly to the tumour area through a catheter into the lung.

Since May last year, Debbie has paid for six sessions of the chemoembolisation at the University Clinic. Each session cost £3,500.

She will travel to Germany in three months as her progress is being monitored by Prof Vogl, who is trialling the treatment on mesothelioma patients.

Prof Vogl told The Herald he treats about 500 patients a year using the localalised chemotherapy.

He said the clinic has a 'success rate' of 60 per cent, which means they are able to prolong the life of 60 per cent of patients.

In January Debbie launched a petition calling for there to be trials of chemoembolisation for mesothelioma patients in the UK.

She recommended the treatment to liver cancer patient Stephanie Chouette, of Plymstock, who was this month told her tumour has shrunk by 20 per cent after her first session in Frankfurt.

Debbie's petition can be found on the Downing Street website – petitions.number10.gov.uk – and has so far attracted more than 1,000 signatures.