Bio Vaccine

Cancer vaccine breakthrough: Trial for terminally ill patients 'could change landscape'

2022-01-17
MARKET NEWS


The first jab has already been given and trials of the new technology are shortly to be widened to four NHS hospitals. The treatment is designed to boost the body’s immune system to identify and destroy cancer cells.

Medics have expressed excitement for the vaccination, which they describe as a potential “game changer for cancer medicine”.

Earlier this month, Sezgin Hick, a 61-year-old mother of two from Teddington, south-west London, was given the first of three fortnightly jabs to shrink her tumours, which had spread from her ovary into her lymph nodes and abdomen.

This was despite almost eight years of chemotherapy and immunotherapy treatments. She is the first of 36 critically ill patients who will be recruited into the vaccine trial, which experts say could eventually include people with a wide range of cancer types.

Ms Hick, a former intensive care nurse, who was diagnosed with ovarian cancer in 2012, has been told the new vaccine is now the only treatment available to her as all others have failed to work.

She is being treated at the private Sarah Cannon Research Institute in London, which accepts NHS patients, while other triallists will be treated across four other hospitals – Christie Hospital in Manchester, Churchill Hospital in Oxford, London’s University College Hospital and Velindre Hospital in Cardiff.

She is the first patient to undergo the treatment and further trial centres will start up this month. The initial study is designed to target ovarian, prostate and lung cancers.

The vaccine, developed by biomedical company Oxford Vacmedix – a spin-out company of Oxford University – targets survivin, a protein over-expressed by cancer cells and found in a large variety of cancers.

Survivin replicates on cancer cells and helps them reproduce.

The new vaccine is made of a synthetic version of survivin.

It is designed to trigger the body’s immune system to ramp up in response, and in turn destroy tumour cells.

Professor Martin Forster, a cancer consultant at University College London and the chief investigator for the trial, said: “This new technology could ultimately change the landscape of the treatment of prostate, lung and ovarian cancers as well as other cancers in the future. Although we are at the early stages of our trials we hope that the vaccines will trigger the immune system into action and get rid of tumours.

“It is very exciting as up to now there have been almost no licensed or approved vaccines to treat cancer and, if successful, it could be a game changer for cancer medicine.”

Dr Shisong Jiang, chief scientific officer at Oxford Vacmedix and academic in the Department of Oncology at Oxford University, said: “The new technology has been developed from an initial concept in the laboratory to now being tested as a treatment for critically ill patients.

“We see the potential benefits of this novel vaccination approach both in stimulating the body’s immune system to attack the cancer and also, in future trials, enhancing the action of other cancer treatments.

“This phase one trial is a first step towards having effective cancer vaccines.”

Dr Hendrik-Tobias Arkenau, lead investigator at the Sarah Cannon Research Institute, said: “I strongly believe that vaccine treatments will play a major role in future cancer treatments.

“This is a next generation of immunotherapy and because it is designed to stimulate the body’s own immune system, we do not expect it to have many side effects, nor damage healthy tissues in the way that chemotherapy does.”

There are currently no licensed or approved vaccines to treat cancer, so this novel vaccine is very exciting.

It works by stimulating the body’s immune system to become active against a protein called survivin, which is over-expressed on many different cancers, including ovarian, prostate and lung cancer.

After the vaccination, the body immediately recognises the survivin and sees it as something that should not be there, triggering the immune system to get rid of it.


출처: Express

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