As far as we know, it is the first time that a cancer therapy achieved terminal cancer eliminating all cancer cells
Judy – who lives in Florida – had spreading, advanced breast cancer that could not be treated with conventional therapy. She had tennis ball-sized tumours in her liver and secondary cancers throughout her body. She told the BBC: “About a week after [the therapy] I started to feel something, I had a tumour in my chest that I could feel shrinking. It took another week or two for it to completely go away.” She remembers her first scan after the procedure when the medical staff, “were all very excited and jumping around”. It was then she was told that she was likely to be cured. Now she’s filling her life with backpacking and sea kayaking and has just taken five weeks circumnavigating Florida.
It involved produce and pumping 90 billion cancer-killing immune cells into her body.
The technology is a “living drug” made from a patient’s own cells at one of the world’s leading centres of cancer research. Dr Steven Rosenberg, chief of surgery at the National Cancer Institute, told the BBC: “We’re talking about the most highly personalised treatment imaginable.”
It remains experimental and still requires considerably more testing before it can be used more widely, but this is how it works: it starts by getting to know the enemy.
A patient’s tumour is genetically analysed to identify the rare changes that might make the cancer visible to the immune system. Out of the 62 genetic abnormalities in this patient, only four were potential lines of attack.
Supporting the fight between white blood cells and cancer.
Next researchers go hunting. A patient’s immune system will already be attacking the tumour, it’s just losing the fight between white blood cells and cancer. The scientists screen the patient’s white blood cells and extract those capable of attacking the specific cancer. These are then grown in huge quantities in the laboratory. Around 90 billion cells were injected back into the 49-year-old patient, alongside drugs to take the brakes off the immune system.
Dr Rosenberg told me: “The very mutations that cause cancer turn out to be its Achilles heel.” said the autor of the article.
These are the results from a single patient and much larger trials will be needed to confirm the findings. The challenge so far in cancer immunotherapy is it tends to work spectacularly for some patients, but the majority do not benefit.
Dr Rosenberg added: “This is highly experimental and we’re just learning how to do this, but potentially it is applicable to any cancer. “A lot of works needs to be done, but the potential exists for a paradigm shift in cancer therapy – a unique drug for every cancer patient – it is very different to any other kind of treatment.” (BBC, June 4, 2018)
Our bioethics comment
This is the most hopeful news, in our opinion, at any time published to heal any type of cancer. It starts by getting to genetical know the enemy. The treatment that uses cells of the patient doesn’t present any ethical problem. One possible ethical issue to be studied would be the treatment cost.
Read the peer review article HERE