Light therapy effectively treats early prostate cancer

Light therapy effectively treats early prostate cancer

A new non-surgical treatment for low-risk prostate cancer can effectively kill cancer cells while preserving healthy tissue, reports a new UCL-led phase III clinical trial in 413 patients. The trial was funded by STEBA Biotech which holds the commercial license for the treatment.

The new treatment, ‘vascular-targeted photodynamic therapy’ (VTP), involves injecting a light-sensitive drug into the bloodstream and then activating it with a laser to destroy tumour tissue in the prostate. The research, published in The Lancet Oncology, found that around half (49%) of patients treated with VTP went into complete remission compared with 13.5% in the control group.

“These results are excellent news for men with early localised prostate cancer, offering a treatment that can kill cancer without removing or destroying the prostate,” says lead investigator Professor Mark Emberton, Dean of UCL Medical Sciences and Consultant Urologist at UCLH. “This is truly a huge leap forward for prostate cancer treatment, which has previously lagged decades behind other solid cancers such as breast cancer. In 1975 almost everyone with breast cancer was given a radical mastectomy, but since then treatments have steady improved and we now rarely need to remove the whole breast. In prostate cancer we are still commonly removing or irradiating the whole prostate, so the success of this new tissue-preserving treatment is welcome news indeed.”

At the moment, men with low-risk prostate cancer are put under ‘active surveillance’ where the disease is monitored and only treated when it becomes more severe. Radical therapy, which involves surgically removing or irradiating the whole prostate, has significant long-term side effects so is only used to treat high-risk cancers.

Radical therapy causes lifelong erectile problems and around one in five patients also suffer from incontinence. By contrast, VTP only caused short-term urinary and erectile problems which resolved within three months, and no significant side-effects remained after two years… Read More>>

Source: Science Daily

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