Saturday May 25, 2019

Study Reveals Shorter Duration of Radiation Safe in Treating Prostate Cancer

This method is both safe and effective and could be a viable treatment option for men with low and intermediate-risk of prostate cancer, the study suggested.

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The study showed that this type of radiation - stereotactic body radiotherapy - is a form of external beam radiation therapy, which reduces the duration of treatment from 45 days to four to five days with no evidence of causing worse toxicity in the long run. Pixabay

Men with low or intermediate-risk prostate cancer can safely undergo higher doses of radiation over a significantly shorter period of time and still have the same, successful outcomes as from a much longer course of treatment, according to researchers including one of Indian-origin.

The study showed that this type of radiation – stereotactic body radiotherapy – is a form of external beam radiation therapy, which reduces the duration of treatment from 45 days to four to five days with no evidence of causing worse toxicity in the long run.

“Most men with low or intermediate-risk prostate cancer undergo conventional radiation, which requires them to come in daily for treatment and takes an average of nine weeks to complete,” said lead author Amar Kishan, Assistant Professor at University of California, Los Angeles, in the US.

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Nearly, 53 per cent men had low-risk disease, 32 per cent had less aggressive intermediate-risk disease and 12 per cent had a more aggressive form of intermediate-risk disease. Pixabay

“With the improvements being made to modern technology, we have found that using stereotactic body radiotherapy, which has a higher dose of radiation, can safely and effectively be done in a much shorter timeframe without additional toxicity or compromising any chance of a cure,” said Kishan.

For the study, the team included 2,142 men with low or intermediate-risk prostate cancer who were treated with stereotactic body radiotherapy. They were followed for a median of 6.9 years.

Nearly, 53 per cent men had low-risk disease, 32 per cent had less aggressive intermediate-risk disease and 12 per cent had a more aggressive form of intermediate-risk disease.

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These are essentially identical to rates following more conventional forms of radiation, which are about 4-5 per cent for low-risk disease and 10 per cent to 15 per cent for intermediate-risk disease. Pixabay

In addition, the recurrence rate for men with low-risk disease was 4.5 per cent, 8.6 per cent for the less aggressive intermediate-risk, and 14.9 per cent for the more aggressive intermediate-risk group, findings published in the journal JAMA Network Open showed.

Overall, the recurrence rate for intermediate-risk disease was 10.2 per cent.

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These are essentially identical to rates following more conventional forms of radiation, which are about 4-5 per cent for low-risk disease and 10 per cent to 15 per cent for intermediate-risk disease.

This method is both safe and effective and could be a viable treatment option for men with low and intermediate-risk of prostate cancer, the study suggested. (IANS)

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Jury Grants $2 Billion to Couple Claiming ‘Glysophate’ in Roundup Weed Killer Caused Cancer

Vietnam said it would stop importing Roundup and other weed killers with the ingredient

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FILE - Containers of Roundup are displayed on a store shelf in San Francisco, Feb. 24, 2019. VOA

For the third time in less than a year, a jury has ruled the main ingredient in a popular weed killer caused cancer in its users. A San Francisco jury Monday awarded more than $2 billion to a couple in their 70s who say glyphosate in Roundup weed killer gave them non-Hodgkin lymphoma.

The couple say they used Roundup for 35 years. Attorneys for the couple say numerous scientific studies show glyphosate led to cancer in both animal and human populations.

The World Health Organization has classified glyphosate as “probably carcinogenic to humans” and last month, Vietnam said it would stop importing Roundup and other weed killers with the ingredient.

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The World Health Organization has classified glyphosate as “probably carcinogenic to humans”. Pixabay

Bayer, Roundup’s manufacturer, argued that hundreds of other scientific tests show glyphosate is safe and that the U.S. Environmental Protection Agency determined that when used as directed, glyphosate is not dangerous.

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Bayer says it is disappointed by Monday’s verdict and plans to appeal. Two other juries in March and last August awarded multimillion-dollar settlements to Roundup victims, and thousands of other cases are pending against the company.

The Wall Street Journal reports the price of shares in Bayer has dropped 30% since its first courtroom defeat in August. The newspaper also says shareholders are angered the German-based company bought Monsanto last year when it sells a product suspected of causing cancer. (VOA)