Featured Research

from universities, journals, and other organizations

Neutron Followed By Photon Radiation Means Improved Survival Of Some Prostate Cancer Patients

Date:
November 3, 1999
Source:
American Society For Therapeutic Radiology And Oncology
Summary:
Mixing neutrons and photons as the types of radiation used to treat cancer confined to the prostate results in a 90 percent three-year disease free survival rate, a new study shows.

Mixing neutrons and photons as the types of radiation used to treat cancer confined to the prostate results in a 90 percent three-year disease free survival rate, a new study shows.

The results of the study, conducted at Wayne State University in Detroit, MI, were presented November 1 at the American Society for Therapeutic Radiology and Oncology annual meeting in San Antonio, TX.

The study of 300 patients found that patients who were treated with neutrons first followed by photons had the best results, says Jeffrey Forman, M.D., interim chair of the department of radiation oncology at Karmanos Cancer Institute in Detroit. "Ninety-five percent of patients who received neutrons first were free of cancer recurrence at four years compared to 73 percent who were treated with photons first," he says. "The improved outcome could mean that the neutron radiation therapy is sensitizing the cancer cells so they can be killed by the photon irradiation," theorizes Dr. Forman.

Combining neutron and photon therapy did not increase the side effects, notes Dr. Forman. The level of side effects was comparable to standard treatment for this disease, he adds.

Photon radiation is the type of radiation that is commonly used in external beam radiation therapy. On the other hand, neutron therapy is available in only a few centers because it requires extensive technology - a cyclotron, Dr. Forman says.

"We will follow these patients closely to confirm whether improvement in disease free survival translates into improvement in overall survival. Because of the limited number of neutron facilities it will be interesting in the future to compare this technique with high dose conformal radiation therapy. Still, the results seen in this group that received neutrons first and then photon radiation were remarkable, says Dr. Forman.

The American Society for Therapeutic Radiology and Oncology (ASTRO) is the largest radiation oncology society in the world, with more than 5,000 members. As a leading organization in radiation oncology, biology and physics, the society's goals are to advance the scientific base of radiation therapy and to extend the benefits of radiation therapy to those with cancer.


Story Source:

The above story is based on materials provided by American Society For Therapeutic Radiology And Oncology. Note: Materials may be edited for content and length.


Cite This Page:

American Society For Therapeutic Radiology And Oncology. "Neutron Followed By Photon Radiation Means Improved Survival Of Some Prostate Cancer Patients." ScienceDaily. ScienceDaily, 3 November 1999. <www.sciencedaily.com/releases/1999/11/991103081040.htm>.
American Society For Therapeutic Radiology And Oncology. (1999, November 3). Neutron Followed By Photon Radiation Means Improved Survival Of Some Prostate Cancer Patients. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/1999/11/991103081040.htm
American Society For Therapeutic Radiology And Oncology. "Neutron Followed By Photon Radiation Means Improved Survival Of Some Prostate Cancer Patients." ScienceDaily. www.sciencedaily.com/releases/1999/11/991103081040.htm (accessed August 21, 2014).

Share This




More Health & Medicine News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Drug Used To Treat 'Ebola's Cousin' Shows Promise

Drug Used To Treat 'Ebola's Cousin' Shows Promise

Newsy (Aug. 21, 2014) An experimental drug used to treat Marburg virus in rhesus monkeys could give new insight into a similar treatment for Ebola. Video provided by Newsy
Powered by NewsLook.com
Cadavers, a Teen, and a Medical School Dream

Cadavers, a Teen, and a Medical School Dream

AP (Aug. 21, 2014) Contains graphic content. He's only 17. But Johntrell Bowles has wanted to be a doctor from a young age, despite the odds against him. He was recently the youngest participant in a cadaver program at the Indiana University NW medical school. (Aug. 21) Video provided by AP
Powered by NewsLook.com
American Ebola Patients Released: What Cured Them?

American Ebola Patients Released: What Cured Them?

Newsy (Aug. 21, 2014) It's unclear whether the American Ebola patients' recoveries can be attributed to an experimental drug or early detection and good medical care. Video provided by Newsy
Powered by NewsLook.com
Lost Brain Cells To Blame For Sleep Problems Among Seniors

Lost Brain Cells To Blame For Sleep Problems Among Seniors

Newsy (Aug. 21, 2014) According to a new study, elderly people might have trouble sleeping because of the loss of a certain group of neurons in the brain. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins