Featured Research

from universities, journals, and other organizations

Novel test following prostate surgery could detect cancer recurrence earlier

Date:
October 1, 2010
Source:
American Association for Cancer Research
Summary:
A new test could reliably detect early increases in prostate specific antigen levels -- a biomarker commonly used to measure the recurrence of prostate cancer -- in men who have undergone prostate cancer-treating surgery. Earlier detection of these rising levels would allow men with cancer recurrence to undergo earlier, more effective treatment for potentially better outcomes.

A new test could reliably detect early increases in prostate specific antigen (PSA) levels -- a biomarker commonly used to measure the recurrence of prostate cancer -- in men who have undergone prostate cancer-treating surgery. Earlier detection of these rising levels would allow men with cancer recurrence to undergo earlier, more effective treatment for potentially better outcomes.

Data measuring the efficacy of this new test were presented at the Fourth AACR International Conference on Molecular Diagnostics in Cancer Therapeutic Development.

"AccuPSA is a simple blood test that can tell a physician important information about prostate specific antigen levels after radical prostatectomy," said David Wilson, Ph.D., senior director of product development at Quanterix Corporation, the manufacturer of the test. "AccuPSA has the potential to eliminate unnecessary treatments and enable earlier detection of recurrence, which may lead to earlier treatment, better outcomes and have a positive impact on health care costs."

After undergoing radical prostatectomy, many men remain at a significant risk for cancer recurrence. Because of this, patients are monitored very closely for rapid increases in PSA, which may signal cancer recurrence.

Standard PSA tests are primarily used to screen asymptomatic men for prostate cancer. However, once the prostate is surgically removed, PSA levels are usually undetectable using standard tests, according to Wilson. AccuPSA, which uses Quanterix's proprietary Single Molecule Array (SiMoA™) technology, is able to detect PSA with unprecedented sensitivity, and at much lower levels than standard PSA tests because it can selectively capture and measure individual PSA molecules.

To determine the accuracy of the novel blood test, PSA levels were measured in blood taken from 60 men who had undergone radical prostatectomy. These specimens had all been categorized as being below the detection limit of standard PSA tests. However, using AccuPSA, researchers were able to measure PSA in all of the samples.

"After radical prostatectomy, many important questions remain for the physician and the patient," Wilson said. "AccuPSA is designed to help the physician and patients to become better informed by measuring PSA after radical prostatectomy and establishing if the cancer is gone or has metastasized or recurred."

The next step in this research is to conduct a large retrospective clinical study to formally establish the utility of this test.

"We hope to be able to establish with our clinical study that nadir values -- the lowest value of PSA that occurs post-surgery -- are predictive of prostate cancer recurrence," he said. "What this might mean for a post-radical prostatectomy patient is that a nadir PSA level below an established threshold could indicate if the patient is effectively considered 'cured.'"


Story Source:

The above story is based on materials provided by American Association for Cancer Research. Note: Materials may be edited for content and length.


Cite This Page:

American Association for Cancer Research. "Novel test following prostate surgery could detect cancer recurrence earlier." ScienceDaily. ScienceDaily, 1 October 2010. <www.sciencedaily.com/releases/2010/09/100929163407.htm>.
American Association for Cancer Research. (2010, October 1). Novel test following prostate surgery could detect cancer recurrence earlier. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2010/09/100929163407.htm
American Association for Cancer Research. "Novel test following prostate surgery could detect cancer recurrence earlier." ScienceDaily. www.sciencedaily.com/releases/2010/09/100929163407.htm (accessed July 23, 2014).

Share This




More Health & Medicine News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Courts Conflicted Over Healthcare Law

Courts Conflicted Over Healthcare Law

AP (July 22, 2014) Two federal appeals courts issued conflicting rulings Tuesday on the legality of the federally-run healthcare exchange that operates in 36 states. (July 22) Video provided by AP
Powered by NewsLook.com
Why Do People Believe We Only Use 10 Percent Of Our Brains?

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Newsy (July 22, 2014) The new sci-fi thriller "Lucy" is making people question whether we really use all our brainpower. But, as scientists have insisted for years, we do. Video provided by Newsy
Powered by NewsLook.com
Scientists Find New Way To Make Human Platelets

Scientists Find New Way To Make Human Platelets

Newsy (July 22, 2014) Boston scientists have discovered a new way to create fully functioning human platelets using a bioreactor and human stem cells. Video provided by Newsy
Powered by NewsLook.com
Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

TheStreet (July 21, 2014) New research shows Gilead Science's drug Sovaldi helps in curing hepatitis C in those who suffer from HIV. In a medical study, the combination of Gilead's Hep C drug with anti-viral drug Ribavirin cured 76% of HIV-positive patients suffering from the most common hepatitis C strain. Hepatitis C and related complications have been a top cause of death in HIV-positive patients. Typical medication used to treat the disease, including interferon proteins, tended to react badly with HIV drugs. However, Sovaldi's %1,000-a-pill price tag could limit the number of patients able to access the treatment. TheStreet's Keris Lahiff reports from New York. Video provided by TheStreet
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