Featured Research

from universities, journals, and other organizations

Young patients with metastatic colorectal cancer at higher risk

Date:
September 30, 2013
Source:
University of Colorado Denver
Summary:
Younger patients with colorectal cancer that has spread to other parts of the body represent a high-risk group that is less likely to respond to treatment.

Younger patients with colorectal cancer that has spread to other parts of the body represent a high-risk group that is less likely to respond to treatment. Colorectal cancer in patients younger than 40 is more likely to grow despite treatment and young patients are at greater risk of death than people in other age groups.

Related Articles


That's according to research presented to the 2013 European Cancer Congress in Amsterdam. The team of scientists is led by an investigator at University of Colorado Cancer Center.

An analysis of 20,034 patients in 24 phase III clinical trials showed that the youngest and oldest patients had the highest risk of disease progression and death, compared to middle-aged patients. When compared to 57 year-olds, people under 40 had a 30% increased risk of dying from the disease, and, when compared to 61-year-olds, they had a 28% increased risk of their disease spreading during the first year of follow-up.

Colorectal cancer occurs in 4.6% of patients who are younger than 50, the incidence of the disease has been increasing at a rate of 1.5% per year from 1992 to 2005 in this age group. The most dramatic increases have been observed in the 20-29 year-old group, with an annual 5.2% increase in cases in men and a 5.6% increase in women. In the 30-39 year-old group, there has been an annual 3% increase in men and a 2% increase in women.

"The reasons why the incidence of colorectal cancer is increasing in younger patients remain unknown, although genetic predisposition, environmental factors, fewer early cancer detections in this population or a combination of these factors are thought to play a role," said Christopher Lieu, MD, a CU Cancer Center investigator and assistant professor at CU's School of Medicine.

"We carried out this study to see whether age was associated with time until cancer progresses or the patient dies. We also wanted to get a better picture of the ageresponse relationship and identify how risk changes as people age, rather than simply comparing one group (patients younger than 40) with another group (patients older than 40)," Lieu said.

Previous studies in this field have split the population into two mutually exclusive groups, establishing rigid limits between those patients younger than 40 or 50 and those older than that age. The new research, however, did not use such a cut-off approach and includes data spanning all ages.

"The reason we did this is we believe a 49-year-old patient with colorectal cancer may be different than a 20-year-old. By including them in the same group of people younger than 50 years old, we might be mistakenly considering them the same," said Lieu.

Lieu and his colleagues analyzed information from a database of clinical trials in advanced colorectal cancer supported by the French "Aide et Recherche en Cancérologie Digestive" Foundation (ARCAD), which includes the 20,034 patients from 24 phase III clinical trials who were on their first treatment for the disease. There was additional patient data in which patients might be on second or third line treatment, having not responded to their initial therapy. Out of these patients, 20,011 were evaluable for analysis of survival time and time until the disease progressed.

"Analysis of this incredibly large population of patients has allowed us to answer meaningful questions, such as the outcomes of young versus older patients. Our results show young age is associated with worse overall survival and progression-free survival," said Lieu. "Young patients with metastatic colorectal cancer represent a group who are at high risk for treatment failure."

Despite the comprehensive nature of the study, more research will be required to identify why colorectal cancer in younger people appears to be more aggressive. Lieu and collaborators from University of Texas MD Anderson Cancer Center are now looking at the biological differences that may account for the higher risk of death in people under the age of 40.


Story Source:

The above story is based on materials provided by University of Colorado Denver. Note: Materials may be edited for content and length.


Cite This Page:

University of Colorado Denver. "Young patients with metastatic colorectal cancer at higher risk." ScienceDaily. ScienceDaily, 30 September 2013. <www.sciencedaily.com/releases/2013/09/130930152835.htm>.
University of Colorado Denver. (2013, September 30). Young patients with metastatic colorectal cancer at higher risk. ScienceDaily. Retrieved November 29, 2014 from www.sciencedaily.com/releases/2013/09/130930152835.htm
University of Colorado Denver. "Young patients with metastatic colorectal cancer at higher risk." ScienceDaily. www.sciencedaily.com/releases/2013/09/130930152835.htm (accessed November 29, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, November 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rural India's Low-Cost Sanitary Pad Revolution

Rural India's Low-Cost Sanitary Pad Revolution

AFP (Nov. 28, 2014) — One man hopes his invention -– a machine that produces cheap sanitary pads –- will help empower Indian women. Duration: 01:51 Video provided by AFP
Powered by NewsLook.com
Research on Bats Could Help Develop Drugs Against Ebola

Research on Bats Could Help Develop Drugs Against Ebola

AFP (Nov. 28, 2014) — In Africa's only biosafety level 4 laboratory, scientists have been carrying out experiments on bats to understand how virus like Ebola are being transmitted, and how some of them resist to it. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
WHO Says Male Ebola Survivors Should Abstain From Sex

WHO Says Male Ebola Survivors Should Abstain From Sex

Newsy (Nov. 28, 2014) — WHO cites four studies that say Ebola can still be detected in semen up to 82 days after the onset of symptoms. Video provided by Newsy
Powered by NewsLook.com
Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
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:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

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