Featured Research

from universities, journals, and other organizations

High frequency of EGFR mutations found in Asian population

Date:
February 14, 2014
Source:
International Association for the Study of Lung Cancer
Summary:
Adenocarcinoma histology, female sex, never-smoking status, and Asian ethnicity have been considered the most important factors associated with EGFR mutations in non-small cell lung cancer and response to EGFR inhibitors. A recent study has found that, within the Asian population, the frequency of EGFR mutations associated with other demographic and clinical characteristics is higher than previously reported.

Adenocarcinoma histology, female sex, never-smoking status, and Asian ethnicity have been considered the most important factors associated with EGFR mutations in non-small cell lung cancer and response to EGFR inhibitors. A recent study has found that, within the Asian population, the frequency of EGFR mutations associated with other demographic and clinical characteristics is higher than previously reported, even in patients with a history of smoking, suggesting that mutation testing should be done on a broader basis among Asian patients with advanced adenocarcinoma of the lung.

Related Articles


The PIONEER study is the first prospective, multinational epidemiologic study to document the frequency of EGFR mutations in lung adenocarcinoma in the Asian population. The PIONEER authors found that EGFR mutations were present in 51.4% of stage IIIB or IV adenocarcinomas of the lung among 1,450 patients from seven regions of Asia. Previous reports have suggested a frequency of approximately 30% among the Asian population (compared with 20% among the white population). The findings of the PIONEER study are published in the February issue of the International Association for the Study of Lung Cancer's journal, the Journal of Thoracic Oncology (JTO).

The frequency of EGFR mutations was high among women (61.1%) and never-smokers (60.7%), but EGFR mutations were also common among men (44%), occasional smokers (51.6%), and previous smokers (43.2%). With regard to Asian regions, the frequency was highest in Vietnam (64.2%) and lowest in India (22.2%).

"The frequency of EGFR mutations in demographic and clinical subgroups of Asian patients in PIONEER suggests that EGFR mutation testing should be considered for all patients with stage IIIB or IV adenocarcinoma of the lung in Asian populations," says first author Yuankai Shi, MD, of the Department of Medical Oncology, Cancer Institute/Hospital, Beijing, China. More widespread mutation testing would help to ensure the optimal identification and treatment of patients with lung adenocarcinomas that harbor EGFR mutations.


Story Source:

The above story is based on materials provided by International Association for the Study of Lung Cancer. Note: Materials may be edited for content and length.


Journal Reference:

  1. Yuankai Shi, Joseph Siu-Kie Au, Sumitra Thongprasert, Sankar Srinivasan, Chun-Ming Tsai, Mai Trong Khoa, Karin Heeroma, Yohji Itoh, Gerardo Cornelio, Pan-Chyr Yang. A Prospective, Molecular Epidemiology Study of EGFR Mutations in Asian Patients with Advanced Non–Small-Cell Lung Cancer of Adenocarcinoma Histology (PIONEER). Journal of Thoracic Oncology, 2014; 9 (2): 154 DOI: 10.1097/JTO.0000000000000033

Cite This Page:

International Association for the Study of Lung Cancer. "High frequency of EGFR mutations found in Asian population." ScienceDaily. ScienceDaily, 14 February 2014. <www.sciencedaily.com/releases/2014/02/140214203942.htm>.
International Association for the Study of Lung Cancer. (2014, February 14). High frequency of EGFR mutations found in Asian population. ScienceDaily. Retrieved December 17, 2014 from www.sciencedaily.com/releases/2014/02/140214203942.htm
International Association for the Study of Lung Cancer. "High frequency of EGFR mutations found in Asian population." ScienceDaily. www.sciencedaily.com/releases/2014/02/140214203942.htm (accessed December 17, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Wednesday, December 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

When You Lose Weight, This Is Where The Fat Goes

When You Lose Weight, This Is Where The Fat Goes

Newsy (Dec. 17, 2014) Can fat disappear into thin air? New research finds that during weight loss, over 80 percent of a person's fat molecules escape through the lungs. Video provided by Newsy
Powered by NewsLook.com
Flu Outbreak Closing Schools in Ohio

Flu Outbreak Closing Schools in Ohio

AP (Dec. 17, 2014) A wave of flu illnesses has forced some Ohio schools to shut down over the past week. State officials confirmed one pediatric flu-related death, a 15-year-old girl in southern Ohio. (Dec. 17) Video provided by AP
Powered by NewsLook.com
Feeling Young Might Mean A Longer Life Span

Feeling Young Might Mean A Longer Life Span

Newsy (Dec. 16, 2014) A study published in JAMA shows that people who feel younger than their chronological age might actually live longer than those who feel old. Video provided by Newsy
Powered by NewsLook.com
2016 Olympic Waters Feature 'Super Bacteria' Researchers Say

2016 Olympic Waters Feature 'Super Bacteria' Researchers Say

Newsy (Dec. 16, 2014) Researchers found the bacteria Klebsiella pneumoniae Carbapenemase in the water where the 2016 Olympics is supposed to take place. 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:

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