Navigation Links
Concurrent chemo and radiation therepy improves long-term survival for inoperable stage III lung cancer
Date:9/8/2011

Nearly 50,000 Americans are diagnosed each year with stage III or locally advanced NSCLC, for which surgery is usually not a viable treatment option. Optimizing nonsurgical treatment strategies for these patients is an ongoing research endeavor. In an article published online September 8, 2011 in the Journal of the National Cancer Institute, RTOG researchers report that treating patients with concurrent chemotherapy and radiation therapy significantly increased five‑year survival rates compared with treating patients with radiation therapy upon completion of chemotherapy treatment.

"The significant increase in five-year survival for patients receiving concurrent versus sequential treatment establishes a new treatment standard for this large population of lung cancer patients," says Walter J. Curran, Jr., M.D., RTOG Group Chair, the trial's principal investigator and Executive Director of the Winship Cancer Institute of Emory University in Atlanta. "It is likely the chemotherapy makes the tumor cells more sensitive to radiation therapy, which contributed to the improved long-term patient benefit seen with concurrent therapy," adds Curran.

A total of 610 study participants at 153 institutions across North America were enrolled into the phase III trial and were randomized to receive cisplatin-based chemotherapy in addition to radiation therapy administered sequentially (arm 1), once daily concurrently (arm 2) or twice daily concurrently (arm 3). The percentages of study participants confirmed still living at five years post-treatment in study arms 1, 2 and 3 were 10 percent, 16 percent and 13 percent, respectively. "The significant survival benefit of concurrent treatment confirms the promising results observed in a similar RTOG phase II trial and corroborates the results of a 314-patient Japanese trial and several smaller European trials," says Jeffrey D. Bradley, M.D., Director of the S. Lee Kling Center for Proton Therapy at the Siteman Cancer Center, Washington University School of Medicine in St Louis and RTOG Lung Cancer Committee Chair. "The survival gain related to concurrent treatment was most prominent in arm 2 for which the only difference in treatment compared with arm 1 was the timing of the radiation therapy delivery."

The authors also report that study participants experienced significantly worse side effects with concurrent therapy versus sequential therapy, particularly, severe esophagitis (inflammation of the esophagus lining). However, data collected from study participants, who were followed for a median of 11 years after treatment show that late side effects occurring months or years after treatment were minimal and similar across the three study arms.

Medical oncologist Corey J. Langer, M.D, Director of Thoracic Oncology at the Abramson Cancer Center, University of Pennsylvania in Philadelphia and research co-author states, "Many patients initially diagnosed with inoperable stage III disease are too ill to tolerate the more aggressive concurrent therapy administered in this trial. We are encouraged, however, that new radiation therapy techniques and chemotherapy drugs developed since the trial's conductsome currently under investigationhave the potential to increase the benefit of concurrent therapy. It is critical for RTOG and other groups to continue their investigation of new treatments to improve cancer survival and minimize treatment side effects."


'/>"/>

Contact: Heather Curry
PR@acr.org
703-390-9822
American College of Radiology
Source:Eurekalert

Related medicine news :

1. New study introduces the prospect for concurrent antiangiogenic/antitumorigenic therapy
2. New developments in nanotechnology tackle the 2 biggest problems associated with chemotherapy
3. Roche/Genentech/Chugais Herceptin as an Add-On to Standard Chemotherapy Will Become Decision Resources Clinical Gold Standard in 2013 for the Treatment Of Gastric Cancer
4. Scientists identify microRNA as possible cause of chemotherapy resistance
5. Study evaluates costs and benefits of new chemotherapy drugs
6. Older Colon Cancer Patients Less Likely to Get Chemo
7. Are New Chemo Treatments Cost-Effective?
8. BioSphere Medical's HepaSphere Microspheres Safely Deliver Doxorubicin in Liver Cancer Chemoembolization Therapy -- Study Presented at SIR
9. Researchers find new chemotherapy combination shows promise in endometrial cancer
10. Chemotherapy plus synthetic compound provides potent anti-tumor effect in pancreatic cancers
11. Recommended Dental Care for Chemotherapy Patients -- Advice from Steven McConnell, DDS
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... Viejo, California (PRWEB) , ... June 25, 2016 , ... ... to fit their specific project," said Christina Austin - CEO of Pixel Film Studios. ... fully customizable and all within Final Cut Pro X . Simply select a ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a method ... —Johnson is one of the first doctors to perform the treatment. Orthobiologics are ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... A recent ... that most people are unfamiliar with. The article goes on to state that individuals ... also many of these less common operations such as calf and cheek reduction. The ...
(Date:6/24/2016)... ... June 24, 2016 , ... Marcy was in a crisis. Her son James, eight, was ... his family verbally and physically. , “When something upset him, he couldn’t control his emotions,” ... He would throw rocks at my other children and say he was going to kill ...
(Date:6/24/2016)... ... June 24, 2016 , ... Dr. ... accelerated orthodontic treatment. Dr. Cheng has extensive experience with all areas of orthodontics, ... and accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary adjunct to orthodontic ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016 ... the "Structural Electronics 2015-2025: Applications, Technologies, Forecasts" ... In-Mold Electronics, Smart Skin, Structural ... Structural electronics involves electronic and/or ... protective structures, replacing dumb structures such as vehicle ...
(Date:6/24/2016)... June 24, 2016 Dehaier Medical Systems Ltd. ... which develops, markets and sells medical devices and wearable ... signed a strategic cooperation agreement with Hongyuan Supply Chain ... Chain") on June 20, 2016, to develop Dehaier,s new ... cooperation agreement, Dehaier will leverage Hongyuan Supply Chain,s sales ...
(Date:6/24/2016)... Research and Markets has announced the addition of the ... to their offering. ... World Market for Companion Diagnostics covers the world market for ... report includes the following: , World IVD ... (N. America, EU, ROW), 2015-2020 , World IVD Companion ...
Breaking Medicine Technology: