Navigation Links
Anthracyclines improve survival in HER2-positive breast cancer patients
Date:12/25/2007

Treatment with the class of chemotherapy drugs called anthracyclines improves survival in women with HER2-positive breast cancer who have previously had surgery, but it may not offer any benefit for women with HER2-negative tumors, according to a study published online December 25 in the Journal of the National Cancer Institute.

Randomized clinical trials have demonstrated that treating early breast cancer with anthracycline-based chemotherapy improves disease-free and overall survival rates more than non-anthracycline-based regimens. However, the studies have demonstrated that anthracyclines may slightly increase the risk of heart damage and leukemia. Given these side effects, the greatest benefit of these regimens may be in women with breast tumors that overexpress HER2a gene that is often amplified in tumors that respond to anthracyclines.

Alessandra Gennari, M.D., Ph.D., of the National Cancer Research Institute in Genoa, Italy, and colleagues compiled data from eight randomized controlled trials that compared anthracyclines and non-anthracyclines, and also reported HER2 status. Almost 30 percent of the patients tumors overexpressed HER2.

Overall and among patients with HER2-positive tumors, anthracycline-based chemotherapy produced a greater reduction in the risk of relapse or death than non-anthracycline-based regimens. However, among patients with HER2-negative tumors, there was no difference in survival between the chemotherapy regimens.

The absenceof any effect of anthracyclines observed in patients with HER2-negative disease suggests that this group of patients could be spared unnecessary toxic effects related to the use of this class of agents and raises questions as to the appropriateness of control arms in randomized clinical trials in which anthracycline-based regimens are used in unselected patient populations, the authors write.

In an accompanying editorial, Soonmyung Paik, M.D., of the National Surgical Adjuvant Breast and Bowel Project in Pittsburgh and colleagues point out that HER2 status alone may not be enough to determine who should receive anthracyclines, given the molecular differences among different subtypes of breast cancer.

Optimization of adjuvant chemotherapy for patients diagnosed with breast cancer will depend on defining the baseline prognosis and chemosensitivity of each subclass of breast cancer beyond those crudely defined by HER2 status alone, the editorialists write.


'/>"/>

Contact: Andrea Widener
jncimedia@oxfordjournals.org
301-841-1287
Journal of the National Cancer Institute
Source:Eurekalert

Related medicine news :

1. Vision restoration therapy shown to improve brain activity in brain injured patients
2. Broad-based group of physicians calls for improvement in stroke treatment
3. Frequent Prostate Screens Fail to Improve Aggressive Cancer Diagnoses
4. Pill box organizers increase HIV patients adherence and improve viral suppression
5. Treating depression may improve recovery of heart rate variability following coronary syndromes
6. Study Demonstrates Marteks Algal DHA Oil Improves Blood Triglyceride Lipid Levels
7. AWWA, National Association of Water and Sanitation of Mexico, Agree to Share Expertise and Resources for Improved Water Supply
8. Exercise and yoga improves quality of life in women with early-stage breast cancer
9. QI projects may -- or may not -- improve patient safety and outcomes
10. National Association for Sport and Physical Education Partners with S&S Worldwide to Help Improve Childrens Fitness
11. MedQuist Re-launches New, Improved Web Site
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... , ... October 13, 2017 , ... The Visiting Nurse ... Market. Featuring a collection of specialty vendors and unique items from across the nation, ... quality-focused health and wellness services offered by the VNA. The boutique will be ...
(Date:10/13/2017)... VA (PRWEB) , ... October 13, 2017 , ... ... of DevOps and Agile Software Development, has been awarded a contract by the ... Blanket Purchase Agreement (BPA) aims to accelerate the enterprise use of Agile methodologies ...
(Date:10/12/2017)... New Orleans, LA (PRWEB) , ... October 12, 2017 , ... ... fitness centers in the U.S., announced today its plans to open a flagship location ... club will occupy the former Rooms To Go store next to Office Depot in ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... delivery system that we intend to develop to enable prevention of a major ... to severe hearing loss, especially in pediatric patients. For cisplatin, hearing loss is ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... been named one of Michigan’s 2017 Best and Brightest in Wellness® by Best ... in Wellness® awards program on Friday, Oct. 20 from 7:30 a.m. to 2 ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... , Oct. 11, 2017  BioPharmX Corporation (NYSE MKT: ... that developed an innovative way to use nonlinear optical ... delivery of new drugs. ... Dermatology Conference will show how researchers from BioPharmX and ... Medical School used a suite of imaging techniques in ...
(Date:10/11/2017)... 11, 2017  True Health, a leader in ... effort during National Breast Cancer Awareness month to ... Research recently ... that more than 10 million American women are ... BRCA1 or BRCA2 and have not had testing. These ...
(Date:10/10/2017)... -- NDS received FDA 510(k) clearance in May 2017 for its highly ... designed for endoscopy environments. An innovative secondary monitor solution, ZeroWire ... support the improvement of patient outcomes, procedural efficiency, and the lowering ... ... ...
Breaking Medicine Technology: