Navigation Links
Primary androgen deprivation therapy ineffective for most men with early prostate cancer
Date:3/17/2014

WASHINGTON A study of more than 15,000 men with early stage prostate cancer finds that those who received androgen deprivation as their primary treatment instead of surgery or radiation did not live any longer than those who received no treatment.

The research team, led by scientists at Georgetown Lombardi Comprehensive Cancer Center, say that the risks of serious adverse events associated with the treatment which has been linked to impaired cognition, heart disease, diabetes and other disorders "mitigates against any clinical or policy rationale for use of primary androgen deprivation therapy in these men."

The findings, reported Monday in the Journal of Clinical Oncology, draw from cancer registries linked with extensive electronic medical records in three, large integrated health plans. The men included in the study had prostate cancer that had not spread beyond the organ (localized) and did not have surgery or radiation therapy, considered curative treatment.

Androgen deprivation therapy suppresses the production of testosterone, the male hormone said to fuel growth of prostate cancer. The therapy improves survival when given with radiation for later stages of disease, and is considered the standard of care for men who have metastatic prostate cancer. Effectiveness of primary androgen deprivation therapy (PADT) has not been established.

"This study is the most comprehensive study on the effectiveness of PADT for men who forgo radiation and surgery for their localized prostate cancer, and it tells us there is no strong reason to use it in most patients," says the study's lead investigator, Arnold Potosky, PhD, a professor of oncology and director of health services research at Georgetown Lombardi. "We found only a small survival benefit for primary androgen deprivation therapy compared to no therapy in men diagnosed with higher-risk localized prostate cancer."

Use of primary androgen deprivation therapy for early stage prostate cancer is widespread. Despite the lack of randomized clinical trials to test its effectiveness, recent studies have reported it as the second most common treatment, after radiotherapy, for clinically localized prostate cancer among older men age 65 and older. The study did not compare androgen deprivation therapy directly to either surgery or radiation therapy, the two main curative treatment options for prostate cancer.

While the study did not probe the reasons why physicians prescribe the treatment in this setting, it was much more common in older men and those with higher risk of disease progression. Potosky speculates that men and their doctors may feel the treatment is a useful option to delay progression of prostate cancer for men who are not good candidates for, or who prefer to avoid, surgery or radiation due to their side-effects.

"Primary androgen deprivation therapy may be preferable to some men with early stage prostate cancer who would prefer to do something rather than watch and wait for further signs of progression to occur later and then need treatments," Potosky adds. "However, using PADT by itself immediately after diagnosis in the hopes of limiting cancer's progression does not extend survival, according to this study."

The researchers are now using their database of 15,170 patients to examine rates of potential side effects from the treatment.

"Given the aging American population, more men are likely to be faced with prostate cancer so its is very important to understand the whether the risks of primary androgen deprivation therapy outweigh the survival benefit," he says. "Ultimately, this is a decision for men and their doctors to make together, and we hope that our study provides some helpful information to guide these decisions."


'/>"/>

Contact: Karen Teber
km463@georgetown.edu
Georgetown University Medical Center
Source:Eurekalert

Related medicine news :

1. Rural primary care physicians are committed to professionalism, quality improvement
2. New study shows core factors and strategies to turn primary care practices into PCMHs
3. Katie Johnson, Author of Red Flags for Primary Teachers, Works with Fifth Graders to Investigate Their VIsion Problems When Reading
4. Live Primary Care CME (Continuing Medical Education) Faculty and Agenda Announced for Presidents' Week Conference in February 2014 to Be Held in Maui, Hawaii
5. Sunflower Medical Group Opens New Heartland Primary Care Location in Lenexa with Urgent Care Clinic
6. Center for Primary Care Celebrates 20th Anniversary
7. Primary care key to management of patients with HIV infection
8. Expanding primary care capacity by reducing inefficiency
9. Red Flags for Primary Teachers, Katie Johnson's Book about Children's Vision, Wins in The Great Midwest Book Festival Contest
10. Anxiety help comes, eventually, via primary care
11. Physician shortage could be cut by new primary care models, study finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2016)... Columbus, OH (PRWEB) , ... February 12, 2016 , ... ... families of the greater Columbus, OH area. The latest campaign focuses on the fight ... the disease. Donations are now being accepted here . , Carmen is a ...
(Date:2/12/2016)... ... February 12, 2016 , ... J ... communities by continuing it’s commitment to act as Agents of Change in the ... closely with area homeless families to fulfill immediate needs and help them move ...
(Date:2/12/2016)... ... February 12, 2016 , ... US Sport Camps is pleased to ... Club, located in Norwalk, serves as the host site and directing the camps is ... “We have had successful camps in recent years around Des Moines and are fortunate ...
(Date:2/12/2016)... ... ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh in Abilene, ... the real facts surrounding all those Bible stories. For generations families have gathered to ... Yisrayl says there is more to these than just mere “stories”. , The ...
(Date:2/11/2016)... (PRWEB) , ... February 12, 2016 , ... Fitbody Personal ... are a fun and exciting way to get fit and healthy. Located in Phoenixville, ... announces dates for a class designed for horseback riders who want to lose weight ...
Breaking Medicine News(10 mins):
(Date:2/12/2016)... 2016  Eli Lilly and Company (NYSE: LLY ) ... (pemetrexed disodium) vitamin regimen patent would not presently be infringed ... France , Italy and ... only with dextrose solution.  --> ... of Appeal held that Lilly,s patent would be indirectly infringed ...
(Date:2/12/2016)... , Ungarn, February 12, 2016 ... das sich auf den ungedeckten medizinischen Bedarf ... positive Ergebnisse seines klinischen Forschungsprogramms bekannt. Das ... beschäftigt, ergab Verbesserungen ihrer respiratorischen Funktionen und ... ltd , ein Medizintechnikunternehmen, das sich auf ...
(Date:2/11/2016)... Calif., Feb. 11, 2016 PRO-DEX, INC. (NasdaqCM: PDEX) ... ended December 31, 2015. The Company also filed its Quarterly ... year 2016 with the Securities and Exchange Commission today. ... 31, 2015 --> --> ... increased $2.6 million, or 95%, to $5.4 million from $2.8 ...
Breaking Medicine Technology: