Navigation Links
ASTRO issues guideline on the role of postoperative radiation therapy for endometrial cancer
Date:4/23/2014

Fairfax, Va., April 23, 2014 The American Society for Radiation Oncology (ASTRO) has issued a new guideline, "The Role of Postoperative Radiation Therapy for Endometrial Cancer: An ASTRO Evidence-Based Guideline," that details the use of adjuvant radiation therapy in the treatment of endometrial cancer. The guideline's executive summary is published in the May-June 2014 issue of Practical Radiation Oncology (PRO), the official clinical practice journal of ASTRO. The full-length guideline is available as an open-access article online at http://www.practicalradonc.org.

ASTRO's Guidelines Panel of 17 leading gynecologic specialists compiled and reviewed extensive data from 330 studies from MEDLINE, EMBASE and the Specialized Register of the Cochrane Gynaecological Cancer Review Group published from 1980 to 2011. The data population selected for the guideline was defined as women of all races, age 18 or older, with stage I-IV endometrial cancer of any histologic type or grade. The studies included patients who underwent a hysterectomy followed by no adjuvant therapy, or pelvic and/or vaginal brachytherapy with or without systemic chemotherapy. The panel identified five key questions about the role of adjuvant radiation therapy and developed a series of recommendations to address each question.

The first Key Question addresses which patients with endometrioid endometrial cancer require no additional therapy after hysterectomy. For patients with no residual disease in the hysterectomy specimen despite positive biopsy or grade 1 or 2 cancers with either no invasion or <50 percent myometrial invasion, especially when no other high-risk features are present, no adjuvant radiation therapy is a reasonable option. Patients with grade 3 cancers without myometrial invasion or grade 1 or 2 cancers with <50 percent myometrial invasion and higher risk factors such as age >60 and/or lymphovascular space invasion could reasonably be treated with or without vaginal cuff brachytherapy.

Key Question 2 examines which patients with endometrioid endometrial cancer should receive vaginal cuff radiation. Evidence demonstrates that cuff brachytherapy is as effective as pelvic radiation therapy at preventing vaginal recurrence for patients with 1) grade 1 or 2 cancers with ≥50 percent myometrial invasion or 2) grade 3 tumors with <50 percent myometrial invasion. Vaginal cuff brachytherapy is preferred to pelvic radiation in patients with these risk factors particularly in patients who have had comprehensive nodal assessment.

Key Question 3 details which women should receive postoperative external beam radiation. Patients with early stage endometrial cancer which is grade 3 with ≥50 percent myometrial invasion or cervical stroma invasion are felt to benefit from pelvic radiation to reduce the risk of pelvic recurrence. Patients with grade 1 or 2 tumors with ≥50 percent myometrial invasion may also benefit from pelvic radiation to reduce pelvic recurrence rates if other risk factors are presents such as age >60 years and/or lymphovascular space invasion. For patients with positive nodes or involved uterine serosa, ovaries/fallopian tubes, vagina, bladder or rectum, the best available evidence suggests that treatment should include external beam radiation therapy as well as adjuvant chemotherapy. Chemotherapy or radiation therapy alone may be considered for some patients based on pathologic risk factors for pelvic recurrence.

Key Question 4 addresses when brachytherapy should be used in addition to external beam radiation. The panel noted that data is lacking to validate the use of brachytherapy after pelvic radiation and that retrospective studies show little conclusive evidence of a benefit, albeit with small patient numbers. Use of vaginal brachytherapy in patients also undergoing pelvic external beam radiation may not generally be warranted, unless risk factors for vaginal recurrence are present.

Key Question 5 examines how radiation therapy and chemotherapy should be integrated in the management of endometrial cancer. The panel concluded that the best available evidence suggests that concurrent chemoradiation followed by adjuvant chemotherapy is indicated for patients with positive nodes or involved uterine serosa, ovaries/fallopian tubes, vagina, bladder or rectum. Alternative sequencing strategies with external beam radiation and chemotherapy are also acceptable. Chemotherapy or radiation therapy alone may be considered for some patients based on pathologic risk factors for pelvic recurrence.

"Several trials on the role of radiation therapy in endometrial cancer have been reported in the past five years, seeking to clarify this topic; however these trials have been interpreted in different ways, leading to inconsistent treatment recommendations," said Ann Klopp, MD, PhD, and Akila N. Viswanathan, MD, MPH, co-chairs of the ASTRO Endometrial Guideline Panel. "This guideline provides recommendations to help ensure patients receive the best possible care and to help patients and doctors make informed decisions about treatment options."

The guideline was approved by ASTRO's Board of Directors in September 2013 and is endorsed by the Society of Gynecologic Oncology. The guideline panel members included radiation oncologists, gynecologic oncologists, medical oncologists, a resident in radiation oncology and radiation physicists: Dr. Klopp (co-chair), Dr. Viswanathan (co-chair), Benjamin D. Smith, MD, Kaled Alektiar, MD, Alvin Cabrera, MD, Antonio L. Damato, PhD, Beth Erickson, MD, FASTRO, Gini Fleming, MD, David Gaffney, MD, PhD, Kathryn Greven, MD, FASTRO, Karen Lu, MD, David Miller, MD, David Moore, MD, Daniel Petereit, MD, Tracey Schefter, MD, William Small Jr., MD, FASTRO, and Catheryn Yashar, MD.


'/>"/>

Contact: Michelle Kirkwood
michellek@astro.org
703-286-1600
American Society for Radiation Oncology
Source:Eurekalert

Related medicine news :

1. Some astronauts at risk for cognitive impairment, animal studies suggest
2. Extreme energy efficiency, hot astrophysics, nuclear medicine and more at the 2014 APS April Meeting
3. Researchers develop device that simulates gastro-intestinal tract
4. Study finds astronauts hearts become more spherical in space
5. ASTRO and SSO issue consensus guideline on margins for breast-conserving surgery with WBI
6. New research on diverticular disease in the December issue of Clinical Gastroenterology and Hepatology
7. It’s a Bird, It’s a Plane, It’s a… Buddhist Monk? Crowd Gathers in the Castro for “The Temple” Book Launch
8. MEDIVATORS Inc. and Edison Nation Medical Search for New Medical Invention Ideas to Improve Detection of Lower Gastrointestinal Diseases; Search Concludes Jan. 20, 2014
9. Scientists show how cells protect their DNA from catastrophic damage
10. Gastrointestinal Bleeding Market: Global Clinical Trials Review H2 2013 in New Research Report at RnRMarketResearch.com
11. gGastro Receives ONC-ACB Certification by Drummond Group
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/28/2016)... ... ... May 26, 2016- In search of the K. Warriors, Shaolin Institute is ... Warriors” on June 4, 2016 at Ashbury Hotel and Suites 600 West Interstate 65 ... by Shaolin Institute and sanctioned by KSF (Kungfu Sanda Federation), This is the 28th ...
(Date:5/27/2016)... ... May 27, 2016 , ... Two director-level employees of Horizon ... to Women and Industry (TWIN) 2016 honorees. The award recognizes businesswomen who excel ... year, Geri Boone, Director of the MLTSS (Managed Long-Term Services and Supports) Program at ...
(Date:5/27/2016)... ... 27, 2016 , ... An educational campaign aimed at everyone ... courtesy of awareness-driven celebrities and thought leaders. It also provides insight to the ... leaders such as Bioness. , As patients feel increasingly concerned about the ...
(Date:5/27/2016)... (PRWEB) , ... May 27, 2016 , ... ... in scholarships to students studying complementary medicine. Allison Outerbridge is this year’s ... her award on May 18 at the university’s Student Leadership Awards ceremony. , ...
(Date:5/26/2016)... ... May 26, 2016 , ... ... thousands of defective respirators, according to court documents and SEC filings. A ... and Becky Tyler v. American Optical Corporation, Case No. BC588866, Los Angeles County, ...
Breaking Medicine News(10 mins):
(Date:5/27/2016)... 27, 2016 Kitov ... focused on late-stage drug development, today announced the ... of pivotal batches required for registration of KIT-302 ... This follows Kitov,s announcement in December ... met its primary efficacy endpoint. "We ...
(Date:5/26/2016)... A key trend that will ... of new treatments. Cardax, a development stage life sciences ... therapy is expected to fulfil large unmet medical needs ... studies to develop new treatments for osteoarthritis. One such ... in osteoarthritis are being investigated, and early trials of ...
(Date:5/25/2016)... , May 25,2016 ... the near-infrared Cellvizio platform for urological and surgical ... OTCQX: MKEAY) inventor of Cellvizio®, the multidisciplinary confocal ... regulatory milestone in the US with the 12 ... and Drug Administration (FDA). This new FDA clearance ...
Breaking Medicine Technology: