Guideline Title
Initial hormonal management of androgen-sensitive metastatic, recurrent, or progressive prostate cancer: 2006 update of an American Society of Clinical Oncology practice guideline.
Bibliographic Source(s)
Loblaw DA, Virgo KS, Nam R, Somerfield MR, Ben-Josef E, Mendelson DS, Middleton R, Sharp SA, Smith TJ, Talcott J, Taplin M, Vogelzang NJ, Wade JL 3rd, Bennett CL, Scher HI, American Society of Clinical Oncology. Initial hormonal management of androgen-sensitive metastatic, recurrent, or progressive prostate cancer: 2006 update of an American Society of Clinical Oncology practice guideline. J Clin Oncol 2007 Apr 20;25(12):1596-605. [29 references] PubMed  |
Guideline Status
This is the current release of the guideline.
This guideline updates a previous version: Loblaw DA, Mendelson DS, Talcott JA, Virgo KS, Somerfield MR, Ben-Josef E, Middleton R, Porterfield H, Sharp SA, Smith TJ, Taplin ME, Vogelzang NJ, Wade JL Jr, Bennett CL, Scher HI. American Society of Clinical Oncology recommendations for the initial hormonal management of androgen-sensitive metastatic, recurrent, or progressive prostate cancer. J Clin Oncol 2004 Jul 15;22(14):2927-41.
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Disease/Condition(s)
Metastatic, recurrent, or progressive androgen-sensitive prostate cancer
Guideline Category
Management
Treatment
Clinical Specialty
Oncology
Radiation Oncology
Urology
Intended Users
Physicians
Guideline Objective(s)
To update the 2004 American Society of Clinical Oncology (ASCO) guideline on initial hormonal management of androgen-sensitive, metastatic, recurrent, or progressive prostate cancer (PCa)
Target Population
Men with metastatic, recurrent, or progressive androgen-sensitive prostate cancer
Interventions and Practices Considered
Standard Initial Treatment Options
- Bilateral orchiectomy
- Medical castration with luteinizing hormone releasing hormone (LHRH) agonists
- Diethylstilbestrol (DES) (no longer commercially available in North America and is not recommended as a standard first-line treatment option)
- Patient education/counseling
Castration Alternatives
- Nonsteroidal antiandrogen monotherapy (e.g., flutamide, nilutamide, and bicalutamide)
- Steroidal antiandrogen (not recommended as monotherapy)
Combination Therapy
Medical or surgical castration plus a nonsteroidal antiandrogen
Early Androgen Deprivation Therapy versus Deferred Therapy (early therapy not strongly recommended)
Major Outcomes Considered
- Overall survival
- Progression-free survival
- Toxicity of treatment
- Time to treatment failure
- Disease progression
- Complications due to progression
- Cost-effectiveness
- Time off therapy
- Time to hormone resistance
- Quality of life
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Methods Used to Collect/Select the Evidence
Hand-searches of Published Literature (Primary Sources)
Searches of Electronic Databases
Description of Methods Used to Collect/Select the Evidence
Literature Review and Data Collection
For the 2006 update, the MEDLINE database (January 2003 through March 2006; National Library of Medicine, Bethesda, MD) was searched to identify relevant information from the published literature. A series of searches was conducted using the medical subject headings "prostatic neoplasms" and "androgen antagonists," and the text words "intermittent," "combined androgen," and "metastatic." These terms were combined with the following study design-related subject headings or text words: "meta-analysis," "systematic," trial," and "randomized." Search results were limited to human studies and English-language articles.
In addition, the Cochrane Database of Systematic Reviews was searched using the phrase "prostate cancer," and directed searches were made of the reference lists from primary articles. Authors were contacted for clarification where needed. The Physician Data Query clinical trials database (http://www.cancer.gov/search/clinical_trials/ ) was searched for ongoing clinical trials in the identified subject areas.
Inclusion and Exclusion Criteria
Table 1 in the original guideline document describes the details of the inclusion criteria and outcome variables for each question addressed in this guideline. For each guideline question, letters, editorials, and articles published in a language other than English were not considered. In addition, for questions 4 (early vs. deferred androgen deprivation therapy [ADT]) and 5 (intermittent versus continuous ADT), the following were excluded:
- Participants previously treated with hormonal therapy
- Randomized clinical trials targeting men undergoing radiation as primary therapy
- Nonrandomized prospective studies
- Retrospective studies
- Trials or trial arms that used diethylstilbestrol
Number of Source Documents
Seven randomized controlled trials (four new), one systematic review, one meta-analysis (new), one Markov model, and one delta-method 95% confidence interval (CI) procedure for active controlled trials (new) informed the guideline update.
Methods Used to Assess the Quality and Strength of the Evidence
Not stated
Rating Scheme for the Strength of the Evidence
Methods Used to Analyze the Evidence
Review of Published Meta-Analyses
Systematic Review
Description of the Methods Used to Analyze the Evidence
Methods Used to Formulate the Recommendations
Expert Consensus
Description of Methods Used to Formulate the Recommendations
An evidence-based approach incorporating consensus by experts was the model used to create the recommendations. To this end, a subset of the original writing committee met via teleconference in February and March 2006 to consider the evidence for each of the 2004 recommendations. The guideline update was circulated in draft form to the full Expert Panel for review and approval. Suggestions from the Expert Panel were incorporated into the document, yielding a final set of recommendations.
Rating Scheme for the Strength of the Recommendations
Cost Analysis
One article was reviewed that showed early therapy is associated with higher costs and greater frequency of treatment-related adverse effects.
Method of Guideline Validation
Internal Peer Review
Description of Method of Guideline Validation
The draft guideline was submitted to the American Society of Clinical Oncology (ASCO) Health Services Committee (HSC) for review and was endorsed in July 2006. The ASCO Board reviewed and approved the document in November 2006. Final text editing was performed by two of the guideline authors.
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Major Recommendations
- What are the standard initial treatment options?
2006 Recommendation: Bilateral orchiectomy or medical castration with luteinizing hormone-releasing hormone (LHRH) agonists are the recommended initial treatments for metastatic prostate cancer. A full discussion between practitioner and patient should occur to determine which is best for the patient. Diethylstilbestrol (DES) should not be considered as a standard first-line treatment option and is no longer commercially available in North America.
- Are antiandrogens as effective as other castration therapies?
2006 Recommendation: Nonsteroidal antiandrogen (NSAA) monotherapy may be discussed as an alternative, but steroidal antiandrogen (AA) monotherapy should not be offered.
- Is combined androgen blockade better than castration alone?
2006 Recommendation: Combined androgen blockade (CAB) should be considered.
- Does early androgen-deprivation treatment (ADT) improve outcomes over deferred therapy?
2006 Recommendation: For patients with metastatic or progressive prostate cancer, there is a moderate decrease (17%) in relative risk (RR) for prostate cancer–specific mortality, a moderate increase (15%) in RR for non–prostate cancer–specific mortality, and no overall survival advantage for immediate institution of androgen-deprivation treatment (ADT) versus waiting until symptom onset for patients. Therefore, the Panel cannot make a strong recommendation for the early use of ADT. Prostate-specific antigen (PSA) kinetics and other metrics allow the identification of populations at high risk for prostate cancer–specific and overall mortality. Further studies must be completed to assess whether patients with adverse prognostic factors gain a survival advantage from immediate ADT. If a patient decides to wait until symptoms for ADT, he should have regular visits for monitoring. For patients with recurrent disease, clinical trials should be considered if available.
- What is the role of intermittent androgen blockade?
2006 Recommendation: Currently, data are insufficient to support the use of intermittent androgen blockade outside of clinical trials.
Clinical Algorithm(s)
A clinical algorithm is provided for the initial hormonal management of androgen-sensitive advanced cancer (see "Availability of Companion Documents" field in this summary).
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Evidence Supporting the Recommendations
Type of Evidence Supporting the Recommendations
The recommendations are supported by randomized controlled trials, a systematic review, a meta-analysis, one Markov model, and one delta-method 95% confidence interval (CI) procedure for active controlled trials.
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Benefits/Harms of Implementing the Guideline Recommendations
Potential Benefits
Appropriate management of androgen-sensitive, metastatic, recurrent, or progressive prostate cancer
Potential Harms
- Table 3 in the original guideline document provides a full list of adverse drug reactions seen in a randomized controlled trial of patients receiving an LHRH agonist and then either bicalutamide or placebo.
- Early therapy is associated with higher costs and greater frequency of treatment-related adverse effects. Deferred treatment risks the development of hormone independence in the tumor as well as serious complications such as spinal cord complications. The effects of these complications occurring during the treatment deferral period might not be completely reversible.
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Qualifying Statements
It is important to realize that many management questions have not been comprehensively addressed in randomized trials and guidelines cannot always account for individual variation among patients. A guideline is not intended to supplant physician judgment with respect to particular patients or special clinical situations and cannot be considered inclusive of all proper methods of care or exclusive of other treatments reasonably directed at obtaining the same results. Accordingly, the American Society of Clinical Oncology (ASCO) considers adherence to this guideline to be voluntary, with the ultimate determination regarding its application to be made by the physician in light of each patient's individual circumstances. In addition, the guideline describes administration of therapies in clinical practice; it cannot be assumed to apply to interventions performed in the context of clinical trials, given that clinical studies are designed to test innovative and novel therapies in a disease and setting for which better therapy is needed. Because guideline development involves a review and synthesis of the latest literature, a practice guideline also serves to identify important questions for further research and those settings in which investigational therapy should be considered.
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Implementation of the Guideline
Description of Implementation Strategy
An implementation strategy was not provided.
Implementation Tools
Clinical Algorithm
Patient Resources
Personal Digital Assistant (PDA) Downloads
Slide PresentationFor information about availability, see the Availability of Companion Documents and Patient Resources fields below.
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Institute of Medicine (IOM) National Healthcare Quality Report Categories
IOM Care Need
Living with Illness
IOM Domain
Effectiveness
Patient-centeredness
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Identifying Information and Availability
Bibliographic Source(s)
Loblaw DA, Virgo KS, Nam R, Somerfield MR, Ben-Josef E, Mendelson DS, Middleton R, Sharp SA, Smith TJ, Talcott J, Taplin M, Vogelzang NJ, Wade JL 3rd, Bennett CL, Scher HI, American Society of Clinical Oncology. Initial hormonal management of androgen-sensitive metastatic, recurrent, or progressive prostate cancer: 2006 update of an American Society of Clinical Oncology practice guideline. J Clin Oncol 2007 Apr 20;25(12):1596-605. [29 references] PubMed  |
Adaptation
Not applicable: The guideline was not adapted from another source.
Date Released
2004 Jun 7 (revised 2007 Apr)
Guideline Developer(s)
American Society of Clinical Oncology - Medical Specialty Society
Source(s) of Funding
American Society of Clinical Oncology (ASCO)
Guideline Committee
American Society of Clinical Oncology (ASCO) Metastatic Prostate Cancer Expert Panel
Composition of Group That Authored the Guideline
Primary Authors: D. Andrew Loblaw; Katherine S. Virgo; Robert Nam; Mark R. Somerfield; Edgar Ben-Josef; David S. Mendelson; Richard Middleton; Stewart A. Sharp; Thomas J. Smith; James Talcott; Maryellen Taplin; Nicholas J. Vogelzang; James L. Wade III; Charles L. Bennett; Howard I. Scher
ASCO Metastatic Prostrate Cancer Expert Panel: Howard I. Scher, MD, Cochair Memorial Sloan-Kettering Cancer Center; Charles L. Bennett, MD, PhD, Cochair VA Chicago Health Care System-Lakeside and the Robert H. Lurie Comprehensive Cancer Center of Northwestern University; Edgar Ben-Josef, MD, Wayne State University; D. Andrew Loblaw, MD, MSc, Sunnybrook Health Sciences Centre; David S. Mendelson, MD, Premiere Oncology of Arizona; Richard Middleton, MD, University of Utah Medical School; Robert Nam, MD, MSc, Sunnybrook Health Sciences Centre; Thomas J. Smith, MD, Massey Cancer Center, Medical College of Virginia; Stewart A. Sharp, MD, Danville Hematology & Oncology, Inc; James Talcott, MD,MPH, Massachusetts General Hospital; Maryellen Taplin, MD, Dana-Farber Cancer Institute; Katherine S. Virgo, PhD, Saint Louis University & Department of Veterans' Affairs Medical Center; Nicholas J. Vogelzang, MD, University of Chicago Cancer Research Center; James L. Wade III, MD, Cancer Care Specialists of Central Illinois
Financial Disclosures/Conflicts of Interest
Although all authors completed the disclosure declaration, the following authors or their immediate family members indicated a financial interest.
No conflict exists for drugs or devices used in a study if they are not being evaluated as part of the investigation. For a detailed description of the disclosure categories, or for more information about ASCO's conflict of interest policy, please refer to the Author Disclosure Declaration and the Disclosures of Potential Conflicts of Interest section in Information for Contributors.
Employment: N/A Leadership: N/A Consultant: D. Andrew Loblaw, Astra Zeneca; Nicholas J. Vogelzang, Sanofi Aventis; Charles L. Bennett, Sanofi, Millenium Stock: N/A Honoraria: D. Andrew Loblaw, Astra Zeneca; James Talcott, Dendreon; Maryellen Taplin, Astra Zeneca; Nicholas J. Vogelzang, Astra Zeneca Research Funds: D. Andrew Loblaw, Astra Zeneca; Nicholas J. Vogelzang, Astra Zeneca; Charles L. Bennett, Amgen, Sanofi Testimony: N/A Other: D. Andrew Loblaw, Astra Zeneca, Sanofi-Aventis
Guideline Status
This is the current release of the guideline.
This guideline updates a previous version: Loblaw DA, Mendelson DS, Talcott JA, Virgo KS, Somerfield MR, Ben-Josef E, Middleton R, Porterfield H, Sharp SA, Smith TJ, Taplin ME, Vogelzang NJ, Wade JL Jr, Bennett CL, Scher HI. American Society of Clinical Oncology recommendations for the initial hormonal management of androgen-sensitive metastatic, recurrent, or progressive prostate cancer. J Clin Oncol 2004 Jul 15;22(14):2927-41.
Availability of Companion Documents
Patient Resources
The following is available:
Please note: This patient information is intended to provide health professionals with information to share with their patients to help them better understand their health and their diagnosed disorders. By providing access to this patient information, it is not the intention of NGC to provide specific medical advice for particular patients. Rather we urge patients and their representatives to review this material and then to consult with a licensed health professional for evaluation of treatment options suitable for them as well as for diagnosis and answers to their personal medical questions. This patient information has been derived and prepared from a guideline for health care professionals included on NGC by the authors or publishers of that original guideline. The patient information is not reviewed by NGC to establish whether or not it accurately reflects the original guideline's content.
NGC Status
This NGC summary was completed by ECRI on August 11, 2004. The information was verified by the guideline developer on August 13, 2004. This NGC summary was updated by ECRI Institute on June 26, 2007. The updated information was verified by the guideline developer on July 16, 2007.
Copyright Statement
This summary is based on the original guideline, which is subject to the American Society of Clinical Oncology's copyright restrictions.
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