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Structured Abstract
Objectives:
To review the evidence base for treating patients with gout, both acute attacks and chronic disease. The review specifically focuses on the management of patients with gout in the primary care setting.
Data sources:
We searched Medline, EMBASE, the Cochrane Collection, and the Web of Science using the search terms “gout,” and “gouty,” and terms for tophi (from January 1, 2010 to April 23, 2015, or at least one year prior to the search dates for the most recent systematic reviews). We also obtained relevant references from 28 recent systematic reviews that cover nearly all of the Key Questions. We searched Clinicaltrials.gov and the Web of Science for recently completed studies and unpublished or non-peer-reviewed study findings. Searches were not limited by language of publication.
Review methods:
We used standard systematic review methods including duplicate screening and data extraction from relevant studies, and existing tools to assess the quality of previously published systematic reviews, the risk of bias of individual studies, and the strength of evidence across studies.
Results:
High-strength evidence supports the use of colchicine, nonsteroidal anti-inflammatory drugs (NSAIDs), and systemic corticosteroids to reduce pain in patients with acute gout. Moderate-strength evidence supports the use of animal-derived ACTH formulation for this condition. Moderate-strength evidence supports the finding that low-dose colchicine is as effective as higher-dose colchicine for treating acute gout attacks, and has fewer side effects. Evidence is insufficient from randomized controlled trials that assess symptomatic outcomes for specific dietary therapies. The evidence is also insufficient to support or refute the effectiveness of particular Traditional Chinese Medicine practices (e.g., herbal mixtures, acupuncture, and moxibustion) for symptomatic outcomes. High-strength evidence supports that urate lowering therapy (ULT, with allopurinol or febuxostat) reduces serum urate level. However low-strength evidence supports the finding that treating to a specific target serum urate level reduces the risk of gout attacks. High-strength evidence supports the finding that ULT does not reduce the risk of acute gout attacks within the first 6 months after initiation. However, moderate-strength evidence supports a role for ULT in reducing the risk of acute gout attacks after about 1 year of treatment. Low-strength evidence supports treating to a specific target serum urate level to reduce the risk of gout attacks. High-strength evidence supports the finding that prophylactic therapy with low-dose colchicine or low dose NSAIDs reduces the risk of acute gout attacks when beginning ULT. No criteria for when to discontinue ULT have been validated.
Conclusions:
Effective treatments for acute gout include colchicine, NSAIDs, and corticosteroids/animal-derived ACTH formulation. Urate lowering therapy achieves its goal of lowering serum urate levels. Urate lowering should lead to a reduction in gout attacks, but the benefits and harms of long term urate lowering therapy have yet to be directly demonstrated. Patient preferences and other clinical circumstances are likely to be important in decisions about treating patients with gout.
Contents
- Preface
- Acknowledgments
- Key Informants
- Technical Expert Panel
- Peer Reviewers
- Executive Summary
- Introduction
- Methods
- Criteria for Inclusion/Exclusion of Studies in the Review
- Searching for the Evidence
- Data Abstraction and Data Management
- Assessment of Methodological Risk of Bias of Individual Studies
- Data Synthesis/Analysis
- Grading the Strength of the Body of Evidence for Each Key Question
- Applicability
- Peer Review and Public Commentary
- Results
- Introduction
- Results of Literature Searches
- Key Questions 1a–c Acute Gout Treatment
- Key Question 2 Dietary and Lifestyle Management of Gout
- Key Question 3 Pharmacologic Management of Hyperuricemia in Gout Patients
- Key Question 4 Treatment Monitoring of Patients with Gout
- Key Question 5 Discontinuation of Pharmaceutical Management for Patients on Acute or Chronic Gout Medications
- Discussion
- References
- Abbreviations/Acronyms
- Appendix A Search Strategy
- Appendix B List of Excluded Studies
Prepared for: Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services1, . Contract No. 290-2012-00006-I Prepared by: RAND Southern California Evidence-Based Practice Center, Santa Monica, CA
Suggested citation:
Shekelle PG, FitzGerald J, Newberry SJ, Motala A, O'Hanlon CE, Okunogbe A, Tariq A, Han D, Dudley W, Shanman R, Booth M. Management of Gout. Comparative Effectiveness Review No. 176. (Prepared by the RAND Southern California Evidence-based Practice Center under Contract No. 290-2012-00006-I.) AHRQ Publication No.16-EHC017-EF. Rockville, MD: Agency for Healthcare Research and Quality; March 2016. www.effectivehealthcare.ahrq.gov/reports/final.cfm.
This report is based on research conducted by the RAND Southern California Evidence-based Practice Center (SCEPC) under contract to the Agency for Healthcare Research and Quality (AHRQ), Rockville, MD (Contract No. 290-2012-00006-I). The findings and conclusions in this document are those of the authors, who are responsible for its contents; the findings and conclusions do not necessarily represent the views of AHRQ. Therefore, no statement in this report should be construed as an official position of AHRQ or of the U.S. Department of Health and Human Services.
None of the investigators has any affiliations or financial involvement related to the material presented in this report.
The information in this report is intended to help health care decisionmakers—patients and clinicians, health system leaders, and policymakers, among others—make well informed decisions and thereby improve the quality of health care services. This report is not intended to be a substitute for the application of clinical judgment. Anyone who makes decisions concerning the provision of clinical care should consider this report in the same way as any medical reference and in conjunction with all other pertinent information, i.e., in the context of available resources and circumstances presented by individual patients.
AHRQ or U.S. Department of Health and Human Services endorsement of any derivative products that may be developed from this report, such as clinical practice guidelines, other quality enhancement tools, or reimbursement or coverage policies may not be stated or implied.
This report may periodically be assessed for currency of conclusions. If an assessment is done, the resulting surveillance report describing the methodology and findings will be found on the Effective Health Care Program Web site at www.effectivehealthcare.ahrq.gov. Search on the title of the report.
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.ahrq.gov
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- Management of GoutManagement of Gout
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