Publications by authors named "Saag K"

Purpose: The Excellence Network in RheumatoloGY (ENRGY) was founded in 2021 and encompasses data from more than 700 private practice rheumatology providers throughout the United States, forming a practice-based research network (PBRN).

Methods: Electronic health record (EHR) data from participating practices are aggregated, including structured data (e.g.

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  • - The report by the European Calcified Tissue Society (ECTS) outlines evidence-based recommendations for preventing and treating glucocorticoid-induced osteoporosis (GIOP) in adults, aimed at healthcare providers who may not specialize in bone health.
  • - Experts reviewed the literature and created 25 recommendations that categorize patients based on their fracture risk: medium, high, and very high, considering factors like age and history of fractures for appropriate treatment strategy.
  • - Key general measures include optimizing calcium and vitamin D intake, assessing fracture risk regularly for those on glucocorticoids for three months or longer, and minimizing fall risks among patients.
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  • - Gout is a chronic condition caused by the immune system's reaction to monosodium urate crystals due to high uric acid levels, and recent research sheds light on its inflammatory mechanisms.
  • - A large genome-wide association study (GWAS) involving 2.6 million people identified 377 genetic locations linked to gout, with a focus on 149 new loci related to urate and gout inflammation.
  • - The study also pinpointed candidate genes influencing the inflammatory response in gout, including those affecting NLRP3 inflammasome activity, and suggests a potential causal role of specific genetic factors in developing the disease.
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Epidural steroid injections (ESIs) are a common and often effective treatment for radicular back pain. While oral glucocorticoids increase fracture incidence, little is known regarding fracture risk after ESI. This study investigated the incidence of fractures among individuals who received ESI and those who did not.

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  • Methotrexate is a commonly prescribed medication for various rheumatic diseases like rheumatoid arthritis and systemic lupus erythematosus, originally developed for cancer treatment in the 1960s and approved for RA in 1988.
  • It has been used for medical abortions and can cause serious birth defects, affecting 6%-10% of pregnant women taking it, making its use complex in light of current abortion policies in the U.S. after the Dobbs ruling.
  • The Dobbs decision has influenced healthcare providers' and patients' views on methotrexate, suggesting an expanded role for rheumatologists in addressing patients' reproductive health concerns.
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Objective: The objective of this study was to ascertain pegloticase persistence and adverse events associated with concomitant immunomodulatory drug treatment in patients with gout.

Methods: We conducted a retrospective analysis of patients with gout using the American College of Rheumatology's Rheumatology Informatics System for Effectiveness registry from January 2016 through June 2020. The first pegloticase infusion defined the index date.

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Falls and osteoporosis are risk factors for fragility fractures. Bone mineral density (BMD) assessment is associated with better preventative osteoporosis care, but it is underutilized by those at high fracture risk. We created a novel electronic medical record (EMR) alert-driven protocol to screen patients in the Emergency Department (ED) for fracture risk and tested its feasibility and effectiveness in generating and completing referrals for outpatient BMD testing after discharge.

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Osteoporosis in men is an underappreciated public health issue, accounting for approximately 30% of the societal burden of osteoporosis. Although the prevalence of osteoporosis in men is lower, fracture-related morbidity and mortality rates exceed those of women. Abaloparatide is a synthetic, 34-amino acid peptide with homology to human parathyroid hormone-related protein (PTHrP), which favors bone formation by selective activation of PTH receptor type 1.

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Osteoporosis and fragility fractures are managed by clinicians across many medical specialties. The key competencies of clinicians delivering bone health care have not been systematically established. We aimed to develop a decision rule to define the threshold of adequate skills and attributes associated with clinical competency in bone health for a clinician serving as a referral source for bone health care.

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Objective: Monosodium-urate (MSU) crystal deposits can be visualized and quantified with dual-energy CT (DECT). Pegloticase lowers serum urate (SU) in uncontrolled gout patients, with methotrexate (MTX) co-therapy recommended to increase SU-lowering response rate and decrease infusion reaction risk. The literature on serial DECT-imaging during pegloticase+MTX co-therapy is sparse, with only 2 prior cases of rapid MSU deposition depletion with subsequent bone-erosion remodeling reported from a small open-label trial.

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Objective: The aim of this study was to describe the adult rheumatology workforce in the United States, assess change in rheumatology providers over time, and identify variation in rheumatology practice characteristics.

Methods: Using national Medicare claims data from 2006 to 2020, clinically active rheumatology physicians and advanced practice providers (APPs) were identified. Each calendar year was used for inclusion, exclusion, and analysis, and providers were determined to be entering, exiting, or stable based upon presence or absence in the prior or subsequent years of data.

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Objective: Glucocorticoid-induced osteoporosis (GIOP) is a common cause of secondary osteoporosis. However, glucocorticoid requiring diseases pose a risk themselves for fracture. The aim of the present study was to determine the risk of fracture associated with variety of glucocorticoid requiring diseases independently from glucocorticoid use and other risk factors for osteoporosis.

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Despite the advent of more targeted therapies, glucocorticoids (steroids) remain in chronic use (defined as > 3 months or more) by an estimated 0.5% of the population. Steroids yield symptomatic benefits for systemic and local inflammation as well as disease-modifying properties in rheumatoid arthritis, the most common disorder for their chronic use.

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Background: "Storytelling" interventions influence knowledge, attitudes and behavior to promote chronic disease management. We aimed to describe the development of a video "storytelling" intervention to increase gout knowledge and promote adherence to medications and follow-up care after an acute gout flare visit in the emergency department.

Methods: We developed a direct-to-patient storytelling intervention to mitigate modifiable barriers to gout care and promote outpatient follow-up and medication adherence.

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Objective: To assess 12-month safety and efficacy of pegloticase + methotrexate (MTX) versus pegloticase + placebo (PBO) cotherapy in a PBO-controlled, double-blind trial (A randomized, double-blind, placebo-controlled, multicenter, efficacy and safety study of methotrexate to increase response rates in patients with uncontrolled gout receiving pegloticase [MIRROR RCT]).

Methods: Patients with uncontrolled gout (serum urate level [SU] ≥7 mg/dl, oral urate-lowering therapy failure or intolerance, and presence of one or more gout symptoms [one or more tophi, two or more flares in 12 months, gouty arthropathy]) were randomized 2:1 to receive pegloticase (8-mg infusion every 2 weeks) with blinded MTX (oral 15 mg/week) or PBO for 52 weeks. Efficacy end points included proportion of responders (SU level <6 mg/dl for ≥80% of examined month) in the intent-to-treat population (ITT) (all randomized patients) during month 6 (primary end point), month 9, and month 12; proportion with resolution of one or more tophi (ITT); mean SU reduction (ITT); and time to SU-monitoring pegloticase discontinuation.

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Introduction: Kidney transplant (KT) recipients have a high prevalence and severity of gout. Pegloticase (pegylated recombinant uricase) rapidly metabolizes serum uric acid (sUA), and its efficacy is not impacted by kidney function.

Methods: This open-label, Phase 4 trial (PROTECT NCT04087720) examined safety and efficacy of pegloticase in 20 participants with KT > 1 year prior to enrollment and with uncontrolled gout (sUA ≥7 mg/dL, intolerance/inefficacy to urate lowering therapy, and ≥1 of the following: tophi, chronic gouty arthritis, ≥2 flares in past year) and functioning KT (estimated glomerular filtration rate [eGFR] ≥15 mL/min/1.

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Article Synopsis
  • The study investigates the prevalence of gout and serum urate levels across different racial and ethnic groups in the U.S., with a particular focus on previously unexamined disparities among Asian individuals.
  • Data from the National Health and Nutrition Examination Survey (NHANES) and the UK Biobank were used to analyze trends from 2011 to 2018, revealing a significant increase in gout prevalence among Asian Americans.
  • The findings indicate that, by 2017-2018, Asian Americans had a higher prevalence of gout (6.6%) compared to other racial groups, highlighting an urgent need to understand the socioclinical factors contributing to this disparity.
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Background: Prior studies have identified an association between hypertension and hyperuricemia; however, there has been limited research on the association between hypertension severity and hyperuricemia.

Method: We studied 997 Black and white adults with serum urate data from the reasons for geographic and racial differences in stroke (REGARDS) study. Hypertension was defined as SBP ≥ 140 mmHg or DBP ≥ 90 mmHg or self-reported use of antihypertensive medication.

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Objective: To evaluate the safety and efficacy of the nonpurine xanthine oxidase inhibitor tigulixostat for lowering serum urate level in gout patients with hyperuricemia.

Methods: We conducted a multicenter, phase II, randomized, double-blind, placebo-controlled, parallel-group, dose-finding trial. After screening, gout patients with hyperuricemia were randomly assigned, after appropriate washout, to receive daily oral administration of 50 mg, 100 mg, or 200 mg of tigulixostat, or placebo for 12 weeks.

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Objective: To examine whether the cross-sectional gene-diet interaction for prevalent hyperuricemia among women translates prospectively to risk of incident female gout.

Methods: We analyzed the interaction between genetic predisposition and adherence to a healthy dietary pattern (i.e.

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Objective: Patients with acute gout are frequently treated in the emergency department (ED) and represent a typically underresourced and understudied population. A key limitation for gout research in the ED is the timely ability to identify acute gout patients. Our goal was to refine a multicriteria, electronic medical record alert for gout flares and to determine its diagnostic characteristics in the ED.

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