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Dive into the research topics where Wayne Weng is active.

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Featured researches published by Wayne Weng.


Diabetes, Obesity and Metabolism | 2007

The usage of a simplified self‐titration dosing guideline (303 Algorithm) for insulin detemir in patients with type 2 diabetes – results of the randomized, controlled PREDICTIVE™ 303 study

Luigi Meneghini; C. Koenen; Wayne Weng; J.-L. Selam

The Predictable Results and Experience in Diabetes through Intensification and Control to Target: An International Variability Evaluation 303 (PREDICTIVE™ 303) Study (n = 5604) evaluated the effectiveness of insulin detemir, a long‐acting basal insulin analogue, using a simplified patient self‐adjusted dosing algorithm (303 Algorithm group) compared with standard‐of‐care physician‐driven adjustments (Standard‐of‐care group) in a predominantly primary care setting, over a period of 6 months. Insulin detemir was to be started once‐daily as add‐on therapy to any other glucose‐lowering regimens or as a replacement of prestudy basal insulin in patients with type 2 diabetes. Investigator sites rather than individual patients were randomized to either the 303 Algorithm group or the Standard‐of‐care group. Patients from the 303 Algorithm group sites were instructed to adjust their insulin detemir dose every 3 days based on the mean of three ‘adjusted’ fasting plasma glucose (aFPG) values (capillary blood glucose calibrated to equivalent plasma glucose values) using a simple algorithm: mean aFPG < 80 mg/dl (<4.4 mmol/l), reduce dose by 3 U; aFPG between 80 and 110 mg/dl (4.4–6.1 mmol/l), no change; and aFPG > 110 mg/dl (>1.1 mmol/l), increase dose by 3 U. The insulin detemir dose for patients in the Standard‐of‐care group was adjusted by the investigator according to the standard of care. Mean A1C decreased from 8.5% at baseline to 7.9% at 26 weeks for the 303 Algorithm group and from 8.5 to 8.0% for the Standard‐of‐care group (p = 0.0106 for difference in A1C reduction between the two groups). Mean FPG values decreased from 175 mg/dl (9.7 mmol/l) at baseline to 141 mg/dl (7.8 mmol/l) for the 303 Algorithm group and decreased from 174 mg/dl (9.7 mmol/l) to 152 mg/dl (8.4 mmol/l) for the Standard‐of‐care group (p < 0.0001 for difference in FPG reduction between the two groups). Mean body weight remained the same at 26 weeks in both groups (change from baseline 0.1 and −0.2 kg for the 303 Algorithm group and the Standard‐of‐care group respectively). At 26 weeks, 91% of the patients in the 303 Algorithm group and 85% of the patients in the Standard‐of‐care group remained on once‐daily insulin detemir administration. The rates of overall hypoglycaemia (events/patient/year) decreased significantly from baseline in both groups [from 9.05 to 6.44 for the 303 Algorithm group (p = 0.0039) and from 9.53 to 4.95 for the Standard‐of‐care group (p < 0.0001)]. Major hypoglycaemic events were rare in both groups (0.26 events/patient/year for the 303 Algorithm group and 0.20 events/patient/year for the Standard‐of‐care group; p = 0.2395). In conclusion, patients in the 303 Algorithm group achieved comparable glycaemic control with higher rate of hypoglycaemia as compared with patients in the Standard‐of‐care group, possibly because of more aggressive insulin dose adjustments. The vast majority of the patients in both groups were effectively treated with once‐daily insulin detemir therapy. The use of insulin detemir in this predominantly primary care setting achieved significant improvements in glycaemic control with minimal risk of hypoglycaemia and no weight gain.


BMJ open diabetes research & care | 2015

Clinical characteristics, complications, comorbidities and treatment patterns among patients with type 2 diabetes mellitus in a large integrated health system

Kevin M. Pantalone; Todd M. Hobbs; Brian J. Wells; Sheldon X. Kong; Michael W. Kattan; Jonathan Bouchard; Changhong Yu; Brian Sakurada; Alex Milinovich; Wayne Weng; Janine M. Bauman; Robert S. Zimmerman

Purpose To compare the prevalence of diabetes-related complications and comorbidities, clinical characteristics, glycemic control, and treatment patterns in patients with type 2 diabetes (T2D) within a large integrated healthcare system in 2008 vs 2013. Methods An electronic health record system was used to create a cross-sectional summary of all patients with T2D as on 1 July 2008 and 1 July 2013. Differences between the two data sets were assessed after adjusting for age, gender, race, and household income. Results In 2008 and 2013, 24 493 and 41 582 patients with T2D were identified, respectively, of which the majority were male (52.3% and 50.1%) and Caucasian (79% and 75.2%). The mean ages (years) were 64.8 and 64.3. The percentages of patients across the defined A1C categories were 64.3 and 66.7 for <7%, 21.1 and 18.8 for 7–7.9%, 7.8 and 7.5 for 8–8.9%, and 6.8 and 7.0 for ≥9% in 2008 and 2013, respectively. The most prevalent T2D-related comorbidities were hypertension (82.5% and 87.2%) and cardiovascular disease (26.9% and 22.3%) in 2008 and 2013, respectively. Thiazolidinedione and sulfonylurea use decreased, whereas metformin and dipeptidyl peptidase-4 inhibitor use increased in the 5-year period. Conclusions Patients with T2D are characterized by a high number of comorbidities. Over 85% of the patients had an A1C<8% within our integrated health delivery system in 2008 and 2013. In 2008 and 2013, metformin therapy was the most commonly utilized antidiabetic agent, and sulfonylureas were the most commonly utilized oral antidiabetic agent in combination with metformin. As integrated health systems assume greater shared financial risk in newer payment models, achieving glycemic targets (A1C) and the management of comorbidities will become ever-more important, for preventing diabetes-related complications, as well as to ensure reimbursement for the medical care that is rendered to patients with diabetes.


Diabetes Research and Clinical Practice | 2016

Decreasing incidence of type 2 diabetes mellitus in the United States, 2007–2012: Epidemiologic findings from a large US claims database

Wayne Weng; Yuanjie Liang; Edward S. Kimball; Todd M. Hobbs; Sheldon X. Kong; Brian Sakurada; Jonathan Bouchard

AIMS To explore epidemiological trends in type 2 diabetes mellitus (T2D) in the US between 2007 and 2012 using a large US claims database, with a particular focus on demographics, prevalence, newly-diagnosed cases, and comorbidities. METHODS Truven Health MarketScan® Databases were used to identify patients with claims evidence of T2D in the years 2007 and 2012. Newly-diagnosed T2D was characterized by an absence of any T2D claims or related drug claims for 6months preceding the index claim. Demographic and comorbidity characteristics of the prevalent and new-onset T2D groups were compared and analyzed descriptively for trends over time. RESULTS The overall prevalence of T2D remained stable from 2007 (1.24 million cases/15.07 million enrolled; 8.2%) to 2012 (2.04 million cases/24.52 million enrolled; 8.3%), while the percentage of newly-diagnosed cases fell dramatically from 2007 (152,252 cases; 1.1%) to 2012 (147,011 cases; 0.65%). The mean age of patients with prevalent T2D was similar in 2007 (60.6y) and 2012 (60.0y), while the mean age of newly-diagnosed T2D patients decreased by 3years from 2007 (57.7y) to 2012 (54.8y). Hypertension and hyperlipidemia were the most common comorbidities, evident in 50-75% of T2D patients, and increased markedly from 2007 to 2012 in both prevalent and new-onset T2D populations. Cardiovascular disease decreased slightly in prevalent (-0.9%) and new-onset (-2.8%) cases. CONCLUSIONS This large US health claims database analysis suggests stabilization in prevalence and declining incidence of T2D over a recent 5-year period, a downward shift in age at T2D diagnosis, but increases in several comorbidities.


Journal of Medical Economics | 2016

Drug usage patterns and treatment costs in newly-diagnosed type 2 diabetes mellitus cases, 2007 vs 2012: findings from a large US healthcare claims database analysis.

Wayne Weng; Y. Liang; Edward S. Kimball; Todd M. Hobbs; Sheldon X. Kong; Brian Sakurada; Jonathan Bouchard

Abstract Objective To explore trends in demographics, comorbidities, anti-diabetic drug usage, and healthcare utilization costs in patients with newly-diagnosed type 2 diabetes mellitus (T2DM) using a large US claims database. Methods For the years 2007 and 2012, Truven Health Marketscan Research Databases were used to identify adults with newly-diagnosed T2DM and continuous 12-month enrollment with prescription benefits. Variables examined included patient demographics, comorbidities, inpatient utilization patterns, healthcare costs (inpatient and outpatient), drug costs, and diabetes drug claim patterns. Results Despite an increase in the overall database population between 2007–2012, the incidence of newly-diagnosed T2DM decreased from 1.1% (2007) to 0.65% (2012). Hyperlipidemia and hypertension were the most common comorbidities and increased in prevalence from 2007 to 2012. In 2007, 48.3% of newly-diagnosed T2DM patients had no claims for diabetes medications, compared with 36.2% of patients in 2012. The use of a single oral anti-diabetic drug (OAD) was the most common diabetes medication-related claim (46.2% of patients in 2007; 56.7% of patients in 2012). Among OAD monotherapy users, metformin was the most commonly used and increased from 2007 (74.7% of OAD monotherapy users) to 2012 (90.8%). Decreases were observed for sulfonylureas (14.1% to 6.2%) and thiazolidinediones (7.3% to 0.6%). Insulin, predominantly basal insulin, was used by 3.9% of patients in 2007 and 5.3% of patients in 2012. Mean total annual healthcare costs increased from


BMJ open diabetes research & care | 2017

Treatment patterns and clinical characteristics of patients with type 2 diabetes mellitus according to body mass index: findings from an electronic medical records database

Wayne Weng; Ye Tian; Edward S. Kimball; Sheldon X. Kong; Jonathan Bouchard; Todd M. Hobbs; Brian Sakurada

13,744 in 2007 to


Clinical Therapeutics | 2016

Longitudinal Changes in Medical Services and Related Costs in a Single Cohort of Patients Newly Diagnosed With Type 2 Diabetes, 2006 to 2012.

Wayne Weng; Yuanjie Liang; Edward S. Kimball; Todd M. Hobbs; Sheldon X. Kong; Brian Sakurada; Jonathan Bouchard

15,175 in 2012, driven largely by outpatient services, although costs in all individual categories of healthcare services (inpatient and outpatient) increased. Conversely, total drug costs per patient were lower in 2012 compared with 2007. Conclusions Despite a drop in the rate of newly-diagnosed T2DM from 2007 to 2012 in the US, increased total medical costs and comorbidities per individual patient suggest that the clinical and economic trends for T2DM are not declining.


Diabetes Care | 2018

Clinical Inertia in Type 2 Diabetes Management: Evidence From a Large, Real-World Data Set

Kevin M. Pantalone; Anita D. Misra-Hebert; Todd M. Hobbs; Xinge Ji; Sheldon X. Kong; Alex Milinovich; Wayne Weng; Janine M. Bauman; Rahul Ganguly; Bartolome Burguera; Michael W. Kattan; Robert S. Zimmerman

Objective This study evaluated relationships between glycaemic control, body mass index (BMI), comorbidities and pharmacological treatment in patients with type 2 diabetes mellitus (T2D). Research design and methods This was a retrospective, cross-sectional analysis of Quintiles electronic medical records research data (study period 1 October 2013–30 September 2014). Eligibility included age ≥18 years, T2D diagnosis, and at least one available BMI measurement. Results The study included 626 386 patients (mean age, 63.8 year; 51.3% female; 78.5% white; 62.6%, BMI ≥30 kg/m2). A1c data were available for 414 266 patients. The proportion of patients with good glycaemic control (A1c ≤6.5) decreased as BMI category increased, ranging from 40.1% of patients with BMI <30% to 30.1% of patients with BMI ≥40. The proportions of patients with poor glycaemic control (A1c >8% and A1c ≥9%) increased with increasing BMI category. Oral antidiabetic drugs (OAD) were the most frequently used (54.4% of patients with A1c values). Among patients using insulin-based therapy, 50% had an A1c ≥8% and 29% had an A1c ≥9% regardless of concomitant OAD or glucagon-like peptide 1 receptor agonist use. Among patients using three or more OADs, 34.3% and 16.1% had A1c values ≥8% and ≥9%, respectively. There was no common trend observed for changes in the proportion of patients with T2D-related comorbidities according to BMI category. The most notable trend was a 7.6% net increase in the percentage of patients with hypertension from BMI <30 to BMI ≥40. Conclusions This large dataset provides evidence that roughly one out of four patients with T2D is not well controlled, and the prevalence of poor glycaemic control increases as BMI increases.


BMJ Open | 2017

Prevalence and recognition of obesity and its associated comorbidities: cross-sectional analysis of electronic health record data from a large US integrated health system

Kevin M. Pantalone; Todd M. Hobbs; Kevin Chagin; Sheldon X. Kong; Brian J. Wells; Michael W. Kattan; Jonathan Bouchard; Brian Sakurada; Alex Milinovich; Wayne Weng; Janine M. Bauman; Anita D. Misra-Hebert; Robert S. Zimmerman; Bartolome Burguera

PURPOSE Documenting diabetes treatment patterns and associated costs over time is an important step in gauging the medical and economic impact of current treatment guidelines in a real-world setting. This study was designed to assess changes in medication treatment patterns, health care costs, and comorbidities over a 6-year period after a new diagnosis of type 2 diabetes mellitus (T2DM). This analysis is the first of its kind to observe, over time, a single US cohort of patients newly diagnosed with T2DM. METHODS This study was a longitudinal assessment of changes in medical services and comorbidities for a single cohort (N = 35,017) of adults newly diagnosed with T2DM in 2006 using claims data from Truven Health Analytics MarketScan(®) databases. Prevalence of diabetes-related comorbidities and utilization/costs of inpatient/outpatient services and medications were analyzed annually for the index (diagnosis) year (Y1) through year 6 (Y6) postindex. Costs were adjusted to 2012 dollars. FINDINGS From Y1 to Y6, increased prevalence was noted for several T2DM-associated comorbidities: cerebrovascular disease (13%-21%), peripheral vascular disease (3%-10%), nephropathy (3%-13%), and retinopathy (4%-14%). All-cause costs of inpatient and outpatient services and medications were analyzed for the index year (Y1) through Y6 postindex (adjusted to 2012 dollars). Total health care utilization costs (services plus drugs) increased by 33.3% from Y1 (


Journal of Diabetes | 2018

Effect of glycemic control on the Diabetes Complications Severity Index score and development of complications in people with newly diagnosed type 2 diabetes: 在新诊断的2型糖尿病患者中血糖控制情况对糖尿病并发症严重程度指数评分以及并发症进展的影响

Kevin M. Pantalone; Anita D. Misra-Hebert; Todd M. Hobbs; Brian J. Wells; Sheldon X. Kong; Kevin Chagin; Tanujit Dey; Alex Milinovich; Wayne Weng; Janine M. Bauman; Bartolome Burguera; Robert S. Zimmerman; Michael W. Kattan

329.8 million) to Y6 (


Diabetes Research and Clinical Practice | 2018

Trends in comorbidity burden and treatment patterns in type 2 diabetes: Longitudinal data from a US cohort from 2006 to 2014

Wayne Weng; Yuanjie Liang; Edward S. Kimball; Todd M. Hobbs; Sheldon X. Kong

439.5 million). Inpatient costs across the entire cohort increased 19.3% from Y1 (

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Michael W. Kattan

Case Western Reserve University

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