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Featured researches published by D Cobden.


Pharmacotherapy | 2007

Health outcomes and economic impact of therapy conversion to a biphasic insulin analog pen among privately insured patients with type 2 diabetes mellitus.

D Cobden; Won Chan Lee; S Balu; Av Joshi; Chris L. Pashos

Study Objective. To evaluate claims‐related treatment adherence, health care resource utilization, and associated costs of therapy conversion from an insulin vial and syringe to a premixed biphasic insulin analog pen device among privately insured patients with type 2 diabetes mellitus.


Current Medical Research and Opinion | 2007

An evaluation of patient preference for an alternative insulin delivery system compared to standard vial and syringe.

Karen Stockl; Caron Ory; Ann Vanderplas; Lars Nicklasson; William Lyness; D Cobden; Eunice Chang

ABSTRACT Background: Diabetes mellitus (DM) affects over 18.2 million Americans and diabetes-related medical costs exceed 132 billion dollars per year, totaling more than 12% of the United States healthcare budget. The Diabetes Control and Complications Clinical Trial demonstrated that intensive insulin therapy and the control of plasma glucose can significantly reduce the incidence of late diabetic complications and delay the progression of existing conditions in type 1 diabetes. Optimal glycemic control often requires intensive insulin therapy to maintain a hemoglobin A1C (A1C) of less than 7% as recommended by the American Diabetes Association. It is estimated that more than half of the approximately 7 million Americans using insulin do so with suboptimal treatment and while administering one or two insulin injections per day. Non-adherence may be a contributing factor in suboptimal treatment. For a variety of reasons, many patients diagnosed with diabetes and treated with insulin are non-adherent. Scope: The primary objective of this study was to evaluate preference for an insulin delivery system comparing a disposable doser (InnoLet) to the standard vial/syringe. In a prospective, randomized, open-label, two-period, crossover study, 260 patients were enrolled (age ≥ 18 years, with type 1 or 2 diabetes, and receiving NPH or regular or 70/30 insulin for at least 6-months). A total of 162 patients completed both treatment arms. Excluded were those unable to read/write English or administer their own injections, pregnant/lactating women, those using antipsychotics, and those with a history of alcohol abuse or cognitive impairment. Patients completed the eight-item Diabetes Fear of Self-Injection Questionnaire at baseline, week 12 and week 24. Items were rated on a 4-point Likert scale (1 = almost never; 4 = almost always) with a maximum fear score of 32. At week 24, patients completed a preference survey. Findings: Of the 162 patients completing both treatment arms, 89 (55.0%) were in the vial/syringe to disposable doser treatment arm, 50% were female and mean age was 60 ± 11 years. Patients in both treatment arms displayed little significant differences in baseline characteristics. Patients reported significantly lower fear of self-injection after using the disposable doser compared to vial/syringe (mean ± SEM: 9.5 ± 0.2 vs. 11.2 ± 0.4; p < 0.0001). Most patients (71.5%) indicated a preference for the disposable doser compared to the vial/syringe method ( p < 0.0001). Conclusion: The majority of patients preferred the disposable doser, and reported significantly less fear of self-injection using this delivery system. There are some potential limitations to consider. A randomization bias may have been present, patients who enrolled in this study were those who were actively seeking medical treatment for diabetes, insulin pens and cartridges are not available for all types of insulin regimens, pre-filled pens and cartridges may not be altered and, in general, alternative insulin delivery systems tend to be more costly than insulin sold in traditional vials. However, insulin may have greater patient acceptance and less psychological distress when administered via an alternative delivery system.


Current Medical Research and Opinion | 2005

Needlestick injury in acute care nurses caring for patients with diabetes mellitus: a retrospective study

Jennifer M. Lee; Marc F. Botteman; Lars Nicklasson; D Cobden; Chris L. Pashos

ABSTRACT Objective: To quantify the incidence and assess the risk of needlestick injury (NI) in nurses caring for patients with diabetes mellitus. Methods: A total of 400 nurses caring for patients with diabetes in 381 different hospitals throughout the United States over a period of at least 1 year voluntarily completed an Internet-based data collection instrument. The nurses self-reported comprehensive data on their experience with NI, focusing on those occurring within the past year. If respondents experienced multiple NI during this period, detailed data were collected on the most recent event. Results: Of the 400 nurses, 313 (78.3%) reported experiencing at least one NI, 110 (27.5%) reported at least one NI within the last 12 months, and 44 (40% of 110) reported multiple NI. Nearly two-thirds of these injuries (n = 73/110; 66.4%) were punctures that drew blood, resulting in one case of contracted hepatitis C. The cumulative annual incidence of NI events was 448 NI per 1000 nurses. Nurses reported the injury in adherence with existing regulations and policies in only 21.8% of the cases. Disposable syringes were involved in 88 (80%) of the NI events. In half of the injuries (n = 55), the needled device was equipped with a safety feature that was ineffective, primarily because it was not fully activated (n = 47/55; 85.5%) or it malfunctioned (n = 2–5; 3.6–9.1%). NI most commonly occurred while nurses were injecting insulin (n = 33; 30%). In the 2 weeks following their NI, 60.1% of nurses noted that they were more afraid of needled devices than before the injury and 41.8% felt anxious, depressed, or stressed. As a direct result of the NI, nurses missed 77 days of work. Conclusions: This study is the first to show the relatively high risk both of NI and of NI that draws blood among nurses injecting insulin with a disposable syringe and confirms previous incidence estimates of NI among nurses. Additionally, this study reveals significant post-NI emotional distress, suggests significant under-reporting of NI to hospital officials, and demonstrates the need for a more effective needle safety device.


Advances in Therapy | 2006

Cost-effectiveness of basal insulin from a US health system perspective: comparative analyses of detemir, glargine, and NPH.

Wj Valentine; Andrew J. Palmer; Katrina Erny-Albrecht; Joshua A. Ray; D Cobden; V. Foos; Francisco M. Lurati; S Roze

The purpose of this study was to compare in clinical and economic terms the long-acting insulin analogue detemir with intermediate-acting Neutral Protamine Hagedorn (NPH) insulin and with long-acting insulin glargine. Investigators used the validated Center for Outcomes Research (CORE) Diabetes Model to project clinical and cost outcomes over a 35-year base case time horizon; outcome data were extracted directly from randomized, controlled trials designed to compare detemir with NPH and with insulin glargine. Modeled patient characteristics were derived from corresponding trials, and simulations incorporated published quality-of-life utilities with cost data obtained from a Medicare perspective. Detemir, when compared with NPH, increased quality-adjusted life expectancy by 0.698 quality-adjusted life-years (QALYs). Lifetime direct medical costs were increased by


International Journal of Clinical Practice | 2006

Improving life expectancy and decreasing the incidence of complications associated with type 2 diabetes: a modelling study of HbA1c targets.

Wj Valentine; Andrew J. Palmer; Lars Nicklasson; D Cobden; S Roze

10,451 per patient, although indirect costs were reduced by


Journal of Womens Health | 2008

A Retrospective Managed Care Claims Data Analysis of Medication Adherence to Vaginal Estrogen Therapy: Implications for Clinical Practice

Lee P. Shulman; David J. Portman; Won Chan Lee; Sanjeev Balu; Av Joshi; D Cobden; Qin Wang; Chris L. Pashos

4688. On the basis of direct costs, the cost per QALY gained with detemir was


Diabetes, Obesity and Metabolism | 2007

Insulin therapy in type 2 diabetes patients failing oral agents: cost-effectiveness of biphasic insulin aspart 70/30 vs. insulin glargine in the US.

Joshua A. Ray; Wj Valentine; S Roze; Lars Nicklasson; D Cobden; Philip Raskin; Alan M. Garber; Andrew J. Palmer

14,974. In comparison with glargine, detemir increased quality-adjusted life expectancy by 0.063 QALYs, reduced direct medical costs by


Advances in Therapy | 2007

Therapy conversion to insulin detemir among patients with type 2 diabetes treated with oral agents: A modeling study of cost-effectiveness in the United States

Wj Valentine; Katrina Erny-Albrecht; Joshua A. Ray; S Roze; D Cobden; Andrew J. Palmer

2072 per patient, and decreased indirect costs by


Current Medical Research and Opinion | 2005

Short-term economic impact associated with occupational needlestick injuries among acute care nurses

Won Chan Lee; Lars Nicklasson; D Cobden; Er Chen; Donald Conway; Chris L. Pashos

3103 (dominant). Reductions in diabetes-related comorbidities were also associated with detemir in both instances, most notably in the complications of retinopathy and nephropathy. Relative reductions in rates of complications were greatest in the comparison of detemir with NPH. Results were most sensitive to variation in hemoglobin A1c (HbA1c) levels. However, variation among any of the key assumptions, including HbA1c, did not alter the relative results. Detemir represents an attractive clinical and economic intervention in the US health care setting compared with both NPH insulin and insulin glargine.


Value in Health | 2007

PDB28 IMPACT OF INITIATING OR CONVERTING TO TREATMENT WITH AN INSULIN ASPART ANALOG PEN ON MEDICATION ADHERENCE IN TYPE 2 DIABETES PATIENTS ON VIAL/SYRINGE INSULIN

S Balu; Wc Lee; D Cobden; Av Joshi; Cl Pashos

To project the long‐term clinical and cost outcomes that accompany predefined improvements in glycaemic control in patients with type 2 diabetes. A peer‐reviewed, validated, non‐product‐specific Markov model of type 2 diabetes was used to project the long‐term clinical and cost outcomes associated with three HbA1c reduction scenarios (vs. no reduction): (i) decreasing mean HbA1c from 9.5% to 8.0%; (ii) from 8.0% to 7.0%; and (iii) from 7.0% to 6.5%. A typical baseline US type 2 diabetes cohort derived from National Health and Nutrition Examination Survey data was simulated over a lifetime horizon (35 years). Incidence of diabetes‐related complications and costs (2005 USD) were accounted based on published data. Discount rates (3% per annum) were applied to clinical benefits and costs. Sensitivity analyses were performed. Stepwise reductions in HbA1c as an independent variable correlated with delayed time to diabetes‐related complications and a reduced cumulative incidence of complications, including cardiovascular, renal and neurologic comorbidities. Related costs also decreased. Reductions in both poorly‐ (9.5–8.0%) and better‐controlled (7.0–6.5%) patients produced incremental gains in undiscounted life expectancy (LE) [1.06 (0.31) and 0.32 (0.34) years [mean (SD)], respectively]. Similar improvement patterns were observed in quality‐adjusted life expectancy (QALE). Benefits from sequential reduction scenarios, when aggregated, exhibited the most dramatic effect. Improved glycaemic control was associated with reductions in complication rates and costs, as well as increased LE and QALE among type 2 patients. These data illustrate the long‐term importance of reaching normoglycaemia and support intensified HbA1c control as a cornerstone of effective long‐term type 2 diabetes management.

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Cl Pashos

Takeda Pharmaceutical Company

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