Chelim Cheong

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BACKGROUND Little is known about the potential for improved adherence with and cost savings of fixed-dose combination therapy (FDCT) products compared with analogous dual therapy for type 2 diabetes mellitus. OBJECTIVES The objectives of this study were as follows: (1) to describe patient adherence to various oral antidiabetic regimens (ie, dual therapy(More)
OBJECTIVES Despite the clinical and epidemiological importance of herpes zoster (HZ) and postherpetic neuralgia (PHN), their disease and economic burden related to immune status has not been studied in South Korea. Our aim was to calculate the prevalence and rate of healthcare utilization related to HZ and PHN among Korean patients stratified by immune(More)
Glucosamine and chondroitin are widely used as pharmaceutical and dietary supplements. However, there is a lack of information regarding consumer consumption of glucosamine and chondroitin in the Republic of Korea. We investigated the prevalence and factors affecting the use of glucosamine products in the general population aged 40 years and older in the(More)
OBJECTIVES The recent arrival of new hepatitis C virus (HCV) drugs has brought fiscal pressures onto Medicare Part D; spending on HCV drugs in Part D jumped from $283 million in 2013 to $4.5 billion in 2014. We examined the current benefit designs for HCV drugs in Part D plans and analyzed patients' financial burden for those drugs. STUDY DESIGN A(More)
OBJECTIVES Specialty drugs can bring significant benefits to patients, but they can be expensive. Medicare Part D plans charge relatively high cost-sharing costs for specialty drugs. A provision in the Affordable Care Act reduced cost sharing in the Part D coverage gap phase in an attempt to mitigate the financial burden of beneficiaries with high drug(More)
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