Publications by authors named "Hong Jang"

Article Synopsis
  • Osteoarthritis (OA) is a common joint disease with no definitive treatment options, leading to the investigation of a new combination drug, PK101, which includes a herbal extract and celecoxib.
  • A clinical study was conducted with healthy participants using a crossover design to compare the pharmacokinetics and safety of PK101 against its individual components.
  • Results showed that PK101 had comparable absorption and concentration levels of celecoxib as the individual formulations, with some mild adverse events reported, indicating potential for further exploration in OA treatment.
View Article and Find Full Text PDF

Background And Objectives: Cilostazol improves ischemic symptoms and prevents recurrence following cerebral infarction, and rosuvastatin reduces cholesterol levels. However, no reports exist on the pharmacokinetic interactions between these two drugs in healthy adults. This study evaluated the pharmacokinetic (PK) interactions and safety of cilostazol and rosuvastatin when co-administered to healthy male participants.

View Article and Find Full Text PDF

Purpose: Hypofractionated short-course radiation therapy (SCRT) is an alternative treatment option for elderly or frail patients with newly diagnosed glioblastoma (GBM) post-surgery. This study compares survival outcomes and treatment costs between patients receiving SCRT and those undergoing standard long-course radiation therapy (LCRT).

Methods: This retrospective study utilized health insurance claims and national cancer registry data from Korea to compare overall survival (OS) and treatment costs between patients receiving SCRT and LCRT across all ages and sub-group analysis within the subgroup of cases aged 65 and older from 2016 onwards, a period when intensity-modulated radiotherapy (IMRT) was widely adopted.

View Article and Find Full Text PDF

Purpose: To evaluate recurrence patterns of and survival outcomes in glioblastoma treated with intensity-modulated radiation therapy (IMRT) versus three-dimensional conformal radiation therapy (3D-CRT).

Materials And Methods: We retrospectively examined 91 patients with glioblastoma treated with either IMRT (n = 60) or 3D-CRT (n = 31) between January 2013 and December 2019. Magnetic resonance imaging showing tumor recurrence and planning computed tomography scans were fused for analyzing recurrence patterns categorized as in-field, marginal, and out-of-field based on their relation to the initial radiation field.

View Article and Find Full Text PDF
Article Synopsis
  • CT-P13 is a biosimilar used to treat inflammatory diseases by providing an alternative to the traditional intravenous administration with a subcutaneous formulation delivered via autoinjector.
  • A clinical study with 147 participants compared the pharmacokinetics and safety of CT-P13 administered using an autoinjector versus a pre-filled syringe, finding they had comparable serum concentration profiles.
  • Both administration methods showed similar levels of immunogenicity, with no significant safety differences, confirming that both are effective and well-tolerated options for patients.
View Article and Find Full Text PDF
Article Synopsis
  • A new fixed-dose combination of ezetimibe, atorvastatin, and amlodipine has been created to help patients with cardiovascular diseases stick to their medication.
  • In a study with 34 participants, it was found that taking this combination with amlodipine didn't significantly change how the drugs behave in the body, although amlodipine did slightly increase atorvastatin levels by about 23%.
  • Another study with 60 participants confirmed that the combination formulation works similarly to taking each drug separately, showing that it is bioequivalent and just as well tolerated.
View Article and Find Full Text PDF

Purpose: Prostate-specific antigen (PSA) bounce is a common phenomenon that can be observed in patients of prostate cancer treated by radiotherapy. However, the clinical, pathological, or dosimetric predictors and clinical significance of PSA bounce in stereotactic body radiotherapy (SBRT) patients is still unknown.

Methods: Between August 2006 to December 2015, 74 prostate cancer patients were treated by SBRT with Cyberknife at two medical centers.

View Article and Find Full Text PDF

Introduction: Fixed-dose combinations (FDCs) of angiotensin II receptor blockers, calcium channel blockers, and statins are conventional therapeutic interventions prescribed for cardiovascular diseases. This study aimed at drawing a comparison between the pharmacokinetics and safety of an FDC and the corresponding individual formulations in healthy subjects.

Methods: A randomized, open-label, single-dose, three-sequence, three-period, partially repeated crossover study was conducted with a cohort of healthy volunteers.

View Article and Find Full Text PDF

The combined cilostazol and rosuvastatin therapy is frequently used for coronary artery disease treatment. This open-label, 3 × 3 crossover clinical trial evaluated the pharmacokinetics and safety of a fixed-dose combination (FDC) of cilostazol/rosuvastatin (200 + 20 mg) versus a concurrent administration of the separate components (SCs) under both fasted and fed conditions. Among 48 enrolled healthy adults, 38 completed the study.

View Article and Find Full Text PDF

Administration of sedatives for post-resuscitation care can complicate the determination of the optimal timing to avoid inappropriate, pessimistic prognostications. This prospective study aimed to investigate the distribution and elimination kinetics of midazolam (MDZ) and its metabolites, and their association with awakening time. The concentrations of MDZ and its seven metabolites were measured immediately and at 4, 8, 12, and 24 h after the discontinuation of MDZ infusion, using liquid chromatography-tandem mass spectrometry.

View Article and Find Full Text PDF

Background: This study's objective was to demonstrate pharmacokinetic (PK) similarity and safety of denosumab biosimilar, CT‑P41, and United States-licensed reference denosumab (US-denosumab) in healthy male Asian adults, considering also pharmacodynamic (PD) outcomes.

Research Design And Methods: This double-blind, two-arm, parallel-group, Phase 1 study randomized (1:1) healthy males to a single (60-mg) subcutaneous dose of CT‑P41 or US-denosumab. Primary endpoints were area under the concentration - time curve (AUC) from time zero to infinity (AUC), AUC from time zero to the last quantifiable concentration (AUC), and maximum serum concentration (C).

View Article and Find Full Text PDF

Aberrant regulation of the long non-coding RNA SRY-box transcription factor 2 overlapping transcript (SOX2OT) has been reported in various diseases including gastric cancer (GC). However, an association between the well-studied rs9839776 single nucleotide polymorphism in SOX2OT and GC susceptibility has not been reported. This study aimed to evaluate the association between the rs9839776 single nucleotide polymorphism in SOX2OT and GC risk.

View Article and Find Full Text PDF

Camostat mesylate is expected to be promising as a treatment option for COVID-19, in addition to other indications for which it is currently used. Furthermore, in vitro experiments have confirmed the potential of camostat and its metabolites to be effective against COVID-19. Therefore, clinical trials were conducted to evaluate the safety and pharmacokinetic characteristics of camostat after single-dose administration.

View Article and Find Full Text PDF

The (leptin receptor) genotype is associated with obesity. Gut microbiome composition differs between obese and non-obese adults. However, the impact of genotype on gut microbiome composition in humans has not yet been studied.

View Article and Find Full Text PDF

Background: The incidence of tract seeding after the placement of indwelling pleural catheter (IPC) for malignant pleural effusion drainage has been variable in the literature.

Research Question: To evaluate the incidence of IPC-related cancer tract seeding and find out related demographic, clinical or imaging factors to the tract seeding.

Study Design And Methods: This retrospective study included 124 consecutive patients seen between January 2011 and December 2021 who underwent IPC placement for malignant pleural effusion drainage.

View Article and Find Full Text PDF
Article Synopsis
  • The study compared the pharmacokinetic (PK) and safety profiles of two fenofibric acid formulations, a 135 mg capsule and a 110 mg enteric-coated tablet, under fasting and fed conditions.
  • Conducted as a crossover phase 1 clinical trial with 120 healthy Korean men, blood samples were analyzed to assess how each formulation performed over 72 hours.
  • Results showed that the enteric-coated tablet had better bioavailability and was easier to swallow, taking longer to reach peak concentration than the capsule in both fasting and fed states.
View Article and Find Full Text PDF

Although research into ultrahigh dose-rate (UHDR) radiation therapy is ongoing, there is a significant lack of experimental measurements for two-dimensional (2D) dose-rate distributions. Additionally, conventional pixel-type detectors result in significant beam loss. In this study, we developed a pixel array-type detector with adjustable gaps and a data acquisition system to evaluate its effectiveness in measuring UHDR proton beams in real time.

View Article and Find Full Text PDF

Purpose: Studies about the effect of radiation therapy (RT) on immune cells are usually limited to a high-grade glioma mostly exposed to chemotherapy and a high dose of steroid which also could affect immune cells. The purpose of this retrospective analysis of low-grade brain tumor patients treated by RT alone is to determine significant factors influencing neutrophil-to-lymphocyte ratio (NLR), absolute neutrophil counts (ANC), and absolute lymphocyte counts (ALC).

Materials And Methods: A total of 41 patients who received RT between 2007 and 2020 were analyzed.

View Article and Find Full Text PDF

Purpose: The optimal short-course chemotherapeutic regimen for rectal cancer has not been clearly defined until now. KROG 10-01 and KROG 11-02 prospective trials investigated the efficacy and safety of 1- and 2-week chemoradiotherapy (CRT), respectively.

Materials And Methods: Patients eligible for KROG 10-01 and KROG 11-02 involved those with clinical T3-4N0-2M0 rectal cancers.

View Article and Find Full Text PDF

The activation of receptor-interacting protein kinase 1 (RIPK1) by death-inducing signaling complex (DISC) formation is essential for triggering the necroptotic mode of cell death under apoptosis-deficient conditions. Thus, targeting the induction of necroptosis by modulating RIPK1 activity could be an effective strategy to bypass apoptosis resistance in certain types of cancer. In this study, we screened a series of arborinane triterpenoids purified from Rubia philippinesis and identified rubiarbonol B (Ru-B) as a potent caspase-8 activator that induces DISC-mediated apoptosis in multiple types of cancer cells.

View Article and Find Full Text PDF

We assessed the exact role of adjuvant chemotherapy after neoadjuvant chemoradiotherapy (CRT) and surgery in rectal cancer patients with positive surgical margin or perineural invasion (PNI). This multi-institutional study included 1799 patients with rectal cancer at cT3-4N0-2M0 stages. Patients were divided into two groups.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to explore how atorvastatin (a statin) and omega-3 fatty acids interact at a pharmacokinetic level through a phase 1 trial.
  • Researchers conducted the trial with 37 subjects who were administered different combinations of atorvastatin and omega-3 over specified periods to measure drug concentrations.
  • Results showed significant pharmacokinetic interactions between atorvastatin and omega-3 fatty acids, as highlighted by the geometric mean ratios and 90% confidence intervals indicating deviations from typical bioequivalence standards.
View Article and Find Full Text PDF

Unlabelled: An extended-release (ER) fixed-dose combination (FDC) of tramadol 37.5 mg/acetaminophen 325 mg was developed due to the demand for varying dosages. This study aimed to evaluate the pharmacokinetics (PKs) for two tablets of the new developed tramadol 37.

View Article and Find Full Text PDF

Background: Many questions have been raised in the ongoing battle against COVID-19: How does the public perceive the COVID-19 prevention campaign as a member of the community?; What made the perception of the experts and the public on COVID-19 change from 'simple' to 'serious' epidemic?; What is the risk perception on health?; and what are the effective messages of the government's campaign about disease prevention? As such, this study aimed to examine the perception of the public about the government's campaign against COVID-19. Moreover, this study investigated the more effective messaging strategies for the campaign through subjective values, thoughts, and attitudes about the information dissemination, which became the basis for the degree of people's participation in the disease prevention campaign.  METHOD : In order to investigate the public perception on the campaign messages that are promoted by the government for prevention of COVID-19, this study implemented the Q methodology that studies subjective attributes of humans, unlike existing empirical studies.

View Article and Find Full Text PDF

Purpose: The standard of care for early rectal cancer is radical surgery; however, it carries high postoperative morbidity. This study aimed to assess the short-term and oncological outcomes of local excision and adjuvant radiotherapy in patients with high-risk pathological stage (p) T1 rectal cancer.

Methods: Fifty-five patients underwent local excision with adjuvant radiotherapy or radical resection for high-risk T1 rectal cancer.

View Article and Find Full Text PDF