Clinical trials

This study is a prospective, multicenter study in the real practice to validate the diagnostic performances and clinical impact of coronary angiography \& intravascular ultrasound (IVUS)-based models developed by machine learning (ML).

The purpose of this observational study is to learn if a specialized blood test can help predict whether advanced ovarian cancer will return after a patient's initial treatments are finished. Researchers are inviting women who have been diagnosed with stage III or IV epithelial ovarian cancer and have recently completed their first-line treatments, which include surgery and platinum-based chemotherapy. The study focuses on "circulating tumor DNA" (ctDNA), which are tiny fragments of genetic material that cancer cells release into the bloodstream as they break down. Finding these DNA fragments in the blood when a patient appears to be cancer-free on standard tests is known as assessing for minimal residual disease (MRD). Because this is an observational study, participants will receive standard medical care as directed by their doctor. For the research portion, participants will provide blood samples at specific times: at the time of diagnosis, shortly after surgery, right after finishing their first-line chemotherapy, and then every 3 months during regular follow-up visits. Researchers will also analyze a sample of the tumor tissue that was already removed during the patient's standard surgery. By tracking these participants for up to 3 years, researchers hope to discover if the ctDNA test can accurately identify patients who have a high risk of their cancer returning, and if it can detect this earlier than traditional imaging scans or standard blood tests like CA-125.

Objectives: To assess the safety of tailored antiplatelet therapy (short DAPT followed by P2Y12 inhibitor alone strategy) in patients who received optimized DES implantation guided by intravascular imaging (IVUS or OCT) Hypothesis: Tailored antiplatelet strategy (short DAPT followed by P2Y12 inhibitor alone) is superior to conventional antiplatelet strategy in terms of clinically relevant bleeding and noninferior for ischemic composite adverse events in patients who received intravascular imaging-guided optimized DES implantation. (Optimized stent evaluated by on-site IVUS/OCT could act as an essential criterion for decision making for tailored antithrombotic strategy)

This study was a multicenter, randomized, phase 3 trial to determine whether adjuvant chemotherapy including tisleliizumab improves recurrence-free survival compared to follow-up alone without chemotherapy in patients with curatively resected esophageal squamous cell carcinoma.

The goal of this clinical trial is to learn if lenvatinib or regorafenib can help treat people with advanced liver cancer (hepatocellular carcinoma, HCC) that cannot be removed with surgery after first treatment with immunotherapy-based drug combinations. It will also look at the safety of these treatments. The main questions this study aims to answer are: * How long lenvatinib can delay cancer growth in people with good liver function (Child-Pugh)A after dual immunotherapy * How long people with reduced liver function (Child-Pugh B7-B8) live after treatment with lenvatinib or regorafenib after first-line immunotherapy-based combination treatment * What side effects people experience during treatment * How many people have their tumors shrink or disappear The study has two parts: In REVIVE-1, participants with Child-Pugh A liver function will receive lenvatinib. In REVIVE-2, participants with Child-Pugh B7 to B8 liver function will receive either lenvatinib or regorafenib. Participants will: * take lenvatinib or regorafenib by mouth * visit the clinic regularly for physical exams, blood and urine tests, and safety checks * have computed tomography (CT) scans every 8 weeks to check their cancer * be followed during and after treatment to assess outcomes and side effects

This is an open label, single-center, non-randomized clinical trial on utilization of microbiome as biomarkers and therapeutics in immuno-oncology. This research consists of two parts: part 1: development of microbiome biomarkers for immuno-oncology part 2: proof-of-concept trial on the fecal microbiota transplantation in patients who are being treated with immunotherapy for advanced solid tumor

This prospective observational study aims to evaluate the association between intraoperative blood viscosity and postoperative clinical outcomes in adult patients undergoing elective intracranial craniotomy. Blood viscosity is an important determinant of microcirculatory flow and cerebral perfusion, but its role in perioperative outcomes remains unclear. In this study, intraoperative blood viscosity and related hematologic parameters will be measured, and their relationships with cerebral oxygenation and postoperative complications will be analyzed. The study will enroll adult patients undergoing elective intracranial surgery at a single tertiary center. The findings of this study may improve understanding of perioperative hemodynamic and hemorheological factors and help identify potential risk markers for adverse postoperative outcomes.

The aim of this study is to evaluate the safety and efficacy of lenvatinib in patients with metastatic or advanced GIST who have failed at least imatinib, sunitinib, and regorafenib treatment.

The purpose of this study is to evaluate safety and efficacy of Liporaxel for patients with GIST who failed on prior standard treatments, including imatinib, sunitinib, and regorafenib, and with low P-glycoprotein expression.

The purpose of this study is to evaluate the efficacy and safety of rivoceranib and paclitaxel combination therapy in patients with P-glycoprotein overexpressing GIST who failed standard treatment with imatinib, sunitinib, and regorafenib.

The goal of this clinical trial is to investigate the efficacy and safety of temozolomide in SDH deficiency GIST patients.

The main objective of this study is to evaluate the efficacy and safety of IV FCM(ferric carboxymaltose) in patients with AGC receiving palliative chemotherapy. This study will also evaluate the effect of IV FCM on the treatment outcomes of palliative chemotherapy in patients with gastric cancer receiving fluoropyrimidine and platinum-based regimen in the same 1st-line palliative setting.

Gastric cancer is the fifth most common carcinoma in the world, and cancer-related deaths rank third. It is one of the main causes of death from cancer in Korea. The cure method for gastric cancer is radical resection, but in most patients, radical resection is impossible due to local infiltration or peripheral organ or distant metastasis. Many assisted chemotherapy has been studied to improve survival rate, and in East Asia, assisted chemotherapy after complete D2 resection is the standard treatment. In the West, on the other hand, preoperative chemotherapy and postoperative assisted chemotherapy are currently standard treatments. However, due to the limited effect of adjuvant chemotherapy, it has been reported that better clinical course can be improved by increasing anticancer intensity. In this context, a large number of prior chemotherapy have been attempted, and prior chemotherapy has several potential effects as follows. (1) Improvement of R0 resection rate due to reduced primary cancer size, (2) early treatment for micro metastasis, (3) evaluation of treatment response rate in patients with measurable lesions, and (4) unnecessary laparotomy can be avoided in patients with biologically aggressive diseases. Based on the efficacy of chemotherapy in the combination of docetaxel, fluoropyrimidine, and platinum in metastatic gastric cancer, the investigators conducted a preceding auxiliary anti-cancer clinical trial of docetaxel, capecitabine and cisplatin in advanced gastric cancer patients who could not be completely resected by surgery. DXP was performed 4-6 cycles before surgery with the recommended dose in phase 1-2. In a total of 49 patients, R0 resection was performed in 31 (63%), and among patients, R0 resection was improved in cases where resection was not possible due to local infiltration (71%) and in cases where para-aortic node metastasis was performed (73%). We have reported that docetaxel, oxaliplatin, and S-1 chemotherapy (DOS) as preoperative adjuvant therapy can be safely administered in combination with D2 gastrectomy and postoperative adjuvant therapy S-1 in potentially resectable local progressive gastric cancer patients. R0 resection was achieved in 97.6% of patients, and pathological complete remission was observed in 19.5%. Based on this, a phase 3 PRODIGY study was performed to evaluate the benefit of S-1 (CSC group) as a preoperative prior chemotherapy compared to S-1 (SC group) as a postoperative adjuvant therapy in gastric cancer of cT2/3N+ or cT4Nany stage, and 0.75% of the CSC group was administered HR. In the patient group undergoing surgery, the R0 resection rate was 95% in the CSC group and 84% in the SC group. In the CSC group, the pathological complete remission rate was 10.4%. Based on these results, a clinical trial of DOS as a preoperative chemotherapy was planned for progressive gastric cancer that could not be resected due to local progression or metastasis limited to remote lymph nodes. Primary goal: Evaluation of R0 resection rate in patients who underwent prior chemotherapy as a clinical trial. Secondary objective: safety evaluation, overall survival period, progression-free survival period, pathological complete remission rate, and investigation of biological markers.

The purpose of this study is to evaluate the natural history of coronary atherosclerosis development and progression over time by CCTA and to identify risk factors attributable to the development of coronary atherosclerosis in a Korean DM population.

Currently, aspirin plus clopidogrel is considered as a standard acute treatment of ischemic stroke, based on results of CHANCE and POINT trial. However, still a considerable portion of patients showed early stroke recurrence, especially in those with stroke due to large artery atherosclerosis. Cilostazol may have benefit in reducing early stroke recurrence of neurologic deterioriation. The post-hoc analysis of CSPS.com showed that use of cilostazol after 15 days of stroke was effective for preventing subsequent stroke. The effect of adding cilostazol was more effective in those with large artery atherosclerosis and those receiving clopidogrel than aspirin.

This randomized controlled trial evaluates and compares the immunogenicity of three different influenza vaccine formulations: high-dose trivalent (HD-IIV3), MF59-adjuvanted quadrivalent (aIIV4), and standard-dose trivalent (SD-IIV3) vaccines. The study population consists of patients with hematologic malignancies, including those undergoing autologous stem cell transplantation or CAR-T cell therapy. The primary goal is to identify which vaccine strategy elicits the most robust antibody and T cell-mediated immune responses in this severely immunocompromised population

This study aims to evaluate the feasibility, usability, and clinical effectiveness of a digital rehabilitation platform in adult patients discharged from the intensive care unit (ICU). Adult patients aged 19 years or older who stayed in the ICU for more than 48 hours and are capable of using a smartphone will be enrolled from two tertiary hospitals in South Korea. Participants will receive individualized rehabilitation programs using a digital rehabilitation platform ("Tuntun Rehabilitation Assistant") based on their functional status. Rehabilitation will be conducted once daily for up to 30 minutes per session. Physical and cognitive function outcomes will be assessed at baseline, two weeks after intervention initiation, at hospital discharge, and during follow-up when applicable. This prospective cohort study will investigate changes in physical function, mobility, cognitive status, and quality of life, as well as platform usage and safety-related events, to determine the clinical usefulness of digital rehabilitation for ICU survivors.

This is a phase 2, open-label study to evaluate the safety, tolerability and efficacy of Irpagratinib in combination with Atezolizumab and Bevacizumab in patients with advanced or unresectable HCC harboring FGF19 overexpression. This study composes two parts, a Safety Run-in part to evaluate safety and establish the dose of Irpagratinib for the triple combination, and an Expansion part to evaluate the preliminary efficacy and safety using Simon's two-stage design.

Hepatocellular carcinoma (HCC) often has a poor prognosis after curative treatment due to frequent recurrence. Post-surgery, 60-70% of HCC patients experience recurrence, rising to 80% after ablation therapy. This is partly because underlying cirrhosis or chronic liver disease remains, increasing the risk of secondary HCC. The risk of recurrence varies over time, with a high risk in the first two years due to micro-metastasis. Later recurrences are usually new primary cancers (de novo HCC). Therefore, regular imaging tests, such as computed tomography (CT) or magnetic resonance imaging (MRI) every three months in the first two years, are necessary for early detection, but guidelines for post-two-year screenings are unclear. Currently, for patients recurrence-free for two years, contrast-enhanced liver CT or MRI is performed every 3-6 months as a secondary screening test. However, repeated use of CT raises concerns about radiation exposure and iodine-based contrast agents can lead to side effects and kidney issues. MRI with hepatocyte-specific agents like gadoxetic acid (Primovist) is effective but costly and time-consuming, with potential side effects from repeated gadolinium exposure. Therefore, there is a need for a validated secondary screening method that is both effective and reduces patient risk. Abbreviated contrast-enhanced MRI, using only essential sequences, has shown promise in retrospective studies for detecting HCC. However, these studies have limitations, such as potential bias and lack of data on repeated screenings. There is limited research on secondary screening post-curative treatment for HCC. This study aims to prospectively evaluate the use of abbreviated contrast-enhanced MRI with Primovist as a secondary screening method for detecting secondary HCC in patients who have been recurrence-free for more than two years.

This trial is a multinational, multicenter, randomized, open-label, active-controlled clinical trial comparing the safety of aspirin versus vitamin K antagonists (warfarin) as oral antithrombotic therapy during the initial 6 months following tissue valve replacement (aortic or mitral).

The purpose of this study is to evaluate the efficacy and safety of a wearable device in detecting previously undiagnosed atrial fibrillation through non-invasive long-term monitoring using a wearable single-lead ECG patch (MEMO Patch M, MEMO Patch2) in 100 patients with Embolic Stroke of Undetermined Source (ESUS) who require atrial fibrillation screening. Participants who meet all inclusion and exclusion criteria and provide written informed consent will wear the MEMO Patch M and undergo in-hospital telemetry monitoring using MEMO Cue for a minimum of 12 hours and up to 8 days. During hospitalization, 24-hour Holter monitoring will also be conducted. Before discharge, the investigator will review these results to determine whether implantable loop recorder (ILR) implantation is necessary. At the time of discharge, participants will wear MEMO Patch2 for up to 14 days for the first ECG monitoring period. One month after discharge, the investigator will review the results of the first monitoring and initiate the second ECG monitoring with MEMO Patch2. Three months after discharge, the results of the second ECG monitoring will be reviewed, and participation in the clinical trial will be completed.

This study aims to evaluate the clinical performance of blood-based Minimal Residual Disease (MRD) testing using circulating tumor DNA (ctDNA) in patients with endometrial and cervical cancer. The researchers will investigate whether MRD detection can identify cancer recurrence earlier than current standard imaging or clinical methods (providing a "lead time"). Participants will undergo blood collection at specific time points, including at diagnosis, after surgery, and during regular follow-up visits. The study will also assess the correlation between MRD status and survival outcomes, such as Relapse-Free Survival (RFS) and Overall Survival (OS). The goal is to establish a foundation for personalized treatment strategies based on molecular monitoring.

This study aims to evaluate the detection rate of distant metastases using \[18F\]FES PET/CT in patients with low-grade, ER-positive stage III breast cancer.

The goal of this clinical trial is to compare two pacemaker strategies: Left Bundle Branch Area Pacing (LBBAP) and Minimized Ventricular Pacing (MVP) in patients requiring a permanent pacemaker for sick sinus syndrome and prolonged AV interval. It will also evaluate the safety and feasibility of the LBBAP method in these patients. The main questions it aims to answer is: \*Is LBBAP with physiological AV interval better than Minimized Ventricular Pacing? Researchers will compare the LBBAP group (aiming for conduction system capture with physiological AV intervals) to the MVP group (aiming to minimize ventricular pacing with prolonged AV intervals) to evaluate the optimal pacing strategy. Participants will: * Be randomly assigned to either the LBBAP group or the MVP group. * Undergo a pacemaker implantation procedure according to the specific criteria for their assigned group. * Visit the clinic for regular checkups to measure pacing function and ensure the device settings remain compliant with the study protocol.

This is a multicenter, prospective, randomized, open-label Phase III clinical trial (RESCUE study) evaluating the efficacy of secondary cytoreductive surgery (SCS) in patients with platinum-sensitive recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer who have shown a favorable response to 3-4 cycles of platinum-based neoadjuvant chemotherapy and are assessed as highly likely to achieve complete tumor resection based on selection models. Eligible patients will be randomly assigned to either the experimental arm, receiving SCS followed by chemotherapy (with or without maintenance), or the active comparator arm, receiving chemotherapy only (with or without maintenance), with the primary objective being to compare the Progression-Free Survival (PFS) between the two groups to determine the additional clinical benefit of SCS in this carefully selected patient population.