There are about 36818 clinical studies being (or have been) conducted in China. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
Hormone receptor positive, HER2-low expression metastatic breast cancer is the main type of breast cancer, accounting for about 50% - 60%. However, this type of patients lack ideal therapeutic drugs after the failure of first-line standard endocrine therapy, and the median overall survival time is only 30 months. Therefore, finding more efficient and safe therapeutic drugs for these patients has become a big clinical challenge at present. Disitamab Vedotin (DV), as a new class I Antibody-Drug Conjugates drug, can achieve high efficiency and precise tumor killing effect with low toxicity. According to previous study with same sample size, DV also showed good efficacy in metastatic breast cancer with Hormone receptor positive and HER2- low expression as a posterior line treatment.Therefore, we intend to explore the efficacy and safety of DV in the treatment of HER2-low expressioin /Hormone receptor positive metastatic breast cancer patients with endocrine resistance through a scientifically designed, randomized, phase III clinical study.
The purpose of this study is to assess the efficacy and safety of tiragolumab, an anti-TIGIT monoclonal antibody, when administered in combination with atezolizumab and bevacizumab as first-line treatment, in participants with unresectable, locally advanced or metastatic hepatocellular carcinoma (HCC).
Colorectal cancer (CRC) is one of the most common gastrointestinal tumors. According to the latest cancer report, the incidence and mortality rates of CRC are both ranked top 5 among malignant tumors worldwide and continue to rise. Patients who receive treatment in the early stage (stage I) have a 5-year survival rate of approximately 90%. However, for high-risk stage II and III colorectal cancer patients, the 5-year survival rate is only 40%-70%, and almost half of the patients experience postoperative recurrence and metastasis. Circulating tumor DNA (ctDNA) is a small fraction of total cell-free DNA (cfDNA) in peripheral blood circulation, carrying tumor-specific genetic and epigenetic information. It can usually be detected in the serum or plasma of tumor patients in peripheral blood. Studies have shown that methylation detection of plasma ctDNA can be used for predicting the efficacy and prognosis of tumor postoperatively, as well as for dynamic monitoring. Current methods for monitoring CRC recurrence include testing for carcinoembryonic antigen (CEA) in blood and periodic computed tomography (CT) scans. However, due to the low sensitivity of CEA and the radiation and cost limitations of CT examination, the disease status of postoperative CRC patients cannot be well-monitored. ctDNA is a promising biomarker for monitoring the recurrence and metastasis of CRC. Research results have shown that ctDNA can be detected in nearly all subjects before surgery, and the changes in ctDNA levels are related to the extent of surgical resection. The detection of ctDNA after surgery generally indicates recurrence within one year. ctDNA may be a more reliable and sensitive indicator than the current standard biomarker CEA, providing a window for early intervention. This multicenter, prospective, and randomized controlled cohort study uses a single-tube methylation-specific quantitative PCR (mqMSP) detection, which detects 10 different methylation markers and can quantitatively analyze plasma samples containing tumor DNA as low as 0.05%. This study will use the ctDNA methylation detection technology to conduct quantitative detection of ctDNA methylation in the plasma of enrolled patients, hoping to predict the recurrence and metastasis risk of patients at an earlier stage through ctDNA changes, and to explore the value of ctDNA detection in guiding postoperative follow-up for non-metastatic CRC.
Patients who develop macular diseases have several clinical complications,such as central vision loss, the central scotoma of the visual field, the decrease of reading speed and fixation stability. At present, there is still no satisfactory effect in the prevention and treatment of advanced macular disease. A new rehabitation strategy named microperimetric biofeedback training has been shown to be effective in improving patients' visual appearance, but there is no consensus regarding the optimal methodology and standard of practice. Therefore, we designed a prospective clinical study to verify the effectiveness of MBFT and to determine an optimal plan.
This trial is a Phase Ib/II study. All patients are stage IIIB/C (unsuitable for radical therapy) or IV non-small cell lung cancer(NSCLC), Eastern Cooperative Oncology Group (ECOG) performance status 0-1. The purpose of this study is to evaluate the safety and efficacy of AK112 and AK104 with or without chemotherapy in subjects with advanced NSCLC.
The study is to evaluate the safety and efficacy of COVID-19 convalescent plasma (CCP) transfusion to prevent COVID-19 in adult recipients following hematopoietic stem cell transplantation. 72 patients will be randomized in a 1:1 ratio to receive either CCR (36 patients) or not (36 patients). Patients in the CCP group will receive 200 ml of CCP at +14 days, +28 days, +2 months, and +3 months following hematopoietic stem cell transplantation. Patients in the control group would be routinely given oral ursodeoxycholic acid for +14 days after transplantation. The primary goal of the study is to evaluate the safety of CCP and the incidence of COVID-19 infection within +28 days after the last infusion of CCP.
Gemcitabine-based chemotherapy or combination with FOLFIRINOX is the leading treatment of pancreatic cancer. However, the overall response rate of pancreatic cancer to gemcitabine is less than 20%. Resistance to gemcitabine is the most important reason. There is an urgent need to develop new combination therapies to improve the efficiency of chemotherapy, avoid toxicity limitations, and improve the overall prognosis of pancreatic cancer. At present, it has been found that canagliflozin can reduce the expression level of PD-L1 in pancreatic cancer and restore the vitality of CD8+ T cells. Canagliflozin combined with gemcitabine may improve the efficiency of chemotherapy.
The goal of this clinical trial is to evaluate the safety, tolerability and pharmacokinetics of RAG-17 in adult amyotrophic lateral sclerosis (ALS) patients with SOD1 mutation. Patients will receive drug treamtent via dose escalation which ranging from minimum of 60 mg to the maximum tolerated dose (MTD), after reaching the tolerated dose, a fixed dose of the drug is given once every two months for continuous treatment, and the total treatment cycle is 8 months. The duration of this study is two years.
Stroke is one of the most important diseases endangering the health and quality of life of Chinese people. Acute ischemic stroke (AIS) is commonly caused by cerebrovascular stenosis or occlusion. The most effective treatment for AIS is timely and successful angiographic reperfusion. Due to the large diameter and obvious positioning of bilateral femoral arteries, the transfemoral artery (TFA) using Seldinger's technique has been the most commonly used approach for endovascular treatment. However, recent studies have suggested that the radial artery is an ideal puncture site for cerebrovascular intervention. Small sample studies have confirmed that endovascular recanalization for acute anterior circulation large vessel occlusion via TRA has been safe and effective. Still, there are some complex approaches needed to be converted to TFA. There has been no difference in total operation duration and fluoroscopy time between TRA and TFA, but the TRA group had higher radiation dose and shorter hospital stays than the TFA group. In addition, TRA tends to be more convenient than TFA, especially for posterior circulation lesions. However, the current studies are based on a single center with a small sample size, and there has been still a lack of large-sample randomized controlled experiments to verify the safety and effectiveness of posterior endovascular recanalization via TRA.
Purpose China has a population of 1.4 billion and an enormous medical expenditure burden, and Chinese traditional culture has a long history. It takes time to recognize and accept the concept of brain death (BD) as death. Promoting brain death determination (BDD) and rationally allocating medical resources have become major national policy issues. To identify the safest and most reliable ancillary tests needed if the clinical examination is incomplete. Method The technical group of the Brain Injury Evaluation Quality Control Center of the National Health Commission retrieved coma cases registered from 2013 to 2019. According to clinical criteria for Brain Death Determination (BDD), the patients were divided into two groups: a brain-death (BD) group and a non-BD group. The BD group was divided into a complete brain death with no doubt group (BD1 group) and an incomplete brain death with doubt group (BD2 group). Depending on the site of the brain injury, the accuracy of BDD was evaluated using the independent ancillary test or combined ancillary tests. Data from the BQCC/NHC database and yearbook were obtained, and data analysis and status comparison were conducted on six practical activities: organizational system construction, standard and specification formulation, case quality control, professional skills training, scientific research publicity and education, and international communication.