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.
KEYNOTE-177 is currently the only randomized controlled phase III clinical trial evaluating the efficacy and safety of pembrolizumab versus standard chemotherapy combined with targeted first-line therapy for dMMR/MSI-H metastatic colorectal cancer. The study was conducted at 192 centers in 23 countries and enrolled a total of 307 subjects. The results of the study showed that the median PFS of pembrolizumab was 16.5 months, which was double the 8.2 months in the chemotherapy group (HR 0.60; 95% CI: 0.45-0.80; P = 0.0002). In addition, the ORR was 45.1% in the pembrolizumab group and 33.1% in the chemotherapy group, and a higher percentage of patients achieving a complete remission (CR) with pembrolizumab than in the chemotherapy group (13.1% vs. 3.9%). The U.S. FDA approved pembrolizumab in June 2020 for the first-line treatment of MSI-H/dMMR metastatic colorectal cancer. The results of the KEYNOTE-177 study showed that 29% of patients with dMMR/MSI-H metastatic colorectal cancer experienced direct disease progression (PD) after first-line pembrolizumab monotherapy. This may suggest that some dMMR/MSI-H patients have primary resistance to anti-PD-1 monotherapy. In the first-line treatment cohort of the CheckMate 142 study using nivolumab combined with ipilimumab, the proportion of patients with direct PD was 13%, suggesting that the combination of PD-1 inhibitors and anti-CTLA-4 mAb may have help overcome this primary resistance. In addition, in the second-line and above cohort of the CheckMate142 study, 12% of patients receiving nivolumab in combination with ipilimumab experienced PD directly, compared with 26% of patients receiving nivolumab alone. A study published on 《The Lancet Oncolog》 on the efficacy and safety of ipilimumab monotherapy and ipilimumab combined with anti-PD-1 monoclonal antibody in patients with anti-PD-1 monoclonal antibody-resistant melanoma Retrospective study. The study included 355 patients with unresectable metastatic stage III or IV melanoma who received ipilimumab monotherapy after failure of anti-PD-(L)1 monoclonal antibody (n=162), or Ipilimumab combined with anti-PD-1 therapy (n=193). The ORR was 31% in the combination arm, significantly higher than the 13% in the ipilimumab monotherapy arm. In addition, the median OS and PFS of the combination therapy group were 20.4 months and 3.0 months, respectively, which were also significantly higher than those of the single-agent group of 8.8 months and 2.6 months. The aim of this study was to evaluate the objective response rate (ORR) of Cadonilimab, a bispecific anti-PD-1/CTLA-4 antibody, for PD-1/PD-L1 blockade-refractory, microsatellite instability-high (MSI-H) or mismatch repair-deficient (dMMR), advanced colorectal cancer.
To evaluate the efficacy, safety and pharmacokinetic characteristics of HR070803 in the treatment of advanced esophageal cancer.
Elderly patients have a higher risk of post-induction hypotension (PIH). The decreased cardiovascular autonomic function at baseline in elderly patients may contribute to the development of PIH. The objective of our study is to effect of preoperative cardiovascular autonomic modulation in PIH, we will recruit elderly patients who are going to have general anesthesia surgery and measure preoperative baroreflex sensitivity (BRS) and heart rate variability (HRV). The primary outcome will be PIH. Secondary outcomes included: early intraoperative hypotension, postoperative complications, and 30-day postoperative mortality.
The purpose of this study is to evaluate the performance of a PET/CT-based deep learning signature for predicting occult nodal metastasis of clinical stage N0 non-small cell lung cancer in a multicenter prospective cohort.
Objective: To observe the practical application of the standardized green channel treatment system for stroke in Xi 'an in the real world. Methods: Clinical data and information of patients with acute ischemic stroke who received standardized green channel treatment for stroke were collected, and a multicenter observational clinical study was carried out in the real world to evaluate the prognosis, mortality, incidence of asymptomatic and symptomatic cerebral hemorrhage, incidence of pneumonia, and recurrence rate of stroke after 90 days.
The study is being conducted to evaluate whether the efficacy of SHR-A1811 is better than Pyrotinib in combination with Capecitabine in HER2-Positive, Unresectable and/or Metastatic Breast Cancer Subjects Previously Treated With Trastuzumab and Taxane.
The purpose of this study is to characterize safety and to determine the putative recommended Phase 2 dose(s) (RP2D[s]) and optimal dosing schedule(s) of JNJ-80948543 in Part A (Dose Escalation) and to further characterize the safety of JNJ-80948543 at the putative RP2D(s) in Part B (Cohort Expansion).
The research objectives is to compare vitro 3D drug sensitivity test results of micro tumor (PTC) with the clinical outcomes of patients, evaluate the consistency between the test results of the technology platform and the clinical prognosis, and explore the decision-making value and guiding significance of this technology in assisting the precise treatment of colorectal cancer. The completion of this study will provide real-world data support for the clinical application of micro tumor (PTC) in vitro 3D drug sensitivity detection technology, and provide more valuable reference basis for realizing the individualization and accuracy of colorectal cancer treatment and improving the clinical benefit rate.
Spontaneous intracerebral hemorrhage(SICH) is the most lethal and disabling stroke. Timely and accurate assessment of patient prognosis could facilitate clinical decision making and stratified management of patients and is important for improving patient clinical prognosis. However, current studies on the prediction of prognosis of patients with SICH are limited and only include a single variable, with less precise results and inconvenient clinical application, which may lead to delays in effective patient treatment. Our group's previous studies on SICH showed that hematoma heterogeneity and the degree of contrast extravasation within the hematoma are closely related to the clinical outcome of patients, but they are difficult to describe quantitatively based on imaging signs. Based on this, we propose to use radiomics to quantitatively extract hematoma features from NCCT and CTA images, combine them with patients' clinical information and laboratory tests, study their relationship with the prognosis of cerebral hemorrhage, and use artificial intelligence to establish a rapid and accurate prognostic prediction model for patients with SICH, which is of great significance to guide clinical individualized treatment.
Adding PD-1 inhibitors to neoadjuvant chemoradiotherapy has shown promising results in locally advanced resectable esophageal squamous cell carcinoma (ESCC). However, there is a need to explore safer and more effective treatment doses and schedules. This is an open labeled, prospective, single-arm phase II trial to evaluate the safety and efficacy of the short course neoadjuvant chemo-radiotherapy plus Toripalimab for locally advanced resectble ESCC.