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Showing 1-20 of 984 trials
NCT00342654
Two large, nutritional intervention trials were conducted in Linxian, China between 1985-1991. These trials tested the effect of multiple vitamins and minerals in the prevention of esophageal cancer in a population with the highest known rate for this disease in the world. Results from the trials showed that Beta-carotene + Vitamin E + selenium reduced total mortality, total cancer mortality, and stomach cancer incidence and mortality. Multivitamins/minerals also showed reduction in premalignant lesions. Preliminary follow-up data obtained for the time period after cessation of intervention in 1991 suggests that the observed benefit for total and cancer mortality is reduced but that the benefit for stomach cancer remains. The objectives of the follow-up study are: (1) to continue to determine cancer incidence and all causes of mortality in trial participants after intervention to permit examination of potential effects of the interventions on total and cause-specific mortality and cancer incidence in the post-intervention period; (2) to conduct a cross-sectional nutritional survey in a subsample of living trial participants to evaluate their nutritional status, asses the validity of dietary questionnaires, and relate neurologic status to vitamin B12 plasma levels; (3) to collect a blood sample from all living trial participants to permit further etiologic investigations of genetic and environmental hypotheses; and (4) to perform nested case-control studies of selected genetic and environmental hypotheses. To accomplish the objectives of the follow-up study, we will: (1) determine updated vital status and cancer status data on all trial participants via monthly checks of village doctor records and quarterly checks of the Linxian Cancer Registry; conduct a Vital/Cancer Status Interview Survey among all (n-34,000 trial participants (or their surrogates); identify, collect, and store all available diagnostic materials for trial participants identified as having developed cancer or died with cancer during the follow-up period; (2) conduct a Nutritional Survey on a subsample (n-1000) of living trial participants that will include (a) a physical exam and brief medical history, (b) a neurologic history, (c) a cognitive function exam, (d) a hair/mouth skin exam, (e) a neurological exam, (f) a nutritional questionnaire, and (g) collection of a blood sample for hematologic/biochemical analyses; (3) conduct a Blood Collection Survey of all living trial participants (n-23,000) to obtain (a) a physical exam and brief medical history and (b) a single 10-ml blood sample for separation and preservation as WBCs (both viable and nonviable), RBCs, and plasma for genetic (e.g., xenobiotic polymorphisms) and environmental (e.g., plasma ascorbic acid) hypothesis testing; and (4) perform Nested Case-Control Studies of selected genetic and environmental hypothesis related to the etiology and prevention of esophageal cancer and stroke. These will be done using serum from the new cancer and stroke cases (-2500) and controls (-2500) previously identified from 1991-1996, as well as using new cancer and stroke cases and controls for the period 1996-2004 (-9000). The followup for endpoints will continue monthly for an additional 5 years (through the year 2003). The Nutritional Survey and Blood Collection Survey will be conducted in the spring of 1999. The Nested Case-Control studies will be performed annually beginning in 2000, and the Vital/Cancer Interview Survey will be conducted in the Spring of 2001.
NCT07660627
Preoperative neoadjuvant chemotherapy is the standard treatment for locally advanced gastrointestinal tumours. However, not all patients respond to preoperative treatment. Early identification of progression during neoadjuvant chemotherapy or diagnosis of early disease relapse during adjuvant treatment is essential to modify the treatment strategy. The aim of this project is to validate ctDNA as a biomarker of molecular relapse/progression of disease.
NCT07432633
This is a multi-center, open-label, single-arm, Phase 1/2 study designed to evaluate the safety, radiation dosimetry, and preliminary diagnostic performance of \[18F\]FPyQCP in detecting colorectal cancer (CRC), gastric cancer (GC), pancreatic ductal adenocarcinoma (PDAC), invasive lobular breast cancer (ILC), and epithelial ovarian cancer (EOC).
NCT05514717
A Study of XMT-2056 in advanced/recurrent solid tumors that express HER2.
NCT06764875
This is a Phase Ⅲ, randomized, open-label, Sponsor-blinded, 3-arm, global, multicenter study assessing the efficacy and safety of rilvegostomig in combination with fluoropyrimidine and T-DXd (Arm A) compared to trastuzumab, chemotherapy, and pembrolizumab (Arm B) in HER2-positive locally advanced or metastatic gastric or GEJ adenocarcinoma participants whose tumors express PD L1 CPS ≥ 1. Rilvegostomig in combination with trastuzumab and chemotherapy will be evaluated in a separate arm (Arm C) to assess the contribution of each component in the experimental arm.
NCT07615907
Eligible patients were randomized into two groups: the sodium propionate group and the control group. In the control group, patients received placebo combined with anti-PD-1 therapy plus chemotherapy without additional sodium propionate intervention. In the sodium propionate group, on the basis of anti-PD-1 therapy combined with chemotherapy, patients were additionally administered oral sodium propionate capsules at a dose of 500 mg (1 capsule) twice weekly, with a total intervention duration of 12 weeks. The primary and secondary outcome indicators will be collected for subsequent analysis.
NCT07431281
The purpose of this study is to evaluate the efficacy and safety of sonesitatug vedotin in combination with capecitabine with or without rilvegostomig in first-line (1L) Claudin18.2 (CLDN18.2)-positive, human epidermal growth factor receptor 2 (HER2)-negative, gastric, gastroesophageal junction (GEJ), and esophageal adenocarcinoma.
NCT04923932
Treating Gastric Cancer and Esophagogastric junction adenocarcinoma Patients with MET gene amplifications with Savolitinib
NCT05872295
This study will evaluate the recommended dose for further clinical development, safety, tolerability, anti-tumor activity, immunogenicity, pharmacokinetics and pharmacodynamics of IKS014, a HER2 targeting antibody-drug conjugate, in patients with advanced solid tumors.
NCT06609759
For patients with stage II-III gastric cancer after radical D2 resection and R0 resection, postoperative adjuvant therapy guided by ctDNA-MRD (MRD-GATE external cohort) was not inferior to the standard chemotherapy regimen (this cohort).
NCT05379972
This study is an open-label, phase II study with a safety lead-in to assess the response rate of induction olaparib and stereotactic beam radiotherapy (SBRT) followed by combination olaparib/pembrolizumab in patients with metastatic gastric and GEJ cancers after at least one of therapy.
NCT07365124
The aim of this study is to learn whether using MRI (magnetic resonance imaging) scans to plan radiotherapy is better than using CT (computed tomography) scans alone. The main questions it aims to answer is: * Can MRI scan images be adjusted to make the tumour and normal tissues easier to see? * Does adding MRI to a radiotherapy planning CT make the radiotherapy plan more precise? * Can MRI be used to adjust a radiotherapy plan during a course of treatment to make it more precise, and might that reduce the side effects? * Are there particular MRI scans that can predict how a tumour will respond to radiotherapy or how likely the patient is to have side effects? This study will assess current MRI scanning procedures and ensure these are adjusted to best suit radiotherapy planning. It will also provide pilot data evaluating: 1. MRI-adapted radiotherapy Usually, radiotherapy plans are based on a pre-treatment planning CT scan. Unless an issue is detected the patient would complete their whole course of radiotherapy on this plan. This does not account for changes in position/size/shape of the tumour that occur over the whole treatment course. Clinicians therefore increase the size of the tumour/target to account for these uncertainties, which can increase side effects. This study will assess the potential to reduce side effects from radiotherapy by using repeat MRI scans and replanning during the treatment course (MRI-adaptive radiotherapy). 2. Imaging biomarkers MRI sequences can be used to predict response to radiotherapy or chance of developing side effects. This study will identify potential MRI sequences that may be used as imaging biomarkers, to guide the development of future clinical trials. The study will be undertaken at SBUHB, lasting 4 years, and involving ≤15 healthy volunteers and ≤150 patients.
NCT07556640
In this study, the investigators will use LM-302 and S-1 plus intraperitoneal paclitaxel with or without Cadonilimab to treat Claudin 18.2-positive gastric or gastroesophageal junction adenocarcinoma with peritoneal metastasis.
NCT06921928
The purpose of this study is to evaluate the safety, tolerability, PK, immunogenicity, pharmacodynamics, and preliminary efficacy of AZD4360 in adult participants with locally advanced or metastatic solid tumours selected for expression of CLDN18.2.
NCT06257264
This study is a first-in-human (FIH), Phase 1a/1b study of BG-68501, a cyclin-dependent kinase-2 inhibitor (CDK2i), to assess the safety, tolerability, pharmacokinetics (PK), pharmacodynamics, and preliminary antitumor activity of BG-68501 in participants with advanced, nonresectable, or metastatic solid tumors as monotherapy and in combination with fulvestrant with or without BGB-43395, a selective CDK4 inhibitor, in adults with hormone receptor positive (HR+)/human epidermal growth factor receptor 2 negative (HER2-) breast cancer (BC). The study will also identify a recommended dose for expansion (RDFE) for BG-68501 as monotherapy and in combination for subsequent disease directed studies. The study will be conducted in 2 parts: Part 1 (dose escalation and safety expansion, including evaluation of food effect) and Part 2 (dose expansion).
NCT06893133
Numerous studies have demonstrated that circulating tumor DNA (ctDNA)-based molecular residual disease (MRD) detection has significant clinical value in postoperative recurrence monitoring, adjuvant treatment decision-making, and early intervention. Our previous retrospective study, using fixed ctDNA-MRD, confirmed that postoperative ctDNA-MRD can predict recurrence risk. Therefore, we plan to conduct a further prospective, multicenter, observational study, utilizing a combination of personalized ctDNA-MRD and fixed MRD panels, to dynamically monitor gastric cancer patients who have received neoadjuvant therapy followed by curative resection. The study will systematically analyze the correlation between ctDNA-MRD status and tumor recurrence and metastasis, assess its sensitivity and specificity in recurrence prediction, and compare its early warning advantage over traditional imaging techniques in predicting recurrence.
NCT02734004
The purpose of this study is to look at the effectiveness, safety, and antitumor activity of study drugs MEDI4736 in combination with olaparib (modules 1, 2, 3, 4, 5 and 7) and MEDI4736 in combination with olaparib and bevacizumab (module 6). It will also examine what happens to the study drugs in the body and investigate how well the combination between MEDI4736, olaparib and bevacizumab is tolerated.
NCT06427941
This is a first-in-human (FIH) clinical study designed to evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD), and anti-tumor activity of BGB-B2033 administered as monotherapy and in combination with tislelizumab, with or without bevacizumab. The study will enroll participants with locally advanced or metastatic hepatocellular carcinoma (HCC), alpha-fetoprotein (AFP)-producing gastric cancer (GC), extragonadal yolk sac tumors/non-dysgerminomas, or glypican-3 (GPC3)-positive squamous non-small cell lung cancer (NSCLC).
NCT05861947
A Phase I, Open Label, Dose-Escalation, First in Human (FIH) Study Evaluating the Safety, Pharmacokinetics, Pharmacodynamics and Efficacy of AUR106 in Patients with Select Relapsed Advanced Malignancies (JIVAN).
NCT07537348
Based on existing literature, we posit that a leucine-restricted diet is safe and well-tolerated in patients with advanced gastric cancer receiving combined chemotherapy and immunotherapy. Patients adhering to this dietary regimen exhibit a significant reduction in serum leucine concentrations, with no notable impact on the serum levels of other amino acids. Furthermore, leucine restriction promotes the activation of immune cells within the tumor microenvironment. When applied in conjunction with chemotherapy and immunotherapy for advanced gastric cancer, this approach demonstrates synergistic anti-tumor efficacy. It is expected to enhance tumor response rates , improve the 1-year survival rate, prolong overall survival (OS), and ultimately optimize patient prognosis.