Found 64,783 clinical trials
Fluad vs. Fluzone High-Dose Vaccine Effectiveness Among Adults ≥65 Years
This study will evaluate the relative vaccine effectiveness of quadrivalent adjuvanted inactivated influenza vaccine (aIIV4) versus quadrivalent high-dose inactivated influenza vaccine (HD-IIV4) in preventing polymerase chain reaction (PCR)-confirmed influenza and influenza-related outcomes in adults ≥65 years of age during the 2023/24 and 2024/25 influenza seasons. The study is an observational …
Developing Brain, Impulsivity and Compulsivity
Background Impulsivity is acting 'without thinking.' Compulsivity is being overly inflexible. People vary in how impulsive or compulsive they are. Extreme versions of these behaviors play a role in mental disorders. Researchers want to study changes in the brain to learn more about these behaviors. Differences in genes may also …
China Lymphoma Patient Registry Study
Lymphoma is the most common hematologic tumor. It is derived from lymphoid tissue, including Hodgkin's lymphoma(HL) and non Hodgkin's lymphoma(NHL). The treatment of lymphoma includes chemotherapy, radiotherapy, stem cell transplantation, targeted therapy and surgery etc. With the progress of treatment, the survival rate of lymphoma patients has been improved. But …
Molecular and Genetic Analysis of Lung Cancer
Investigators use a genome-wide approach within a case-control design to identify SNPs that show evidence of association with lung cancer risk and survival.
LEVANTIS-0087A: GAGomes for Multi-Cancer Early Detection in Asymptomatic Adults (LEV87A)
LEVANTIS-0087A (LEV87A) is a retrospective in vitro diagnostics clinical validation population cohort-based case-control study to validate the diagnostic performance of free GAGome-based tests for multi-cancer early detection (MCED) in adults asymptomatic for cancer and with no recent history of cancer.
Epstein-Barr Virus and Cancer Risks
The goal of this prospective cohort study is to investigate the associations between Epstein-Barr Virus (EBV) antibody levels and the risk of overall and site-specific cancer types in Southern China. The main questions it aims to answer are: Question 1: In addition to the established EBV-associated cancer types, such as …
African Cancer Genome: GMD
The goal of this study is to develop a comprehensive characterization of genetic and molecular drivers of breast and prostate cancer in individuals of African ancestry. The study is conducted by the African Caribbean Cancer Consortium (AC3) and involves the recruitment of patients from nine international AC3 research sites in …
ANCA II - Quality of Life and Functional Outcome in Patients With Anal Cancer
Anal cancer is a rare disease, but the incidence is rising. About 200 patients will get this type of cancer yearly in Sweden. Curative treatment includes chemotherapy and radiotherapy. The prognosis is good, but some patients will have recurrent or persistent disease after concluded chemo-radiotherapy and will then be offered …
Li-Fraumeni & TP53 (LiFT UP): Understanding and Progress
The purpose of this research study is to learn more about variants in the TP53 gene both associated with Li-Fraumeni Syndrome (LFS), a hereditary cancer risk condition, and TP53 variants found in the blood for other reasons (e.g. ACE/CHIP and mosaicism).
Retrospective Study on Microbial Diversity in Paraffin Tissue of Pancreatic Diseases
The great harm of pancreatic diseases and the unknown etiology and pathogenesis make it difficult to intervene in most early cases in time. Previous studies by scholars and applicants at home and abroad have shown that the microflora in pancreatic tissue is closely related to chronic pancreatitis and pancreatic cancer. …
