Association Between Tumor Size and Prognosis in Patients With Small Bowel adenocarcinoma-a SEER-based Study

Observational Study on the Patients With Rectal Cancer

NCT02312284 ·Status: COMPLETED

Recent Trends in Stage Migration of Gastrointestnial Carcinoid Tumors Over Two Decades: a Retrospective SEER-based Analysis 2000-2022

NCT07317726 ·Status: COMPLETED

Establishment and Validation of a Predictive Model for the Risk of Colorectal Advanced Adenomas

NCT05152082 ·Status: UNKNOWN

Exploring the Predictive Effect of Intestinal and Oral Microbiota on the Efficacy of Neoadjuvant Radiotherapy and Chemotherapy for Locally Advanced Rectal Cancer Based on Machine Learning

NCT07346729 ·Status: COMPLETED

CRC Post-surgical Assessment and Recurrence Monitoring

NCT03334890 ·Status: UNKNOWN

Patient-derived Organoids Predicts the Clinical Efficiency of Colorectal Liver Metastasis

NCT05183425 ·Status: UNKNOWN

In-hospital Outcomes of Older Patients With Gastric Cancer and Their Risk Factors

NCT06185907 ·Status: COMPLETED

A Prospective Multicentre Clinical Study of Dynamic Monitoring of Plasma ctDNA Methylation Markers to Predict Recurrence of Colorectal Cancer After Complete Resection of Peritoneal Metastases

NCT06903325 ·Status: RECRUITING

Endoscopic Ultrasound Predict the Sensitivity of Stage II / III Rectal Cancer Preoperative Concurrent Chemoradiotherapy

NCT01582750 ·Status: UNKNOWN

Tumor Response Prediction in Neoadjuvant Chemoradiation of Locally Advanced Rectal Cancer Using Metabonomics Analysis

NCT03149978 ·Status: UNKNOWN

Explore Biomarkers Associated With Prognosis of Recurrent and Metastatic CRC After Surgery by Multi-omics Methods

NCT05501353 ·Status: RECRUITING

The Risk of Second Primary Gastrointestinal Malignancies Following Primary Gastrointestinal Carcinoid Tumors: a SEER Based Study 2000-2022

NCT07291752 ·Status: COMPLETED

A Prospective Study of Expression Profiling-based Assessment of the Efficacy of Neoadjuvant Therapy for Rectal Cancer

NCT06746298 ·Status: NOT_YET_RECRUITING

Radiomics-based Artificial Intelligence System to Predict Neoadjuvant Treatment Response in Rectal Cancer

NCT04273477 ·Status: UNKNOWN

Prognosis Stratification for pT4bN0M0 Colorectal Cancer Following Multivisceral Resection

NCT06115837 ·Status: COMPLETED

Detect Microsatellite Instability Status in Blood Sample of Advanced Colorectal Cancer Patients by Next-Generation Sequencing

NCT03561350 ·Status: UNKNOWN

Predictive Effect of Abdominal Fat and Muscle Area Calculated Based on Abdominal CT on Colorectal Cancer Patients

NCT06614699 ·Status: ACTIVE_NOT_RECRUITING

Clinical Relevance of Major Pathologic Regression for Locally Advanced Rectal Cancer

NCT06879197 ·Status: COMPLETED

Prospective Trial for the Evaluation of Radiogenomics in Advanced Rectal Cancer

NCT04287400 ·Status: RECRUITING

Microbiota and Carcinogenesis of Small-intestine Neuroendocrine Tumors

NCT06624865 ·Status: RECRUITING

Microbiome and Rectal Cancer

NCT04223102 ·Status: ACTIVE_NOT_RECRUITING ·Phase: NA

Second Primary Cancer and Early-onset Colorectal Cancer

NCT06423924 ·Status: NOT_YET_RECRUITING

To Explore the Diversity of Intestinal Flora in Patients With Advanced HCC Combin ed With Anti-PD-1 and Targeted Drug Therapy and the Correlation Between Metabolites and Therapeutic Effect

NCT04101747 ·Status: UNKNOWN

PCSK9 Inhibitor and PD-1 Inhibitor Combined With Neoadjuvant Chemoradiotherapy for pMMR/MSS Locally Advanced Rectal Cancer

NCT06933251 ·Status: ACTIVE_NOT_RECRUITING ·Phase: PHASE2

An Exploratory Study of Sequential Transarterial Chemoembolization With Lipiodol and Neoadjuvant Chemotherapy in the Treatment of Initial Unresectable Colorectal Cancer (CRC)

NCT05340231 ·Status: NOT_YET_RECRUITING ·Phase: PHASE2