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Clinical Trials in China / NCT06849362
Enrolling by invitation Observational

Multicenter Retrospective Study on Optimizing Combination Immunotherapy Strategies in MSS/MSI-L/pMMR Advanced Colorectal Cancer

NCT06849362 · tracked via the Priya Life Science China tracker
Sponsor
Yue Gou
Phase
Observational
Started
2019-12-01
Last updated
2025-02-27

Condition(s) studied

Metastatic Colorectal Cancer (CRC)MSS Metastatic Colorectal CancerImmunotherapy

Investigational drug(s) / intervention(s)

Bevacizumab

Bevacizumab: Bevacizumab is an anti-vascular endothelial growth factor (VEGF) monoclonal antibody used in combination with chemotherapy or immunotherapy for the treatment of metastatic colorectal cancer (CRC). In this study, bevacizumab is administered as part of combination therapy in certain patient groups to assess its impact on treatment efficacy in MSS/MSI-L/pMMR advanced colorectal cancer. Patients receiving bevacizumab will be evaluated for treatment response, survival outcomes, and potential biomarkers predictive of therapeutic efficacy. The study will compare the clinical benefits of immunotherapy alone, immunotherapy + bevacizumab, and immunotherapy + chemotherapy + bevacizumab to determine the optimal treatment strategy. The dose and administration schedule of bevacizumab will follow standard clinical guidelines as per institutional protocols.

Study summary

This multicenter retrospective study aims to evaluate and optimize combination immunotherapy strategies for patients with microsatellite stable (MSS), microsatellite instability-low (MSI-L), or mismatch repair-proficient (pMMR) advanced colorectal cancer (CRC). The study will analyze clinical outcomes, treatment responses, and prognostic factors in patients who received various immunotherapy regimens. Data from multiple institutions will be collected to identify potential predictive biomarkers and effective therapeutic combinations. The findings may provide critical insights for improving immunotherapy strategies in MSS/MSI-L/pMMR CRC patients.

Eligibility

Sex
ALL
Min age
Max age
Healthy volunteers
No
Inclusion Criteria:1) study subjects were mCRC patients with explicitly stated MSS/MSI-L/pMMR status; 2) at least one cohort included immunotherapy treatment; 3); primary outcomes of this study were defined as Disease Control Rate (DCR) and Progression-Free Survival (PFS); secondary outcomes included Objective Response Rate (ORR), Overall Survival (OS), and Adverse Drug Reactions (ADRs) Exclusion Criteria: individuals lacking definitive pathological diagnosis, response evaluation, or pertinent follow-up data \-

Primary outcome measure(s)

Trial sites (1)

FacilityCityRegionStatus
Xiangya hospital, CSU Changsha Hunan

On this site

📄 Avastin (bevacizumab) drug profile →

Other trials for the same condition

Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT06849362 on ClinicalTrials.gov ↗ ← All trials in China