Trial of Aflibercept Monotherapy With DCE-US in Chemorefractory Metastatic Colorectal Cancer
- Conditions
- Colorectal Cancer
- Interventions
- Procedure: Dynamic Contrast Enhanced Ultrasound
- Registration Number
- NCT03264274
- Lead Sponsor
- Barts & The London NHS Trust
- Brief Summary
Various antiangiogenic agents have a modest effect in prolonging overall survival in solid tumours. In colorectal cancer it is clear that there are some patients in whom bevacizumab significantly prolongs survival, but it is not effective in the majority of patients. Biomarker studies using tumour tissue and blood have failed to define a consistent biomarker that correlates with a beneficial effect of bevacizumab on survival. DCE-MRI can detect changes in tumour blood flow which, in early phase drug studies, correlated with subsequent tumour responses, but is too expensive and time consuming to be used in larger scale trials. DCE-US is a promising biomarker for use in this group of patients with antiangiogenic agents, as detailed above. The investigators wish to use this technique as a predictive biomarker for any effects Aflibercept has on OS and PFS in patients with metastatic colorectal cancer refractory to standard treatment.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- WITHDRAWN
- Sex
- All
- Target Recruitment
- Not specified
Not provided
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Aflibercept + DCE-US Aflibercept Aflibercept: 4mg/kg IV every 2 weeks until discontinuation due to progression. DCE-US before treatment, and at 2 weeks and 8 weeks after the first Aflibercept administration. Aflibercept + DCE-US Dynamic Contrast Enhanced Ultrasound Aflibercept: 4mg/kg IV every 2 weeks until discontinuation due to progression. DCE-US before treatment, and at 2 weeks and 8 weeks after the first Aflibercept administration.
- Primary Outcome Measures
Name Time Method Overall survival 1 year
- Secondary Outcome Measures
Name Time Method Progression-free survival 1 year