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Trial of Aflibercept Monotherapy With DCE-US in Chemorefractory Metastatic Colorectal Cancer

Phase 2
Withdrawn
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WITHDRAWN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
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Aflibercept + DCE-USAfliberceptAflibercept: 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-USDynamic Contrast Enhanced UltrasoundAflibercept: 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
NameTimeMethod
Overall survival1 year
Secondary Outcome Measures
NameTimeMethod
Progression-free survival1 year
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