Biomarkers for Apatinib and Bevacizumab in Second-line Therapy for Colorectal Cancer(BABST-C) — BABST-C  

Colorectal Neoplasms Clinical Trial

Official title: The Biomarkers Identification for Apatinib and Bevacizumab in the Second-line Therapy for Colorectal Cancer: A Randomised Controlled Trial

Status Suspended

Clinical Trial Summary

Bevacizumab, an antibody against vascular endothelial generated factor (VEGF), combined with the fluorouracil-based chemotherapy regimens has been approved in the 1st and 2nd line treatments for metastatic colorectal cancers(mCRC). Other inhibitors of the VEGF pathway, such as Ramucirumab and Aflibercept are also approved in the 2nd line therapy. Apatinib is a small molecule tyrosine kinase inhibitor (TKI), which can highly selectively bind to and strongly block VEGF receptor 2 (VEGFR - 2), resulting in reduced cell migration, proliferation, and tumor microvascular density mediated by VEGF . In this study, the patients who have progressed following or on the first-line oxaliplatin and fluorouracil（5-FU） combined with bevacizumab are randomised into two arms(FOLFIRI plus apatinib or FOLFIRI plus bevacizumab) in the 2nd line setting. To identify specific biomarkers at the genetic and proteomic levels between two arms is the primary end point.

Clinical Trial Description

Based on inclusion and exclusion criteria, eligible mCRC patients are enrolled. the chest-abdonimal-pelvic CT with brain MRI and blood tests are examined to assess base-line measurable lesions and guarantee adequate organ function prior to enrollment. The written consents are signed before enrollment. Randomise patients into two arms: Arm A-apatinib plus FOLFIRI regimen and arm B-bevacizumab plus FOLFIRI regimen. Patients will be given full-dose drugs or reduced-dose drugs if serious toxicities ( CTCAE v4.0 criteria grade 3/4) are complained since previous cycle of treatment.

Symptoms and blood test results (including carcinoembryonic antigen（CEA）and CA199) before each cycle will be recorded. Radiological assessment consisting of chest-abdonimal-pelvic CT together with brain MRI will be performed every 3 months.

Collect biopsy specimens and peripheral blood from mCRC patients every 3 months since randomisation. Identify differential biomarkers between apatinib and bevacizumab and define these biomarkers' prognostic and predictive significances. ;

Related Conditions & MeSH terms

• Colorectal Neoplasms

• NCT number: NCT03743428
• Study type: Interventional
• Source: Shenzhen People's Hospital
• Status: Suspended
• Phase: N/A
• Start date: October 22, 2020
• Completion date: December 31, 2026