Avastin in Combination With Chemotherapy for RAS Mutant Unresectable Colorectal Liver-limited Metastases

Study of Avastin in Combination With Chemotherapy for the First Line Treatment of RAS Mutant Unresectable Colorectal Liver-limited Metastases

In this study, the investigators assessed the effect of avastin in combination with chemotherapy in the treatment of RAS mutant-type, unresectable colorectal liver-limited metastases

Study Overview

• Status: Completed
• Conditions: Colorectal Neoplasms
• Intervention / Treatment: Drug: avastin; Drug: mFOLFOX6

Detailed Description

Patients will be eligible for inclusion if the patients have histologically confirmed colorectal adenocarcinoma with RAS mutant liver-confined metastases deemed non-resectable. Eligible patients will be randomly assigned to chemotherapy plus avastin (arm A) or chemotherapy alone (arm B). Treatment will continue until tumor response indicates suitability for surgery for liver metastases or until disease progression or unacceptable toxic effects. The primary endpoint is the conversion rate to radical resection for liver metastases，which will be assessed by local multidisciplinary team (includes more than three liver surgeons and one radiologist) with the use of contrast-enhanced CT or MRI after 4 cycles and then every other 4 cycles up to 12 cycles. To provide an objective assessment of changes in resectability, radiological images will be presented by a radiologist to more than 3 liver surgeons, who are blinded to the clinical data. Patients will be considered resectable if 50% or more of surgeons vote for radical resection of LM. For patients whose liver-metastases are assessed resectable, resection should be scheduled to be performed within 2~3 weeks of the last treatment cycle. Following resection, patients will be advised to continue the same therapeutic regimen until the treatments reach a sum of 12 cycles.

• Study Type: Interventional
• Enrollment (Actual): 241
• Phase: Phase 4

Contacts and Locations

Study Locations

• China
  • Shanghai
    • Shanghai, Shanghai, China, 200000
      • Zhongshan Hospital, Fudan University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 75 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Age ≥ 18 and ≤ 75 years;
2. Primary tumour was histologically confirmed colorectal adenocarcinoma;
3. Together with clinical or radiological evidence of first occurrence of non-resectable liver-only metastases
4. With evidence of tumor RAS gene mutant status;
5. With at least one measurable tumor.
6. Performance status (ECOG) 0~1
7. A life expectancy of ≥ 3 months
8. Adequate hematological function: Neutrophils≥1.5 x109/l and platelet count≥100 x109/l; Hb ≥9g/dl (within 1 week prior to randomization)
9. Adequate hepatic and renal function: Serum bilirubin≤1.5 x upper limit of normal (ULN), alkaline phosphatase ≤5x ULN, and serum transaminase (either AST or ALT) ≤ 5 x ULN(within 1 week prior to randomization);
10. Written informed consent for participation in the trial.

Exclusion Criteria:

1. Previous exposure to target therapy, chemotherapy, radiotherapy or intervention therapy for colorectal liver metastases.
2. Known or suspected extrahepatic metastases.
3. Patients with known hypersensitivity reactions to any of the components of the study treatments.
4. Having previously participated in a study which included a possibility of being allocated to avastin therapy (whether or not the patient actually received avastin)
5. Clinically relevant coronary artery disease or a history of a myocardial infarction within the last 12 months or left ventricular ejection fraction (LVEF) below the institutional range of normal
6. Acute or sub-acute intestinal occlusion
7. Pregnancy (absence confirmed by serum/urine β-HCG) or breast-feeding
8. Other previous malignancy within 5 years, with exception of a history of a previous basal cell carcinoma of the skin or pre-invasive carcinoma of the cervix
9. Known drug abuse/ alcohol abuse
10. Legal incapacity or limited legal capacity
11. Pre-existing peripheral neuropathy.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: ARM A; patients received avastin in combination with mFOLFOX6	Drug: avastin; Drug: avastin On day 1 of a 14 day treatment cycle, patients received a 2-hour infusion of avastin (5mg/kg) followed by chemotherapy of mFOLFOX6 until progressive disease or unacceptable toxicity.; Other Names: Bevacizumab; Drug: mFOLFOX6; mFOLFOX-6 (oxaliplatin, 85mg/m2 on day 1 infused during 2 hours;LV400mg/m2 on days 1 infused during 2 hours, followed by FU 400 mg/m2 intravenous bolus then 2400 mg/m2 continuous infusion for 46 hours)
Active Comparator: ARM B; Patients received mFOLFOX6 alone	Drug: mFOLFOX6; mFOLFOX-6 (oxaliplatin, 85mg/m2 on day 1 infused during 2 hours;LV400mg/m2 on days 1 infused during 2 hours, followed by FU 400 mg/m2 intravenous bolus then 2400 mg/m2 continuous infusion for 46 hours)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
the rate of patients converted to resection for liver metastases	To explore whether avastin in combination with chemotherapy as treatment could improve the resection rate in patients with RAS mutant-type, unresectable colorectal liver-limited metastases compared with chemotherapy alone.	3 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
progression free survival	PFS will be defined as the period from the first day of avastin treatment or chemotherapy to the date of disease progression (PD) or to death. Patients without PD who discontinued the study for any reason is censored at the last on-study tumor assessment date.or distant(i.e. metastasis) disease recurrence or death.	3 years
overall survival	OS will be calculated from randomization to death from any cause or the date of the last follow-up, at which point the data will be censored.	3 years
tumor response		3 years

Collaborators and Investigators

• Sponsor: Xu jianmin

Publications and helpful links

General Publications

• Tang W, Ren L, Liu T, Ye Q, Wei Y, He G, Lin Q, Wang X, Wang M, Liang F, Cui Y, Xu J. Bevacizumab Plus mFOLFOX6 Versus mFOLFOX6 Alone as First-Line Treatment for RAS Mutant Unresectable Colorectal Liver-Limited Metastases: The BECOME Randomized Controlled Trial. J Clin Oncol. 2020 Sep 20;38(27):3175-3184. doi: 10.1200/JCO.20.00174. Epub 2020 Aug 4.

Study record dates

Study Major Dates

• Study Start (Actual): October 1, 2013
• Primary Completion (Actual): December 1, 2017
• Study Completion (Actual): June 1, 2019

Study Registration Dates

• First Submitted: September 23, 2013
• First Submitted That Met QC Criteria: October 29, 2013
• First Posted (Estimate): October 30, 2013

Study Record Updates

• Last Update Posted (Actual): December 17, 2019
• Last Update Submitted That Met QC Criteria: December 15, 2019
• Last Verified: December 1, 2019

More Information

Terms related to this study

• Keywords: chemotherapy; avastin; liver metastasis; colorectal neoplasms
• Additional Relevant MeSH Terms: Digestive System Diseases; Pathologic Processes; Neoplasms; Neoplasms by Site; Gastrointestinal Neoplasms; Digestive System Neoplasms; Gastrointestinal Diseases; Colonic Diseases; Intestinal Diseases; Intestinal Neoplasms; Rectal Diseases; Neoplastic Processes; Colorectal Neoplasms; Neoplasm Metastasis; Physiological Effects of Drugs; Antineoplastic Agents; Antineoplastic Agents, Immunological; Angiogenesis Inhibitors; Angiogenesis Modulating Agents; Growth Substances; Growth Inhibitors; Bevacizumab
• Other Study ID Numbers: ACCMCLM