Combination With Sintilimab and XELOX+Bevacizumab as 1st Line Therapy in RAS-mutant Metastatic Colorectal Cancer

NCT05171660 | Active Not Recruiting Phase 3 DMC

• 1 other identifier: 2021-1013
• Study Type: interventional
• Target: 446
• Locations: 1 country
• Sites: 1

Brief Summary

Sintilimab (R\&D code: IBI308) is a recombinant human-derived IgG4 type PD-1 monoclonal antibody. PD-1 inhibitor combined with chemotherapy has synergistic effect to further enhance anti-tumor immunity. This study is a phase III clinical study of a three-week regimen of sintilimab combined with the XELOX+ bevacizumab for RAS-mutant metastatic colorectal cancer patients who had not received any treatment before. The purpose of this study is to explore the efficacy of sintilimab combined with XELOX + bevacizumab as first line therapy.

Conditions

Colorectal Cancer Stage IV

Keywords

Colorectal Cancer Stage IV,; RAS gene mutation; Microsatellite stable

Outcome Measures

Primary Outcomes (1)

• Progression free survival time

  Progression-free survival is defined as the time from randomization to the first documented disease progression according to RECIST version 1.1, or to death from any cause, whichever occurred first.

  From randomization to the first documented disease progression, or to death from any cause, up to 2 years

Secondary Outcomes (5)

• Objective Response Rate

  From randomization to disease progression

• Overall survival time

  From randomization to death from any cause, up to 3 years

• Disease control rate

  From randomization to disease progression

• Clinical benefit rate

  From randomization to disease progression

• Adverse Events

  From randomization to 28 days after disease progression

Study Arms (2)

Sintilimab + XELOX + Bevacizumab

EXPERIMENTAL

Sintilimab + XELOX + Bevacizumab

Drug: Sintilimab; Drug: Bevacizumab; Drug: Oxaliplatin; Drug: Capecitabine

XELOX + Bevacizumab

ACTIVE COMPARATOR

XELOX + Bevacizumab

Drug: Bevacizumab; Drug: Oxaliplatin; Drug: Capecitabine

Interventions

Sintilimab DRUG

Sintilimab Injection: 200 mg, i.v., D1, Q3W

Sintilimab + XELOX + Bevacizumab

Bevacizumab DRUG

intravenous bevacizumab (7.5 mg/kg, day 1) in each 21-day cycle

Sintilimab + XELOX + Bevacizumab; XELOX + Bevacizumab

Oxaliplatin DRUG

intravenous oxaliplatin (130 mg/m2, day 1) in each 21-day cycle

Sintilimab + XELOX + Bevacizumab; XELOX + Bevacizumab

Capecitabine DRUG

oral capecitabine (1 g/m2, days 1-14) in each 21-day cycle

Sintilimab + XELOX + Bevacizumab; XELOX + Bevacizumab

Eligibility Criteria

• Age: 18 Years - 75 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Male or female, age ≥ 18 years old, ≤ 75 years old
• Metastatic colorectal adenocarcinoma confirmed by histology, metastases cannot be removed
• RAS mutation, BRAF V600E wild type, and microsatellite stable
• ECOG 0 to 1
• Life expectancy is at least 12 weeks
• Hematological examination absolute neutrophil count (ANC)\>1.5×109/L, hemoglobin\>8g/dL and platelet\>100×109/L (according to the normal value of clinical trial center)
• Prothrombin time (PT) \< 1.5 times the upper limit of normal value and normal thromboplastin time (APTT) \< 1.5 times the upper limit of normal value
• Laboratory examination, serum creatinine is less than or equal to 1.5 times the upper limit of the normal reference range (if serum creatinine is elevated, 24 hours of urine must be collected, except for 24 hours creatinine clearance \> 50ml/min)
• When there is no liver metastasis, ALT or AST is less than or equal to 2.5 times the upper limit of the normal value reference range, serum total bilirubin is less than or equal to 1.5 times the upper limit of the normal value reference range; for patients with liver metastasis, ALT or AST is less than or equal to 5 times the upper limit of the normal value reference range, serum total bilirubin is less than or equal to 3 times the upper limit of the normal value reference range
• Women of childbearing age must be willing to use adequate contraception during study drug treatment
• Informed consent has been signed
• According to the definition of RECIST 1.1, the investigator determined that the patient had a measurable disease. Tumor lesions located in previous radiotherapy areas are considered measurable if they demonstrate progression.

You may not qualify if:

• Active autoimmune disease requiring systemic treatment occurred in the previous 2 years.
• Diagnosed as immunodeficiency or experimental treatment is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose. After consultation with the sponsor, the use of a physiological dose of corticosteroids may be approved.
• Adverse events caused by anti-tumor monoclonal antibodies (mAbs) within 4 weeks prior to study day 1 or drugs received 4 weeks prior to the study have not recovered.
• Adverse events caused by chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks prior to study day 1, or previously received drugs, have not recovered (ie, ≤1 or reached baseline levels).
• Other malignancies that are progressing or require active treatment are known. Except for basal cell carcinoma, cutaneous squamous cell carcinoma, or cervical carcinoma in situ that have undergone radical treatment.
• Active central nervous system (CNS) metastasis and/or cancerous meningitis are known to exist.
• There are active infections that require systemic treatment.
• It is possible to confuse the test results, the medical history or disease evidence, the treatment or laboratory value abnormalities that hinder the subject's full participation in the study, or the investigator believes that participating in the study is not in the best interests of the subject.
• There are known mental or substance abuse disorders that may have an impact on compliance with test requirements.
• Female subjects who are pregnant or lactating, or who are expected to be pregnant during the planned trial period (from 120 days after screening visits to 120 days after the last dose of study treatment, or 180 days after the last dose of study treatment), or Male subjects whose spouse is pregnant.
• A history of infection with human immunodeficiency virus (HIV) (HIV 1/2 antibody) is known.
• Active hepatitis B or C.
• Live vaccines were vaccinated within 30 days of the start date of the study treatment plan.
• RAS wild type

Sponsors & Collaborators

• Second Affiliated Hospital, School of Medicine, Zhejiang University: lead

Study Sites (1)

Xuefeng Fang

Hangzhou, Zhejiang, 310009, China

Location

Related Publications (1)

• Fang X, Zhong C, Weng S, Hu H, Wang J, Xiao Q, Wang J, Sun L, Xu D, Liao X, Dong C, Zhang S, Li J, Ding K, Yuan Y. Sintilimab plus bevacizumab and CapeOx (BBCAPX) on first-line treatment in patients with RAS mutant, microsatellite stable, metastatic colorectal cancer: study protocol of a randomized, open-label, multicentric study. BMC Cancer. 2023 Jul 18;23(1):676. doi: 10.1186/s12885-023-11139-z.

  PMID: 37464378 DERIVED

MeSH Terms

Conditions

Colorectal Neoplasms

Interventions

sintilimab; Bevacizumab; Oxaliplatin; Capecitabine

Condition Hierarchy (Ancestors)

Intestinal Neoplasms; Gastrointestinal Neoplasms; Digestive System Neoplasms; Neoplasms by Site; Neoplasms; Digestive System Diseases; Gastrointestinal Diseases; Colonic Diseases; Intestinal Diseases; Rectal Diseases

Intervention Hierarchy (Ancestors)

Antibodies, Monoclonal, Humanized; Antibodies, Monoclonal; Antibodies; Immunoglobulins; Immunoproteins; Blood Proteins; Proteins; Amino Acids, Peptides, and Proteins; Serum Globulins; Globulins; Coordination Complexes; Organic Chemicals; Deoxycytidine; Cytidine; Pyrimidine Nucleosides; Pyrimidines; Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Fluorouracil; Uracil; Pyrimidinones; Deoxyribonucleosides; Nucleosides; Nucleic Acids, Nucleotides, and Nucleosides

Study Officials

• Ying Yuan

  2nd Affiliated Hospital, School of Medicine, Zhejiang University, China

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 3
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: November 8, 2021
• First Posted: December 29, 2021
• Study Start: February 8, 2022
• Primary Completion (Estimated): December 30, 2026
• Study Completion (Estimated): December 30, 2026
• Last Updated: February 17, 2026

Record last verified: 2026-02

Locations

CN (1)