Clinical trial
Trifluridine/Tipiracil Combined With Cetuximab in the Treatment of Third-line and Above RAS/BRAF Wild-type Metastatic Colorectal Cancer: A Single-center, Prospective Phase Ib/II Study
Name
IRB-2023-1072
Description
This study is a single-center, prospective, single-arm exploratory study aimed at evaluating the efficacy and safety of trifluridine/tipiracil in combination with cetuximab in the treatment of third-line and above RAS/BRAF wild-type metastatic colorectal cancer.
Trial arms
Trial start
2024-04-01
Estimated PCD
2025-03-01
Trial end
2025-12-01
Status
Recruiting
Phase
Early phase I
Treatment
Cetuximab
Cetuximab will be administered at a fixed dose of 500 mg/m2 once every 2 weeks;
Arms:
Cetuximab Combined With Trifluridine/Tipiracil
Other names:
Erbitux
Trifluridine/Tipiracil
Phase I:
1. 6 patients (male and female) will be enrolled to evaluate safety. Patients will receive Trifluridine/Tipiracil at a dose of 35mg/m2 (maximum single dose of 80 mg). Patients will be followed up for Dose-Limiting Toxicities (DLTs) (2 Cycles, Day 1-Day 28). If ≤2 patients experience DLTs (2 Cycles, Day 1-Day 28), the study will proceed to Phase II with a dose of 35mg/m2. If ≥3 patients experience DLTs (2 Cycles, Day 1-Day 28), the study will proceed to Phase II with a dose of 30mg/m2.
2. Based on the results of the 35mg/m2 dose group, 6 patients (male and female) will be enrolled in the 30mg/m2 dose group to evaluate safety. Patients will be followed up for DLTs (2 Cycles, Day 1-Day 28). If ≤2 patients experience DLTs (1 Cycle, Day 1-Day 28), the study will proceed with a dose of 30mg/m2 in Phase II.
Phase II:
Trifluridine/Tipiracil: po, twice daily from Day 1-5, every two weeks, based on the recommended dose from Phase I;
Arms:
Cetuximab Combined With Trifluridine/Tipiracil
Other names:
TAS-102, FTP/TPI
Size
26
Primary endpoint
Progression-free survival (PFS)
Approximately 12 months
Eligibility criteria
Inclusion Criteria:
1. Patient able and willing to provide written informed consent and to comply with the study protocol and follow-up inspection.
2. Histologically or cytologically confirmed metastatic adenocarcinoma of the colon; excluding appendiceal and anal canal cancers.
3. Previously received at least second-line treatment, including two standard treatment regimens (such as fluoropyrimidine, capecitabine, irinotecan, oxaliplatin with or without anti-VEGF or anti-EGFR agents), if previously received first-line anti-EGFR therapy, achieving at least a partial response (PR) or above, with a discontinuation interval of at least one year.
4. Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
5. Measurable disease by computed tomography (CT) or magnetic resonance imaging (MRI) (based on RECIST 1.1 criteria, with the longest diameter of tumor lesions on CT/MRI scan ≥10mm, and the shortest diameter of lymph node lesions on CT/MRI scan ≥15mm).
6. Wild-type RAS/BRAF gene detected.
7. Able to take oral medication.
8. Normal organ function, meeting the following criteria within 14 days before treatment initiation:
* Neutrophil count ≥1.5×10\^9/L;
* Platelet count ≥75×10\^9/L;
* Hemoglobin ≥9.0g/dL;
* Aspartate aminotransferase (AST) ≤2.5×upper limit of normal (ULN) (or ≤5×ULN if liver metastases);
* Alanine aminotransferase (ALT) ≤2.5×ULN (or ≤5×ULN if liver metastases);
* Total bilirubin ≤1.5×ULN;
* Creatinine clearance (calculated by Cockcroft and Gault formula) \>60mL/min or serum creatinine ≤1.5×ULN;
9. Expected survival time \>3 months (90 days).
10. Women of childbearing potential must have used reliable contraception for 7 days prior to enrollment, have had a negative pregnancy test, and agree to use appropriate contraception methods during the trial and for 6 months after the last dose of investigational drug. Men must agree to use appropriate contraception methods or have undergone surgical sterilization during the trial and for 6 months after the last dose of investigational drug.
Exclusion Criteria:
1. Prior treatment with Trifluridine/Tipiracil;
2. Patients with known dMMR or MSI-H advanced colorectal cancer who have not previously received anti-PD-1 or PD-L1 inhibitors;
3. Participation in another drug clinical trial or receipt of systemic chemotherapy, radiotherapy, or biologic therapy within the past 4 weeks;
4. Known or suspected brain metastases;
5. Synchronous or metachronous cancer with a disease-free survival of ≥5 years (except for colorectal cancer) excluding cured or curatively treated mucosal cancers (esophageal cancer, gastric cancer, cervical cancer, non-melanoma skin cancer, bladder cancer, etc.);
6. Factors significantly affecting oral drug absorption, such as dysphagia, chronic diarrhea, and gastrointestinal obstruction; uncontrolled Crohn's disease or ulcerative colitis;
7. Symptomatic malignant effusion requiring symptomatic treatment (including pleural effusion, ascites, pericardial effusion);
8. Pregnant or lactating women; patients with reproductive potential unwilling or unable to use effective contraceptive measures;
9. Known allergy to the investigational drug, drug class, or its components;
10. Requirement for systemic corticosteroid therapy (excluding local steroids and cetuximab pre-treatment);
11. History of interstitial lung disease (interstitial pneumonia, pulmonary fibrosis, etc.) or radiographic evidence of interstitial lung disease;
12. Active local or systemic infections requiring treatment;
13. New York Heart Association (NYHA) functional classification ≥II or severe heart disease;
14. Known human immunodeficiency virus (HIV) infection or acquired immunodeficiency syndrome (AIDS) or history of active hepatitis B or hepatitis C;
15. Unresolved toxicity (CTCAE\>Grade 1) or incomplete recovery from previous cancer surgery.
16. Patients deemed unsuitable for the study by the investigator.
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE1', 'PHASE2'], 'designInfo': {'allocation': 'NA', 'interventionModel': 'SINGLE_GROUP', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'NONE'}}, 'enrollmentInfo': {'count': 26, 'type': 'ESTIMATED'}}
Updated at
2024-04-23
1 organization
2 products
1 indication
Organization
Wangxia LvProduct
CetuximabIndication
Colorectal Cancer MetastaticProduct
Trifluridine/Tipiracil