Overview
Study of Tislelizumab Combined With DisitamabVedotin and Pyrotinib Maleate in HER2-positive or Mutated Advanced Colorectal Cancer Who Failed Standard Therapy
Status:
Not yet recruiting
Not yet recruiting
Trial end date:
2026-04-20
2026-04-20
Target enrollment:
0
0
Participant gender:
All
All
Summary
This study will explore the efficacy and safety of tislelizumab (PD1 inhibitor) combined with DisitamabVedotin (ADC) and pyrotinib maleate (TKI) in the treatment of HER2-positive or mutated advanced colorectal cancer who have failed standard therapy .Phase:
Phase 2Accepts Healthy Volunteers?
NoDetails
Lead Sponsor:
The First Affiliated Hospital of Zhengzhou UniversityCollaborators:
BeiGene
Jiangsu Hengrui Pharmaceutical Co., Ltd.
RemeGen Co., Ltd.Treatments:
Maleic acid
Criteria
Inclusion Criteria:- Colorectal cancer patients aged ≥18 years and ≤75 years old;
- ECOG score 0~1 points;
- Pathologically confirmed HER2 amplification-positive or mutated patients with advanced
colorectal cancer who have failed or are intolerant of first-line therapy;
- Note: HER2 amplification positive means that in the pathological detection/recheck of
the primary tumor or metastases conducted by the pathology department of our hospital,
at least one tumor cell immunohistochemical staining intensity is 3+ or
immunohistochemical staining intensity is 2+ and has been Fluorescence in situ
hybridization [FISH] confirmed positive or NGS confirmed advanced colorectal cancer
patients with HER2 gene amplification or mutation.
- According to RECIST1.1 criteria, there is at least one measurable target lesion, and
tumor imaging evaluation is performed within 28 days before the first dose;
- Expected survival time ≥ 12 weeks;
- Major organ function is normal, that is, the following criteria are met:
1. The blood routine examination standards must meet: ANC ≥1.5×109/L; PLT ≥90×109/L;
Hb ≥90g/L (no blood transfusion within 14 days);
2. Biochemical examinations should meet the following criteria: ALB≥30g/L; (no ALB
transfusion within 14 days); TBIL≤Upper limit of normal (ULN); ALT and AST≤2.5
times upper limit of normal (ULN), if there is liver metastasis , then ALT and
AST≤5ULN; alkaline phosphatase≤2.5 times the upper limit of normal (ULN); BUN and
Cr≤1.5×ULN and creatinine clearance rate≥50 mL/min (CockcroftGault formula);
3. Cardiac ultrasound and echocardiography: left ventricular ejection fraction
(LVEF≥50%);(4) QT interval (QTcF) corrected by Fridericia method of 18-lead ECG
in females <470 ms;
- For premenopausal or surgically sterilized female patients: consent to abstinence or
use of effective contraception during treatment and for at least 7 months after the
last dose of study treatment;
- Voluntarily join the study and sign the informed consent
Exclusion Criteria:
- Patients who have not received first-line standard therapy;
- Previous antitumor therapy or radiation therapy for any other malignant tumor;
- concurrently receiving anti-tumor therapy in other clinical trials, including
endocrine therapy, bisphosphonate therapy, and immunotherapy;
- Has undergone major surgical procedures not related to colorectal cancer within 4
weeks prior to enrollment, or the patient has not fully recovered from such surgical
procedures;
- Serious heart disease or discomfort, including but not limited to the following:
- Diagnosed history of heart failure or systolic dysfunction (LVEF < 50%)
- High-risk uncontrolled arrhythmias, such as atrial tachycardia, resting heart
rate >100 bpm, significant ventricular arrhythmia (eg, ventricular tachycardia),
or higher-grade AV block (ie, Mobitz II second-degree AV block or third-degree AV
block)
- Angina pectoris requiring antianginal drug treatment
- Clinically significant heart valve disease
- ECG showing transmural myocardial infarction
- Poorly controlled hypertension (systolic blood pressure > 180 mmHg and/or
diastolic blood pressure > 100 mmHg)
- Inability to swallow, bowel obstruction, or other factors that interfere with drug
taking and absorption;
- Known history of allergy to the drug components of this regimen; history of
immunodeficiency, including HIV positive test, or other acquired or congenital
immunodeficiency diseases, or a history of organ transplantation;
- Pregnant or lactating female patients, female patients of childbearing potential with
a positive baseline pregnancy test, or patients of childbearing age who are unwilling
to take effective contraceptive measures throughout the trial period and within 7
months after the last study drug;
- have serious comorbidities or other comorbidities that would interfere with planned
treatment, orAny other conditions for which the patient was deemed unsuitable for
participation in this study by the investigator.