NCT05815290RecruitingPhase 2
A Phase II Trial of Cadonilimab in Locally Advanced Stage II/III MSI-H/dMMR Colorectal Cancer
Cancer Institute and Hospital, Chinese Academy of Medical Sciences1 site in 1 country50 target enrollmentStarted: March 29, 2023Last updated:
Conditions
Interventions
Drugs
Trial Snapshot
- Phase
- Phase 2
- Status
- Recruiting
- Enrollment
- 50
- Locations
- 1
- Primary Endpoint
- complete response rate
Study Overview
Brief Summary
This is a two-arm phase II clinical study to evaluate the efficacy and safety of Cadonilimab (a PD-1/CTLA-4 bispecific antibody) in MSI-H/dMMR locally advanced colorectal cancer as the regimen of neoadjuvant treatment. Eligible patients will receive Cadonilimab monotherapy for eight cycles before surgery and part of patients may exempt from surgery.
Study Design
- Study Type
- Interventional
- Allocation
- Non Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Arm 1: Histologically or pathologically confirmed colon adenocarcinoma with a stage of T3-4 or N+ according to the CT or endoscope; Arm 2: Histologically or pathologically confirmed rectal adenocarcinoma located within 12cm from the anus with a stage of T2-4 or N+ according to the CT or endoscope
- •Sign the informed consent form
- •18 years and older
- •Mismatch repair deficient determined by immunohistochemistry or microsatellite instable by PCR
- •No prior treatment
- •Performance status: ECOG 0-1
- •Good organ function:
- •Blood routine: hemoglobin ≥90g/L, neutrophil ≥1.5×10^9/L, platelet ≥80×10^9/L; Renal function: creatinine≤1.5×upper limit of normal (UNL) or creatinine clearance ≥50ml/min; Liver function: total bilirubin (TBIL)≤1.5×upper limit of normal (UNL); ALT≤2.5×UNL, AST≤2.5×UNL; Ejection fraction at least 50% (or lower limit of normal) by echocardiogram
Exclusion Criteria
- •Other pathological category, such as squamous cancer
- •Distant metastasis or peritoneum implantation
- •Have received chemotherapy or radiotherapy in the past
- •Known to have allergic reactions to any ingredients or excipients of experimental drugs
- •Other active malignant tumors, excluding those who have been disease free for more than 5 years or in situ cancer considered to have been cured by adequate treatment
- •Have received colorectal cancer surgery
- •Diabetes was not controlled, defined as HbA1c > 7.5% after anti-diabetic drugs or hypertension was not controlled, defined as systolic / diastolic blood pressure > 140 / 90 mmHg after antihypertensive drug
- •Myocardial infarction, severe/unstable angina, New York Heart Association (NYHA) class III or IV congestive heart failure in the past 12 months
- •Known to be infected with human immunodeficiency virus (HIV), have acquired immunodeficiency syndrome (AIDS) related diseases, have active hepatitis B or hepatitis C
- •Pregnant or nursing
- •May increase the risk associated with participation in the study or administration of the study drug or mental illness that may interfere with the interpretation of research results
- •There are other serious diseases that the researchers believe patients cannot be included in the study
Arms & Interventions
dMMR/MSI-H colon cancer
Experimental
Intervention: Cadonilimab (Drug)
dMMR/MSI-H rectal cancer
Experimental
Intervention: Cadonilimab (Drug)
Outcomes
Primary Outcomes
complete response rate
Time Frame: 3 years
For colon cancer arm, complete response rate include the rate of pathological complete response and clinical complete response; for rectal cancer arm, complete response rate means the rate of clinical complete response
Secondary Outcomes
- pCR rate(2 year)
- DFS(From date of initiation of treatment to date of progression or death due to any cause, whichever occurs first, assessed up to 3 years)
- OS(From date of initiation of treatment to date of death due to any cause, assessed up to 3 years)
Investigators
AIPING ZHOU
Vice director of Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital
Cancer Institute and Hospital, Chinese Academy of Medical Sciences
Study Sites (1)
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