Overview
XELOX Combined With Cadonilimab Versus XELOX as Neoadjuvant Treatment for Locally Advanced, pMMR Rectal Cancer
Status:
Recruiting
Recruiting
Trial end date:
2026-03-01
2026-03-01
Target enrollment:
0
0
Participant gender:
All
All
Summary
This is a two-arm, open label, randomized phase II clinical study. The aim is to evaluate the safety and efficacy of Cadonilimab (a PD-1/CTLA-4 bispecific antibody) combined with XELOX regimen in pMMR locally advanced rectal cancer during the perioperative period. Eligible patients will receive either Cadonilimab plus XELOX or XELOX alone for 4 cycles before and 4 cycles after surgery. The primary endpoint is the pathological complete response rate.Phase:
Phase 2Accepts Healthy Volunteers?
NoDetails
Lead Sponsor:
Cancer Institute and Hospital, Chinese Academy of Medical SciencesTreatments:
CapecitabineOxaliplatin
Criteria
Inclusion Criteria:- Histologically or pathologically confirmed rectal adenocarcinoma located within 5 to
15cm from the anus with a stage of T3-4a or N+ according to the CT or endoscope
- Mesorectal fascia uninvolved
- Sign the informed consent form
- 18 years and older
- Mismatch repair proficient determined by immunohistochemistry
- No prior treatment
- Performance status: ECOG 0-1
- Good organ function:
Blood routine: hemoglobin ≥90g/L, neutrophil ≥1.5×10^9/L, platelet ≥100×10^9/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
- Unable to swallow or under other circumstance which would drug absorption
- 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