Real-World Study of Chidamide Combined With PD-(L)1 Inhibitors and Anti-Angiogenic Therapy for Advanced MSS-Type Colorectal Cancer

Real-World Study of Chidamide Combined With PD-(L)1 Inhibitors and Anti-Angiogenic Therapy for Advanced MSS-Type Colorectal Cancer

This is an observational , multicenter, real-world study aimed at evaluating the efficacy and safety of the combination of immune checkpoint inhibitors, chidamide and antiangiogenic agents in Microsatellite Stable advanced colorectal cancer patients.

Inclusion Criteria:

• Age ≥18 years, male or female.

Histologically confirmed advanced colorectal cancer with microsatellite stable (MSS)/proficient mismatch repair (pMMR) status confirmed by immunohistochemistry (IHC) or molecular testing.

No restriction on prior immunotherapy or combined anti-angiogenic agents (e.g., bevacizumab or small-molecule TKIs).

ECOG performance status of 0-2.

At least one post-treatment efficacy evaluation.

Life expectancy ≥3 months.

Chidamide treatment duration >3 weeks

Exclusion Criteria:

- 1. Malignancies in other organs or systems, except for cured basal cell/squamous cell skin cancer or cervical carcinoma.

2. Severe comorbidities that may interfere with efficacy or safety analysis. 3. Conditions deemed unsuitable for study inclusion by the investigator.