Clinical Application of PD-1 Inhibitor in Colorectal Cancer for Improving Survival

A Retrospective Study of the Effect of PD-1 Inhibitors in Improving Clinical Outcome for Colorectal Cancer.

This trial is a single-center retrospective study. Eligible patients receiving PD-1 inhibitor treatment will enrolled.

Study Overview

• Status: Completed
• Conditions: Rectal Cancer; Colon Cancer
• Intervention / Treatment: Drug: PD1 Inhibitor

Detailed Description

In patients with colorectal cancer (CRC), curative surgery combined with chemotherapy ( FOLFOX or CAPOX regimens) has become the standard treatment. However, 20 to 30% of these patients will develop distant metastasis, which ultimately results in death. Oxaliplatin- and fluoropyrimidine-based doublet chemotherapy does not adequately meet the clinical need for tumor shrinkage and downstaging. There is an urgent need to explore drugs with different mechanisms of action in combination with chemotherapy to improve efficacy. Relatively few trials of preoperative therapy have been reported, In recent years, the emergence of immune checkpoint inhibitors has revolutionized cancer treatment. Given the limitations of current treatment strategies in achieving optimal clinical outcomes, this retrospective study aims to research the disease-free survival rates and overall survival (OS) in CRC patients using PD-1 inhibitors.

• Study Type: Observational
• Enrollment (Actual): 458

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

CRC patients receiving PD-1 inhibitors

Description

:

Inclusion Criteria:

Willing and able to provide written informed consent. Histological or cytological documentation of adenocarcinoma of the colorectal. Eastern Cooperative Oncology Group's (ECOG) performance status of 0 or 1. CT or MRI scans (done within 30 days of registration) of the chest, abdomen, and pelvis all without clear evidence of distant metastatic (M1) disease.

No clinically significant obstruction, perforation, or bleeding related to the primary tumor.

No previous systemic anticancer therapy for colon cancer disease. Adequate bone marrow, hepatic, and renal function as assessed by the following laboratory requirements conducted within 7 days of starting the study treatment

Exclusion Criteria:

Previous or concurrent cancer that is distinct in primary site or histology from colon cancer within 5 years before randomization.

Significant cardiovascular disease including unstable angina or myocardial infarction within 6 months before initiating study treatment.

Heart failure grade III/IV (NYHA classification). Unresolved toxicity higher than CTCAE v.5.0 Grade 1 attributed to any prior therapy/procedure.

Subjects with known allergy to the study drugs or any of its excipients. Current or recent (within 4 weeks before starting study treatment) treatment of another investigational drug or participation in another investigational study.

Breast-feeding or pregnant women Lack of effective contraception.

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
DFS	disease-free survival	3years

Collaborators and Investigators

• Sponsor: Yanhong Deng

Study record dates

Study Major Dates

• Study Start (Actual): March 20, 2013
• Primary Completion (Actual): September 20, 2022
• Study Completion (Actual): March 23, 2025

Study Registration Dates

• First Submitted: March 23, 2025
• First Submitted That Met QC Criteria: March 23, 2025
• First Posted (Actual): March 28, 2025

Study Record Updates

• Last Update Posted (Actual): March 28, 2025
• Last Update Submitted That Met QC Criteria: March 23, 2025
• Last Verified: March 1, 2023

More Information

Terms related to this study

• Keywords: pd1
• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Intestinal Diseases; Gastrointestinal Neoplasms; Digestive System Neoplasms; Digestive System Diseases; Gastrointestinal Diseases; Intestinal Neoplasms; Rectal Diseases; Colonic Diseases; Colorectal Neoplasms; Antineoplastic Agents, Immunological; Antineoplastic Agents; Molecular Mechanisms of Pharmacological Action; Immune Checkpoint Inhibitors
• Other Study ID Numbers: GIHSYSU-RS-01

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No