Comparing the Efficacy and Safety of Chemotherapy Combined With or Without Immunotherapy as Postoperative Adjuvant Regimens in Patients With Resectable Gastric Cancer/Adenocarcinoma of the Esophagogastric Junction After Radical Surgery

NCT ID: NCT07149181

Last Updated: 2025-08-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE4

Total Enrollment

1000 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-31

Study Completion Date

2028-09-30

Brief Summary

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This study is to evaluate the efficacy and safety of chemotherapy combined with or without immunotherapy as postoperative adjuvant regimens in patients with resectable gastric cancer/adenocarcinoma of the esophagogastric junction after radical surgery

Detailed Description

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Conditions

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Gastric / Gastroesophageal Junction Adenocarcinoma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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SOX or XELOX with immunotherapy

Group Type EXPERIMENTAL

SOX plus PD-1 inhibitor

Intervention Type DRUG

SOX or XELOX plus PD-1 inhibitor

SOX or XELOX

Group Type ACTIVE_COMPARATOR

SOX Chemotherapy

Intervention Type DRUG

SOX or XELOX

Interventions

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SOX plus PD-1 inhibitor

SOX or XELOX plus PD-1 inhibitor

Intervention Type DRUG

SOX Chemotherapy

SOX or XELOX

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Age ≥ 18 years old, gender not restricted;
2. Subjects diagnosed with gastric cancer (GC) or gastroesophageal junction cancer (GEJC) through imaging and other examinations, and with histopathological diagnosis of adenocarcinoma;
3. HER2 overexpression or amplification results are negative;
4. After radical surgery treatment, the investigator assesses that further adjuvant treatment is necessary, and the adjuvant treatment plan must be the one specified in this protocol.

Exclusion Criteria

1. Gastric cancer that is known to be squamous cell carcinoma, undifferentiated carcinoma, or of other tissue types, or gastric cancer that is adenocarcinoma mixed with other tissue types;
2. Within 3 months before adjuvant therapy, there was a significant clinically significant bleeding symptom or a clear bleeding tendency;
3. Within 6 months before adjuvant therapy, had suffered from intestinal obstruction and/or had clinical signs or symptoms of digestive tract obstruction, including incomplete obstruction related to the original disease or requiring routine parenteral hydration, parenteral nutrition, or tube feeding;
4. Within 5 years before starting adjuvant therapy, was diagnosed with a malignant tumor (excluding malignant tumors with low metastasis and mortality risks, such as: skin basal cell carcinoma or cervical carcinoma in situ that has been adequately treated);
5. Within 30 days before starting adjuvant therapy, had participated in other clinical studies and used study drugs containing active ingredients;
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Liaoning Cancer Hospital & Institute

OTHER

Sponsor Role lead

Responsible Party

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Zheng Guoliang

Vice Offices Director

Responsibility Role PRINCIPAL_INVESTIGATOR

Other Identifiers

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KY20250315

Identifier Type: OTHER

Identifier Source: secondary_id

NeoGC-03

Identifier Type: -

Identifier Source: org_study_id