Efficacy and Safety of Serplulimab Combined With Chemotherapy as Neoadjuvant Treatment for Locally Advanced Gastric Cancer or Adenocarcinoma of Esophagogastric Junction

Summary

This is a multicenter, double-blind, randomized, phase 2 trial to investigate the efficacy and safety of serlulimab combined with nab-paclitaxel plus SOX versus nab-paclitaxel plus SOX alone as neoadjuvant treatment for locally advanced GC or AEG.

The goal of this clinical trial is to learn if serlulimab combined with nab-paclitaxel plus SOX as neoadjuvant treatment for locally advanced AEG/GC. It will also learn about the safety of serlulimab combined with nab-paclitaxel plus SOX. The main questions it aims to answer are:

Does serlulimab increase the pCR of participants with locally advanced AEG/GC ? What medical problems do participants have when taking serlulimab? Researchers will compare to a placebo (a look-alike substance that contains no drug) to see if serlulimab combined with nab-paclitaxel plus SOX as neoadjuvant treatment for locally advanced AEG/GC.

Participants will:

Eligible patients were randomly assigned to receive serlulimab (4.5 mg intravenously on day 1) combined with chemotherapy (nap-paclitaxel 260 mg/m2 intravenously on days 1, OXA 130mg/ /m2, intravenously on days 1, and S-1 40 to 60 mg orally twice daily depending on BSA on days 1 to 14) or chemotherapy alone every 3 weeks for 3 preoperative cycles followed by 3 postoperative cycles. All patients will be followed for survival.

Conditions

• Stomach Neoplasms
• Immune Checkpoint Inhibitors

Interventions

DRUG

Serplulimab Combined With Chemotherapy

Serplulimab (Dosage form: Lyophilized powder; Unit dose strength: 4.5 mg; Route of administration: IV infusion; Storage requirements: 2-8℃. Protect from light and freezing.) Nap-paclitaxel (Dosage form: Lyophilized powder; Unit dose strength: 100 mg; Route of administration: IV infusion; Storage requirements: \<25℃. Protect from light.) S-1 (Dosage form: Capsule; Unit dose strength: 20 mg; Route of administration: Oral; Storage requirements: 20-30℃. Protect from light.) Oxaliplatin (Dosage form: Lyophilized powder; Unit dose strength: 50 mg; Route of administration: IV infusion; Storage requirements: \<25℃. Protect from light.) Surgery: All surgical procedures are performed according to the guidelines of the Japanese Research Society for the Study of Gastric Cancer.

DRUG

Placebo combined with Chemotherapy

Placebo (Dosage form: Lyophilized powder; Unit dose strength: 4.5 mg; Route of administration: IV infusion; Storage requirements: 2-8℃. Protect from light and freezing.) Nap-paclitaxel (Dosage form: Lyophilized powder; Unit dose strength: 100 mg; Route of administration: IV infusion; Storage requirements: \<25℃. Protect from light.) S-1 (Dosage form: Capsule; Unit dose strength: 20 mg; Route of administration: Oral; Storage requirements: 20-30℃. Protect from light.) Oxaliplatin (Dosage form: Lyophilized powder; Unit dose strength: 50 mg; Route of administration: IV infusion; Storage requirements: \<25℃. Protect from light.) Surgery: All surgical procedures are performed according to the guidelines of the Japanese Research Society for the Study of Gastric Cancer.

Sponsors & Collaborators

• Tang-Du Hospital

  collaborator OTHER

• Hebei Medical University Fourth Hospital

  collaborator OTHER

• Tianjin Medical University Cancer Institute and Hospital

  collaborator OTHER

• Xijing Hospital

  lead OTHER

Principal Investigators

• Liu Hong, Ph.D · Xijing Hospital of Digestive Diseases, Xijing Hospital, Air force Medical University, Changlexi ST 15, Shaanxi Province, 710032, China

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

TRIPLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

75 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2024-11-15

Primary Completion

2026-05-31

Completion

2026-09-30

Countries

• China

Study Locations