First-line Treatment of Gastric or Gastroesophageal Junction Adenocarcinoma With Dual Immunotherapy Combined With Chemotherapy

NCT07400315 | Not Yet Recruiting Phase 2

• 1 other identifier: QL-GasC-QIBA-3035
• Study Type: interventional
• Target: 64
• Locations: 0 countries
• Sites: N/A

Brief Summary

A prospective, single-arm, multicenter, Phase II clinical study of Apatolimab Tovolimab (QL1706) in combination with modified FLOT regimen (TFOX) as first-line treatment for HER2-negative advanced gastric or gastroesophageal junction adenocarcinoma

Conditions

Gastric or Gastroesophageal Junction Adenocarcinoma

Keywords

Gastric or Gastroesophageal Junction Adenocarcinoma; Iparomlimab and Tuvonralimab Injection; TFOX

Outcome Measures

Primary Outcomes (1)

• Median progression-free survival

  1 year

Secondary Outcomes (7)

• Objective response rate ,ORR

  1 year

• Disease Control Rate

  1 year

• Duration Of Response

  1 year

• Overall survival ,OS

  up to 5 years after treatment discontinuation

• 12-month survival rate

  12-month

Study Arms (1)

Experimental

EXPERIMENTAL

Drug: Iparomlimab and Tuvonralimab Injection in combination with TFOX

Interventions

Iparomlimab and Tuvonralimab Injection in combination with TFOX DRUG

Participants enrolled will receive QL1706 (5 mg/kg, Q3W, d1) + docetaxel (50 mg/m², Q3W, d1) + oxaliplatin (100 mg/m², Q3W, d1) + leucovorin (LV) (400 mg/m², Q3W, d1) + 5-fluorouracil (5-FU) (2400 mg/m², Q3W, continuous infusion for 46 hours). The treatment cycle is 21 days, continuing until disease progression, intolerable toxicity, the investigator determines that the participant no longer benefits, the participant withdraws informed consent, QL1706 treatment is completed for 2 years, or other reasons specified in the protocol.Other Name:

Experimental

Eligibility Criteria

• Age: 18 Years - 75 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• \. The participant voluntarily agrees to participate in this study, signs the informed consent form, and strictly adheres to the requirements of the study protocol.
• \. Age ≥18 years and ≤75 years at enrollment, regardless of gender.
• \. No prior systemic treatment for unresectable locally advanced or metastatic G/GEJ adenocarcinoma; previous neoadjuvant and/or adjuvant therapy is acceptable, but all systemic treatments must have been completed at least 12 months prior to the diagnosis of unresectable or metastatic disease.
• \. At least one measurable tumor lesion according to RECIST 1.1 criteria.
• \. ECOG PS of 0 or 1.
• \. Life expectancy ≥3 months.
• \. Fully recovered from any toxicities related to prior treatments prior to enrollment in the study.
• \. BMI \>18.
• \. Adequate function of major organs
• \. Fertile subjects must use appropriate contraception during the study and for 120 days after the end of the study. They must have a negative serum pregnancy test within 7 days prior to enrollment and must not be breastfeeding.

You may not qualify if:

• \. Any unstable systemic disease: including active infection, uncontrolled hypertension, unstable angina, angina that started within the last 3 months, congestive heart failure (New York Heart Association \[NYHA\] ≥Class II), myocardial infarction within 6 months prior to enrollment, severe arrhythmias requiring medication, or hepatic, renal, or metabolic diseases.
• \. Symptomatic brain and/or leptomeningeal metastases.
• \. Known deficiency of dihydropyrimidine dehydrogenase (DPD).
• \. QT/QTc interval \>450 ms for males, \>470 ms for females.
• \. History of other malignancies within 5 years prior to enrollment, with the exception of adequately treated cervical carcinoma in situ, basal cell carcinoma, or squamous cell carcinoma of the skin.
• \. History of organ transplantation or autologous/allogeneic stem cell transplantation.
• \. Currently receiving systemic immunotherapy or hormone therapy other than physiologic replacement therapy.
• \. Other concurrent anti-tumor treatments.
• \. Known hypersensitivity or allergic reaction to any component of the study treatment.
• \. Previous exposure to docetaxel or oxaliplatin (except for adjuvant chemotherapy).
• \. Previous exposure to immune checkpoint inhibitors (e.g., anti-PD-1 antibodies, anti-PD-L1 antibodies, anti-CTLA-4 antibodies), immune checkpoint agonists (e.g., antibodies targeting ICOS, CD40, CD137, GITR, OX40), or any immunotherapy targeting tumor immune mechanisms.
• \. Participants with severe bone marrow failure.
• \. Any disease, metabolic disorder, or physical examination or laboratory findings that suggest contraindications to the study drug or high-risk factors for treatment complications.
• \. Known or self-reported human immunodeficiency virus (HIV) infection.
• \. Participants who are HBV or HCV positive.

Sponsors & Collaborators

• The First Affiliated Hospital with Nanjing Medical University: lead

Central Study Contacts

Yanhong Gu

CONTACT

+025-68307881; YanhongGu@njmu.edu.cn

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 20, 2026
• First Posted: February 10, 2026
• Study Start: March 1, 2026
• Primary Completion (Estimated): December 31, 2028
• Study Completion (Estimated): March 31, 2029
• Last Updated: February 10, 2026

Record last verified: 2026-01

Data Sharing

• IPD Sharing: Will not share