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Immunotherapy Combined With Anti-angiogenic Therapy and Chemotherapy for Potentially Resectable MSI-H, dMMR Locally Advanced Gastric or Gastroesophageal Junction Adenocarcinoma

A Prospective, Multicenter, Open-label Phase II Single-arm Clinical Trial Protocol on the Efficacy and Safety of Lparomlimab and Tuvonralimab in Combination With Lenvatinib and SOX Chemotherapy in Potentially Resectable MSI-H, dMMR Locally Advanced Gastric or Gastroesophageal Junction Adenocarcinoma Patients

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07151209
Enrollment
20
Registered
2025-09-03
Start date
2025-09-30
Completion date
2028-12-31
Last updated
2025-09-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastric or Gastroesophageal Junction Adenocarcinoma

Keywords

Iparomlimab and Tuvonralimab, lenvatinib, SOX

Brief summary

Efficacy and safety of Iparomlimab and Tuvonralimab in combination with lenvatinib and SOX chemotherapy in potentially resectable MSI-H, dMMR locally advanced gastric or gastroesophageal junction adenocarcinoma patients: A prospective, multicenter, open-label Phase II single-arm clinical trial

Interventions

DRUGIparomlimab and Tuvonralimab combined with lenvatinib and SOX

Iparomlimab and Tuvonralimab:5 mg/kg Q3W lenvatinib:8 mg/day orally SOX:oxaliplatin (130 mg/m² Q3W intravenous infusion), and S-1 (40 mg/m² BID orally on days 1-14)

Sponsors

The First Affiliated Hospital with Nanjing Medical University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Able to understand and agree to comply with study requirements and the assessment schedule, and voluntarily sign the written informed consent form (ICF) before any trial-related procedures are implemented; * Age greater than 18 years, regardless of gender. Histologically confirmed unresectable locally advanced or metastatic G/GEJ adenocarcinoma. * 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 6 months prior to the diagnosis of unresectable or metastatic disease. * PD-L1 combined positive score (CPS) less than 1 as determined by tissue testing. * At least one measurable lesion according to RECIST 1.1 criteria. * ECOG performance status 0-1. * Life expectancy \>3 months. * Adequate organ and marrow function:

Exclusion criteria

* 1\. Known HER2-positive expression (immunohistochemistry \[IHC\] 3+ or 2+ with a fluorescence in situ hybridization HER2:CEP17 ratio ≥2). * Presence of other malignancies within 5 years prior to treatment, with the exception of adequately treated cervical carcinoma in situ, basal cell or squamous cell carcinoma of the skin, locally treated prostate cancer, and ductal carcinoma in situ (hormone therapy for non-metastatic prostate cancer or breast cancer is permitted). * Known central nervous system metastases and/or carcinomatous meningitis. * Patients with severe cardiac, pulmonary, hepatic, or renal dysfunction. * Hypertension that cannot be controlled with antihypertensive medications (systolic blood pressure \>140 mmHg, diastolic blood pressure \>90 mmHg). * History of bleeding within 4 weeks prior to screening, with any bleeding event graded as ≥3 according to CTCAE 5.0. * Thrombotic events (arterial or venous) within 6 months prior to screening, such as cerebrovascular accident, deep vein thrombosis (excluding previously thrombosed veins deemed healed by the investigator), and pulmonary embolism. * History of immunodeficiency, or other acquired or congenital immunodeficiency diseases, or history of organ transplantation. * Patients who have previously received anti-PD-1, anti-PD-L1, or anti-CTLA-4 antibodies at any time.

Design outcomes

Primary

MeasureTime frame
Pathological complete response (pCR) rateUp to approximately 2 years

Secondary

MeasureTime frame
R0 resection rateUp to approximately 2 years
Objective response rate (ORR)Up to approximately 2 years
Event-free survival (EFS)Up to approximately 2 years
Major pathological response (MPR) rateUp to approximately 2 years
Overall survival (OS)Up to approximately 5 years
12-month, 24-month, and 36-month overall survival ratesUp to approximately 3 years
12-month, 24-month, and 36-month event-free survival rates Disease-free survival (DFS)Up to approximately 3 years

Contacts

Primary Contactlin jun Wang
+8618795460898

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026