Gastroesophageal Junction (GEJ) Adenocarcinoma
Conditions
Keywords
Neoplasms
Brief summary
The main purpose of this study is to evaluate safety, tolerability and the efficacy of Q-1802 plus SOC compared with SOC. .Pharmacokinetics (PK) ,Pharmacodynamics (PD) of Q-1802 and the immunogenicity profile of Q-1802 will be evaluated as well.
Detailed description
This study is a multicenter, open label, phase Ⅰb/Ⅱ clinical study conducted in unresectable patients with advanced or recurrent metastatic Claudin18.2 positive (medium and high expression) and HER-2 negative primary gastric adenocarcinoma or gastric esophageal junction adenocarcinoma. The Phase Ib dose escalation study included two dose groups each combined with the XELOX standard treatment regimen. Perform dose escalation to obtain MTD and/or RP2D doses for combined administration. The Phase II study adopted an open label parallel randomized controlled design. Further observe the efficacy and safety of Q-1802 combined with XELOX regimen in treating patients with moderate to high expression of Claudin 18.2, and compare and analyze the efficacy and safety of Q-1802 combined with XELOX regimen and XELOX regimen alone.
Interventions
DRUGQ-1802 Injection,Oxaliplatin Injection,Capecitabine
Q-1802：A dose Q-1802 will be administered intravenously Q2W. XELOX（oxaliplatin，capecitabin）: 21 days as a cycle Oxaliplatin will be administered 130mg/m2 as a 2-hour IV infusion,administer once on the first day, with 21 days as a cycle Capecitabine will be administered 1000mg/m2 orally twice daily (D1-D14),21ds is one cycle.
Sponsors
QureBio Ltd.
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
Phase Ib: Dose escalation;Phase II:Arm A：Combined administration group Q-1802 plus XELOX,Arm B Standard treatment group: XELOX alone
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
： Patients with at least one measurable lesion per RECIST (v1.1); Patients with medium or high expression of Claudin18.2 in tumor tissue samples tested by immunohistochemistry in central laboratory were included; Patients with untreated, unresectable advanced or metastatic gastric adenocarcinoma or gastroesophageal junction adenocarcinoma with negative HER-2 immunohistochemistry or FISH test (HER-2 immunohistochemistry 0/1+ confirmed by a qualified local or central laboratory, or 2+ confirmed negative by FISH test) were included; Eastern Cooperative Oncology Group (ECOG) performance status score 0 or 1 at screening and no deterioration occurs within two weeks before enrollment; Life expectancy period ≥ 12 weeks; Patients who have sufficient baseline organ function.
Exclusion criteria
Receive anti-tumor treatment within 4 weeks before the first administration or within 5 half-lives of the treatment drug, whichever is shorter; Patients who have previously used Claudin 18.2 products for treatment; With uncontrolled diseases; Who are allergic to the study drug or any of its components; Patients with a history of other primary malignant tumors at the time of screening, except for cured skin Basal-cell carcinoma or Cutaneous squamous-cell carcinoma or cervical Carcinoma in situ.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of participants with treatment-related adverse events(TRAE) | From the first dose of study drug administration up to 30 days after the last study medication administration, up to 12months | TRAE is defined as the AEs that the casual relationship of the AE is ralated to Q-1802 |
| Objective response rate (ORR) | From the first dose of study drug administration up to 6 months after the last pts in,up to19 months | ORR is defined as proportion of participants with complete response, partial response (CR+PR). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Progression-free survival (PFS) | From the first dose of study drug administration up to the last pts who disease progression or death which occurs first,up to 21months | PFS is defined as the interval of time between the date of first treatment to the earliest date of disease progression or death which occurs first. |
Countries
China
Contacts
Primary ContactLI WEI, MD
Outcome results
None listed