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A Study of AK104 (SC) in Combination With Oxaliplatin and Capecitabine (XELOX) Versus AK104 (IV) in Combination With XELOX in Participants With Unresectable Locally Advanced or Metastatic Gastric Adenocarcinoma or Gastroesophageal Junction Adenocarcinoma

A Randomized, Open-Label, Multicenter, Phase I/III Clinical Study to Evaluate the Pharmacokinetics, Efficacy and Safety of AK104 (SC) in Combination With Oxaliplatin and Capecitabine (XELOX) Regimen Versus AK104 (IV) in Combination With XELOX Regimen as First-Line Treatment for Unresectable Locally Advanced or Metastatic Gastric Adenocarcinoma or Gastroesophageal Junction Adenocarcinoma

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07449780
Enrollment
422
Registered
2026-03-04
Start date
2026-03-31
Completion date
2028-02-15
Last updated
2026-03-04

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

Conditions

Gastric / Gastroesophageal Junction Adenocarcinoma

Brief summary

A Study of AK104 (SC) in Combination With Oxaliplatin and Capecitabine (XELOX) Versus AK104 (IV) in Combination With XELOX in Participants With Unresectable Locally Advanced or Metastatic Gastric Adenocarcinoma or Gastroesophageal Junction Adenocarcinoma

Interventions

DRUGAK104(SC)

AK104:subcutaneous injection

DRUGAK104(IV)

AK104:intravenous

DRUGCapecitabine

oral

intravenous

Sponsors

Akeso
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Histologically confirmed adenocarcinoma of the stomach or gastroesophageal junction (GEJ). 2. Unresectable locally advanced or metastatic adenocarcinoma of the stomach or gastroesophageal junction (GEJ). 3. Participants have not received prior systemic therapy for locally advanced or metastatic gastric or gastroesophageal junction adenocarcinoma. 4. Adequate organ and bone marrow function. 5. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 at enrollment. 6. Measurable disease by RECIST 1.1.

Exclusion criteria

1. Receipt of systemic non-specific immunomodulatory therapy (e.g., interleukins, interferons, thymic peptides, etc.) within 2 weeks prior to the first dose.Receipt of Chinese herbal medicines or Chinese patent medicines with anti-tumor indications within 2 weeks prior to the first dose. 2. Deep venous thrombosis within 3 months before first treatment. 3. Uncontrolled arterial hypertension. 4. Bleeding events within the last 1 months. 5. Prior treatment with immune checkpoint inhibitors. 6. Known history of allogeneic organ transplantation and allogeneic hematopoietic stem cell transplantation.

Design outcomes

Primary

MeasureTime frameDescription
Measured serum trough concentration (Ctrough) of AK104 after the first administration (i.e., prior to dosing in Cycle 2).up to 4 weeksMeasured serum trough concentration (Ctrough) of AK104 after the first administration (i.e., prior to dosing in Cycle 2).
Measured area under the concentration-time curve from 0 to 21 days of AK104 after the first administration.up to 4 weeksMeasured area under the concentration-time curve from 0 to 21 days of AK104 after the first administration.

Secondary

MeasureTime frameDescription
Objective Response Rate (ORR) per RECIST 1.1up to 24 monthsAssessed by investigators
Disease Control Rate (DCR) per RECIST 1.1Up to 24 monthsAssessed by investigators
Progression-free survival (PFS) assessed by investigator per RECIST v1.1Up to 24 monthsPFS is defined as the time from randomization till the first documented disease progression (Per RECIST v1.1 assessed by the investigator) or death due to any cause, whichever occurs first.
Duration of Response (DOR) assessed by investigator per RECIST v1.1Up to 24 monthsDOR means time measured from the date of partial or complete response to therapy until the cancer progresses based on RECIST v1.1 criteria.
Time to Response (TTR) assessed by investigator per RECIST v1.1Up to 24 monthsTTR refers to Time to Response.
Overall SurvivalUp to 24 monthsOS is defined as the time from randomization to death due to any cause.
Number of participants with adverse event (AE)Up to 27 monthsThe number of participants experiencing an Adverse Event (AE) and the severity of AEs will be assessed. AE refers to any untoward medical occurrence or deterioration of existing medical event after the subject signed the ICF, whether or not considered related to the study treatment.

Contacts

CONTACTTing Liu
clinicaltrials@akesobio.com+86 (0760) 8987 3999
PRINCIPAL_INVESTIGATORYanqiao Zhang

The Second Affiliated Hospital of Harbin Medical University

PRINCIPAL_INVESTIGATORTao Zhang

UNIVERSITY OF SCIENCE AND TECHNOLOGY UNION HOSPITAL TONG JI MEDICAL COLLEGE HUA ZHONG

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 5, 2026