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Cadonilimab Combination With Chemotherapy With or Without AK117 in Resectable Gastric or Gastroesophageal Junction Adenocarcinoma

Phase 2
Recruiting
Conditions
Resectable Gastric or Gastroesophageal Junction Adenocarcinoma
Interventions
Registration Number
NCT05960955
Lead Sponsor
Akeso
Brief Summary

This trial is a Phase II study. All patients are resectable Gastric or Gastroesophageal Junction Adenocarcinoma, Eastern Cooperative Oncology Group (ECOG) performance status 0-1.The purpose of this study is to evaluate the efficacy and safety of cadonilimab combined with chemotherapy with or without AK117 neoadjuvantin treatment of resectable Gastric or Gastroesophageal Junction Adenocarcinoma.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
90
Inclusion Criteria
  • Be able and willing to provide written informed consent.
  • 18 to 75 years old.
  • Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  • Has a histologically confirmed diagnosis of Gastric or Gastroesophageal Junction Adenocarcinoma(G/GEJ).
  • Has Stage T3-4N+M0 G/GEJ (American Joint Committee on Cancer [AJCC])
  • Has measurable disease based on Response Evaluation Criteria in Solid Tumors (RECIST) 1.1.
  • Has adequate organ function.
Exclusion Criteria
  • Are there suspected metastases or locally advanced, unresectable disease, regardless of disease stage.
  • Is currently participating in a study of an investigational agent or using an investigational device.
  • Has undergone major surgery within 30 days of Study Day 1.
  • Has an active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs).
  • Has known active Hepatitis B (e.g., HBsAg reactive) or Hepatitis C (e.g., HCV RNA [qualitative] is detected).
  • History of myocardial infarction, unstable angina, congestive heart failure within 12 months prior to day 1 of study treatment.
  • Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the study.
  • Has received a live virus vaccine within 30 days of the planned first dose of study therapy.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Part 1 cohort 2Tegafur-gimeracil-oteracil potassiumSubjects receive cadonilimab combination chemotherapy(SOX) and AK117 neoadjuvant therapy 3 cycles.
Part 1 cohort 1Tegafur-gimeracil-oteracil potassiumSubjects receive cadonilimab combination chemotherapy(SOX) neoadjuvant therapy 3 cycles.
Part 1 cohort 2CadonilimabSubjects receive cadonilimab combination chemotherapy(SOX) and AK117 neoadjuvant therapy 3 cycles.
Part 2 cohort 2AK117Subjects receive cadonilimab combination chemotherapy(FLOT) and AK117 neoadjuvant therapy 4 cycles.
Part 1 cohort 2AK117Subjects receive cadonilimab combination chemotherapy(SOX) and AK117 neoadjuvant therapy 3 cycles.
Part 2 cohort 1CadonilimabSubjects receive cadonilimab combination chemotherapy(FLOT) neoadjuvant therapy 4 cycles.
Part 2 cohort 1DocetaxelSubjects receive cadonilimab combination chemotherapy(FLOT) neoadjuvant therapy 4 cycles.
Part 2 cohort 15-FluorouracilSubjects receive cadonilimab combination chemotherapy(FLOT) neoadjuvant therapy 4 cycles.
Part 1 cohort 1CadonilimabSubjects receive cadonilimab combination chemotherapy(SOX) neoadjuvant therapy 3 cycles.
Part 1 cohort 1OxaliplatinSubjects receive cadonilimab combination chemotherapy(SOX) neoadjuvant therapy 3 cycles.
Part 1 cohort 2OxaliplatinSubjects receive cadonilimab combination chemotherapy(SOX) and AK117 neoadjuvant therapy 3 cycles.
Part 2 cohort 1OxaliplatinSubjects receive cadonilimab combination chemotherapy(FLOT) neoadjuvant therapy 4 cycles.
Part 2 cohort 2CadonilimabSubjects receive cadonilimab combination chemotherapy(FLOT) and AK117 neoadjuvant therapy 4 cycles.
Part 2 cohort 2OxaliplatinSubjects receive cadonilimab combination chemotherapy(FLOT) and AK117 neoadjuvant therapy 4 cycles.
Part 2 cohort 2DocetaxelSubjects receive cadonilimab combination chemotherapy(FLOT) and AK117 neoadjuvant therapy 4 cycles.
Part 2 cohort 25-FluorouracilSubjects receive cadonilimab combination chemotherapy(FLOT) and AK117 neoadjuvant therapy 4 cycles.
Primary Outcome Measures
NameTimeMethod
Incidence and severity of adverse events (AE), rate of surgical delays, abnormal laboratory findings of clinical significanceUp to approximately 2 years
Pathological complete response (pCR) ratesUp to approximately 2 years

pCR is defined the 0% residual viable tumor cells in the primary tumor and sampled lymph nodes

Secondary Outcome Measures
NameTimeMethod
EFSUp to approximately 2 years
Tumor regression grade(TRG)Up to approximately 2 years
Tumor descending stage rateUp to approximately 2 years

Proportion of subjects whose tumor TNM stage decreased from baseline before surgery

Major pathological response(MPR) ratesUp to approximately 2 years

MPR is defined the ≤10% residual viable tumor cells in the primary tumor and sampled lymph nodes

ORRUp to approximately 2 years
OSUp to approximately 2 years
PKUp to approximately 2 years

Serum drug concentrations of cadonilimab and/or AK117 in individual subjects at different time points

ADAUp to approximately 2 years

Number of subjects with detectable anti-drug antibodies (ADA).

R0 resection rateUp to approximately 2 years

Trial Locations

Locations (1)

Tianjin Provincial Tumor Hospital

🇨🇳

Tianjin, China

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