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A Phase Ib/II Study of AK104 and AK117 in Combination With or Without Chemotherapy in Advanced Malignant Tumors

Registration Number
NCT05235542
Lead Sponsor
Akeso
Brief Summary

Phase Ib/II open label, multicenter study to evaluate the efficacy and safety of AK104 (anti-PD-1 and CTLA-4 bispecific antibody) and AK117#AntiCD47 Antibody# combined with or without chemotherapy in advanced malignant tumors

Detailed Description

Not available

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
130
Inclusion Criteria
  1. 18 to 75 years old.
  2. Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  3. Have a life expectancy of at least 3 months.
  4. Phase Ib: Histologically or cytologically confirmed advanced solid tumor.
  5. Phase II: Has histologically confirmed diagnosis of unresectable locally advanced,recurrent or metastatic gastric or GEJ adenocarcinoma or Esophageal squamous cell carcinoma.
  6. Have at least one measurable lesion based on Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 assessed by investigator.
  7. Has adequate organ function.
Exclusion Criteria
  1. Undergone major surgery within 30 days prior to the first dose of study treatment.
  2. Active central nervous system (CNS) metastases.
  3. History of active autoimmune disease that has required systemic treatment in the past 2 years (i.e.,corticosteroids or immunosuppressive drugs).
  4. Active Hepatitis B or Hepatitis C.
  5. Received previous immunotherapy, including immune checkpoint inhibitors, immune checkpoint agonists, immune cell therapy and other treatments targeting the mechanism of tumor immunity.
  6. History of severe bleeding tendency or coagulation disorder.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Phase Ib#Dosage regimen 1#AK117Subjects receive AK104 plus AK117 every 3- week cycle (Q3W) until progression
Phase Ib#Dosage regimen 1#AK104Subjects receive AK104 plus AK117 every 3- week cycle (Q3W) until progression
Phase Ib#Dosage regimen 2#AK117Subjects receive AK104 plus AK117 every 6- week cycle (Q6W) until progression
Phase II#Cohort 1#AK104Gastric Cancer or Gastroesophageal Junction Cancer: AK104 + XELOX (Oxaliplatin + Capecitabine)+AK117 every 3- week cycle (Q3W) until progression
Phase II#Cohort 1#AK117Gastric Cancer or Gastroesophageal Junction Cancer: AK104 + XELOX (Oxaliplatin + Capecitabine)+AK117 every 3- week cycle (Q3W) until progression
Phase II#Cohort 1#Capecitabine tabletsGastric Cancer or Gastroesophageal Junction Cancer: AK104 + XELOX (Oxaliplatin + Capecitabine)+AK117 every 3- week cycle (Q3W) until progression
Phase II#Cohort 3#AK117Gastric Cancer or Gastroesophageal Junction Cancer or Esophageal squamous cell cancer: AK117 +Paclitaxel/Docetaxel/Irinotecan every 3- or 4- week cycle (Q3W or Q4W) until progression
Phase II#Cohort 2#AK117Esophageal squamous cell cancer: AK104 + 5-FU/Paclitaxel+Cisplatin± AK117 every 3- week cycle (Q3W) until progression
Phase II#Cohort 3#PaclitaxelGastric Cancer or Gastroesophageal Junction Cancer or Esophageal squamous cell cancer: AK117 +Paclitaxel/Docetaxel/Irinotecan every 3- or 4- week cycle (Q3W or Q4W) until progression
Phase Ib#Dosage regimen 2#AK104Subjects receive AK104 plus AK117 every 6- week cycle (Q6W) until progression
Phase II#Cohort 2#CisplatinEsophageal squamous cell cancer: AK104 + 5-FU/Paclitaxel+Cisplatin± AK117 every 3- week cycle (Q3W) until progression
Phase II#Cohort 1#OxaliplatinGastric Cancer or Gastroesophageal Junction Cancer: AK104 + XELOX (Oxaliplatin + Capecitabine)+AK117 every 3- week cycle (Q3W) until progression
Phase II#Cohort 2#AK104Esophageal squamous cell cancer: AK104 + 5-FU/Paclitaxel+Cisplatin± AK117 every 3- week cycle (Q3W) until progression
Phase II#Cohort 2#PaclitaxelEsophageal squamous cell cancer: AK104 + 5-FU/Paclitaxel+Cisplatin± AK117 every 3- week cycle (Q3W) until progression
Phase II#Cohort 2#5-FUEsophageal squamous cell cancer: AK104 + 5-FU/Paclitaxel+Cisplatin± AK117 every 3- week cycle (Q3W) until progression
Phase II#Cohort 3#DocetaxelGastric Cancer or Gastroesophageal Junction Cancer or Esophageal squamous cell cancer: AK117 +Paclitaxel/Docetaxel/Irinotecan every 3- or 4- week cycle (Q3W or Q4W) until progression
Phase II#Cohort 3#IrinotecanGastric Cancer or Gastroesophageal Junction Cancer or Esophageal squamous cell cancer: AK117 +Paclitaxel/Docetaxel/Irinotecan every 3- or 4- week cycle (Q3W or Q4W) until progression
Primary Outcome Measures
NameTimeMethod
Number of patients with Adverse Events (AEs)Up to approximately 2 years
Objective Response Rate (ORR)Up to approximately 2 years
Secondary Outcome Measures
NameTimeMethod
Disease control rate (DCR)Up to approximately 2 years
Duration of Response (DoR)Up to approximately 2 years
Time to response (TTR)Up to approximately 2 years
Progression free survival (PFS)Up to approximately 2 years
Minimum observed concentration (Cmin) of AK117 and AK104 at steady stateFrom first dose of study drug to last dose of of study drug

The endpoints for assessment of PK include serum concentrations of AK117 and AK104 at different timepoints after study drug administration.

Number of subjects who develop detectable anti-drug antibodies (ADAs)From first dose of study drug through 30 days after last dose of study drug

The immunogenicity of AK117 and AK104 will be assessed by summarizing the number of subjects who develop detectable anti-drug antibodies (ADAs).

Overall survival (OS)Up to approximately 2 years
Maximum observed concentration (Cmax) of AK117 and AK104From first dose of study drug to last dose of of study drug

The endpoints for assessment of PK include serum concentrations of AK117 and AK104 at different timepoints after study drug administration.

Trial Locations

Locations (1)

Shanghai Renji Hospital

🇨🇳

Shanghai, China

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