A Phase III Study Evaluating the Efficacy and Safety of ASKB589 Combined With CAPOX and PD-1 Inhibitor as First-Line Treatment in Claudin18.2 Positive Patients With Unresectable Locally Advanced or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma
试验速览
- 阶段
- 3 期
- 状态
- 进行中（未招募）
- 入组人数
- 780
- 试验地点
- 1
- 主要终点
- Progression Free Survival (PFS)
研究概览
简要总结
This study is a multicenter, randomized, double-blind, standard-of-care controlled phase III clinical study conducted in China. The purpose of this study is to evaluate the efficacy of ASKB589 plus CAPOX and PD-1 inhibitor compared with placebo plus CAPOX and PD-1 inhibitor (as first-line treatment) as measured by Progression Free Survival (PFS).
详细描述
This study is a multicenter, randomized, double-blind, standard-of-care controlled phase III clinical study conducted in China. The purpose of this study is to evaluate the efficacy of ASKB589 plus CAPOX and PD-1 inhibitor compared with placebo plus CAPOX and PD-1 inhibitor (as first-line treatment) as measured by Progression Free Survival (PFS).
This study will also evaluate efficacy, physical function, safety, and tolerability of ASKB589, as well as its effects on quality of life. Pharmacokinetics (PK) of ASKB589 and the immunogenicity profile of ASKB589 will be evaluated as well.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Histologically confirmed adenocarcinoma of gastric and gastroesophageal junction
- •Advanced recurrent or metastatic disease confirmed by imaging within 28 days prior to randomization
- •Suitable for chemotherapy combined with PD-1 inhibitor
- •Not suitable for anti-HER2 therapy
- •Have at least one measurable lesion according to RECIST1.1 assessed by site investigator within 28 days prior to randomization
- •CLDN 18.2 positive
排除标准
- •Patients with active central nervous system (CNS) metastases or suspected carcinomatous meningitis
- •Participants have significant gastric bleeding
- •The presence of clinically uncontrollable third interspace fluid
- •Received anti-CLDN18.2 antibody at any time in the past
- •Suspected complete or partial obstruction of gastroesophageal access
研究组 & 干预措施
Group A
Treatment with intravenous infusion of ASKB589 on day 1 of each cycle. The infusion duration should be at least 3 hours, and can be shortened or extended in subsequent cycles as appropriate according to the patient's tolerability. Interruption or slow down of intravenous infusion is allowed to manage toxicity. Dosing is continued every cycle until participants meet the criteria of treatment discontinuation.
干预措施: Capecitabine (Drug)
Group B
Treatment with intravenous infusion of placebo on day 1 of each cycle. The infusion duration should be at least 3 hours, and can be shortened or extended in subsequent cycles as appropriate according to the patient's tolerability. Interruption or slow down of intravenous infusion is allowed to manage toxicity. Dosing is continued every cycle until participants meet the criteria for treatment discontinuation.
干预措施: Capecitabine (Drug)
Group A
Treatment with intravenous infusion of ASKB589 on day 1 of each cycle. The infusion duration should be at least 3 hours, and can be shortened or extended in subsequent cycles as appropriate according to the patient's tolerability. Interruption or slow down of intravenous infusion is allowed to manage toxicity. Dosing is continued every cycle until participants meet the criteria of treatment discontinuation.
干预措施: Oxaliplatin (Drug)
Group B
Treatment with intravenous infusion of placebo on day 1 of each cycle. The infusion duration should be at least 3 hours, and can be shortened or extended in subsequent cycles as appropriate according to the patient's tolerability. Interruption or slow down of intravenous infusion is allowed to manage toxicity. Dosing is continued every cycle until participants meet the criteria for treatment discontinuation.
干预措施: Oxaliplatin (Drug)
Group B
Treatment with intravenous infusion of placebo on day 1 of each cycle. The infusion duration should be at least 3 hours, and can be shortened or extended in subsequent cycles as appropriate according to the patient's tolerability. Interruption or slow down of intravenous infusion is allowed to manage toxicity. Dosing is continued every cycle until participants meet the criteria for treatment discontinuation.
干预措施: Tislelizumab (Drug)
Group A
Treatment with intravenous infusion of ASKB589 on day 1 of each cycle. The infusion duration should be at least 3 hours, and can be shortened or extended in subsequent cycles as appropriate according to the patient's tolerability. Interruption or slow down of intravenous infusion is allowed to manage toxicity. Dosing is continued every cycle until participants meet the criteria of treatment discontinuation.
干预措施: ASKB589 (Drug)
Group A
Treatment with intravenous infusion of ASKB589 on day 1 of each cycle. The infusion duration should be at least 3 hours, and can be shortened or extended in subsequent cycles as appropriate according to the patient's tolerability. Interruption or slow down of intravenous infusion is allowed to manage toxicity. Dosing is continued every cycle until participants meet the criteria of treatment discontinuation.
干预措施: Tislelizumab (Drug)
Group B
Treatment with intravenous infusion of placebo on day 1 of each cycle. The infusion duration should be at least 3 hours, and can be shortened or extended in subsequent cycles as appropriate according to the patient's tolerability. Interruption or slow down of intravenous infusion is allowed to manage toxicity. Dosing is continued every cycle until participants meet the criteria for treatment discontinuation.
干预措施: Placebo (Drug)
结局指标
主要结局
Progression Free Survival (PFS)
时间窗: Until disease progression or withdrawal from the study (generally up to 24 months)
PFS is defined as the time from the date of randomization until the date of radiological progressive disease (per Response Evaluation Criteria In Solid Tumors (RECIST) 1.1 by Independent Review Committee (IRC)) or death from any cause, whichever is earliest.
次要结局
- Overall Survival (OS)(Until death or withdrawal from the study)