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A Trial of SHR1701 Plus Chemotherapy in Patients With Gastric or Gastroesophageal Cancer

Phase 3
Active, not recruiting
Conditions
Gastric or Gastroesophageal Junction Cancer
Interventions
Drug: SHR-1701、CAPOX
Drug: Placebo、CAPOX
Registration Number
NCT04950322
Lead Sponsor
Suzhou Suncadia Biopharmaceuticals Co., Ltd.
Brief Summary

This study is a randomized, Double-Blind, multi-center Phase III clinical study, aimed to evaluate the efficacy and safety of SHR1701 combined with chemotherapy in the treatment of Previously Untreated, Advanced or Metastatic Gastric or Gastroesophageal Junction Cancer. For Part 1 study,the tolerability of SHR-1701 will be evaluated and determine the recommended dose for Part 2.For Part 2 study, all enrolled patients will be randomized to 2 groups and continuously treated until the end criteria of treatment was met.

Detailed Description

Not available

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
737
Inclusion Criteria
  1. Pathologically confirmed diagnosis of locally advanced unresectable or metastatic gastric or gastroesophageal junction (GEJ)adenocarcinoma.
  2. HER2 overexpression or amplification negative.
  3. Female or male, 18 years of age or above.
  4. Eastern Cooperative Oncology Group (ECOG) performance status of 0 - 1.
  5. Patients who are willing and able to provide the signed informed consent form, willing and able to comply with all the scheduled visits, study treatment, laboratory tests, and other study procedures.
Exclusion Criteria
  1. Squamous cell carcinoma, undifferentiated carcinoma, or other histological types of gastric cancer.
  2. Presence of inadequately treated CNS metastases, or uncontrolled or symptomatic active CNS metastases ,leptomeningeal disease, and/or rapid progression.
  3. Presence of uncontrolled pleural effusion or ascites despite puncture drainage within 14 days prior to randomization.
  4. More than 20% weight loss within 2 months prior to randomization.
  5. Diagnosed with other malignant tumors within 5 years prior to enrollment.
  6. Presence of any active, known or suspected autoimmune disease.
  7. Prior treatment with TGF-β inhibitor, anti-PD-1/PD-L1 antibodies, anti-PD-L2 antibodies, anti-CD137 antibodies, anti-CTLA-4 antibodies, or other drugs/antibodies.
  8. Severe, unhealed, or dehisced wounds and active ulcers or untreated fractures.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Treatment group ASHR-1701、CAPOX-
Treatment group BPlacebo、CAPOX-
Primary Outcome Measures
NameTimeMethod
OS in all subjects in part 2 studyup to 3 years

Overall survival (OS)

AEs and SAEs in part 1 studyup to 2 years

The number and proportion of subjects with dose limiting toxicity. The safety endpoints, including incidence and severity of adverse events (AEs) and serious adverse events (SAEs).

Overall survival in subjects with PD-L1 CPS ≥ 5 in part 2 studyup to 3 years
Secondary Outcome Measures
NameTimeMethod
OS in part 1 studyup to 3 years

Overall survival (OS)

PFS in part 1 studyup to 2 years

Progression free survival (PFS) as assessed by the investigator per RECIST 1.1

DoR in part 1 studyup to 2 years

Duration of response (DoR) as assessed by the investigator per RECIST 1.1

DoR in part2 studyup to 2 years

DoR in subjects with PD-L1 CPS ≥5 and in all subjects as assessed by BICR per RECIST 1.1

ORR in part 1 studyup to 2 years

Objective response rate (ORR) as assessed by the investigator per RECIST 1.1

ORR in part 2 studyup to 2 years

ORR in subjects with PD-L1 CPS ≥5 and in all subjects as assessed by investigator per RECIST 1.1

EORTC QLQ-STO22 scoreup to 2 years
EQ-5D-5L scoreup to 2 years
DCR in part 1 studyup to 2 years

Disease control rate (DCR) as assessed by the investigator per RECIST 1.1

PFS in subjects with PD-L1 CPS ≥5 and in all subjects as assessed by investigator as per RECIST 1.1up to 2 years
DoR in part 2 studyup to 2 years

DoR in subjects with PD-L1 CPS ≥5 and in all subjects as assessed by investigator per RECIST 1.1

PFS in part 2 studyup to 3 years

PFS in subjects with PD-L1 CPS ≥5 and in all subjects as assessed by BICR per RECIST 1.1

DCR in part 2 studyup to 2 years

DCR in subjects with PD-L1 CPS ≥5 and in all subjects as assessed by investigator per RECIST 1.1

AEs and SAEs in part 2 studyup to 2 years

Safety endpoints, including incidence and severity of AEs and SAEs as per NCI-CTCAE v5.0 criteria

EORTC QLQ-C30 scoreup to 2 years

Trial Locations

Locations (1)

Beijing Cancer Hospital

🇨🇳

Beijing, Beijing, China

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