Status:

RECRUITING

SHR-A1811 for Subjects With Her2-positive Gastric Cancer and Gastroesophageal Junction Adenocarcinoma After Progression on or After First-line Anti-HER2 Therapy-containing Regimen

Lead Sponsor:

Jiangsu HengRui Medicine Co., Ltd.

Conditions:

HER2-positive Advanced Gastric Cancer or Gastroesophageal Junction Adenocarcinoma

Eligibility:

All Genders

18-75 years

Phase:

PHASE3

Brief Summary

This study will assess the efficacy and safety of SHR-A1811 compared with treatment chosen by the investigator in participants with HER2-positive (defined as immunohistochemistry \[IHC\] 3+ or IHC 2+/...

Eligibility Criteria

Inclusion

  • Age 18-75 years old, male and female;
  • Histologically or cytologically confirmed gastric or gastroesophageal junction adenocarcinoma, and unresectable locally advanced or metastatic disease
  • Prior anti-HER-2 containing treatment
  • Progression on or after first-line standard treatment (Prior neoadjuvant or adjuvant therapy can be counted as a line of therapy if the subject progressed on or within 6 months of completing neoadjuvant or adjuvant therapy);
  • Centrally confirmed HER2-positive (IHC 3+ or IHC 2+ and evidence of HER2 amplification by ISH) as classified by ASCO-CAP on a tumor biopsy
  • At least one measurable lesion according to the solid tumor response Evaluation Criteria (RECIST 1.1);
  • ECOG: 0-1;
  • Expected survival ≥12 weeks;
  • Good blood reserve and liver, kidney and coagulation function;
  • Willing to provide informed consent for study participation.

Exclusion

  • Receive the last dose of anti-cancer therapy(including chemotherapy, radiotherapy, biological therapy, targeted therapy or immunotherapy) within 4 weeks, prior to the first dose;
  • Known allergies to monoclonal antibodies and inactive ingredients of this product, and allergies to paclitaxel, docetaxel, and irinotecan concurrently;
  • The toxicity of prior anti-tumor therapy did not recover to the level specified by CTCAE v5.0 grade evaluation ≤ Grade 1 or inclusion/exclusion criteria;
  • Clinically active central nervous system metastases;
  • Uncontrollable pleural effusion, pericardial effusion, or ascites requiring repeated drainage;
  • Clinically significant gastrointestinal disorder by the opinion of Investigator;
  • Has a history of immunodeficiency, including a positive HIV test;
  • During the screening visits and before the first dose, unexplained fever \> 38.5℃, severe infection (CTC-AE \> Grade 2), and active pulmonary inflammation were indicated by screening imaging;
  • Subjects with interstitial pneumonia or with ≥ grade 3 interstitial pneumonia during prior treatment with immune checkpoint inhibitors;
  • Active hepatitis B(HBV DNA ≥ 500 IU/mL), hepatitis C (positive for hepatitis C antibody, and HCV-RNA above the lower limit of detection of the analytical method);
  • Clinically significant cardiovascular disease ,such as severe/unstable angina, symptomatic congestive heart failure (NYHA ≥ Class II.), clinically significant supraventricular or ventricular arrhythmia requiring treatment or intervention, myocardial infarction within 6 months before the first dose, cerebrovascular accident (including transient ischemic attack); QTcF of 12-lead ECG was ≥470 ms; Left ventricular ejection fraction \<50%; Clinically uncontrolled hypertension;
  • Had other malignancies with 5 years;
  • Pregnant or lactating women;
  • Other factors that might have led to drop out the study by the investigator opinion.

Key Trial Info

Start Date :

January 9 2024

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

June 30 2027

Estimated Enrollment :

360 Patients enrolled

Trial Details

Trial ID

NCT06123494

Start Date

January 9 2024

End Date

June 30 2027

Last Update

January 16 2024

Active Locations (1)

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Page 1 of 1 (1 locations)

1

Shanghai East Hospital

Shanghai, Shanghai Municipality, China, 200433