Status:

RECRUITING

Ph1b/2 Study of the Safety and Efficacy of T-DXd Combinations in Advanced HER2-expressing Gastric Cancer (DESTINY-Gastric03)

Lead Sponsor:

AstraZeneca

Collaborating Sponsors:

Daiichi Sankyo

Conditions:

Gastric Cancer

Eligibility:

All Genders

18-130 years

Phase:

PHASE2

Brief Summary

DESTINY-Gastric03 will investigate the safety, tolerability, pharmacokinetics, immunogenicity, and preliminary antitumor activity of trastuzumab deruxtecan (T-DXd) alone or in combination with chemoth...

Eligibility Criteria

Inclusion

  • Inclusion criteria:
  • Male and female participants must be at least 18 years of age. Other age restrictions may apply as per local regulations
  • Disease Characteristics:
  • Locally advanced, unresectable, or metastatic disease based on most recent imaging
  • For Part 1, 2, 3a, 4a pathologically documented adenocarcinoma of the stomach/GEJ/esophagus, HER2-positive (IHC 3+ or IHC 2+/ISH+) based on local tissue testing results
  • For Part 3b,4b and Part 5, pathologically documented adenocarcinoma of the stomach/GEJ/esophagus, HER2-low (IHC 2+/ISH-negative or IHC 1+) based on local tissue testing results
  • For Part 1, progression on or after at least one prior trastuzumabcontaining regimen For Part 2, Part 3, Part 4 and Part 5, previously untreated for unresectable or metastatic adenocarcinoma of the stomach/GEJ/ esophagus with with HER2-positive (Part 2 and Part 3 \[Arm 3A\] and Part 4 \[Arm 4A\]) or HER2-low (Part 3 \[Arm 3B\], Part 4 \[Arm 4B\] and Part 5)) status
  • Has measurable target disease assessed by the Investigator based on RECIST version 1.1
  • Has protocol defined adequate bone marrow and organ function including cardiac, renal and hepatic function
  • If of reproductive potential, agrees to use a highly effective form of contraception or avoid intercourse during and upon completion of the study.
  • Exclusion criteria:
  • Part 1 to 4: History of active primary immunodeficiency, known HIV, active chronic, or past hepatitis B infection, or hepatitis C infection. Part 5: evidence of active, uncontroled HIV, HBV or HCV infection.
  • Uncontrolled intercurrent illness.
  • History of non-infectious pneumonitis/ILD, current ILD, or where suspected ILD that cannot be ruled out by imaging at screening.
  • Lung-specific intercurrent clinically significant severe illnesses.
  • Uncontrolled infection requiring intravenous (IV) antibiotics, antivirals, or antifungals.
  • Pleural effusion, ascites or pericardial effusion that requires drainage, peritoneal shunt, or Cell-free and Concentrated Ascites Reinfusion Therapy (CART).
  • Has spinal cord compression or clinically active central nervous system metastases.

Exclusion

    Key Trial Info

    Start Date :

    June 3 2020

    Trial Type :

    INTERVENTIONAL

    Allocation :

    ESTIMATED

    End Date :

    June 1 2027

    Estimated Enrollment :

    413 Patients enrolled

    Trial Details

    Trial ID

    NCT04379596

    Start Date

    June 3 2020

    End Date

    June 1 2027

    Last Update

    December 2 2025

    Active Locations (100)

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    Page 1 of 25 (100 locations)

    1

    Research Site

    Santa Monica, California, United States, 90404

    2

    Research Site

    Westwood, Kansas, United States, 66205

    3

    Research Site

    Baltimore, Maryland, United States, 21287

    4

    Research Site

    Boston, Massachusetts, United States, 02114

    Ph1b/2 Study of the Safety and Efficacy of T-DXd Combinations in Advanced HER2-expressing Gastric Cancer (DESTINY-Gastric03) | DecenTrialz