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

NCT04379596 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 450

Last updated 2026-05-13

No results posted yet for this study

Summary

DESTINY-Gastric03 will investigate the safety, tolerability, pharmacokinetics, immunogenicity, and preliminary antitumor activity of trastuzumab deruxtecan (T-DXd) alone or in combination with chemotherapy and/or immunotherapy in HER2-expressing advanced/metastatic gastric/gastroesophageal junction (GEJ) and esophageal adenocarcinoma patients.

Study hypotheses: Combination of T-DXd with cytotoxic chemotherapy and/or immunotherapy administered to subjects at the recommended phase 2 dose will show manageable safety and tolerability and preliminary anti-tumor efficacy so as to permit further clinical testing. T-DXd in combination with cytotoxic chemotherapy or immune checkpoint inhibitor administered to HER2-expressing gastric, GEJ and esophageal cancer patients who have not received prior treatment for advanced/metastatic disease will show preliminary evidence of anti-tumour activity and the potential to become a therapeutic option for this patient population.

Conditions

Interventions

BIOLOGICAL

Durvalumab

Durvalumab: administered as an IV infusion

DRUG

Oxaliplatin

Oxaliplatin: administered as an IV infusion

BIOLOGICAL

Trastuzumab

Trastuzumab: administered as an IV infusion

DRUG

Trastuzumab deruxtecan

T-DXd: administered as an IV infusion

DRUG

Cisplatin

Cisplatin: administered as an IV infusion

BIOLOGICAL

Pembrolizumab

Pembrolizumab: administered as an IV infusion

BIOLOGICAL

Volrustomig

Volrustomig: administered as an IV infusion

BIOLOGICAL

Rilvegostomig

Rilvegostomig: administered as an IV infusion

DRUG

Fluorouracil (5-FU)

5-FU: administered as an IV infusion

DRUG

Capecitabine

Capecitabine: administered orally

Sponsors & Collaborators

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
130 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-06-03
Primary Completion
2027-06-01
Completion
2027-06-01
FDA Drug
Yes

Countries

  • United States
  • Brazil
  • Canada
  • China
  • Germany
  • Italy
  • Japan
  • Netherlands
  • Poland
  • Russia
  • South Korea
  • Spain
  • Taiwan
  • United Kingdom

Study Locations

More Related Trials

Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04379596 on ClinicalTrials.gov