Trastuzumab Deruxtecan for Subjects With HER2-Positive Gastric Cancer or Gastro-Esophageal Junction Adenocarcinoma After Progression on or After a Trastuzumab-Containing Regimen (DESTINY-Gastric04)

  • STATUS
    Recruiting
  • End date
    Nov 15, 2024
  • participants needed
    490
  • sponsor
    Daiichi Sankyo, Inc.
Updated on 3 May 2022

Summary

This study will evaluate the efficacy and safety of trastuzumab deruxtecan (T-DXd) compared with ramucirumab and paclitaxel (Ram + PTX) in participants with HER2-positive gastric or gastro-esophageal junction (GEJ) adenocarcinoma who have progressed on or after a trastuzumab-containing regimen and have not received any additional systemic therapy.

Description

This study will assess the efficacy and safety of T-DXd compared with Ram + PTX in participants with HER2-positive (defined as immunohistochemistry [IHC] 3+ or IHC 2+/in situ hybridization [ISH]+) gastric or GEJ adenocarcinoma (based on [American Society of Clinical Oncology (ASCO) College of American Pathologists (CAP) guidelines and confirmed by central assessment of tumor tissue) who have progressed on or after a trastuzumab-containing regimen and have not received any additional systemic therapy. Participants will be randomized 1:1 to either T-DXd or Ram + PTX treatment. The primary objective will assess overall survival. Secondary objectives will further assess progression-free survival, objective response rate, duration of response, disease control rate, safety, pharmacokinetics, and immunogenicity of T-DXd.

Details
Condition Gastric Cancer, Adenocarcinoma, Gastroesophageal Junction Adenocarcinoma
Treatment Paclitaxel, Ramucirumab, Trastuzumab deruxtecan
Clinical Study IdentifierNCT04704934
SponsorDaiichi Sankyo, Inc.
Last Modified on3 May 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Adults (according to local regulation) and able to provide informed consent for study participation
Pathologically documented gastric and GEJ adenocarcinoma that has been previously treated in the metastatic setting (unresectable, locally advanced, or metastatic disease)
Progression on or after first-line therapy with a trastuzumab or approved trastuzumab biosimilar-containing regimen. Note: Prior neoadjuvant or adjuvant therapy with a trastuzumab-containing regimen can be counted as a line of therapy if the subject progressed on or within 6 months of completing neoadjuvant or adjuvant therapy. Prior neoadjuvant or adjuvant therapy that does not include trastuzumab will not be counted as a line of therapy regardless of the progression status of the subject
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 obtained after progression on or after a first-line trastuzumab or approved trastuzumab biosimilar-containing regimen
Eastern Cooperative Oncology Group performance status of 0 or 1 at Screening
Adequate bone marrow, renal, and hepatic function within 14 days of randomization

Exclusion Criteria

Use of anticancer therapy after trastuzumab-containing treatment
Medical history of myocardial infarction (MI) within 6 months before randomization/enrollment, symptomatic congestive heart failure (New York Heart Association Class II to IV)
Has a QT interval corrected by Fridericia's formula (QTcF) prolongation to >470 msec (female subjects) or >450 msec (male subjects) based on average of the Screening triplicate12-lead ECG
Has a history of (non-infectious) interstitial lung disease (ILD/pneumonitis) that required steroids, has current ILD/pneumonitis, or where suspected ILD/pneumonitis cannot be ruled out by imaging at Screening
Any autoimmune, connective tissue or inflammatory disorders (eg, rheumatoid arthritis, Sjögren syndrome, sarcoidosis, etc.) where there is documented (or a suspicion of) pulmonary involvement at the time of Screening
Prior complete pneumonectomy
Spinal cord compression or clinically active central nervous system metastases, defined as untreated and symptomatic or requiring therapy with corticosteroids or anticonvulsants to control associated symptoms
Has multiple primary malignancies within 3 years, except adequately resected non-melanoma skin cancer, curatively treated in-situ disease, other solid tumors curatively treated
History of severe hypersensitivity reactions to either the T-DXd or inactive ingredients in T-DXd
History of severe hypersensitivity reactions to other monoclonal antibodies, including ramucirumab or to any of its excipients
Known allergy or hypersensitivity to paclitaxel or any components used in the paclitaxel preparation or other contraindication for taxane therapy
Current uncontrolled infection requiring antibiotics, antivirals, or antifungals or an unexplained fever >38.0°C during Screening visits or on the first scheduled day of dosing (at the discretion of the Investigator, participants with tumor fever may be enrolled), which in the Investigator's opinion might compromise the participant's participation in the study or affect the study outcome
Clinically significant gastrointestinal disorder (eg, including hepatic disorders, bleeding, inflammation, occlusion, ileus, diarrhea Grade >1, jaundice, intestinal paralysis, malabsorption syndrome, ulcerative colitis, inflammatory bowel disease, or partial bowel obstruction) in the opinion of Investigator
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