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Study details
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A Study of HER3-DXd in Subjects With Locally Advanced or Metastatic Solid Tumors

Daiichi Sankyo
NCT IDNCT06172478ClinicalTrials.gov data as of Apr 2026
Phase

Phase 2

Target enrollment

740

Study length

about 4.6 years

Ages

18+

Locations

13 sites in CA, CT, FL +8

What this study is about

Researchers are testing a treatment called HER3-DXd for people with advanced solid tumors. The trial will last about 1688 days and enroll approximately 740 participants.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Take HER3-DXd

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Standard

How treatment is administered

Treatment Assignment
All receive treatment

Everyone gets the investigational treatment.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Endpoints

Primary: Number of Participants With Objective Response Rate Assessed by Investigator Following HER3-DXd Monotherapy (All Cohorts Except Prostate Cancer Cohort)

Secondary: Correlation Between HER3 Protein Expression and Efficacy, Disease Control Rate As Assessed by Investigator Following HER3-DXd Monotherapy (All Cohorts Except Prostate Cancer Cohort), Duration of Response As Assessed by Investigator Following HER3-DXd Monotherapy (All Cohorts Except Prostate Cancer Cohort), Overall Number of Participants With Treatment-emergent Adverse Events Following HER3-DXd Monotherapy (All Cohorts), Overall Survival Following HER3-DXd Monotherapy (All Cohorts), Pharmacokinetic Parameter Area Under the Concentration Curve for HER3-DXd (All Cohorts), Pharmacokinetic Parameter Maximum Serum Concentration for HER3-DXd (All Cohorts), Pharmacokinetic Parameter Time to Maximum Serum Concentration for HER3-DXd (All Cohorts)

Body systems

Oncology