DESTINY-PANTUMOUR04

Effectiveness of T-DXd Across HER2-positive Solid Tumors in Patients Who Have Received Prior Systemic Treatment and Have no Satisfactory Alternative Treatment Options: A Hybrid Observational Study

About This Trial

  • This study looks at how well a targeted drug called T-DXd works in everyday medical care for adults with advanced cancers that have spread or cannot be removed with surgery.
  • It is designed for patients whose tumors test positive for high levels of a specific protein known as HER2.
  • To be eligible, you must have already received standard treatments for your advanced disease and have no other satisfactory treatment options left.
  • Before considering this study, your doctor will need to confirm your tumor has high HER2 levels, and you must not have received this specific medication in the past.

More Information

  • This study will evaluate the effectiveness of T-DXd in patients with HER2-positive (IHC 3+) locally advanced, unresectable, or metastatic solid tumors who have received prior systemic treatment for metastatic or advanced disease and have no satisfactory alternative treatment options in a real-world setting in the US

Who Can Enroll

  • Age Range: 18 - 130 years
  • Gender: All
  • Who This Trial is For: This study looks at how well a targeted drug called T-DXd works in everyday medical care for adults with advanced cancers that have spread or cannot be removed with surgery.

Study Details

  • Start Date: September 18, 2025
  • Lead Sponsor: AstraZeneca
Full Eligibility Criteria

Inclusion Criteria

  • Adults aged ≥18 years
  • Patients with locally advanced, unresectable, or metastatic HER2-positive (IHC 3+) solid tumors who have received prior systemic treatment for metastatic or advanced disease and have no satisfactory alternative treatment options as determined by the Investigator (see Exclusion Criterion 1 for excluded solid tumors);
  • A clinician decision has been made for treatment with T-DXd in accordance with the FDA label;
  • HER2-positive (IHC 3+) by local testing prior to study enrolment at the time of signed and dated informed consent;
  • Patients who are willing and able to provide a signed and dated informed consent.

Exclusion Criteria

  • Primary diagnosis of adenocarcinoma of the breast, adenocarcinoma of the colon or rectum, NSCLC, adenocarcinoma of the gastric body or gastroesophageal junction or hematological malignancies;
  • Prior T-DXd therapy;
  • Patients without a baseline assessment of tumor burden undertaken prior to initiating T-DXd.
  • Patient is participating in a clinical trial at time of enrolment

Treatments

  • Drug: Trastuzumab deruxtecan
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