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NCT06003231

PHASE2

A Study of Disitamab Vedotin in Previously Treated Solid Tumors That Express HER2

Sponsor: Seagen, a wholly owned subsidiary of Pfizer

View on ClinicalTrials.gov

Summary

This clinical trial is studying advanced or metastatic solid tumors. Once a solid tumor has grown very large in one spot or has spread to other places in the body, it is called advanced or metastatic cancer. Participants in this study must have head and neck cancer, non-small cell lung cancer, endometrial cancer, or ovarian cancer. In the first part of the study, participants must have tumors that have a marker called HER2. This clinical trial uses an experimental drug called disitamab vedotin (DV). DV is a type of antibody-drug conjugate or ADC. ADCs are designed to stick to cancer cells and kill them. In this study, all participants will get DV once every 2 weeks. This study is being done to see if DV works to treat different types of solid tumors that express HER2. It will also test how safe the drug is for participants. This trial will also study what side effects happen when participants get the drug. A side effect is anything a drug does to your body besides treating the disease.

Official title: A Phase 2 Basket Study of Disitamab Vedotin in Adult Subjects With Previously Treated, Locally-Advanced Unresectable or Metastatic Solid Tumors That Express HER2

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

INTERVENTIONAL

Enrollment

120

Start Date

2023-11-14

Completion Date

2028-05-31

Last Updated

2026-04-07

Healthy Volunteers

Conditions

Carcinoma, Non-Small-Cell Lung Ovarian Neoplasms Endometrial Neoplasms Head and Neck Neoplasms

Interventions

DRUG

disitamab vedotin

Given into the vein (IV, intravenous) every 2 weeks

Inclusion Criteria: * Cohort 1: Head and neck cancer (HNC) * Must have pathologically-documented carcinoma of the head and neck with primary tumor site arising from the oral cavity, salivary gland, oropharynx, hypopharynx, and larynx; tumors arising from the nasopharynx are excluded. * Unresectable locally recurrent or metastatic stage disease * Prior therapies: * Participants must have disease progression after treatment with a platinum-based therapy * Cohort 2: Non-small cell lung cancer (NSCLC) * Pathologically documented NSCLC * Unresectable locally-advanced or metastatic stage disease * Prior therapies * Must have progressed during or after a platinum-based therapy for LA/metastatic disease or, within 6 months of platinum-based adjuvant, neoadjuvant, or concomitant chemoradiotherapy for early or locally-advanced stage disease * Must have received prior anti-PD(L)1 therapy, unless contraindicated * Participants with known AGAs must have received appropriate targeted therapy, where available. * No more than 2 prior lines of cytotoxic chemotherapy for advanced disease * Cohort 3: Ovarian Cancer * Pathologically documented epithelial cancers of ovarian, fallopian tube, or peritoneal origin * Unresectable locally-advanced or metastatic stage disease * Prior therapies * Must have platinum resistant disease (6 months or less between the completion of platinum-based treatment and identification of recurrence) * Must not have received more than 4 lines of prior cytotoxic chemotherapies for advanced disease * Participants with known BRCA mutations are permitted, but participants must have received targeted therapy with a PARP inhibitor * May have received prior anti-PD(L)1 therapy * Cohort 4: Endometrial Cancer * Must have pathologically documented adenocarcinoma of the endometrium * Must have unresectable locally-advanced or metastatic stage disease. * Prior therapies * Must have relapsed/progressed after at least one prior platinum-based chemotherapy for recurrent, metastatic or primary unresectable disease * Must not have received more than 3 lines of prior cytotoxic chemotherapies for advanced disease * May have received prior anti-PD(L)1 therapy * HER2 expression of 1+, 2+, or 3+, as determined by local IHC testing on a fresh or archival tumor tissue. Note: Participants with HER2 mutations are eligible. * Measurable disease per RECIST v1.1 criteria as assessed by the investigator * Able to provide formalin-fixed, paraffin-embedded (FFPE) tumor tissue blocks (or freshly sectioned slides) * Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 Exclusion Criteria: * Prior treatment with an MMAE-containing agent. * Known hypersensitivity to any excipient contained in the drug formulation of disitamab vedotin. * History of another invasive malignancy within 2 years before the first dose of study intervention, or any evidence of residual disease from a previously diagnosed malignancy. * Active untreated CNS or leptomeningeal metastasis