A Phase 1, Open-Label, Dose-Escalation Study to Evaluate the Safety and Tolerability of SGN-LIV1A in Patients With Metastatic Breast Cancer
This study will examine the safety and tolerability of SGN-LIV1A (ladiratuzumab vedotin) in patients with metastatic breast cancer. SGN-LIV1A will be given alone or in combination with trastuzumab.
18 Years and up
Accepting Healthy Volunteers?
- Pathologically confirmed diagnosis of breast cancer with radiographic evidence of incurable, unresectable, locally advanced or metastatic disease (LA/MBC)
- One of the following:
- Part A: Triple-negative disease (ER/PR/HER2-negative) and received at least 2 prior cytotoxic regimens in the incurable, unresectable, LA/MBC setting; or ER-positive and/or PR-positive/HER2-negative disease and received at least 2 prior cytotoxic regimens in the incurable, unresectable, LA/MBC setting and are no longer a candidate for hormonal therapy (not enrolling new patients);
- Part B: Combination Arm: HER2-positive disease and received at least 2 prior cytotoxic regimens in the incurable, unresectable, LA/MBC setting (not enrolling new patients);
- Part C: Triple-negative disease and received 2-4 prior non-hormonally-directed therapies in the MBC setting (not enrolling new patients);
- Part D and Part E (dose-expansion cohort): Triple-negative disease and received 1 prior non-hormonally-directed or cytotoxic therapy in the MBC setting; or
- Part E: HR+(ER-positive and/or PR-positive)/HER2-negative disease who are chemotherapy-eligible and not considered a candidate for further hormonal therapy. Must have received no more than 1 prior non-hormonally-directed or cytotoxic therapy in the LA/MBC setting.
- Parts A, B, C, and D: Newly obtained tumor tissue biopsy and archived tumor tissue, if available, must be collected for central pathology determination of LIV-1 expression
- Part E: Archival baseline tumor sample is required; a fresh biopsy sample may be submitted in place of an archival sample if medically feasible.
- Measurable disease
- Eastern Cooperative Oncology Group performance status 0 or 1
- Combination Arm: adequate heart function
- Pre-existing neuropathy Grade 2 or higher
- Parts A, B, C, and D: Cerebral/meningeal disease that is related to the underlying malignancy and has not been definitively treated. Part E: Known or suspected cerebral/meningeal metastasis that has not been definitively treated.
- Prior treatment with SGN-LIV1A or prior treatment with an MMAE-containing therapy
- Combination Arm: hypersensitivity to trastuzumab