NKTR-255 is a cytokine that is designed to regulate T and natural killer cell activation, proliferation and promote their anti-tumor effects.
This is a Phase 1, open-label, multi-center, dose escalation, dose expansion, safety follow-up, and survival follow-up of NKTR-255 as a single agent and NKTR-255 in combination with daratumumab. Study treatment is defined as any investigational treatment(s) or marketed product(s), intended to be administered to a study patient according to the study enrollment.
The NKTR-255 starting dose in Dose Group 1 will be 1.5 µg/kg. Patients will receive intravenous (IV) NKTR-255 in 21-day cycles, starting on Cycle 1 Day 1.
The following criteria is a partial list of reasons why patients may or may not be eligible to participate in this clinical trial. Further evaluation with a medical professional will be required to determine full eligibility.
The following criteria is provided for health care professionals.
Key Inclusion Criteria:
Patient has the following laboratory test results during Screening:
Patients are eligible who also meet all the following criteria in these cohorts of Part 2:
Cohort A only:
Cohort B only:
Key Exclusion Criteria:
Patients who have an active, known, or suspected autoimmune disease Any treatment-related neurotoxicity or cytokine release syndrome (CRS) prior to enrollment into the study should return to baseline before NKTR-255 treatment.
The following is a listing of trial locations that are open and accepting patients.
The following is a listing of trial locations that are not currently open and accepting patients.
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