The proposed clinical trial is a phase I, open-label, multi-center, dose-escalation study of ALT-803 in patients with surgically incurable advanced solid tumors: melanoma, renal cell, non-small cell lung and squamous cell head and neck cancer
This trial will investigate the safety and immunogenicity, immunomodulatory properties, and clinical benefits of treatment with weekly doses of ALT-803 in patients with advanced solid tumors.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
26
N-803 will be administered at the following doses intravenously: 0.3/0.5, 1.0, 3.0, 6.0 ug/kg N-803 will be administered at the following does subcutaneously: 6.0, 10.0, 15.0, 20.0 ug/kg N-803 will be administered intratumorally at a dose of 10.0 ug/kg, followed by N-803 administered subcutaneously at a dose of 15.0 ug/kg. Each treatment cycle consists of 4 weeks on therapy and 2 weeks off. Patients will receive weekly dose of ALT-803 for 4 weeks (Days 1, 8, 15, and 22) used for the identification of the OBD and MTD. After a 2-week rest period (Weeks 5 and 6) and recovery of any dose limiting toxicities to grade 0-1 of Cycle 1, a second 6-week cycle (4 weeks on treatment and 2 weeks off) can begin. After a rest period during Weeks 5 and 6 of Cycle 2, stable or benefitting patients assessed at week 8 +/- 1 may receive up to 2 additional 6-week cycles.
University of Minnesota
Minneapolis, Minnesota, United States
Dartmouth Hitchcock Medical Center
Lebanon, New Hampshire, United States
Rutgers Cancer Institute of New Jersey
New Brunswick, New Jersey, United States
Cleveland Clinic Foundation
Cleveland, Ohio, United States
Dose Limiting Toxicity
The safety endpoint is the MTD of ALT-803, defined as the dose level below that at which ≥2 of 6 patients experience a DLT.
Time frame: 9 months
Number of Participants Who Developed Anti-drug Antibodies to ALT-803
Immunogenicity of ALT-803 assessed by ELISA
Time frame: 14 days post final dose, up to 135 days
To Evaluate the Effect of Escalating Doses of ALT-803: Pharmacokinetics (Half Life and Tmax)
Pharmacokinetics of ALT-803 assessed by ELISA
Time frame: 24 hours post dose
To Evaluate the Effect of Escalating Doses of ALT-803: Pharmacokinetics (Cmax)
Pharmacokinetics of ALT-803 assessed by ELISA
Time frame: 24 hours after first dose
To Evaluate the Effect of Escalating Doses of ALT-803: Pharmacokinetics (AUC 0-t, AUC0-24, AUC0-infinity)
Pharmacokinetics of ALT-803 assessed by ELISA
Time frame: 24 hours after first dose
To Evaluate the Effect of Escalating Doses of ALT-803: Interferon Gamma (IFN-γ)
The level of immune response to autochthonous viral and tumor antigens by interferon gamma (IFN-γ) ELISPOT
Time frame: Cycle 1 Week 1, pre-dose; Cycle 1 Week 1, 30 minutes post dose; Cycle 1 Week 1, 2 hours post dose; Cycle 1 Week 1, 4 hours post dose; Cycle 1 Week 1, 8 hours post dose; Cycle 1 Week 1, 24 hours post dose
Objective Response Rate
Number of patients with CR, PR, SD, and PD
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University of Washington, Seattle Cancer Care Alliance
Seattle, Washington, United States
Time frame: Up to 6 months