Official Title: Phase 1 Trial of 111Indium225Actinium-DOTA-Daratumumab in Patients With RelapsedRefractory Multiple Myeloma
Status: RECRUITING
Status Verified Date: 2024-01
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: This phase I trial tests the safety side effects and best dose of actinium Ac 225-DOTA-daratumumab 225Ac-DOTA-daratumumab in combination with daratumumab and indium In 111-DOTA-daratumumab 111In-DOTA-daratumumab in treating patients with multiple myeloma that does not respond to treatment refractory or that has come back recurrent Daratumumab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread 111In-DOTA-daratumumab and 225Ac-DOTA-daratumumab are forms of radioimmunotherapy in which a monoclonal antibody daratumumab has been linked to a radiotracer to allow for targeted delivery of the treatment to cancer cells Giving all three together may kill more cancer cells
Detailed Description: PRIMARY OBJECTIVE
I To assess the safety and tolerability of 111In225Ac-DOTA-daratumumab at each dose level in order to establish the maximum tolerated dose MTD which will inform the recommended phase 2 dose RP2D
SECONDARY OBJECTIVES
I To describe the anti-myeloma activity of 225Ac-DOTA-daratumumab as assessed by overall response rate ORR
II To evaluate the organ biodistribution pharmacokinetics and organ dose estimates of 111In225Ac-DOTA-daratumumab
EXPLORATORY OBJECTIVE
I To assess the activity of 225Ac-DOTA-daratumumab against non-cancer immune cells using the peripheral blood and bone marrow BM samples
OUTLINE This is a dose-escalation trial of 225Ac-DOTA-daratumumab
Patients receive daratumumab intravenously IV over 45 minutes Two hours later patients receive 111In-DOTA-daratumumab and 225Ac-DOTA-daratumumab IV over 20-30 minutes
After completion of study treatment patients are followed up weekly for 8 weeks every 2 weeks for 4 weeks every 4 weeks for 16 weeks and then periodically up to 12 months