The biodistribution of Miltuximab® using Gallium-67 nuclear imaging

the MILGa-01 first in human trial

Dhanusha Sabanathan, Howard Gurney, Marko Trifunovic, Pirooz Poursoultan, Kevin Ho Shon, Tiffany R. Sia, Sandra Wissmueller, Paul Roach, Dale L. Bailey, Douglas Campbell, Bradley J. Walsh

Research output: Contribution to journalMeeting abstract

Abstract

Objective: Miltuximabâ is a chimeric antibody targeting Glypican-1 which is overexpressed in prostate cancer. This Phase I trial uses a single dose (250 MBq, 1 mg) of Miltuximabâ conjugated with the chelator (DOTA) radiolabelled with 67 Ga (Gallium-67) with aims to establish dose safety and tolerability. Methods: Metastatic patients are dosed with unlabelled Miltuximabâ conjugated with DOTA followed by the infusion of 67 Ga-Miltuximabâ an hour after. Patients undergo whole body c-camera scans and SPECT/CT scans up to 144 hours postinfusion. Standard of care imaging is performed at least 14 days before and after participation. Between cohorts, safety is evaluated by an external monitoring committee. Results: Ten of twelve patients have been enrolled into the trial. Miltuximabâ is well tolerated and does not elicit any drug-related adverse reactions. 30 minutes post-67Ga-Miltuximabâ dose, intense mediastinal uptake was observed, followed by liver and spleen uptake from 30 min to 72 h post dose. Conclusions: This study is the first in human for Miltuximabâ and demonstrates its potential for further clinical evaluation as a theranostic in prostate cancers.
Original languageEnglish
Article number074
Pages (from-to)32-33
Number of pages2
JournalBJU International
Volume122
Issue numberS2
Publication statusPublished - 2018
Event19th Asia-Pacific Prostate Cancer Conference - Brisbane, Australia
Duration: 22 Aug 201825 Aug 2018

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    Sabanathan, D., Gurney, H., Trifunovic, M., Poursoultan, P., Shon, K. H., Sia, T. R., ... Walsh, B. J. (2018). The biodistribution of Miltuximab® using Gallium-67 nuclear imaging: the MILGa-01 first in human trial. BJU International, 122(S2), 32-33. [074].