“…De Santis et al described AvidinOX (Alfasigma S.p.A.), an avidin variant designed to prolong the tissue half-life (2 wk compared with 2 h for native avidin) and to demonstrate cellular and interstitial protein tropism for enhanced PRIT (98). In addition to showing therapeutic promise in preclinical studies (98)(99)(100)(101), AvidinOX PRIT has been studied in clinical investigations (NCT02053324 and NCT03188328, both of which were terminated because of low recruitment).…”