First-in-human study of JNJ-67571244, a CD33 × CD3 bispecific antibody, in relapsed/refractory acute myeloid leukemia and myelodysplastic syndrome

© 2024 Janssen Research and Development, LLC. Clinical and Translational Science published by Wiley Periodicals LLC on behalf of American Society for Clinical Pharmacology and Therapeutics..

Relapsed/refractory (r/r) acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) outcomes remain poor. A targeted cluster of differentiation (CD)33 × CD3 bispecific antibody, JNJ-67571244, was assessed to identify the maximum tolerated dose (MTD), recommended phase II dose (RP2D), safety and tolerability, and preliminary clinical activity in patients with r/rAML or r/rMDS. This first-in-human, open-label, phase I, dose-escalation/dose-expansion study included patients with r/rAML or r/rMDS who were ineligible for or had exhausted standard therapeutic options. JNJ-67571244 was administered intravenously or subcutaneously using step-up dosing until ≥1 discontinuation condition was met. Outcomes included safety/tolerability, preliminary clinical activity, and systemic pharmacokinetics and pharmacodynamics. The study was terminated after evaluating 10 dose-escalation cohorts (n = 68) and before starting dose-expansion. Overall, 11 (16.2%) patients experienced ≥1 dose-limiting toxicity; all experienced ≥1 treatment-emergent adverse event (TEAE; treatment related: 60 [88.2%]); and 64 (94.1%) experienced ≥1 TEAE of Grade ≥3 toxicity (treatment related: 28 [41.2%]). Although some patients had temporary disease burden reductions, no responses were seen. JNJ-67571244 administration increased multiple cytokines, which coincided with incidence of cytokine release syndrome, infusion-related reactions, and elevated liver function tests. A prolonged step-up strategy was tested to improve tolerability, though this approach did not prevent hepatotoxicity. T-cell activation following treatment suggested target engagement but did not correlate with clinical activity. Safely reaching the projected exposure level for JNJ-67571244 efficacy was not achieved, thus MTD and RP2D were not determined.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:17

Enthalten in:

Clinical and translational science - 17(2024), 3 vom: 17. März, Seite e13742

Sprache:

Englisch

Beteiligte Personen:

Narayan, Rupa [VerfasserIn]
Piérola, Ana Alfonso [VerfasserIn]
Donnellan, William B [VerfasserIn]
Yordi, Antonieta Molero [VerfasserIn]
Abdul-Hay, Maher [VerfasserIn]
Platzbecker, Uwe [VerfasserIn]
Subklewe, Marion [VerfasserIn]
Kadia, Tapan Mahendra [VerfasserIn]
Alonso-Domínguez, Juan Manuel [VerfasserIn]
McCloskey, James [VerfasserIn]
Bradford, Kathryn [VerfasserIn]
Curtis, Martin [VerfasserIn]
Daskalakis, Nikki [VerfasserIn]
Guttke, Christina [VerfasserIn]
Safer, Karim [VerfasserIn]
Hiebert, Brett [VerfasserIn]
Murphy, Joseph [VerfasserIn]
Li, Xiang [VerfasserIn]
Duchin, Ken [VerfasserIn]
Esteban, Daniel [VerfasserIn]

Links:

Volltext

Themen:

Antineoplastic Agents
CD33 protein, human
Clinical Trial, Phase I
Journal Article
Research Support, Non-U.S. Gov't
Sialic Acid Binding Ig-like Lectin 3

Anmerkungen:

Date Completed 19.03.2024

Date Revised 17.04.2024

published: Print

Citation Status MEDLINE

doi:

10.1111/cts.13742

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369846052