The purpose of this study is to determine whether vonsetamig will safely decrease anti-HLA antibodies to allow for kidney transplantation. Vonsetamig is being studied for treatment of patients in need of kidney transplantation who are highly sensitized to HLA. The study is looking at several other research questions, including: * Side effects that may be experienced from taking vonsetamig * How vonsetamig works in the body * How much vonsetamig is present in the blood * If vonsetamig works to lower levels of antibodies to HLA
Phase 1 trials primarily test safety and dosing in a small number of participants (typically 20–100). Results do not yet speak to efficacy. FDA approval is typically many years away from this stage.
Phase 2 trials begin testing efficacy in a larger patient group (100–300). This is often where biotech binary events occur — positive Phase 2 data can significantly advance a company's pipeline narrative, while failures can be terminal for a program.
Currently recruiting: the trial is enrolling patients. A data readout is not expected until after enrollment closes and the follow-up period is complete.
Regeneron Pharmaceuticals (REGN) is the sponsoring company for this trial. BiotechSign currently grades this company D (47/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.