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Clinical Trial Summary

This is a prospective, multicenter, open label extension (OLE) trial on the efficacy, safety, patient outcome measures, tolerability, immunogenicity, PK and PD of efgartigimod PH20 SC in adult PV or PF participants, who participated in antecedent trial ARGX-113-1904. This trial provides extension of efgartigimod PH20 SC treatment and retreatment options for participants who have been randomized to efgartigimod PH20 SC treatment arm in the trial ARGX-113-1904, and the first treatment of efgartigimod PH20 SC and retreatment options for participants who had been randomized to placebo arm in trial ARGX-113-1904. Trial ARGX-113-1905 evaluates ability to (further) taper prednisone therapy and achieve Clinical Remission (CR) off therapy (CRoff), the ability to achieve CR and CR on minimal therapy (CRmin) for participants who had not yet achieved CRmin, and the ability to treat flare; and assess patient outcome measures and the safety, PD, PK and immunogenicity of efgartigimod PH20 SC over the duration of trial. Study duration: Up to 60 weeks for participants who receive IMP administration up to 52 weeks and with a follow-up period of 8 weeks after the last IMP administration


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT04598477
Study type Interventional
Source argenx
Contact
Status Terminated
Phase Phase 3
Start date July 15, 2021
Completion date March 25, 2024

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