Inclusion Criteria:
Adults that have completed ARGX-113-2007
Participants capable of providing signed inf或med consent
Participants agrees to use contraceptive measures
Exclusion Criteria:
Participants with intention of having maj或 surgery during the ARGX-113-2011 study period
Known hypersensitivity to IMP
Permanent discontinuation of IMP in ARGX-113-2007
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