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empasiprubart AI

Phase 1

Healthy Volunteers | Monoclonal antibody | Other |argenx SE|Last Updated: May 28, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedCONTROLLED
Total Trials1
Total Enrollment130
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07612020A Study to Assess the Absolute Bioavailability of Empasiprubart SC Administered With an Autoinjector and the Pharmacokinetic Noninferiority of Empasiprubart SC Versus Intravenous (IV) in Healthy Adult ParticipantsPHASE1 RECRUITING 130Mar 16, 2026Oct 1, 2027May 28, 20261 Canada
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Study Endpoints
Primary Endpoints
aBA via abdomen as assessed by AUC0-inf SC versus AUC0-inf IV
Up to 33 weeks

aBA = absolute bioavailability; AUC0-inf=area under the concentration-time curve from time 0 to infinity; PK = pharmacokinetics; SC = subcutaneous, IV = intravenous

aBA via thigh as assessed by AUC0-inf SC versus AUC0-inf IV
Up to 33 weeks

aBA = absolute bioavailability; AUC0-inf=area under the concentration-time curve from time 0 to infinity; PK = pharmacokinetics; SC = subcutaneous, IV = intravenous

Ctrough at week 8
Up to 8 weeks

Ctrough = trough concentration

Secondary Endpoints
empasiprubart Cmax
Up to 33 weeks
AUCw4-8 over time
Up to 39 weeks
Cavg over time
Up to 39 weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingSINGLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Open-label treatment period (part A): empasiprubart SC AI (via abdomen)EXPERIMENTALParticipants randomized to receive empasiprubart SC AI via abdomen.
Open-label treatment period (part A): empasiprubart SC AI (via thigh)EXPERIMENTALParticipants randomized to receive empasiprubart SC AI via thigh.
Open-label treatment period (part A): empasiprubart IVEXPERIMENTALParticipants randomized to receive empasiprubart IV.
Open-label treatment period (part B): empasiprubart SC AIEXPERIMENTALParticipants randomized to receive empasiprubart IV and empasiprubart SC AI.
Open-label treatment period (part B): empasiprubart IVEXPERIMENTALParticipants randomized to receive empasiprubart IV.
Interventions
NameTypeDescription
empasiprubart SC AIBIOLOGICALSubcutaneous injection of empasiprubart via Autoinjector (AI).
empasiprubart IVBIOLOGICALIntravenous infusion of empasiprubart
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Is at least the local legal age of consent and aged 18 to 65 years, inclusive, when signing the ICF. * Has a body weight between 50 and 120 kg and a BMI between 18 and 35 kg/m2, inclusive. Exclusion Criteria: * Has any current or past clinically meaningful medical or psychia...

Countries:Canada
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Recent Changes (Last 90 Days)
LOWMay 29, 2026NCT07612020NEW_TRIAL: changed
LOWMay 29, 2026NCT07612020NEW_TRIAL: changed
LOWMay 29, 2026NCT07612020NEW_TRIAL: changed