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empasiprubart AI

Phase 1

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

Target and mechanism

ModalityMonoclonal antibody

Also known as empasiprubart SC AI

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment130

FDA Designations

No designations recorded

Clinical trial landscape

empasiprubart AI · 1 trial · 1 indication

Phase 1 1
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 ParticipantsHealthy Volunteers
RECRUITING130 Analytics
PHASE1RECRUITING
A 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 Participants
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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 to 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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Frequently asked questions about empasiprubart AI

What is empasiprubart AI used for?

Empasiprubart AI is an investigational monoclonal antibody being studied in healthy volunteers. It is currently in Phase 1 clinical development, with an active trial assessing its absolute bioavailability and pharmacokinetic noninferiority when given subcutaneously with an autoinjector versus intravenously. It is not approved for any condition.

Who makes empasiprubart AI?

Empasiprubart AI is being developed by argenx SE, a biopharmaceutical company traded on the stock exchange under the ticker ARGX. The company is conducting a Phase 1 clinical trial of the drug in healthy adult participants.

What phase is empasiprubart AI in?

Empasiprubart AI is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities. The ongoing Phase 1 trial is currently recruiting participants and is designed to evaluate the drug's bioavailability and pharmacokinetics in healthy volunteers.

What clinical trials is empasiprubart AI in?

Empasiprubart AI is being studied in one active Phase 1 clinical trial, registered as NCT07612020. The trial is recruiting 130 healthy adult participants in Canada and is assessing the absolute bioavailability of empasiprubart SC administered with an autoinjector and the pharmacokinetic noninferiority of subcutaneous versus intravenous administration.

Is empasiprubart AI the same as empasiprubart SC AI?

Yes, empasiprubart AI is also known as empasiprubart SC AI. The alternative name reflects the subcutaneous route of administration being studied in the ongoing Phase 1 clinical trial, which compares subcutaneous delivery via an autoinjector with intravenous delivery.

How is empasiprubart AI administered in clinical trials?

In the ongoing Phase 1 trial, empasiprubart AI is administered both subcutaneously, using an autoinjector, and intravenously. The study is designed to compare the absolute bioavailability and pharmacokinetic noninferiority of these two routes of administration in healthy adult participants.