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Tarperprumig

Phase 2

Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis | Small molecule | Immunology |AstraZeneca PLC|Trials Updated: Jun 16, 2026

Tarperprumig development status

Highest phase Phase 2
Registered trials 2 across 1 sponsor since Oct 2022

Tarperprumig target and mechanism

ModalitySmall molecule

Also known as ALXN1820

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials2
Total Enrollment141

FDA Designations

No designations recorded

Tarperprumig clinical trials

Tarperprumig · 2 trials · 2 indications

Phase 2 1Phase 1 1
NCT07160608Safety and Efficacy of Tarperprumig in Adult Participants With Anti-Neutrophil Cytoplasmic Antibody (ANCA)-Associated VasculitisAnti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis
RECRUITING75 Analytics
PHASE2RECRUITING
Safety and Efficacy of Tarperprumig in Adult Participants With Anti-Neutrophil Cytoplasmic Antibody (ANCA)-Associated Vasculitis
Anti-Neutrophil Cytoplasmic Antibody-Associated VasculitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Treatment-emergent Adverse Events (TEAEs)
Baseline through Week 70
Number of Participants With Treatment-related Adverse Events (TEAEs) For ALXN1820 SC And ALXN1820 IV
Cohorts 1 to 6: Baseline up to Day 127; Cohorts 8 to 9: Baseline up to Day 155

An adverse event (AE) was defined as any unfavorable and unintended sign (for example, including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product or procedure, whether or not considered related to the medicinal product or procedure, which occurred during the course of the clinical study. TEAEs were defined as any AEs that commenced after the start of administration of study intervention. Serious AEs (SAEs) were defined as any untoward medical occurrence that met at least 1 of the following serious criteria: resulted in death, was life-threatening, required in-patient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect, other medically important serious event. A summary of all SAEs and Other AEs (nonserious) regardless of causality is located in the 'Reported AEs' Section.

Secondary Endpoints

Number of Participants Achieving Disease Remission at Week 26
Week 26
Number of Participants Achieving Sustained Remission at Week 52
Week 52
Number of Participants Achieving a Birmingham Vasculitis Activity Score (BVAS) of 0
Baseline through Week 52
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Tarperprumig Group 1EXPERIMENTALParticipants will be administered tarperprumig dose regimen #1 or dose regimen #2.
Tarperprumig Group 2EXPERIMENTALParticipants will be administered tarperprumig dose regimen #1 or dose regimen #2.
Placebo Group 3EXPERIMENTALParticipants will be administered placebo.
ALXN1820EXPERIMENTALParticipants will receive ALXN1820 SC or ALXN1820 IV according to their assigned cohort. ALXN1820 SC will be evaluated in single and multiple ascending doses while ALXN1820 IV will be evaluated in a single dose cohort only.
PlaceboPLACEBO_COMPARATORParticipants will receive Placebo SC or Placebo IV according to their assigned cohort.

Interventions

NameTypeDescription
PlaceboDRUGParticipants will receive placebo.
TarperprumigDRUGParticipants will receive tarperprumig.
ALXN1820 SCDRUGALXN1820 SC will be administered as a manual SC push or SC infusion via a syringe pump. Doses will range from 12.5 milligrams (mg) to a maximum of 2250 mg. Multiple dosing duration will range from 3 to 5 weeks.
ALXN1820 IVDRUGALXN1820 IV (450 mg) will be administered as an IV infusion.
Placebo SCDRUGPlacebo SC will be administered as a manual SC push or SC infusion via a syringe pump.
Placebo IVDRUGPlacebo IV will be administered as an IV infusion.
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Eligibility Criteria

Age Range18 Years to 80 Years
SexALL
Healthy VolunteersNo
Study Sites78

Inclusion Criteria: * Newly diagnosed or relapsing ANCA-associated vasculitis, GPA and MPA subtypes consistent with the 2022 ACR/EULAR classification criteria for GPA and MPA for whom treatment with rituximab or cyclophosphamide is considered. * Positive test for antibodies to either PR3-ANCA or MP...

Countries:ArgentinaAustraliaBrazilCanadaChinaFranceGermanyItalyPolandSouth KoreaSpainTaiwanTurkey (Türkiye)United Kingdom
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Frequently asked questions about Tarperprumig

What is Tarperprumig used for?

Tarperprumig is an investigational small molecule being developed for the treatment of Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis (AAV), a group of autoimmune diseases characterized by inflammation of blood vessels. It is currently in Phase 2 clinical development and has not been approved by regulatory authorities.

Who makes Tarperprumig?

Tarperprumig is being developed by AstraZeneca PLC, a multinational biopharmaceutical company listed on the stock exchange under the ticker symbol AZN. The company is conducting a Phase 2 clinical trial to evaluate the safety and efficacy of Tarperprumig in adult participants with ANCA-associated vasculitis.

What phase is Tarperprumig in?

Tarperprumig is currently in Phase 2 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory agencies such as the FDA. The ongoing Phase 2 trial is recruiting participants and is designed to assess the safety and efficacy of the drug in patients with ANCA-associated vasculitis.

What clinical trials is Tarperprumig in?

Tarperprumig is being studied in a Phase 2 clinical trial registered as NCT07160608, titled "Safety and Efficacy of Tarperprumig in Adult Participants With Anti-Neutrophil Cytoplasmic Antibody (ANCA)-Associated Vasculitis." The trial is currently recruiting and aims to enroll 75 participants across multiple countries, including the United States, Canada, and European nations.

Is Tarperprumig FDA approved?

No, Tarperprumig is not FDA approved. It is an investigational drug currently in Phase 2 clinical trials. The ongoing study is evaluating its safety and efficacy in patients with ANCA-associated vasculitis, but it has not yet received marketing approval from the FDA or any other regulatory authority.

How does Tarperprumig work?

Tarperprumig is a small molecule therapeutic being developed for ANCA-associated vasculitis. However, its specific molecular target or mechanism of action has not been disclosed in available information. The drug is being evaluated in a randomized, double-blind, controlled Phase 2 trial to determine its safety and efficacy in treating this condition.