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Arumakimig

Phase 2

Coronary Heart Disease | Small molecule | Hematology |Novartis AG|Trials Updated: Oct 13, 2026

Arumakimig development status

Highest phase Phase 2
Registered trials 7 across 1 sponsor since Feb 2019

Arumakimig target and mechanism

ModalitySmall molecule

Also known as MAS825

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials5
Total Enrollment338

FDA Designations

No designations recorded

Arumakimig clinical trials

Arumakimig · 5 trials · 6 indications

Phase 2 5
NCT07748624A 52-Week Study Evaluating the Efficacy and Safety of Arumakimig (MAS825) in Participants With VEXAS Followed by Open-Label Extension (OLE) PeriodVEXAS Syndrome
RECRUITING120 Analytics
NCT07203001A Phase II Trial to Evaluate the Clinical Efficacy, Safety and Tolerability of MAS825 in Pediatric and Adult Participants With Still's DiseaseStill´s Disease
RECRUITING30 Analytics
NCT06097663A Study to Investigate the Efficacy, Safety, and Tolerability of DFV890 and MAS825 for Inflammatory Marker Reduction in Adult Participants With Coronary Heart Disease and Clonal Hematopoiesis of Indeterminate Potential (CHIP)Coronary Heart Disease
COMPLETED31 Analytics
NCT04641442Study to Evaluate the Efficacy, Safety and Tolerability of MAS825 in Patients With Monogenic IL-18 Driven Autoinflammatory Diseases, Including NLRC4-GOF, XIAP Deficiency, or CDC42 MutationsNLRC4-GOF, AIFEC (Autoinflammation With Infantile Enterocolitis), XIAP Deficiency, CDC42 Mutations
ACTIVE NOT_RECRUITING17 Analytics
NCT04382651Study of Efficacy and Safety of MAS825 in Patients With COVID-19COVID-19 Pneumonia, Impaired Respiratory Function
COMPLETED140 Analytics
PHASE2RECRUITING
A 52-Week Study Evaluating the Efficacy and Safety of Arumakimig (MAS825) in Participants With VEXAS Followed by Open-Label Extension (OLE) Period
VEXAS SyndromeUnlock trial analytics
PHASE2RECRUITING
A Phase II Trial to Evaluate the Clinical Efficacy, Safety and Tolerability of MAS825 in Pediatric and Adult Participants With Still's Disease
Still´s DiseaseUnlock trial analytics
PHASE2COMPLETED
A Study to Investigate the Efficacy, Safety, and Tolerability of DFV890 and MAS825 for Inflammatory Marker Reduction in Adult Participants With Coronary Heart Disease and Clonal Hematopoiesis of Indeterminate Potential (CHIP)
Coronary Heart DiseaseUnlock trial analytics
PHASE2ACTIVE NOT_RECRUITING
Study to Evaluate the Efficacy, Safety and Tolerability of MAS825 in Patients With Monogenic IL-18 Driven Autoinflammatory Diseases, Including NLRC4-GOF, XIAP Deficiency, or CDC42 Mutations
NLRC4-GOF, AIFEC (Autoinflammation With Infantile Enterocolitis), XIAP Deficiency, CDC42 MutationsUnlock trial analytics
PHASE2COMPLETED
Study of Efficacy and Safety of MAS825 in Patients With COVID-19
COVID-19 Pneumonia, Impaired Respiratory FunctionUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants achieving improvement of key VEXAS manifestations and oral glucocorticoid (GC) reduction at Week 52
From baseline up to Week 52

Response is defined as meeting both criteria: A) Clinical domain: In participants with clinical disease activity in any domain at baseline, complete resolution of clinical manifestations related to active disease in at least one affected domain. In participants with no clinical disease activity in any domain at baseline, continued absence of clinical manifestations in all domains at Week 52. AND B) Protocol-defined glucocorticoid reduction through 52 weeks.

Number of participants with clinical response based on one set of response criteria
Day 85

Established measure for efficacy of treatments in the rheumatologic conditions taking into account self-assessment, function and survival.

Ratio to Baseline Serum Levels of IL-6 for DFV890 Based on an Emax Model
Baseline (before first dose of study drug), 3 weeks after the start of a dosing period for DFV890 (between Day 22 and Day 85, depending on treatment sequence assignment)

Serum levels of IL-6 at 3 weeks after the start of a dosing period for DFV890. The circulating serum levels of the cytokine IL-6 were measured by a validated enzyme-linked immunosorbent assay (ELISA) assay at a qualified vendor. The Emax model selected for IL-6 analysis was a model with 2 covariates (IL-6 baseline and bodyweight) and 1 random effect.

Ratio to Baseline Serum Levels of IL-18 for DFV890 Based on an Emax Model
Baseline (before first dose of study drug), 3 weeks after the start of a dosing period for DFV890 (between Day 22 and Day 85, depending on treatment sequence assignment)

Serum levels of IL-18 at 3 weeks after the start of a dosing period for DFV890. The circulating serum levels of the cytokine IL-18 were measured by a validated enzyme-linked immunosorbent assay (ELISA) assay at a qualified vendor. The Emax model selected for IL-18 was a model with one covariate (IL-18 baseline) and 1 random effect.

Ratio to Baseline Serum Levels of IL-6 for MAS825 Based on a Traditional Linear Regression Model
Baseline (before first dose of study drug), 3 weeks after a single MAS825 dose on Day 1.

Serum level of IL-6 at Week 3 for MAS825. The circulating serum levels of the cytokine IL-6 was measured by a validated enzyme-linked immunosorbent assay (ELISA) assay at a qualified vendor. Data was analyzed with a a traditional linear regression model including treatment as a fixed categorical effect, a random intercept effect for participant, and the baseline value of the biomarker and baseline body weight as covariates.

Cohort 1: Occurrence of disease flare in patients with MAS825 treated patients compared with placebo during Period 2 assessed by Physician's Global Assessment and inflammatory markers
Period 2 (during the randomized, placebo-controlled period of up to 6 months)

To determine the efficacy of MAS825 in prevention of flares in patients with monogenic IL-18 driven autoinflammatory diseases, including NLRC4-GOF, XIAP deficiency or CDC42 mutations

APACHE II Severity of Disease Score on Day 15 or on the Day of Discharge (Whichever is Earlier)
up to Day 15

The APACHE II ("Acute Physiology And Chronic Health Evaluation II") is a severity-of-disease classification system. An integer score from 0 to 71 is computed based on several measurements; higher scores correspond to more severe disease and a higher risk of death. In practice, it is rare for any participant to accumulate more than 55 points. APACHE II score was measured on Day 15 or on the day of discharge (whichever was earlier). Participants who died on Day 15 or earlier were assigned the highest observed APACHE II score of any of the participants at any time during the trial (worst case imputation for deaths). Missing data values of the parameters required for the derivation of the APACHE II score were replaced by the last available assessment.

Secondary Endpoints

Number of participants achieving Overall Clinical Response (OCR) at Week 52
From baseline up to Week 52
Number of participants achieving resolution of VEXAS manifestations
From baseline up to Week 52
Number of participants with oral glucocorticoid reduction
From baseline up to Week 52
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ArumakimigEXPERIMENTALArumakimig from Day 1 to Week 52 during the double-blind period. Eligible participants may then continue into an open-label extension and receive arumakimig through Week 156.
PlaceboPLACEBO_COMPARATORPlacebo from Day 1 to Week 52 during the double-blind period. Eligible participants may then continue into an open-label extension and receive arumakimig through Week 156.
MAS825EXPERIMENTALExperimental drug
Treatment Sequence 1EXPERIMENTALOn Day 1, participants received the single s.c. dose of MAS825 and DFV890 oral placebo QD. Participants continued receiving DFV890 oral placebo QD until Day 84.
Treatment Sequence 2EXPERIMENTALOn Day 1, participants received the single s.c. dose of MAS825 placebo and DFV890 oral placebo QD. Participants continued receiving DFV890 oral placebo QD until Day 22 when participants started receiving DFV890 10mg QD. The dose of DFV890 was uptitrated to 25mg on Day 43 and to 100mg on Day 64.
Treatment Sequence 3EXPERIMENTALOn Day 1, participants received the single s.c. dose of MAS825 placebo and DFV890 oral placebo QD. Participants continued receiving DFV890 oral placebo QD until Day 22 when participants started receiving DFV890 25mg QD. The dose of DFV890 was uptitrated to 50mg on Day 43 and to 100mg on Day 64.
Treatment Sequence 4EXPERIMENTALOn Day 1, participants received the single s.c. dose of MAS825 placebo and DFV890 10 mg QD. Participants continued receiving DFV890 10 mg QD until Day 22 when the dose of DFV890 was uptitrated to 25mg QD. On Day 43 the dose of DFV890 was uptitrated to 50mg and on Day 64 to 100mg.
Treatment Sequence 5PLACEBO_COMPARATOROn Day 1, participants received the single s.c. dose of MAS825 placebo and DFV890 oral placebo QD. Participants continued receiving DFV890 oral placebo QD until Day 84.
MAS825 + SoCEXPERIMENTALSingle dose of MAS825 10 mg/kg by intravenous infusion in addition to SoC
Placebo + SoCPLACEBO_COMPARATORSingle dose of matching Placebo by intravenous infusion in addition to SoC

Interventions

NameTypeDescription
ArumakimigDRUGArumakimig Injection
PlaceboDRUGPlacebo Injection
Oral glucocorticoidsDRUGBackground therapy with glucocorticoids. After the first 2 weeks of the study, participants may begin with glucocorticoid tapering depending on the disease status and the Investigator's judgement.
MAS825DRUGExperimental drug
MAS825 PlaceboDRUGMAS825 placebo single dose
DFV890DRUGOral tablet of DFV890 active once daily
DFV890 placeboDRUGOral tablet of DFV890 placebo once daily
Standard of Care (SoC)DRUGSoC included a variety of supportive therapies that ranged from the administration of supplementary oxygen to full intensive care support, alongside the use of antiviral treatment, convalescent plasma, corticosteroids, antibiotics or other agents.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: * Male and female participants aged ≥18 years at screening. * Somatic mutation in UBA1 gene known to be associated with VEXAS. * Participants must have at least two manifestations of VEXAS at screening or in the past 6 months. * Participants must be able to start treatment for P...

Countries:JapanUnited StatesCanadaFranceGermanyItalyNetherlandsSpainTurkey (Türkiye)CzechiaUnited Kingdom
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Recent Changes (Last 90 Days)

LOWOct 13, 2026NCT07748624lastUpdatePostDate: changed
LOWOct 13, 2026NCT07748624lastUpdatePostDate: changed
LOWOct 9, 2026NCT04641442lastUpdatePostDate: changed
LOWOct 9, 2026NCT04641442lastUpdatePostDate: changed
LOWSep 29, 2026NCT07748624Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 29, 2026NCT07748624Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 25, 2026NCT07203001lastUpdatePostDate: changed
LOWSep 25, 2026NCT07203001lastUpdatePostDate: changed
LOWSep 9, 2026NCT07203001lastUpdatePostDate: changed
LOWSep 9, 2026NCT07203001lastUpdatePostDate: changed
LOWAug 20, 2026NCT07203001lastUpdatePostDate: changed
LOWAug 20, 2026NCT07203001lastUpdatePostDate: changed
LOWAug 20, 2026NCT07203001lastUpdatePostDate: changed
LOWAug 20, 2026NCT07203001lastUpdatePostDate: changed
LOWAug 6, 2026NCT07748624NEW_TRIAL: changed
LOWAug 6, 2026NCT07748624NEW_TRIAL: changed
MEDIUMJul 31, 2026NCT04641442Completion: 2032-04-07 → 2032-11-23
MEDIUMJul 31, 2026NCT04641442Completion: 2032-04-07 → 2032-11-23

Frequently asked questions about Arumakimig

What is Arumakimig used for?

Arumakimig is an investigational medicine being studied for several inflammatory and immune conditions, including VEXAS syndrome, Still's disease, monogenic IL-18 driven autoinflammatory diseases such as NLRC4-GOF, XIAP deficiency and CDC42 mutations, and coronary heart disease with clonal hematopoiesis of indeterminate potential. It is also being evaluated in COVID-19 pneumonia with impaired respiratory function.

Who makes Arumakimig?

Arumakimig is developed by Novartis AG, which trades under the ticker NVS. Novartis is running the clinical development program for the drug across its current Phase 2 studies.

What phase is Arumakimig in?

Arumakimig is in Phase 2 clinical development. It has not been approved by the FDA, and it remains an investigational drug being evaluated in clinical trials.

What clinical trials is Arumakimig in?

Arumakimig is being studied in several Phase 2 trials, including NCT07748624 in VEXAS syndrome, NCT07203001 in Still's disease, NCT06097663 in coronary heart disease with CHIP, and NCT04641442 in monogenic IL-18 driven autoinflammatory diseases. The VEXAS and Still's disease trials are currently recruiting.

Is Arumakimig the same as MAS825?

Yes, Arumakimig is also known as MAS825. Both names refer to the same investigational drug developed by Novartis AG.