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Rozibafusp Alfa

Phase 2

Systemic Lupus Erythematosus (SLE) | Small molecule | Immunology |Amgen Inc.|Trials Updated: Sep 24, 2024

Rozibafusp Alfa development status

Highest phase Phase 2
Registered trials 3 across 1 sponsor since Dec 2015

Rozibafusp Alfa target and mechanism

Molecular targetTNFSF13B, ICOS
Target classInhibitor
ModalitySmall molecule

Also known as AMG 570

Success Probability

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Market & Valuation

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Trial Design

RandomizedPLACEBO_CONTROLLEDDMC
Total Trials3
Total Enrollment334

FDA Designations

No designations recorded

Rozibafusp Alfa clinical trials

Rozibafusp Alfa · 3 trials · 3 indications

Phase 2 1Phase 1 2
NCT04058028Efficacy and Safety of AMG 570 in Subjects With Active Systemic Lupus Erythematosus (SLE)Systemic Lupus Erythematosus (SLE)
COMPLETED244 Analytics
PHASE2COMPLETED
Efficacy and Safety of AMG 570 in Subjects With Active Systemic Lupus Erythematosus (SLE)
Systemic Lupus Erythematosus (SLE)Unlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With a SLE Responder Index (SRI-4) Response at Week 52
Week 52

SRI-4 response at Week 52 is defined as a ≥ 4-point decrease in the hybrid Systemic Lupus Erythematosus Disease Activity Index (hSLEDAI) score, and no new British Isles Lupus Assessment Group (BILAG) 2004 A score, no greater than 1 new BILAG B domain scores compared with baseline, and a less than 0.3-point deterioration from baseline in Physician Global Assessment (PGA) (scale 0 to 3), and no use of more than protocol allowed therapies.

Number of Participants With Treatment-emergent Adverse Events
From first dose of study drug to 24 weeks after last dose (up to 34 weeks).

An adverse event (AE) is defined as any untoward medical occurrence in a clinical trial subject, including worsening of a pre-existing medical condition and clinically significant changes in laboratory test results and physical exam findings. The event does not necessarily have a causal relationship with study treatment. AEs were graded for severity according to the Common Terminology Criteria for Adverse Events (CTCAE) Version 4, where Grade 1 = Mild, Grade 2 = Moderate, Grade 3 = Severe or medically significant, Grade 4 = Life-threatening, and Grade 5 = Death. A serious adverse event is defined as an AE that met at least 1 of the following serious criteria: * fatal; * life threatening; * required in patient hospitalization or prolongation of existing hospitalization; * resulted in persistent or significant disability/incapacity; * congenital anomaly/birth defect; * other medically important serious event. The investigator assessed whether each AE was related to study drug.

Number of Participants Who Experienced One or More Treatment-emergent Adverse Events (TEAEs)
Day 1 to Day 105

TEAEs were adverse events with an onset after the administration of study treatment. TEAEs were graded using the Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. Grade 2 Moderate; minimal, local or noninvasive intervention indicated; limited age appropriate instrumental activities of daily life (ADL). Grade 3 Severe or medically significant but not immediately life-threatening; hospitalization or prolonged hospitalization indicated; disabling; limited self care ADL. Grade 4 Life-threatening consequences; urgent interventions indicated. Serious adverse events (SAEs) were defined as meeting at least 1 of the following criteria: * Results in death (fatal) * Immediately life-threatening * Requires in-patient hospitalization or prolongation of existing hospitalization * Results in persistent or significant disability/incapacity * Is a congenital anomaly/birth defect * Other medically important serious event

Number of Participants Who Experienced a Clinically Significant Change in Physical Examinations
Baseline to Day 105

Physical examinations were performed by the investigator, designated physician, or nurse practitioner. A complete physical examination included, at a minimum, assessment of cardiovascular, respiratory, gastrointestinal and neurological systems. A brief physical examination included assessment of the skin, lungs, cardiovascular system, and abdomen (liver and spleen).

Number of Participants Who Experienced a Clinically Significant Change in Vital Signs
Baseline to Day 105

Any changes in blood pressure, body temperature, heart rate, and pulse rate that were deemed as clinically significant by the Investigator were reported.

Number of Participants Who Experienced a Clinically Significant Change in Clinical Laboratory Safety Tests
Baseline to Day 105

Laboratory safety tests included chemistry, hematology, and urinalysis parameters. Clinically significant laboratory safety tests were any events assessed as CTCAE Grade ≥3 at any post-baseline visit. Grade 3 Severe or medically significant but not immediately life-threatening; hospitalization or prolonged hospitalization indicated; disabling; limited self care ADL. Grade 4 Life-threatening consequences; urgent interventions indicated.

Number of Participants Who Experienced a Clinically Significant Change in Electrocardiograms (ECGs)
Baseline to Day 105

Any changes in ECG parameters that were deemed clinically significant by the Investigator were reported.

Secondary Endpoints

Number of Participants With a SRI-4 Response at Week 24
Week 24
Number of Participants Who Achieved a BILAG Based Combined Lupus Assessment (BICLA) Response at Week 24
Week 24
Number of Participants Who Achieved a Lupus Low Disease Activity State (LLDAS) Response at Week 52
Week 52
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Rozibafusp Alfa, Dose AEXPERIMENTALInvestigational product solution in vial
Rozibafusp Alfa, Dose BEXPERIMENTALInvestigational product solution in vial
Rozibafusp Alfa, Dose CEXPERIMENTALInvestigational product solution in vial
Placebo for Rozibafusp AlfaPLACEBO_COMPARATORPlacebo Investigational product solution in vial
Rozibafusp AlfaEXPERIMENTALParticipants will receive rozibafusp alfa administered subcutaneously once every 2 weeks for up to 10 weeks (6 doses). Rozibafusp alfa doses will range from 70 to 420 mg. Escalation to a higher dose cohort will be contingent on a review indicating that the previous dose regimen has been found to demonstrate an acceptable safety and tolerability profile at a dose level review meeting (DLRM).
PlaceboPLACEBO_COMPARATORParticipants will receive matching placebo to rozibafusp alfa administered subcutaneously once every 2 weeks for up to 10 weeks (6 doses).
AMG 570 - 7 mgEXPERIMENTALParticipants will receive a single dose 7 mg dose of AMG 570 administered subcutaneously.
AMG 570 - 21 mgEXPERIMENTALParticipants will receive a single 21 mg dose of AMG 570 administered subcutaneously.
AMG 570 - 70 mgEXPERIMENTALParticipants will receive a single 70 mg dose of AMG 570 administered subcutaneously.
AMG 570 - 140 mgEXPERIMENTALParticipants will receive a single 140 mg dose of AMG 570 administered subcutaneously.
AMG 570 - 210 mgEXPERIMENTALParticipants will receive a single 210 mg dose of AMG 570 administered subcutaneously.
AMG 570 - 420 mgEXPERIMENTALParticipants will receive a single 420 mg dose of AMG 570 administered subcutaneously.
AMG 570 - 700 mgEXPERIMENTALParticipants will receive a single 700 mg dose of AMG 570 administered subcutaneously.

Interventions

NameTypeDescription
Rozibafusp AlfaDRUGRozibafusp Alfa will be presented in 5 mL glass vial
Placebo for Rozibafusp AlfaDRUGPlacebo for Rozibafusp Alfa will be presented in 5 mL glass vial
PlaceboDRUGAdministered by subcutaneous injection once every 2 weeks.
AMG 570BIOLOGICAL7 dose levels of AMG 570 administered as single dose subcutaneous in healthy volunteers.
AMG 570 Matching PlaceboBIOLOGICALPlacebo administered as single dose subcutaneous in healthy volunteers.
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites147

Inclusion Criteria Screening Visit: * Subject has provided informed consent prior to initiation of any study-specific activities/procedures. * Age ≥ 18 years to ≤ 75 years at screening visit. * Fulfills classification criteria for SLE according to the 2019 European League Against Rheumatism (EULAR)...

Countries:United StatesArgentinaAustraliaBulgariaCanadaCzechiaFranceGermanyGreeceHong KongHungaryItalyJapanMexicoPolandPortugalRussiaSouth KoreaSpain
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Frequently asked questions about Rozibafusp Alfa

What is rozibafusp alfa used for?

Rozibafusp alfa is an investigational medicine being studied for autoimmune conditions, specifically rheumatoid arthritis and systemic lupus erythematosus (SLE). It has been evaluated in clinical trials in adults with active SLE and in adults with rheumatoid arthritis. It is not approved for any indication and remains in clinical development.

What does rozibafusp alfa target?

Rozibafusp alfa targets TNFSF13B and ICOS. It is an inhibitor that acts on both of these molecular targets. By engaging TNFSF13B and ICOS, the compound is designed to modulate immune pathways relevant to autoimmune disease, which is the basis for its study in rheumatoid arthritis and SLE.

Who is developing rozibafusp alfa?

Rozibafusp alfa is being developed by Amgen Inc., which trades under the ticker AMGN. Amgen sponsored the clinical trials of the compound, including the Phase 2 study in systemic lupus erythematosus and the Phase 1 study in rheumatoid arthritis. It was studied under the code AMG 570.

What phase is rozibafusp alfa in?

Rozibafusp alfa is in Phase 1 development according to its current development stage, though it has also been tested in a Phase 2 trial. It is investigational and has not been approved by the FDA for any indication. Both completed studies enrolled adults with autoimmune disease.

What clinical trials is rozibafusp alfa in?

Rozibafusp alfa has been studied in two completed trials. NCT04058028 was a Phase 2 trial of AMG 570 in 244 subjects with active systemic lupus erythematosus across many countries. NCT03156023 was a Phase 1 multiple ascending dose trial in 34 adults with rheumatoid arthritis in the United States and Germany.

Is rozibafusp alfa the same as AMG 570?

Yes, rozibafusp alfa is also known as AMG 570. The two names refer to the same investigational compound developed by Amgen. Clinical trial records list it under both names, including the Phase 2 SLE study and the Phase 1 rheumatoid arthritis study.