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A Study to Evaluate the Efficacy and Safety of AMG 570 in Subjects With Active Systemic Lupus Erythematosus (SLE) With Inadequate Response to Standard of Care (SOC) Therapy

A Phase 2 Dose Ranging Study to Evaluate the Efficacy and Safety of AMG 570 in Subjects With Active Systemic Lupus Erythematosus (SLE) With Inadequate Response to Standard of Care (SOC) Therapy - Safety and Efficacy of AMG 570 in Subjects With Active Systemic Lupus Erythematosus (SLE)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2019-000328-16-FR
Enrollment
300
Registered
2019-07-16
Start date
2019-12-20
Completion date
Unknown
Last updated
2025-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Active Systemic Lupus Erythematosus MedDRA version: 20.0 Level: PT Classification code 10042945 Term: Systemic lupus erythematosus System Organ Class: 10028395 - Musculoskeletal and connective tissue disorders

Interventions

Product Code: AMG 570 Pharmaceutical Form: Solution for injection INN or Proposed INN: AMG 570 Other descriptive name: AMG 570 Concentration unit: mg/ml milligram(s)/millilitre Concentration type: equ

Sponsors

Amgen Inc
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Subject has provided informed consent prior to initiation of any study-specific activities/procedures. - Age ? 18 years to ? 75 years at visit 1. - Fulfills classification criteria for SLE according to the SLICC criteria or by at least 4 of the 11 criteria of the 1997 modification of the ACR classification criteria for SLE, with at least 1 of the following being present at screening: Antinuclear antibody ? 1:80; or Elevated anti-dsDNA antibodies by the Farr assay. - SLEDAI-2K score ? 6 points with "Clinical" SLEDAI-2K score ? 4 points. The "Clinical" SLEDAI-2K is the SLEDAI-2K assessment score without the inclusion of points attributable to any urine or laboratory results including immunologic measures. For a subject whose clinical SLEDAI-2K score requires any of the following components, the subject must meet the following additional criteria: o Arthritis: If a subject qualifies for the study by scoring for arthritis on the SLEDAI-2K form, they must have ?3 swollen and/or tender joints in the hands or wrists, and the distribution should not involve the ankles, elbows, shoulders, or hips. o Alopecia: Subjects scoring for alopecia on the SLEDAI-2K should have patchy hair loss without scarring; subjects should neither have alopecia areata nor androgenic alopecia. o Oral ulcers: Subjects scoring for oral ulcers on the SLEDAI-2K should have physician documented location and appearance. o Rash: To contribute to the minimally required clinical SLEDAI-2K score, rash must have been present for a minimum of 1 week, must cover at least 5% of the body surface area if discoid and 10% of the body surface area if any other type of lupus rash. Rash must have physician documented location and appearance. - Must be taking at least 1 but not more than 2 of the following SLE treatments: mycophenolate mofetil, azathioprine, methotrexate, hydroxychloroquine, chloroquine, dapsone, or quinacrine. Treatment should be taken for ?12 weeks prior to screening and must be a stable dose for ? 8 weeks prior to screening. Patients cannot be taking two immunosuppresants (ie, mycophenolate mofetil, azathioprine, or methotrexate) simultaneously. - For subjects taking OCS, dose must be ? 20 mg/day of prednisone or OCS equivalent, and the dose must be stable ? 4 weeks prior to screening. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 280 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 20

Exclusion criteria

Exclusion criteria: - History of lupus nephritis requiring induction therapy within 1 year or active lupus nephritis (defined as any of the following: clean catch, spot urine protein creatinine ratio > 3000 mg/g at screening or active urinary sediment attributable to SLE). - History of CNS lupus within 1 year prior to screening or active CNS lupus including, but not limited to, aseptic meningitis, ataxia, CNS vasculitis, cranial neuropathy, demyelinating syndrome, optic neuritis, psychosis, seizures, or transverse myelitis. - Currently present or within 1 year prior to screening a diagnosis of any inflammatory joint or skin disease other than SLE (confirmed accurate by the PI) which would interfere with SLE disease assessment based on investigator judgement. - History of any disease other than SLE that has required treatment with oral or parenteral corticosteroids for > 2 weeks within 6 months prior to screening. - Active infection (including chronic or localized infections) for which anti-infectives were indicated within 4 weeks prior to day 1 OR presence of serious infection, defined as requiring hospitalization or intravenous anti-infectives within 8 weeks prior to day 1. - Known history of active tuberculosis. - Positive test for tuberculosis during screening defined as either positive or indeterminate QuantiFERON®-TB or T-spot test OR positive purified protein derivative (PPD) (? 5 mm of induration at 48 to 72 hours after test is placed). - Positive for hepatitis B surface antigen, hepatitis B core antibody (confirmed by hepatitis B DNA polymerase chain reaction [PCR] test) or detectable hepatitis C virus RNA by PCR (screening is generally done by hepatitis C antibody [HepCAb], followed by hepatitis C virus RNA by PCR if HepCAb is positive). A history of hepatitis B vaccination without history of hepatitis B is allowed. - Known history of HIV or positive serology for HIV antibodies at screening. - Presence of 1 or more significant concurrent medical conditions per investigator judgment, including but not limited to the following: o poorly controlled diabetes or hypertension (ie, systolic blood pressure > 170 mmHg and/or diastolic blood pressure > 100 mmHg) o symptomatic heart failure (New York Heart Association class III or IV) o myocardial infarction or unstable angina pectoris within the past 12 months prior to randomization o severe chronic pulmonary disease (eg, requiring oxygen therapy) o multiple sclerosis or any other demyelinating disease o major chronic inflammatory disease or connective tissue disease other than SLE (eg, RA, mixed connective tissue disease [MCTD], antiphospholipid antibody syndrome) - Currently receiving or had treatment with: cyclophosphamide, chlorambucil, nitrogen mustard, or any other alkylating agent ? 6 months prior to day 1 OR oral calcineurin inhibitors (eg, cyclosporine, tacrolimus, sirolimus, voclosporin) ? 4 weeks prior to day 1. - Currently receiving or had treatment with a JAK inhibitor or oral, targeted investigational agent (eg, Bruton’s tyrosine kinase inhibitor) < 3 months or 5 half-lives (whichever is longer) prior to day 1. - Prior treatment with an immune checkpoint inhibitor (eg, PD-1 inhibitor, PD-L1 inhibitor, CTLA-4 inhibitor). - Current or previous treatment for SLE with a biologic agent as follows: rituximab < 6 months prior to day 1 and undetectable B cell count; belimumab or anifrolumab < 6 months prior to day 1; abatacept < 6 months prior to day 1; or any other biologics < 5

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the efficacy of AMG 570 at week 24 as measured by the Systemic Lupus Erythematosus Responder Index (SRI-4) in subjects with SLE with inadequate response to SOC therapy;Secondary Objective: - To evaluate the efficacy of AMG 570 with oral corticosteroid (OCS)-tapering in subjects with SLE with inadequate response to SOC therapy (key secondary). - To evaluate the effect of AMG 570 on the efficacy response after 52 weeks of treatment (key secondary). - To evaluate the effect of AMG 570 on additional SLE efficacy endpoints. - To describe the effect of treatment with AMG 570 using patient reported outcome. - To characterize the safety of AMG 570. - To characterize the pharmacokinetics (PK) of AMG 570.;Primary end point(s): - SRI-4 response at week 24.;Timepoint(s) of evaluation of this end point: - Week 24

Secondary

MeasureTime frame
Secondary end point(s): - SRI-4 at week 52 with reduction of OCS to ? 7.5 mg/day by week 44 and sustained through week 52 in subjects with a baseline OCS dose ? 10 mg/day (key secondary). - SRI-4 response at week 52 (key secondary). - Tender and swollen joint count ? 50% improvement from baseline at week 12, 24, 36, and 52 in subjects with ? 6 tender and ? 6 swollen joints at baseline. - Cutaneous Lupus Erythematosus Area and Severity Index (CLASI) activity score ? 50% improvement from baseline at week 12, 24, 36, and 52 in subjects with a CLASI score ? 10 at baseline. - Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) score and change from baseline at week 12, 24, 36, 44, and 52. - Medical Outcomes Short Form 36 version 2 Questionnaire (SF36v2) score and change from baseline at week 12, 24, 36, 44, and 52. - Modified Lupus QoL score and change from baseline at week 12, 24, 36, 44, and 52. - Patient Global Assessment (PtGA) score and change from baseline at week 12, 24, 36, 44, and 52. - Adverse events, Serious adverse events and Significant changes in laboratory values and vital signs.;Timepoint(s) of evaluation of this end point: - Weeks 52 and 44 - Week 52 - Weeks 12, 24, 36 and 52 - Weeks 12, 24, 36 and 52 - Weeks 12, 24, 36, 44 and 52 - Weeks 12, 24, 36, 44 and 52 - Weeks 12, 24, 36, 44 and 52 - Weeks 12, 24, 36, 44 and 52 - Duration of the study

Countries

Australia, Austria, Bulgaria, Canada, Czech Republic, France, Germany, Greece, Hungary, Italy, Japan, Korea, Republic of, Mexico, Poland, Portugal, Russian Federation, Switzerland, United Kingdom, United States

Contacts

Public ContactMedical Information

Amgen SAS

fr-medinfo@amgen.com0969 363 363

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026