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A Study to Assess Effectiveness and Safety of Efgartigimod in Chinese Patients with Lupus Nephritis (ZL-1103-013)

Phase 2
Active, not recruiting
Conditions
Lupus Nephritis
Interventions
Biological: efgartigimod IV
Other: Placebo
Registration Number
NCT05810948
Lead Sponsor
argenx
Brief Summary

To evaluate the efficacy and safety of efgartigimod IV in Chinese patients with active lupus nephritis (LN)

Detailed Description

To evaluate the efficacy and safety of efgartigimod IV in Chinese patients with active lupus nephritis (LN). The study comprises an approximate 4-week screening period, a 24-week treatment period, and an 8-week follow-up period.

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
73
Inclusion Criteria
  • Aged ≥18 years when signing the informed consent form (ICF)
  • Capable of providing signed informed consent, and complying with protocol requirements
  • Diagnosis of SLE according to the Systemic Lupus Erythematosus International Collaborating Clinic (SLICC) 2012 classification criteria
  • Active, proliferative LN Class III or IV [excluding Class III (C), IV-S (C), and IV-G (C)], either with or without the presence of Class V using the 2003 International Society of Nephrology (ISN)/Renal Pathology Society (RPS) criteria, proven by kidney biopsy within 6 months before randomization and confirmed by the central biopsy reading group
  • Require LN induction therapy (glucocorticoids and MMF/MPA) based on investigator's clinical judgment. Induction therapy may begin before screening but should be initiated within 60 days before randomization
  • Agree to use contraceptives consistent with local regulations. Full inclusion criteria can be found in the protocol
Exclusion Criteria
  • Active or chronic infection requiring treatment
  • Any evidence of central nervous system lupus (including but not limited to seizures, psychosis, organic brain syndrome, cerebrovascular accident, cerebritis, or CNS vasculitis)
  • Currently on renal dialysis or expected to require dialysis during study period
  • Previous kidney transplantation or planned transplantation during study period
  • History of malignancy unless deemed cured by adequate treatment with no evidence of recurrence for ≥3 years before randomization. The following cancers are not exclusionary: basal cell or squamous cell skin cancer; carcinoma in situ of the cervix; carcinoma in situ of the breast; incidental histological finding of prostate cancer
  • Heart failure due to Systemic Lupus Erythematodes, or any other severe cardiovascular involvement with safety concerns according to investigator's judgment
  • Any other known autoimmune disease that would interfere with an accurate assessment of clinical symptoms of SLE/LN or put the participant at undue risk
  • Previously failed treatment with MMF or any form of mycophenolate-based induction therapy, based on the investigator's opinion
  • Use of complementary therapies, including Traditional Chinese Medicine, herbs, or procedure (eg, acupuncture) that can potentially interfere with the efficacy and safety of participants as assessed by the investigator
  • SARS-CoV-2 antigen-based positive test at screening. The test is required regardless of whether the participant has been vaccinated
  • Known hypersensitivity or contraindication to efgartigimod, any excipient of the IMP, or SoC medication used in the study
  • In the opinion of the investigator, current or history of (ie, within 12 months of randomization) alcohol, drug, or medication abuse
  • Pregnant or lactating females and those who intend to become pregnant during study participation
  • Any conditions or circumstances that in the opinion of the investigator may make the participant unsuitable for the study

The full list of criteria can be found in the protocol.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
efgartigimod IVefgartigimod IVPatients receiving intravenous (IV) infusions of efgartigimod
PlaceboPlaceboPatients receiving intravenous (IV) infusions of placebo
Primary Outcome Measures
NameTimeMethod
Change from baseline to week 24 in urine protein creatinine ratio (UPCR)up to 24 weeks
Secondary Outcome Measures
NameTimeMethod
Change from baseline to week 24 in estimated glomerular filtration rate (eGFR)up to 24 weeks
Change from baseline to week 24 in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI)-2K scoreup to 24 weeks
Change from baseline to week 24 in the dosage of glucocorticoidsup to 24 weeks
Treatment failure rate during treatment periodup to 24 weeks
Proportion of participants achieving modified complete renal response (mCRR) at week 24up to 24 weeks
Efgartigimod serum concentration-time profileup to 32 weeks
Changes from baseline in levels of total IgGup to 32 weeks
Incidence of ADA against efgartigimodup to 32 weeks
Median changes in concentration from baseline over time in biomarkers (Anti-dsDNA, C3, C4 and CH50)up to 32 weeks

(all have the same measuring units)

Change from baseline to week 24 in EuroQoL 5-Dimension 5-Level (EQ-5D-5L) scoreUp to 24 weeks
Proportion of participants achieving complete renal response (CRR) at week 24up to 24 weeks
Time to complete renal response (CRR)up to 32 weeks
Proportion of participants achieving partial renal response at week 24up to 24 weeks
Time to partial renal response (PRR)up to 24 weeks

Trial Locations

Locations (31)

Shandong Provincial Hospital Affiliated to Shandong First Medical University

🇨🇳

Jinan, China

Affiliated Hospital of Jining Medical University

🇨🇳

Jining, China

Liu Zhou Works Hospital

🇨🇳

Liuzhou, China

Jiangxi Provincial People's Hospital

🇨🇳

Nanchang, China

The First Affiliated Hospital of Zhengzhou University

🇨🇳

Zhengzhou, China

Peking University Third Hospital

🇨🇳

Beijing, China

Peking University People's Hospital

🇨🇳

Beijing, China

Hunan Provincial People's Hospital

🇨🇳

Changsha, China

The Second Affiliated Hospital of Chongqing Medical University

🇨🇳

Chongqing, China

Fujian Medical University Union Hospital

🇨🇳

Fujian, China

Guangdong Provincial People's Hospital

🇨🇳

Guangzhou, China

Sun Yat-sen Memorial Hospital, Sun Yat-sen University

🇨🇳

Guangzhou, China

The First Affiliated Hospital,Sun Yat-sen University

🇨🇳

Guanzhou, China

The First Affiliated Hospital, Zhejiang University

🇨🇳

Hangzhou, China

First Affiliated Hospital of University of South China

🇨🇳

Hengyang, China

The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University

🇨🇳

Huainan, China

Jieyang People's Hospital

🇨🇳

Jieyang, China

The First Affiliated Hospital of Nanchang University

🇨🇳

Nanchang, China

Jiangsu Province Hospital

🇨🇳

Nanjing, China

Zhongda Hospital Southeast University

🇨🇳

Nanjing, China

The People's Hospital of Guangxi Zhuang Autonomous Region

🇨🇳

Nanning, China

Huashan Hospital Fudan University

🇨🇳

Shanghai, China

ShengJing Hospital of China Medical University

🇨🇳

Shenyang, China

Shenzhen People's Hospital

🇨🇳

Shenzhen, China

The First Hospital of Hebei Medical University

🇨🇳

Shijia Zhuang, China

The Second Hospital of Tianjin Medical University

🇨🇳

Tianjin, China

Renmin Hospital of Wuhan University

🇨🇳

Wuhan, China

Wuxi People's Hospital

🇨🇳

Wuxi, China

Shaanxi Provincial Hospital of Chinese Medicine

🇨🇳

Xi'an, China

The First Affiliated Hospital of Xiamen University

🇨🇳

Xiamen, China

Henan Provincial People's Hospital

🇨🇳

Zhengzhou, China

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