Immune Cell Subsets in SLE Patients Treated with Telitacicept

Changes of Immune Cell Subsets During the Treatment of Lupus with Telitacicept

This study is a single-center cohort study. Patients with SLE who met the inclusion criteria were treated with tetanercept 160 mg once a week for a total of 24 weeks, and the clinical and laboratory indicators were collected before treatment, at the 4th week, at the 12th week, and at the 24th week, and blood samples were collected for the detection of immune cell subsets.

Study Overview

• Status: Active, not recruiting
• Conditions: Systemic Lupus Erythematosus (SLE)
• Intervention / Treatment: Biological: Telitacicept 160mg

• Study Type: Interventional
• Enrollment (Estimated): 50
• Phase: Phase 4

Contacts and Locations

Study Locations

• China
  • Zhejiang
    • Hangzhou, Zhejiang, China, 310005
      • The Second Affiliated Hospital, Zhejiang University School of Medicine

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Patients with confirmed active SLE, who meet at least 4 of the 11 criteria for SLE revised by the United States College of Rheumatology in 1997 at the time of diagnosis;
2. Age 18~65 years old, male or female, gender ratio is not limited;
3. SLEDAI -2k score ≥ 8 points during the screening period;
4. ANA positivity as defined by a clear reference range within half a year;
5. Maintain a stable standard treatment regimen for at least 28 days prior to the date of the first dose of trial drug. Standard regimen refers to stable use of any of the following (alone or in combination): corticosteroids, antimalarials, nonsteroidal anti-inflammatory drugs (NSAIDs), other immunosuppressants or immunomodulators including azathioprine, mycophenolate (including mycophenolate mofetil, mycophenolate mofetil), cyclophosphamide, methotrexate, leflunomide, tacrolimus, and cyclosporine.
6. Understand the purpose and trial steps of this trial, and voluntarily sign a written informed consent form.

Exclusion Criteria:

1. Renal disease: severe lupus nephritis (defined as urine protein >6g/24 hours or serum creatinine >2.5mg/dL or 221μmol/L) within 8 weeks prior to randomization, or requiring active nephritis with protocol-prohibited medications, or requiring hemodialysis or receiving prednisone ≥100mg/d or equivalent corticosteroid therapy for ≥ 14 days;
2. Neurological diseases: those with central nervous system diseases caused by SLE or non-SLE within 8 weeks prior to randomization, including but not limited to epilepsy, psychosis, organic encephalopathy syndrome, cerebrovascular accident, encephalitis, central nervous system vasculitis, etc.;
3. Those with obvious abnormalities in laboratory examinations: a. ALT or AST≥2×ULN (upper limit of normal); b. Endogenous creatinine clearance < 30 mL/min; c. White blood cell count < 2.5×10 9/L; d. Hemoglobin <85g/L; Platelet count < 50×10 9/L;
4. Current active hepatitis or previous severe liver lesions or medical history. Hepatitis B: excludes patients who are HBsAg positive. Patients who are HBsAg negative but HBcAb positive will need to be accounted for by HBV-DNA testing: if HBV-DNA is positive, the patient is excluded from participating in the study; If HBV-DNA is negative, the patient can participate in the study. Hepatitis C: excludes patients who are positive for hepatitis C antibodies;
5. Immunodeficiency or active infection (such as herpes zoster, HIV virus infection, active tuberculosis, etc.) during the screening period;
6. Patients with other connective tissue diseases, history of malignancy, or active/recurrent peptic ulcer;
7. Pregnant women, lactating women, and males or females with birth plans during the trial;
8. Those who have received a live vaccine within 28 days prior to randomization;
9. Participation in any clinical trial within 28 days prior to randomization or within 5 times the half-life of the investigational drug enrolled in the clinical trial (whichever is longer);
10. Use of B-cell-targeted therapy agents such as rituximab, epacizumab or belimumab, etc., within 12 months prior to randomization;
11. Use of tumor necrosis factor inhibitors, interleukin receptor blockers within 12 months prior to randomization;
12. Those who have been treated with intravenous immunoglobulin (IVIG), prednisone ≥ 100mg/d, or equivalent corticosteroids for ≥ 14 days within 28 days prior to randomization, and those who have undergone plasmapheresis;
13. Use of interleukin-2, thalidomide, tripterygium wilfordii and tripterygium wilfordii-containing traditional Chinese medicine preparations within 28 days prior to randomization;
14. Allergic reactions: history of allergy to human-derived biological products;
15. Mentally ill persons with depression or suicidal thoughts;
16. Those who are considered inappropriate by the investigator to participate in this trial.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Diagnostic
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Participant Group; SLE patients treated with Telitacicept	Biological: Telitacicept 160mg; Telitacicept 160mg weekly for 24 weeks, and peripheral subtypes of immune cells will be measured at week 0, 4, 12, and 24.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Changes of immune cell subsets after treatment	24 weeks

Secondary Outcome Measures

Outcome Measure	Time Frame
SLE responder index (SRI) -4	24 weeks

Collaborators and Investigators

• Sponsor: Second Affiliated Hospital, School of Medicine, Zhejiang University

Study record dates

Study Major Dates

• Study Start (Actual): October 11, 2024
• Primary Completion (Estimated): October 31, 2026
• Study Completion (Estimated): October 31, 2027

Study Registration Dates

• First Submitted: October 11, 2024
• First Submitted That Met QC Criteria: November 6, 2024
• First Posted (Estimated): November 7, 2024

Study Record Updates

• Last Update Posted (Estimated): November 7, 2024
• Last Update Submitted That Met QC Criteria: November 6, 2024
• Last Verified: November 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Connective Tissue Diseases; Autoimmune Diseases; Immune System Diseases; Lupus Erythematosus, Systemic
• Other Study ID Numbers: 2024-1010

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No