Study of YK012 in Moderate to Severe Systemic Lupus Erythematosus

Launched by EXCYTE BIOPHARMA LTD · May 30, 2025

Keywords

ClinConnect Summary

This clinical trial is looking at a new treatment called YK012 for people with moderate to severe systemic lupus erythematosus (SLE), which is an autoimmune disease that can cause inflammation and damage to various parts of the body. The main goals of the study are to understand how safe YK012 is, how well it works, and how it is processed in the body. The trial is currently not recruiting participants, and it will include adults aged 18 to 65 who have been diagnosed with SLE for at least six months and have certain lab test results indicating active disease.

To participate in the trial, individuals must meet specific criteria, such as having a confirmed diagnosis of SLE, showing high disease activity, and being on stable treatment for their condition. It's important to note that some people may not be eligible, including those with certain allergies, other autoimmune diseases, or recent treatments that could interfere with the study. Participants will be closely monitored throughout the trial, which will involve scheduled visits and treatments. Overall, this study aims to explore a promising new option for managing SLE symptoms and improving patients' quality of life.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Aged 18 to 75 years (inclusive) at screening, regardless of sex
• • Meet the 2019 European League Against Rheumatism (EULAR)/American College of Rheumatology (ACR) classification criteria for SLE, with a confirmed SLE diagnosis for at least 24 weeks at screening
• • Positive for anti-dsDNA antibody and/or antinuclear antibody (ANA) and/or anti-Smith antibody at screening, as determined using the local laboratory's reference ranges at the study site
• • Medium to high disease activity at screening, defined as: Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score ≥7
• • Receiving stable background therapy at screening
• • Capable of understanding and voluntarily participating in this clinical trial, having provided written informed consent, and able to comply with scheduled visits, treatments, examinations, and other study procedures.
• Exclusion Criteria:
• • Known allergy to monoclonal antibodies or exogenous human immunoglobulins, or hypersensitivity to the investigational drug or any of its components
• • Received any anti-CD19/CD20 therapy or any B-cell depleting agents within 6 months prior to enrollment, or B-cell stimulatory factor inhibitors within 3 months or 5 half-lives prior to enrollment
• • Received TNF inhibitors, interleukin receptor blockers, other small molecules or biologics within 3 months or 5 half-lives prior to enrollment
• • Received intravenous immunoglobulins or plasmapheresis within 3 months prior to enrollment
• • Used traditional Chinese medicines/herbal preparations for SLE treatment containing within 2 weeks prior to enrollment
• • Received live or attenuated vaccines within 1 month prior to enrollment
• • Has other autoimmune diseases, inflammatory joint diseases, or skin disorders (other than SLE) that may interfere with disease activity assessment
• • History of malignancy within 5 years before screening, except for cured cases with no recurrence for at least 5 years, such as basal cell or squamous cell skin cancer, cervical carcinoma in situ, ductal carcinoma in situ of breast, or papillary thyroid cancer
• • Clinically significant cardiovascular/cerebrovascular diseases within 6 months prior to screening
• • Presence of QTcF interval prolongation on electrocardiogram (ECG)
• • Presence of poorly controlled hypertension at screening
• • History of non-SLE conditions requiring oral/intravenous/intramuscular/subcutaneous corticosteroid therapy (\>2 weeks) within 6 months prior to enrollment
• • Active tuberculosis at screening or untreated latent tuberculosis
• • History of solid organ or bone marrow transplantation
• • Presence of active infections
• • Lupus nephritis requiring protocol-prohibited medications as assessed by the investigator
• • Uncontrolled lupus crisis within 8 weeks prior to screening
• • History of central nervous system (CNS) disorders
• • Presence of clinically unstable or uncontrolled medical conditions at screening
• • Presence of clinically significant abnormal laboratory test results
• • Presence of active viral infections (e.g., hepatitis B, hepatitis C, HIV, or active syphilis)
• • Had major surgery within 4 weeks prior to enrollment or planned during study;
• • Participation in other interventional clinical trials within 4 weeks prior to enrollment
• • Pregnant or lactating women, or individuals with pregnancy plans during the study and within a specified period after treatment who are unwilling to use effective contraception
• • Other conditions deemed by investigators to preclude study participation.