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Not yet recruiting NCT07538154

A Clinica Study of SCTC21C in Participants With Systemic Lupus Erythematosus

Phase I / Phase II Interventional Systemic Lupus Erythematosus (SLE)

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: SCTC21C.
Who it may be relevant to
Registry conditions: Systemic Lupus Erythematosus (SLE). Basic parameters: 18 years — 75 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Center list to be confirmed — check the primary protocol.
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Official title

A Phase Ib/II Clinical Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Efficacy of SCTC21C in Participants With Systemic Lupus Erythematosus

Overview

The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of SCTC21C in participants with systemic lupus erythematosus

Detailed description

This study contains phase Ib and phase II studies. In phase Ib study, participants will be assigned to receive sequentially higher doses of SCTC21C to determine the recomended dose of SCTC21C for the randomized dose optimation-stage. In phase 2 study, 2 dose levels will be uased. A total of 120 participants will be randomized in a 1:1:1 ration to dose 1, dose 2 or placebo groups to better understand the exposure/efficacy/toxicity relationship.

Interventions

  • Biological SCTC21C
    SCTC21C will be subcutaneously administered at a dose as specified in the respective dose-escalation cohorts. Then, the RP2D and other appropriate doses of SCTC21C will be applied for the dose-expansion cohorts

Primary outcome measures

  • Phase 1: safety and tolerability of SCTC21C [Time frame: From first dose to Week 48]
  • Phase II: efficacy of SCTC21C [Time frame: Up to Week 24]
Secondary outcome measures (6)
  • dose escalation part#SRI4/5/6/7/8 [Time frame: up to Week 48]
  • Dose- escalation # mSRI4/5/6/7/8 [Time frame: up to Week 48]
  • Dose-escalation part # BILAG [Time frame: up to Week 48]
  • Dose-escalation part # SLE flare [Time frame: Up to Week 48]
  • Dose-escalation part # immunogenicity [Time frame: up to Week 48]
  • Dose-escalation part # SCTC21C [Time frame: up to Week 48]

Eligibility criteria

Inclusion criteria

  • Aged 18-75 years;
  • Diagnosed with SLE for ≥12 weeks prior to screening, met the 2019 ACR/EULAR diagnostic criteria for SLE screening period;
  • SELENA-SLEDAI ≥8 at screening;
  • Positive immunological markers within 12 months prior to baseline;
  • Currently receiving ≥1 stable doses of standard treatment: oral corticosteroids, antimalarials, or conventional immunosuppressive drugs;
  • All male participants or females of reproductive potential must agree to use reliable contraception with their partner from signing the ICF through 5 months after the last dose of the study drug
  • Understanding of the study procedures and voluntary signing of the informed consent form

Exclusion criteria

  • Severe active or unstable lupus-related neuropsychiatric disorders;
  • Combined with active infections, malignant tumors, or other autoimmune diseases;
  • Catastrophic antiphospholipid syndrome;
  • severe lupus nephritis;
  • Study participants who received a live or attenuated vaccine within 28 days prior to baseline or during the screening period;
  • Received any investigational treatment within 30 days prior to baseline or within 5 half-lives of the investigational drug (whichever is longer);
  • Patients at high risk of severe clinical bleeding, or those requiring plasma transfusion, intravenous immunoglobulin, or acute blood products;;
  • Patients who experienced any of the following cardiovascular or cerebrovascular events within 24 weeks prior to baseline: myocardial infarction, unstable angina, ventricular arrhythmia, New York Heart Association (NYHA) Class II or higher heart failure, stroke, etc.;
  • In accordance with the protocol requirements, participants with abnormal laboratory test results;
  • Participants with positive results of viral serology, including Treponema pallidum, HIV, HCV, and HBV;
  • participants with a history of tuberculosis or latent tuberculosis infection;
  • Diagnosed with type 1 or type 2 diabetes with poor control;
  • Uncontrolled hypertension;
  • Intolerance to the study drug or contraindications, including a history of severe allergic reactions to monoclonal antibodies or any component of SCTC21C injection;
  • Required hospitalization for major surgery within 4 weeks prior to screening or within 12 weeks post-study drug administration;
  • History of solid organ or hematopoietic stem cell/bone marrow transplant, or expected to undergo transplant surgery during the study;
  • Pregnant or breastfeeding;
  • Any other condition that the investigator deems unsuitable for participation in the study

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
N/A
Model
Single group
Masking
Open label
Primary purpose
Treatment

Study locations

Center list to be confirmed — check the primary protocol.

Identifiers

NCT: NCT07538154 · SCTC21C-C201

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗