Evaluate the Efficacy and Safety of NTQ5082 Capsules in Patients With Primary IgA Nephropathy (NCT06982040) | Clinical Trial Compass
Not Yet RecruitingPhase 2
Evaluate the Efficacy and Safety of NTQ5082 Capsules in Patients With Primary IgA Nephropathy
80 participantsStarted 2025-05
Plain-language summary
NTQ5082 is a small molecule inhibitor of complement factor B (CFB) that inhibits the enzymatic activity of CFB, thereby blocking the alternative pathway of the complement activation cascade. It is being clinically developed for the treatment of primary IgA nephropathy The main objectives of the study were to assess the efficacy and safety of NTQ5082 capsules in the treatment of patients with primary IgA nephropathy.
Who can participate
Age range18 Years
SexALL
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Inclusion criteria
✓. Age ≥18 years, male or female.
✓. Body weight ≥40 kg, BMI between 15 to 38 kg/m².
✓. Diagnosis of primary IgA nephropathy confirmed by renal biopsy within 8 years before screening or during screening.
✓. 24-hour urine protein excretion (24h-UPE) ≥0.75 g/24h, or first morning void (FMV) urine protein-to-creatinine ratio (UPCR) ≥0.8 g/g.
✓. Previously vaccinated with ACYW135 meningococcal polysaccharide vaccine and pneumococcal vaccine.
✓. Received renin-angiotensin system (RAS) inhibitor therapy for at least 12 weeks prior to randomization, with stable treatment at the maximum recommended dose or maximum tolerated dose of RAS inhibitors for at least 4 weeks prior to randomization.
✓. Agreement to use at least one effective contraceptive method with partners during sexual activity from signing the informed consent form until 4 weeks after the last administration of the investigational product, and refrain from sperm/egg donation during this period.
Exclusion criteria
✕. Receipt of aldosterone receptor antagonists, renin inhibitors, or medications significantly affecting creatinine levels within 4 weeks or 5 half-lives (whichever is longer) before first investigational product administration.
✕. Continuous use of systemic corticosteroids, immunosuppressants/modulators, or Chinese herbal medicines with immunosuppressive effects within 12 weeks or 5 half-lives (whichever is longer) before first investigational product administration.
What they're measuring
1
The log-transformed ratio of 24-hour urine protein-to-creatinine ratio (24h-UPCR) compared to baseline after 12 weeks of treatment.
✕. Treatment with biological agents or complement pathway inhibitors (other than the study drug) within 12 weeks or 5 half-lives (whichever is longer) before first investigational product administration.
✕. History of gastrointestinal surgery potentially altering drug absorption/distribution/metabolism/excretion, severe gastrointestinal disorders, or conditions causing dysphagia/recurrent vomiting that may interfere with oral medication intake.
✕. Major trauma/surgery within 12 weeks before screening or planned major surgery during the study.
✕. Previous bone marrow/hematopoietic stem cell transplantation or solid organ transplantation (e.g., heart, lung, kidney, liver).
✕. Known/suspected hereditary complement deficiency, or diagnosed primary/severe secondary immunodeficiency.
✕. Poorly controlled blood pressure as assessed by the investigator.