Zuberitamab in the First Episode of Paediatric Nephrotic Syndrome

Trial statusNot yet recruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
Age1-18
SponsorChildren's Hospital of Fudan University

About this trial

The goal of this clinical trial is to learn whether adding Zuberitamab to standard corticosteroid therapy can help prevent relapse in children and adolescents aged 1 to 18 years with newly diagnosed steroid-sensitive nephrotic syndrome (SSNS). It will also learn about the safety of Zuberitamab.

The main questions it aims to answer are:

* Does Zuberitamab plus standard corticosteroid therapy prolong the time to first relapse compared with standard corticosteroid therapy alone? * What medical problems do participants experience during treatment?

Researchers will compare Zuberitamab plus standard corticosteroid therapy to standard corticosteroid therapy alone to see whether adding Zuberitamab improves disease control.

Participants will:

* Receive standard corticosteroid treatment for approximately 12 weeks, with or without a single intravenous infusion of Zuberitamab after achieving remission * Take preventive antibiotics if they are in the Zuberitamab group * Test their urine daily at home using dipsticks and record results in a diary * Visit the clinic for regular checkups and blood and urine tests during follow-up for up to 12 months

Eligibility criteria

Qualifiers

Newly diagnosed steroid-sensitive nephrotic syndrome (SSNS) according to the 2023 IPNA criteria, who achieved complete remission after steroid induction therapy prior to study entry, defined as UPCR (based on first morning void or 24 h urine sample) <= 20 mg/mmol (0.2 mg/mg), or negative or trace dipstick on three or more consecutive days.

An estimated glomerular filtration rate >= 90 mL/min/ 1.73 m2 at study entry.

Peripheral blood CD20+ (detected as CD19+) cells >= 1% of total lymphocytes.

No use of other immunosuppressants within 3 months prior to study entry, other than steroids for nephrotic syndrome.

Disqualifiers

Known etiology including congenital nephrotic syndrome, IgA nephropathy, Henoch-Schönlein purpura nephritis, lupus nephritis, or other secondary nephrotic syndromes.

Patients exhibiting any of the following abnormal clinical laboratory values: leukopenia (white blood cells <= 3.0 × 10^9/L), absolute neutrophil count < 1.5 × 10^9/L; moderate to severe anemia (hemoglobin < 9.0 g/dL); thrombocytopenia (platelet count < 100 × 10^12/L); alanine aminotransferase (ALT) or aspartate aminotransferase (AST) > 2.5 times the upper limit of normal; positive for any autoimmune markers (ANA, ENA, ANCA, etc.) or decreased complement C3 levels.

Evidence of the following infections: severe or opportunistic infection within the previous 6 months (active tuberculosis or history of tuberculosis or suspected tuberculosis; chronic active infections such as EBV, CMV; active hepatitis B presentation or history, or hepatitis C or hepatitis B virus carrier; HIV infection; or other active viral infections).

Receipt of live vaccine within one month prior to study entry.

Trial design

Treatments tested in this trial

  • Zuberitamab
  • standard corticosteroid treatment

Treatment groups

120 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Children's Hospital of Fudan University

Lead sponsor

Guiyang Maternal and Child Health Care Hospital

Collaborator

Wuhan Children's Hospital

Collaborator

Shanghai Children's Medical Center

Collaborator

Xinhua Hospital, Shanghai Jiao Tong University School of Medicine

Collaborator

Shanghai Children's Hospital

Collaborator

Wuxi Women's & Children's Hospital

Collaborator

Xiamen Maternity & Child Care Hospital

Collaborator

Second Xiangya Hospital of Central South University

Collaborator