A Randomized Controlled, Two-arm (1:1 Ratio) Phase IIa Trial to Assess the Efficacy and Safety of Obinutuzumab in Treating Adults With de Novo Minimal Change Disease (OBELIX-NS)

July 13, 2026 updated by: Medical University Innsbruck

OBELIX-NEPHROSIS (NS)

The goal of this clinical trial is to learn if obinutuzumab works to treat minimal change disease in adults. It will also learn about the safety of drug obinutuzumab. The main questions it aims to answer are:

Is obinutuzumab non-inferior to glucocorticoids at inducing remission? Does obinutuzumab provide superiority in terms of relapse-free survival after 52 weeks? What medical problems do participants have when receiving obinutuzumab? Researchers will compare drug obinutuzumab to glucocorticoids and aim to phenotype participants with minimal change disease.

Participants will:

Take the drug obinutuzumab (2 doses) or glucocorticoids Visit the clinic for 8 visits over a period of 52 weeks, plus additional controls when disease relapses occur

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

48

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • Austria
      • Graz, Austria, 8036
        • Not yet recruiting
        • Division of Nephrology, Department of Internal Medicine, Medical University of Graz
        • Contact:
        • Contact:
          • Kathrin Eller, M.D. Ph.D.
      • Innsbruck, Austria, 6020
        • Recruiting
        • Department of Internal Medicine IV, Nephrology and Hypertension
        • Contact:
        • Contact:
        • Principal Investigator:
          • Andreas Kronbichler, M.D. Ph.D.
      • Vienna, Austria, 1160
        • Not yet recruiting
        • 6. Medizinische Abteilung mit Nephrologie & Dialyse, Klinik Ottakring
        • Contact:
        • Contact:
          • Marcus Säemann, M.D.
  • France
      • Nice, France, 06003
        • Not yet recruiting
        • Laboratory of Immunology, Nice University Hospital (CHU de Nice), Côte d'Azur University
        • Contact:
        • Contact:
      • Paris, France, 94000
        • Not yet recruiting
        • Hôpital Henri-Mondor
        • Contact:
  • Germany
      • Hamburg, Germany
        • Not yet recruiting
        • III. Department of Medicine, University Medical Center Hamburg-Eppendorf
        • Contact:
        • Contact:
          • Tobias Huber, M.D.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Understands and agrees to comply with the study procedures and provides informed consent as documented by signature
  2. Male or female patients aged 18 years or older at the time of consent
  3. Confirmed first episode of nephrotic syndrome at trial enrolment (serum albumin <30g/l and UPCR >3g/g creatinine (>300 mg/mmol) secondary to de novo MCD
  4. Histologically confirmed MCD (latest before randomization to Arm A or B)

  5. Only applies to women of childbearing potential (WOCBP):

    1. Has a high sensitivity negative urine/serum pregnancy test at screening
    2. Agrees to follow contraceptive guidance until 18 months after 2nd obinutuzumab treatment (if randomized to Arm B)
  6. Only applies to trial sites in France: Patients affiliated with the French health care system

Exclusion Criteria:

  1. MCD due to secondary causes, including malignancy of a type likely to be associated with MCD (i.e., lymphoproliferative disorders), or potentially related to treatment known to be associated with MCD occurrence (lithium, interferon, non-steroidal anti-inflammatory drugs)
  2. Family history of MCD or in a first degree relative unless previously shown to be steroid-responsive
  3. Previous B cell depletion, independent of the agent and treatment target (i.e., CD20, CD38, etc.), within 18 months preceding baseline of the trial, or 12 months if there is evidence of B cell return in peripheral lymphocyte subsets
  4. Previous cyclophosphamide within 6 months preceding baseline of the trial
  5. Treatment with Predniso(lo)ne within screening phase (before randomization)
  6. Evidence of current or past infection with Hepatitis B, C or Human Immunodeficiency Virus (HIV) (unless appropriate prophylaxis is given and no replicating virus is detected)
  7. Evidence of active severe infection requiring systemic antibacterial, antifungal or antiviral therapy within 14 days prior to first dose of study drug
  8. Severe heart failure or severe, uncontrolled cardiac disease (NYHA class III or IV)
  9. Patient with a history of prior malignancy within 5 years before the first dose of study drug. Exceptions may apply for the following: malignancies with a negligible risk of metastasis or death such as adequately treated carcinoma in situ of the cervix, nonmelanoma skin carcinoma, ductal carcinoma in situ, or Stage I uterine cancer
  10. Pregnant or breast-feeding women
  11. Live vaccine administration in the four weeks prior to screening and during the study duration of 52 weeks
  12. Previous/known hypersensitivity to predniso(lo)ne or obinutuzumab or to any of the excipients to be in accordance with the SmPC of Gazyvaro
  13. Co-enrolment in another clinical trial of an investigational medicinal product
  14. Any other reason which, in the opinion of the Principal Investigator (PI), renders the patient unsuitable for the trial.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Obinutuzumab
Drug: Obinutuzumab Injection
Obinutuzumab (2-times, 1 g each) will be administered
Active Comparator: Glucocorticoids
Drug: Predniso(lo)ne
Predniso(lo)ne will be used as the active comparator, with a planned withdrawal after 6 months

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Non-inferiority of obinutuzumab to SoC predniso(lo)ne taper: Proportions of patients achieving remission (complete or partial) of MCD at 8 weeks
Time Frame: From enrollment to the end of treatment at 8 weeks
From enrollment to the end of treatment at 8 weeks
Superiority of obinutuzumab to SoC predniso(lo)ne taper: Proportions of patients sustaining remission (complete or partial)/prevent relapses of MCD during the study period of 52 weeks
Time Frame: From enrollment to the end of treatment at 52 weeks
From enrollment to the end of treatment at 52 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Medical University Innsbruck

Collaborators

Medical University of Graz
Klinik Ottakring
Centre Hospitalier Universitaire de Nice
Universitätsklinikum Hamburg-Eppendorf
Henri Mondor University Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 13, 2026

Primary Completion (Estimated)

June 30, 2028

Study Completion (Estimated)

June 30, 2029

Study Registration Dates

First Submitted

July 13, 2026

First Submitted That Met QC Criteria

July 13, 2026

First Posted (Actual)

July 17, 2026

Study Record Updates

Last Update Posted (Actual)

July 17, 2026

Last Update Submitted That Met QC Criteria

July 13, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 7174124
  • PIN7174124 (Other Grant/Funding Number: FWF)
  • 2025-520641-69 (EudraCT Number)

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

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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