ClinicalTrials.gg
Active, not recruitingNCT05786768OBIRINSUpdated Nov 6, 2026

Efficacy and Safety of Obinutuzumab Versus Rituximab in Childhood Steroid Dependant and Frequent Relapsing Nephrotic Syndrome

A Phase 2/3 interventional study of single infusion of Rituximab and single infusion of Obinutuzumab in Steroid-Dependent Nephrotic Syndrome and Steroid-Sensitive Nephrotic Syndrome, sponsored by Assistance Publique - Hôpitaux de Paris. Active, not recruiting at 1 site in France. Open to participants aged 3 Years to 18 Years. Per ClinicalTrials.gov, last updated 2026-11-06.

Sponsored by Assistance Publique - Hôpitaux de Paris · Phase 2/3, Interventional, and Treatment

Updated Nov 6, 2026Now Active, not recruitingPrimary completion moved+2 moreGo to Updates ↓
Phase
Phase 2/3
Study type
Interventional
Enrollment
88
Allocation
Randomized
Ages
3 Years to 18 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 16 studies in Nephrotic Syndrome with a site in France — 4 open to participants now, 5 under way, 1 of them phase 3. Nephrotic Syndrome · France.

Enrollment
3rd of 10
88 · median 79
Started
2023
with 1 other
Phase 2/3
4 of 16
none open now
Registered
13th of 16
by date
Lead sponsor
9 of 16
Assistance Publique - Hôpitaux de Paris

Among the 16 studies in Nephrotic Syndrome with a site in France, this one is the 3rd largest by enrollment of the 10 interventional ones that give a count, is one of 2 that started in 2023, is one of 4 in phase 2/3, and was the 13th registered.

Nephrotic Syndrome

191 studies on the registry are indexed under Nephrotic Syndrome; 65 are open to participants now.

Browse Nephrotic Syndrome studies →

Open to participants now

4 of the 16 studies in Nephrotic Syndrome with a site in France are open now. Recruiting first, the newest first:

All 4 open studies →

A study can be open while its sites in France have not opened yet or have stopped. Only those recruiting at a site in France →

Who these studies take

Of the 50 Nephrotic Syndrome studies recruiting now, 23 (46%) set no upper age limit and 22 (44%) stop at 75 or younger; 37 take children under 18; 4 take healthy volunteers.

This study: 3 Years to 18 Years · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 16 studies in Nephrotic Syndrome with a site in France, or all of them as a file.
02

Study summary

B-cell depletion with rituximab induces sustained remission in children with Steroid-Dependent or Frequent Relapsing Nephrotic Syndrome (SD/FRNS). However, most patients relapse after B-cell recovery and some do not achieve B-cell depletion. Obinutuzumab is a 2nd generation humanized monoclonal antiCD20 antibody, with enhanced B cell-depleting potential. It has been reported safe and efficient in different renal autoimmune diseases including childhood nephrotic syndrome. This double-blind, randomized multicenter study is designed to assess the efficacy and safety of a single infusion of low-dose obinutuzumab compared to a single infusion of rituximab in children with frequently relapsing nephrotic syndrome (FRNS) or steroid-dependent nephrotic syndrome (SDNS).

Read the detailed description

Idiopathic nephrotic syndrome (INS) is the most frequent acquired glomerulopathy in children. The initial treatment relies on steroids, which enables remission of proteinuria in 90% of children. However, 80 % of steroid-sensitive patients will relapse, and 2/3 will become steroid-dependant with a long lasting disease over years. In this situation, immunosuppressive drugs are added as steroid-sparing agents. There is no international consensus on the second line treatment strategy after initial steroid therapy. RCT have demonstrated the efficacy of rituximab (RTX) to maintain remission in FR/SDNS after oral treatments withdrawal, however most patients relapse within 2 years, and some patients are resistant or allergic to Rituximab. Obinutuzumab (OBI) is a second generation antiCD20 mAb, that has been designed to overcome rituximab resistance in B-cell malignancies. Additional mechanisms of rituximab failure support the hypothesis that B-cell depletion could be optimized with OBI in autoimmune diseases. OBI has met its primary endpoint in lupus nephritis and a few randomized controlled trials are currently ongoing in nephrology for lupus nephritis and membranous nephropathy. We believe that a single infusion of OBI could reduce the risk of subsequent relapse in FR/SDNS and the cumulative exposure to immunosuppressive drugs.

03

Conditions studied

  • Steroid-Dependent Nephrotic Syndrome
  • Steroid-Sensitive Nephrotic Syndrome

Browse trials for

Keywords

  • Rituximab
  • Obinutuzumab
  • Anti-Drug Antibodies
04

Who can participate

Ages eligible
3 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age between 3 and 18 years
  • dependant Nephrotic Syndrome defined as:

    • 2 or more relapses during steroids or within 2 weeks following discontinuation.
    • 2 or more relapses including one under steroid-sparing agent (MMF, Calcineurin inhibitors, cyclophosphamide, levamisole) or within 6 months following treatment withdrawal

OR Frequent Relapsing Nephrotic Syndrome defined as:

  • 2 or more relapses within 6 months following first remission
  • 3 or more relapses within any 12-month period

    • Last relapse within 3 months prior to inclusion
    • In remission, defined as 3 consecutive urinary dipsticks without proteinuria, at the time of randomization
    • Vaccination schedule in accordance with the current recommendations in France
    • from parents

Exclusion criteria

Exclusion Criteria:

  • Secondary cause of nephrotic syndrome (such as membranous nephropathy, IgA nephropathy, lupus nephritis)
  • Primary or secondary resistance nephrotic syndrome
  • Prior treatment with Rituximab within 6 months
  • Prior treatment with obinutuzumab at any time
  • CD20+ B-cell count \< 2.5%
  • Patient with neutrophils \< 1.5 G/L and/or \< 75 G/L
  • \< 80 ml/min/1.73m2
  • Weight \<16kg
  • History of severe infection such as tuberculosis, , or infection or LEMP
  • History of - Uncontrolled infection (viral, bacterial and fungal)
  • Vaccination with a within 4 weeks prior to assignment/randomization
  • Known hyperprolinemia
  • to the active substance (OBI or RTX) or to proteins of murine origin, or to any of the other
  • Pregnancy or breastfeeding or ability to become pregnant and refusal to use effective during the 18 months following the study treatment (only 1 infusion of obinutuzumab/Rituximab at the beginning of the study)
  • Patient without medical insurance coverage (beneficiary or legal)
Terms in these criteria, in plain language(12)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
88 participants (actual)

Study arms

  • Active comparator
    Rituximab 375 mg/m2

    single infusion of Rituximab (375 mg/m2)

    Drug: single infusion of Rituximab

  • Experimental
    Obinutuzumab 300 mg/1.73 m2

    single infusion of Obinutuzumab 300 mg/1.73 m2

    Drug: single infusion of Obinutuzumab

Interventions

  • Drugsingle infusion of Rituximab

    single infusion of Rituximab 375 mg/m2

    Also known as: single infusion of Rituximab 375 mg/m2

  • Drugsingle infusion of Obinutuzumab

    single infusion of Obinutuzumab 300mg/1.73 m2

    Also known as: single infusion of Obinutuzumab 300mg/1.73 m2

06

What researchers measure

Primary outcomes

  1. Occurrence of a relapse within 12 months following the initiation of treatment

    Relapse is defined as a protein to creatinine ratio of 2 g/g of creatinine (0.20 g/mmol) or higher

    Time frame: 12 months

Secondary outcomes

  1. Occurrence of a relapse within 24 months

    Time frame: 24 months

  2. Time to B-cell depletion

    Time frame: 24 months

  3. Duration of relapse-free survival after B-cell reconstitution

    Time frame: 24 months

  4. Cumulative steroid courses and second line immunosuppressive treatments in patients with relape

    Time frame: 24 months

  5. Safety associated with drug infusion

    Nature, frequency and timing of side effects

    Time frame: 24 months

  6. Efficiency defined as incremental cost-effectiveness ratio in cost per relapse prevented

    Time frame: 24 months

  7. Budgetary impact defined as costs and health gains incurred with the generalization of the obinutuzumab strategy

    Time frame: 24 months

  8. Detection of Antidrug Antibodies

    Time frame: 24 months

07

Study locations

1 site
08

References and documents

Publications

  • Dossier C, Sellier-Leclerc AL, Simon T, Parmentier C, Boyer O, Samaille C, Fila M, Roussey-Kesler G, Magnavacca M, Chartier Y, Louillet F, Zaloszyc A, Vrillon I, Elaribi D, Bouatia S, Kaguelidou F, Guilmin-Crepon S, Hogan J. Obinutuzumab versus Rituximab to maintain remission in children with steroid-dependent and frequently relapsing nephrotic syndrome: the OBIRINS study protocol, a double-blind randomised controlled trial. BMJ Open. 2025 Dec 24;15(12):e111980. doi: 10.1136/bmjopen-2025-111980. PubMed 41448676 ↗
  • Larkins NG, Hahn D, Liu ID, Willis NS, Craig JC, Hodson EM. Non-corticosteroid immunosuppressive medications for steroid-sensitive nephrotic syndrome in children. Cochrane Database Syst Rev. 2024 Nov 8;11(11):CD002290. doi: 10.1002/14651858.CD002290.pub6. PubMed 39513526 ↗
  • Dossier C, Bonneric S, Baudouin V, Kwon T, Prim B, Cambier A, Couderc A, Moreau C, Deschenes G, Hogan J. Obinutuzumab in Frequently Relapsing and Steroid-Dependent Nephrotic Syndrome in Children. Clin J Am Soc Nephrol. 2023 Dec 1;18(12):1555-1562. doi: 10.2215/CJN.0000000000000288. Epub 2023 Sep 6. PubMed 37678236 ↗

Individual participant data

Plan to share: Yes

Supporting information: Study protocol, Informed consent form

Time frame: 48 months

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedDate before it movedWhere the date was before it moved

Started Oct 2023 (actual). Primary completion is estimated for Jun 2027, 44 months after the start.

Since we started tracking on Sep 25, 2026, the dates moved once, on Nov 6, 2026: primary completion Oct 2027 → Jun 2027 and completion Dec 2027 → Jun 2027.

Earlier changes are on the record history on ClinicalTrials.gov ↗

How these figures are worked out, and which studies are left out of them.

Registered
Feb 10, 2023
First posted
Mar 28, 2023
StartActual
Oct 18, 2023
Primary completionEst.
Jun 30, 2027was Oct 2027
CompletionEst.
Jun 30, 2027was Dec 2027
Last update
Nov 6, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Status
Recruiting→Active, not recruiting
changed Nov 6, 2026
Primary completion
Oct 18, 2027→Jun 30, 2027
Nov 6, 2026
Study completion
Dec 31, 2027→Jun 30, 2027
Nov 6, 2026
Publications
3 publications citing this study linked from PubMed, e.g. PubMed 41448676 ↗
Nov 6, 2026
Show all 1 update
  1. Nov 6, 2026
    Recruiting→Active, not recruiting
    Publications 3 publications citing this study linked from PubMed, e.g. PubMed 41448676 ↗
    Primary completion Oct 18, 2027→Jun 30, 2027
    Study completion Dec 31, 2027→Jun 30, 2027
    + 4 other changes: verification date, contact details, site details and index terms

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT05786768
Responsible party
Sponsor
First posted
Mar 28, 2023
Start date
Oct 18, 2023
Primary completion
Jun 30, 2027 (estimated)
Completion
Jun 30, 2027 (estimated)
Last update
Nov 6, 2026

Study contacts

Claire DOSSIER, MD
principal investigator · Assistance Publique - Hôpitaux de Paris

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Nov 2026. You cannot join it, but the record below documents what was studied.

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