Clinical trial Recruiting at 1 site Observational Ages 18 and up

Investigating B Cells in Membranous Nephropathy

Official title: PLA2R Autoreactive B-Cell Subsets and Immune Cell Monitoring in Membranous Nephropathy: Identification of Outcome Predictors and Novel Insights Into Disease Pathogenesis

Run by Mario Negri Institute for Pharmacological Research · NCT04095156 · Data updated 2026-11-12

This study looks at how certain immune cells called B-cells affect whether patients with membranous nephropathy respond to a specific treatment that targets these cells.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment86 (estimated)
SponsorMario Negri Institute for Pharmacological Research
Academic / other
Locations1 site (Ranica, BG)
StatusRecruiting
StartedSeptember 25, 2019
Main results expectedNovember 2026
Study endsNovember 2026
Registry record updatedMarch 20, 2026
Trial IDNCT04095156 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults over 18 with biopsy-proven idiopathic membranous nephropathy who are either prospective candidates for or have already received B-cell depleting treatment.

Probably not a fit

Patients with secondary causes of membranous nephropathy or those with significant comorbidities may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study focuses on patients with membranous nephropathy (MN), a leading cause of nephrotic syndrome in adults. It aims to analyze the role of autoreactive B-cells in patients who respond to B-cell depleting therapy with anti-CD20 monoclonal antibodies compared to those who do not. By examining the differences in B- and T-cell compartments, the study seeks to understand why some patients achieve remission while others do not. The research involves in vitro assays to explore these cellular dynamics.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for patients with membranous nephropathy, enhancing remission rates.

How similar studies have gone: While the approach of analyzing B-cell dynamics in MN is relatively novel, there is limited evidence from previous studies indicating varying responses to B-cell depletion therapies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Patients inclusion criteria

* Males and females.
* Adults (\> 18 years old).
* Patients with biopsy-proven idiopathic MN, who are candidate to receive (prospective cohort) or who already received (retrospective cohort) a B-cell depleting treatment as per center clinical practice.
* Mental state is such that they are able to understand and give valid consent to the study;
* Written informed consent according to the guidelines of the Declaration of Helsinki.

Healthy volunteers inclusion criteria

* Male and female (\>18 years) not known to suffer of any significant illness;
* Not assuming any medication or drug on a regular basis;
* Negative urine analysis (urine dipstick, multistick);
* Written informed consent according to the guidelines of the Declaration of Helsinki

Exclusion Criteria:

Patients exclusion criteria

* Reasonable possibility of a secondary cause of MN (e.g.systemic lupus erythematosus, active hepatitis B, malignancy, drugs such as gold salts and penicillamine).
* Legal incapacity, intellectual disability/mental retardation, dementia, uncooperative attitude or any other evidence that patient will not be able to understand the study procedures and aims and to give written informed consent.

Healthy volunteers exclusion criteria

\- Legal incapacity, intellectual disability/mental retardation, dementia, uncooperative attitude or any other evidence that patient will not be able to understand the study procedures and aims and to give written informed consent.

Where it's running

  • Centro di Ricerche Cliniche per le Malattie Rare " Aldo e Cele Daccò"
    Ranica, Bg, Italy
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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  • Long-term outcomes in primary membranous nephropathy

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.