IgA Nephropathy

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5FDA treatments49Active trials84Specialists8Treatment centers5Financial resources

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UniteRare data is sourced from FDA.gov, ClinicalTrials.gov, Orphanet, OMIM, and NORD.
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Overview

IgA nephropathy (Berger disease) is a kidney disease caused by deposits of immunoglobulin A (IgA) in the glomeruli. It is the most common primary glomerulonephritis worldwide and can lead to end-stage renal disease in 20-40% of patients over 20 years.

Also known as:

Inheritance

Sporadic/Multifactorial

Age of Onset

Childhood to adulthood

Can begin any time from childhood through adulthood

Orphanet ↗NORD ↗

FDA & Trial Timeline

10 events
May 2026IgA Nephropathy Insights From Treatment Experience Among Patients Receiving Iptacopan and/or Atrasentan Using Primary Data Collection

Novartis Pharmaceuticals

TrialNOT YET RECRUITING
Apr 2026FILSPARI: New indication approved
FDAcompleted
Mar 2026FXS6837 for the Treatment of IgAN Patients

Shanghai Fosun Pharmaceutical Industrial Development Co. Ltd. — PHASE2

TrialNOT YET RECRUITING
Mar 2026A Study of YKST02 in Participants With Primary IgA Nephropathy

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology — EARLY_PHASE1

TrialNOT YET RECRUITING
Mar 2026A Study of RG002C0106 Injection in Adult Participants With Normal Renal Function and Mild-to-Moderate Renal Impairment

Rigerna Therapeutics Co., Ltd.; Rigerna Therapeutics (Beijing) Co., Ltd. — PHASE1

TrialNOT YET RECRUITING
Feb 2026A Study to Assess the Effects of Zigakibart on IgA Nephropathy.

Novartis Pharmaceuticals — PHASE2

TrialNOT YET RECRUITING
Feb 2026PS-002 for the Treatment of IgA Nephropathy in Adults

Purespring Therapeutics Limited — PHASE1, PHASE2

TrialRECRUITING
Feb 2026A Study of SHR-2173 in Participants With Primary IgA Nephropathy

Guangdong Hengrui Pharmaceutical Co., Ltd — PHASE2

TrialNOT YET RECRUITING
Feb 2026Phase Ⅲ Study of Efficacy and Safety of HSK39297 Tablet in Treatment of Patients With Primary IgAN

Haisco Pharmaceutical Group Co., Ltd. — PHASE3

TrialRECRUITING
Feb 2026Autoimmune Protocol Diet Intervention on Proteinuria in IgA Nephropathy Patients

University of California, Los Angeles — NA

TrialNOT YET RECRUITING

Data sourced from FDA regulatory filings and ClinicalTrials.gov. Updated periodically.

Treatments

5 available

Voyxact

sibeprenlimab· OtsukaOrphan Drug
Voyxact (sibeprenlimab) is a first-in-class APRIL inhibitor approved for reduction of proteinuria in adults with primary IgA nephropathy at risk for disease progression. It achieved a 51% placebo-adju

Voyxact (sibeprenlimab) is a first-in-class APRIL inhibitor approved for reduction of proteinuria in adults with primary IgA nephropathy at risk for disease progression. It achieved a 51% placebo-adjusted reduction in proteinuria in the Phase 3 VISIONARY trial.

Vanrafia

atrasentan· Novartis■ Boxed WarningOrphan Drug
Vanrafia (atrasentan) is the first and only selective endothelin A receptor antagonist approved for reduction of proteinuria in adults with primary IgA nephropathy at risk of rapid disease progression

Vanrafia (atrasentan) is the first and only selective endothelin A receptor antagonist approved for reduction of proteinuria in adults with primary IgA nephropathy at risk of rapid disease progression. FDA accelerated approval based on Phase 3 ALIGN trial.

FABHALTA

IPTACOPAN· Novartis Pharmaceuticals Corporation■ Boxed WarningAccelerated Approval

the reduction of proteinuria in adults with primary immunoglobulin A nephropathy (IgAN) at risk of rapid disease progression, generally a urine protein-to-creatinine ratio (UPCR) ≥ 1.5 g/g

Filspari

sparsentan· Travere Therapeutics■ Boxed WarningOrphan Drug

Indicated to reduce proteinuria in adults with primary IgA nephropathy at risk of rapid disease progression.

Tarpeyo

budesonide delayed-release· Calliditas TherapeuticsOrphan Drug

Indicated to reduce proteinuria in adults with primary IgA nephropathy at risk of rapid disease progression.

Clinical Trials

20 recruitingView all trials with filters →
Phase 39 trials
Trial of Sibeprenlimab in the Treatment of A Nephropathy (IgAN)
Phase 3
Active
· Sites: Birmingham, Alabama; Phoenix, Arizona +306 more · Age: 1899 yrs
A Study of SC0062 Capsule for the Treatment of IgA Nephropathy with Proteinuria
Phase 3
Actively Recruiting
· Sites: Guangzhou, Yuexiu District · Age: 1899 yrs
A Study of Telitacicept for IgA Nephropathy (TELIGAN)
Phase 3
Active
PI: Jicheng Lv, M.D. (Peking University First Hospital) · Sites: Bengbu, Anhui; Hefei, Anhui +99 more · Age: 1899 yrs
A Trial of HRS-5965 Capsule in Primary IgA Nephropathy
Phase 3
Actively Recruiting
· Sites: Beijing, Beijing Municipality · Age: 1899 yrs
Evaluation of Efficacy of Povetacicept in Adults With Immunoglobulin A Nephropathy (IgAN)
Phase 3
Active
· Sites: Huntsville, Alabama; Phoenix, Arizona +316 more · Age: 1899 yrs
To Evaluate the Effect and Safety of Telitacicept and Standard Treatment for 6months in IgA Nephropathy
Phase 3
Active
· Sites: Xuzhou, Jiangsu · Age: 1875 yrs
A Study to Learn About the Effects of Felzartamab Infusions on Adults With Immunoglobulin A Nephropathy (IgAN)
Phase 3
Actively Recruiting
PI: Medical Director (Biogen) · Sites: Little Rock, Arkansas; Apple Valley, California +207 more · Age: 1899 yrs
Efficacy of Immunosuppressive Therapy for IgA Nephropathy With Stage 3 or 4 CKD
Phase 3
Actively Recruiting
· Sites: Xi'an · Age: 1899 yrs
A Study of the Effect and Safety of Sparsentan in the Treatment of Patients With IgA Nephropathy
Phase 3
Active
PI: Radko Komers, MD, PhD (Travere Therapeutics, Inc.) · Sites: Birmingham, Alabama; Homewood, Alabama +160 more · Age: 1899 yrs
Phase 43 trials
Efficacy and Safety of Extended TARPEYO® Treatment Beyond 9 Months in Adult Patients With Primary IgA Nephropathy
Phase 4
Actively Recruiting
PI: Krassimir Mitchev (Calliditas Therapeutics) · Sites: Birmingham, Alabama; Glendale, Arizona +36 more · Age: 1899 yrs
Nefecon and Ambrisentan in IgA Nephropathy
Phase 4
Actively Recruiting
· Sites: Changchun, Jilin · Age: 1870 yrs
Multicentre Clinical Study to Evaluate the Effect of Personalized Therapy on Patients With Immunoglobulin A Nephropathy.
Phase 4
Actively Recruiting
PI: Francesco P Schena (Fondazione Schena) · Sites: Bari, BA; Bari, BA · Age: 1899 yrs
Other8 trials
IgA Nephropathy Registration Initiative of High Quality (INSIGHT)
Actively Recruiting
· Sites: Guangzhou, Guangdong · Age: 1499 yrs
Study of the Link Between Complement Activation and IgA Nephropathy Severity
Actively Recruiting
· Sites: Strasbourg · Age: 1899 yrs
Correlation of Microbiome and Metabonomics With IgA Nephropathy
Actively Recruiting
PI: Xueqing Yu (Guangdong Provincial People's Hospital) · Sites: Guangzhou, Guangdong; Guangzhou, Guangdong +3 more · Age: 1665 yrs
TESTING -ON Post-Trial ObservatioNal Cohort Study
Actively Recruiting
PI: Hong Zhang, Prof (Peking University Institute of Nephrology) · Sites: Kingswood, New South Wales; St Leonards, New South Wales +56 more · Age: 18100 yrs
A Multi-center Open Label Prospective Study on Early Initiation of Targeted-release Formulation of Budesonide in Patients With Primary IgA Nephropathy
Actively Recruiting
· Sites: Chengdu, Sichuan · Age: 1875 yrs
The Chinese Registry of Prognostic Study of IgA Nephropathy (CRPIGA)
Actively Recruiting
PI: Jingyuan Xie (Ruijin Hospital) · Sites: Shanghai, Shanghai Municipality
RESistance of IgA Nephropathy to Conventional and Newly-approved Therapies: an Observational, Real-life Study (RESIGAN)
Actively Recruiting
· Sites: Paris · Age: 1899 yrs
A Mobile App-Based Study to Evaluate Disease Burden and Treatment Patterns in Immunoglobulin A Nephropathy (IgAN) in the US
Actively Recruiting
· Sites: Boston, Massachusetts · Age: 1899 yrs

Specialists

Showing 25 of 84View all specialists →
JL
Jicheng Lv
Specialist
PI on 2 active trials
DR
Dana V Rizk
BIRMINGHAM, AL
Specialist
6 IgA Nephropathy publications
JF
Jürgen Floege
Specialist
6 IgA Nephropathy publications
ST
Sydney C W Tang
DALLAS, TX
Specialist
2 IgA Nephropathy publications
RL
Richard Lafayette
STANFORD, CA
Specialist
4 IgA Nephropathy publications
MM
Mohit Mathur
Specialist
3 IgA Nephropathy publications
AL
Adrian Liew
Specialist
4 IgA Nephropathy publications
HS
Hitoshi Suzuki
Specialist
5 IgA Nephropathy publications
HT
Hernán Trimarchi
Specialist
3 IgA Nephropathy publications
HR
Heather N Reich
FLUSHING, NY
Specialist
2 IgA Nephropathy publications
YN
Yoshihito Nihei
Specialist
3 IgA Nephropathy publications
HS
Haresh Selvaskandan
Specialist
3 IgA Nephropathy publications
CC
Chee Kay Cheung
Specialist
5 IgA Nephropathy publications
JB
Jonathan Barratt
HOUSTON, TX
Specialist
15 IgA Nephropathy publications
HZ
Hong Zhang
Specialist
8 IgA Nephropathy publications
YS
Yusuke Suzuki
VALLEJO, CA
Specialist
7 IgA Nephropathy publications
FM
Fernando Fervenza, MD
ROCHESTER, MN
Specialist
PI on 3 active trials
RP
Radko Komers, MD, PhD
PORTLAND, OR
Specialist
PI on 5 active trials
DP
Dominique JOLY, MD, PhD
Specialist
PI on 2 active trials
DS
David Sheikh-Hamad
HOUSTON, TX
Specialist
PI on 1 active trial
FD
Francoise Desir
Specialist
PI on 1 active trial
XY
Xueqing Yu
Specialist
PI on 4 active trials
QW
Qijun Wan
Specialist
PI on 1 active trial
SK
Suhnggwon Kim
Specialist
PI on 1 active trial

Treatment Centers

8 centers
🏥 NORD

Baylor College of Medicine Rare Disease Center

Baylor College of Medicine

📍 Houston, TX

🏥 NORD

Stanford Medicine Rare Disease Center

Stanford Medicine

📍 Stanford, CA

🔬 UDN

NIH Clinical Center Undiagnosed Diseases Program

National Institutes of Health

📍 Bethesda, MD

🔬 UDN

UCLA UDN Clinical Site

UCLA Health

📍 Los Angeles, CA

🔬 UDN

Baylor College of Medicine UDN Clinical Site

Baylor College of Medicine

📍 Houston, TX

🔬 UDN

Harvard/MGH UDN Clinical Site

Massachusetts General Hospital

📍 Boston, MA

🏥 NORD

Mayo Clinic Center for Individualized Medicine

Mayo Clinic

📍 Rochester, MN

👤 Mayo Clinic Center for Individualized Medicine

🏥 NORD

UCLA Rare Disease Day Program

UCLA Health

📍 Los Angeles, CA

Financial Resources

5 resources
Voyxact(sibeprenlimab)Otsuka
Vanrafia(atrasentan)Novartis
FABHALTA(IPTACOPAN)Novartis Pharmaceuticals Corporation
Filspari(sparsentan)Travere Therapeutics
Tarpeyo(budesonide delayed-release)Calliditas Therapeutics

Travel Grants

No travel grants are currently matched to IgA Nephropathy.

Search all travel grants →NORD Financial Assistance ↗

Community

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Latest news about IgA Nephropathy

5 articles
NewsKIDNEY INTERNATIONALApr 18, 2026
Evidence from multicenter clinical studies and humanized mouse models indicates that glomerular mesangial IgA2 deposition contributes to the pathogenesis of IgA nephropathy.
While IgA1 is well established as pathogenic in IgA nephropathy (IgAN), IgA2's role remains controversial. The most notable difference between IgA1 and IgA2 lie
NewsBMC NEPHROLMar 28, 2026
The UK Eastern Network for Kidney Inflammatory Disease (ENKID) MDT at 24 months: advancing access to high-cost drugs, clinical trials, and complex case management in renal autoimmune diseases
Published in BMC Nephrol. Francis L et al.
NewsFRONTIERS IN IMMUNOLOGYMar 25, 2026
Autoimmunity in IgA nephropathy.
IgA nephropathy (IgAN) is the most common primary glomerulonephritis worldwide. Its pathogenesis is widely described by a multi-hit hypothesis in which galactos
NewsKIDNEY INTERNATIONALMar 21, 2026
Multi-omics analyses reveal the pathogenic role of terminal ileum-derived IgA + β7 + cells in IgA nephropathy.
Galactose-deficient IgA1 (Gd-IgA1) plays a key role in IgA nephropathy (IgAN), but the location of the plasma cells responsible for its production remain unknow
NewsJOURNAL OF CLINICAL MEDICINEMar 14, 2026
IgA Nephropathy: Epidemiology, Outcomes, and Insights for Primary Glomerulonephritides.
According to the Global Burden of Disease 2019 analysis, there were 606,300 new cases of chronic kidney disease due to glomerulonephritis worldwide, with 17.3 m
See all news about IgA Nephropathy

Caregiver Resources

NORD Caregiver Resources

Support, advocacy, and financial assistance for caregivers of rare disease patients.

Mental Health Support

Rare disease caregiving can be isolating. Connect with counseling and peer support.

Family & Caregiver Grants

Financial assistance programs specifically for caregivers of rare disease patients.

Social Security Disability

Learn how rare disease patients may qualify for SSDI/SSI benefits.

Common questions about IgA Nephropathy

What is IgA Nephropathy?

IgA nephropathy (Berger disease) is a kidney disease caused by deposits of immunoglobulin A (IgA) in the glomeruli. It is the most common primary glomerulonephritis worldwide and can lead to end-stage renal disease in 20-40% of patients over 20 years.

How is IgA Nephropathy inherited?

IgA Nephropathy follows a sporadic/multifactorial inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.

At what age does IgA Nephropathy typically begin?

Typical onset of IgA Nephropathy is childhood to adulthood. Age of onset can vary across affected individuals.

Are there clinical trials for IgA Nephropathy?

Yes — 20 recruiting clinical trials are currently listed for IgA Nephropathy on UniteRare. See the clinical trials section on this page for phase, sponsor, and site details sourced from ClinicalTrials.gov.

Which specialists treat IgA Nephropathy?

25 specialists and care centers treating IgA Nephropathy are listed on UniteRare, sourced from ClinicalTrials.gov principal investigators, published research, and the NPPES NPI registry.

What treatment and support options exist for IgA Nephropathy?

5 patient support programs are currently tracked on UniteRare for IgA Nephropathy. See the treatments and support programs sections for copay assistance, eligibility, and contact details.