Urinary Congophilia As an Indicator of Activity of Lupus Nephritis

NCT ID: NCT06654024

Last Updated: 2024-12-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

74 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-12-31

Study Completion Date

2026-02-28

Brief Summary

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Evaluation of the impact of SLE on urinary levels of congophilia and their relationship to renal histopathology and activity of lupus nephritis (LN)

Detailed Description

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Systemic lupus erythematosus (SLE) is an inflammatory autoimmune disease that can affect all body organs. The reported lifetime incidence of lupus nephritis (LN) in SLE patients is 20%- 60% and it is histologically evident in most SLE patients, even without clinical manifestations of kidney disease .

Lupus nephritis is associated with higher mortality , as within 5 years of diagnosis, between 10 and 30 percent of these people develop end-stage renal disease . Early detection and treatment of lupus nephritis can significantly improve renal outcomes and decrease overall mortality .

Endoplasmic reticulum (ER) stress proteins, which act as protein quality control factors in the secretory pathway in the cell are induced by ER stress in inflammatory lesions, and also participate in autoimmunity and inflammation processes, ER stress proteins are expressed not only in the ER but also occasionally at the cell surface that plays pathophysiological roles in autoimmune and inflammatory diseases as pro- or anti-inflammatory factors, Protein folding is easily impaired (misfolding) by different cytotoxic stresses as inflammation or hypoxia , that may contribute to disease pathogenesis by either reducing the biological activity of the protein or due to toxicity by the misfolded proteins, The detection of the abnormally misfolded proteins using the Congo red stain is referred to as congophilia, Urinary congophilia was assessed by Congo Red Dot Blot (CRDB) Assay Congo red is a synthetic diazo dye with specific affinity for β-sheets of amyloid fibrils of misfolded proteins, In addition to the simplicity of congophilia based dot blot technique, the non-invasiveness of the method is useful in adapting the CRDB assay for self-collected urine samples.

One previous study in pregnant females with lupus nephritis said that urinary congophilia has a diagnostic value in patients with lupus nephritis and can be used as a reliable marker of disease activity as the presence of urinary congophilia biomarker is related to disease activity rather than pregnancy.

Conditions

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Lupus Nephritis (LN)

Keywords

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congophilia lupus nephritis congo red

Study Design

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Observational Model Type

CASE_CROSSOVER

Study Time Perspective

CROSS_SECTIONAL

Eligibility Criteria

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Inclusion Criteria

\- Adult patients ≥ 18 years old that were diagnosed with SLE according to EULAR/ACR classification criteria 2019 for SLE, and lupus nephritis based on renal biopsy or active urinary sediment (proteinuria or hematuria )

Exclusion Criteria

* Any patient has evidence of nephritis that may cause proteinuria as diabetes mellitus and any other causes of glomerulonephritis other than lupus nephritis
* pregnant females with lupus nephritis and hypertensive disorders
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Assiut University

OTHER

Sponsor Role lead

Responsible Party

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Ali Setohy Hussein Ali

assistant lecturer

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Radwa Awad Abdelhafiz, PhD doctorate

Role: STUDY_DIRECTOR

assuit university, faculty of medicine

Samir Kamal Abd elhameed, Professor

Role: STUDY_DIRECTOR

assuit university, faculty of medicine

Locations

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Assuit University ,Faculty of Medicine

Assute, Assute, Egypt

Site Status

Countries

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Egypt

Central Contacts

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ali setohy hussien, has master degree

Role: CONTACT

Phone: +2001020462809

Email: [email protected]

Radwa Awad Abdelhafiz, PhD doctorate

Role: CONTACT

Phone: +2001003797448

Email: [email protected]

Facility Contacts

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ali S hussien

Role: primary

References

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Prasanwong T, Laoharojvongsa N, Pongpanich K, Satirapoj B, Charoenpitakchai M. Pathological assessment of activity and chronicity indices in lupus nephritis patients. Asian Arch Path. 2020;2:3-13.

Reference Type BACKGROUND

Aringer M. EULAR/ACR classification criteria for SLE. Semin Arthritis Rheum. 2019 Dec;49(3S):S14-S17. doi: 10.1016/j.semarthrit.2019.09.009.

Reference Type BACKGROUND
PMID: 31779843 (View on PubMed)

Younis D, Shemies RS, El-Kannishy G, Mosbah A, Zakaria M, Awadalla A, et al. # 5383 THE PREDICTIVE VALUE OF URINARY CONGOPHILIA AS A BIOMARKER IN PREGNANT AND NON-PREGNANT WOMEN WITH LUPUS NEPHRITIS. Nephrology Dialysis Transplantation.

Reference Type BACKGROUND

Khaliq OP, Phoswa WN, Moodley J. The effectiveness of the Congo Red Dot paper test in hypertensive disorders of pregnancy: A systematic review and meta-analysis. Front Reprod Health. 2023 Feb 13;5:1120937. doi: 10.3389/frph.2023.1120937. eCollection 2023.

Reference Type BACKGROUND
PMID: 36864848 (View on PubMed)

Buhimschi IA, Nayeri UA, Zhao G, Shook LL, Pensalfini A, Funai EF, Bernstein IM, Glabe CG, Buhimschi CS. Protein misfolding, congophilia, oligomerization, and defective amyloid processing in preeclampsia. Sci Transl Med. 2014 Jul 16;6(245):245ra92. doi: 10.1126/scitranslmed.3008808.

Reference Type BACKGROUND
PMID: 25031267 (View on PubMed)

Nagarajappa C, Rangappa SS, Suryanarayana R, Balakrishna S. Urinary congophilia in preeclampsia: Experience from a rural tertiary-care hospital in India. Pregnancy Hypertens. 2018 Jul;13:83-86. doi: 10.1016/j.preghy.2018.05.006. Epub 2018 May 14.

Reference Type BACKGROUND
PMID: 30177078 (View on PubMed)

Morito D, Nagata K. ER Stress Proteins in Autoimmune and Inflammatory Diseases. Front Immunol. 2012 Mar 15;3:48. doi: 10.3389/fimmu.2012.00048. eCollection 2012.

Reference Type BACKGROUND
PMID: 22566930 (View on PubMed)

Kostopoulou M, Adamichou C, Bertsias G. An Update on the Diagnosis and Management of Lupus Nephritis. Curr Rheumatol Rep. 2020 Jun 4;22(7):30. doi: 10.1007/s11926-020-00906-7.

Reference Type BACKGROUND
PMID: 32500443 (View on PubMed)

Mok CC, Teng YKO, Saxena R, Tanaka Y. Treatment of lupus nephritis: consensus, evidence and perspectives. Nat Rev Rheumatol. 2023 Apr;19(4):227-238. doi: 10.1038/s41584-023-00925-5. Epub 2023 Mar 2.

Reference Type BACKGROUND
PMID: 36864291 (View on PubMed)

Gasparotto M, Gatto M, Binda V, Doria A, Moroni G. Lupus nephritis: clinical presentations and outcomes in the 21st century. Rheumatology (Oxford). 2020 Dec 5;59(Suppl5):v39-v51. doi: 10.1093/rheumatology/keaa381.

Reference Type BACKGROUND
PMID: 33280015 (View on PubMed)

Zen M, Salmaso L, Barbiellini Amidei C, Fedeli U, Bellio S, Iaccarino L, Doria A, Saia M. Mortality and causes of death in systemic lupus erythematosus over the last decade: Data from a large population-based study. Eur J Intern Med. 2023 Jun;112:45-51. doi: 10.1016/j.ejim.2023.02.004. Epub 2023 Feb 9.

Reference Type BACKGROUND
PMID: 36774306 (View on PubMed)

Kidney Disease: Improving Global Outcomes (KDIGO) Lupus Nephritis Work Group. KDIGO 2024 Clinical Practice Guideline for the management of LUPUS NEPHRITIS. Kidney Int. 2024 Jan;105(1S):S1-S69. doi: 10.1016/j.kint.2023.09.002. No abstract available.

Reference Type BACKGROUND
PMID: 38182286 (View on PubMed)

Other Identifiers

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urinary congophilia in LN

Identifier Type: -

Identifier Source: org_study_id