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ABO/Rh Blood Group Phenotypes as Predictor of Treatment Outcomes in Diabetic Kidney Disease

7. August 2026 aktualisiert von: Mostafa Farouk, Cairo University

ABO/Rh Blood Group Phenotypes as Independent Predictor of Treatment Outcomes in Diabetic Kidney Disease: A 1-Year Prospective Cohort Study

Background and aim: ABO blood groups are biologically plausible modulators of endothelial function, coagulation, and inflammation - pathways central to diabetic kidney disease (DKD). This study evaluates whether ABO/Rh phenotypes associate with differential treatment outcomes in DKD.

Methods: This 1-year prospective cohort study enrolled 161 adults with type 2 diabetes and established DKD (all receiving ACE-I/ARB plus SGLT2 inhibitors) from Cairo University outpatient clinics. eGFR, ACR, HbA1c, lipids, electrolytes, and blood pressure were assessed at baseline and one year. Percent changes in eGFR and ACR were calculated and the Kidney Failure Risk Equation estimated 2- and 5-year risk of progressing to end stage kidney disease. Multivariable linear regression identified independent predictors of renal outcome changes.

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Studientyp

Beobachtungs

Einschreibung (Tatsächlich)

161

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

    • KasrAlainy
      • Cairo, KasrAlainy, Ägypten, 11562
        • Faculty of Medicine

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Probenahmeverfahren

Nicht-Wahrscheinlichkeitsprobe

Studienpopulation

evident diabetic kidney disease defined as persistent albuminuria [Albumin/ creatinine ration (ACR) >30 mg/g Creatinine in two measurements with at least a 3-month difference], reduced eGFR (<60 mL/min/1.73 m²), or both and a documented history of type 2 diabetes mellitus for more than five years, as well as diabetic retinopathy classified according to the International Clinical Diabetic Retinopathy Scale of the American Academy of Ophthalmology

Beschreibung

Inclusion Criteria:

  • Adults aged ≥18 years with type 2 DM
  • Evident diabetic kidney disease
  • Recorded ABO blood group phenotypes
  • Receiving Angiotensin converting enzyme inhibitor (ACEI) or angiotensin receptor blockers (ARBs) in addition Sodium-glucose cotransporter 2 inhibitor (SGLT2i) as part of their ongoing therapy prior to enrolment.

Exclusion Criteria:

  • Pre-existed glomerular diseases or any other primary kidney disorder,
  • Active urinary sediment
  • Type 1 diabetes mellitus
  • Gestational diabetes
  • History of kidney transplantation
  • Documented episode of acute kidney injury,
  • Family history of non-diabetic forms of kidney disease
  • >30% declines in eGFR after initiation of RAAS inhibitors

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

Kohorten und Interventionen

Gruppe / Kohorte
Intervention / Behandlung
A Rh+
ABO Rh subgroup
Random mid stream spot urine samples were collected in sterile containers, and albumin to creatinine ratio (ACR) was measured using the Roche Cobas chemistry analyzer. Albuminuria was categorized according to Kidney Disease Improving Global Outcomes (KDIGO) criteria as A1 (<30 mg/g), A2 (30-300 mg/g), and A3 (>300 mg/g) . The Kidney Failure Risk Equation (KFRE) was applied to estimate the predicted 2 year and 5 year risk of progression to end stage renal disease using baseline eGFR and ACR values . Percent change in both eGFR and ACR was calculated using the formula: ((Post - Pre) / Pre) × 100 . Significant (accelerated) DKD progression was defined as a ≥25% sustained decline in eGFR over 12 months or an annual loss of ≥15 mL/min/1.73 m² , while rapid eGFR decline was defined as a reduction >5 mL/min/1.73 m² per year; end stage renal disease was defined as eGFR <15 mL/min/1.73 m² or initiation of dialysis therapy . Albumin to creatinine ratio (ACR) response was c
B Rh -
ABO Rh subgroup
Random mid stream spot urine samples were collected in sterile containers, and albumin to creatinine ratio (ACR) was measured using the Roche Cobas chemistry analyzer. Albuminuria was categorized according to Kidney Disease Improving Global Outcomes (KDIGO) criteria as A1 (<30 mg/g), A2 (30-300 mg/g), and A3 (>300 mg/g) . The Kidney Failure Risk Equation (KFRE) was applied to estimate the predicted 2 year and 5 year risk of progression to end stage renal disease using baseline eGFR and ACR values . Percent change in both eGFR and ACR was calculated using the formula: ((Post - Pre) / Pre) × 100 . Significant (accelerated) DKD progression was defined as a ≥25% sustained decline in eGFR over 12 months or an annual loss of ≥15 mL/min/1.73 m² , while rapid eGFR decline was defined as a reduction >5 mL/min/1.73 m² per year; end stage renal disease was defined as eGFR <15 mL/min/1.73 m² or initiation of dialysis therapy . Albumin to creatinine ratio (ACR) response was c
B Rh +
ABO Rh subgroup
Random mid stream spot urine samples were collected in sterile containers, and albumin to creatinine ratio (ACR) was measured using the Roche Cobas chemistry analyzer. Albuminuria was categorized according to Kidney Disease Improving Global Outcomes (KDIGO) criteria as A1 (<30 mg/g), A2 (30-300 mg/g), and A3 (>300 mg/g) . The Kidney Failure Risk Equation (KFRE) was applied to estimate the predicted 2 year and 5 year risk of progression to end stage renal disease using baseline eGFR and ACR values . Percent change in both eGFR and ACR was calculated using the formula: ((Post - Pre) / Pre) × 100 . Significant (accelerated) DKD progression was defined as a ≥25% sustained decline in eGFR over 12 months or an annual loss of ≥15 mL/min/1.73 m² , while rapid eGFR decline was defined as a reduction >5 mL/min/1.73 m² per year; end stage renal disease was defined as eGFR <15 mL/min/1.73 m² or initiation of dialysis therapy . Albumin to creatinine ratio (ACR) response was c
O Rh -
ABO Rh subgroup
Random mid stream spot urine samples were collected in sterile containers, and albumin to creatinine ratio (ACR) was measured using the Roche Cobas chemistry analyzer. Albuminuria was categorized according to Kidney Disease Improving Global Outcomes (KDIGO) criteria as A1 (<30 mg/g), A2 (30-300 mg/g), and A3 (>300 mg/g) . The Kidney Failure Risk Equation (KFRE) was applied to estimate the predicted 2 year and 5 year risk of progression to end stage renal disease using baseline eGFR and ACR values . Percent change in both eGFR and ACR was calculated using the formula: ((Post - Pre) / Pre) × 100 . Significant (accelerated) DKD progression was defined as a ≥25% sustained decline in eGFR over 12 months or an annual loss of ≥15 mL/min/1.73 m² , while rapid eGFR decline was defined as a reduction >5 mL/min/1.73 m² per year; end stage renal disease was defined as eGFR <15 mL/min/1.73 m² or initiation of dialysis therapy . Albumin to creatinine ratio (ACR) response was c
O Rh +
ABO Rh subgroup
Random mid stream spot urine samples were collected in sterile containers, and albumin to creatinine ratio (ACR) was measured using the Roche Cobas chemistry analyzer. Albuminuria was categorized according to Kidney Disease Improving Global Outcomes (KDIGO) criteria as A1 (<30 mg/g), A2 (30-300 mg/g), and A3 (>300 mg/g) . The Kidney Failure Risk Equation (KFRE) was applied to estimate the predicted 2 year and 5 year risk of progression to end stage renal disease using baseline eGFR and ACR values . Percent change in both eGFR and ACR was calculated using the formula: ((Post - Pre) / Pre) × 100 . Significant (accelerated) DKD progression was defined as a ≥25% sustained decline in eGFR over 12 months or an annual loss of ≥15 mL/min/1.73 m² , while rapid eGFR decline was defined as a reduction >5 mL/min/1.73 m² per year; end stage renal disease was defined as eGFR <15 mL/min/1.73 m² or initiation of dialysis therapy . Albumin to creatinine ratio (ACR) response was c
AB Rh -
ABO Rh subgroup
Random mid stream spot urine samples were collected in sterile containers, and albumin to creatinine ratio (ACR) was measured using the Roche Cobas chemistry analyzer. Albuminuria was categorized according to Kidney Disease Improving Global Outcomes (KDIGO) criteria as A1 (<30 mg/g), A2 (30-300 mg/g), and A3 (>300 mg/g) . The Kidney Failure Risk Equation (KFRE) was applied to estimate the predicted 2 year and 5 year risk of progression to end stage renal disease using baseline eGFR and ACR values . Percent change in both eGFR and ACR was calculated using the formula: ((Post - Pre) / Pre) × 100 . Significant (accelerated) DKD progression was defined as a ≥25% sustained decline in eGFR over 12 months or an annual loss of ≥15 mL/min/1.73 m² , while rapid eGFR decline was defined as a reduction >5 mL/min/1.73 m² per year; end stage renal disease was defined as eGFR <15 mL/min/1.73 m² or initiation of dialysis therapy . Albumin to creatinine ratio (ACR) response was c
AB Rh +
ABO Rh subgroup
Random mid stream spot urine samples were collected in sterile containers, and albumin to creatinine ratio (ACR) was measured using the Roche Cobas chemistry analyzer. Albuminuria was categorized according to Kidney Disease Improving Global Outcomes (KDIGO) criteria as A1 (<30 mg/g), A2 (30-300 mg/g), and A3 (>300 mg/g) . The Kidney Failure Risk Equation (KFRE) was applied to estimate the predicted 2 year and 5 year risk of progression to end stage renal disease using baseline eGFR and ACR values . Percent change in both eGFR and ACR was calculated using the formula: ((Post - Pre) / Pre) × 100 . Significant (accelerated) DKD progression was defined as a ≥25% sustained decline in eGFR over 12 months or an annual loss of ≥15 mL/min/1.73 m² , while rapid eGFR decline was defined as a reduction >5 mL/min/1.73 m² per year; end stage renal disease was defined as eGFR <15 mL/min/1.73 m² or initiation of dialysis therapy . Albumin to creatinine ratio (ACR) response was c

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
the progression or therapeutic response of diabetic kidney disease
Zeitfenster: 12 months
assessed by the magnitude of percentage change in ACR and percentage change in eGFR across ABO blood groups
12 months

Mitarbeiter und Ermittler

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Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

1. Mai 2024

Primärer Abschluss (Tatsächlich)

30. August 2025

Studienabschluss (Tatsächlich)

28. Februar 2026

Studienanmeldedaten

Zuerst eingereicht

5. August 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

7. August 2026

Zuerst gepostet (Tatsächlich)

11. August 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

11. August 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

7. August 2026

Zuletzt verifiziert

1. August 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • N 379 2025

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Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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