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A Study to Examine Past Estimated Glomerular Filtration Rate (eGFR) Slope as a Risk Marker for Rapid Kidney Function Decline in People With Chronic Kidney Disease

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT04881448
Recruitment Status : Terminated (Recruitment challenges)
First Posted : May 11, 2021
Results First Posted : August 4, 2023
Last Update Posted : August 4, 2023
Information provided by (Responsible Party):
Boehringer Ingelheim

Brief Summary:
This study is intended to investigate the usefulness of estimated glomerular filtration rate (eGFR) slopes derived from retrospective routine clinical practice data, compare those retrospective slopes with those generated in a prospective fashion and successively identify rapidly progressing chronic kidney disease (CKD) patients.

Condition or disease Intervention/treatment Phase
Chronic Kidney Disease Diagnostic Test: collection of serum/capillary creatinine values Phase 2

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 223 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Evaluation of Homogeneity Between eGFR Slopes Derived From Retrospective Clinical Practice Data and eGFR Slopes Derived From Prospectively Collected, Protocol-driven Data
Actual Study Start Date : September 16, 2021
Actual Primary Completion Date : July 15, 2022
Actual Study Completion Date : July 15, 2022

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Kidney Diseases

Arm Intervention/treatment
Experimental: Patients with chronic kidney disease - overall population
Patients with chronic kidney disease (CKD), including patients with non-diabetic chronic kidney disease (non-DKD) and diabetic kidney disease (DKD). Participants in this study did not receive any medication or study drug.
Diagnostic Test: collection of serum/capillary creatinine values
collection of serum/capillary creatinine values

Primary Outcome Measures :
  1. Homogeneity (eGFR Slope Shift Table) Between eGFR Slopes Derived From Retrospective and Prospective eGFR Values [ Time Frame: Prospective slopes: All measurements from baseline until the last available visit were considered for inclusion in the estimation, including unscheduled visits, up to 48 weeks. Retrospective slopes: up to 66 months. ]

    Retrospective and prospective slopes were derived using a linear random slope model. The prospective estimated Glomerular Filtration Rate (eGFR) slope for each patient was derived using eGFR values in the prospective phase as the dependent variable and time in the prospective phase as the continuous independent variable with random intercept and random slope. The retrospective eGFR slope for each patient was derived similarly using the data in the retrospective phase, and the time in the retrospective phase calculated relative to the first retrospective measurement per patient.

    Homogeneity was primarily evaluated via a shift analysis with categories of eGFR decline rate of 1 to < 3 (slow) and >= 3 ml/min/1.73m2/year (fast), in each of the retrospective and prospective phases.

    eGFR data collected 4 weeks before acute kidney injury and up to 8 weeks after acute kidney injury, and eGFR data occurring after changes to baseline background therapy (SGLT2i/ACEi/ARB) were excluded.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Signed and dated written informed consent in accordance with International Council on Harmonisation - Good Manufacturing Practice (ICH-GCP) and local legislation prior to admission to the trial.
  2. Patients with available medical records for data abstraction to meet the objectives of the study.
  3. Male or female patients aged ≥ 18 years at time of consent.
  4. Body Mass Index (BMI) ≥ 18.5 and < 50 kg/m² at Visit 1.
  5. Clinical diagnosis of Chronic Kidney Disease (CKD).
  6. Estimated Glomerular Filtration Rate (eGFR) decline of at least 1ml/min/1.73m²/year based on historical data from (electronic) medical records.
  7. eGFR (Chronic Kidney Disease Epidemiology Collaboration [CKD-EPI] formula) 20 - 90 ml/min/1.73m² at Visit 1 calculated from serum creatinine measured by a central laboratory.
  8. Patients are expected to be on optimal and stable background treatment (according to local therapy guidelines).
  9. At least 4 serum creatinine values in the retrospective phase:

    • The most recent creatinine value not more than 6 months prior to Visit 1 (Screening Visit).
    • The most recent and oldest serum creatinine values should be no less than 1 year apart and no greater than 5 years apart.
    • There should be no gap of creatinine values of 2 years or longer.

Exclusion Criteria:

  1. Changes in CKD or other key background treatments (including dose changes) known to impact eGFR values, over the past 4 weeks for Angiotensin Converting Enzyme inhibitors (ACEis) and Angiotensin Receptor Blockers (ARBs) and 8 weeks for Sodium-Glucose Co-Transporter-2 (SGLT2) inhibitors prior to Screening.
  2. Autosomal Dominant Polycystic Kidney Disease (ADPKD), uncontrolled lupus nephritis, in the opinion of investigators.
  3. Any iv immune suppression therapy within the last 3 months prior to Visit 1 or anyone currently on >45 mg prednisolone (or equivalent).
  4. Acute kidney injury (AKI) according to the Kidney Disease: Improving Global Outcomes (KDIGO) definition in the 30 days prior to Visit 1 until the start of trial assessments.
  5. Planned start of chronic renal replacement therapy during the trial or end stage renal disease (i.e < 15 ml/min at 2 measurements 30 days apart) before start of trial assessments.
  6. Medical history of cancer or treatment for cancer in the last two years prior to Visit 1 (except appropriately treated basal cell carcinoma of the skin, in situ carcinoma of uterine cervix, and prostatic cancer of low grade [T1 or T2]).
  7. Major surgery (investigator's judgement) planned during the trial.
  8. Currently enrolled in an investigational device or drug trial, i.e., less than 30 days before Visit 1 since ending an investigational device or drug trial(s) or receiving investigational treatment(s).

Further exclusion criteria apply.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04881448

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Sponsors and Collaborators
Boehringer Ingelheim
  Study Documents (Full-Text)

Documents provided by Boehringer Ingelheim:
Study Protocol  [PDF] April 25, 2022
Statistical Analysis Plan  [PDF] October 17, 2022

Additional Information:
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Responsible Party: Boehringer Ingelheim Identifier: NCT04881448    
Other Study ID Numbers: 1366-0026
First Posted: May 11, 2021    Key Record Dates
Results First Posted: August 4, 2023
Last Update Posted: August 4, 2023
Last Verified: July 2023
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description:

After the study is completed and the primary manuscript is accepted for publishing, researchers can use this following link to request access to the clinical study documents regarding this study, and upon a signed "Document Sharing Agreement".

Also, Researchers can use the following link to find information in order to request access to the clinical study data, for this and other listed studies, after the submission of a research proposal and according to the terms outlined in the website.

The data shared are the raw clinical study data sets.

Supporting Materials: Study Protocol
Statistical Analysis Plan (SAP)
Clinical Study Report (CSR)
Time Frame: After all regulatory activities are completed in the US and EU for the product and indication, and after the primary manuscript has been accepted for publication.
Access Criteria: For study documents - upon signing of a 'Document Sharing Agreement'. For study data - 1. after the submission and approval of the research proposal (checks will be performed by both the independent review panel and the sponsor, including checking that the planned analysis does not compete with sponsor's publication plan); 2. and upon signing of a 'Data Sharing Agreement'.

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Kidney Diseases
Renal Insufficiency, Chronic
Urologic Diseases
Female Urogenital Diseases
Female Urogenital Diseases and Pregnancy Complications
Urogenital Diseases
Male Urogenital Diseases
Renal Insufficiency
Chronic Disease
Disease Attributes
Pathologic Processes