Evidence map›Paper›PMID 30291012›Full record

Trial reportAmerican journal of kidney diseases : the official journal of the National Kidney Foundation2019

Effects of Intensive Blood Pressure Lowering on Kidney Tubule Injury in CKD: A Longitudinal Subgroup Analysis in SPRINT.

Rakesh Malhotra, Timothy Craven, Walter T Ambrosius, Anthony A Killeen, William E Haley, Alfred K Cheung, Michel Chonchol, Mark Sarnak, Chirag R Parikh, Michael G Shlipak and 2 more

Registry-linked trialOpen access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in American journal of kidney diseases : the official journal of the National Kidney Foundation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04258397 (Trial of Pirfenidone to Prevent Progression in Chronic Kidney Disease), which is not on this map. Cited by 64 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 4 pooled it
11.9field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04258397 phase2unknown statusnot on this mapstarted 2020, after this paper: background citation

Trial of Pirfenidone to Prevent Progression in Chronic Kidney Disease (TOP-CKD)

TypeinterventionalSponsorVeterans Medical Research FoundationRan2020 to 2024Enrolled200ConditionsChronic Kidney DiseaseArmsPirfenidone, matching placebo
3 · Its place in the literature

Who cites it

64 citing papers in PubMed, 4 syntheses or guidelines pooled it, 128 citations in OpenAlex.

  1. Pooled it
  2. Urinary Biomarkers and Kidney Injury in VA NEPHRON-D: Phenotyping Acute Kidney Injury in Clinical Trials.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2024
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Plasma Biomarkers of Kidney Tubule Health during Ambulatory AKI and Kidney Function Recovery in SPRINT.Clinical journal of the American Society of Nephrology : CJASN · 2026
    Trial
  6. Trial
  7. Associations of Urine Biomarkers During Ambulatory Acute Kidney Injury With Subsequent Recovery in Kidney Function: Findings From the SPRINT Study.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2025
    Trial
  8. Trial
  9. Trial
  10. Trial
  11. Dietary sodium restriction decreases urinary NGAL in older adults with moderately elevated systolic blood pressure free from chronic kidney disease.Journal of investigative medicine : the official publication of the American Federation for Clinical Research · 2020
    Trial
  12. Trial
  13. Effect of Intensive Blood Pressure Lowering on Kidney Tubule Injury: Findings From the ACCORD Trial Study Participants.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2019
    Trial
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. SubgroupTE: Advancing Treatment Effect Estimation with Subgroup Identification.ACM transactions on intelligent systems and technology · 2025
    Article

4 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 10 institutions in 1 country.

Rakesh MalhotraDivision of Nephrology and Hypertension, Department of Medicine, University of California San Diego, San Diego, CA; Imperial Valley Family Care Medical Group, El Centro, CA.
Timothy CravenDepartment of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, NC.
Walter T AmbrosiusDepartment of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, NC.
Anthony A KilleenDepartment of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN.
William E HaleyDivision of Nephrology, Department of Medicine, Mayo Clinic, Jacksonville, FL.
Alfred K CheungDivision of Nephrology & Hypertension, Department of Internal Medicine, University of Utah; Medical Service, Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, UT.
Michel ChoncholDivision of Nephrology & Hypertension, Department of Medicine, University of Colorado, Denver, CO.
Mark SarnakDivision of Nephrology, Department of Medicine, Tufts Medical Center, Boston, MA.
Chirag R ParikhDivision of Nephrology, Department of Medicine, Yale University School of Medicine, New Haven, CT.
Michael G ShlipakDivision of General Internal Medicine, San Francisco VA Medical Center, San Francisco, CA; Kidney Health Research Collaborative, San Francisco VA Medical Center and University of California, San Francisco, CA.
Joachim H IxDivision of Nephrology and Hypertension, Department of Medicine, University of California San Diego, San Diego, CA; Division of Preventive Medicine, Department of Family Medicine and Public Health, University of California San Diego, San Diego, CA; Nephrology Section, Veterans Affairs San Diego Healthcare System, La Jolla, CA. Electronic address: joeix@ucsd.edu.
SPRINT Research Group
Wake Forest University · USSan Francisco VA Medical Center · USTufts Medical Center · USUniversity of California, San Diego · USUniversity of Colorado Denver · USUniversity of Minnesota · USVA Salt Lake City Healthcare System · USVA San Diego Healthcare System · USWinnMed · USYale University · US

Funding

INSTITUTIONAL CLINICAL AND TRANSLATIONAL SCIENCE AWARDUL1RR024134 · NCRR · UNIVERSITY OF PENNSYLVANIA · PI FITZGERALD, GARRET A · 2006 to 2011
$70.4M
University of Pittsburgh Clinical and Translational Science InstituteUL1TR000005 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$50.8M
Clinical and Translational Science Collaborative of ClevelandUL1TR000439 · NCATS · CASE WESTERN RESERVE UNIVERSITY · PI KONSTAN, MICHAEL W. · 2012 to 2016
$50.0M
Michigan Institute for Clinical and Health Research (MCHR)UL1TR000433 · NCATS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MASHOUR, GEORGE ALEXANDER · 2012 to 2016
$49.9M
The Vanderbilt Institute for Clinical and Translational Research (VICTR)UL1TR000445 · NCATS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BERNARD, GORDON RAPHAEL · 2012 to 2016
$41.4M
Institutional Clinical and Translational Science AwardUL1TR000003 · NCATS · UNIVERSITY OF PENNSYLVANIA · PI FITZGERALD, GARRET A · 2012 to 2015
$38.9M
Strengthening Stakeholder Engagement in Human Research Protections.UL1TR002003 · NCATS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI KARNIK, NIRANJAN SUBHASH, MERMELSTEIN, ROBIN J. · 2016 to 2024
$33.7M
Tufts Clinical and Translational Research InstituteUL1TR001064 · NCATS · TUFTS UNIVERSITY BOSTON · PI SELKER, HARRY P. · 2013 to 2017
$26.4M
University of Iowa Clinical and Translational Science Program (TL1)UL1RR025755 · NCRR · OHIO STATE UNIVERSITY · PI JACKSON, REBECCA D · 2008 to 2011
$26.3M
CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR025771 · NCRR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI CENTER, DAVID M. · 2008 to 2011
$17.6M
TUFTS CLINICAL AND TRANSLATION SCIENCE INSTITUTE (UL1): BPCAUL1RR025752 · NCRR · TUFTS UNIVERSITY BOSTON · PI SELKER, HARRY P. · 2008 to 2011
$17.6M
Clinical and Translational Science Institute at Children's NationalUL1TR000075 · NCATS · CHILDREN'S RESEARCH INSTITUTE · PI GUAY-WOODFORD, LISA MARIE · 2012 to 2015
$13.7M
NCATS NIH HHS UL1 TR000002NCATS NIH HHS UL1 TR000003NCATS NIH HHS UL1 TR000005NCATS NIH HHS UL1 TR000050NCATS NIH HHS UL1 TR000064NCATS NIH HHS UL1 TR000073NCATS NIH HHS UL1 TR000075NCATS NIH HHS UL1 TR000093NCATS NIH HHS UL1 TR000105NCATS NIH HHS UL1 TR000433NCATS NIH HHS UL1 TR000439NCATS NIH HHS UL1 TR000445NCATS NIH HHS UL1 TR001064NCRR NIH HHS UL1 RR024134NCRR NIH HHS UL1 RR025752NCRR NIH HHS UL1 RR025755NCRR NIH HHS UL1 RR025771NHLBI NIH HHS HHSN268200900040CNHLBI NIH HHS HHSN268200900046CNHLBI NIH HHS HHSN268200900047CNHLBI NIH HHS HHSN268200900048CNHLBI NIH HHS HHSN268200900049CNIDDK NIH HHS K24 DK110427NIDDK NIH HHS R01 DK098234NIGMS NIH HHS P30 GM103337
6 · The paper itself

Abstract

backgroundRandom assignment to the intensive systolic blood pressure (SBP) arm (<120mmHg) in the Systolic Blood Pressure Intervention Trial (SPRINT) resulted in more rapid declines in estimated glomerular filtration rates (eGFRs) than in the standard arm (SBP<140mmHg). Whether this change reflects hemodynamic effects or accelerated intrinsic kidney damage is unknown. STUDY

designLongitudinal subgroup analysis of clinical trial participants. SETTINGS &

participantsRandom sample of SPRINT participants with prevalent chronic kidney disease (CKD) defined as eGFR<60mL/min/1.73m OUTCOMES & MEASUREMENTS: Urine biomarkers of tubule function (β

results978 SPRINT participants (519 in the intensive and 459 in the standard arm) with prevalent CKD were included. Mean age was 72±9 years and eGFR was 46.1±9.4mL/min/1.73m LIMITATIONS: Exclusion of persons with diabetes, and few participants had advanced CKD.

conclusionsAmong participants with CKD in SPRINT, random assignment to the intensive SBP arm did not increase any levels of 8 urine biomarkers of tubule cell damage despite loss of eGFR. These findings support the hypothesis that eGFR declines in the intensive arm of SPRINT predominantly reflect hemodynamic changes rather than intrinsic damage to kidney tubule cells.

Indexed as

Glomerular Filtration RateAgedAged, 80 and overBiomarkersFemaleHumansHypertensionKidney TubulesMaleMiddle AgedRenal Insufficiency, ChronicBiomarkersblood pressure (BP)Chronic kidney disease (CKD)CKD progressioneGFR declineestimated glomerular filtration rate (eGFR)hemodynamicshypertensionintensive BP controlkidney tubule cellrenal perfusiontubular injuryurinary biomarkersurine

Identifiers

PMID30291012
PMCPMC7325694
OpenAlexW2895157652

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.