Evidence map›Paper›PMID 30796122›Full record

ArticleBMJ open2019

Can we IMPROVE cardiovascular outcomes through phosphate lowering in CKD? Rationale and protocol for the IMpact of Phosphate Reduction On Vascular End-points in Chronic Kidney Disease (IMPROVE-CKD) study.

Nicole Lioufas, Nigel D Toussaint, Eugenia Pedagogos, Grahame Elder, Sunil V Badve, Elaine Pascoe, Andrea Valks, Carmel Hawley, IMPROVE-CKD Writing Committee.

Open access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Effect of lanthanum carbonate on serum calciprotein particles in patients with stage 3-4 CKD-results from a placebo-controlled randomized trial.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2023
    Trial
  4. Trial
  5. Article
  6. Chronic Kidney Disease-associated Lung Injury Is Mediated by Phosphate-induced MAPK/AKT Signaling.American journal of respiratory cell and molecular biology · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Targeting Vascular Calcification in Chronic Kidney Disease.JACC. Basic to translational science · 2020
    Review
  14. Review
  15. Dual Inhibition of Gastrointestinal Phosphate Absorption: More Questions Than Answers.Journal of the American Society of Nephrology : JASN · 2019
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 6 institutions in 1 country.

Nicole LioufasDepartment of Nephrology, Royal Melbourne Hospital, Melbourne, Victoria, Australia.
Nigel D ToussaintDepartment of Nephrology, Royal Melbourne Hospital, Melbourne, Victoria, Australia.
Eugenia PedagogosEpworth Healthcare, Melbourne, Victoria, Australia.
Grahame ElderDepartment of Renal Medicine, Westmead Hospital, Sydney, New South Wales, Australia.
Sunil V BadveDepartment of Nephrology, St. George Hospital, Sydney, New South Wales, Australia.
Elaine PascoeFaculty of Medicine, University of Queensland, Brisbane, Queensland, Australia.
Andrea ValksUniversity of Queensland, Australasian Kidney Trials Network, Brisbane, Queensland, Australia.
Carmel HawleyFaculty of Medicine, University of Queensland, Brisbane, Queensland, Australia.
IMPROVE-CKD Writing Committee.
Kidney Health Australia · AUThe Royal Melbourne Hospital · AUEpworth Hospital · AUSt George Hospital · AUThe University of Queensland · AUWestmead Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPatients with chronic kidney disease (CKD) are at heightened cardiovascular risk, which has been associated with abnormalities of bone and mineral metabolism. A deeper understanding of these abnormalities should facilitate improved treatment strategies and patient-level outcomes, but at present there are few large, randomised controlled clinical trials to guide management. Positive associations between serum phosphate and fibroblast growth factor 23 (FGF-23) and cardiovascular morbidity and mortality in both the general and CKD populations have resulted in clinical guidelines suggesting that serum phosphate be targeted towards the normal range, although few randomised and placebo-controlled studies have addressed clinical outcomes using interventions to improve phosphate control. Early preventive measures to reduce the development and progression of vascular calcification, left ventricular hypertrophy and arterial stiffness are crucial in patients with CKD. METHODS AND ANALYSIS: We outline the rationale and protocol for an international, multicentre, randomised parallel-group trial assessing the impact of the non-calcium-based phosphate binder, lanthanum carbonate, compared with placebo on surrogate markers of cardiovascular disease in a predialysis CKD population-the ETHICS AND DISSEMINATION: Ethical approval for the IMPROVE-CKD trial was obtained by each local Institutional Ethics Committee for all 17 participating sites in Australia, New Zealand and Malaysia prior to study commencement. Results of this clinical trial will be published in peer-reviewed journals and presented at conferences. TRIAL REGISTRATION NUMBER: ACTRN12610000650099.

Indexed as

Cardiovascular DiseasesHyperphosphatemiaPhosphatesRenal Insufficiency, ChronicAdultDouble-Blind MethodFemaleFibroblast Growth Factor-23Fibroblast Growth FactorsHumansLanthanumMaleMulticenter Studies as TopicParathyroid HormoneRandomized Controlled Trials as TopicFGF23 protein, humanFibroblast Growth Factor-23Fibroblast Growth FactorsLanthanumlanthanum carbonateParathyroid HormonePhosphatesckd-mbdmineral metabolismphosphatepulse wave velocityrandomized controlled trialvascular calcification

Identifiers

PMID30796122
PMCPMC6398689
OpenAlexW2916650669

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.