Evidence mapPaperPMID 24423149Full record

Trial reportCardiovascular diabetology2014

Effects of saxagliptin on early microvascular changes in patients with type 2 diabetes.

Christian Ott, Ulrike Raff, Stephanie Schmidt, Iris Kistner, Stefanie Friedrich, Peter Bramlage, Joanna M Harazny, Roland E Schmieder

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

Trial report in Cardiovascular diabetology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01319357 (Effects of Saxagliptin on Endothelial Function in Patients With Type 2 Diabetes), which is not on this map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 pooled it
7.4field-weighted citation impact, top 2% 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.

NCT01319357 phase3completednot on this map

Effects of Saxagliptin on Endothelial Function in Patients With Type 2 Diabetes

TypeinterventionalSponsorUniversity of Erlangen-Nürnberg Medical SchoolRan2010 to 2013Enrolled52ConditionsDiabetes Mellitus Type 2ArmsSaxagliptin, Placebo
3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 2 syntheses or guidelines pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Effect of Linagliptin on Vascular Function: A Randomized, Placebo-controlled Study.The Journal of clinical endocrinology and metabolism · 2016
    Trial
  6. Article
  7. Article
  8. Incretin-based therapy: a new horizon in diabetes management.Journal of diabetes and metabolic disorders · 2024
    Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Vasculoprotective Effects of Vildagliptin. Focus on Atherogenesis.International journal of molecular sciences · 2020
    Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. 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

8 authors at 3 institutions in 2 countries.

Christian Ott
Ulrike Raff
Stephanie Schmidt
Iris Kistner
Stefanie Friedrich
Peter Bramlage
Joanna M Harazny
Roland E SchmiederDepartment of Nephrology and Hypertension, University of Erlangen-Nuremberg, Ulmenweg 18, Erlangen, Germany. roland.schmieder@uk-erlangen.de.
Friedrich-Alexander-Universität Erlangen-Nürnberg · DEIPPMed (Germany) · DEUniversity of Warmia and Mazury in Olsztyn · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with diabetes mellitus are at increased risk for microvascular complications. Early changes in microcirculation are characterized by hyperperfusion (e.g. in the retina and kidney) and increased pulse wave reflection leading to increased aortic pressure. We investigated the effects of the DPP-4-inhibitor saxagliptin on early retinal microvascular changes.

methodsIn this double-blind, controlled, cross-over trial 50 patients (without clinical signs of microvascular alterations) with type-2 diabetes (mean duration of 4 years) were randomized to receive placebo or 5 mg saxagliptin for 6 weeks. Retinal arteriolar structure and retinal capillary flow (RCF) at baseline and during flicker-light exposure was assessed by scanning laser Doppler flowmetry. Central hemodynamics were assessed by pulse wave analysis.

resultsPostprandial blood glucose (9.27 ± 0.4 versus 10.1 ± 0.4 mmol/L; p = 0.001) and HbA1c (6.84 ± 0.15 (51 ± 1.6) versus 7.10 ± 0.17% (54 ± 1.9 mmol/mol); p < 0.001) were significantly reduced with saxagliptin treatment compared to placebo. RCF was significantly reduced after treatment with saxagliptin (288 ± 13.2 versus 314 ± 14.1 AU; p = 0.033). This was most pronounced in a subgroup of patients (n = 32) with a fall in postprandial blood glucose (280 ± 12.1 versus 314 ± 16.6 AU; p = 0.011). No significant changes in RCF were seen during flicker-light exposure between placebo and saxagliptin, but the vasodilatory capacity increased two-fold with saxagliptin treatment. Central augmentation pressure tended to be lower after treatment with saxagliptin (p = 0.094), and central systolic blood pressure was significantly reduced (119 ± 2.3 versus 124 ± 2.3 mmHg; p = 0.038).

conclusionsOur data suggest that treatment with saxagliptin for 6 weeks normalizes retinal capillary flow and improves central hemodynamics in type-2 diabetes.

trial registrationThe study was registered at (ID: NCT01319357).

Indexed as

AdamantaneAgedBlood Flow VelocityCross-Over StudiesDiabetes Mellitus, Type 2DipeptidesDipeptidyl-Peptidase IV InhibitorsDouble-Blind MethodFemaleHumansMaleMicrovesselsMiddle AgedRetinal VesselsTreatment OutcomeVasodilationAdamantaneDipeptidesDipeptidyl-Peptidase IV Inhibitorssaxagliptin

Identifiers

PMID24423149
PMCPMC3897922
OpenAlexW2141389470

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

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 Socratic graph.