Evidence map›Paper›PMID 24142388›Full record

ArticleClinical pharmacokinetics2014

Modelling the sitagliptin effect on dipeptidyl peptidase-4 activity in adults with haematological malignancies after umbilical cord blood haematopoietic cell transplantation.

Nieves Vélez de Mendizábal, Robert M Strother, Sherif S Farag, Hal E Broxmeyer, Steven Messina-Graham, Shripad D Chitnis, Robert R Bies

Open access · greenAbstract read
In one paragraph

Article in Clinical pharmacokinetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 31 citations in OpenAlex.

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  10. Enhancing the efficacy of engraftment of cord blood for hematopoietic cell transplantation.Transfusion and apheresis science : official journal of the World Apheresis Association : official journal of the European Society for Haemapheresis · 2016
    Review
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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

7 authors at 4 institutions in 2 countries.

Nieves Vélez de MendizábalDivision of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, 1001 W. 10th Street W7138, Indianapolis, IN, 46202, USA. nvelezde@iu.edu.
Robert M StrotherDivision of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, 1001 W. 10th Street W7138, Indianapolis, IN, 46202, USA.
Sherif S FaragDivision of Hematology-Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.
Hal E BroxmeyerDepartment of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, USA.
Steven Messina-GrahamDepartment of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, USA.
Shripad D ChitnisDivision of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, 1001 W. 10th Street W7138, Indianapolis, IN, 46202, USA.
Robert R BiesDivision of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, 1001 W. 10th Street W7138, Indianapolis, IN, 46202, USA.
Indiana University School of MedicineChristchurch Hospital · NZIndiana Clinical and Translational Sciences Institute · USIndiana University – Purdue University Indianapolis · US

Funding

Tumor Microenvironment and Metastasis ProgramP30CA082709 · NCI · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI Jun Wan · 1999 to 2026
$59.3M
Project-005U54DK106846 · NIDDK · INDIANA UNIVERSITY INDIANAPOLIS · PI Reuben Kapur, Karen Elizabeth Pollok · 2015 to 2026
$9.7M
REGULATION OF HEMATOPOIETIC CELL PRODUCTIONT32DK007519 · NIDDK · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI KAPLAN, MARK H · 1986 to 2020
$7.1M
Enhancing Engraftment of Cord Blood by CD26 InhibitionR01HL112669 · NHLBI · INDIANA UNIVERSITY INDIANAPOLIS · PI BROXMEYER, HAL E., FARAG, SHERIF S · 2012 to 2016
$3.6M
Indiana University Initiative for Maximizing Graduate Student DiversityR25GM079657 · NIGMS · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI BRUTKIEWICZ, RANDY R · 2007 to 2010
$1.4M
NCI NIH HHS P30 CA082709NHLBI NIH HHS R01 HL112669NHLBI NIH HHS R01HL112669NIDDK NIH HHS T32 DK007519NIDDK NIH HHS U54 DK106846NIGMS NIH HHS GM079657NIGMS NIH HHS R25 GM079657
6 · The paper itself

Abstract

BACKGROUND AND

objectivesDipeptidyl peptidase-4 (DPP4) inhibition is a potential strategy to increase the engraftment rate of haematopoietic stem/progenitor cells. A recent clinical trial using sitagliptin, a DPP4 inhibitor approved for type 2 diabetes mellitus, has been shown to be a promising approach in adults with haematological malignancies after umbilical cord blood (UCB) haematopoietic cell transplantation (HCT). On the basis of data from this clinical trial, a semi-mechanistic model was developed to simultaneously describe DPP4 activity after multiple doses of sitagliptin in subjects with haematological malignancies after a single-unit UCB HCT.

methodsThe clinical study included 24 patients who received myeloablative conditioning followed by oral sitagliptin with single-unit UCB HCT. Using a nonlinear mixed-effects approach, a semi-mechanistic pharmacokinetic-pharmacodynamic model was developed to describe DPP4 activity from these trial data, using NONMEM version 7.2 software. The model was used to drive Monte Carlo simulations to probe the various dosage schedules and the attendant DPP4 response.

resultsThe disposition of sitagliptin in plasma was best described by a two-compartment model. The relationship between sitagliptin concentrations and DPP4 activity was best described by an indirect response model with a negative feedback loop. Simulations showed that twice daily or three times daily dosage schedules were superior to a once daily schedule for maximal DPP4 inhibition at the lowest sitagliptin exposure.

conclusionThis study provides the first pharmacokinetic-pharmacodynamic model of sitagliptin in the context of HCT, and provides a valuable tool for exploration of optimal dosing regimens, which are critical for improving the time to engraftment in patients after UCB HCT.

Indexed as

Cord Blood Stem Cell TransplantationArea Under CurveDipeptidyl Peptidase 4Dipeptidyl-Peptidase IV InhibitorsDose-Response Relationship, DrugHematologic NeoplasmsHumansPopulationPyrazinesSitagliptin PhosphateTriazolesDipeptidyl Peptidase 4Dipeptidyl-Peptidase IV InhibitorsPyrazinesSitagliptin PhosphateTriazoles

Identifiers

PMID24142388
PMCPMC4133124
OpenAlexW2009801365

What OpenQuestion holds

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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.