Evidence map›Paper›PMID 11041564›Full record

Trial reportBone marrow transplantation2000

Tacrolimus clearance is age-dependent within the pediatric population.

D Przepiorka, D Blamble, S Hilsenbeck, M Danielson, R Krance, K W Chan

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Bone marrow transplantation, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
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

24 citing papers in PubMed.

  1. Trial
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  13. Risk Factors for Subtherapeutic Tacrolimus Levels after Conversion from Continuous Intravenous Infusion to Oral in Children after Allogeneic Hematopoietic Cell Transplantation.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2016
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  14. Article
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  17. Age and CYP3A5 genotype affect tacrolimus dosing requirements after transplant in pediatric heart recipients.The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation · 2011
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  19. 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

6 authors.

D PrzepiorkaBaylor College of Medicine Center for Cell and Gene Therapy, Houston, Texas 77030, USA.
D Blamble
S Hilsenbeck
M Danielson
R Krance
K W Chan

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

For prevention of graft-versus-host disease, the consensus initial intravenous dose of tacrolimus for adults is 0.03 mg/kg/day. Whether target whole blood concentrations of tacrolimus in children undergoing hematopoietic stem cell transplantation can be achieved reproducibly with this dose is not known. We reviewed the tacrolimus blood levels and calculated clearances for 55 children (aged 6 months to 18 years, median 9 years) using tacrolimus after allogeneic marrow, blood stem cell or cord blood transplantation. The tacrolimus dose regimen was 0.03 mg/kg/day by continuous infusion starting on day -1 or day -2. At the first sampling in the peritransplant period, 71% of the tacrolimus blood levels were within the target range of 5-15 ng/ml, 87% were in the safe range of 5-20 ng/ml, 9% were toxic, and 4% were subtherapeutic. Twenty-five children were converted to oral drug using the recommended oral/intravenous dose ratio of 4.0. At the first sampling after oral conversion, 80% were in the target range, and 20% were subtherapeutic. Clearance of tacrolimus was calculated from the blood levels for patients during intravenous dosing and normalized by ideal body weight. There was a decreased clearance over the first 2 weeks only for the children >12 years old (P = 0.014). The initial calculated clearances of tacrolimus did not differ between age groups, but at steady state the mean tacrolimus clearance (+/- s.d.) was higher for those <6 years old (0.159+/-0.082 l/h/kg) than for those 6-12 years old (0.109+/-0.053 l/h/kg) or >12 years old (0.104 +/-0.068 l/h/kg). Children <6 years old undergoing hematopoietic stem cell transplantation have a higher weight-normalized tacrolimus clearance than older children and adults, and careful therapeutic monitoring is needed in the first 2 weeks after transplantation to avoid prolonged subtherapeutic dosing for this age group.

Indexed as

Administration, OralAdolescentAgingChildChild, PreschoolDrug Administration ScheduleFemaleGraft vs Host DiseaseHematopoietic Stem Cell TransplantationHumansImmunosuppressive AgentsInfantInfusions, IntravenousMaleTacrolimusImmunosuppressive AgentsTacrolimus

Identifiers

PMID11041564

What Socratic holds

Textmetadata
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 Socratic graph.