Evidence map›Paper›PMID 18332283›Full record

SynthesisHypertension (Dallas, Tex. : 1979)2008

Pediatric antihypertensive trial failures: analysis of end points and dose range.

Daniel K Benjamin, P Brian Smith, Pravin Jadhav, Jogarao V Gobburu, M Dianne Murphy, Vic Hasselblad, Carissa Baker-Smith, Robert M Califf, Jennifer S Li

3 registry-linked trialsAbstract readMeta-Analysis
In one paragraph

Synthesis in Hypertension (Dallas, Tex. : 1979), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 37 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 2 pooled it
–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.

NCT06012266 phase2unknown statusstarted 2024, after this paper: background citation

Dose Rationale for Dapagliflozin and Empagliflozin in Paediatric Heart Failure: a Phase II.a Pharmacokinetics, Ease-of-swallow, Safety and Proof-of-concept Study Among Children 6-18 Years of Age

Ran2024Enrolled12Registered outcomes19Posted comparisons0ConditionsHeart FailureArmsDapagliflozin Tablet, Empagliflozin Tablets
Open the trial in the graph
NCT01070342 completednot on this mapstarted 2010, after this paper: background citation

Methodological Improvement in Measuring Efficacy Outcome in Antihypertensive Trials in Children

TypeobservationalSponsorUniversity Hospitals Cleveland Medical CenterRan2010 to 2011Enrolled170ConditionsBlood PressureArmsSpacelabs 90217
NCT04752293 recruitingnot on this mapstarted 2021, after this paper: background citation

Pediatric Hypertension and the Renin-Angiotensin SystEm (PHRASE): The Role of Angiotensin-(1-7) in Hypertension and Hypertension-Induced Heart and Kidney Damage

TypeobservationalSponsorWake Forest University Health SciencesRan2021 to 2026Enrolled125ConditionsHypertension, Left Ventricular Hypertrophy, Left Ventricular Dysfunction, Left Atrial Dilatation
3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pharmacological interventions for hypertension in children.The Cochrane database of systematic reviews · 2014
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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

9 authors.

Daniel K BenjaminOffice of Pediatric Therapeutics, US Food and Drug Administration, Rockville, MD, USA. danny.benjamin@duke.edu
P Brian Smith
Pravin Jadhav
Jogarao V Gobburu
M Dianne Murphy
Vic Hasselblad
Carissa Baker-Smith
Robert M Califf
Jennifer S Li

Funding

Pilot Project for the DTMI CRA ProgramUL1RR024128 · NCRR · DUKE UNIVERSITY · PI CALIFF, ROBERT M · 2006 to 2010
$48.1M
North Carolina Collaborative PPRU NetworkU10HD045962 · NICHD · DUKE UNIVERSITY · PI BENJAMIN, DANIEL K. · 2004 to 2009
$2.1M
NCRR NIH HHS 1UL1RR024128-01NCRR NIH HHS UL1 RR024128NICHD NIH HHS 1U10-HD45962-04NICHD NIH HHS U10 HD045962
6 · The paper itself

Abstract

Historically, drugs prescribed for children have not been studied in pediatric populations. Since 1997, however, a 6-month extension of marketing rights is granted if manufacturers conduct Food and Drug Administration-defined pediatric trials. In nearly half of the drugs studied, there were unexpected results in dosing, safety, or efficacy compared with adult studies, including failure of half of the antihypertensive dose-response trials, which are pivotal for deriving dosing recommendations. We sought to define design elements that might have contributed to these trial failures by combining patient-level data from 6 dose-ranging antihypertensive efficacy trials completed for pediatric exclusivity and submitted to the Food and Drug Administration from 1998 to 2005. We evaluated dosing, primary end point, and other components to assess underlying reasons for failure to show efficacy in children. Of 6 trials examined, 3 showed a dose response; 3 did not. Eligibility criteria were similar across studies, as were subject demographics. Successful studies showed large differences in doses, with little or no overlap between low, medium, and high doses; failed trials used narrow dose ranges with considerable overlap. Successful trials also provided pediatric formulations and used reduction in diastolic, not systolic, blood pressure as the primary end point. Careful attention to pediatric pharmacology and selection of primary end points can improve trial performance. We found poor dose selection, lack of acknowledgement of differences between adult and pediatric populations, and lack of pediatric formulations to be associated with failures. More importantly, our ability to combine data across trials allowed us to evaluate and potentially improve trial design.

Indexed as

AdolescentAntihypertensive AgentsBlood PressureBody WeightChildDatabases, FactualDose-Response Relationship, DrugHumansHypertensionRandomized Controlled Trials as TopicTreatment FailureUnited StatesUnited States Food and Drug AdministrationAntihypertensive Agents

Identifiers

PMID18332283
PMCPMC2782749

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.