Evidence map›Paper›PMID 27743205›Full record

Trial reportClinical pharmacokinetics2017

Population Pharmacokinetics of a Novel Once-Every 3 Months Intramuscular Formulation of Paliperidone Palmitate in Patients with Schizophrenia.

Mats O Magnusson, Mahesh N Samtani, Elodie L Plan, E Niclas Jonsson, Stefaan Rossenu, An Vermeulen, Alberto Russu

Abstract readClinical Trial, Phase IClinical Trial, Phase IIIRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Clinical pharmacokinetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
5.2field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 32 citations in OpenAlex.

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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 2 institutions in 2 countries.

Mats O MagnussonPharmetheus, U-A Science Park, Dag Hammarskjölds v. 52b, 752 37, Uppsala, Sweden. Mats.Magnusson@pharmetheus.com.
Mahesh N SamtaniJanssen Research & Development, LLC, Raritan, NJ, USA.
Elodie L PlanPharmetheus, U-A Science Park, Dag Hammarskjölds v. 52b, 752 37, Uppsala, Sweden.
E Niclas JonssonPharmetheus, U-A Science Park, Dag Hammarskjölds v. 52b, 752 37, Uppsala, Sweden.
Stefaan RossenuJanssen Research & Development, A Division of Janssen Pharmaceutica NV, Beerse, Belgium.
An VermeulenJanssen Research & Development, A Division of Janssen Pharmaceutica NV, Beerse, Belgium.
Alberto RussuJanssen Research & Development, A Division of Janssen Pharmaceutica NV, Beerse, Belgium.
Janssen (Belgium) · BEJanssen (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesOur objective was to characterize the population pharmacokinetics of paliperidone after intramuscular administration of its long-acting 3-month formulation palmitate ester at various doses and at different injection sites (deltoid and gluteal muscles).

methodsThis retrospective analysis included pooled data from 651 subjects from one phase I study (single injection of the 3-month formulation) and one phase III study (multiple injections of both 1- and 3-month formulations). A total of 8990 pharmacokinetic samples with valid concentration time points were available for this analysis. Nonlinear mixed-effects modelling of the pooled data was conducted using NONMEM software. Knowledge from a previously developed 1-month formulation model was used as a starting point to build the 3-month formulation model.

resultsThe final model describing the plasma concentrations after administration of the 3-month formulation was a one-compartment model with first-order elimination and two saturable absorption processes (rapid and slow). The apparent volume of distribution estimated for the 3-month formulation was not the same as for the previously modelled 1-month formulation. Apparent clearance (CL), apparent volume of distribution (V), and fraction of the absorbed dose (F

conclusionThe final model with two saturable absorption processes provided a good description of the pharmacokinetic characteristics of paliperidone after intramuscular administration of its long-acting 3-month formulation palmitate ester. In addition to the structural covariates (creatinine clearance on CL, body mass index on V, and injection volume on both absorption rates), injection site and sex were identified as covariates on k

Indexed as

AdolescentAdultAgedAntipsychotic AgentsDouble-Blind MethodDrug Administration ScheduleDrug CompoundingFemaleHumansInjections, IntramuscularMaleMiddle AgedPaliperidone PalmitateRetrospective StudiesSchizophreniaYoung AdultAntipsychotic AgentsPaliperidone Palmitate

Identifiers

PMID27743205
OpenAlexW2531013131

What OpenQuestion 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 OpenQuestion graph.