Evidence map›Paper›PMID 31314925›Full record

ArticleClinical pharmacology and therapeutics2020

Pharmacokinetic and Pharmacodynamic Effects of a γ-Secretase Modulator, PF-06648671, on CSF Amyloid-β Peptides in Randomized Phase I Studies.

Jae Eun Ahn, Charles Carrieri, Fernando Dela Cruz, Terence Fullerton, Eva Hajos-Korcsok, Ping He, Constantino Kantaridis, Claire Leurent, Richann Liu, Jessica Mancuso and 2 more

3 registry-linked trialsOpen access · hybridAbstract read
In one paragraph

Article in Clinical pharmacology and therapeutics, 2020. 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 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.1field-weighted citation impact, top 13% 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.

NCT02316756 phase1completednot on this map

A Phase 1, Randomized, Double-blind, Sponsor-open, Placebo-controlled First-in-human Trial To Evaluate The Safety, Tolerability, Pharmacokinetics And Pharmacodynamics Of Pf-06648671 After Administration Of Single Ascending Doses To Fasted And Fed Healthy Subjects

TypeinterventionalSponsorPfizerRan2014 to 2015Enrolled18ConditionsHealthy SubjectsArmsPF-06648671, Placebo
NCT02407353 phase1completednot on this map

A Phase 1 Investigator-and-subject Blind, Randomized, Placebo Controlled, Parallel Study In Healthy Subjects To Evaluate The Pharmacodynamic Effects Of Single Oral Doses Of Pf-06648671 On Aβ Concentrations In Cerebrospinal Fluid Using Serial Sampling Methodology

TypeinterventionalSponsorPfizerRan2015 to 2016Enrolled22ConditionsHealthy SubjectsArmsPF-06648671, Placebo
NCT02440100 phase1completednot on this map

An Investigator-and-subject Blind, Phase 1 Study To Characterize The Safety, Tolerability, Pharmacokinetics, And Pharmacodynamics Of Repeat Doses Of Pf-06648671 In Healthy Adult Subjects And Healthy Elderly Subjects

TypeinterventionalSponsorPfizerRan2015 to 2016Enrolled92ConditionsHealthy Adult Subjects and Healthy Elderly SubjectsArmsPF-06648671, Midazolam, Placebo
3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 32 citations in OpenAlex.

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  14. γ-Secretase in Alzheimer's disease.Experimental & molecular medicine · 2022
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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

12 authors at 2 institutions in 2 countries.

Jae Eun AhnPfizer Inc, Cambridge, Massachusetts, USA.
Charles CarrieriPfizer Inc, Cambridge, Massachusetts, USA.
Fernando Dela CruzPfizer Inc, Cambridge, Massachusetts, USA.
Terence FullertonPfizer Inc, Cambridge, Massachusetts, USA.
Eva Hajos-KorcsokPfizer Inc, Cambridge, Massachusetts, USA.
Ping HePfizer Inc, Cambridge, Massachusetts, USA.
Constantino KantaridisBrussels CRU, Pfizer Inc, Brussels, Belgium.
Claire LeurentPfizer Inc, Cambridge, Massachusetts, USA.
Richann LiuPfizer Inc, Cambridge, Massachusetts, USA.
Jessica MancusoPfizer Inc, Cambridge, Massachusetts, USA.
Laure Mendes da CostaBrussels CRU, Pfizer Inc, Brussels, Belgium.
Ruolun QiuPfizer Inc, Cambridge, Massachusetts, USA.
Pfizer (United States) · USPfizer (Belgium) · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

γ-Secretase modulators (GSMs) represent a promising therapy for Alzheimer's disease by reducing pathogenic amyloid-β (Aβ) peptide production. Three phase I studies (NCT02316756, NCT02407353, and NCT02440100) investigated the safety/tolerability, pharmacokinetics (PKs), and pharmacodynamics (PDs) of the oral GSM, PF-06648671. A PK/PD indirect-response model was developed (using biomarker data) to simultaneously characterize differential effects of PF-06648671 on multiple Aβ species in cerebrospinal fluid (CSF). Healthy subjects (n = 120) received single doses or multiple-ascending doses of PF-06648671/placebo for 14 days. No serious adverse events occurred; severe adverse eventswere deemed not drug related. PF-06648671 decreased Aβ42 and Aβ40 concentrations in CSF, with greater effects on Aβ42, and increased Aβ37 and Aβ38 levels, particularly Aβ37. No significant change in total Aβ was observed. The PK/PD model well described the tendency of observed CSF Aβ data and the steady-state effects of PF-06648671, supporting its use for predicting central Aβ effects and optimal dose selection for GSMs in future trials.

Indexed as

Models, BiologicalAdolescentAdultAgedAged, 80 and overAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesClinical Trials, Phase I as TopicDose-Response Relationship, DrugFemaleHumansMaleMiddle AgedRandomized Controlled Trials as TopicYoung AdultAmyloid beta-PeptidesAmyloid Precursor Protein Secretases

Identifiers

PMID31314925
PMCPMC6977340
OpenAlexW2961174618

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.