Evidence map›Paper›PMID 31424395›Full record

Trial reportJournal of Alzheimer's disease : JAD2019

Safety, Tolerability, Pharmacokinetics, and Pharmacodynamic Effects of PF-06751979, a Potent and Selective Oral BACE1 Inhibitor: Results from Phase I Studies in Healthy Adults and Healthy Older Subjects.

Ruolun Qiu, Jae Eun Ahn, Robert Alexander, Michael A Brodney, Ping He, Claire Leurent, Jessica Mancuso, Richard A Margolin, Ekaterina Tankisheva, Danny Chen

3 registry-linked trialsOpen access · hybridAbstract readClinical Trial, Phase IRandomized Controlled Trial
In one paragraph

Trial report in Journal of Alzheimer's disease : JAD, 2019. 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 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.8field-weighted citation impact, top 8% 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.

NCT02509117 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-06751979 After Oral Administration Of Single And Multiple Ascending Doses To Healthy Adult And Elderly Subjects

TypeinterventionalSponsorPfizerRan2015 to 2016Enrolled55ConditionsHealthy SubjectsArmsPF-06751979 single ascending dose, Placebo single dose, PF-06751979 multiple ascending dose, Placebo multiple dose, PF-06751979 multiple dose
NCT02793232 phase1completednot on this map

A 3-part Phase 1, Randomized, Double-blind, Sponsor-open, Placebo Controlled Trial To Evaluate The Safety, Tolerability, Food Effect, Pharmacokinetics And Pharmacodynamics Of Pf-06751979 After Oral Administration: Part A - Single Ascending Doses In Healthy Adults; Part B - Multiple Ascending Doses In Healthy Adults; And Part C - Multiple Doses To Older Subjects

TypeinterventionalSponsorPfizerRan2016 to 2017Enrolled46ConditionsHealthy SubjectsArmsPF-06751979 single dose, Placebo single dose, PF-06751979 multiple ascending dose, Placebo multiple ascending dose, PF-06751979 multiple dose
NCT03126721 phase1completednot on this map

A Phase 1, Open-label, Fixed-sequence Design Study To Assess The Effect Of Multiple Dose Administration Of Pf-06751979 On The Single Dose Pharmacokinetics Of Oral Midazolam In Healthy Adult Subjects

TypeinterventionalSponsorPfizerRan2017 to 2017Enrolled12ConditionsHealthyArmsmidazolam, PF-06751979
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. A TNF receptor 2 agonist ameliorates neuropathology and improves cognition in an Alzheimer's disease mouse model.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  8. Disease-Modifying Therapies for Alzheimer's Disease: More Questions than Answers.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Review
  9. Review
  10. Sulfur-containing therapeutics in the treatment of Alzheimer's disease.Medicinal chemistry research : an international journal for rapid communications on design and mechanisms of action of biologically active agents · 2021
    Article
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

10 authors at 7 institutions in 2 countries.

Ruolun QiuPfizer Inc, Cambridge, MA, USA.
Jae Eun AhnPfizer Inc, Cambridge, MA, USA.
Robert AlexanderTakeda Pharmaceuticals International Co, Cambridge, MA, USA.
Michael A BrodneyVertex Pharmaceuticals, Boston, MA, USA.
Ping HeBiogen Inc, Cambridge, MA, USA.
Claire LeurentSamsung Ventures, Boston, MA, USA.
Jessica MancusoPfizer Inc, Cambridge, MA, USA.
Richard A MargolinClinical Research Solutions LLC, Cambridge, MA, USA.
Ekaterina TankishevaPfizer Clinical Research Unit Brussels, Belgium.
Danny ChenPfizer Inc, Cambridge, MA, USA.
Pfizer (United States) · USBiogen (United States) · USClinical Research Solutions · USPfizer (Belgium) · BESamsung (United States) · USTakeda (United States) · USVertex Pharmaceuticals (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PF-06751979 is a selective inhibitor of the beta-site amyloid precursor protein cleaving enzyme-1, which is a key aspartyl protease in the generation of amyloid-β (Aβ) peptides, thought to be critical for the cerebral degeneration observed in Alzheimer's disease. Two Phase I studies (NCT02509117, NCT02793232) investigated the safety/tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of PF-06751979. Single-ascending doses up to 540 mg and multiple-ascending doses up to 275 mg once daily (QD) in healthy adults, and multiple doses of 50 mg or 125 mg QD in healthy older subjects were assessed. PF-06751979 was well tolerated at all doses given, and all treatment-related adverse events (AEs) were mild to moderate. PK parameters remained consistent across the PF-06751979 QD dosing regimens, and no notable food effects were observed. PD analysis showed that PF-06751979 reduced the cerebrospinal fluid (CSF) and plasma levels of Aβ peptides in a dose-dependent manner, with the greatest reductions observed in subjects treated with 275 mg QD (approximately 92% and 93% reduction in CSF Aβ1-40 and Aβ1-42 observed at 24 h after Day 14 dose, respectively). A drug interaction study (NCT03126721) using midazolam indicated that there was no clinically meaningful effect of multiple doses of PF-06751979 100 mg QD on the PK of single-dose midazolam in healthy adults. Overall, these data suggest that PF-06751979 with daily dosing is favorable for further clinical development.

Indexed as

Protease InhibitorsPyransThiazinesThiazolesAdministration, OralAdolescentAdultAgedAged, 80 and overAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAspartic Acid EndopeptidasesCross-Over StudiesDouble-Blind MethodFemaleHealthy VolunteersAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAspartic Acid EndopeptidasesBACE1 protein, humanPF-06751979Protease InhibitorsPyransThiazinesThiazolesAlzheimer’s diseaseamyloid-β peptidesBACE1 protein-humanpharmacodynamicspharmacokineticsPhase Isafetytolerability

Identifiers

PMID31424395
PMCPMC6839502
OpenAlexW2968653314

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.