Evidence map›Paper›PMID 31999052›Full record

ArticlePharmacology research & perspectives2020

Treatment of Porphyromonas gulae infection and downstream pathology in the aged dog by lysine-gingipain inhibitor COR388.

Shirin Arastu-Kapur, Mai Nguyen, Debasish Raha, Florian Ermini, Ursula Haditsch, Joseph Araujo, Ines A M De Lannoy, Mark I Ryder, Stephen S Dominy, Casey Lynch and 1 more

Open access · goldAbstract read
In one paragraph

Article in Pharmacology research & perspectives, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Virulence · 2025
    Review
  6. Article
  7. Review
  8. Frontiers in cellular and infection microbiology · 2025
    Article
  9. Review
  10. Article
  11. Paradigm Shift: Multiple Potential Pathways to Neurodegenerative Dementia.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Article
  12. [Developments in Research on the Relationship BetweenSichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2023
    Review
  13. Article
  14. Review
  15. Review
  16. Review
  17. Review
  18. The Use of Antimicrobial and Antiviral Drugs in Alzheimer's Disease.International journal of molecular sciences · 2020
    Review
  19. 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

11 authors at 1 institution in 1 country.

Shirin Arastu-KapurCortexyme, Inc., South San Francisco, CA, USA.
Mai NguyenCortexyme, Inc., South San Francisco, CA, USA.
Debasish RahaCortexyme, Inc., South San Francisco, CA, USA.
Florian ErminiCortexyme, Inc., South San Francisco, CA, USA.
Ursula HaditschCortexyme, Inc., South San Francisco, CA, USA.
Joseph AraujoInterVivo Solutions, Toronto, ON, Canada.
Ines A M De LannoyInterVivo Solutions, Toronto, ON, Canada.
Mark I RyderUniversity of California San Francisco, San Francisco, CA, USA.
Stephen S DominyCortexyme, Inc., South San Francisco, CA, USA.ORCID 0000-0002-0816-9658
Casey LynchCortexyme, Inc., South San Francisco, CA, USA.
Leslie J HolsingerCortexyme, Inc., South San Francisco, CA, USA.
University of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

COR388, a small-molecule lysine-gingipain inhibitor, is currently being investigated in a Phase 2/3 clinical trial for Alzheimer's disease (AD) with exploratory endpoints in periodontal disease. Gingipains are produced by two species of bacteria, Porphyromonas gingivalis and Porphyromonas gulae, typically associated with periodontal disease and systemic infections in humans and dogs, respectively. P. gulae infection in dogs is associated with periodontal disease, which provides a physiologically relevant model to investigate the pharmacology of COR388. In the current study, aged dogs with a natural oral infection of P. gulae and periodontal disease were treated with COR388 by oral administration for up to 90 days to assess lysine-gingipain target engagement and reduction of bacterial load and downstream pathology. In a 28-day dose-response study, COR388 inhibited the lysine-gingipain target and reduced P. gulae load in saliva, buccal cells, and gingival crevicular fluid. The lowest effective dose was continued for 90 days and was efficacious in continuous reduction of bacterial load and downstream periodontal disease pathology. In a separate histology study, dog brain tissue showed evidence of P. gulae DNA and neuronal lysine-gingipain, demonstrating that P. gulae infection is systemic and spreads beyond its oral reservoir, similar to recent observations of P. gingivalis in humans. Together, the pharmacokinetics and pharmacodynamics of COR388 lysine-gingipain inhibition, along with reduction of bacterial load and periodontal disease in naturally occurring P. gulae infection in the dog, support the use of COR388 in targeting lysine-gingipain and eliminating P. gingivalis infection in humans.

Indexed as

Administration, OralAgingAnimalsBacterial LoadBacterial ProteinsBacteroidaceae InfectionsBrainDog DiseasesDogsGene Expression Regulation, BacterialGene Expression Regulation, EnzymologicGingipain Cysteine EndopeptidasesGingival Crevicular FluidOrganic ChemicalsPeriodontal DiseasesPorphyromonasBacterial ProteinsCOR388Gingipain Cysteine EndopeptidasesOrganic ChemicalsSmall Molecule LibrariesAlzheimer's diseasegingipain inhibitorperiodontal diseaseP. gingivalisP. gulae

Identifiers

PMID31999052
PMCPMC6990966
OpenAlexW3003669181

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.