Evidence map›Paper›PMID 36165093›Full record

ArticleCPT: pharmacometrics & systems pharmacology2022

Population pharmacokinetic-pharmacodynamic analyses of amyloid positron emission tomography and plasma biomarkers for lecanemab in subjects with early Alzheimer's disease.

Seiichi Hayato, Osamu Takenaka, Sree Harsha Sreerama Reddy, Ishani Landry, Larisa Reyderman, Akihiko Koyama, Chad Swanson, Sanae Yasuda, Ziad Hussein

Open access · goldAbstract read
In one paragraph

Article in CPT: pharmacometrics & systems pharmacology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
3.8field-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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Alzheimer Combination Therapies: Overview and Scenarios.The journal of prevention of Alzheimer's disease · 2025
    Review
  10. Review
  11. Review
  12. Article
  13. Donanemab: Appropriate use recommendations.The journal of prevention of Alzheimer's disease · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Lecanemab.Hospital pharmacy · 2024
    Review
  20. 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

9 authors at 3 institutions in 3 countries.

Seiichi HayatoEisai Co., Ltd., Tokyo, Japan.ORCID 0000-0003-2691-2545
Osamu TakenakaEisai Co., Ltd., Tokyo, Japan.
Sree Harsha Sreerama ReddyEisai Inc., Nutley, New Jersey, USA.
Ishani LandryEisai Inc., Nutley, New Jersey, USA.
Larisa ReydermanEisai Inc., Nutley, New Jersey, USA.
Akihiko KoyamaEisai Inc., Nutley, New Jersey, USA.
Chad SwansonEisai Inc., Nutley, New Jersey, USA.
Sanae YasudaEisai Inc., Nutley, New Jersey, USA.
Ziad HusseinEisai Ltd., Hatfield, UK.
Eisai (United States) · USEisai (Japan) · JPEisai (United Kingdom) · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lecanemab is a humanized immunoglobulin G1 monoclonal antibody that selectively binds to soluble Aβ aggregate species, while demonstrating low affinity for Aβ monomer. This article describes the population pharmacokinetic (PK) and PK/pharmacodynamic (PD) analyses for amyloid plaques, as measured using positron emission tomography (PET), and biomarkers of amyloid pathology as evidenced by Aβ42/40 ratio and plasma p-tau181 following i.v. administration of lecanemab in subjects with early Alzheimer's disease. Lecanemab PKs were well-characterized with a two-compartment model with first-order elimination. Final PK model contained covariate effects of anti-drug antibody positive status, sex, body weight, and albumin on clearance. The time course of amyloid PET standard uptake ratio (SUVr), plasma Aβ42/40 ratio, and p-tau181 were described using indirect response models with lecanemab exposure as a maximum effect function stimulating the reduction of SUVr, and as a linear function increasing Aβ42/40 ratio and decreasing p-tau181 formation rates. PK/PD simulations show that 10 mg/kg biweekly dosing results in larger and faster decrease in SUVr and p-tau181 and increase in Aβ42/40 ratio as compared to 10 mg/kg monthly dose. Furthermore, the PK/PD simulations showed that after treatment discontinuation the brain amyloid re-accumulation to baseline levels is slow with a recovery half-life of ~4 years, whereas plasma Aβ42/40 ratio and p-tau181 return to baseline levels faster than amyloid. Given the relationship between changes in amyloid PET SUVr and soluble biomarkers, the developed PK/PD models can be used to inform lecanemab dose regimens in future clinical studies.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAntibodies, Monoclonal, HumanizedBiomarkersHumansPeptide FragmentsPositron-Emission TomographyAmyloid beta-PeptidesAntibodies, Monoclonal, HumanizedBiomarkerslecanemabPeptide Fragments

Identifiers

PMID36165093
PMCPMC9755918
OpenAlexW4297248924

What OpenQuestion holds

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LicenceCC BY-NC
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.