Evidence map›Paper›PMID 32094456›Full record

ArticleScientific reports2020

Development of the clinical candidate PBD-C06, a humanized pGlu3-Aβ-specific antibody against Alzheimer's disease with reduced complement activation.

Thore Hettmann, Stephen D Gillies, Martin Kleinschmidt, Anke Piechotta, Koki Makioka, Cynthia A Lemere, Stephan Schilling, Jens-Ulrich Rahfeld, Inge Lues

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.3field-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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Immunotherapies: A Treasure Trove of Alzheimer's Disease.Current pharmaceutical biotechnology · 2025
    Review
  6. Review
  7. Screening of [ACS pharmacology & translational science · 2024
    Article
  8. The complement system in neurodegenerative diseases.Clinical science (London, England : 1979) · 2024
    Article
  9. Article
  10. Review
  11. The Complement System, Aging, and Aging-Related Diseases.International journal of molecular sciences · 2022
    Review
  12. Review
  13. Review
  14. Complement System in Alzheimer's Disease.International journal of molecular sciences · 2021
    Review
  15. Article
  16. Focused ultrasound with anti-pGlu3 Aβ enhances efficacy in Alzheimer's disease-like mice via recruitment of peripheral immune cells.Journal of controlled release : official journal of the Controlled Release Society · 2021
    Article
  17. Article
  18. 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 2 countries.

Thore HettmannVivoryon Therapeutics AG, Weinbergweg 22, 06120, Halle (Saale), Germany.
Stephen D GilliesProvenance Biopharmaceuticals, 70 Bedford Rd, Carlisle, MA, 01741, USA.
Martin KleinschmidtFraunhofer Institute for Cell Therapy and Immunology, Department Molecular Drug Biochemistry and Therapy, Weinbergweg 22, 06120, Halle (Saale), Germany.
Anke PiechottaFraunhofer Institute for Cell Therapy and Immunology, Department Molecular Drug Biochemistry and Therapy, Weinbergweg 22, 06120, Halle (Saale), Germany.
Koki MakiokaAnn Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, 60 Fenwood Road, Boston, MA, 02115, USA.
Cynthia A LemereAnn Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, 60 Fenwood Road, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0002-2983-7870
Stephan SchillingVivoryon Therapeutics AG, Weinbergweg 22, 06120, Halle (Saale), Germany.
Jens-Ulrich RahfeldVivoryon Therapeutics AG, Weinbergweg 22, 06120, Halle (Saale), Germany. jens-ulrich.rahfeld@izi.fraunhofer.de.
Inge LuesVivoryon Therapeutics AG, Weinbergweg 22, 06120, Halle (Saale), Germany.
Fraunhofer Institute for Cell Therapy and Immunology · DEBrigham and Women's Hospital · USscPharmaceuticals (United States) · US

Funding

Understanding and Mitigating Vascular Side-Effects Associated with Anti-Amyloid ImmunotherapyR01NS136122 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI CYNTHIA A LEMERE · 2024 to 2026
$2.5M
AD Immunotherapy with a Novel CDC-Mutant Anti-Pyroglutamate-3 Abeta Antibody to Avoid Vascular Side EffectsRF1AG058657 · NIA · BRIGHAM AND WOMEN'S HOSPITAL · PI LEMERE, CYNTHIA A · 2018 to 2018
$2.2M
Pyroglutamate Amyloid-beta as an Immunotherapeutic Target for Alzheimer's DiseaseR01AG040092 · NIA · BRIGHAM AND WOMEN'S HOSPITAL · PI LEMERE, CYNTHIA A · 2012 to 2015
$1.5M
NIA NIH HHS R01 AG040092NIA NIH HHS RF1 AG058657NINDS NIH HHS R01 NS136122
6 · The paper itself

Abstract

In clinical trials with early Alzheimer's patients, administration of anti-amyloid antibodies reduced amyloid deposits, suggesting that immunotherapies may be promising disease-modifying interventions against Alzheimer's disease (AD). Specific forms of amyloid beta (Aβ) peptides, for example post-translationally modified Aβ peptides with a pyroglutamate at the N-terminus (pGlu3, pE3), are attractive antibody targets, due to pGlu3-Aβ's neo-epitope character and its propensity to form neurotoxic oligomeric aggregates. We have generated a novel anti-pGlu3-Aβ antibody, PBD-C06, which is based on a murine precursor antibody that binds with high specificity to pGlu3-Aβ monomers, oligomers and fibrils, including mixed aggregates of unmodified Aβ and pGlu3-Aβ peptides. PBD-C06 was generated by first grafting the murine antigen binding sequences onto suitable human variable light and heavy chains. Subsequently, the humanized antibody was de-immunized and site-specific mutations were introduced to restore original target binding, to eliminate complement activation and to improve protein stability. PBD-C06 binds with the same specificity and avidity as its murine precursor antibody and elimination of C1q binding did not compromise Fcγ-receptor binding or in vitro phagocytosis. Thus, PBD-C06 was specifically designed to target neurotoxic aggregates and to avoid complement-mediated inflammatory responses, in order to lower the risk for vasogenic edemas in the clinic.

Indexed as

Complement ActivationImmunotherapyAllelesAlzheimer DiseaseAmyloid beta-PeptidesAnimalsAntibodies, Monoclonal, HumanizedComplementarity Determining RegionsComplement C1qEdemaEndocytosisEpitopesHumansInflammationMiceMutationAmyloid beta-PeptidesAntibodies, Monoclonal, HumanizedComplementarity Determining RegionsComplement C1qEpitopesPyrrolidonecarboxylic Acid

Identifiers

PMID32094456
PMCPMC7040040
OpenAlexW3007747520

What OpenQuestion holds

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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.