Evidence map›Paper›PMID 37117834›Full record

Trial reportNature aging2021

ADAMANT: a placebo-controlled randomized phase 2 study of AADvac1, an active immunotherapy against pathological tau in Alzheimer's disease.

Petr Novak, Branislav Kovacech, Stanislav Katina, Reinhold Schmidt, Philip Scheltens, Eva Kontsekova, Stefan Ropele, Lubica Fialova, Milica Kramberger, Natalia Paulenka-Ivanovova and 27 more

Open access · greenAbstract readRandomized Controlled TrialMulticenter StudyClinical Trial, Phase II
PubMed Publisher
In one paragraph

Trial report in Nature aging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed
14.5field-weighted citation impact, top 1% 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

97 citing papers in PubMed, 170 citations in OpenAlex.

  1. Trial
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  8. Article
  9. Review
  10. Neuroinflammation and Tauopathies.Molecular biology reports · 2026
    Review
  11. Review
  12. Article
  13. Programmed cell death: a promising management for Alzheimer's disease.Apoptosis : an international journal on programmed cell death · 2026
    Review
  14. Promoter mutagenesis and a massively parallel reporter screen of thebioRxiv : the preprint server for biology · 2026
    Article
  15. Review
  16. Review
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  19. Imaging microtubule dynamics: A new frontier in biomarker development for neurodegenerative diseases.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  20. Article

37 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

37 authors at 13 institutions in 9 countries.

Petr NovakAXON Neuroscience CRM Services SE, Bratislava, Slovakia. petr.novak@axon-neuroscience.eu.ORCID 0000-0003-2472-0865
Branislav KovacechAXON Neuroscience R&D Services SE, Bratislava, Slovakia.ORCID 0000-0001-9383-2911
Stanislav KatinaAXON Neuroscience CRM Services SE, Bratislava, Slovakia.
Reinhold SchmidtClinical Division of Neurogeriatrics, Department of Neurology, Medical University Graz, Graz, Austria.
Philip ScheltensAlzheimer Center, Amsterdam University Medical Centers, Amsterdam, the Netherlands.ORCID 0000-0002-1046-6408
Eva KontsekovaAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Stefan RopeleClinical Division of General Neurology, Department of Neurology, Medical University Graz, Graz, Austria.ORCID 0000-0002-5559-768X
Lubica FialovaAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Milica KrambergerDepartment of Neurology, University Medical Centre Ljubljana, Ljubljana, Slovenia.
Natalia Paulenka-IvanovovaAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Miroslav SmisekAXON Neuroscience CRM Services SE, Bratislava, Slovakia.
Jozef HanesAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Eva StevensAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Andrej KovacAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Stanislav Sutovsky1st Department of Neurology, Faculty of Medicine, Comenius University and University Hospital, Bratislava, Slovakia.
Vojtech ParrakAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Peter KosonAXON Neuroscience CRM Services SE, Bratislava, Slovakia.
Michal PrcinaAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Jaroslav GalbaAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Martin CenteAXON Neuroscience R&D Services SE, Bratislava, Slovakia.ORCID 0000-0003-1420-1017
Tomas HromadkaInstitute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia.
Peter FilipcikAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Juraj PiestanskyAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
Maria SamcovaAXON Neuroscience CRM Services SE, Bratislava, Slovakia.
Carmen Prenn-GolograncAXON Neuroscience CRM Services SE, Bratislava, Slovakia.
Roman SivakAXON Neuroscience CRM Services SE, Bratislava, Slovakia.
Lutz FroelichDepartment of Geriatric Psychiatry, Zentralinstitut für Seelische Gesundheit, Medical Faculty Mannheim University of Heidelberg, Heidelberg, Germany.
Michal FresserAXON Neuroscience SE, Larnaca, Cyprus.
Martin RakusaDepartment of Neurological Diseases, University Medical Centre Maribor, Maribor, Slovenia.ORCID 0000-0003-4433-3985
John HarrisonAlzheimer Center, Amsterdam University Medical Centers, Amsterdam, the Netherlands.ORCID 0000-0002-0225-4923
Jakub HortMemory Clinic, Department of Neurology, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Prague, Czech Republic.
Markus OttoDepartment of Neurology, Ulm University Hospital, Ulm, Germany.ORCID 0000-0003-4273-4267
Duygu TosunDepartment of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA.ORCID 0000-0001-8644-7724
Matej OndrusAXON Neuroscience CRM Services SE, Bratislava, Slovakia.
Bengt WinbladDivision of Neurogeriatrics, Center for Alzheimer Research, Karolinska Institutet, Solna, Sweden.ORCID 0000-0002-0011-1179
Michal NovakAXON Neuroscience SE, Larnaca, Cyprus.
Norbert ZilkaAXON Neuroscience R&D Services SE, Bratislava, Slovakia.
AXON Neuroscience (Slovakia) · SKAmsterdam University Medical Centers · NLAXON Neuroscience (Cyprus) · CYMedical University of Graz · ATCharles University · CZHeidelberg University · DEKarolinska University Hospital · SELjubljana University Medical Centre · SISlovak Academy of Sciences · SKUniversity Clinical Centre Maribor · SIUniversity Hospital Bratislava · SKUniversity Hospital Ulm · DEUniversity of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Alzheimer's disease (AD) pathology is partly characterized by accumulation of aberrant forms of tau protein. Here we report the results of ADAMANT, a 24-month double-blinded, parallel-arm, randomized phase 2 multicenter placebo-controlled trial of AADvac1, an active peptide vaccine designed to target pathological tau in AD (EudraCT 2015-000630-30). Eleven doses of AADvac1 were administered to patients with mild AD dementia at 40 μg per dose over the course of the trial. The primary objective was to evaluate the safety and tolerability of long-term AADvac1 treatment. The secondary objectives were to evaluate immunogenicity and efficacy of AADvac1 treatment in slowing cognitive and functional decline. A total of 196 patients were randomized 3:2 between AADvac1 and placebo. AADvac1 was safe and well tolerated (AADvac1 n = 117, placebo n = 79; serious adverse events observed in 17.1% of AADvac1-treated individuals and 24.1% of placebo-treated individuals; adverse events observed in 84.6% of AADvac1-treated individuals and 81.0% of placebo-treated individuals). The vaccine induced high levels of IgG antibodies. No significant effects were found in cognitive and functional tests on the whole study sample (Clinical Dementia Rating-Sum of the Boxes scale adjusted mean point difference -0.360 (95% CI -1.306, 0.589)), custom cognitive battery adjusted mean z-score difference of 0.0008 (95% CI -0.169, 0.172). We also present results from exploratory and post hoc analyses looking at relevant biomarkers and clinical outcomes in specific subgroups. Our results show that AADvac1 is safe and immunogenic, but larger stratified studies are needed to better evaluate its potential clinical efficacy and impact on disease biomarkers.

Indexed as

Alzheimer DiseaseAlzheimer VaccinesBiomarkersHumansImmunotherapy, Activetau ProteinsAADvac1Alzheimer VaccinesBiomarkerstau Proteins

Identifiers

PMID37117834
OpenAlexW3167556772

What OpenQuestion holds

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Registered trials

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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.