Evidence map›Paper›PMID 39196032›Full record

ArticleNature cardiovascular research2024

Aficamten is a small-molecule cardiac myosin inhibitor designed to treat hypertrophic cardiomyopathy.

James J Hartman, Darren T Hwee, Julien Robert-Paganin, Chihyuan Chuang, Eva R Chin, Samantha Edell, Ken H Lee, Roshni Madhvani, Preeti Paliwal, Julien Pernier and 10 more

Abstract read
In one paragraph

Article in Nature cardiovascular research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

34 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Contractile effects of Aficamten in the human atrium.Naunyn-Schmiedeberg's archives of pharmacology · 2026
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Clinical Evaluation of Drug-Drug Interactions With Aficamten.Clinical and translational science · 2026
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Understanding hypertrophic cardiomyopathy and its regulation by myosin drugs.Protein science : a publication of the Protein Society · 2025
    Article
  19. Article
  20. Review
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

20 authors.

James J HartmanResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA. jhartman@cytokinetics.com.ORCID http://orcid.org/0000-0001-8301-0199
Darren T HweeResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Julien Robert-PaganinStructural Motility, Institut Curie, Université Paris Sciences et Lettres, Sorbonne Université, CNRS UMR144, Paris, France.ORCID http://orcid.org/0000-0001-6102-2025
Chihyuan ChuangResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Eva R ChinResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Samantha EdellResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Ken H LeeResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Roshni MadhvaniResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Preeti PaliwalResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Julien PernierTumor Cell Dynamics Unit, Inserm U1279 Gustave Roussy Institute, Université Paris-Saclay, Villejuif, France.
Saswata Sankar SarkarResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Julia SchaletzkyResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Kristine SchauerTumor Cell Dynamics Unit, Inserm U1279 Gustave Roussy Institute, Université Paris-Saclay, Villejuif, France.
Khanha D TaheriResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Jingying WangResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Eddie WehriResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Yangsong WuResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.
Anne HoudusseStructural Motility, Institut Curie, Université Paris Sciences et Lettres, Sorbonne Université, CNRS UMR144, Paris, France.ORCID http://orcid.org/0000-0002-8566-0336
Bradley P MorganResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.ORCID http://orcid.org/0000-0002-4727-1735
Fady I MalikResearch and Non-Clinical Development, Cytokinetics, South San Francisco, CA, USA.ORCID http://orcid.org/0000-0002-5597-5759

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypertrophic cardiomyopathy (HCM) is an inherited disease of the sarcomere resulting in excessive cardiac contractility. The first-in-class cardiac myosin inhibitor, mavacamten, improves symptoms in obstructive HCM. Here we present aficamten, a selective small-molecule inhibitor of cardiac myosin that diminishes ATPase activity by strongly slowing phosphate release, stabilizing a weak actin-binding state. Binding to an allosteric site on the myosin catalytic domain distinct from mavacamten, aficamten prevents the conformational changes necessary to enter the strongly actin-bound force-generating state. In doing so, aficamten reduces the number of functional myosin heads driving sarcomere shortening. The crystal structure of aficamten bound to cardiac myosin in the pre-powerstroke state provides a basis for understanding its selectivity over smooth and fast skeletal muscle. Furthermore, in cardiac myocytes and in mice bearing the hypertrophic R403Q cardiac myosin mutation, aficamten reduces cardiac contractility. Our findings suggest aficamten holds promise as a therapy for HCM.

Indexed as

Cardiac MyosinsCardiomyopathy, HypertrophicSmall Molecule LibrariesActinsAmino Acid SequenceAnimalsBinding SitesDogsMaleModels, MolecularNucleotidesPhosphatesProtein BindingProtein Structure, TertiaryRatsSequence AlignmentActinsCardiac MyosinsNucleotidesPhosphatesSmall Molecule Libraries

Identifiers

PMID39196032
PMCPMC11358156

What OpenQuestion holds

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LicenceCC BY
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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.