Evidence map›Paper›PMID 24634285›Full record

Trial reportMuscle & nerve2014

Tirasemtiv amplifies skeletal muscle response to nerve activation in humans.

Richard Hansen, Khalil G Saikali, Willis Chou, Alan J Russell, Michael M Chen, Vipin Vijayakumar, Randall R Stoltz, Stephane Baudry, Roger M Enoka, David J Morgans and 2 more

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Muscle & nerve, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–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

15 citing papers in PubMed.

  1. A Phase 2, Double-Blind, Randomized, Dose-Ranging Trial OfAmyotrophic lateral sclerosis & frontotemporal degeneration · 2021
    Trial
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  13. Discovery ofACS medicinal chemistry letters · 2018
    Article
  14. Article
  15. Sarcomere Dysfunction in Nemaline Myopathy.Journal of neuromuscular diseases
    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

12 authors.

Richard HansenResearch and Early Development, Cytokinetics, Inc., 280 East Grand Avenue, South San Francisco, California, 94080-4808, USA.
Khalil G Saikali
Willis Chou
Alan J Russell
Michael M Chen
Vipin Vijayakumar
Randall R Stoltz
Stephane Baudry
Roger M Enoka
David J Morgans
Andrew A Wolff
Fady I Malik

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn this study we tested the hypothesis that tirasemtiv, a selective fast skeletal muscle troponin activator that sensitizes the sarcomere to calcium, could amplify the response of muscle to neuromuscular input in humans.

methodsHealthy men received tirasemtiv and placebo in a randomized, double-blind, 4-period, crossover design. The deep fibular nerve was stimulated transcutaneously to activate the tibialis anterior muscle and produce dorsiflexion of the foot. The force-frequency relationship of tibialis anterior dorsiflexion was assessed after dosing.

resultsTirasemtiv increased force produced by the tibialis anterior in a dose-, concentration-, and frequency-dependent manner with the largest increases [up to 24.5% (SE 3.1), P < 0.0001] produced at subtetanic nerve stimulation frequencies (10 Hz).

conclusionsThe data confirm that tirasemtiv amplifies the response of skeletal muscle to nerve input in humans. This outcome provides support for further studies of tirasemtiv as a potential therapy in conditions marked by diminished neuromuscular input.

Indexed as

Administration, OralAdolescentAdultCross-Over StudiesDose-Response Relationship, DrugDouble-Blind MethodElectric StimulationHumansImidazolesMaleMiddle AgedMuscle, SkeletalNeuromuscular AgentsPyrazinesTroponin TYoung AdultCK-2017357ImidazolesNeuromuscular AgentsPyrazinesTNNT3 protein, humanTroponin Tfast skeletal muscle troponin activatorforce-frequency relationshipPhase 1skeletal muscletirasemtiv

Identifiers

PMID24634285
PMCPMC4260123

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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.