Last update 08 May 2026

Sevasemten

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
type II fast skeletal myosin inhibitor (Edgewise Therapeutics), EDG 5506, EDG-5506
+ [1]
Target
Action
inhibitors
Mechanism
MYH4 inhibitors(myosin heavy chain 4 inhibitors)
Inactive Indication-
Originator Organization
Active Organization
Inactive Organization-
License Organization-
Drug Highest PhasePhase 3
First Approval Date-
RegulationOrphan Drug (United States), Rare Pediatric Disease (United States), Orphan Drug (European Union), Fast Track (United States)
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Structure/Sequence

Molecular FormulaC16H11F4N5O2
InChIKeyXFPJKQRXBAFXNK-UHFFFAOYSA-N
CAS Registry2417395-15-2

R&D Status

10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Becker Muscular DystrophyPhase 3--
Glycogen Storage Disease Type VPhase 2
Denmark
06 Dec 2022
Muscular Dystrophies, Limb-GirdlePhase 2
Denmark
06 Dec 2022
Muscular Dystrophy, DuchennePhase 2
United States
24 Oct 2022
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
-
(ARCH trial participants)
ekrdxdguzx(aeeyoqhrvq) = Sustained stabilization over 3.5 years: North Star Ambulatory Assessment (NSAA) functional scores of ARCH and CANYON trial participants treated with sevasemten remained stable after 3.5 years and 2 years, respectively. The CANYON participants on placebo who rolled into the MESA study also had NSAA functional scores that trended upward during the first year after switching to sevasemten. Once Becker muscular dystrophy functional decline begins, its course typically continues along a downward trajectory. Multiple natural history studies report NSAA scores declining by an average of 1.0 to 1.7 points annually for Becker patients, translating to an expected average functional drop of 3.0 to 5.1 points across 3 years. In the MESA extension study, sevasemten-treated patients showed NSAA outcomes that diverged markedly from predicted natural history declines: the CANYON cohort saw a slight NSAA improvement of +0.1 over 2 years versus a predicted natural decline of −2.9 points, while the ARCH cohort maintained a +0.1 NSAA benefit over 3.5 years compared with an expected historical decline of −5.3 points. nshaoxojsk (okdiuemrkq )
Positive
10 Mar 2026
(CANYON trial participants)
Phase 1
97
(Becker muscular dystrophy)
usxfwtwvjv(gqmdqpwbab) = qyhbihinih rofpelfimv (diyxvpoygf, -0.4 to 0.8)
Positive
08 Mar 2026
Phase 1
12
qggkviwqfk = gewxytgpml wppbybbecv (skumidsyee, jcktuumiyw - ewaolpufyn)
-
24 Jun 2025
Phase 1
12
jtpqsfilmv(kydxovnnmz): Difference = 2.3 (95.0% CI, 1.0 - 3.6), P-Value = < 0.001
Positive
16 Mar 2025
(Natural History Controls)
Phase 2
40
gulkowibbt(dtjbjksvqf): P-Value = 0.02
Positive
16 Mar 2025
Placebo
Phase 2
-
pbssumhtzc(jkruszhkvq): Difference (%) = -28, P-Value = 0.02
Met
Positive
16 Dec 2024
Placebo
Phase 1
12
abypcbudnb(zrmzictmoi) = qveevhwhym urymedkbfr (ewwvktrtjz )
Positive
19 Mar 2023
Phase 1
12
tslpcocdib(nqiuydrqiz) = 25% Dizziness; 25% Somnolence; 25% Headache; 17% Fall; 8% Gastroenteritis virus ssbtoghanm (swdtaogfac )
Positive
12 Sep 2022
Phase 1
12
tattpngorn(japtjifsur) = aikmjjdcev ifvbphpfwa (lixbovcrqe )
Positive
20 Jun 2022
Phase 1
7
aqxoedafbx(kfvnecospw) = dyqehelecc lswuejndlr (pywrevjrnm )
Positive
05 Jan 2022
Placebo
-
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Regulation

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