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Details

Stereochemistry ABSOLUTE
Molecular Formula C15H19N3O2
Molecular Weight 273.3303
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of MAVACAMTEN

SMILES

CC(C)N1C(=O)NC(N[C@@H](C)C2=CC=CC=C2)=CC1=O

InChI

InChIKey=RLCLASQCAPXVLM-NSHDSACASA-N
InChI=1S/C15H19N3O2/c1-10(2)18-14(19)9-13(17-15(18)20)16-11(3)12-7-5-4-6-8-12/h4-11,16H,1-3H3,(H,17,20)/t11-/m0/s1

HIDE SMILES / InChI
Mavacamten (Camzyos™; MYK-461) is an oral small-molecule cardiac myosin inhibitor developed by MyoKardia, Inc., a wholly owned subsidiary of Bristol Myers Squibb, for the treatment of hypertrophic cardiomyopathy (HCM) and diseases of diastolic dysfunction. Mavacamten is an allosteric and reversible inhibitor selective for cardiac myosin. Mavacamten modulates the number of myosin heads that can enter “on actin” (power-generating) states, thus reducing the probability of force-producing (systolic) and residual (diastolic) cross-bridge formation. Excess myosin actin cross-bridge formation and dysregulation of the super-relaxed state are mechanistic hallmarks of HCM. Mavacamten shifts the overall myosin population towards an energy-sparing, recruitable, super-relaxed state. In HCM patients, myosin inhibition with mavacamten reduces dynamic LVOT obstruction and improves cardiac filling pressures. In April 2022, mavacamten was approved for use in the USA in the treatment of adults with symptomatic New York Heart Association (NYHA) class II-III obstructive HCM to improve functional capacity and symptoms.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
0.3 µM [IC50]
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Camzyos

Approved Use

Indicated for the treatment of adults with symptomatic New York Heart Association (NYHA) class II-III obstructive hypertrophic cardiomyopathy to improve functional capacity and symptoms.

Launch Date

2022
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
509 ng/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
397 ng/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
596 ng/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
534 ng/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
468 ng/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
426 ng/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
153 ng/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: HIGH-FAT
341.1 ng/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
333 ng/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
490 ng/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
391 ng/mL
15 mg 1 times / day multiple, oral
dose: 15 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
596 ng/mL
15 mg 1 times / day multiple, oral
dose: 15 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
141 ng/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
289 ng/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
504 ng/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
516 ng/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
333.2 ng/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
489.9 ng/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
20.9 ng/mL
1 mg single, oral
dose: 1 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
62 ng/mL
2 mg single, oral
dose: 2 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
101 ng/mL
6 mg single, oral
dose: 6 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
204 ng/mL
12 mg single, oral
dose: 12 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
492 ng/mL
24 mg single, oral
dose: 24 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
894 ng/mL
48 mg single, oral
dose: 48 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
43520 ng × h/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
14130 ng × h/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
71000 ng × h/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
18200 ng × h/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
32800 ng × h/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
19700 ng × h/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
9395 ng × h/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: HIGH-FAT
10690 ng × h/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: FASTED
12530 ng × h/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
42800 ng × h/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
2768 ng × h/mL
15 mg 1 times / day multiple, oral
dose: 15 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
8313 ng × h/mL
15 mg 1 times / day multiple, oral
dose: 15 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
6277 ng × h/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
15410 ng × h/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
17370 ng × h/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
19280 ng × h/mL
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
12530 ng × h/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
42800 ng × h/mL
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
296 ng × h/mL
1 mg single, oral
dose: 1 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
1368 ng × h/mL
2 mg single, oral
dose: 2 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
3245 ng × h/mL
6 mg single, oral
dose: 6 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
5333 ng × h/mL
12 mg single, oral
dose: 12 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
14555 ng × h/mL
24 mg single, oral
dose: 24 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
32990 ng × h/mL
48 mg single, oral
dose: 48 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
193 h
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
553 h
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
216 h
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
216 h
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
141 h
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
144 h
25 mg single, oral
dose: 25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
192.7 h
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
552.8 h
15 mg single, oral
dose: 15 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
MAVACAMTEN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
Funbound

Funbound

ValueDoseCo-administeredAnalytePopulation
6.9%
MAVACAMTEN plasma
Homo sapiens
population: UNKNOWN
age: UNKNOWN
sex: UNKNOWN
food status: UNKNOWN
Doses

Doses

DosePopulationAdverse events​
20 mg 1 times / day multiple, oral
Highest studied dose
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M F
Food Status: UNKNOWN
Sources:
5 mg 1 times / day multiple, oral
Studied dose
Dose: 5 mg, 1 times / day
Route: oral
Route: multiple
Dose: 5 mg, 1 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Disc. AE: Atrial fibrillation, Adverse event...
AEs leading to
discontinuation/dose reduction:
Atrial fibrillation (0.8%)
Adverse event (2.4%)
Syncope (0.8%)
Sources:
AEs

AEs

AESignificanceDosePopulation
Atrial fibrillation 0.8%
Disc. AE
5 mg 1 times / day multiple, oral
Studied dose
Dose: 5 mg, 1 times / day
Route: oral
Route: multiple
Dose: 5 mg, 1 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Syncope 0.8%
Disc. AE
5 mg 1 times / day multiple, oral
Studied dose
Dose: 5 mg, 1 times / day
Route: oral
Route: multiple
Dose: 5 mg, 1 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Adverse event 2.4%
Disc. AE
5 mg 1 times / day multiple, oral
Studied dose
Dose: 5 mg, 1 times / day
Route: oral
Route: multiple
Dose: 5 mg, 1 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
OverviewDrug as perpetrator​

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
weak [IC50 22.6 uM]
yes
yes
yes
yes
yes
yes
yes
yes
yes (co-administration study)
Drug as victim

Drug as victim

TargetModalityActivityMetaboliteClinical evidence
major
minor
yes (co-administration study)
Comment: Itraconazole increased Cmax and AUC by 1.17-fold and 1.29-fold
Page: 27 | 33
minor
yes (co-administration study)
no
no
no
no
no
no
no
no
no
Tox targets

Tox targets

TargetModalityActivityMetaboliteClinical evidence
PubMed

PubMed

TitleDatePubMed
Patents

Patents

Sample Use Guides

The recommended starting dose is 5 mg once daily without regard to food; allowable subsequent doses with titration are 2.5, 5, 10, or 15 mg once daily.
Route of Administration: Oral
In Vitro Use Guide
Treatment of mouse cardiac myofibrils with MYK-461 reduced ATPase activity in a dose-dependent manner [median inhibitory concentration (IC50) of 0.3 uM]. Maximal doses of MYK-461 (>10 uM) reduced the maximal ATPase rate by ~90%.
Name Type Language
MAVACAMTEN
INN  
INN   USAN  
Official Name English
mavacamten [INN]
Preferred Name English
Mavacamten [WHO-DD]
Common Name English
CAMZYOS
Brand Name English
SAR-439152
Code English
2,4(1H,3H)-Pyrimidinedione, 3-(1-methylethyl)-6-[[(1S)-1-phenylethyl]amino]-
Systematic Name English
3-(1-Methylethyl)-6-[[(1S)-1-phenylethyl]amino]-2,4(1H,3H)-pyrimidinedione
Systematic Name English
MAVACAMTEN [USAN]
Common Name English
MYK-461
Code English
6-{[(1S)-1-phenylethyl]amino}-3-(propan-2-yl)pyrimidine-2,4(1H,3H)-dione
Systematic Name English
Classification Tree Code System Code
FDA ORPHAN DRUG 515015
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
Code System Code Type Description
SMS_ID
300000002681
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY
PUBCHEM
117761397
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY
DRUG BANK
DB14921
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY
DAILYMED
QX45B99R3J
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY
CAS
1642288-47-8
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY
FDA UNII
QX45B99R3J
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY
RXCUI
2600867
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY
NCI_THESAURUS
C174901
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY
USAN
JK-199
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY
INN
10492
Created by admin on Mon Mar 31 22:27:38 GMT 2025 , Edited by admin on Mon Mar 31 22:27:38 GMT 2025
PRIMARY