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Details

Stereochemistry ABSOLUTE
Molecular Formula C15H15FIN3O3
Molecular Weight 431.2008
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PIMASERTIB

SMILES

OC[C@@H](O)CNC(=O)C1=C(NC2=C(F)C=C(I)C=C2)C=NC=C1

InChI

InChIKey=VIUAUNHCRHHYNE-JTQLQIEISA-N
InChI=1S/C15H15FIN3O3/c16-12-5-9(17)1-2-13(12)20-14-7-18-4-3-11(14)15(23)19-6-10(22)8-21/h1-5,7,10,20-22H,6,8H2,(H,19,23)/t10-/m0/s1

HIDE SMILES / InChI

Molecular Formula C15H15FIN3O3
Molecular Weight 431.2008
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 1 / 1
E/Z Centers 0
Optical Activity UNSPECIFIED

Description
Curator's Comment: description was created based on several sources, including http://ar2014.merckgroup.com/management-report/fundamental-information-about-the-group/research-and-development-at-merck

Pimasertib) (N-[(2S)-2,3-dihydroxypropyl]-3-[(2-fluoro-4-iodophenyl)amino]isonicotinamide hydrochloride; AS703026), a highly selective, potent, ATP non-competitive allosteric inhibitor of MEK1/2. It binds to MEK1/2 in an allosteric site that is distinct from, yet in close proximity to, the ATP binding site. Binding to this allosteric site prevents the activation of MEK1/2. Pimasertib continues to be investigated in patients with NRAS mutant malignant melanoma in a Phase II trial. This drug was discontinued in a combination with SAR245409 for Phase II study in low-grade serous ovarian cancer. This decision was based on the results of a futility analysis, conducted by the IDMC, which indicated that the trial was no longer expected to achieve its objective of showing a meaningful difference between the efficacies of the combination compared with pimasertib alone. The further development of pimasertib in pancreatic cancer was also discontinued, as a Phase II study in this indication did not reach its primary endpoint of prolongation of progression-free survival

Approval Year

Targets

Targets

Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
283.8 ng/mL
60 mg single, oral
dose: 60 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
261.83 ng/mL
60 mg 2 times / day steady-state, oral
dose: 60 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
12.7 pg × eq/mL
2 μg single, intravenous
dose: 2 μg
route of administration: Intravenous
experiment type: SINGLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
265 ng/mL
60 mg 2 times / day multiple, oral
dose: 60 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
774 ng × eq/mL
60 mg 2 times / day multiple, oral
dose: 60 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
1160.8 ng × h/mL
60 mg single, oral
dose: 60 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
952.1 ng × h/mL
60 mg 2 times / day steady-state, oral
dose: 60 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
0.036 ng × eq × h/mL
2 μg single, intravenous
dose: 2 μg
route of administration: Intravenous
experiment type: SINGLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
937 ng × h/mL
60 mg 2 times / day multiple, oral
dose: 60 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
5318 ng × eq × h/mL
60 mg 2 times / day multiple, oral
dose: 60 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
3.019 h
60 mg single, oral
dose: 60 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
3.53 h
60 mg 2 times / day steady-state, oral
dose: 60 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
3.5 h
2 μg single, intravenous
dose: 2 μg
route of administration: Intravenous
experiment type: SINGLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
6.3 h
60 mg 2 times / day multiple, oral
dose: 60 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
17 h
60 mg 2 times / day multiple, oral
dose: 60 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
Funbound

Funbound

ValueDoseCo-administeredAnalytePopulation
6.7%
PIMASERTIB plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
Doses

Doses

DosePopulationAdverse events​
45 mg 2 times / day multiple, oral
MTD
Dose: 45 mg, 2 times / day
Route: oral
Route: multiple
Dose: 45 mg, 2 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
45 mg 2 times / day multiple, oral
Studied dose
Dose: 45 mg, 2 times / day
Route: oral
Route: multiple
Dose: 45 mg, 2 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: unknown
Food Status: UNKNOWN
Sources:
DLT: Diarrhea...
Dose limiting toxicities:
Diarrhea (grade 2, 100%)
Sources:
60 mg 2 times / day multiple, oral
Studied dose
Dose: 60 mg, 2 times / day
Route: oral
Route: multiple
Dose: 60 mg, 2 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
DLT: Hypokalemia, Stomatitis...
Dose limiting toxicities:
Hypokalemia (grade 3, 33.3%)
Stomatitis (33.3%)
Muscle weakness (33.3%)
Sources:
30 mg 2 times / day multiple, oral
Studied dose
Dose: 30 mg, 2 times / day
Route: oral
Route: multiple
Dose: 30 mg, 2 times / day
Sources:
unhealthy
Health Status: unhealthy
Sex: M+F
Food Status: UNKNOWN
Sources:
DLT: Retinal detachment...
Dose limiting toxicities:
Retinal detachment (grade 1, 33.3%)
Sources:
AEs

AEs

AESignificanceDosePopulation
Diarrhea grade 2, 100%
DLT, Disc. AE
45 mg 2 times / day multiple, oral
Studied dose
Dose: 45 mg, 2 times / day
Route: oral
Route: multiple
Dose: 45 mg, 2 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: unknown
Food Status: UNKNOWN
Sources:
Muscle weakness 33.3%
DLT, Disc. AE
60 mg 2 times / day multiple, oral
Studied dose
Dose: 60 mg, 2 times / day
Route: oral
Route: multiple
Dose: 60 mg, 2 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Stomatitis 33.3%
DLT, Disc. AE
60 mg 2 times / day multiple, oral
Studied dose
Dose: 60 mg, 2 times / day
Route: oral
Route: multiple
Dose: 60 mg, 2 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Hypokalemia grade 3, 33.3%
DLT, Disc. AE
60 mg 2 times / day multiple, oral
Studied dose
Dose: 60 mg, 2 times / day
Route: oral
Route: multiple
Dose: 60 mg, 2 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Retinal detachment grade 1, 33.3%
DLT, Disc. AE
30 mg 2 times / day multiple, oral
Studied dose
Dose: 30 mg, 2 times / day
Route: oral
Route: multiple
Dose: 30 mg, 2 times / day
Sources:
unhealthy
Health Status: unhealthy
Sex: M+F
Food Status: UNKNOWN
Sources:
PubMed

PubMed

TitleDatePubMed
MEK inhibitors as a chemotherapeutic intervention in multiple myeloma.
2013-03-22
MEK1/2 inhibitors AS703026 and AZD6244 may be potential therapies for KRAS mutated colorectal cancer that is resistant to EGFR monoclonal antibody therapy.
2011-01-15
Blockade of the MEK/ERK signalling cascade by AS703026, a novel selective MEK1/2 inhibitor, induces pleiotropic anti-myeloma activity in vitro and in vivo.
2010-05
Patents

Sample Use Guides

Pimasertib will be administered as oral capsule at a dose of 60 mg twice daily continuously. Treatment will consist of repeated 21-day cycles which will be continued until progression of the disease, unacceptable toxicity, withdrawal of informed consent, or death, whichever comes first.
Route of Administration: Oral
AS703026 (PIMASERTIB) (10 μM) effectively inhibits the ERK pathway, proliferation, and transformation in human DLD-1 colorectal cancer cells what carry a mutant allele of K-Ras (D-MUT).
Substance Class Chemical
Created
by admin
on Mon Mar 31 20:05:37 GMT 2025
Edited
by admin
on Mon Mar 31 20:05:37 GMT 2025
Record UNII
6ON9RK82AL
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
AS 703026
Preferred Name English
PIMASERTIB
INN   USAN   WHO-DD  
INN   USAN  
Official Name English
pimasertib [INN]
Common Name English
MSC-1936369A
Code English
MSC-1936369
Common Name English
PIMASERTIB [USAN]
Common Name English
EMD-1036239
Code English
N-[(2S)-2,3-Dihydroxypropyl]-3-[(2-fluoro-4-iodophenyl)amino]pyridine-4-carboxamide
Systematic Name English
Pimasertib [WHO-DD]
Common Name English
4-PYRIDINECARBOXAMIDE, N-((2S)-2,3-DIHYDROXYPROPYL)-3-((2-FLUORO-4-IODOPHENYL)AMINO)-
Systematic Name English
EMD 1036239
Code English
AS-703026
Code English
AS703026
Code English
MSC1936369A
Code English
G-02443714
Code English
Classification Tree Code System Code
NCI_THESAURUS C69145
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
NCI_THESAURUS C129825
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
Code System Code Type Description
CAS
1236699-92-5
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
PRIMARY
PUBCHEM
44187362
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
PRIMARY
DRUG BANK
DB14904
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
PRIMARY
INN
9498
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
PRIMARY
FDA UNII
6ON9RK82AL
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
PRIMARY
SMS_ID
100000176282
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
PRIMARY
NCI_THESAURUS
C84864
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
PRIMARY
ChEMBL
CHEMBL2107832
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
PRIMARY
USAN
ZZ-116
Created by admin on Mon Mar 31 20:05:37 GMT 2025 , Edited by admin on Mon Mar 31 20:05:37 GMT 2025
PRIMARY
Related Record Type Details
SALT/SOLVATE -> PARENT
EXCRETED UNCHANGED
AMOUNT EXCRETED
FECAL
EXCRETED UNCHANGED
AMOUNT EXCRETED
URINE
Related Record Type Details
METABOLITE -> PARENT
AUC STUDY
PLASMA
PARENT -> METABOLITE
MINOR
URINE
METABOLITE -> PARENT
MAJOR
FECAL; PLASMA; URINE
PARENT -> METABOLITE
MINOR
FECAL; PLASMA; URINE
METABOLITE -> PARENT
LESS THAN 1%
MAJOR
URINE
METABOLITE -> PARENT
METABOLITE -> PARENT
M554 was not formed in liver microsomes of different species (human, mouse, rat, dog, monkey) (
MAJOR
PLASMA; URINE
PARENT -> METABOLITE
MINOR
FECAL
Name Property Type Amount Referenced Substance Defining Parameters References
Volume of Distribution PHARMACOKINETIC INTRAVENOUS ADMINISTRATION