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Details

Stereochemistry ABSOLUTE
Molecular Formula C58H66N10O9
Molecular Weight 1047.2062
Optical Activity UNSPECIFIED
Defined Stereocenters 7 / 7
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PASIREOTIDE

SMILES

[H][C@@]12C[C@H](CN1C(=O)[C@H](CC3=CC=CC=C3)NC(=O)[C@H](CC4=CC=C(OCC5=CC=CC=C5)C=C4)NC(=O)[C@H](CCCCN)NC(=O)[C@@H](CC6=CNC7=C6C=CC=C7)NC(=O)[C@@H](NC2=O)C8=CC=CC=C8)OC(=O)NCCN

InChI

InChIKey=VMZMNAABQBOLAK-DBILLSOUSA-N
InChI=1S/C58H66N10O9/c59-27-13-12-22-46-52(69)64-47(30-38-23-25-42(26-24-38)76-36-39-16-6-2-7-17-39)53(70)66-49(31-37-14-4-1-5-15-37)57(74)68-35-43(77-58(75)61-29-28-60)33-50(68)55(72)67-51(40-18-8-3-9-19-40)56(73)65-48(54(71)63-46)32-41-34-62-45-21-11-10-20-44(41)45/h1-11,14-21,23-26,34,43,46-51,62H,12-13,22,27-33,35-36,59-60H2,(H,61,75)(H,63,71)(H,64,69)(H,65,73)(H,66,70)(H,67,72)/t43-,46+,47+,48-,49+,50+,51+/m1/s1

HIDE SMILES / InChI

Molecular Formula C58H66N10O9
Molecular Weight 1047.2062
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 7 / 7
E/Z Centers 0
Optical Activity UNSPECIFIED

Description

Pasireotide is a synthetic long-acting cyclic hexapeptide with somatostatin-like activity. It is marketed as a diaspartate salt called Signifor, indicated for the treatment of adult patients with Cushing’s disease for whom pituitary surgery is not an option or has not been curative. SIGNIFOR is an injectable cyclohexapeptide somatostatin analogue. Pasireotide exerts its pharmacological activity via binding to somatostatin receptors (ssts). Pasireotide binds and activates the hsst receptors resulting in inhibition of ACTH secretion, which leads to decreased cortisol secretion.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
9.3 nM [IC50]
1.0 nM [IC50]
1.5 nM [IC50]
0.16 nM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
SIGNIFOR

Cmax

ValueDoseCo-administeredAnalytePopulation
8.23 ng/mL
20 mg 1 times / 4 weeks multiple, intramuscular
PASIREOTIDE plasma
Homo sapiens
17.3 ng/mL
40 mg 1 times / 4 weeks multiple, intramuscular
PASIREOTIDE plasma
Homo sapiens
16.2 ng/mL
60 mg 1 times / 4 weeks multiple, intramuscular
PASIREOTIDE plasma
Homo sapiens
7.19 ng/mL
20 mg single, intramuscular
PASIREOTIDE plasma
Homo sapiens
10.3 ng/mL
40 mg single, intramuscular
PASIREOTIDE plasma
Homo sapiens
17 ng/mL
60 mg single, intramuscular
PASIREOTIDE plasma
Homo sapiens
5.9 ng/mL
60 mg single, subcutaneous
PASIREOTIDE plasma
Homo sapiens
38.7 ng/mL
0.6 mg 2 times / day steady-state, subcutaneous
PASIREOTIDE plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
4090 ng × h/mL
60 mg single, subcutaneous
PASIREOTIDE plasma
Homo sapiens
161.1 ng × h/mL
0.6 mg 2 times / day steady-state, subcutaneous
PASIREOTIDE plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
12 h
60 mg single, subcutaneous
PASIREOTIDE plasma
Homo sapiens
4.4 h
0.6 mg 2 times / day steady-state, subcutaneous
PASIREOTIDE plasma
Homo sapiens

Doses

AEs

Drug as perpetrator​

Drug as victim

Tox targets

PubMed

Patents

Sample Use Guides

In Vivo Use Guide
Recommended initial dosage is either 0.6 mg or 0.9 mg by subcutaneous injection twice a day; recommended dosage range is 0.3 mg to 0.9 mg twice a day
Route of Administration: Other
In Vitro Use Guide
Primary cultures from normal human and rat adrenals were incubated with 10-100 nM Pasireotide with and without 10nM ACTH. Dose-response studies with 1 nM-1 uM Pasireotide were performed on rat adrenals. Cortisol/corticosterone levels in medium were measured after 4 and 24h. Pasireotide (10nM) significantly increased corticosteroid levels after 24h incubation in both human (36.4 ± 0.43 ng/well vs 27.7 ± 3.17 ng/well, p<0.05) and rat (16.2 ± 1.16 ng/well vs 11.6 ± 0.92 ng/well p<0.05) adrenals; lesser effects were observed with 100 nM Pasireotide (33.4 ± 2.59 ng/well vs 27.7 ± 3.17 ng/well p<0.05; 13.4 ± 0.82 ng/well vs 11.6 ± 0.92 ng/well, N.S. vs baseline secretion for human and rat adrenals, respectively). Dose-response curves confirmed maximal effect at 10nM Pasireotide.
Substance Class Chemical
Record UNII
98H1T17066
Record Status Validated (UNII)
Record Version