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Details

Stereochemistry ABSOLUTE
Molecular Formula C57H70N12O9S2
Molecular Weight 1131.371
Optical Activity UNSPECIFIED
Defined Stereocenters 8 / 8
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of VAPREOTIDE

SMILES

CC(C)[C@@H]1NC(=O)[C@H](CCCCN)NC(=O)[C@@H](CC2=CNC3=CC=CC=C23)NC(=O)[C@H](CC4=CC=C(O)C=C4)NC(=O)[C@H](CSSC[C@H](NC1=O)C(=O)N[C@@H](CC5=CNC6=CC=CC=C56)C(N)=O)NC(=O)[C@H](N)CC7=CC=CC=C7

InChI

InChIKey=SWXOGPJRIDTIRL-DOUNNPEJSA-N
InChI=1S/C57H70N12O9S2/c1-32(2)49-57(78)68-48(55(76)64-44(50(60)71)26-35-28-61-41-16-8-6-14-38(35)41)31-80-79-30-47(67-51(72)40(59)24-33-12-4-3-5-13-33)56(77)65-45(25-34-19-21-37(70)22-20-34)53(74)66-46(27-36-29-62-42-17-9-7-15-39(36)42)54(75)63-43(52(73)69-49)18-10-11-23-58/h3-9,12-17,19-22,28-29,32,40,43-49,61-62,70H,10-11,18,23-27,30-31,58-59H2,1-2H3,(H2,60,71)(H,63,75)(H,64,76)(H,65,77)(H,66,74)(H,67,72)(H,68,78)(H,69,73)/t40-,43+,44+,45+,46-,47+,48+,49+/m1/s1

HIDE SMILES / InChI

Molecular Formula C57H70N12O9S2
Molecular Weight 1131.371
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 8 / 8
E/Z Centers 0
Optical Activity UNSPECIFIED

Description

Vapreotide (Sanvar) is cyclic octapeptide analog of somatostatin with higher metabolic stability than the parent hormone and developed by Debiopharm Group for the treatment of esophageal variceal bleeding in patients with cirrhotic liver disease and AIDS-related diarrhea. Somatostatin inhibits the secretion of vasodilatory peptides from the gastrointestinal tract, including glucagon, which has been shown to contribute to the maintenance of portal hypertension. While natural somatostatin has a very short half-life (3 min), the elimination half-life of vapreotide is reported to be approximately 10 times longer than that of its parent compound. Pharmacodynamic studies of healthy volunteers demonstrated suppression of gastric acid secretion and inhibition of the secretion of pancreatic enzyme, which is similar to somatostatin. Vapreotide has demonstrated efficacy in the early management of acute variceal hemorrhage but only based on combined primary endpoints of hemostasis and survival after 5 days. In addition, vapreotide’s efficacy is limited to only one major study performed in Europe and not yet in the United States. Although it did not show a significant reduction in mortality, vapreotide’s observed the effect on hemostasis, as well as its favorable safety profile. Adverse effects that occurred in the vapreotide trials were generally mild and primarily included gastrointestinal symptoms and alterations of the gastrointestinal hormonal system. Vapreotide not recommended for approval by an FDA Advisory Panel due to Insufficient evidence that the drug provided a benefit in the treatment for acute esophageal variceal bleeding.

Originator

Approval Year

PubMed

Substance Class Chemical
Record UNII
2PK59M9GFF
Record Status Validated (UNII)
Record Version