Description
INNO-206 (Aldoxorubicin) is the 6-maleimidocaproyl hydrazone derivative prodrug of the anthracycline antibiotic doxorubicin (DOXO-EMCH) with antineoplastic activity.
Synonyms
Doxorubicin-hydrazone-caproyl-maleimide; Aldoxorubicin; 2,5-Dihydro-2,5-dioxo-1H-pyrrole-1-hexanoic acid (2E)-2-[1-[(2S,4S)-4-[(3-amino-2,3,6-trideoxy-α-L-lyxo-hexopyranosyl)oxy]-1,2,3,4,6,11-hexahydro-2,5,12-trihydroxy-7-methoxy-6,11-dioxo-2-naphthacenyl]-2-hydroxyethylidene]hydrazide; 1H-Pyrrole-1-hexanoic acid, 2,5-dihydro-2,5-dioxo-, (2E)-2-[1-[(2S,4S)-4-[(3-amino-2,3,6-trideoxy-α-L-lyxo-hexopyranosyl)oxy]-1,2,3,4,6,11-hexahydro-2,5,12-trihydroxy-7-methoxy-6,11-dioxo-2-naphthacenyl]-2-hydroxyethylidene]hydrazide
IUPAC Name
N-[(E)-[1-[(2S,4S)-4-[(2R,4S,5S,6S)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-2,5,12-trihydroxy-7-methoxy-6,11-dioxo-3,4-dihydro-1H-tetracen-2-yl]-2-hydroxyethylidene]amino]-6-(2,5-dioxopyrrol-1-yl)hexanamide
Canonical SMILES
CC1C(C(CC(O1)OC2CC(CC3=C(C4=C(C(=C23)O)C(=O)C5=C(C4=O)C=CC=C5OC)O)(C(=NNC(=O)CCCCCN6C(=O)C=CC6=O)CO)O)N)O
InChI
InChI=1S/C37H42N4O13/c1-17-32(46)20(38)13-27(53-17)54-22-15-37(51,23(16-42)39-40-24(43)9-4-3-5-12-41-25(44)10-11-26(41)45)14-19-29(22)36(50)31-30(34(19)48)33(47)18-7-6-8-21(52-2)28(18)35(31)49/h6-8,10-11,17,20,22,27,32,42,46,48,50-51H,3-5,9,12-16,38H2,1-2H3,(H,40,43)/b39-23+/t17-,20-,22-,27-,32+,37-/m0/s1
InChIKey
OBMJQRLIQQTJLR-USGQOSEYSA-N
Solubility
Soluble in DMSO
Index Of Refraction
1.708
Mechanism Of Action
INNO-206 is the (6-Maleimidocaproyl) hydrazone of doxorubicin. INNO-206 is a prodrug of doxorubicin that binds endogenous albumin after administration. The bound doxorubicin is released in the acidic environment of the tumor cell through cleavage of an acid sensitive linker. In preclinical models, INNO-206 was superior to doxorubicin with regard to antitumor efficacy and toxicity.
In Vitro
Aldoxorubicin (INNO-206) inhibited blood vessel formation and reduced multiple myeloma cell growth in a pH-dependent fashion. INNO-206 alone produced marked anti-multiple myeloma effects in vivo at doses that doxorubicin was toxic, and the combination of INNO-206 plus bortezomib produced increased anti-multiple myeloma effects compared with either agent alone. In contrast, all mice receiving bortezomib with doxorubicin or PLD died.
In Vivo
INNO-206 inhibited blood vessel formation and reduced multiple myeloma cell growth in a pH-dependent fashion. INNO-206 alone produced marked anti-multiple myeloma effects in vivo at doses that doxorubicin was toxic, and the combination of INNO-206 plus bortezomib produced increased anti-multiple myeloma effects compared with either agent alone. In contrast, all mice receiving bortezomib with doxorubicin or PLD died.
Clinical Trial Information
NCT Number | Condition Or Disease | Phase | Start Date | Sponsor | Status |
NCT01580397 | Pancreatic Ductal Adenocarcinoma | Phase 2 | 2013-06-28 | CytRx | Completed |
NCT02014844 | Glioblastoma | Phase 2 | 2017-01-06 | CytRx | Completed |
NCT01706835 | Advanced Solid Tumors | Phase 1 | 2014-12-17 | CytRx | Completed |
NCT02235688 | Metastatic Solid Tumors | Phase 1 | 2017-06-07 | CytRx | Completed |
NCT01337505 | Malignant Solid Tumour | Phase 1 | 2013-02-13 | CytRx | Completed |
Application
ADCs Cytotoxin-Linker
Shelf Life
≥360 days if stored properly
Shipping
Room temperature, or blue ice upon request.
Storage
Store at 2-8°C for short term (days to weeks) or -20°C for long term (months to years)