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Details

Stereochemistry ABSOLUTE
Molecular Formula C27H45NO
Molecular Weight 399.6523
Optical Activity UNSPECIFIED
Defined Stereocenters 7 / 7
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of OLESOXIME, E-

SMILES

CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CCC4=C\C(CC[C@]4(C)[C@H]3CC[C@]12C)=N\O

InChI

InChIKey=QNTASHOAVRSLMD-SIWSWZRQSA-N
InChI=1S/C27H45NO/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28-29)13-15-26(20,4)25(22)14-16-27(23,24)5/h17-19,22-25,29H,6-16H2,1-5H3/b28-21+/t19-,22+,23-,24+,25+,26+,27-/m1/s1

HIDE SMILES / InChI
Olesoxime (TRO19622) a small-molecule with a cholesterol-like structure has remarkable neuroprotective properties for motor neurons in cell culture and in rodents. The biopharmaceutical company Trophos initially developed this compound. This medicine is in phase II clinical trial in treating spinal muscular atrophy and in phase I for patients with stable relapsing remitting multiple sclerosis. This drug was also investigated in phase III clinical trial for amyotrophic lateral sclerosis, but it did not demonstrate a significant increase in survival versus placebo and that study was discontinued. Preclinical studies have demonstrated that the olesoxime promoted the function and survival of neurons and other cell types under disease-relevant stress conditions through interactions with the mitochondrial permeability transition pore (mPTP).

CNS Activity

Curator's Comment: Known to be CNS penetrant in mouse, rat. Human data not available

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Target ID: mitochondrial permeability transition pore
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Overview

Overview

OverviewOther

Other InhibitorOther SubstrateOther Inducer







Drug as perpetrator​

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
no [IC50 43.2771 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
Drug as victimTox targets
PubMed

PubMed

TitleDatePubMed
Olesoxime prevents microtubule-targeting drug neurotoxicity: selective preservation of EB comets in differentiated neuronal cells.
2010-09-15
Olesoxime, a cholesterol-like neuroprotectant for the potential treatment of amyotrophic lateral sclerosis.
2010-08
Clinical trials in CNS--SMi's eighth annual conference.
2010-02
Olesoxime (cholest-4-en-3-one, oxime): analgesic and neuroprotective effects in a rat model of painful peripheral neuropathy produced by the chemotherapeutic agent, paclitaxel.
2009-12-15
Mitochondrial calcium and the permeability transition in cell death.
2009-11
Dysfunction of mitochondria and sarcoplasmic reticulum in the pathogenesis of collagen VI muscular dystrophies.
2008-12
Specific antinociceptive activity of cholest-4-en-3-one, oxime (TRO19622) in experimental models of painful diabetic and chemotherapy-induced neuropathy.
2008-08
Identification and characterization of cholest-4-en-3-one, oxime (TRO19622), a novel drug candidate for amyotrophic lateral sclerosis.
2007-08

Sample Use Guides

Participants will receive 10 milligrams per kilogram (mg/kg) suspension once a day either orally or via a naso-gastric or gastrostomy tube with the main meal (preferably at the same time of the day)
Route of Administration: Oral
Neuroprotective dose-effect of olesoxime against motor neuron cell death was studied. Rat embryonic motor neurons were cultured in 96-well plates in the absence of trophic factors and with increasing concentrations of olesoxime (concentrations ranging from 0.1 to 10 µM), or with pure syn or anti forms of olesoxime. Motor neuron survival was measured after 3 days or 7 days in vitro by direct counting of live cells labeled with calcein-AM. Survival is expressed as a ratio of surviving cell (A-B) relative to positive controls treated with a cocktail of neurotrophic factors (NTFs) and negative controls that received DMSO alone (0.1%). Treatment with olesoxime produced a dose-dependent increase in cell survival with EC50 around 3 µM. Importantly, both syn and anti forms were equally potent.
Name Type Language
OLESOXIME, E-
Preferred Name English
Code System Code Type Description
PUBCHEM
9930827
Created by admin on Mon Mar 31 22:19:55 GMT 2025 , Edited by admin on Mon Mar 31 22:19:55 GMT 2025
PRIMARY
CAS
66538-08-7
Created by admin on Mon Mar 31 22:19:55 GMT 2025 , Edited by admin on Mon Mar 31 22:19:55 GMT 2025
PRIMARY
FDA UNII
8V8EF6094N
Created by admin on Mon Mar 31 22:19:55 GMT 2025 , Edited by admin on Mon Mar 31 22:19:55 GMT 2025
PRIMARY