Details
Stereochemistry | ACHIRAL |
Molecular Formula | C15H16F3N5O4S.ClH |
Molecular Weight | 455.84 |
Optical Activity | NONE |
Defined Stereocenters | 0 / 0 |
E/Z Centers | 0 |
Charge | 0 |
SHOW SMILES / InChI
SMILES
Cl.CN(CC(=O)NC1=NC2=CC=C(OC(F)(F)F)C=C2S1)C(=O)CNC(=O)CN
InChI
InChIKey=ZRZLEMQBDKNTLJ-UHFFFAOYSA-N
InChI=1S/C15H16F3N5O4S.ClH/c1-23(13(26)6-20-11(24)5-19)7-12(25)22-14-21-9-3-2-8(4-10(9)28-14)27-15(16,17)18;/h2-4H,5-7,19H2,1H3,(H,20,24)(H,21,22,25);1H
DescriptionCurator's Comment: description was created based on several sources, including:
https://www.drugs.com/mtm/riluzole.html
http://www.rxlist.com/rilutek-drug.htm
https://www.ncbi.nlm.nih.gov/pubmed/8813989
Curator's Comment: description was created based on several sources, including:
https://www.drugs.com/mtm/riluzole.html
http://www.rxlist.com/rilutek-drug.htm
https://www.ncbi.nlm.nih.gov/pubmed/8813989
Riluzole, a member of the benzothiazole class, is indicated for the treatment of patients with amyotrophic lateral sclerosis. Its pharmacological properties include the following, some of which may be related to its effect: 1) an inhibitory effect on glutamate release (activation of glutamate reuptake), 2) inactivation of voltage-dependent sodium channels, and 3) ability to interfere with intracellular events that follow transmitter binding at excitatory amino acid receptors. Common adverse reactions include headache, abdominal pain, back pain, vomiting, dyspepsia, diarrhea, dizziness. Riluzole-treated patients that take other hepatotoxic drugs may be at increased risk for hepatotoxicity.
Originator
Approval Year
Targets
Primary Target | Pharmacology | Condition | Potency |
---|---|---|---|
Target ID: Q12791|||Q5SQR9 Gene ID: 3778.0 Gene Symbol: KCNMA1 Target Organism: Homo sapiens (Human) Sources: https://www.ncbi.nlm.nih.gov/pubmed/18068197 |
|||
Target ID: CHEMBL2231 Sources: https://www.ncbi.nlm.nih.gov/pubmed/17852022 |
|||
Target ID: CHEMBL3356 |
|||
Target ID: Q14524|||E9PFW7 Gene ID: 6331.0 Gene Symbol: SCN5A Target Organism: Homo sapiens (Human) |
2.3 µM [IC50] |
Conditions
Condition | Modality | Targets | Highest Phase | Product |
---|---|---|---|---|
Primary | RILUTEK Approved UseRILUTEK is indicated for the treatment of patients with amyotrophic lateral sclerosis (ALS). Riluzole extends survival and/or time to tracheostomy. Launch Date1995 |
Cmax
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
359 ng/mL EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/21284699 |
50 mg 1 times / day steady-state, oral dose: 50 mg route of administration: Oral experiment type: STEADY-STATE co-administered: |
RILUZOLE plasma | Homo sapiens population: UNHEALTHY age: ADOLESCENT sex: FEMALE / MALE food status: UNKNOWN |
AUC
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
2257 ng × h/mL EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/21284699 |
50 mg 1 times / day steady-state, oral dose: 50 mg route of administration: Oral experiment type: STEADY-STATE co-administered: |
RILUZOLE plasma | Homo sapiens population: UNHEALTHY age: ADOLESCENT sex: FEMALE / MALE food status: UNKNOWN |
T1/2
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
7.8 h EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/21284699 |
50 mg 1 times / day steady-state, oral dose: 50 mg route of administration: Oral experiment type: STEADY-STATE co-administered: |
RILUZOLE plasma | Homo sapiens population: UNHEALTHY age: ADOLESCENT sex: FEMALE / MALE food status: UNKNOWN |
Funbound
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
4% |
RILUZOLE plasma | Homo sapiens population: UNKNOWN age: UNKNOWN sex: UNKNOWN food status: UNKNOWN |
Doses
Dose | Population | Adverse events |
---|---|---|
100 mg 2 times / day multiple, oral Highest studied dose Dose: 100 mg, 2 times / day Route: oral Route: multiple Dose: 100 mg, 2 times / day Sources: Page: p.1429 |
unhealthy, ADULT n = 244 Health Status: unhealthy Condition: amyotrophic lateral sclerosis Age Group: ADULT Sex: M+F Food Status: UNKNOWN Population Size: 244 Sources: Page: p.1429 |
Disc. AE: Lung function decreased... Other AEs: AST increased, Vomiting... AEs leading to discontinuation/dose reduction: Lung function decreased (4%) Other AEs:AST increased (11.9%) Sources: Page: p.1429Vomiting (1%) Abdominal pain (3%) Dizziness (1%) Asthenia (4%) Malaise (2%) Nausea (5%) |
AEs
AE | Significance | Dose | Population |
---|---|---|---|
Dizziness | 1% | 100 mg 2 times / day multiple, oral Highest studied dose Dose: 100 mg, 2 times / day Route: oral Route: multiple Dose: 100 mg, 2 times / day Sources: Page: p.1429 |
unhealthy, ADULT n = 244 Health Status: unhealthy Condition: amyotrophic lateral sclerosis Age Group: ADULT Sex: M+F Food Status: UNKNOWN Population Size: 244 Sources: Page: p.1429 |
Vomiting | 1% | 100 mg 2 times / day multiple, oral Highest studied dose Dose: 100 mg, 2 times / day Route: oral Route: multiple Dose: 100 mg, 2 times / day Sources: Page: p.1429 |
unhealthy, ADULT n = 244 Health Status: unhealthy Condition: amyotrophic lateral sclerosis Age Group: ADULT Sex: M+F Food Status: UNKNOWN Population Size: 244 Sources: Page: p.1429 |
AST increased | 11.9% | 100 mg 2 times / day multiple, oral Highest studied dose Dose: 100 mg, 2 times / day Route: oral Route: multiple Dose: 100 mg, 2 times / day Sources: Page: p.1429 |
unhealthy, ADULT n = 244 Health Status: unhealthy Condition: amyotrophic lateral sclerosis Age Group: ADULT Sex: M+F Food Status: UNKNOWN Population Size: 244 Sources: Page: p.1429 |
Malaise | 2% | 100 mg 2 times / day multiple, oral Highest studied dose Dose: 100 mg, 2 times / day Route: oral Route: multiple Dose: 100 mg, 2 times / day Sources: Page: p.1429 |
unhealthy, ADULT n = 244 Health Status: unhealthy Condition: amyotrophic lateral sclerosis Age Group: ADULT Sex: M+F Food Status: UNKNOWN Population Size: 244 Sources: Page: p.1429 |
Abdominal pain | 3% | 100 mg 2 times / day multiple, oral Highest studied dose Dose: 100 mg, 2 times / day Route: oral Route: multiple Dose: 100 mg, 2 times / day Sources: Page: p.1429 |
unhealthy, ADULT n = 244 Health Status: unhealthy Condition: amyotrophic lateral sclerosis Age Group: ADULT Sex: M+F Food Status: UNKNOWN Population Size: 244 Sources: Page: p.1429 |
Asthenia | 4% | 100 mg 2 times / day multiple, oral Highest studied dose Dose: 100 mg, 2 times / day Route: oral Route: multiple Dose: 100 mg, 2 times / day Sources: Page: p.1429 |
unhealthy, ADULT n = 244 Health Status: unhealthy Condition: amyotrophic lateral sclerosis Age Group: ADULT Sex: M+F Food Status: UNKNOWN Population Size: 244 Sources: Page: p.1429 |
Lung function decreased | 4% Disc. AE |
100 mg 2 times / day multiple, oral Highest studied dose Dose: 100 mg, 2 times / day Route: oral Route: multiple Dose: 100 mg, 2 times / day Sources: Page: p.1429 |
unhealthy, ADULT n = 244 Health Status: unhealthy Condition: amyotrophic lateral sclerosis Age Group: ADULT Sex: M+F Food Status: UNKNOWN Population Size: 244 Sources: Page: p.1429 |
Nausea | 5% | 100 mg 2 times / day multiple, oral Highest studied dose Dose: 100 mg, 2 times / day Route: oral Route: multiple Dose: 100 mg, 2 times / day Sources: Page: p.1429 |
unhealthy, ADULT n = 244 Health Status: unhealthy Condition: amyotrophic lateral sclerosis Age Group: ADULT Sex: M+F Food Status: UNKNOWN Population Size: 244 Sources: Page: p.1429 |
Overview
CYP3A4 | CYP2C9 | CYP2D6 | hERG |
---|---|---|---|
OverviewOther
Other Inhibitor | Other Substrate | Other Inducer |
---|---|---|
Drug as perpetrator
Target | Modality | Activity | Metabolite | Clinical evidence |
---|---|---|---|---|
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/pre96/020599Orig1s000rev.pdf#page=344 Page: 344.0 |
likely | |||
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/pre96/020599Orig1s000rev.pdf#page=344 Page: 344.0 |
likely | |||
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/pre96/020599Orig1s000rev.pdf#page=344 Page: 344.0 |
likely | |||
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/pre96/020599Orig1s000rev.pdf#page=344 Page: 344.0 |
minor | |||
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/pre96/020599Orig1s000rev.pdf#page=344 Page: 344.0 |
minor | |||
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/pre96/020599Orig1s000rev.pdf#page=344 Page: 344.0 |
minor | |||
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/pre96/020599Orig1s000rev.pdf#page=344 Page: 344.0 |
minor |
Drug as victim
Target | Modality | Activity | Metabolite | Clinical evidence |
---|---|---|---|---|
Page: 8.0 |
unlikely | |||
Page: 8.0 |
unlikely | |||
Page: 8.0 |
unlikely | |||
Page: 8.0 |
unlikely | |||
Sources: https://pubmed.ncbi.nlm.nih.gov/19146924/ Page: 1.0 |
yes | |||
Page: 3.0 |
yes | |||
Page: 8.0 |
yes | likely (co-administration study) Comment: Potential inhibitors of CYP1A2 (e.g. caffeine, phenacetin, theophylline, amitriphtyline, and quinolones) could decrease the rate of riluzole elimination, while inducers of CYP1A2 (e.g. cigarette smoke, charcoal-broiled food, rifampicin, and omeprazole) could increase rate of riluzole elimination Page: 8.0 |
||
yes | no (pharmacogenomic study) Comment: genetic variations in CYP1A1 and CYP1A2 genes do not seem to influence riluzole levels |
Tox targets
Target | Modality | Activity | Metabolite | Clinical evidence |
---|---|---|---|---|
PubMed
Title | Date | PubMed |
---|---|---|
The role of glutamatergic transmission in the pathogenesis of levodopa-induced dyskinesias. Potential therapeutic approaches. | 2001 |
|
The clinical effectiveness and cost-effectiveness of riluzole for motor neurone disease: a rapid and systematic review. | 2001 |
|
Amyotrophic lateral sclerosis associated with pregnancy. | 2001 Dec |
|
Riluzole reduces hyperactivity of subthalamic neurons induced by unilateral 6-OHDA lesion in the rat brain. | 2001 Nov |
|
The Rilutek (riluzole) Global Early Access Programme: an open-label safety evaluation in the treatment of amyotrophic lateral sclerosis. | 2001 Sep |
|
Antiepileptic drugs and agents that inhibit voltage-gated sodium channels prevent NMDA antagonist neurotoxicity. | 2002 |
|
Riluzole for amyotrophic lateral sclerosis (ALS)/motor neuron disease (MND). | 2002 |
|
A fair innings for NICE? | 2002 |
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Cost effectiveness of treatments for amyotrophic lateral sclerosis: a review of the literature. | 2002 |
|
Riluzole rescues cochlear sensory cells from acoustic trauma in the guinea-pig. | 2002 |
|
Workshop on primary progressive multiple sclerosis: meeting summary. | 2002 Apr |
|
Emerging strategies for drug development in motor neuron disease. | 2002 Apr |
|
Sodium channel-blocking agents are not of benefit to rats with kaolin-induced hydrocephalus. | 2002 Aug |
|
Riluzole enhances expression of brain-derived neurotrophic factor with consequent proliferation of granule precursor cells in the rat hippocampus. | 2002 Aug |
|
Molsidomine potentiates the protective activity of GYKI 52466, a non-NMDA antagonist, MK-801, a non-competitive NMDA antagonist, and riluzole against electroconvulsions in mice. | 2002 Aug |
|
Modulation of recombinant and native neuronal SK channels by the neuroprotective drug riluzole. | 2002 Aug 2 |
|
An ACTH- and ATP-regulated background K+ channel in adrenocortical cells is TREK-1. | 2002 Dec 20 |
|
Apraxia of eyelid closure in Huntington's disease. | 2002 Feb |
|
Pharmacological characterization of a non-inactivating outward current observed in mouse cerebellar Purkinje neurones. | 2002 Feb |
|
Contribution of presynaptic Na(+) channel inactivation to paired-pulse synaptic depression in cultured hippocampal neurons. | 2002 Feb |
|
Neuroprotective agent riluzole potentiates postsynaptic GABA(A) receptor function. | 2002 Feb |
|
Riluzole therapy in cervical dystonia. | 2002 Jan |
|
Neuroprotective effect of riluzole in a primate model of Parkinson's disease: behavioral and histological evidence. | 2002 Jan |
|
[Tolerance of riluzole in a phase IIIb clinical trial]. | 2002 Jan-Feb |
|
Riluzole prolongs survival time and alters nuclear inclusion formation in a transgenic mouse model of Huntington's disease. | 2002 Jul |
|
Glutamate transporters and retinal excitotoxicity. | 2002 Jul |
|
Effect of chronic treatment with riluzole on the nigrostriatal dopaminergic system in weaver mutant mice. | 2002 Jul |
|
Effect of Riluzole on serum amino acids in patients with amyotrophic lateral sclerosis. | 2002 Jul |
|
Lamotrigine derivatives and riluzole inhibit INa,P in cortical neurons. | 2002 Jul 2 |
|
Early symptom progression rate is related to ALS outcome: a prospective population-based study. | 2002 Jul 9 |
|
Therapies in amyotrophic lateral sclerosis-beyond riluzole. | 2002 Jun |
|
A comparison of the anti-nociceptive effects of voltage-activated Na+ channel blockers in the formalin test. | 2002 Jun 12 |
|
ALS, motor neuron disease, and related disorders: a personal approach to diagnosis and management. | 2002 Mar |
|
Changes in motor unit numbers in patients with ALS: a longitudinal study using the adapted multiple point stimulation method. | 2002 Mar |
|
Long-term safety of riluzole in amyotrophic lateral sclerosis. | 2002 Mar |
|
Prognostic modelling of therapeutic interventions in amyotrophic lateral sclerosis. | 2002 Mar |
|
How useful are retrospective studies in evaluating therapeutic interventions? | 2002 Mar |
|
A double-blind, placebo-controlled and longitudinal study of riluzole in early Parkinson's disease. | 2002 Mar |
|
Is glutamate involved in transient lower esophageal sphincter relaxations? | 2002 Mar |
|
Riluzole and olanzapine in Huntington's disease. | 2002 Mar |
|
Kainate-induced currents in rat cortical neurons in culture are modulated by riluzole. | 2002 Mar 15 |
|
Interaction between vanilloid and glutamate receptors in the central modulation of nociception. | 2002 Mar 29 |
|
A study of riluzole in the treatment of advanced stage or elderly patients with amyotrophic lateral sclerosis. | 2002 May |
|
Riluzole treatment in advanced ALS. | 2002 May |
|
Respiratory rhythm: an emergent network property? | 2002 May 30 |
|
Voltage-gated sodium ion channels in prostate cancer: expression and activity. | 2002 May-Jun |
|
Effect of riluzole on cytosolic Ca2+ increase in human osteosarcoma cells. | 2002 Nov |
|
Interaction of high concentrations of riluzole with recombinant skeletal muscle sodium channels and adult-type nicotinic receptor channels. | 2002 Oct |
|
Chronic morphine induces downregulation of spinal glutamate transporters: implications in morphine tolerance and abnormal pain sensitivity. | 2002 Sep 15 |
|
Adjunctive modafinil in ALS. | 2002 Spring |
Sample Use Guides
50 mg twice daily, taken at least 1 hour before or 2
hours after a meal
Route of Administration:
Oral
In Vitro Use Guide
Sources: https://www.ncbi.nlm.nih.gov/pubmed/9316860
In vitro incubation of [14C]riluzole (15 microM) with human hepatic microsomes and NADPH or UDPGA cofactors resulted in formation of N-hydroxyriluzole (K(m) = 30 microM) or an unidentified glucuroconjugate (K(m) = 118 microM). Human microsomal riluzole N-hydroxylation was most strongly inhibited by the CYP1A2 inhibitor alpha-naphthoflavone (IC50 = 0.42 microM). Thus, riluzole is predominantly metabolized by CYP1A2 in human hepatic microsomes to N-hydroxyriluzole.
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Classification Tree | Code System | Code | ||
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FDA ORPHAN DRUG |
520016
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1926204-76-3
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DE-175
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133082858
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BQ5F77DZS3
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C174644
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300000011157
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ACTIVE MOIETY
SUBSTANCE RECORD