Details of the Drug Combination

General Information of Drug Combination (ID: DCK6Y7F)

• Drug Combination Name: Bepridil + Mephenytoin
• Indication: Chronic myelogenous leukemia; Status: Investigative [1]
• Component Drugs:
  Bepridil (DM0RKS4): Small molecular drug
  Mephenytoin (DM5UGDK): Small molecular drug
• High-throughput Screening Result:
  Testing Cell Line: KBM-7
  Zero Interaction Potency (ZIP) Score: 26.13
  Bliss Independence Score: 26.13
  Loewe Additivity Score: 42.07
  LHighest Single Agent (HSA) Score: 42.08

Molecular Interaction Atlas of This Drug Combination

Indication(s) of Bepridil

Disease Entry	ICD 11	Status	REF
Chronic/stable angina	BA40.1	Approved	[2]

Bepridil Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Calcium channel unspecific (CaC)	TT5HONZ	NOUNIPROTAC	Modulator	[4]

Bepridil Interacts with 1 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
P-glycoprotein 1 (ABCB1)	DTUGYRD	MDR1_HUMAN	Substrate	[5]

Bepridil Interacts with 2 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[6]
Cytochrome P450 2D6 (CYP2D6)	DECB0K3	CP2D6_HUMAN	Metabolism	[7]

Bepridil Interacts with 7 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Tumor necrosis factor receptor superfamily member 10B (TNFRSF10B)	OTA1CPBV	TR10B_HUMAN	Increases Expression	[8]
Cyclic AMP-dependent transcription factor ATF-4 (ATF4)	OTRFV19J	ATF4_HUMAN	Increases Expression	[8]
Potassium voltage-gated channel subfamily A member 5 (KCNA5)	OTHI2N71	KCNA5_HUMAN	Decreases Activity	[9]
DNA damage-inducible transcript 3 protein (DDIT3)	OTI8YKKE	DDIT3_HUMAN	Increases Expression	[8]
Tumor necrosis factor ligand superfamily member 10 (TNFSF10)	OT4PXBTA	TNF10_HUMAN	Increases Response To Substance	[8]
Potassium voltage-gated channel subfamily H member 2 (KCNH2)	OTZX881H	KCNH2_HUMAN	Decreases Activity	[10]
Eukaryotic translation initiation factor 2A (EIF2A)	OTWXELQP	EIF2A_HUMAN	Increases Phosphorylation	[8]

Indication(s) of Mephenytoin

Disease Entry	ICD 11	Status	REF
Epilepsy	8A60-8A68	Approved	[3]

Mephenytoin Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Voltage-gated sodium channel alpha Nav1.5 (SCN5A)	TTZOVE0	SCN5A_HUMAN	Blocker	[11]

Mephenytoin Interacts with 9 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[12]
Cytochrome P450 1A2 (CYP1A2)	DEJGDUW	CP1A2_HUMAN	Metabolism	[13]
Cytochrome P450 2D6 (CYP2D6)	DECB0K3	CP2D6_HUMAN	Metabolism	[14]
Cytochrome P450 3A5 (CYP3A5)	DEIBDNY	CP3A5_HUMAN	Metabolism	[12]
Cytochrome P450 2C18 (CYP2C18)	DEZMWRE	CP2CI_HUMAN	Metabolism	[15]
Cytochrome P450 2C8 (CYP2C8)	DES5XRU	CP2C8_HUMAN	Metabolism	[16]
Cytochrome P450 2C9 (CYP2C9)	DE5IED8	CP2C9_HUMAN	Metabolism	[15]
Cytochrome P450 2B6 (CYP2B6)	DEPKLMQ	CP2B6_HUMAN	Metabolism	[17]
Mephenytoin 4-hydroxylase (CYP2C19)	DEGTFWK	CP2CJ_HUMAN	Metabolism	[18]

Mephenytoin Interacts with 1 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Cytochrome P450 2B6 (CYP2B6)	OTOYO4S7	CP2B6_HUMAN	Decreases Methylation	[19]

References

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• [2] URL: http://www.guidetopharmacology.org Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Ligand id: 2337).
• [3] URL: http://www.guidetopharmacology.org Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Ligand id: 7223).
• [4] Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services.
• [5] Mammalian drug efflux transporters of the ATP binding cassette (ABC) family in multidrug resistance: A review of the past decade. Cancer Lett. 2016 Jan 1;370(1):153-64.
• [6] Integrated analysis on the physicochemical properties of dihydropyridine calcium channel blockers in grapefruit juice interactions. Curr Pharm Biotechnol. 2012 Jul;13(9):1705-17.
• [7] Serum flecainide S/R ratio reflects the CYP2D6 genotype and changes in CYP2D6 activity. Drug Metab Pharmacokinet. 2015 Aug;30(4):257-62.
• [8] Amiodarone sensitizes human glioma cells but not astrocytes to TRAIL-induced apoptosis via CHOP-mediated DR5 upregulation. Neuro Oncol. 2011 Mar;13(3):267-79. doi: 10.1093/neuonc/noq195. Epub 2011 Feb 3.
• [9] Inhibitory effect of bepridil on hKv1.5 channel current: comparison with amiodarone and E-4031. Eur J Pharmacol. 2001 Nov 2;430(2-3):149-57. doi: 10.1016/s0014-2999(01)01381-4.
• [10] Automated tight seal electrophysiology for assessing the potential hERG liability of pharmaceutical compounds. Assay Drug Dev Technol. 2004 Oct;2(5):497-506. doi: 10.1089/adt.2004.2.497.
• [11] Lacosamide: a new approach to target voltage-gated sodium currents in epileptic disorders. CNS Drugs. 2009;23(7):555-68.
• [12] Species differences in stereoselective metabolism of mephenytoin by cytochrome P450 (CYP2C and CYP3A). J Pharmacol Exp Ther. 1993 Jan;264(1):89-94.
• [13] Comparison of (S)-mephenytoin and proguanil oxidation in vitro: contribution of several CYP isoforms. Br J Clin Pharmacol. 1999 Aug;48(2):158-67.
• [14] Ethnic differences in genetic polymorphisms of CYP2D6, CYP2C19, CYP3As and MDR1/ABCB1. Drug Metab Pharmacokinet. 2004 Apr;19(2):83-95.
• [15] Cytochrome P450 metabolic dealkylation of nine N-nitrosodialkylamines by human liver microsomes. Carcinogenesis. 1996 Sep;17(9):2029-34.
• [16] Evidence that CYP2C19 is the major (S)-mephenytoin 4'-hydroxylase in humans. Biochemistry. 1994 Feb 22;33(7):1743-52.
• [17] Substrates, inducers, inhibitors and structure-activity relationships of human Cytochrome P450 2C9 and implications in drug development. Curr Med Chem. 2009;16(27):3480-675.
• [18] Cytochromes P450 mediating the N-demethylation of amitriptyline. Br J Clin Pharmacol. 1997 Feb;43(2):137-44.
• [19] Evaluation of cytochrome P450 probe substrates commonly used by the pharmaceutical industry to study in vitro drug interactions. Drug Metab Dispos. 2002 Dec;30(12):1311-9.