Details of the Drug Combination

General Information of Drug Combination (ID: DC0N038)

• Drug Combination Name: Vemurafenib + Digoxin
• Indication: Malignant Melanoma, Neoplasms; Status: Phase 1 [1]
• Component Drugs:
  Vemurafenib (DM62UG5): Small molecular drug
  Digoxin (DMQCTIH): Small molecular drug

Molecular Interaction Atlas of This Drug Combination

Indication(s) of Vemurafenib

Disease Entry	ICD 11	Status	REF
Melanoma	2C30	Approved	[2]

Vemurafenib Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Serine/threonine-protein kinase B-raf (BRAF)	TTWCGQT	BRAF_HUMAN	Modulator	[7]

Vemurafenib Interacts with 3 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
P-glycoprotein 1 (ABCB1)	DTUGYRD	MDR1_HUMAN	Substrate	[8]
Organic anion transporting polypeptide 1B1 (SLCO1B1)	DT3D8F0	SO1B1_HUMAN	Substrate	[9]
Organic anion transporting polypeptide 1B3 (SLCO1B3)	DT9C1TS	SO1B3_HUMAN	Substrate	[9]

Vemurafenib Interacts with 1 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[10]

Vemurafenib Interacts with 8 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Microphthalmia-associated transcription factor (MITF)	OT6XJCZH	MITF_HUMAN	Affects Expression	[5]
Myc proto-oncogene protein (MYC)	OTPV5LUK	MYC_HUMAN	Decreases Expression	[11]
C-C motif chemokine 2 (CCL2)	OTAD2HEL	CCL2_HUMAN	Increases Expression	[12]
Mitogen-activated protein kinase 3 (MAPK3)	OTCYKGKO	MK03_HUMAN	Decreases Phosphorylation	[6]
Mitogen-activated protein kinase 1 (MAPK1)	OTH85PI5	MK01_HUMAN	Decreases Phosphorylation	[6]
CD70 antigen (CD70)	OTHB2AL1	CD70_HUMAN	Decreases Expression	[13]
Melanocyte protein PMEL (PMEL)	OTCDDHHM	PMEL_HUMAN	Increases Expression	[5]
Melanoma antigen recognized by T-cells 1 (MLANA)	OT1N2S2K	MAR1_HUMAN	Increases Expression	[5]

Indication(s) of Digoxin

Disease Entry	ICD 11	Status	REF
Arrhythmia	BC9Z	Approved	[3]
Atrial fibrillation	BC81.3	Approved	[4]
Chronic heart failure	BD1Z	Approved	[4]
Congestive cardiac insufficiency	BD1Z	Approved	[3]
Heart failure	BD10-BD13	Approved	[3]

Digoxin Interacts with 2 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Sodium/potassium-transporting ATPase (SPT ATPase)	TTQ38E9	AT1A1_HUMAN; AT1A2_HUMAN; AT1A3_HUMAN; AT1B1_HUMAN; AT1B2_HUMAN; AT1B3_HUMAN	Inhibitor	[15]
Organic anion transporter M1 (SLCO4C1)	TTACFNR	SO4C1_HUMAN	Modulator	[16]

Digoxin Interacts with 7 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
P-glycoprotein 1 (ABCB1)	DTUGYRD	MDR1_HUMAN	Substrate	[17]
Multidrug resistance protein 3 (ABCB4)	DTZRMK5	MDR3_HUMAN	Substrate	[18]
Organic anion transporting polypeptide 1B3 (SLCO1B3)	DT9C1TS	SO1B3_HUMAN	Substrate	[19]
Organic anion transporting polypeptide 2B1 (SLCO2B1)	DTPFTEQ	SO2B1_HUMAN	Substrate	[20]
Organic solute transporter subunit alpha (SLC51A)	DTMEQ32	OSTA_HUMAN	Substrate	[21]
Organic solute transporter subunit beta (SLC51B)	DT1V9AJ	OSTB_HUMAN	Substrate	[21]
Organic anion transporting polypeptide 4C1 (SLCO4C1)	DTY0QMU	SO4C1_HUMAN	Substrate	[22]

Digoxin Interacts with 3 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[23]
Cardiac glycoside reductase 1 (cgr1)	DE84PFW	CGR1_EGGLE	Metabolism	[24]
Cardiac glycoside reductase 2 (cgr2)	DE9VSLW	CGR2_EGGLE	Metabolism	[24]

Digoxin Interacts with 9 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
ATP-dependent translocase ABCB1 (ABCB1)	OTEJROBO	MDR1_HUMAN	Increases Expression	[25]
Interleukin-6 receptor subunit alpha (IL6R)	OTCQL07Z	IL6RA_HUMAN	Decreases Expression	[14]
Interleukin-8 (CXCL8)	OTS7T5VH	IL8_HUMAN	Increases Expression	[26]
C-C motif chemokine 4 (CCL4)	OT6B8P25	CCL4_HUMAN	Decreases Expression	[14]
C-C motif chemokine 2 (CCL2)	OTAD2HEL	CCL2_HUMAN	Decreases Expression	[14]
C-C motif chemokine 5 (CCL5)	OTSCA5CK	CCL5_HUMAN	Decreases Expression	[14]
Natriuretic peptides B (NPPB)	OTSN2IPY	ANFB_HUMAN	Increases Expression	[27]
Broad substrate specificity ATP-binding cassette transporter ABCG2 (ABCG2)	OTW8V2V1	ABCG2_HUMAN	Decreases Activity	[28]
p21 protein (HRAS)	OTFYE6AJ	P78460_HUMAN	Increases ADR	[29]

References

• [1] ClinicalTrials.gov (NCT01765569) A Pharmacokinetics Study to Investigate the Effect of Vemurafenib on Digoxin in Patients With BRAFV600 Mutation-Positive Metastatic Melanoma
• [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: 5893).
• [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: 4726).
• [4] Digoxin FDA Label
• [5] PLX4032 Mediated Melanoma Associated Antigen Potentiation in Patient Derived Primary Melanoma Cells. J Cancer. 2015 Oct 29;6(12):1320-30. doi: 10.7150/jca.11126. eCollection 2015.
• [6] Actin remodeling confers BRAF inhibitor resistance to melanoma cells through YAP/TAZ activation. EMBO J. 2016 Mar 1;35(5):462-78. doi: 10.15252/embj.201592081. Epub 2015 Dec 14.
• [7] Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services. 2015
• [8] Differential effects of the oncogenic BRAF inhibitor PLX4032 (vemurafenib) and its progenitor PLX4720 on ABCB1 function. J Pharm Pharm Sci. 2014;17(1):154-68.
• [9] Contribution of OATP1B1 and OATP1B3 to the disposition of sorafenib and sorafenib-glucuronide. Clin Cancer Res. 2013 Mar 15;19(6):1458-66.
• [10] Vemurafenib for the treatment of melanoma. Expert Opin Pharmacother. 2012 Dec;13(17):2533-43.
• [11] Perturbation biology nominates upstream-downstream drug combinations in RAF inhibitor resistant melanoma cells. Elife. 2015 Aug 18;4:e04640. doi: 10.7554/eLife.04640.
• [12] Overcoming melanoma resistance to vemurafenib by targeting CCL2-induced miR-34a, miR-100 and miR-125b. Oncotarget. 2016 Jan 26;7(4):4428-41. doi: 10.18632/oncotarget.6599.
• [13] Melanoma Expressed-CD70 Is Regulated by RhoA and MAPK Pathways without Affecting Vemurafenib Treatment Activity. PLoS One. 2016 Feb 1;11(2):e0148095. doi: 10.1371/journal.pone.0148095. eCollection 2016.
• [14] Cell-based and cytokine-directed chemical screen to identify potential anti-multiple myeloma agents. Leuk Res. 2010 Jul;34(7):917-24. doi: 10.1016/j.leukres.2009.12.002. Epub 2010 Feb 8.
• [15] Fab antibody fragments: some applications in clinical toxicology. Drug Saf. 2004;27(14):1115-33.
• [16] 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. (Target id: 1227).
• [17] MDR1 function is sensitive to the phosphorylation state of myosin regulatory light chain. Biochem Biophys Res Commun. 2010 Jul 16;398(1):7-12.
• [18] MDR3 P-glycoprotein, a phosphatidylcholine translocase, transports several cytotoxic drugs and directly interacts with drugs as judged by interference with nucleotide trapping. J Biol Chem. 2000 Aug 4;275(31):23530-9.
• [19] Organic anion-transporting polypeptide B (OATP-B) and its functional comparison with three other OATPs of human liver. Gastroenterology. 2001 Feb;120(2):525-33.
• [20] Drug Interactions in Infectious Diseases.
• [21] Functional complementation between a novel mammalian polygenic transport complex and an evolutionarily ancient organic solute transporter, OSTalpha-OSTbeta. J Biol Chem. 2003 Jul 25;278(30):27473-82.
• [22] Isolation and characterization of a digoxin transporter and its rat homologue expressed in the kidney. Proc Natl Acad Sci U S A. 2004 Mar 9;101(10):3569-74.
• [23] Omeprazole-associated digoxin toxicity. South Med J. 2007 Apr;100(4):400-2.
• [24] Mechanistic insight into digoxin inactivation by Eggerthella lenta augments our understanding of its pharmacokinetics. Gut Microbes. 2014 Mar-Apr;5(2):233-8.
• [25] Digoxin and ouabain induce P-glycoprotein by activating calmodulin kinase II and hypoxia-inducible factor-1alpha in human colon cancer cells. Toxicol Appl Pharmacol. 2009 Nov 1;240(3):385-92. doi: 10.1016/j.taap.2009.07.026. Epub 2009 Jul 30.
• [26] Profiling the immunotoxicity of chemicals based on in vitro evaluation by a combination of the Multi-ImmunoTox assay and the IL-8 Luc assay. Arch Toxicol. 2018 Jun;92(6):2043-2054. doi: 10.1007/s00204-018-2199-7. Epub 2018 Mar 29.
• [27] Chronic digoxin toxicity and significantly elevated BNP levels in the presence of mild heart failure. Am J Emerg Med. 2005 Jul;23(4):561-2. doi: 10.1016/j.ajem.2004.10.009.
• [28] Human breast cancer resistance protein: interactions with steroid drugs, hormones, the dietary carcinogen 2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine, and transport of cimetidine. J Pharmacol Exp Ther. 2005 Jan;312(1):144-52. doi: 10.1124/jpet.104.073916. Epub 2004 Sep 13.
• [29] ADReCS-Target: target profiles for aiding drug safety research and application. Nucleic Acids Res. 2018 Jan 4;46(D1):D911-D917. doi: 10.1093/nar/gkx899.