Details of the Drug Combination

General Information of Drug Combination (ID: DCTCVPY)

• Drug Combination Name: Itraconazole + Relugolix
• Indication: Prostate Cancer; Status: Phase 1 [1]
• Component Drugs:
  Itraconazole (DMCR1MV): Small molecular drug
  Relugolix (DMK7IWL): Small molecular drug

Molecular Interaction Atlas of This Drug Combination

Indication(s) of Itraconazole

Disease Entry	ICD 11	Status	REF
Aspergillosis	1F20	Approved	[2]
Blastomycosis	1F22	Approved	[2]
Fungal infection	1F29-1F2F	Approved	[3]
Fusariosis	N.A.	Approved	[2]
Histoplasmosis	N.A.	Approved	[2]
Invasive candidiasis	1F23	Approved	[2]
Mycoses	1F2Z	Approved	[2]
Candidemia	1F23.3Y	Investigative	[2]
Esophageal candidiasis	N.A.	Investigative	[2]

Itraconazole Interacts with 2 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Hedgehog signaling pathway (HS pathway)	TT4LXBC	NOUNIPROTAC	Inhibitor	[6]
Candida Cytochrome P450 51 (Candi ERG11)	TTTSOUD	CP51_CANAL	Modulator	[7]

Itraconazole Interacts with 1 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
P-glycoprotein 1 (ABCB1)	DTUGYRD	MDR1_HUMAN	Substrate	[8]

Itraconazole Interacts with 2 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[9]
UDP-glucuronosyltransferase 1A1 (UGT1A1)	DEYGVN4	UD11_HUMAN	Metabolism	[10]

Itraconazole Interacts with 10 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	OTQGYY83	CP3A4_HUMAN	Decreases Expression	[11]
ATP-dependent translocase ABCB1 (ABCB1)	OTEJROBO	MDR1_HUMAN	Decreases Activity	[12]
1,25-dihydroxyvitamin D(3) 24-hydroxylase, mitochondrial (CYP24A1)	OTG2T749	CP24A_HUMAN	Decreases Activity	[13]
Cytochrome P450 1A1 (CYP1A1)	OTE4EFH8	CP1A1_HUMAN	Increases Expression	[14]
Nuclear receptor subfamily 1 group I member 2 (NR1I2)	OTC5U0N5	NR1I2_HUMAN	Increases Expression	[15]
Bile salt export pump (ABCB11)	OTRU7THO	ABCBB_HUMAN	Decreases Activity	[16]
Interleukin-4 (IL4)	OTOXBWAU	IL4_HUMAN	Decreases Expression	[17]
Interleukin-5 (IL5)	OTAFPSCO	IL5_HUMAN	Decreases Expression	[17]
11-beta-hydroxysteroid dehydrogenase type 2 (HSD11B2)	OTHF4H9U	DHI2_HUMAN	Decreases Activity	[18]
Lanosterol 14-alpha demethylase (CYP51A1)	OTAYHG9C	CP51A_HUMAN	Decreases Response To Substance	[19]

Indication(s) of Relugolix

Disease Entry	ICD 11	Status	REF
Prostate cancer	2C82.0	Approved	[4]
Endometriosis	GA10	Phase 3	[5]

Relugolix Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Gonadotropin-releasing hormone receptor (GNRHR)	TT8R70G	GNRHR_HUMAN	Antagonist	[4]

Relugolix Interacts with 1 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
P-glycoprotein 1 (ABCB1)	DTUGYRD	MDR1_HUMAN	Substrate	[20]

References

• [1] ClinicalTrials.gov (NCT05679388) A Study of Extending Relugolix Dosing Intervals Through Addition of Itraconazole or Ritonavir in Prostate Cancer Patients
• [2] Itraconazole FDA Label
• [3] FDA Approved Drug Products from FDA Official Website. 2009. Application Number: (ANDA) 076104.
• [4] Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health Human Services. 2020
• [5] Clinical pipeline report, company report or official report of the Pharmaceutical Research and Manufacturers of America (PhRMA)
• [6] Clinical pipeline report, company report or official report of the Pharmaceutical Research and Manufacturers of America (PhRMA)
• [7] Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services.
• [8] 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.
• [9] Effects of itraconazole and tandospirone on the pharmacokinetics of perospirone. Ther Drug Monit. 2006 Feb;28(1):73-5.
• [10] Investigation into UDP-glucuronosyltransferase (UGT) enzyme kinetics of imidazole- and triazole-containing antifungal drugs in human liver microsomes and recombinant UGT enzymes. Drug Metab Dispos. 2010 Jun;38(6):923-9.
• [11] Itraconazole cis-diastereoisomers activate aryl hydrocarbon receptor AhR and pregnane X receptor PXR and induce CYP1A1 in human cell lines and human hepatocytes. Toxicology. 2017 May 15;383:40-49.
• [12] Clinical pharmacokinetic monitoring of itraconazole is warranted in only a subset of patients. Ther Drug Monit. 2005 Jun;27(3):322-33. doi: 10.1097/01.ftd.0000150135.22645.ea.
• [13] The novel azole R126638 is a selective inhibitor of ergosterol synthesis in Candida albicans, Trichophyton spp., and Microsporum canis. Antimicrob Agents Chemother. 2004 Sep;48(9):3272-8.
• [14] Induction of cytochrome P450 1A1 by ketoconazole and itraconazole but not fluconazole in murine and human hepatoma cell lines. Toxicol Sci. 2007 May;97(1):32-43.
• [15] Azole antimycotics differentially affect rifampicin-induced pregnane X receptor-mediated CYP3A4 gene expression. Drug Metab Dispos. 2008 Feb;36(2):339-48.
• [16] Interference with bile salt export pump function is a susceptibility factor for human liver injury in drug development. Toxicol Sci. 2010 Dec; 118(2):485-500.
• [17] Anti-mycotics suppress interleukin-4 and interleukin-5 production in anti-CD3 plus anti-CD28-stimulated T cells from patients with atopic dermatitis. J Invest Dermatol. 2001 Dec;117(6):1635-46. doi: 10.1046/j.0022-202x.2001.01566.x.
• [18] Inhibition of 11-hydroxysteroid dehydrogenase 2 by the fungicides itraconazole and posaconazole. Biochem Pharmacol. 2017 Apr 15;130:93-103. doi: 10.1016/j.bcp.2017.01.010. Epub 2017 Jan 25.
• [19] Differential azole antifungal efficacies contrasted using a Saccharomyces cerevisiae strain humanized for sterol 14 alpha-demethylase at the homolo... Antimicrob Agents Chemother. 2008 Oct;52(10):3597-603.
• [20] KEGG: new perspectives on genomes, pathways, diseases and drugs. Nucleic Acids Res. 2017 Jan 4;45(D1):D353-D361. (dg:DG01665)