Details of the Drug Combination

General Information of Drug Combination (ID: DCYIBM8)

• Drug Combination Name: Voriconazole + Natamycin
• Indication: Corneal Ulcer; Status: Phase 3 [1]
• Component Drugs:
  Voriconazole (DMAOL2S): Small molecular drug
  Natamycin (DMFEHXD): Small molecular drug

Molecular Interaction Atlas of This Drug Combination

Indication(s) of Voriconazole

Disease Entry	ICD 11	Status	REF
Aspergillosis	1F20	Approved	[2]
Candidiasis	1F23	Approved	[2]
Fusariosis	N.A.	Approved	[2]
Invasive aspergillosis	1F20.0	Approved	[3]
Invasive candidiasis	1F23	Approved	[2]
Neuroaspergillosis	N.A.	Approved	[2]
Candidemia	1F23.3Y	Investigative	[2]
Esophageal candidiasis	N.A.	Investigative	[2]

Voriconazole Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Candida Cytochrome P450 51 (Candi ERG11)	TTTSOUD	CP51_CANAL	Modulator	[6]

Voriconazole Interacts with 4 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[7]
Cytochrome P450 2C9 (CYP2C9)	DE5IED8	CP2C9_HUMAN	Metabolism	[8]
Mephenytoin 4-hydroxylase (CYP2C19)	DEGTFWK	CP2CJ_HUMAN	Metabolism	[8]
Prostaglandin G/H synthase 1 (COX-1)	DE073H6	PGH1_HUMAN	Metabolism	[9]

Voriconazole Interacts with 7 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	OTQGYY83	CP3A4_HUMAN	Decreases Activity	[10]
Cytochrome P450 2C9 (CYP2C9)	OTGLBN29	CP2C9_HUMAN	Decreases Activity	[10]
Cytochrome P450 2C19 (CYP2C19)	OTFMJYYE	CP2CJ_HUMAN	Decreases Activity	[10]
Carbonic anhydrase 1 (CA1)	OTNFBVVQ	CAH1_HUMAN	Decreases Activity	[11]
Carbonic anhydrase 2 (CA2)	OTJRMUAG	CAH2_HUMAN	Decreases Activity	[11]
Cytochrome P450 1B1 (CYP1B1)	OTYXFLSD	CP1B1_HUMAN	Decreases Activity	[12]
Lanosterol 14-alpha demethylase (CYP51A1)	OTAYHG9C	CP51A_HUMAN	Decreases Response To Substance	[13]

Indication(s) of Natamycin

Disease Entry	ICD 11	Status	REF
Conjunctivitis	9A60	Approved	[4]
Fungal keratitis	N.A.	Approved	[5]

Natamycin Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Fungal Cell membrane (Fung CM)	TTAH0B3	NOUNIPROTAC	Binder	[14]

References

• [1] ClinicalTrials.gov (NCT02731638) Mycotic Antimicrobial Localized Injection for Treatment of Corneal Ulcers
• [2] Voriconazole FDA Label
• [3] Disk diffusion test and E-test with enriched Mueller-Hinton agar for determining susceptibility of Candida species to voriconazole and fluconazole. J Microbiol Immunol Infect. 2009 Apr;42(2):148-53.
• [4] FDA Approved Drug Products from FDA Official Website. 2009. Application Number: (NDA) 050514.
• [5] Natamycin FDA Label
• [6] Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services.
• [7] Roles of CYP3A4 and CYP2C19 in methyl hydroxylated and N-oxidized metabolite formation from voriconazole, a new anti-fungal agent, in human liver microsomes. Biochem Pharmacol. 2007 Jun 15;73(12):2020-6.
• [8] Effect of voriconazole on the pharmacokinetics of diclofenac. Fundam Clin Pharmacol. 2007 Dec;21(6):651-6.
• [9] 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.
• [10] 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.
• [11] Inhibition profiles of Voriconazole against acetylcholinesterase, -glycosidase, and human carbonic anhydrase I and II isoenzymes. J Biochem Mol Toxicol. 2019 Oct;33(10):e22385. doi: 10.1002/jbt.22385. Epub 2019 Sep 3.
• [12] Association of CYP1A1 and CYP1B1 inhibition in in vitro assays with drug-induced liver injury. J Toxicol Sci. 2021;46(4):167-176. doi: 10.2131/jts.46.167.
• [13] 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.
• [14] Natamycin blocks fungal growth by binding specifically to ergosterol without permeabilizing the membrane. J Biol Chem. 2008 Mar 7;283(10):6393-401.