Posaconazole is a broad-spectrum, second generation, triazole compound with antifungal activity.

Posaconazole has potent trypanocidal activity. Amiodarone acts synergistically with Posaconazole. Posaconazole also affects and disrupts Ca²⁺ homeostasis in T. cruzi. Posaconazole blocks the biosynthesis of ergosterol, which is essential for parasite survival. Posaconazole has a clear, dose-dependent effect on proliferation of the epimastigote (extracellular) stages, with a minimal inhibitory concentration of 20 nM and an IC₅₀ of 14 nM. Against the clinically relevant intracellular amastigote form of the parasite, Posaconazole is even more potent. Posaconazole has the minimal inhibitory concentration and IC₅₀ values of 3 nM and 0.25 nM^[1]. Posaconazole is active against isolates of Candida and Aspergillus spp. that exhibit resistance to Fluconazole, Voriconazole, and Amphotericin B and is much more active than the other triazoles against zygomycetes^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Treatment of infected animals with amiodarone alone reduces parasitemia, increases survival 60 days pi (0% for untreated controls vs 40% for amiodarone-treated animals) and, when given in combination with Posaconazole, delays the development of parasitemia^[1].
Coadministration of Posaconazole and Boost Plus increases drug exposure compared to the administration of Posaconazole alone in the fasted state. Food, particularly meals high in fat content, significantly increases Posaconazole bioavailability. Systemic exposure to Posaconazole increases 4- and 2.6-fold when it is consumed with a high-fat and nonfat meal, respectively^[3].
Posaconazole and Amiodarone may constitute an effective anti-T. cruzi therapy with low side effect^[4].
At twice-daily doses of ≥ 15 mg/kg of body weight, Posaconazole prolongs the survival of the mice and reduces tissue burden^[5].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

700.78

C₃₇H₄₂F₂N₈O₄

171228-49-2

Solid

White to off-white

FC1=CC=C([C@@]2(CN3C=NC=N3)C[C@H](COC4=CC=C(N5CCN(C6=CC=C(N7C=NN([C@@H](CC)[C@H](C)O)C7=O)C=C6)CC5)C=C4)CO2)C(F)=C1

Room temperature in continental US; may vary elsewhere.

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

• [1]. Benaim G, et al. Amiodarone has intrinsic anti-Trypanosoma cruzi activity and acts synergistically with posaconazole. J Med Chem. 2006 Feb 9;49(3):892-9.  [Content Brief]

  [2]. Sabatelli F, et al. In vitro activities of posaconazole, fluconazole, itraconazole, voriconazole, and amphotericin B against a large collection of clinically important molds and yeasts. Antimicrob Agents Chemother. 2006 Jun;50(6):2009-15.  [Content Brief]

  [3]. Sansone-Parsons A, et al. Effect of a nutritional supplement on posaconazole pharmacokinetics following oral administration to healthy volunteers. Antimicrob Agents Chemother. 2006 May;50(5):1881-3.  [Content Brief]

  [4]. Veiga-Santos P, et al. Effects of amiodarone and posaconazole on the growth and ultrastructure of Trypanosoma cruzi. Int J Antimicrob Agents. 2012 Jul;40(1):61-71.  [Content Brief]

  [5]. Sun QN, et al. In vivo activity of posaconazole against Mucor spp. in an immunosuppressed-mouse model. Antimicrob Agents Chemother. 2002 Jul;46(7):2310-2.  [Content Brief]