Sulfoalkyl ether cyclodextrin compositions
SAE-CD compositions are provided, along with methods of making and using the same. The SAE-CD compositions comprise a sulfoalkyl ether cyclodextrin having an absorption of less than 0.5 A.U. due to a drug-degrading agent, as determined by UV/vis spectrophotometry at a wavelength of 245 nm to 270 nm for an aqueous solution containing 300 mg of the SAE-CD composition per mL of solution in a cell having a 1 cm path length.
1. A sulfoalkyl ether cyclodextrin (SAE-CD) composition comprising a sulfoalkyl ether cyclodextrin having an average degree of substitution of 4.5 to 7.5, wherein the SAE-CD composition does not contain phosphate in an amount of 200 ppm or more and does not contain underivatized cyclodextrin in an amount of 0.5% wt. or more, and wherein the SAE-CD composition has an absorption of less than 0.5 A.U. as determined by UV/vis spectrophotometry at a wavelength of 245 nm to 270 nm for an aqueous solution containing 300 mg of the SAE-CD composition per mL of solution in a cell having a 1 cm path length, wherein the amounts of the phosphate and the underivatized cyclodextrin are with respect to the SAE-CD composition; and an active agent, wherein the active agent is an antiviral agent or an antifungal agent; wherein the composition is a liquid solution suitable for administration by injection, a reconstitutable solid, or an oral dosage form selected from tablet, capsule, and oral suspension.
2. The SAE-CD composition of claim 1 , wherein the active agent is an antiviral agent.
3. The SAE-CD composition of claim 1 , wherein the active agent is an antifungal agent selected from posaconazole or voriconazole.
4. The SAE-CD composition of claim 3 , wherein the antifungal agent is posaconazole.
5. The SAE-CD composition of claim 3 , wherein the antifungal agent is voriconazole.
6. The SAE-CD composition of claim 1 , wherein the SAE-CD is a cyclodextrin of Formula 1:
wherein p is 4, 5 or 6, and R 1 is independently selected at each occurrence from —OH or —O—(C 2 -C 6 alkylene)-SO 3 − -T, wherein T is independently selected at each occurrence from pharmaceutically acceptable cations, provided that at least one R 1 is —OH and at least one R 1 is O—(C 2 -C 6 alkylene)-SO 3 − -T.
7. The SAE-CD composition of claim 6 , wherein R 1 is independently selected at each occurrence from —OH or —O—(C 4 alkylene)-SO 3 − -T.
8. The SAE-CD composition of claim 7 , wherein -T is Na + at each occurrence.
9. The SAE-CD composition of claim 6 , wherein the pharmaceutically acceptable cation is H + , an alkali metal cation, an alkaline earth metal cation, an ammonium ion, and an amine cation.
10. The SAE-CD composition of claim 6 , wherein the pharmaceutically acceptable cation is an alkali metal cation selected from the group consisting of: Li + , Na + , and K + .
11. The SAE-CD composition of claim 6 , wherein the pharmaceutically acceptable cation is an alkaline earth metal cation selected from the group consisting of: Ca +2 and Mg +2 .
12. The SAE-CD composition of claim 6 , wherein the pharmaceutically acceptable cation is an amine cation selected from the group consisting of: (C1-C6)-alkylamine, piperidine, pyrazine, (C1-C6)-alkanolamine, ethylenediamine, and (C4-C8)-cyclo alkanolamine.
13. The SAE-CD composition of claim 1 , wherein the average degree of substitution of the sulfoalkyl ether cyclodextrin is 6 to 7.1.
14. The oral dosage form of claim 1 , wherein the dosage form is a tablet, capsule, or oral suspension.
15. A reconstitutable solid dosage form suitable for injection comprising the SAE-CD composition of claim 3 .