Coating formulations for scoring or cutting balloon catheters
View Patent ↗The present invention is related to scoring or cutting balloon catheters carrying at least on a portion of their surface at least one drug or drug preparation and at least one lipophilic antioxidant at a ratio of 3-100% by weight of the at least one lipophilic antioxidant in relation to 100% by weight of the drug, wherein a combination of the at least one drug being a limus drug and the at least one lipophilic antioxidant being butylated hydroxytoluene is excluded.
1. A scoring or cutting balloon catheter carrying at least on a portion of a surface of the scoring or cutting balloon catheter a coating composition comprising at least one drug or drug preparation and at least one lipophilic antioxidant that will protect the drug from premature loss during delivery to the angioplasty site and that is 3-100% by weight of the at least one drug or drug preparation, wherein the at least one drug or drug preparation is selected from the group consisting of a Limus drug, a cell proliferation inhibitor, and an inhibitor of neovascularization, the at least one lipophilic antioxidant is selected from the group consisting of butylated hydroxytoluene, butylated hydroxyanisole, nordihydroguaiaretic acid, ascorbyl palmitate, and propyl gallate, and wherein a combination of a Limus drug with butylated hydroxytoluene as the lipophilic antioxidant is excluded.
2. The scoring or cutting balloon catheter according to claim 1 wherein the at least one lipophilic antioxidant is contained at a ratio of 5-100% by weight in relation to 100% by weight of the at least one drug or drug preparation.
3. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one drug or drug preparation is more lipophilic than the antioxidant.
4. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one drug or drug preparation is a Limus drug.
5. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one drug or drug preparation is a cell proliferation inhibitor.
6. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one drug or drug preparation is an inhibitor of neovascularization.
7. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one antioxidant load is up to 10 μg/mm 2 of coated catheter surface.
8. The scoring or cutting balloon catheter according to claim 1 , which has been coated with the at least one drug or drug preparation and the at least one lipophilic antioxidant both together or each is separately dissolved in tetrahydrofuran or a mixture of solvents containing more than 25% (v/v) tetrahydrofuran.
9. The scoring or cutting balloon catheter according to claim 1 , which has been coated with the at least one drug or drug preparation and the at least one lipophilic antioxidant both together or each is separately dissolved in acetone or a mixture of solvents containing more than 25% (v/v) acetone.
10. The scoring or cutting balloon catheter according to claim 1 wherein the at least one lipophilic antioxidant is contained at a ratio of 10-100% by weight in relation to 100% by weight of the at least one drug.
11. The scoring or cutting balloon catheter according to claim 1 wherein the at least one lipophilic antioxidant is contained at a ratio of 20-100% by weight in relation to 100% by weight of the at least one drug.
12. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one drug or drug preparation is a taxane.
13. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one drug or drug preparation is stable against oxidative decomposition and the at least one drug or drug preparation is selected from the group consisting of paclitaxel, protaxel, and docetaxel.
14. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one drug or drug preparation is stable against oxidative decomposition and the at least one drug or drug preparation is paclitaxel.
15. The scoring or cutting balloon catheter according to claim 14 , wherein the at least one lipophilic antioxidant is nordihydroguaiaretic acid.
16. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one lipophilic antioxidant is nordihydroguaiaretic acid.
17. The scoring or cutting balloon catheter according to claim 1 , wherein the coating composition is polymer-free.
18. The scoring or cutting balloon catheter according to claim 15 , wherein the coating composition is polymer-free.
19. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one lipophilic antioxidant is selected from the group consisting of butylated hydroxytoluene, butylated hydroxyanisole, nordihydroguaiaretic acid, and propyl gallate.
20. The scoring or cutting balloon catheter according to claim 1 , wherein the at least one lipophilic antioxidant is selected from the group consisting of nordihydroguaiaretic acid and propyl gallate.