Compositions and methods of administering paclitaxel with other drugs using medical devices
Systems and compositions comprising paclitaxel and a second drug, such as rapamycin, analogs, derivatives, salts and esters thereof are disclosed, as well as methods of delivery wherein the drugs have effects that complement each other. Medical devices comprising supporting structures capable of including or supporting a pharmaceutically acceptable carrier or excipient, which carrier or excipient can contain one or more therapeutic agents or substances, with the carrier preferably including a coating on the surface thereof, and the coating including the therapeutic substances, such as, for example, drugs. Supporting structures for the medical devices that are suitable for use in this invention include coronary stents, peripheral stents, catheters, arterio-venous grafts, by-pass grafts, and drug delivery balloons used in the vasculature. These compositions and systems can be used in combination with other drugs, including anti-proliferative agents, anti-platelet agents, anti-inflammatory agents, anti-thrombotic agents, cytotoxic drugs, agents that inhibit cytokine or chemokine binding, cell de-differentiation inhibitors, anti-lipaedemic agents, matrix metalloproteinase inhibitors, cytostatic drugs, or combinations of these and other drugs.
1. A drug delivery medical device, comprising:
a medical device comprising a pharmaceutically acceptable carrier or excipient; and
a taxane or its derivatives, prodrugs, or salts and rapamycin or its derivatives, prodrugs, or salts associated with the medical device;
wherein the ratio, r, by weight of the taxane or its derivatives, prodrugs, or salts to rapamycin or its derivatives, prodrugs, or salts is 7:10≧r≧0.01:10; and
wherein neointimal hyperplasia is reduced when the medical device is implanted in a lumen of a blood vessel of a subject when compared to a control system.
2. The drug delivery medical device according to claim 1 , wherein neointimal hyperplasia is reduced ≧10% when compared to the control system.
3. The drug delivery medical device according to claim 1 , wherein neointimal hyperplasia is reduced ≧15% when compared to the control system.
4. The drug delivery medical device according to claim 1 , wherein neointimal hyperplasia is reduced ≧20% when compared to the control system.
5. The drug delivery medical device according to claim 2 , 3 , or 4 , wherein neointimal hyperplasia is measured by at least one technique selected from the group consisting of neointimal area measurements, neointimal thickness measurements and percent area stenosis measurements.
6. The drug delivery medical device according to claim 1 , wherein the subject is a human being.
7. The drug delivery medical device according to claim 1 , wherein the taxane is paclitaxel.
8. The drug delivery medical device according to claim 1 , wherein r=1:10.
9. The drug delivery medical device according to claim 1 , wherein the ratio, r, exerts an additive effect.
10. The drug delivery medical device according to claim 9 , wherein r=1:10.
11. The drug delivery medical device according to claim 1 , wherein the medical device comprises a stent.
12. A medical device for providing controlled release delivery of drugs for treating or inhibiting neointimal hyperplasia in a blood vessel, comprising:
a taxane or salts, prodrugs, or derivatives thereof; and rapamycin, or salts, prodrugs, or derivatives thereof;
wherein the taxane or its salts, prodrugs, or derivatives complements the activity of the rapamycin or its salts, prodrugs, or derivatives, and the rapamycin or its salts, prodrugs, or derivatives complements the activity of the taxane or its salts, prodrugs, or derivatives; and
wherein the ratio, r, of the taxane or its salts, prodrugs, or derivatives to the rapamycin or its salts, prodrugs, or derivatives by weight is 7:10≧r≧0.01:10.
13. The medical device according to claim 12 , with the proviso that the rapamycin analog is not zotarolimus.
14. The medical device according to claim 12 , wherein the medical device is a stent.
15. The medical device according to claim 14 , wherein the stent further comprises a coating on a surface.
16. The medical device according to claim 15 , wherein the coating comprises a polymer.
17. The medical device according to claim 16 , wherein the polymer comprises a phosphorylcholine polymer.
18. The medical device according to claim 16 , wherein the polymer is selected from the group consisting of fluoropolymers, polyacrylates, silicones, resins, nylons, and poly(amides).
19. The medical device according to claim 15 , wherein the taxane or its salts, prodrugs, or derivatives and the rapamycin or its salts, prodrugs, or derivatives are associated with the coating.
20. The medical device according to claim 12 , the ratio, r, exerts an additive effect.
21. The system according to claim 12 , wherein r=1:10.