Multilayer thin film drug delivery device and methods of making and using the same

Patent metadata

Field	Value
Publication number	US-10864158-B2
Application number	US-201214110549-A
Country	US
Kind code	B2
Filing date	Apr 12, 2012
Priority date	Apr 14, 2011
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

Multilayer thin film devices that include a bioactive agent for elution to the surrounding tissue upon administration to a subject are provided. The multilayer thin film devices are useful as medical devices, such as ocular devices. Also provided are methods and kits for localized delivery of a bioactive agent to a tissue of a subject, and methods of preparing the subject devices. The multilayer thin film medical device includes a first layer, a bioactive agent and a second layer. The first and the second layers may be porous or non-porous. The devices have a furled structure, suitable for administration to a subject.

First claim

What is claimed is:

1. A multilayer thin film medical device, comprising:
a first layer comprising a polymer, wherein the polymer is selected from the group consisting of poly(ε-caprolactone) (PCL), polylactide (PLA), polyglycolide (PGA), poly(DL-lactide-co-glycolide) (PLGA), and poly(DL-lactide-co-ϑ-caprolactone) (DLPLCL), wherein the first layer does not include a water soluble polymer, wherein the first layer comprises a first surface and a second surface opposite the first surface;
a layer of lyophilized bioactive agent in absence of a polymer; and
a second layer comprising a polymer, wherein the polymer is selected from the group consisting of poly(ε-caprolactone) (PCL), polylactide (PLA), polyglycolide (PGA), poly(DL-lactide-co-glycolide) (PLGA), and poly(DL-lactide-co-ϑ-caprolactone) (DLPLCL), wherein the second layer does not include a water soluble polymer, wherein the second layer comprises a first surface and a second surface opposite the first surface;
wherein the bioactive agent is positioned only between the second surface of the first layer and the first surface of the second layer,
wherein the second surface of the first layer is in contact with the first surface of the second layer at the periphery of the multilayer thin film medical device and wherein the contact extends from the periphery of the device to a periphery of the location at which the bioactive agent is positioned thereby sealing the bioactive agent inside the multilayer thin film medical device, wherein the contact does not extend to regions in interior of the device,
wherein the bioactive agent is not positioned between the first and the second layers at the periphery of the multilayer thin film medical device,
wherein the device has an area between 1 mm 2 and 36 mm 2 ,
wherein the device has a thickness between 10 μm and 500 μm, and
wherein the device provides a zero order release of the bioactive agent over at least 10 days following administration.

2. The multilayer thin film medical device of claim 1 , wherein the first layer has a % porosity between about 20% and about 0.01%.

3. The multilayer thin film medical device of claim 1 , wherein the first layer has an average pore size of 30 μm or less.

4. The multilayer thin film medical device of claim 1 , wherein the device is circular and has a diameter between 2 mm and 50 mm.

5. The multilayer thin film medical device of claim 1 , wherein the second layer is biodegradable.

6. The multilayer thin film medical device of claim 1 , wherein the second layer comprises PCL.

7. The multilayer thin film medical device of claim 1 , wherein the bioactive agent is disposed in a plurality of reservoirs located across one surface of the second layer.

8. The multilayer thin film medical device of claim 1 , wherein the second layer comprises a plurality of reservoirs located across one surface of the second layer, wherein a first reservoir of the plurality of reservoirs comprises the bioactive agent and a second reservoir of the plurality of reservoirs comprises another bioactive agent.

9. The multilayer thin film medical device of claim 1 , wherein the bioactive agent is a protein therapeutic, a small molecule drug, a large molecule drug or an aptamer.

10. The multilayer thin film medical device of claim 1 , wherein the bioactive agent is a protein therapeutic selected from ranibizumab, bevacizumab, trastuzumab, rituximab, gentuzumab ozogamicin and cetuximab.

11. The multilayer thin film medical device of claim 1 , wherein the bioactive agent is a small molecule therapeutic selected from steroids, rapamycin, or prostaglandin.

12. The multilayer thin film medical device of claim 1 , wherein the first and second layers are formed from a single film folded over the bioactive agent and sealed at the periphery.

13. The multilayer thin film medical device of claim 1 , wherein the polymer has a molecular weight of 80 KDa and does not start to degrade until after 1 year after in vivo placement.

14. The multilayer thin film medical device of claim 1 , wherein the polymer has a molecular weight of 15 kDa-20 kDa and does not start to degrade until after 4 months after in vivo placement.

15. The multilayer thin film medical device of claim 1 , wherein the first layer is a non-porous layer and the second layer is a nanoporous layer comprising pores 7 nm-50 nm in diameter, and wherein the device has a diameter of 1 mm-2 mm.

16. The multilayer thin film medical device of claim 1 , wherein the first layer is a non-porous layer and the second layer is a non-porous layer and wherein the bioactive agent is a small molecule therapeutic.

17. The multilayer thin film medical device of claim 1 , wherein the device comprises a furled structure or an unfurled structure.

18. The multilayer thin film medical device of claim 17 , wherein the furled structure is substantially cylindrical or frusto-conical.

19. The multilayer thin film medical device of claim 17 , wherein the unfurled structure comprises a substantially circular peripheral edge.

20. The multilayer thin film medical device of claim 1 , further comprising a third nanostructured porous layer positioned between the first layer and the bioactive agent.

21. The multilayer thin film medical device of claim 20 , wherein the second layer comprises a plurality of reservoirs located across one surface of the second layer, wherein a first reservoir of the plurality of reservoirs comprises the bioactive agent and a second reservoir of the plurality of reservoirs comprises another bioactive agent.

22. The multilayer thin film medical device of claim 1 , wherein the first layer and/or the second layer comprises engineered pores.

23. The multilayer thin film medical device of claim 22 , wherein the engineered pores are nanopores.

24. The multilayer thin film medical device of claim 22 , wherein the engineered pores are micropores.

25. The multilayer thin film medical device of claim 1 , wherein the first layer further comprises a high molecular weight polymer having a molecular weight of at least 80 kDa and a low molecular weight polymer having a molecular weight of 20 kDa or less.

26. The multilayer thin film medical device of claim 25 , wherein ratio by mass of the low molecular weight polymer to the high molecular weight polymer is 3:2.

27. The multilayer thin film medical device of claim 25 , wherein the ratio by mass of the low molecular weight polymer to the high molecular weight polymer is 2:3.

28. The multilayer thin film medical device of claim 1 , wherein the first layer is a non-porous layer and the second layer is a microporous layer comprising pores 1-10 μm in diameter, and wherein the device has a diameter of 1 mm-2 mm.

29. The multilayer thin film medical device of claim 28 , wherein the first layer comprises nanopores, wherein the device comprises a third polymer layer comprising micropores wherein the third layer is in contact with the first surface of the first layer and serves as a structural support for the first layer.

30. The multilayer thin film medical device of claim 29 , wherein the second layer is a nonporous layer and wherein the nanopores are 7 nm-50 nm in diameter and the micropores are 1 μm-10 μm in diameter.

31. The multilayer thin film medical device of claim 1 , wherein the first layer comprises nanopores, wherein the devi

Assignees

• Desai Tejal A
• Steedman Mark Rory
• Bhisitkul Robert
• Bernards Daniel A
• Lance Kevin D
• Univ California

Inventors

• Desai Tejal A
• Steedman Mark Rory
• Bhisitkul Robert
• Bernards Daniel A
• Lance Kevin D

Classifications

• A61F9/0017 Primary

  implantable in, or in contact with, the eye, e.g. ocular inserts · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title

• A61K31/436

  the heterocyclic ring system containing a six-membered ring having oxygen as a ring hetero atom, e.g. rapamycin · CPC title

• C08J2367/04

  Polyesters derived from hydroxy carboxylic acids, e.g. lactones (C08J2367/06 takes precedence) · CPC title