Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
Embodiments of the invention provide swallowable devices, preparations and methods for delivering drugs and other therapeutic agents within the GI tract. Many embodiments provide a swallowable device for delivering the agents. Particular embodiments provide a swallowable device such as a capsule for delivering drugs into the intestinal wall or other GI lumen. Embodiments also provide various drug preparations that are configured to be contained within the capsule, advanced from the capsule into the intestinal wall and degrade to release the drug into the bloodstream to produce a therapeutic effect. The preparation can be operably coupled to delivery means having a first configuration where the preparation is contained in the capsule and a second configuration where the preparation is advanced out of the capsule into the intestinal wall. Embodiments of the invention are particularly useful for the delivery of drugs which are poorly absorbed, tolerated and/or degraded within the GI tract.
1. A method for delivering PTH or PTH analogue to a patient, the method comprising:
providing a solid PTH or PTH analogue dosage shaped as a tissue penetrating member; and
penetrating the solid dosage PTH or PTH analogue into an intestinal wall after oral ingestion, wherein PTH or PTH analogue is released into the blood stream from the solid dosage PTH or PTH analogue in the intestinal wall by degradation of the tissue penetrating member,
wherein penetrating the solid dosage PTH or PTH analogue into the intestinal wall comprises operably coupling the solid dosage PTH or PTH analogue to a delivery means having a first configuration wherein the solid dosage PTH or PTH analogue is within the capsule and a second configuration wherein the solid dosage PTH or PTH analogue is advanced out of the capsule and into the intestinal wall,
wherein the solid dosage PTH or PTH analogue comprise a biodegradable material which degrades within the intestinal wall to release PTH or PTH analogue into the blood stream, and
wherein the solid dosage PTH or PTH analogue produces a long-term release of PTH or PTH analogue.
2. The method of claim 1 , wherein the tissue penetrating member is inserted into a wall of the small intestine.
3. The method of claim 1 , wherein the tissue penetrating member is orally delivered to the intestine in a swallowable capsule.
4. The method of claim 1 , wherein the delivery means comprises an expandable balloon.
5. The method of claim 4 , wherein penetrating the solid dosage PTH or PTH analogue into the intestinal wall comprises expanding the expandable balloon from the first to the second configuration.
6. The method of claim 1 , wherein the biodegradable material comprises PGLA, a sugar or maltose.
7. The method of claim 1 , wherein the solid dosage PTH or PTH analogue comprises at least one pharmaceutical excipient.
8. The method of claim 7 , wherein the at least one pharmaceutical excipient comprises at least one of a binder, a preservative or a disintegrant.
9. The method of claim 1 , wherein a weight percent of PTH or PTH analogue in the solid dosage PTH or PTH analogue comprises between about 1 to 2%.
10. The method of claim 1 , wherein a dose of PTH or PTH analogue in the preparation is in a range from about 10 to 30 μg.
11. The method of claim 1 , wherein the PTH analogue is teriparatide.
12. The method of claim 11 , wherein a dose of teriparatide in the preparation is in a range from about 0.1 to 10 μg.
13. The method of claim 1 , further comprising retaining the solid dosage PTH or PTH analogue within the intestinal wall after insertion.
14. The method of claim 13 , wherein retaining comprises anchoring at least one of a barb or an inverse taper shape of the solid dosage PTH or PTH analogue in the intestinal tissue.
15. The method of claim 1 , wherein penetrating the solid dosage PTH or PTH analogue comprises applying a force to the solid dosage PTH or PTH analogue, wherein the solid dosage PTH or PTH analogue has sufficient stiffness to be advanced completely into the intestinal wall by such application of force.
16. The method of claim 1 , wherein the long-term release of PTH or PTH analogue is about 12 hours.
17. The method of claim 1 , wherein oral ingestion comprises swallowing a capsule containing the solid dosage PTH or PTH analogue.
18. The method of claim 1 , wherein the tissue penetrating member has a pointed tip.