Ingestible device for delivery of therapeutic agent to the gastrointestinal tract
Ingestible devices can directly deliver therapeutic agents to desired tissue(s) of the GI tract of a subject, such as the submucosa, the mucosa, and/or the mucus layer of the GI tract, and methods of using the same. The ingestible devices can deliver therapeutic agents in a safe, effective, and reliable manner. The disclosure also provides pharmaceutical compositions for use in methods of treating a disease or condition in a subject in need thereof.
1 . An ingestible device, comprising:
a housing configured to store a dispensable liquid having a viscosity of from about 1 cP to about 50 cP;
at least one nozzle in the housing;
a drive force generator in the housing; and
a piston in the housing between the drive force generator and the at least one nozzle, the drive force generator when actuated, pressurizing the dispensable liquid to a peak fluid pressure of about 100 psig to about 2056 psig, to create a jet of the dispensable liquid through the at least one nozzle.
2 . The ingestible device of claim 1 wherein the dispensable liquid has a viscosity of from about 1 cP to about 20 cP.
3 . The ingestible device of claim 1 wherein the at least one nozzle has an opening diameter of 0.1 to 0.5 mm.
4 . The ingestible device of claim 1 wherein the drive force generator comprises a compressed gas, which, when released, exerts force on the piston.
5 . The ingestible device of claim 4 further including a restraining mechanism having a first state in which the restraining mechanism prevents the liquid from being delivered out of the ingestible device; and a second state in which the restraining mechanism does not prevent the liquid from being delivered out of the ingestible device.
6 . The ingestible device of claim 5 wherein the restraining mechanism comprises a material selected from the group consisting of an enteric material, a degradable material, an erodible material and a dissolvable material.
7 . The ingestible device of claim 4 wherein the compressed gas has an initial gas pressure in a gas container of about 500 to about 1200 psig.
8 . The ingestible device of claim 1 further comprising a nozzle cover movable from a first position wherein the nozzle cover covers the at least one nozzle, to a second position wherein the nozzle cover does not cover the at least one nozzle, and wherein the drive force generator, when actuated, moves the nozzle cover from the first position to the second position.
9 . The ingestible device of claim 1 further comprising a second piston configured so that, when the piston applies force on the dispensable liquid, the dispensable liquid applies a force on the second piston to slide the second piston to expose the at least one nozzle.
10 . The ingestible device of claim 1 wherein the jet has a peak jet power of about 1 to about 6.6 Watts.
11 . The ingestible device of claim 1 wherein the jet has a peak jet velocity of 35 to 112 m/s.
12 . The ingestible device of claim 1 wherein the jet has a peak jet force of 18 to 260 mN.
13 . The ingestible device of claim 1 wherein the drive force generator comprises a gas container holding compressed gas and a spring acting on a piercing element, the piercing element restrained by a restraining mechanism, wherein when the ingestible device is actuated, the piercing element pierces the gas container, allowing the compressed gas to flow out of the gas container and moves the piston.
14 . The ingestible device of claim 4 wherein the piston slides against interior cylindrical walls of the housing when ingestible device is actuated.
15 . An ingestible device, comprising:
a housing configured to store a dispensable liquid;
at least one nozzle in the housing;
a drive force generator in the housing, the drive force generator, when actuated, pressurizes the dispensable liquid to create a jet of the dispensable liquid through the at least one nozzle; and
a cover on the housing, the cover movable from a first position wherein the cover at least partially covers the at least one nozzle, to a second position wherein the cover does not cover the at least one nozzle.
16 . The ingestible device of claim 15 wherein the cover is mechanically linked to the drive force generator, with the cover moving from the first position to the second position when the drive force generator is actuated.
17 . The ingestible device of claim 15 wherein the jet has a peak fluid pressure of about 100 psig to about 2056 psig and the dispensable liquid has a viscosity of from about 1 cP to about 50 cP.
18 . The ingestible device of claim 15 wherein the jet has a peak jet power of about 1 to about 6.6 Watts.