IP Library › Granted Patent US 12,397,141
Granted Patent B2
US 12,397,141 · App. 17/293,570 · Granted Aug 26, 2025

Thermally regulated transdermal drug delivery system

Inventors: Patrick H. Ruane (Dublin, CA); Jackie Joe Hancock (Berkeley, CA); Anubhav Arora (Hayward, CA)
Assignee: Morningside Venture Investments Limited
A61M37/00A61K31/465A61M2037/0007A61M2205/055A61M2205/3606A61M2205/368A61M2205/8206
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Quick Facts
Patent No.
US 12,397,141
App. No.
17/293,570
Granted
Aug 26, 2025
Kind
B2
Abstract

Described herein are drug and other active agent transdermal delivery systems and devices to deliver active agents to skin or mucosa of a subject, and methods of delivering such active agents. In particular, systems, methods, and devices are described that control the concentration and timing of active agent delivery. Such systems or devices may include a transdermal membrane and a temperature control element for heating and/or cooling a portion of the transdermal delivery system to provide pulsatile active agent delivery through the transdermal membrane.

Claims (42)

1. A transdermal delivery system comprising:

a transdermal membrane;

a first active agent contained within a reservoir separate from and fluidically connected to the transdermal membrane, the transdermal membrane configured to control, in response to temperature, a flow of the first active agent from the reservoir to skin of a subject; and

a temperature control element configured to cyclically heat to a first temperature and/or cool a portion of the transdermal delivery system so as to provide pulsatile delivery of the first active agent through the transdermal membrane,

wherein the temperature control element is further configured to cyclically heat to a second temperature, different from the first temperature, the portion of the transdermal delivery system so as to provide pulsatile delivery of a second active agent through the transdermal membrane.

2. The transdermal delivery system of claim 1 , wherein the temperature control element comprises an electromagnetic energy source.

3. The transdermal delivery system of claim 1 , wherein the temperature control element comprises a resistive element.

4. The transdermal delivery system of claim 1 , wherein the temperature control element comprises an inductive coil or an electromagnet.

5. The transdermal delivery system of claim 1 , wherein the temperature control element comprises a coolant or heat sink.

6. The transdermal delivery system of claim 1 , wherein the portion of the transdermal membrane comprises a polymer configured to be heated or cooled to thereby change active agent flow.

7. The transdermal delivery system of claim 1 , wherein the portion of the transdermal membrane comprises a glass transition polymer configured to be heated or cooled to thereby change active agent flow.

8. The transdermal delivery system of claim 1 , wherein the portion of the transdermal membrane comprises a magnetic nanoparticle configured to be heated or cooled to thereby change active agent flow.

9. The transdermal delivery system of claim 1 , wherein the first active agent comprises nicotine or a nicotine agonist.

10. The transdermal delivery system of claim 1 , wherein the first active agent comprises a Parkinson's disease treatment.

11. The transdermal delivery system of claim 1 , wherein the first active agent comprises at least one of benztropine, carbidopa, dopamine, a dopamine analog, a dopamine antagonist, a dopamine agonist, entacapone, levodopa (L-dopa), pramipexole, rasagiline, ropinirole, rotigotine, safinamide, selegiline, both carbidopa and levodopa, trihexyphenidyl and tolcapone.

12. The transdermal delivery system of claim 1 , further comprising an adhesive in the transdermal membrane configured to adhere the transdermal membrane to the subject.

13. The transdermal delivery system of claim 1 , further comprising an adhesive in the transdermal membrane, wherein the adhesive contains the first active agent.

14. The transdermal delivery system of claim 1 , further comprising a temperature sensor configured to measure the temperature of at least one of the temperature control element, the portion of the transdermal delivery system, or the transdermal membrane.

15. The transdermal delivery system of claim 1 , further comprising a power source configured to provide power to the temperature control element.

16. The transdermal delivery system of claim 1 , further comprising a circuit board.

17. The transdermal delivery system of claim 1 , further comprising a microcontroller configured to control delivery of a stimulus from the temperature control element.

18. The transdermal delivery system of claim 1 , further comprising a communication element configured to receive or transmit data.

19. The transdermal delivery system of claim 18 , wherein the communication element comprises Bluetooth or WiFi.

20. A method for transdermally delivering an active agent, comprising:

cyclically heating to a first temperature and cooling a portion of a transdermal delivery system for a first amount of time; and

after the first amount of time, cyclically heating to a second temperature and cooling the portion of the transdermal delivery system for a second amount of time,

wherein the cyclic heating or cooling steps provide a pulsatile delivery of a first active agent from a reservoir based on the first temperature and a pulsatile deliver of a second active agent based on the second temperature, through a transdermal membrane of the transdermal delivery system to skin of a patient, wherein the transdermal membrane controls a flow of the first active agent and the second active agent in response to temperature.

21. The method of claim 20 , wherein the cyclically heating or cooling steps comprise delivering heat to the portion of the transdermal delivery system.

22. The method of claim 20 , wherein the cyclically heating or cooling steps comprise removing heat from the portion of the transdermal delivery system.

23. The method of claim 20 , wherein at least one of the cyclically heating or cooling steps comprises delivering electromagnetic radiation to the portion of the transdermal delivery system.

24. The method of claim 20 , further comprising repeating the cyclic heating or cooling steps at least once.

25. The method of claim 20 , further comprising repeating the cyclic heating or cooling steps at least twice.

26. The method of claim 20 , wherein the portion of the transdermal delivery system is increased in temperature by at least 4° C. during the cyclic heating and cooling steps.

27. The method of claim 20 , further comprising actively heating skin of the subject adjacent the transdermal membrane by at least 3° C. during the cyclic heating or cooling steps.

28. The method of claim 20 , wherein at least one of the actively heating or cooling steps is performed while the subject is sleeping.

29. A transdermal delivery system comprising:

a transdermal membrane;

a first active agent contained within a reservoir separate from and fluidically connected to the transdermal membrane, the transdermal membrane configured to control, in response to temperature, a flow of the active agent from the reservoir to skin of a subject; and

a temperature control element configured to provide a first stimulus to a portion of the transdermal delivery system so as to provide pulsatile delivery of the first active agent through the transdermal membrane to the skin of the subject and provide a second stimulus to the portion of the transdermal delivery system so as to provide pulsatile delivery of a second active agent through the transdermal membrane, wherein the first stimulus is a first temperature and the second stimulus is a second temperature that is different than the first temperature.

30. The transdermal delivery system of claim 29 , further comprising a reactive material configured to prevent the active agent from flowing across the transdermal membrane until the stimulus is applied.

31. The transdermal delivery system of claim 30 , wherein the reactive material comprises an epoxy, a polyethylene, a polymethacrylate, a polypropylene, a polypropylene glycol, a polyvinylacetate, a polystyrene, a polytetrafluoroethylene, a poly(bisphenol A carbonate), a poly(ethylene terephthalate), a polylactic acid (PLA), a polyglycolic acid (PGA), or a polyurethane.

32. The transdermal delivery system of claim 30 , wherein the reactive material comprises a polymer, a hydrogel, a solvent, gold covered nanoparticles, or magnetic nanoparticles.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 30, 2021
From: RUANE, PATRICK H.; HANCOCK, JACKIE JOE; ARORA, ANUBHAV
To: CTI (ASSIGNMENT FOR THE BENEFIT OF CREDITORS), LLC
Reel/Frame 058247/0456 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 30, 2021
From: CTI (ASSIGNMENT FOR THE BENEFIT OF CREDITORS), LLC
To: MORNINGSIDE VENTURE INVESTMENTS LIMITED
Reel/Frame 058247/0903 →
Continuity (2)
Provisional Application 62768768 · Nov 16, 2018
Related Publication 20220001158A1 · Jan 6, 2022
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