IP Library Granted Patent US 11,241,392
Granted Patent B2
US 11,241,392 · App. 17/124,102 · Granted Feb 8, 2022

Compositions for treatment of attention deficit hyperactivity disorder

Inventors: David Lickrish (Camana Bay, KY); Feng Zhang (Pflugerville, TX)
Assignee: IRONSHORE PHARMACEUTICALS & DEVELOPMENT, INC.
A61K9/5073A61K9/0053A61K9/1676A61K9/4808A61K9/4866A61K9/5015A61K9/5026A61K9/5042A61K9/5047A61K9/5078A61K9/5084A61K31/137A61K31/4458
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Quick Facts
Patent No.
US 11,241,392
App. No.
17/124,102
Granted
Feb 8, 2022
Kind
B2
Abstract

Therapeutic compositions deliver a therapeutic amount of methylphenidate in a delayed and extended release formulation. The dosage form exhibits a lag time prior to release of from 6 to 8 hours or longer, followed by a sustained release period.

Claims (24)

1. A solid, oral pharmaceutical composition comprising: coated particles comprising:

a core comprising methylphenidate hydrochloride;

a sustained release layer enclosing the core; and

a delayed release layer enclosing the sustained release layer;

wherein the coated particles further comprise microcrystalline cellulose, dibutyl sebacate, diglycerides, ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, magnesium stearate, methacrylic acid copolymer Type B, monoglycerides, polysorbate 80 and talc; and

wherein the composition provides at least a 6 hour lag time during which the composition releases no more than 5% of the total methylphenidate hydrochloride followed by a sustained release period with a median T max of about 12-16 hours when administered to healthy adults.

2. The composition of claim 1 , wherein the composition provides at least an 8 hour lag time during which the composition releases no more than about 5% of the total methylphenidate hydrochloride.

3. The composition of claim 1 , wherein the composition provides at least a 10 hour lag time during which the composition releases no more than 10% of the total methylphenidate hydrochloride.

4. The solid, oral pharmaceutical composition of claim 1 , wherein the composition is contained in a capsule comprising hydroxypropyl methylcellulose.

5. The solid, oral pharmaceutical composition of claim 1 , wherein the composition provides pediatric or adolescent subjects having Attention Deficit Hyperactivity Disorder (ADHD) with a significant improvement compared to a placebo in Swanson, Kotkin, Agler, M-Flynn, and Pelham Scale (SKAMP) combined scores for a period from about 11 hours through about 23 hours after administration in the evening.

6. The solid, oral pharmaceutical composition of claim 1 , wherein the composition provides pediatric or adolescent subjects having Attention Deficit Hyperactivity Disorder (ADHD) with a significant improvement compared to a placebo in ADHD Rating Scale (ADHD-RS-IV) Total Score, Before School Functioning Questionnaire (BSFQ) score, and/or Parent Rating of Evening and Morning Behavior-Revised (PREMB-R AM) score when administered in the evening.

7. The solid, oral pharmaceutical composition of claim 1 , wherein the composition comprises 20 mg, 40 mg, 60 mg, 80 mg or 100 mg of methylphenidate hydrochloride.

8. A solid, oral pharmaceutical composition comprising: coated particles consisting of:

a core comprising methylphenidate hydrochloride;

a sustained release layer enclosing the core; and

a delayed release layer enclosing the sustained release layer;

wherein the coated particles further consist of microcrystalline cellulose, dibutyl sebacate, diglycerides, ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, magnesium stearate, methacrylic acid copolymer Type B, monoglycerides, polysorbate 80 and talc; and

wherein the composition provides at least a 6 hour lag time during which the composition releases no more than 5% of the total methylphenidate hydrochloride followed by a sustained release period with a median T max of about 12-16 hours when administered to healthy adults.

9. The composition of claim 8 , wherein the composition provides at least an 8 hour lag time during which the composition releases no more than about 5% of the total methylphenidate hydrochloride.

10. The composition of claim 8 , wherein the composition provides at least a 10 hour lag time during which the composition releases no more than 10% of the total methylphenidate hydrochloride.

11. The solid, oral pharmaceutical composition of claim 8 , wherein the composition is contained in a capsule comprising hydroxypropyl methylcellulose.

12. The solid, oral pharmaceutical composition of claim 8 , wherein the composition provides a pediatric or adolescent subjects having Attention Deficit Hyperactivity Disorder (ADHD) with a significant improvement compared to a placebo in Swanson, Kotkin, Agler, M-Flynn, and Pelham Scale (SKAMP) combined scores for a period from about 11 hours through about 23 hours after administration in the evening.

13. The solid, oral pharmaceutical composition of claim 8 , wherein the composition provides pediatric or adolescent subjects having Attention Deficit Hyperactivity Disorder (ADHD) with a significant improvement compared to a placebo in ADHD Rating Scale (ADHD-RS-IV) Total Score, Before School Functioning Questionnaire (BSFQ) score, and/or Parent Rating of Evening and Morning Behavior-Revised (PREMB-R AM) score when administered in the evening.

14. The solid, oral pharmaceutical composition of claim 8 , wherein the composition comprises 20 mg, 40 mg, 60 mg, 80 mg or 100 mg of methylphenidate hydrochloride.

Assignments (7)
SECURITY INTEREST Recorded Dec 23, 2025
From: COLLEGIUM PHARMACEUTICAL, INC.; BIODELIVERY SCIENCES INTERNATIONAL, INC.; IRONSHORE PHARMACEUTICALS & DEVELOPMENT, INC.
To: TRUIST BANK, A NORTH CAROLINA CHARTERED BANK
Reel/Frame 073302/0334 →
RELEASE OF SECURITY INTEREST Recorded Dec 23, 2025
From: BIOPHARMA CREDIT PLC
To: IRONSHORE PHARMACEUTICALS & DEVELOPMENT, INC.
Reel/Frame 073308/0416 →
PATENT SECURITY AGREEMENT Recorded Sep 3, 2024
From: IRONSHORE PHARMACEUTICALS & DEVELOPMENT, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 068826/0711 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 16, 2020
From: LICKRISH, DAVID
To: IRONSHORE PHARMACEUTICALS & DEVELOPMENT, INC.
Reel/Frame 054671/0740 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 16, 2020
From: ZHANG, FENG
To: FORMULATION TECHNOLOGIES, LLC DBA PHARMAFORM
Reel/Frame 054671/0806 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 16, 2020
From: FORMULATION TECHNOLOGIES, LLC DBA PHARMAFORM
To: HIGHLAND THERAPEUTICS INC.
Reel/Frame 054671/0904 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 16, 2020
From: HIGHLAND THERAPEUTICS INC.
To: IRONSHORE PHARMACEUTICALS & DEVELOPMENT, INC.
Reel/Frame 054672/0022 →