Alkermes Pharma Ireland Limited

E Ink Corporation

Brian Steinberg

Tarek A Zeidan

Magali B Hickey

David Manser

Kristopher Perkin

Philip Cresswell

Elaine Liversidge

Greg Smith

Stephen J Telfer

Lee Yezek

Luke M Slominski

Jennifer M Morrison

Andrew A Drabek

Michael J Palmieri, Jr

Marjie L Hard

Sara Montminy Paquette

Ryan Turncliff

Ethan P Cash

Described is a composition comprising (a) a population of particles of an aripiprazole prodrug having a volume based particle size (Dv50) of less than 1000 nm and (b) at least one surface stabilizer comprising an adsorbed component which is adsorbed on the surface of the aripiprazole prodrug particles and a free component available for solubilisation of the aripiprazole prodrug. The surface stabilizer to prodrug ratio provides the optimal quantity of free surface stabilizer for the purposes of producing a lead-in formulation. Also described are methods of treatment using the aforementioned composition.

Aripiprazole prodrug composition

Polymer shells similar to those described in U.S. Pat. No. 6,822,782 can be formed on pigment particles by (a) physi-sorping a reagent comprising polymerizable groups on to the pigment particles by treating the particle with a reagent having a polymerizable or polymerization-initiating group, such that the reagent will not desorb from the particle surface when the particle is placed in a hydrocarbon medium; or (b) treating pigment particles bearing nucleophilic groups with a reagent having a polymerizable or polymerization-initiating group, and an electrophilic group, thus attaching the polymerizable or polymerization-initiating groups to the particle surface. The zeta potential of the pigment particles can be varied by a process similar to (b) but using a reagent which does not have a polymerizable or polymerization-initiating group.

Electrophoretic particles and processes for the production thereof

Described herein is a composition comprising: (a) a first population of particles of a first aripiprazole prodrug; and (b) a second population of particles of a second aripiprazole prodrug, different to the first aripiprazole prodrug. At least one of the first and second prodrug populations has a volume based particle size (Dv50) of less than about 1000 nm. Also described herein are methods of treatment using the aforementioned composition, and methods of making the aforementioned composition.

Compositions of multiple aripiprazole prodrugs

Described is a composition comprising (a) a population of particles of an aripiprazole prodrug having a volume based particle size (Dv50) of less than 1000 nm and (b) at least one surface stabilizer comprising an adsorbed component which is adsorbed on the surface of the aripiprazole prodrug particles and a free component available for solubilization of the aripiprazole prodrug. The surface stabilizer to prodrug ratio provides the optimal quantity of free surface stabilizer for the purposes of producing a lead-in formulation. Also described are methods of treatment using the aforementioned composition.

Aripiprazole prodrug compositions

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Arlington, MA, United States of America

Brian Steinberg