A method of forming a core-shell polymer nanoparticle encapsulating an active agent is disclosed, including the use of a multi-solvent system in which to dissolve the active agent and a polymer prior to their precipitation using an antisolvent. The preferred use of an organic solvent system comprising two or more organic solvents allows for a high degree of control, as compared with the use of a single solvent, and enables the active agent to be precipitated more or less simultaneously with, or just prior to, the polymer.

The present invention provides long-acting parenteral pharmaceutical compositions comprising a therapeutically effective amount of Cariprazine or salts thereof, in a depot form suitable for administering at a medically acceptable location in a subject in need thereof. The depot compositions are preferably in the form of in-situ implants suitable for subcutaneous or intramuscular administration and provide prolonged release of the Cariprazine active ingredient and/or its metabolites desmethyl Cariprazine (DCAR) and didesmethyl Cariprazine (DDCAR) for a period of at least 4 weeks following a single administration. The present invention further provides methods of use of the depot compositions for the treatment of schizophrenia, major depressive disorder, and bipolar disorder.

Compositions, reagents, formulations and methods to treat disease including autoimmune diseases and allergy are described. The compositions comprise an antigen causing immune intolerance, an immunosuppressant in a sustained release formulation. The methods, compositions, formulations and reagents to treat allergy also relate to applying the combination of allergen and immune activity enhancing agent in a sustained release formulation to a subject in need.

The disclosure provides compounds of Formula (I), wherein X, Y, and Z are defined herein. The disclosure also provides particles comprising one or more compounds described herein, compositions comprising one or more compounds or particles described herein and a pharmaceutically acceptable carrier, and methods of treating a subject in need thereof comprising administering one or more compounds, particles, or compositions described herein to the subject.

X—Y—Z  (I)

Compositions, reagents, formulations and methods to treat disease including autoimmune diseases and allergy are described. The compositions and formulations comprise an antigen causing immune intolerance, an immunosuppressant and a viscosity enhancing agent or a thermal phase changing agent. The reagent is a polymer conjugate comprising an antigen causing immune intolerance and an immunosuppressant conjugated to a polymer.

Microparticulate compositions and methods for delivery and pulsatile release of one or more sting agonists and/or receptors have been developed. The compositions include polymeric microdevices formed from biodegradable and biocompatible polymers or co-polymers thereof including a shell and compartment(s) or discrete regions in the compartment(s) formed by an additive process such as micromolding, three dimensional printing and lithography. The compositions include microdevices that release individual doses of incorporated STING agonist and/or receptors at defined times, for example, in pulses up to several months after administration with essentially no leakage between releases.

Certain embodiments are directed to methods for making programmable bioinspired nanoparticles (P-BiNP). Nanoparticles are coated with a cell membrane derived from a cell stimulated to express or overexpress a protein identified as being expressed in a target cell, forming a homotypic and organ targeted nanoparticle delivery vehicle.

A “nanolipogel” is a delivery vehicle including one or more lipid layer surrounding a hydrogel core, which may include an absorbent such as a cyclodextrin or ion-exchange resin. Nanolipogels can be constructed so as to incorporate a variety of different chemical entities that can subsequently be released in a controlled fashion. These different incorporated chemical entities can differ dramatically with respect to size and composition. Nanolipogels have been constructed to contain co-encapsulated proteins as well as small hydrophobic drugs within the interior of the lipid bilayer. Agents incorporated within nanolipogels can be released into the milieu in a controlled fashion, for example, nanolipogels provide a means of achieving simultaneous sustained release of agents that differ widely in chemical composition and molecular weight. Additionally, nanolipogels can favorably modulate biodistribution.

The disclosure provides, among other things, compositions that bind to and inhibit the biological activity of soluble biomolecules, as well as pharmaceutical compositions thereof. Also provided herein are a number of applications (e.g., therapeutic applications) in which the compositions are useful.

The present invention provides compositions comprising peptide-coupled biodegradable poly(lactide-co-glycolide) (PLG) particles. In particular, PLG particles are surface-functionalized to allow for coupling of peptide molecules to the surface of the particles (e.g., for use in eliciting induction of immunological tolerance).