Low viscosity highly concentrated suspensions

1. A high concentration low viscosity suspension comprising:

a pharmaceutically acceptable solvent;

one or more sub-micron or micron-sized non-crystalline particles comprising one or more proteins or peptides; and

one or more additives in the pharmaceutically acceptable solvent to form a high concentration low viscosity suspension with a concentration of at least 200 mg/ml and a solution viscosity of between 2 and 50 centipoise that is suspendable upon shaking or agitation, wherein upon delivery the one or more sub-micron or micron-sized peptides dissolves and do not form peptide aggregates or only a small fraction of aggregates.

2. The composition of claim 1 , wherein the pharmaceutically acceptable solvent comprises a pharmaceutically acceptable aqueous solvent, a pharmaceutically acceptable non-aqueous solvent or combination.

3. The composition of claim 1 , wherein the concentration of the high concentration low viscosity suspension is greater than 250, 300, 400, or 500 mg/mL, and the high concentration low viscosity suspension has a ratio of one or more additives to the one or more proteins or peptides that is less than 0.01, 0.05, 0.1, 0.2, 0.5, 1, 2, 2.5, 5, 7.5, 10, 12 or more and the high concentration low viscosity suspension has a viscosity of less than 40, 30, 20, or 10 centipoise.

4. The composition of claim 1 , wherein the one or more proteins or peptides are selected from an antibody, one or more antibodies conjugated to a metal nanoparticle, one or more antibodies on a shape based composition, a growth factor, an antigen, a vaccine, an anti-inflammatory agent, a therapeutic polypeptide or peptide or a combination thereof.

5. The composition of claim 1 , wherein the one or more submicron or micron-sized peptide particles have a volume average diameter of 30, 20, 10, 5, 2, 1 0.75, 0.5, 0.4, 0.3, 0.1, 0.05, or 0.02 micrometers.

6. The composition of claim 1 , wherein the one or more additives are selected from the group consisting of a stabilizer, a surfactant, an emulsifier, a salt, an amino acid, a small peptide, a polypeptide, a protein, a polymer, a cosolvent, a sodium salt, a zinc salt, a lithium salt, a potassium salt, a ammonium salt, a calcium salt, a magnesium salt, a zinc salt, a chloride salt, a bromide salt, an iodide salt, a phosphate salt, a sulfate salt, a glycerol, an erythritol, an arabinose, a xylose, a ribose, an inositol, a fructose, a galactose, a maltose, a glucose, a mannose,a trehalose, a sucrose, a poly(ethylene glycol), a carbomer 1342, a glucose polymers, a silicone polymer, a polydimethylsiloxane, a polyethylene glycol, a carboxy methyl cellulose, a poly(glycolic acid), a poly(lactic-co-glycolic acid), a polylactic acid, a dextran, a poloxamers, organic co-solvents selected from ethanol, N-methyl-2-pyrrolidone, PEG 300, PEG 400, PEG 200, PEG 3350, Propylene Glycol, N,N Dimethylacetamide, N-methyl-2-pyrrolidone, dimethyl sulfoxide, solketal, tetahydrofurfuryl alcohol, diglyme, ethyl lactate and combinations thereof.

7. The composition of claim 1 , wherein the one or more additives are part of the one or more sub-micron or micron-sized particles, the high concentration low viscosity suspension or both.

8. The composition of claim 1 , wherein more than 0.5, 0.6, 0.7, 0.8, 0.9, 0.95, or 0.99 of the one or more proteins or peptides are not soluble as entities smaller than 30, 20, or 10 nm.

9. The composition of claim 1 , wherein a relative monomer fraction of one or more proteins or peptides prior to the formation of the high concentration low viscosity suspension is greater than 0.7, 0.8, 0.9, 0.95, 0.97, 0.98, or 0.99 upon dissolution of the one or more proteins or peptides into a buffered aqueous media and a relative monomer fraction of one or more proteins or peptides in the high concentration low viscosity suspension is 0.93, 0.95, 0.96, 0.97, 0.98, 0.99, 0.995 the value of the monomer fraction upon dissolution of the peptides into a buffered aqueous media of the one or more micron-sized peptide particles.

10. The composition of claim 1 , wherein the one or more sub-micron or micron-sized particles dissolve in a subject upon delivery in less than 1, 5, 10, 30, and 60 minutes.

11. The composition of claim 1 , further comprising a time release agent to control the release of the one or more sub-micron or micron-sized particles over a time of between about 1 hour and 10 weeks.

12. The composition of claim 1 , wherein a non-monomeric fraction of the one or more proteins or peptides is delivered at a concentration of less than 5%, 2%, 1%, 0.5%, 0.2%, or 0.1% of a total peptide weight.

13. A single dose high concentration low viscosity suspension comprising:

a single dose container;

a pharmaceutically acceptable solvent disposed in the single dose container, wherein the pharmaceutically acceptable solvent is selected from an aqueous solvent, a non-aqueous solvent or combination thereof;

one or more sub-micron or micron-sized non-crystalline particles disposed in the single dose container, wherein the one or more sub-micron or micron-sized non-crystalline particles comprising one or more proteins or peptides; and

one or more additives optionally disposed in the single dose container to form a high concentration low viscosity suspension with a concentration of at least 200 mg/ml and a solution viscosity of between 2 and 50 centipoise syringeable through a 21 to 27-gauge needle.

14. The composition of claim 1 , wherein the concentration of the high concentration low viscosity suspension is greater than 300 mg/mL.