COMPOSITIONS OF MICRONIZED SOLABEGRON AND METHODS OF USE

1 . A pharmaceutical composition consisting of about 100 mg to about 125 mg of micronized solabegron or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient, wherein at least 90% of the micronized solabegron has a particle size of about 0.1 micron to 30 microns and wherein the pharmaceutical composition is an immediate release composition.

2 . The pharmaceutical composition of claim 1 , wherein the pharmaceutically acceptable excipient is selected from the group consisting of a filler, a disintegrant, a binder, a wetting agent, a lubricant, and a glidant, or combinations thereof.

3 . The pharmaceutical composition of claim 1 , wherein the excipient is selected from the group consisting of mannitol, poloxamer 188, methyl cellulose, croscarmellose sodium, magnesium stearate, colloidal silicon dioxide, and polyvinyl alcohol, or combinations thereof.

4 . The pharmaceutical composition of claim 1 , wherein the excipient is selected from the group consisting of sucrose, wheat starch, microcrystalline cellulose, talc, lactose monohydrate, calcium carbonate, titanium dioxide, stearic acid, croscarmellose sodium, povidone, polyethylene glycol 8000, colloidal silicon dioxide, ferric oxide, carboxymethylcellulose sodium, white wax, magnesium stearate, and carnauba wax or combinations thereof.

5 . The pharmaceutical composition of claim 1 , wherein the excipient is selected from the group consisting of colloidal anhydrous silica, calcium hydrogen phosphate dihydrate, cellulose microcrystalline, hypromellose, magnesium stearate, sodium starch glycolate (pH 3.0 to 5.0), stearic acid, and titanium dioxide or combinations thereof.

6 . (canceled)

7 . The pharmaceutical composition of claim 1 , wherein the composition is a tablet, a capsule, a granule, or a powder.

8 . (canceled)

9 . A method of treating overactive bladder or one or more symptoms thereof, in a subject in need thereof, comprising orally administering to the subject a pharmaceutical composition consisting of a therapeutically effective amount of about 100 mg to about 125 mg of micronized solabegron or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient, wherein at least 90% of solabegron particles have a particle size of about 0.1 micron to 30 microns and wherein the pharmaceutical composition is an immediate release composition.

10 . The method of claim 9 , wherein the pharmaceutical composition is administered twice daily.

11 . (canceled)

12 . The method of claim 9 , wherein the one or more symptoms are selected from increased frequency of urinary urgency, nocturia, increase in urinary micturition frequency, and urinary incontinence, and combination thereof.

13 . The method of claim 9 , further comprising administering to the subject one or more additional therapeutic agents selected from the group consisting of alpha adrenoceptor blockers, botulinum toxin, purinergics, cannabinoids, transient receptor potential (TRP) protein inhibitors, prostaglandins, percutaneous tibial nerve stimulators, sacral nerve stimulators, 5-alpha reductase inhibitors, phosphodiesterase-5 inhibitors, beta-3 adrenoreceptor agonists, and combination thereof.

14 .- 17 . (canceled)

18 . The method of claim 9 , wherein the pharmaceutical composition achieves a target AUC 48 of about 17,000 ng·hr/mL to about 23,000 ng·hr/mL.

19 . The method of claim 18 , wherein the therapeutically effective amount of micronized solabegron is about 100 mg.

20 . The method of claim 19 , wherein the pharmaceutical composition is administered twice a day.

21 .- 23 . (canceled)

24 . The pharmaceutical composition of claim 1 , wherein the micronized solabegron has a particle size of about 0.1 micron to 10 microns.

25 . The method of claim 18 , wherein the therapeutically effective amount of micronized solabegron is about 125 mg.

26 . The method of claim 25 , wherein the pharmaceutical composition is administered twice a day.