USPatent applicationPatented
orange book

Pharmaceutical formulations of (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate

Granted 12 Jul 2016 · 2 office actions

Current assignee: Array BioPharma · originally Novartis

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Attorney: Attorney · Log in to unlock

Inventors: Rajinder Singh, Hanchen Lee, Daya Verma, LayChoo Tan +3 · Examiner: Savitha Rao · AU 1621 · TC 1600

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Abstract

This invention relates to solid oral pharmaceutical formulations of (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (COMPOUND A) and the use of the formulations for treating proliferative diseases, such as solid tumor diseases.

Description

8 parts
›BACKGROUND

This invention relates to solid oral pharmaceutical formulations of (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (COMPOUND A) and the use of these formulations for treating proliferative diseases, such as solid tumor diseases.

The COMPOUND A has the chemical structure:

Its preparation and its use as an inhibitor of B-RAF for the treatment of proliferative diseases, such as solid tumor diseases, like melanoma and colorectal cancer, are described in WO 2011/025927, which is here incorporated by reference in its entirety.

COMPOUND A is a BCS class II compound exhibiting poor aqueous solubility at weakly acidic and neutral pH which poses a challenge for oral bioavailability and therapeutic effect. The compound exhibits typical weak base solubility characteristics and is highly soluble at low pH, starts to decline at around pH 3.0 and remains low at intrinsic solubility level over the range of neutral pH. Upon emptying from the stomach, COMPOUND A has the tendency to quickly precipitate out of solution due to an abrupt solubility drop in intestinal pH. This significantly reduces COMPOUND A that is available for intestinal absorption. The present invention relates to orally bioavailable pharmaceutical solid dispersion formulations of COMPOUND A.

›BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 represents the 2 stage dissolution profile of the formulation described in Example 1.

FIG. 2 represents the 2-Stage (pH 2 first 60 min to 6.8 after 60 min) dissolution of the formulations described in Examples 2-7.

FIG. 3 represents the dissolution profile of the tablet formulation described in Example 8.

›DETAILED DESCRIPTION OF THE INVENTION · 1 of 2

COMPOUND A is a BCS class II compound which exhibits typical weak base solubility characteristics: higher solubility at low pH, and limited solubility around neutral pH. Therapeutic compounds with such solubility characteristics typically present pharmaceutical formulation scientists with a challenge while attempting to prepare oral formulations capable of improving oral bioavailability of the therapeutic compound. Such challenges in preparing solid oral dosage forms of COMPOUND A are overcome, according to the present invention, by formulating the compound as a solid dispersion.

Solid dispersions are specialized pharmaceutical formulations. The most suitable solid dispersion formulation is the one that enhances solubility and dissolution rate and maintains the stability of the drug substance in an amorphous state. In a typical solid dispersion formulation the drug substance is uniformly dispersed in a solid matrix which promotes dissolution of the drug in the gastrointestinal tract and maintains the drug in a high energy amorphous state.

Pharmaceutical solid dispersions are produced by techniques known in the art, for example, solvent evaporation, kneading and melt extrustion.

According to the present invention, an inner phase is prepared. The inner phase is a solid dispersion comprising COMPOUND A in a suitable polymer matrix, which is composed, for example, of a hydrophilic binder, a surfactant and optional additional excipients, which are known in the art, followed by milling to reduce particle size.

Prior to tableting or encapsulation, the inner phase is preferably combined with additional excipients, which are collectively referred to herein as the external phase. One or more of an acidifier, a filler, a disintegrant, a flow enhancer and a lubricant are typically included in the external phase.

Thus, the present invention relates to a solid oral pharmaceutical formulation which comprises a solid dispersion comprising COMPOUND A.

In one embodiment, the present invention is a solid oral pharmaceutical formulation which comprises:

(a) an inner phase which is a solid dispersion comprising COMPOUND A, and (b) an external phase which comprises additional excipients.

Preferably, the internal phase, or, more preferably, the external phase comprises an acidifier.

The present invention further relates to a solid oral pharmaceutical formulation which comprises:

(a) an inner phase which is a solid dispersion comprising COMPOUND A, a hydrophilic binder and a surfactant; and (b) an external phase which comprises additional excipients.

In another embodiment, the present invention is a solid oral pharmaceutical formulation which comprises:

(a) an inner phase which is a solid dispersion comprising COMPOUND A, a hydrophilic binder, a surfactant and (b) an external phase which comprises one or more of an acidifier, a filler, a disintegrant, a flow enhancer and a lubricant.

The hydrophilic binder should be suitable for complete miscibility with COMPOUND A and upon formulation dissolution, serve as a precipitation inhibitor of COMPOUND A. Suitable hydrophilic binders for inclusion in the inner phase include copovidone, hydroxypropylmethylcellulose, polyvinylpyrrolidone, hydroxypropylcellulose, and methacrylate copolymer, polyethylene oxide, HPMC acetate succinate, HPMC phthalate. Copovidone is especially useful as the hydrophilic binder. KOLLIDON VA64, which is a copolymer of 1-vinyl-2-pyrrolidone and vinyl acetate in a ratio of 6:4 by mass and is available from BASF, is highly suitable for use as a hydrophilic binder in the inner phase.

The surfactant should be suitable for use in melt extrusion to enhance dissolution and solubilization of COMPOUND A. In some cases, the surfactant may help reduce the process temperature through its plasticizing effect. Suitable surfactants for inclusion in the inner phase include poloxamers, such as Poloxamer 188, sodium lauryl sulphate, Tween 80, sorbitol, polysorbate 20, polysorbate 80, Vitamin E TPGS, and polyethylene glycol.

Additional excipients that may optionally be included in the inner phase include acidifiers, and plasticizers.

In the preferred embodiments, the internal phase, or preferably the external phase comprises an acidifier to control the microenvironmental pH in the acidic range. Suitable acidifiers include organic acids such as citric acid, succinic acid, maleic acid, tartaric acid, malic acid and adipic acid.

Suitable fillers, disintegrants, flow enhancers and lubricants are known to those of skill in the art.

Especially useful fillers include lactose, maltodextrin, mannitol, microcrystalline cellulose, pregelatinized starch, and sucrose esters.

Useful disintegrants include crospovidone, croscarmellose sodium, sodium starch glycolate, microcrystalline cellulose, and pregelatinized starch.

Useful flow enhancers include colloidal silicon dioxide, talc, magnesium stearate, and mannitol.

Useful lubricants include magnesium stearate, calcium stearate, glyceryl monostearate, hydrogenated castor oil, sodium lauryl sulfate, sodium stearyl fumarate, stearic acid, zinc stearate, talc, microcrystalline cellulose, and sucrose esters.

In different embodiments of the present invention, the inner phase comprises various ranges of % w/w of active agent, hydrophilic binder and surfactant. For instance, the present inner phase can comprise 5-70% Compound A, 10-90% of hydrophilic binder, and 5-30% surfactant, preferably 5-50% Compound A, 30-80% of hydrophilic binder, and 5-30% surfactant, more preferably 5-40% Compound A, 50-80% of hydrophilic binder, and 5-20% surfactant.

In different embodiments of the present invention, the external phase comprises various ranges of % w/w of acidifier, filler, disintegrant, flow enhancer and lubricant. For instance, the present external phase can comprise 1-70% acidifier, 20-70% filler, 0-30% disintegrant, 0-10% flow enhancer and 0-10% lubricant, preferably 2-60% acidifier, 30-70% filler, 5-20% disintegrant, 0.5-5% flow enhancer and 0.5-5% lubricant, more preferably 10-40% acidifier, 20-40% filler, 1-15% disintegrant, 1-5% flow enhancer and 1-5% lubricant.

›DETAILED DESCRIPTION OF THE INVENTION · 2 of 2

In different embodiments of the present invention, the solid oral dosage form, for example, capsules or tablets, are a blend of the internal and external phases in a ratio of from 100:0 to 30:70, preferably 80:20 to 40:60, most preferably 75:25 to 50:50.

Stabilization of an amorphous form of COMPOUND A in a solid dispersion formulation enhances bioavailability, attributable to a higher dissolution rate and kinetic solubility of the amorphous form in comparison to its crystalline form.

When COMPOUND A stays in amorphous form, an increase in kinetic solubility and dissolution rate as well as in oral bioavailability is achieved using the solid dispersion formulation.

In one embodiment, the present invention is formulated as a capsule, such as hard gelatin capsule or a soft elastic capsule. Alternatively, the present invention is in the form of a tablet or a pill. In these solid oral formulations the amount of COMPOUND A can be present in the ranges of 1-1500 mg, 2.5-800 mg, or 5-400 mg, with preferred examples including 10 mg, 20 mg, 25 mg, 50 mg, 100 mg, 200 mg, 400 mg and 500 mg.

The solid oral formulations of the present invention can be administered to treat diseases which respond to inhibition of B-RAF, particularly diseases that are characterized by a mutation in B-RAF, particularly melanoma and colorectal cancer.

Thus, the present invention further relates to the use of a solid oral pharmaceutical formulation described above for the preparation of a medicament for the treatment of a proliferative disease, especially wherein the proliferative disease is a solid tumor disease characterized by a mutation in B-RAF, such as melanoma or colorectal cancer.

The present invention further relates to a method of treating a proliferative disease which comprises administering to a patient in need of treatment a therapeutically effective amount of a formulation described herein, especially wherein the proliferative disease is a solid tumor disease characterized by a mutation in B-RAF, such as melanoma or colorectal cancer.

The following Examples are intended to illustrate, but not to limit, the invention.

›Examples4
›EXAMPLE 1

The following composition is prepared at constant drug loading of 15% and formulated into 10, 25, 50 mg and 100 mg capsules.

Manufacturing Process:

The processing is performed by hot-melt extrusion using a 18 mm twin-screw Leistriez extruder, followed by milling the extrudates, blending with the external phase and screening. Following blending, the blend is encapsulated into pink hard gelatin capsules of size 0 and 00 for drug doses of 50 and 100 mg respectively. A step-by step approach is shown below:

Weigh the required amount of Compound A, Kollidon VA64 and Poloxamer 188 Blend the mixture Extrude the blend on a 18 mm Leistreiz twin-screw extruder at a feed rate of 1 kg/hour maintaining temperatures of 50 to 160° C. in the extruder. Mill the extrudate Add screened succinic acid and cellulose microcrystalline Add and blend the milled extrudates, succinic acid and cellulose microcrystalline Add crospovidone and aerosil Blend the mixture Add prescreen magnesium stearate Blend the mixture Encapsulation using H&K encapsulator

In-vivo monkey PK data with the resulting capsules show bioavailability suitable for oral administration with a mean Cmax of 11833 ng/ml, Tmax at 4 hours and an AUC of 32686 ng*hr/ml.

XRPD data indicate physical stability of the amorphous solid dispersion formulation (no indication of conversion to the crystalline drug substance) upon storage at accelerated stability conditions of 40° C./75% RH for 4 weeks.

In-vitro 2-stage dissolution studies indicate no change in dissolution kinetics of the solid dispersion between initial (0 week) and 4-week time point at accelerated stability storage conditions indicating no change in physical stability of the solid dispersion.

The present formulation exhibits a glass transition temperature (Tg) of 97° C. which is above the recommended drug product storage temperature of no greater than 30° C., demonstrating physical stability without conversion of the amorphous drug substance into the poorly water soluble crystalline drug substance.

The present formulation shows excellent chemical stability upon storage at accelerated stability conditions at 40° C./75% RH with no evidence of any degradation products and 100% assay content results for COMPOUND A.

›EXAMPLE 2

The following formulation is prepared in a manner similar to that described in Example 1.

This formulation exhibits a glass transition temperature (Tg) of 109° C. demonstrating physical stability without conversion of the amorphous drug substance into the poorly water soluble crystalline drug substance.

›EXAMPLE 3

The following table described the results of a pharmacokinetic study in monkeys of Compound A formulated as a microemulsion dosed at 50 mg/kg and the formulations of Example 1 (Solid Dispersion 1) and Example 2 (Solid Dispersion 2) at a dose of 200 mg of Compound A.

EXAMPLES 2-7

The following formulations are prepared by techniques similar to those described in Example 1, but with a single phase. The dissolution profiles of the formulations are reported in FIG. 2 .

Formulation 2:

Formulation 3:

Formulation 4:

Formulation 5:

Formulation 6:

Formulation 7:

›EXAMPLE 8

The following formulation is prepared by techniques similar to those described in Example 1, but in a tablet dosage form. The dissolution profile of the formulation in 0.1N HCl medium is reported in FIG. 3 .

Formulation 8:

›Tables in the description — 9
Ingredient% w/w
Internal
LGX81817
PVP-K3051
Sorbitol5
External
Succinic Acid9
Cellulose MKGR12
Crosspovidone5
Mg Stearate0.5
Aerosil0.5
Total100
TmaxCmaxAUClastTlast
Treatment_IDSubject —(h)ng/mLng*h/mL(h)
Microemulsionmonkey 1225102100030
(early)monkey 2434102540030
1monkey 34727882030
Mean3.3221618407
SD1.213668589
Solid Dispersion_1monkey 1498304237730
(Kollidon)monkey 22135003581630
Showed emesismonkey 32106002462630
monkey 4227110378
monkey 58134002792424
Mean1183332686
SD18947986
Solid Dispersion_2monkey 12181004332730
(PVP-K30)monkey 22130002975630
monkey 322220580430
monkey 41145003317730
monkey 51129002139030
Mean1214426691
SD593314076
Ingredients% W/W
Compound A25.00
Vitamin E TPGS41.67
Polyethylene glycol 400026.33
Hydroxypropylmethyl cellulose5.00
Talc2.00
Ingredients% W/W
Compound A25.00
Vitamin E TPGS41.67
Polyethylene glycol 400016.33
Hydroxypropylmethyl cellulose15.00
Talc2.00
Ingredients% W/W
Compound A25.00
Vitamin E TPGS41.67
Polyethylene glycol 40005.92
Hydroxypropylmethyl cellulose15.00
Maleic acid5.41
Eudragit L100-555.00
Talc2.00
Ingredients% W/W
Compound A25.00
Vitamin E TPGS41.67
Polyethylene glycol 40005.92
Hydroxypropylmethyl cellulose5.00
Maleic acid5.41
Eudragit L100-5515.00
Talc2.00
Ingredients% W/W
Compound A24.00
Vitamin E TPGS40.00
Hydroxypropylmethyl cellulose14.40
Maleic acid5.20
Eudragit L100-5514.40
Talc2.00
Ingredients% W/W
Compound A24.00
Vitamin E TPGS40.00
Polyethylene glycol 40001.20
Hydroxypropylmethyl cellulose14.40
Lactic acid4.00
Eudragit L100-5514.40
Talc2.00
Ingredient% w/w
Internal
Compound A10.0
Kollidon VA6430.1
Pluronic F 683.4
External
Kollidon VA643.0
Cellulose MKGR37.5
Crosspovidone15.0
Mg Stearate1.0
Total100

Claims as granted

19 claims

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Classifications

3 codes
LexDana classificationderived from the 10 nearest patents by meaning — ours, not an office code
  • Medicinal preparations containing organic active ingredients88.9%
  • Antineoplastic agents33.3%
IPC · International Patent Classification
Section A — Human necessities
  • A61K31/506
  • A61K9/48
  • A61K9/20

As published → as granted

10 → 19 claims

The claims as they stood in the application’s own pre-grant publication (US-2014309250-A1), 2014, beside the claims that issued in 2016. Both are the same application. Claims are matched on their text, not their number.

19 added10 not granted
removedadded
›Claim by claim — 29
not grantedpublished claim 1independentno counterpart in the grant

A solid oral pharmaceutical formulation which comprises a solid dispersion comprising COMPOUND A.

not grantedpublished claim 2no counterpart in the grant

A solid oral pharmaceutical formulation of claim 1 , which comprises: an inner phase which is a solid dispersion comprising COMPOUND A, and an external phase which comprises additional excipients.

not grantedpublished claim 3no counterpart in the grant

A solid oral pharmaceutical formulation of claim 2 wherein the internal phase or the external phase comprises an acidifier.

not grantedpublished claim 4no counterpart in the grant

The present invention further relates to a solid oral pharmaceutical formulation of claim 2 , which comprises: an inner phase which is a solid dispersion comprising COMPOUND A, a hydrophilic binder and a surfactant; and an external phase which comprises additional excipients.

not grantedpublished claim 5no counterpart in the grant

A solid oral pharmaceutical formulation of claim 1 , which comprises: an inner phase which is a solid dispersion comprising COMPOUND A, a hydrophilic binder, a surfactant and an external phase which comprises one or more of an acidifier, a filler, a disintegrant, a flow enhancer and a lubricant.

not grantedpublished claim 6no counterpart in the grant

Use of a solid oral pharmaceutical formulation of claim 1 for the preparation of a medicament for the treatment of a proliferative disease.

not grantedpublished claim 7no counterpart in the grant

A method of treating a proliferative disease which comprises administering to a patient in need of treatment a therapeutically effective amount of a formulation according to claim 1 .

not grantedpublished claim 8no counterpart in the grant

Use of the solid oral formulations according to claim 1 for the treatment of a disease which responds to inhibition of B-RAF.

not grantedpublished claim 9no counterpart in the grant

Use according to claim 8 wherein the disease is characterized by a mutation in B-RAF.

not grantedpublished claim 10no counterpart in the grant

Use according to claim 9 wherein the disease is melanoma or colorectal cancer.

addedgranted claim 1independentno counterpart in the publication

A solid oral pharmaceutical formulation, which comprises: an inner phase which is a solid dispersion comprising amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methyl sulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (COMPOUND A); copovidone; and poloxamer 188 or sorbitol; and an external phase which comprises succinic acid, microcrystalline cellulose, crospovidone, colloidal silicon dioxide, and magnesium stearate.

addedgranted claim 2no counterpart in the publication

The solid oral pharmaceutical formulation of claim 1 , wherein the inner phase comprises from 5% to 40% by weight of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methyl sulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A), from 50% to 80% by weight of copovidone, and from 5% to 20% by weight of poloxamer 188 or sorbitol.

addedgranted claim 3no counterpart in the publication

The solid oral pharmaceutical formulation of claim 2 , wherein the external phase comprises from 2% to 60% by weight of succinic acid, from 30% to 70% by weight of microcrystalline cellulose, from 5% to 20% by weight of crospovidone, from 0.5% to 5% by weight of colloidal silicon dioxide, and from 0.5% to 5% by weight of magnesium stearate.

addedgranted claim 4no counterpart in the publication

The solid oral pharmaceutical formulation of claim 1 , comprising a blend of the internal and external phases in a ratio of from 80:20 to 40:60.

addedgranted claim 5no counterpart in the publication

The solid oral pharmaceutical formulation of claim 4 , comprising a blend of the internal and external phases in a ratio of from 75:25 to 50:50.

addedgranted claim 6no counterpart in the publication

The solid oral pharmaceutical formulation of claim 1 , comprising 10 mg, 25 mg, 50 mg, or 100 mg of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A).

addedgranted claim 7no counterpart in the publication

The solid oral pharmaceutical formulation of claim 6 , wherein the formulation comprises 15% by weight of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methyl sulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A).

addedgranted claim 8no counterpart in the publication

The solid oral pharmaceutical formulation of claim 1 , wherein the formulation is selected from the group consisting of: A) Ingredient % w/w Internal Phase amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3- 15 (methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4- yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) copovidone 45 Poloxamer 188 5 External Phase Succinic acid 13 Microcrystalline cellulose 16 Crosspovidone 5 magnesium Stearate 0.5 Colloidal silicon dioxide 0.5 Total 100 and B) Ingredient % w/w Internal amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3- 17 (methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4- yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) PVP-K30 51 Sorbitol 5 External Succinic Acid 9 Microcrystalline cellulose 12 Crosspovidone 5 Mg Stearate 0.5 Colloidal silicon dioxide 0.5 Total 100.

addedgranted claim 9no counterpart in the publication

The solid oral formulation of claim 1 , wherein the formulation is selected from the group consisting of: Ingredient Internal Phase (mg) amorphous (S)-methyl (1-((4-(3-(5- 10.0 chloro-2-fluoro-3- (methylsulfonamido)phenyl)-1- isopropyl-1H-pyrazol-4-yl)pyrimidin- 2-yl)amino)propan-2-yl)carbamate (Compound A) Copovidone 29.9 Poloxamer 188 3.3 External Phase (mg) Succinic acid 8.7 Cellulose microcrystalline 10.7 Crospovidone 3.3 Colloidal silicon dioxide 0.3 Magnesium Stearate 0.3 Total (mg) 66.6, Ingredient Internal Phase (mg) amorphous (S)-methyl (1-((4(-3(5-chloro-2-fluoro-3- 25.0 (methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4- yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) Copovidone 74.8 Poloxamer 188 8.4 External Phase (mg) Succinic acid 21.7 Cellulose microcrystalline 26.7 Crospovidone 8.4 Colloidal silicon dioxide 0.9 Magnesium Stearate 0.9 Total (mg) 166.5, Ingredient Internal Phase (mg) amorphous(S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3- 50.0 (methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4- yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) Copovidone 150.0 Poloxamer 188 16.7 External Phase (mg) Succinic acid 43.3 Cellulose microcrystalline 53.3 Crospovidone 16.7 Colloidal silicon dioxide 1.7 Magnesium Stearate 1.7 Total (mg) 333.4, and Ingredient Internal Phase (mg) amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3- 100.0 (methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4- yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) Copovidone 300.0 Poloxamer 188 33.3 External Phase (mg) Succinic acid 86.7 Cellulose microcrystalline 106.7 Crospovidone 33.3 Colloidal silicon dioxide 3.3 Magnesium Stearate 3.3 Total (mg) 666.6.

addedgranted claim 10no counterpart in the publication

The solid oral pharmaceutical formulation of claim 8 , comprising a blend of the internal and external phases in a ratio of from 75:25 to 50:50.

addedgranted claim 11no counterpart in the publication

The solid oral pharmaceutical formulation of claim 8 , formulated as a capsule or a tablet.

addedgranted claim 12no counterpart in the publication

The solid oral pharmaceutical formulation of claim 8 , wherein the formulation is prepared by a process comprising: (i) blending a mixture comprising amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (COMPOUND A); copovidone; and poloxamer 188 or sorbitol to provide a first blend; (ii) extruding the first blend to provide an extrudate; (iii) milling the extrudate to provide a milled extrudate; (iv) blending the milled extrudate with at least one of succinic acid, microcrystalline cellulose, crospovidone, colloidal silicon dioxide, and magnesium stearate to provide a second blend; (v) optionally repeating step (iv) as needed to provide a third blend comprising the succinic acid, microcrystalline cellulose, crospovidone, colloidal silicon dioxide, magnesium stearate, and the milled extrudate; and (vi) optionally tableting or encapsulating the third blend.

addedgranted claim 13no counterpart in the publication

The solid oral pharmaceutical formulation of claim 8 , wherein the formulation is formulation A) and reaches a maximum plasma concentration (Cmax) of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (compound A) compound A at 4 hours (Tmax) after administration.

addedgranted claim 14no counterpart in the publication

The solid oral pharmaceutical formulation of claim 8 , wherein the formulation is formulation A), and the formulation reaches a mean maximum plasma concentration (Cmax) of 11,833 ng/mL and produces a mean area under the plasma concentration versus time curve (AUC) of 32,686 ng*hr/ml when orally dosed to a monkey, wherein a dose of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) is 200 mg.

addedgranted claim 15no counterpart in the publication

The solid oral pharmaceutical formulation of claim 8 , wherein the formulation provides a mean maximum plasma concentration (Cmax) of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) that is about five times greater than the mean maximum plasma concentration of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) administered as microemulsion formulation when orally dosed to a monkey, wherein a dose of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) as a solid oral pharmaceutical formulation is 200 mg and a dose of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) as a microemulsion formulation is 50 mg/kg.

addedgranted claim 16no counterpart in the publication

The solid oral pharmaceutical formulation of claim 15 , wherein the formulation provides a plasma concentration versus time curve (AUC) of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methyl sulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) that is greater than the plasma concentration versus time curve (AUC) produced by amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methyl sulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) administered as microemulsion formulation when orally dosed to a monkey, wherein a dose of Compound A as a solid oral pharmaceutical formulation is 200 mg and a dose of amorphous (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methyl sulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) as a microemulsion formulation is 50 mg/kg.

addedgranted claim 17no counterpart in the publication

The solid oral pharmaceutical formulation of claim 8 , wherein the formulation has a physical stability of at least four weeks upon storage under accelerated stability conditions of 40° C./75% RH.

addedgranted claim 18no counterpart in the publication

The solid oral pharmaceutical formulation of claim 17 , wherein the formulation is formulation A), and wherein: in-vitro 2-stage dissolution studies indicate no change in dissolution kinetics of the solid dispersion between initial (0 week) and 4-week time points under accelerated stability conditions; and/or the formulation is free of crystalline (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) at the 4-week time point upon storage at accelerated stability conditions of 40° C./75% RH for 4 weeks; and/or the formulation is free of degradation products and 100% assay content results for (S)-methyl (1-((4-(3-(5-chloro-2-fluoro-3-(methyl sulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (Compound A) upon storage at accelerated stability conditions at 40° C./75% RH.

addedgranted claim 19no counterpart in the publication

The solid oral pharmaceutical formulation of claim 8 , wherein the formulation exhibits a glass transition temperature (Tg) of 97° C. or 109° C.

Two documents only — the publication and the grant. What was filed, argued or amended between them is not held and is not shown here.

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3.6 y
1,329 days filing → grant
Office actions
1
after a restriction
Responses
2
no RCE
Examiner
Savitha Rao
art unit 1621 · TC 1600
Citations: 104 back · 11 forward

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Chain of title

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