# US 9,751,889 B2 · Crystalline form I of ibrutinib

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- Number: US 9,751,889 B2
- Document ID: US9751889B2
- Status: Granted
- Kind: B2
- Application number: 15/100,247
- Filed: 2014-11-26
- Published: 2017-01-05
- Granted: 2017-09-05
- Earliest claimed: 2013-11-27
- Assignees: Crystal Pharmatech Co., Ltd.; Suzhou Pengxu Pharmatech Co., Ltd.
- Applicants: Crystal Pharmatech Inc.; Suzhou Pengxu Pharmatech Co., Ltd.
- Inventors: Minhua Chen; Yanfeng Zhang; Chaohui Yang; Xiaoyu Zhang; Peng Wang; Pixu Li; Fei Lu; Heng Ge
- Web page: https://patentgrep.com/patent/US9751889B2

## CPC

- C07D 487/04: Ortho-condensed systems
- A61K 31/519: ortho- or peri-condensed with heterocyclic rings
- A61P 35/00: Antineoplastic agents
- A61P 35/02: specific for leukemia
- C07B 2200/13: Crystalline forms, e.g. polymorphs
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- C07B: GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR (preparation of carboxylic acid esters by telomerisation C07C67/47; telomerisation C08F)

## Abstract

Crystalline Form I of ibrutinib, processes for its preparation, pharmaceutical compositions comprising the new Form, and use of Form I of ibrutinib for treating or delaying diseases or disorders related to activity of Bruton's tyrosine kinase (BTK) proteins are disclosed. The novel Form was characterized by X-ray powder diffraction, differential scanning calorimetry, and other techniques. It can be readily prepared and is suitable for use in the preparation of solid dosage forms.

## Claims

### Claim 1

A crystalline form of ibrutinib, designated as Form I, having an X-ray powder diffraction pattern comprising the following 2θ values measured using CuKα radiation: 5.2°±0.2°, 17.6°±0.2°, and 22.1°±0.2°.

### Claim 2 (depends on 1)

The crystalline form of claim 1, wherein the X-ray powder diffraction pattern further comprises the following 2θ values measured using CuKα radiation: 19.3°±0.2°, 20.8°±0.2°, and 22.4°±0.2°.

### Claim 3 (depends on 1)

The crystalline form of claim 1, wherein the X-ray powder diffraction pattern further comprises the following 2θ values measured using CuKα radiation: 16.2°±0.2°, 18.1°±0.2°, 18.9°±0.2°, and 23.0°±0.2°.

### Claim 4 (depends on 1)

The crystalline form of claim 1, having an X-ray powder diffraction pattern substantially as depicted in FIG. 1.

### Claim 5 (depends on 1)

The crystalline form of claim 1, having a differential scanning calorimetric thermogram substantially as depicted in FIG. 2.

### Claim 6 (depends on 1)

The crystalline form of claim 1, having a thermal gravimetric analysis thermogram substantially as depicted in FIG. 3.

### Claim 7

A process for the preparation of ibrutinib Form I, comprising: dissolving ibrutinib in a solvent system selected from the group consisting of alcohol having three or more carbon atoms, ether, ketone, a mixture of alcohol with alkane, a mixture of ether and alkane, and a mixture of ketone with alkane to form a solution; and crystallizing said Form I by cooling the solution under ambient conditions or in a controlled manner.

### Claim 8 (depends on 7)

The process according to claim 7, wherein said solvent system is a mixture of an alcohol or ketone and an alkane.

### Claim 9 (depends on 8)

The process according to claim 8, wherein said alcohol is a lower alcohol, and said alkane is a C4-C10 alkane.

### Claim 10 (depends on 8)

The process according to claim 8, wherein the solvent system is a mixture of 2-propanol and n-heptane.

### Claim 11 (depends on 8)

The process according to claim 8, wherein said ketone is a C3-C6 ketone, and said alkane is a C4-C10 alkane.

### Claim 12 (depends on 8)

The process according to claim 8, wherein the solvent system is a mixture of acetone and n-heptane.

### Claim 13

A pharmaceutical composition comprising crystalline Form I of ibrutinib and a pharmaceutically acceptable carrier, wherein said crystalline Form I has an X-ray powder diffraction pattern comprising the following 2θ values measured using CuKα radiation: 5.2°±0.2°, 17.6°±0.2°, and 22.1°±0.2°.

### Claim 14 (depends on 13)

The pharmaceutical composition of claim 13, wherein the X-ray powder diffraction pattern of said crystalline Form I further comprises the following 2θ values measured using CuKα radiation: 19.3°±0.2°, 20.8°±0.2°, and 22.4°±0.2°.

### Claim 15 (depends on 13)

The pharmaceutical composition of claim 13, wherein the X-ray powder diffraction pattern further comprises the following 2θ values measured using CuKα radiation: 16.2°±0.2°, 18.1°±0.2°, 18.9°±0.2°, and 23.0°±0.2°.

### Claim 16 (depends on 13)

The pharmaceutical composition of claim 13, wherein said crystalline Form I has a melting point at about 135.1° C. as measured by differential scanning calorimetry (DSC).

### Claim 17 (depends on 13)

The pharmaceutical composition of claim 13, wherein the X-ray powder diffraction pattern of said crystalline Form I has an X-ray powder diffraction pattern substantially as depicted in FIG. 1.

### Claim 18

A method of treating or delaying the progression or onset of a disease or disorder in connection with activity of a Bruton's tyrosine kinase (BTK), comprising administering to a subject in need thereof a pharmaceutical composition comprising crystalline Form I of ibrutinib.

### Claim 19 (depends on 18)

The method of claim 18, wherein said disease or disorder is a B cell malignancy selected from the group consisting of chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL), mantle cell lymphoma (MCL), diffuse large B Cell lymphoma (DLBCL), and multiple myeloma.
