Patents by Inventor Alexander J. Stirk
Alexander J. Stirk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250049774Abstract: The present disclosure provides crystalline forms of apalutamide. Specific crystalline forms provided by the disclosure include apalutamide Form APO-I, a cocrystal solvate of apalutamide, vanillin, and n-butyl acetate; apalutamide Form APO-II, a cocrystal solvate of apalutamide, ethylvanillin, and n-butyl acetate; apalutamide Form APO-III, a cocrystal of apalutamide and 4-aminobenzoic acid; and apalutamide Form APO-IV, a cocrystal of apalutamide and vanillin. Also provided are pharmaceutical compositions including the apalutamide crystalline forms and the use of these forms in the treatment of prostate cancer, and in particular metastatic and non-metastatic castration-resistant prostate cancer.Type: ApplicationFiled: November 29, 2022Publication date: February 13, 2025Inventors: Alexander J. Stirk, Fabio E. S. Souza, Avedis Karadeolian, Allan W. Rey
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Publication number: 20250019346Abstract: The present invention provides ruxolitinib salts and crystalline forms thereof, pharmaceutical compositions including these salts and crystalline forms thereof, and the use of these salts in the treatment of acute graft versus host disease, polycythemia vera, myelofibrosis, and atopic dermatitis.Type: ApplicationFiled: November 16, 2022Publication date: January 16, 2025Inventors: Fabio E. S. Souza, Alexander J. Stirk, Avedis Karadeolian, Allan W. Rey
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Publication number: 20240010651Abstract: The present invention provides solvent-limited processes for the preparation of an existing crystalline solid form of an active pharmaceutical ingredient comprising mixing, in the presence of solvent vapour, of a solid active pharmaceutical ingredient and a pharmaceutically acceptable entity that is either a high-boiling liquid or a solid. Also provided is the use of a standard rotary apparatus, such as a rotary cone dryer, for application of the processes herein.Type: ApplicationFiled: February 24, 2021Publication date: January 11, 2024Inventors: Alexander J. Stirk, Fabio E. S. Souza, Avedis Karadeolian, Allan W. Rey, Fatemeh Mohammadpourmir
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Patent number: 11814356Abstract: Provided is a cabozantinib acesulfamate salt and a crystalline form thereof. Also provided are pharmaceutical compositions including the salt and crystalline form thereof, and methods of treatment of progressive, metastatic medullary thyroid cancer (MTC) or advanced renal cell carcinoma (RCC) that has been treated previously with anti-angiogenic therapy using the cabozantinib acesulfamate salt.Type: GrantFiled: March 29, 2023Date of Patent: November 14, 2023Assignee: Apotex Inc.Inventors: Fabio E. S. Souza, Alexander J. Stirk, Avedis Karadeolian, Allan W. Rey
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Publication number: 20230279036Abstract: The present invention provides novel salts of remdesivir and crystalline forms thereof. Specific salts of remdesivir provided by the present invention include napsylate, tosylate, hydrochloride, phosphate, maleate, and oxalate. Also provided are pharmaceutical compositions including the remdesivir salts and crystalline forms thereof, the use of these salts in the treatment of a viral infection, and methods of treating viral infections using the same, and in particular, a viral infection caused by Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2).Type: ApplicationFiled: July 20, 2021Publication date: September 7, 2023Inventors: Fabio E.S. Souza, Fatemeh Mohammadpourmir, Alexander J. Stirk, Avedis Karadeolian, Allan W. Rey
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Patent number: 11667656Abstract: The present invention provides novel crystalline forms of tenofovir alafenamide comprising tenofovir alafenamide and two different pharmaceutically acceptable acids, compositions and processes for the preparation thereof, and their use in the treatment of a human immunodeficiency virus (HIV) infection or a hepatitis B virus (HBV) infection.Type: GrantFiled: January 27, 2021Date of Patent: June 6, 2023Assignee: Apotex Inc.Inventors: Fabio E. S. Souza, Avedis Karadeolian, Alexander J. Stirk
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Patent number: 11661396Abstract: The present invention provides novel crystalline forms of zuclomiphene citrate. Specific crystalline forms provided by the present invention include zuclomiphene citrate Forms APO-I, APO-II, APO-III, and APO-IV. Also provided are pharmaceutical compositions including the zuclomiphene citrate crystalline forms, processes for the preparation thereof and the use of these forms in the treatment of a disorder selected from the group including osteoporosis, bone fractures, loss of bone mineral density (BMD) and hot flashes in a subject suffering therefrom.Type: GrantFiled: January 21, 2021Date of Patent: May 30, 2023Assignee: Apotex Inc.Inventors: Fabio E. S. Souza, Mohammed Abdul Raheem, Yajun Zhao, Siva Ramarao Kakani, Minh T. N. Nguyen, Alexander J. Stirk, Allan W. Rey, Stuart P. Green
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Publication number: 20230093124Abstract: Provided are novel salts of nintedanib and crystalline forms thereof. Specific salts of nintedanib provided by the present invention include glutarate, hippurate, levulinate, acesulfamate, diacesulfamate, and saccharinate. Also provided are pharmaceutical compositions including the nintedanib salts and crystalline forms thereof, and the use of these salts in the treatment or prevention of fibrotic diseases selected from the group including idiopathic pulmonary fibrosis, chronic fibrosing interstitial lung disease with a progressive phenotype, and systemic sclerosis-associated interstitial lung disease.Type: ApplicationFiled: September 19, 2022Publication date: March 23, 2023Inventors: Fabio E. S. Souza, Alexander J. Stirk, Avedis Karadeolian, Fatemeh Mohammadpourmir, Allan W. Rey
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Patent number: 11440871Abstract: The present invention provides zuclomiphene salts, zuclomiphene binaphthyl hydrogen phosphate salt (1-A)·(BPA) and zuclomiphene oxalate salt (1-A)·(OXL), crystalline forms thereof and processes for the preparation thereof.Type: GrantFiled: November 11, 2020Date of Patent: September 13, 2022Assignee: Apotex Inc.Inventors: Mohammed Abdul Raheem, Siva Ramarao Kakani, Minh T. N. Nguyen, Yajun Zhao, Stuart P. Green, Fabio E. S. Souza, Alexander J. Stirk, Fatemeh Mohammadpourmir
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Publication number: 20220235079Abstract: The present invention provides novel crystalline forms of tenofovir alafenamide comprising tenofovir alafenamide and two different pharmaceutically acceptable acids, compositions and processes for the preparation thereof, and their use in the treatment of a human immunodeficiency virus (HIV) infection or a hepatitis B virus (HBV) infection.Type: ApplicationFiled: January 27, 2021Publication date: July 28, 2022Inventors: Fabio E. S. Souza, Avedis Karadeolian, Alexander J. Stirk
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Patent number: 11377456Abstract: The present invention provides a novel crystalline form of remdesivir, remdesivir Form APO-I, including remdesivir and dimethyl sulfoxide, compositions and processes for the preparation thereof, the use of this crystalline form in the treatment of a viral infection, and methods of treating viral infections using the same, and in particular, a viral infection caused by Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2).Type: GrantFiled: May 25, 2021Date of Patent: July 5, 2022Assignee: Apotex Inc.Inventors: Fabio E. S. Souza, Alexander J. Stirk, Allan W. Rey
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Publication number: 20220144866Abstract: The present invention provides a novel crystalline form of remdesivir, remdesivir Form APO-I, including remdesivir and dimethyl sulfoxide, compositions and processes for the preparation thereof, the use of this crystalline form in the treatment of a viral infection, and methods of treating viral infections using the same, and in particular, a viral infection caused byType: ApplicationFiled: May 25, 2021Publication date: May 12, 2022Inventors: Fabio E. S. Souza, Alexander J. Stirk, Allan W. Rey
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Patent number: 11236066Abstract: The present invention provides novel crystalline forms of niraparib tosylate. Specific crystalline forms provided by the present invention include niraparib tosylate Form APO-I, a co-crystal of niraparib tosylate and urea, and niraparib tosylate Form APO-II, a co-crystal of niraparib tosylate and oxalic acid. Also provided are pharmaceutical compositions including the niraparib tosylate crystalline forms, and the use of these forms in treatment or prevention of conditions which can be ameliorated by the inhibition of poly(ADP-ribose) polymerase (PARP), in particular certain forms of cancer.Type: GrantFiled: July 14, 2020Date of Patent: February 1, 2022Assignee: Apotex Inc.Inventors: Alexander J. Stirk, Fabio E. S. Souza, Avedis Karadeolian, Allan W. Rey
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Publication number: 20210292272Abstract: The present invention provides salts of zuclomiphene and crystalline forms thereof. Specific salts of zuclomiphene provided by the present invention include sulphate, phosphate, succinate, L-tartrate, tosylate, L-malate, maleate, malonate, fumarate, glycolate, and hemi-citrate. Also provided are pharmaceutical compositions including the zuclomiphene salts and crystalline forms thereof and the use of these salts in the treatment of a disorder selected from the group including osteoporosis, bone fractures, loss of bone mineral density (BMD) and hot flashes in a subject suffering therefrom.Type: ApplicationFiled: March 19, 2021Publication date: September 23, 2021Inventors: Fabio E. S. Souza, Fatemeh Mohammadpourmir, Alexander J. Stirk, Avedis Karadeolian, Allan W. Rey
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Publication number: 20210221767Abstract: The present invention provides novel crystalline forms of zuclomiphene citrate. Specific crystalline forms provided by the present invention include zuclomiphene citrate Forms APO-I, APO-II, APO-III, and APO-IV. Also provided are pharmaceutical compositions including the zuclomiphene citrate crystalline forms, processes for the preparation thereof and the use of these forms in the treatment of a disorder selected from the group including osteoporosis, bone fractures, loss of bone mineral density (BMD) and hot flashes in a subject suffering therefrom.Type: ApplicationFiled: January 21, 2021Publication date: July 22, 2021Inventors: Fabio E. S. Souza, Mohammed Abdul Raheem, Yajun Zhao, Siva Ramarao Kakani, Minh T. N. Nguyen, Alexander J. Stirk, Allan W. Rey, Stuart P. Green
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Publication number: 20210147338Abstract: The present invention provides zuclomiphene salts, zuclomiphene binaphthyl hydrogen phosphate salt (1-A)?(BPA) and zuclomiphene oxalate salt (1-A)?(OXL), crystalline forms thereof and processes for the preparation thereof.Type: ApplicationFiled: November 11, 2020Publication date: May 20, 2021Inventors: Mohammed Abdul Raheem, Siva Ramarao Kakani, Minh T. N. Nguyen, Yajun Zhao, Stuart P. Green, Fabio E.S. Souza, Alexander J. Stirk, Fatemeh Mohammadpourmir
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Publication number: 20210017151Abstract: The present invention provides novel crystalline forms of niraparib tosylate. Specific crystalline forms provided by the present invention include niraparib tosylate Form APO-I, a co-crystal of niraparib tosylate and urea, and niraparib tosylate Form APO-II, a co-crystal of niraparib tosylate and oxalic acid. Also provided are pharmaceutical compositions including the niraparib tosylate crystalline forms, and the use of these forms in treatment or prevention of conditions which can be ameliorated by the inhibition of poly(ADP-ribose) polymerase (PARP), in particular certain forms of cancer.Type: ApplicationFiled: July 14, 2020Publication date: January 21, 2021Inventors: Alexander J. Stirk, Fabio E. S. Souza, Avedis Karadeolian, Allan W. Rey