Abstract: Pharmaceutical compositions comprising an immediate release component comprising 4-((L-valyl)oxy)butanoic acid and a modified release component comprising 4-((L-valyl)oxy)butanoic acid and the pharmacokinetics of 4-((L-valyl)oxy)butanoic acid and ?-hydroxybutyrate following oral administration of the pharmaceutical compositions is disclosed.
Type:
Grant
Filed:
January 25, 2024
Date of Patent:
July 28, 2026
Assignee:
XWPharma Ltd.
Inventors:
Daniel M. Canafax, William W. Xiang, Leonard Blum, Jia-Ning Xiang
Abstract: The present disclosure is directed synthetic methods for the preparation of 4-valyloxybutyric acid. The synthetic methods described herein employ a diverse array of protecting group strategies and reaction conditions. Additionally, the present disclosure is directed to compounds useful as synthetic intermediates in the preparation of 4-valyloxybutyric acid.
Type:
Grant
Filed:
May 29, 2024
Date of Patent:
April 28, 2026
Assignee:
XWPharma Ltd.
Inventors:
Jia-Ning Xiang, Hao-Wei Shih, Xiaoming Wu, Xuan Zhang, James Tien
Abstract: Pharmaceutical granulations having a functional coating surrounding a core containing 4-((L-valyl)oxy)butanoic acid are disclosed. The functional coatings provide for immediate release or modified release of 4-((L-valyl)oxy)butanoic acid. The pharmaceutical granulations can be used in oral pharmaceutical compositions.
Type:
Grant
Filed:
January 24, 2024
Date of Patent:
August 26, 2025
Assignee:
XWPHARMA LTD.
Inventors:
Sami Karaborni, Daniel M. Canafax, Jia-Ning Xiang, William W. Xiang, James Tien, Stefanie Thiel, Norbert Pollinger, Annette Grave
Abstract: Pharmaceutical compositions of ketamine derivatives and oral dosage forms comprising the pharmaceutical compositions are disclosed. Solid oral dosage forms prepared from the pharmaceutical compositions exhibit a zero-order release profile.
Type:
Grant
Filed:
May 17, 2023
Date of Patent:
August 26, 2025
Assignee:
XWPHARMA LTD.
Inventors:
Sami Karaborni, Daniel M. Canafax, William W. Xiang, Jia-Ning Xiang
Abstract: Pharmaceutical granulations having a functional coating surrounding a core containing a water-soluble active pharmaceutical ingredient are disclosed. The functional coating provides for immediate release or controlled release of the active pharmaceutical ingredient. The pharmaceutical granulations can be used in oral pharmaceutical compositions.
Type:
Grant
Filed:
March 4, 2022
Date of Patent:
June 24, 2025
Assignee:
XWPHARMA LTD.
Inventors:
Sami Karaborni, Daniel M. Canafax, Jia-Ning Xiang, William W. Xiang, James Tien, Nicolas D. Kirkland
Abstract: Nuclear transport modulators are disclosed. The compounds can inhibit nuclear transporters such as the exportin-1 transporter. The compounds and pharmaceutical compositions comprising the compounds can be used to treat neurological diseases and cancer.
Type:
Grant
Filed:
May 18, 2023
Date of Patent:
February 25, 2025
Assignee:
XWPHARMA LTD.
Inventors:
Jia-Ning Xiang, Zude Qi, Xianbo Liu, Dezheng Ning
Abstract: Ketamine derivatives and pharmaceutical compositions thereof are disclosed. When administered orally the ketamine derivatives provide increased bioavailability of ketamine in the systemic circulation. The ketamine derivatives can be used to treat neurological diseases, psychological diseases and pain.
Type:
Grant
Filed:
August 1, 2022
Date of Patent:
January 28, 2025
Assignee:
XWPHARMA LTD.
Inventors:
Jia-Ning Xiang, Xuesong Xu, Hao-Wei Shih, Wai-Si Eng
Abstract: The present invention relates compounds of Formula (A) as H3R antagonists, as well as their preparation and uses, and further relates pharmaceutical compositions comprising these compounds and their uses as modulators of Histamine 3 Receptor (H3R) functions. The present invention also relates to the uses of the compounds or pharmaceutical compositions in treating or preventing certain disorders and diseases which relate to H3R functions in humans.
Type:
Grant
Filed:
July 18, 2022
Date of Patent:
December 24, 2024
Assignee:
XWPHARMA LTD.
Inventors:
Jia-Ning Xiang, Xuesong Xu, Yi Feng, Wai-Si Eng
Abstract: The present disclosure is directed synthetic methods for the preparation of 4-valyloxybutyric acid. The synthetic methods described herein employ a diverse array of protecting group strategies and reaction conditions. Additionally, the present disclosure is directed to compounds useful as synthetic intermediates in the preparation of 4-valyloxybutyric acid.
Type:
Grant
Filed:
July 12, 2023
Date of Patent:
July 9, 2024
Assignee:
XWPHARMA LTD.
Inventors:
Jia-Ning Xiang, Hao-Wei Shih, Xiaoming Wu, Xuan Zhang, James Tien
Abstract: Pharmaceutical compositions comprising an immediate release component comprising 4-((L-valyl)oxy)butanoic acid and a modified release component comprising 4-((L-valyl)oxy)butanoic acid and the pharmacokinetics of 4-((L-valyl)oxy)butanoic acid and ?-hydroxybutyrate following oral administration of the pharmaceutical compositions is disclosed.
Type:
Grant
Filed:
October 26, 2022
Date of Patent:
April 2, 2024
Assignee:
XWPHARMA LTD.
Inventors:
Daniel M. Canafax, William W. Xiang, Leonard Blum, Jia-Ning Xiang
Abstract: Pharmaceutical granulations having a functional coating surrounding a core containing 4-((L-valyl)oxy)butanoic acid are disclosed. The functional coatings provide for immediate release or modified release of 4-((L-valyl)oxy)butanoic acid. The pharmaceutical granulations can be used in oral pharmaceutical compositions.
Type:
Grant
Filed:
June 17, 2022
Date of Patent:
March 12, 2024
Assignee:
XWPHARMA LTD.
Inventors:
Sami Karaborni, Daniel M. Canafax, Jia-Ning Xiang, William W. Xiang, James Tien, Stefanie Thiel, Norbert Pollinger, Annette Grave
Abstract: The present invention relates compounds of Formula (A) as NK-1 receptor antagonists, as well as their preparation and uses, and further relates pharmaceutical compositions comprising these compounds and their uses as modulators of dysfunctional glutamate transmission. The present invention also relates to the uses of the compounds or pharmaceutical compositions in treating or preventing certain disorders and diseases which relate to NK-1 receptor in humans. More specifically, the compounds and/or pharmaceutical compositions of the present invention are believed to potentially offer therapeutic benefits to patients who suffer, among others, chemotherapy-induced nausea and vomit (CINV) and/or post-operative nausea and vomit (PONV).
Type:
Grant
Filed:
September 15, 2021
Date of Patent:
February 20, 2024
Assignee:
XWPHARMA LTD.
Inventors:
Jia-Ning Xiang, Xuesong Xu, Yi Feng, Xianbo Liu, Wai-Si Eng
Abstract: Pharmaceutical compositions of 4-((L-valyl)oxy)butanoic acid and the pharmacokinetics of 4-((L-valyl)oxy)butanoic acid and ?-hydroxybutyric acid following oral administration of the pharmaceutical compositions to healthy subjects are disclosed.
Type:
Grant
Filed:
July 22, 2021
Date of Patent:
February 13, 2024
Assignee:
XWPHARMA LTD.
Inventors:
William W. Xiang, Jia-Ning Xiang, Daniel M. Canafax
Abstract: Nuclear transport modulators are disclosed. The compounds can inhibit nuclear transporters such as the exportin-1 transporter. The compounds and pharmaceutical compositions comprising the compounds can be used to treat neurological diseases and cancer.
Type:
Grant
Filed:
December 4, 2020
Date of Patent:
September 26, 2023
Assignee:
XWPHARMA LTD.
Inventors:
Jia-Ning Xiang, Zude Qi, Xianbo Liu, Dezheng Ning
Abstract: The present disclosure is directed synthetic methods for the preparation of 4-valyloxybutyric acid. The synthetic methods described herein employ a diverse array of protecting group strategies and reaction conditions. Additionally, the present disclosure is directed to compounds useful as synthetic intermediates in the preparation of 4-valyloxybutyric acid.
Type:
Grant
Filed:
February 16, 2022
Date of Patent:
September 5, 2023
Assignee:
XWPHARMA LTD.
Inventors:
Jia-Ning Xiang, Hao-Wei Shih, Xiaoming Wu, Xuan Zhang, James Tien
Abstract: Pharmaceutical compositions of ketamine derivatives and oral dosage forms comprising the pharmaceutical compositions are disclosed. Solid oral dosage forms prepared from the pharmaceutical compositions exhibit a zero-order release profile.
Type:
Grant
Filed:
August 12, 2022
Date of Patent:
July 4, 2023
Assignee:
XWPHARMA LTD.
Inventors:
Sami Karaborni, Daniel M. Canafax, William W. Xiang, Jia-Ning Xiang
Abstract: Compounds of Formula (I)a or (I)b: including certain quinone derivatives, and the corresponding pharmaceutical compositions, which may serve to modulate ferroptosis in a subject. Also disclosed herein are the preparations of these compounds and pharmaceutical compositions and their potential uses in the manufacture of a medicament in reducing reactive oxygen species (ROS) in a cell and for preventing, treating, ameliorating certain related disorder or a disease.
Type:
Grant
Filed:
November 2, 2020
Date of Patent:
July 4, 2023
Assignee:
XWPHARMA LTD.
Inventors:
Jia-Ning Xiang, Zude Qi, Dezheng Ning, Xianbo Liu
Abstract: The present invention relates compounds of Formula (A), as well as their preparation and uses, and further relates pharmaceutical compositions comprising these compounds and their uses as modulators of dysfunctional glutamate transmission. The present invention also relates to uses of the compounds or pharmaceutical compositions in treating or preventing certain neurological and psychiatric disorders and diseases as well as cancer in humans.
Abstract: Pharmaceutical compositions comprising an immediate release component comprising 4-((L-valyl)oxy)butanoic acid and a modified release component comprising 4-((L-valyl)oxy)butanoic acid and the pharmacokinetics of 4-((L-valyl)oxy)butanoic acid and ?-hydroxybutyrate following oral administration of the pharmaceutical compositions is disclosed.
Type:
Grant
Filed:
March 18, 2022
Date of Patent:
November 29, 2022
Assignee:
XWPHARMA LTD.
Inventors:
Daniel M. Canafax, William W. Xiang, Leonard Blum, Jia-Ning Xiang
Abstract: Ketamine derivatives and pharmaceutical compositions thereof are disclosed. When administered orally the ketamine derivatives provide increased bioavailability of ketamine in the systemic circulation. The ketamine derivatives can be used to treat neurological diseases, psychological diseases and pain.
Type:
Grant
Filed:
October 12, 2020
Date of Patent:
September 13, 2022
Assignee:
XWPHARMA LTD.
Inventors:
Jia-Ning Xiang, Xuesong Xu, Hao-Wei Shih, Wai-Si Eng