Patents by Inventor Zheng Xin Dong

Zheng Xin Dong 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).

  • Publication number: 20130210751
    Abstract: The present invention relates to improvements in compositions containing peptides that are ligands of the GHS receptor, or pharmaceutically acceptable salts thereof, methods for preparing such compositions, and methods of using such compositions to treat mammals. In particular, the present invention relates to a pharmaceutical composition comprising a pamoate salt of H-Inp-D-Bal-D-Trp-Phe-Apc-NH2, which is a ligand of the GHS receptor and in which, after subcutaneous or intramuscular administration to a subject, the peptide forms an in situ depot at physiological pH that is slowly dissolved and released into the body fluid and bloodstream. The present invention may further comprise an organic component such as dimethylacetamide (DMA) or polyethylene glycol with an average molecular weight of lower than 1000.
    Type: Application
    Filed: March 14, 2011
    Publication date: August 15, 2013
    Applicant: IPSEN Pharma, S.A.S.
    Inventors: Zheng Xin Dong, Jundong Zhang
  • Patent number: 8450266
    Abstract: There is provided a novel series of analogues of glucose-dependent insulinotropic polypeptide compounds, pharmaceutical compositions containing said compounds, and the use of said compounds as GIP-receptor agonists or antagonists for treatment of GIP-receptor mediated conditions, such as non-insulin dependent diabetes mellitus and obesity.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: May 28, 2013
    Assignee: Ipsen Pharma S.A.S.
    Inventors: Zheng Xin Dong, Yeelana Shen, Daniel B. DeOliveira
  • Patent number: 8440611
    Abstract: The present invention relates to novel analogues of neuropeptide Y, pharmaceutical compositions containing the same, pharmaceutical formulations containing the same, and method of treating diseases or conditions mediated by neuropeptide Y-receptor binding. More particularly, the present invention relates to novel analogues of neuropeptide Y having at least one unnatural amino acid substitution, such as 4Hyp at position 34 , that selectively bind to the neuropeptide Y1 receptor subtype compared to the neuropeptide Y2 receptor subtype.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: May 14, 2013
    Assignee: Ipsen Pharma S.A.S.
    Inventors: Zheng Xin Dong, Kevin Zhou, Daniel B. Deoliveira
  • Patent number: 8404804
    Abstract: The present invention relates to methods and intermediates for chemical synthesis of polypeptides and proteins, and more particularly to methods and intermediates for chemically ligating a peptide fragment containing N-terminal N-methyl-cysteine (SEQ ID NO: 1) with another peptide fragment having C-terminal thioester to generate a ?-(methylamino)-thioester intermediate that spontaneously rearranges to form an amide bond. Furthermore, the invention relates to methods of converting N-methyl-thiazolidine to N-methyl-cysteine (SEQ ID NO: 1) of polypeptides and proteins. The invention also relates to methods of synthesizing peptide-thioester from peptide-acid fluoride.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: March 26, 2013
    Assignee: Ipsen Pharma S.A.S.
    Inventors: Zheng Xin Dong, John S. Eynon
  • Patent number: 8377865
    Abstract: Disclosed are peptide and peptidomimetic compounds generally according to formula (I), and pharmaceutically acceptable salts thereof, that are useful as GHRP analogs: R1-A1-A2-A3-A4-A5-R2 (I) or a pharmaceutically acceptable salt thereof, wherein: A1 is Aib, Apc or Inp; A2 is D-Bal, D-Bip, D-Bpa, D-Dip, D-1Nal, D-2Nal, D-Ser(Bzl), or D-Trp; A3 is D-Bal, D-Bip, D-Bpa, D-Dip, D-1Nal, D-2Nal, D-Ser(Bzl), or D-Trp; A4 is 2Fua, Orn, 2Pal, 3Pal, 4Pal, Pff, Phe, Pim, Taz, 2Thi, 3Thi, Thr(Bzl); A5 is Apc, Dab, Dap, Lys, Orn, or deleted; R1 is hydrogen, (C1-6)alkyl, (C5-14)aryl, (C1-6)alkyl(C5-14)aryl, (C3-8)cycloakyl, or (C2-10)acyl; and R2 is OH or NH2; and pharmaceutical compositions and methods of use thereof.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: February 19, 2013
    Assignee: IPSEN Pharma S.A.S.
    Inventor: Zheng Xin Dong
  • Publication number: 20130030148
    Abstract: The present invention relates to a process for the large-scale synthesis of (Aib8,35)hGLP-1(7-36)-NH2 (SEQ ED NO:2), i.e., His-Aib-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gb-Ala-Ala-Lys-Glu-Phe-Ile-Ala-Trp-Leu-Val-Lys-Aib-Arg-NH2 (SEQ ID NO:2), which comprises solid-phase Fmoc-chemistry.
    Type: Application
    Filed: September 22, 2009
    Publication date: January 31, 2013
    Inventors: Zheng Xin Dong, Thomas Ciaran Loughman, Fionn Hurley, Steven R. Johnson
  • Patent number: 8349797
    Abstract: The present invention is directed to a compound according to formula, (R2R3)-B1-A1-c(A2-A3-A4-A5-A6-A7-A8-A9)-A10-A11-A12-A13-B2-B3-R1, that act as ligands for one or more of the melanocortin receptors, the pharmaceutically-acceptable salts thereof, to methods of using such peptides to treat mammals and to pharmaceutical compositions useful therefore comprising said peptides.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: January 8, 2013
    Assignee: IPSEN Pharma S.A.S.
    Inventors: Zheng Xin Dong, Jacques-Pierre Moreau
  • Patent number: 8324386
    Abstract: Disclosed is a series of somatostatin-dopamine chimeric analogs which retain both somatostatin and dopamine activity in vivo. An example is: 6-n-propyl-8?-ergolinglmethylthioacetyl-D-Phe-c(Cys-Tyr-D-Trp-Lys-Abu-Cys)-Thr-NH2.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: December 4, 2012
    Assignee: IPSEN Pharma S.A.S.
    Inventors: Michael D. Culler, Zheng Xin Dong, Sun H. Kim, Jacques-Pierre Moreau
  • Publication number: 20120277151
    Abstract: The present invention is directed to peptide analogues of glucagon-like peptide-1, the pharmaceutically-acceptable salts thereof, to methods of using such analogues to treat mammals and to pharmaceutical compositions useful therefore comprising said analogues.
    Type: Application
    Filed: July 9, 2012
    Publication date: November 1, 2012
    Applicant: IPSEN PHARMA S.A.S.
    Inventors: Resurreccion ALLOZA MIRAVETE, Roland CHERIF-CHEIKH, Jose-Antonio CORDERO RIGOL, Zheng Xin DONG, Frederic LACOMBE, Maria Dolores TOBALINA MAESTRE
  • Patent number: 8299022
    Abstract: The invention comprises peptidyl analogs of ghrelin having greater stability which are active at the GHS receptor according to formulae depicted below: (R2)-A1-A2-A3-A4-A5-A6-A7-A8-A9-A10-A11-A12-A13-A14-A15-A16-A17-A18-A19-A20-A21-A22-A23-A24-A25-A26-A27-A28-R1 wherein the definitions of A1 to A28, R1 and R2 are provided for in the specification, with the exception that the N-terminal amino acid must be selected from the group consisting of Inp, 1-Apc and 4-Apc, the pharmaceutically acceptable salts thereof and pharmaceutical compositions comprising an effective amount of said compound together with therapeutic and non-therapeutic uses thereof.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: October 30, 2012
    Assignee: IPSEN Pharma S.A.S.
    Inventor: Zheng Xin Dong
  • Publication number: 20120225816
    Abstract: The present invention relates to improvements in compositions containing peptides that are ligands of one or more of the melanocortin receptors (MC-R), or pharmaceutically acceptable salts thereof, methods for preparing such compositions, and method of using such compositions to treat mammals. In particular, the present invention relates to a pharmaceutical composition comprising a pamoate salt of Ac-Arg-cyclo(Cys-D-Ala-His-D-Phe-Arg-Trp-Cys)-NH2 which is a ligand of the melanocortin receptor subtype 4 (MC4-R), and in which, after subcutaneous or intramuscular administration to a subject, the peptide forms a depot at physiological pH that is slowly dissolved and released into the body fluid and bloodstream. The present invention may further comprise an organic component such as dimethylacetamide (DMA) or polyethylene glycol (PEG) with an average molecular weight of lower than 1000.
    Type: Application
    Filed: November 15, 2010
    Publication date: September 6, 2012
    Applicant: IPSEN PHARMA, S.A.S.
    Inventors: Zheng Xin Dong, Jundong Zhang
  • Publication number: 20120226018
    Abstract: The present invention relates to a novel process for the synthesis of the melanocortin analog, Ac-Arg-cyclo(Cys-D-Ala-His-D-Phe-Arg-Trp-Cys)-NH2, using solution-phase peptide chemistry.
    Type: Application
    Filed: November 15, 2010
    Publication date: September 6, 2012
    Applicant: IPSEN PHARMA, S.A.S.
    Inventor: Zheng Xin Dong
  • Patent number: 8258094
    Abstract: The invention comprises peptidyl analogs according to formulae (I) or (II) as depicted below: (R2R3)-A1-A2-A3-A4-A5-A6-A7-A8-A9-A10-A11-A12-A13- A14-A15-A16-A17-A18-A19-A20-A21-A22-A23-A24-A25- A-26-A27-A28-R1 wherein the definitions of A1 to A28 and R1 to R3 are provided for in the specification for each of formulae (I) and (II), pharmaceutically acceptable salts thereof and pharmaceutical compositions comprising an effective amount of a compound of formula (I), that possess agonist or antagonist ghrelin activity, along with therapeutic and non-therapeutic uses thereof.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: September 4, 2012
    Assignee: IPSEN Pharma S.A.S.
    Inventors: Zheng Xin Dong, Michael DeWitt Culler, Yeelana Shen, Jeanne Mary Comstock
  • Patent number: 8236759
    Abstract: The present invention is directed to peptide analogues of glucagon-like peptide-1, the pharmaceutically-acceptable salts thereof, to methods of using such analogues to treat mammals and to pharmaceutical compositions useful therefore comprising said analogues.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: August 7, 2012
    Assignee: Ipsen Pharma SAS
    Inventors: Zheng Xin Dong, Roland Cherif-Cheikh, Resurreccion Alloza Miravete, Jose-Antonio Cordero Rigol, Frederic Lacombe, Maria Dolores Tobalina Maestre
  • Patent number: 8236762
    Abstract: The invention features targeted cytotoxic compounds and methods relating to their therapeutic use for the treatment of neoplasia and other conditions.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: August 7, 2012
    Assignee: IPSEN Pharma S.A.S.
    Inventors: Zheng Xin Dong, Yeelana Shen, Michael DeWitt Culler, Christophe Alain Thurieau, Jundong Zhang, Sun Hyuk Kim
  • Publication number: 20120190616
    Abstract: The present invention relates to novel analogues of insulin-like growth factor-1 (IGF-1), pharmaceutical compositions containing said analogues, and the use of said analogues for treatment of IGF-1-receptor mediated conditions, such as short stature, diabetes therapy, neurodegenerative disease treatment, and cartilage repair. More particularly, the present invention relates to novel analogues of IGF-1 having an amino acid substitution at position 59, e.g., (Asn59)hIGF-1(1-70)-OH (SEQ ID NO:1), and other substitution(s) as defined herein.
    Type: Application
    Filed: July 22, 2010
    Publication date: July 26, 2012
    Applicant: IPSEN PHARMA S.A.S.
    Inventors: Zheng Xin Dong, Nicholas C. Prairie, Maria L. Ufret, Jundong Zhang, Deborah M. Rothman, Jeanne Mary Comstock
  • Publication number: 20120129767
    Abstract: A method and pharmaceutical composition for inhibiting the effect of glucocorticoids, particularly dexamethasone, which suppress growth hormone secretion, by administering ghrelin or a ghrelin analogue, for example, [Aib2, Glu3(NH-hexyl)]hGhrelin(1-28)-NH2 (SEQ ID NO:2) or other suitable ghrelin agonist, to counteract the catabolic effects of said dexamethasone and other natural glucocorticoids.
    Type: Application
    Filed: November 2, 2011
    Publication date: May 24, 2012
    Inventors: Giovanni Tulipano, Andrea Giustina, Zheng Xin Dong, Michael DeWitt Culler
  • Patent number: 8178651
    Abstract: Disclosed is a series of somatostatin-dopamine chimeric analogs which retain both somatostatin and dopamine activity in vivo. An example is: 6-n-propyl-8?-ergolinglmethylthioacetyl-D-Phe-c(Cys-Tyr-D-Trp-Lys-Abu-Cys)-Thr-NH2.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: May 15, 2012
    Assignee: IPSEN Pharma, S.A.S.
    Inventors: Michael D. Culler, Zheng Xin Dong, Sun H. Kim, Jacques-Pierre Moreau
  • Patent number: 8138218
    Abstract: A family of peptides and peptidomimetic compounds useful as GHS analogs according to either formula (I) or (II) as depicted below: or a pharmaceutically acceptable salts thereof, wherein the variables are as defined in the specification.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: March 20, 2012
    Assignee: Ipsen Pharma S.A.S.
    Inventors: Zheng Xin Dong, John S. Eynon, Yeelana Shen
  • Patent number: 8138305
    Abstract: The present invention is directed to peptide analogues of glucagon-like peptide-1, the pharmaceutically-acceptable salts thereof, to methods of using such analogues to treat mammals and to pharmaceutical compositions useful therefore comprising said analogues.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: March 20, 2012
    Assignee: Ipsen Pharma S.A.S.
    Inventor: Zheng Xin Dong