Patents by Inventor Kondareddiar Ramalingam

Kondareddiar Ramalingam 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).

  • Patent number: 8263739
    Abstract: The present invention provides compounds for targeting endothelial cells, tumor cells or other cells that express the NP-1 receptor, compositions containing the same and methods for their use. Additionally, the present invention includes diagnostic, therapeutic and radiotherapeutic compositions useful for visualization, therapy or radiotherapy.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: September 11, 2012
    Assignee: Bracco Suisse SA
    Inventors: Mathew A. Von Wronski, Edmund R. Marinelli, Adrian Nunn, Radhakrishna Pillai, Kondareddiar Ramalingam, Michael F. Tweedle, Karen E. Linder, Palaniappa Nanjappan, Natarajan Raju
  • Publication number: 20120178906
    Abstract: A method is disclosed for the syntheses of thiol-containing radiopharmaceuticals without the need for purification starting from chelators containing disulfide bonds. This is done by providing a method that reduces disulfide bonds on a precursor molecule or a precursor compound in the presence of phosphine compounds, thus freeing thiols for metal complexation.
    Type: Application
    Filed: March 19, 2012
    Publication date: July 12, 2012
    Applicant: BRACCO IMAGING S.P.A.
    Inventors: Aldo Cagnolini, Karen E. Linder, Kondareddiar Ramalingam, Hong (Helen) Fan
  • Publication number: 20120045393
    Abstract: The invention is directed to analogs of LHRH-II and, more generally, to analogs of the LHRH family in which modifications have been made that confer enhanced binding affinity for LHRH receptors and/or improved metabolic stability. The invention is further directed to methods of targeted therapy and targeted imaging in patients with sex-hormone-related cancers or other LHRH-mediated diseases.
    Type: Application
    Filed: March 16, 2010
    Publication date: February 23, 2012
    Inventors: Karen E. Linder, Palaniappa Nanjappan, Natarajan Raju, Sudha Khurana, Rolf E. Swenson, Adrian D. Nunn, Kondareddiar Ramalingam
  • Patent number: 8105567
    Abstract: Compounds of the formula: Wherein R is selected from the group consisting of H, NH2, and NHBoc; and R? is selected from the group consisting of H, CH2Ph and tBu, optionally de-protected. Such compounds may be conjugated with a suitable molecule able to interact with physiological systems; and their chelates with bi-trivalent ions of the metal elements having atomic number ranging between 20 and 31, 39, 42, 43, 44, 49, and between 57 and 83, and radioisotopes chosen among 203Pb, 67Ga, 68Ga, 72As, 111In, 113In, 90Y, 97Ru, 62Cu, 64Cu, 52Fe, 52mMn, 140La, 175Yb, 153Sm, 166Ho, 149Pm, 177Lu, 142Pr, 159Gd, 212Bi, 47Sc, 149Pm, 67Cu, 111Ag, 199Au, 161Tb, 51Cr, 167Tm, 141Ce, 168Yb, 88Y, 165Dy, 166Dy, 97Ru, 103Ru, 186Re, 188Re, 99mTc, 211Bi, 212Bi, 213Bi, 214Bi, 105Rh, 109Pd, 117mSn, 177Sn and 199Au, as well as the salts thereof with physiologically compatible bases or acids.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: January 31, 2012
    Assignee: Bracco Imaging SpA
    Inventors: Kondareddiar Ramalingam, Rolf E. Swenson
  • Publication number: 20120009122
    Abstract: New and improved compounds for use in diagnostic imaging or therapy having the formula M-N—O—P-G, wherein M is a metal chelator having the structure: wherein R1-R5 and FG are as defined herein (in the form complexed with a metal radionuclide or not), N—O—P is the linker containing at least one non-alpha amino acid with a cyclic group, at least one substituted bile acid or at least one non-alpha amino acid, and G is the GRP receptor targeting peptide. In the preferred embodiment, M is an Aazta metal chelator or a derivative thereof. Methods for imaging a patient and/or providing radiotherapy or phototherapy to a patient using the compounds of the invention are also provided. Methods and kits for preparing a diagnostic imaging agent from the compound is further provided. Methods and kits for preparing a radiotherapeutic agent are further provided.
    Type: Application
    Filed: December 2, 2010
    Publication date: January 12, 2012
    Applicant: BRACCO IMAGING S.P.A.
    Inventors: Enrico Cappelletti, Luciano Lattuada, Karen E. Linder, Edmund Marinelli, Palaniappa Nanjappan, Adrian D. Nunn, Natarajan Raju, Kondareddiar Ramalingam, Rolf E. Swenson, Michael F. Tweedle
  • Publication number: 20110286929
    Abstract: The invention provides compositions and methods for therapeutic and diagnostic applications.
    Type: Application
    Filed: December 20, 2010
    Publication date: November 24, 2011
    Inventors: Hong Fan, Karen E. Linder, Edmund R. Marinelli, Palaniappa Nanjappan, Adrian D. Nunn, Radhakrishna K. Pillai, Kondareddiar Ramalingam, Ajay Shrivastava, Bo Song, Rolf E. Swenson, Mathew A. Von Wronski, Aaron K. Sato, Sharon Michele Walker, Daniel T. Dransfield
  • Publication number: 20110262366
    Abstract: The present invention provides compounds for targeting endothelial cells, tumor cells or other cells that express the NP-1 receptor, compositions containing the same and methods for their use. Additionally, the present invention includes diagnostic, therapeutic and radiotherapeutic compositions useful for visualization, therapy or radiotherapy.
    Type: Application
    Filed: December 15, 2010
    Publication date: October 27, 2011
    Applicant: BRACCO INTERNATIONAL B.V.
    Inventors: Mathew A. Von Wronski, Edmund R. Marinelli, Adrian D. Nunn, Radhakrishna K. Pillai, Kondareddiar Ramalingam, Michael F. Tweedle, Karen E. Linder, Palaniappa Nanjappan, Natarajan Raju, Feng Yan, Michel Schneider
  • Publication number: 20110256067
    Abstract: The present invention relates to a novel class of paramagnetic ion-based contrast agents of formula (I), wherein a chelating backbone moiety is highly functionalized by the presence of one or more polyhydroxylated chain, that show a pharmacokinetic profile analogous to that of the commonly used T1-general extravascular agents (NSA) but are further characterized by a higher relaxivity.
    Type: Application
    Filed: June 28, 2005
    Publication date: October 20, 2011
    Applicant: Bracco Imaging SpA
    Inventors: Silvio Aime, Matteo Galli, Luciano Lattuada, Pierfrancesco Morosini, Fulvio Uggeri, Kondareddiar Ramalingam
  • Publication number: 20110229409
    Abstract: Disclosed herein is a class of linkable tetrasaccharide compounds that includes the amino phenyl glycoside of sialyl Lewis X (SLeX) and related analogs. These compounds have conjugatable nucleophilic groups, making them useful in preparing multimeric SLeX compositions. In particular, the disclosed SLeX compounds can be used to prepare selectin binding ligand con-jugatcs by linking them to a reporter moiety, such as a contrast agent, a radiodiagnostic agent, or a cytotoxic or chemotherapeutic agent. The SLeX compounds and conjugates of the invention exhibit binding to selectin that is similar to native Sialyl LeX, and are, therefore, useful for diagnosing and treating selectin-mediated disorders and related conditions.
    Type: Application
    Filed: May 26, 2011
    Publication date: September 22, 2011
    Applicant: Bracco International B.V.
    Inventors: Ramachandran Ranganathan, Kondareddiar Ramalingam, Radhakrishna Pillai, Edmund R. Marinelli, Rolf E. Swenson
  • Patent number: 7988950
    Abstract: The present invention relates to a novel class of paramagnetic ion-based contrast i agents of formula (I), wherein a chelating backbone moiety is highly functionalized by the presence of one or more polyhydroxylated chain, that show a pharmacokinetic i profile analogous to that of the commonly used T1-general extravascular agents (NSA) but are further characterized by a higher relaxivity.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: August 2, 2011
    Assignee: Bracco Imaging S.p.A.
    Inventors: Silvio Aime, Matteo Galli, Luciano Lattuada, Pierfrancesco Morosini, Fulvio Uggeri, Kondareddiar Ramalingam
  • Publication number: 20110097275
    Abstract: The present invention provides polypeptides, peptide dimers, and multimeric complexes comprising at least one binding moiety for KDR or VEGF/KDR complex, which have a variety of uses wherever treating, detecting, isolating or localizing angiogenesis is advantageous. Particularly disclosed are synthetic, isolated polypeptides capable of binding KDR or VEGF/KDR complex with high affinity (e.g., having a KD<1 ?M), and dimer and multimeric constructs comprising these polypeptides, particularly contrast agents. Also provided are methods for monitoring and evaluating the therapeutic effectiveness of treatment protocols for diseases associated with angiogenesis or endothelial cell hyperproliferation, such as cancer, using contrast agents of the invention.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 28, 2011
    Applicant: BRACCO SUISSE SA
    Inventors: Christophe Arbogast, Philippe Bussat, Hong Fan, Sudha Khurana, Karen E. Linder, Edmund R. Marinelli, Palaniappa Nanjappan, Adrian D. Nunn, Radhakrishna K. Pillai, Sibylle Pochon, Kondareddiar Ramalingam, Ajay Shrivastava, Bo Song, Rolf E. Swenson, Mathew A. Von Wronski, Feng Yan
  • Patent number: 7922998
    Abstract: New and improved compounds for use in diagnostic imaging or therapy having the formula M-N—O—P-G, wherein M is a metal chelator having the structure: wherein R1-R5 and FG are as defined herein (in the form complexed with a metal radionuclide or not), N—O—P is the linker containing at least one non-alpha amino acid with a cyclic group, at least one substituted bile acid or at least one non-alpha amino acid, and G is the GRP receptor targeting peptide. In the preferred embodiment, M is an Aazta metal chelator or a derivative thereof. Methods for imaging a patient and/or providing radiotherapy or phototherapy to a patient using the compounds of the invention are also provided. Methods and kits for preparing a diagnostic imaging agent from the compound is further provided. Methods and kits for preparing a radiotherapeutic agent are further provided.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: April 12, 2011
    Assignee: Bracco Imaging S.p.A.
    Inventors: Enrico Cappelletti, Luciano Lattuada, Karen E. Linder, Edmund Marinelli, Palaniappa Nanjappan, Natarajan Raju, Kondareddiar Ramalingam, Rolf E. Swenson, Michael Tweedle
  • Publication number: 20110082280
    Abstract: Methods of coupling targeting molecules to multidentate aza ligands of general formula (I): in which: R1 through R5 and FG are as defined in the specification are presented. The aza ligands and/or the resulting conjugates may be labeled with bi-trivalent ions of the metal elements having atomic number ranging between 20 and 31, 39, 42, 43, 44, 49, and between 57 and 83, and radioisotopes chosen among 203Pb, 67Ga, 68Ga, 72As, 111In, 113In, 90Y, 97Ru, 62Cu, 64Cu, 52Fe, 52mMn, 140La, 175Yb, 153Sm, 166Ho, 149Pm, 177Lu, 142Pr, 159Gd, 212Bi, 47Sc, 149Pm, 67Cu, 111Ag, 199Au, 161Tb, 51Cr, 167Tm, 141Ce, 168Yb, 88Y, 165Dy, 166Dy, 97Ru, 103Ru, 186Re, 188Re, 99mTc, 211Bi, 212Bi, 213Bi, 214Bi, 105Rh, 109Pd, 117mSn, 177Sn and 199Au.
    Type: Application
    Filed: November 18, 2010
    Publication date: April 7, 2011
    Applicant: BRACCO IMAGING S.P.A.
    Inventors: Giovanni Battista GIOVENZANA, Giovanni PALMISANO, Massimo SISTI, Camilla CAVALLOTTI, Silvio AIME, Luisella CALABI, Rolf SWENSON, Kondareddiar RAMALINGAM, Luciano LATTUADA, Pierfrancesco MOROSINI
  • Publication number: 20110070165
    Abstract: The invention provides compositions and methods for therapeutic and diagnostic applications.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 24, 2011
    Inventors: Christophe Arbogast, Philippe Bussat, Hong Fan, Karen E. Linder, Edmund R. Marinelli, Palaniappa Nanjappan, Adrian D. Nunn, Radhakrishna K. Pillai, Sibylle Pochon, Kondareddiar Ramalingam, Ajay Shrivastava, Bo Song, Rolf E. Swenson, Mathew A. Von Wronski, Feng Yan, Aaron K. Sato, Sharon Michele Walker, Daniel T. Dransfield
  • Patent number: 7910088
    Abstract: The invention provides compositions and methods for therapeutic and diagnostic applications.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: March 22, 2011
    Assignees: Bracco Suisse SA, Dyax Corp.
    Inventors: Christophe Arbogast, Philippe Bussat, Hong Fan, Karen E. Linder, Edmund R. Marinelli, Palaniappa Nanjappan, Adrian D. Nunn, Radhakrishna K. Pillai, Sibylle Pochon, Kondareddiar Ramalingam, Ajay Shrivastava, Bo Song, Rolf E. Swenson, Mathew A. Von Wronski, Aaron K. Sato, Sharon Michele Walker, Daniel T. Dransfield, Feng Yan
  • Publication number: 20110052491
    Abstract: New and improved compounds for use in diagnostic imaging or therapy having the formula M—N—O—P—G, wherein M is an optical label or a metal chelator (in the form complexed with a metal radionuclide or not), N—O—P is the linker, and G is the GRP receptor targeting peptide. Methods for imaging a patient and/or providing radiotherapy or phototherapy to a patient using the compounds of the invention are also provided. Methods and kits for preparing a diagnostic imaging agent from the compound is further provided. Methods and kits for preparing a radiotherapeutic agent are further provided.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 3, 2011
    Applicant: BRACCO IMAGING S.P.A.
    Inventors: Enrico Cappelletti, Luciano Lattuada, Karen E. Linder, Edmund Marinelli, Palaniappa Nanjappan, Natarajan Raju, Kondareddiar Ramalingam, Rolf E. Swenson, Michael Tweedle
  • Patent number: 7884183
    Abstract: The present invention provides compounds for targeting endothelial cells, tumor cells or other cells that express the NP-1 receptor, compositions containing the same and methods for their use. Additionally, the present invention includes diagnostic, therapeutic and radiotherapeutic compositions useful for visualization, therapy or radiotherapy.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: February 8, 2011
    Assignee: Bracco Suisse SA
    Inventors: Mathew A. Von Wronski, Edmund R. Marinelli, Adrian D. Nunn, Radhakrishna K. Pillai, Kondareddiar Ramalingam, Michael F. Tweedle, Karen E. Linder, Palaniappa Nanjappan, Natarajan Raju, Feng Yan, Michel Schneider
  • Patent number: 7854919
    Abstract: The invention provides compositions and methods for therapeutic and diagnostic applications.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: December 21, 2010
    Assignees: Bracco, Suisse SA, Dyax Corporation
    Inventors: Christophe Arbogast, Philippe Bussat, Hong Fan, Karen E. Linder, Edmund R. Marinelli, Palaniappa Nanjappan, Adrian Nunn, Radhakrishna Pillai, Sibylle Pochon, Kondareddiar Ramalingam, Bo Song, Rolf E. Swenson, Mathew A. Von Wronski, Aaron Sato, Sharon Michele Walker, Daniel T. Dransfield, Ajay Shrivastava
  • Patent number: 7850947
    Abstract: New and improved compounds for use in diagnostic imaging or therapy having the formula M-N—O—P-G, wherein M is a metal chelator having the structure: wherein R1-R5 and FG are define herein (in the form complexed with a metal radionuclide or not), N—O—P is the linker containing at least one non-alpha amino acid with a cyclic group, at least one substituted bile acid or at least one non-alpha amino acid, and G is the GRP receptor targeting peptide. In the preferred embodiment, M is an Aazta metal chelator or a derivative thereof. Methods for imaging a patient and/or providing radiotherapy or phototherapy to a patient using the compounds of the invention are also provided. Methods and kits for preparing a diagnostic imaging agent from the compound is further provided. Methods and kits for preparing a radiotherapeutic agent are further provided.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: December 14, 2010
    Assignee: Bracco Imaging S.p.A.
    Inventors: Enrico Cappelletti, Luciano Lattuada, Karen E. Linder, Edmund Marinelli, Palaniappa Nanjappan, Adrian D. Nunn, Natarajan Raju, Kondareddiar Ramalingam, Rolf E. Swenson, Michael F. Tweedle
  • Patent number: 7820621
    Abstract: The present invention provides compounds for targeting endothelial cells, tumor cells or other cells that express the NP-1 receptor, compositions containing the same and methods for their use. Additionally, the present invention includes diagnostic, therapeutic and radiotherapeutic compositions useful for visualization, therapy or radiotherapy.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: October 26, 2010
    Assignee: Bracco International B.V.
    Inventors: Mathew A. Von Wronski, Edmund R. Marinelli, Adrian D. Nunn, Radhakrishna K. Pillai, Kondareddiar Ramalingam, Michael F. Tweedle, Karen E. Linder, Palaniappa Nanjappan, Natarajan Raju, Feng Yan, Michel Schneider