Patents Assigned to RXi Pharmaceuticals Corporation
  • Publication number: 20190161757
    Abstract: The present invention relates to RNAi constructs with minimal double-stranded regions, and their use in gene silencing. RNAi constructs associated with the invention include a double stranded region of 8-14 nucleotides and a variety of chemical modifications, and are highly effective in gene silencing. The RNAi constructs may be, for instance, miRNA constructs that are miRNA modulators.
    Type: Application
    Filed: June 28, 2018
    Publication date: May 30, 2019
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, James Cardia
  • Publication number: 20190048341
    Abstract: The present disclosure relates to RNAi constructs with improved cellular uptake characteristics and methods of use of these compounds for silencing expression of long coding RNAs (IncRNAs).
    Type: Application
    Filed: October 19, 2016
    Publication date: February 14, 2019
    Applicants: RXi Pharmaceuticals Corporation, Biogazelle NV
    Inventors: James Cardia, Karen G. Bulock, Joke Hedwig Vandesompele, Gert Van Peer
  • Publication number: 20190029974
    Abstract: The invention pertains to the use of therapeutic approaches to treat various skin disorders and conditions. In particular, the invention pertains to the treatment of cutaneous cancers and cutaneous metastasis of solid tumors, as well as to the removal of tattoos, using a hapten. The invention provides various topical formulations comprising a hapten for treatment of these skin disorders and conditions.
    Type: Application
    Filed: September 9, 2016
    Publication date: January 31, 2019
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Gerard Cauwenbergh, Keith Johnson
  • Patent number: 10167471
    Abstract: The invention relates to various PCSK9 RNAi constructs with gene silencing activities, and uses thereof. The construct has a double-stranded region of 19-49 nucleotides, preferably 25, 26, or 27 nucleotides, and preferably blunt-ended. The construct has selective minimal modifications to confer an optimal balance of biological activity, toxicity, stability, and target gene specificity. The sense strand may be modified such that the construct is not cleaved by Dicer or other RNAse III, and the entire length of the antisense strand is loaded into RISC In addition, the antisense strand may also be modified by 2?-O-methyl groups at the 2nd 5?-end nucleotide to greatly reduce off-target silencing. The constructs of the invention largely avoid the interferon response and sequence-independent apoptosis in mammalian cells, exhibits better serum stability, and enhanced target specificity.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: January 1, 2019
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Joanne Kamens, Anastasia Khvorova
  • Publication number: 20180371464
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal and fibrotic applications.
    Type: Application
    Filed: March 12, 2018
    Publication date: December 27, 2018
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Pamela A. Pavco, Lyn Libertine, James Cardia, Karen G. Bulock
  • Patent number: 10138485
    Abstract: Neutral lipid formulations for nucleic acid delivery are provided according to the invention. The neutral lipid formulations include hydrophobically modified polynucleotides and fat mixtures. Methods of using the neutral lipid formulations are also provided.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: November 27, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Michelle Miller, Karen G. Bulock
  • Patent number: 10131904
    Abstract: The invention relates to improved RNAi constructs and uses thereof. The construct has a double stranded region of 19-49 nucleotides, preferably 25, 26, or 27 nucleotides, and preferably blunt-ended. The construct has selective minimal modifications to confer an optimal balance of biological activity, toxicity, stability, and target gene specificity. For example, the sense strand may be modified (e.g., one or both ends of the sense strand is/are modified by four 2?-O-methyl groups), such that the construct is not cleaved by Dicer or other RNAse III, and the entire length of the antisense strand is loaded into RISC. In addition, the antisense strand may also be modified by 2?-O-methyl group at the 2nd 5?-end nucleotide to greatly reduce off-target silencing. The constructs of the invention largely avoids the interferon response and sequence-independent apoptosis in mammalian cells, exhibits better serum stability, and enhanced target specificity.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: November 20, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Pamela A. Pavco, Joanne Kamens, Tod M. Woolf, William Salomon, Anastasia Khvorova
  • Publication number: 20180327748
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal applications.
    Type: Application
    Filed: February 26, 2018
    Publication date: November 15, 2018
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Pamela A. Pavco, James Cardia
  • Publication number: 20180263925
    Abstract: The present invention relates to methods and compositions for the treatment of alopecia areata. In some aspects, the present invention relates to haptens for use in treating alopecia areata. In other aspects, the present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds the treatment of alopecia areata. In other aspects, the present invention relates to compositions comprising haptens formulated as gels or ointments.
    Type: Application
    Filed: December 3, 2015
    Publication date: September 20, 2018
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Gerard Cauwenbergh, Keith Johnson
  • Patent number: 10041073
    Abstract: The present invention relates to RNAi constructs with minimal double-stranded regions, and their use in gene silencing. RNAi constructs associated with the invention include a double stranded region of 8-14 nucleotides and a variety of chemical modifications, and are highly effective in gene silencing. The RNAi constructs may be, for instance, miRNA constructs that are miRNA modulators.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: August 7, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, James Cardia
  • Publication number: 20180195066
    Abstract: In one aspect, the disclosure provides methods for treating a neurodegenerative disorder, comprising administering to a subject in need thereof a therapeutically effective amount of a nucleic acid molecule and a therapeutically effective amount of a small molecule that activates NF-?B p65 and increases expression of manganese superoxide dismutase (MnSOD/SOD2) and/or expression of a related protein or enzyme.
    Type: Application
    Filed: July 6, 2016
    Publication date: July 12, 2018
    Applicants: Rxi Pharmaceuticals Corporation, Synaerion Therapeutics
    Inventors: Michael Byrne, Antonella Favit-Vanpelt
  • Publication number: 20180195072
    Abstract: Aspects of the invention relate to methods for treating ALS comprising administering to a subject in need thereof a therapeutically effective amount of a nucleic acid molecule that is directed against a gene encoding superoxide dismutase 1 (SOD1).
    Type: Application
    Filed: July 6, 2016
    Publication date: July 12, 2018
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: James Cardia, Michael Byrne, Karen G. Bulock, Pamela A. Pavco, Lyn Libertine
  • Publication number: 20180155718
    Abstract: The present invention relates to RNAi constructs and their use in gene silencing. RNAi constructs associated with the invention contain a double stranded region connected to a single stranded region of phosphorothioate modified nucleotides.
    Type: Application
    Filed: June 30, 2017
    Publication date: June 7, 2018
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Tod M. Woolf, Joanne Kamens, William Salomon, Anastasia Khvorova
  • Patent number: 9963702
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal and fibrotic applications.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: May 8, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Pamela A. Pavco, Lyn Libertine, James Cardia, Karen G. Bulock
  • Patent number: 9938530
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal applications.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: April 10, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Pamela A. Pavco, James Cardia
  • Publication number: 20180030451
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal applications.
    Type: Application
    Filed: September 4, 2015
    Publication date: February 1, 2018
    Applicant: RXi Pharmaceuticals Corporation
    Inventor: Gerard Cauwenbergh
  • Patent number: 9745574
    Abstract: The present invention relates to RNAi constructs and their use in gene silencing. RNAi constructs associated with the invention contain a double stranded region connected to a single stranded region of phosphorothioate modified nucleotides.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: August 29, 2017
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Tod M. Woolf, Joanne Kamens, William Salomon, Anastasia Khvorova
  • Publication number: 20170137823
    Abstract: The invention relates to various PCSK9 RNAi constructs with gene silencing activities, and uses thereof. The construct has a double-stranded region of 19-49 nucleotides, preferably 25, 26, or 27 nucleotides, and preferably blunt-ended. The construct has selective minimal modifications to confer an optimal balance of biological activity, toxicity, stability, and target gene specificity. The sense strand may be modified such that the construct is not cleaved by Dicer or other RNAse III, and the entire length of the antisense strand is loaded into RISC In addition, the antisense strand may also be modified by 2?-O-methyl groups at the 2nd 5?-end nucleotide to greatly reduce off-target silencing. The constructs of the invention largely avoid the interferon response and sequence-independent apoptosis in mammalian cells, exhibits better serum stability, and enhanced target specificity.
    Type: Application
    Filed: October 6, 2016
    Publication date: May 18, 2017
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Joanne Kamens, Anastasia Khvorova
  • Publication number: 20170067056
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal and fibrotic applications.
    Type: Application
    Filed: April 14, 2016
    Publication date: March 9, 2017
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Pamela A. Pavco, Lyn Libertine, James Cardia, Karen G. Bulock
  • Publication number: 20170051290
    Abstract: Aspects of the invention relate to methods for treating an ocular disorder associated with the front of the eye, comprising administering to the eye of a subject in need thereof a therapeutic RNA molecule, in an effective amount to treat an ocular disorder associated with the front of the eye.
    Type: Application
    Filed: May 1, 2015
    Publication date: February 23, 2017
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Michael Byrne, Pamela A. Pavco, Karen G. Bulock