Patents Assigned to Prime Bio, Inc
  • Publication number: 20240131137
    Abstract: The present invention describes a second-generation tetanus toxoid vaccine and a process for the preparation thereof, comprising the steps of: inducing an E. Coli culture OD 600=0.5 by adding 0.2 mM IPTG; growing the culture at 14-16° C. for 14 to 20 hours; suspending the culture in 25 mM phosphate buffer containing 200 mM sodium chloride; adding 1% of triton-X-100 to the phosphate buffer, and adding the buffer to the culture; sonicating the culture for a period of 3 minutes (at 5 sec on/off pulse) at 4° C. on cold beads; centrifuging the culture for 60 to 90 minutes; collecting and purifying a supernatant using Ni-NTA affinity column with an eluant; and combining the supernatant into a pool with contaminated bands and concentrating using Centriprep-30 centrifuge filters (30 kDa pores).
    Type: Application
    Filed: September 13, 2023
    Publication date: April 25, 2024
    Applicant: Prime Bio, Inc.
    Inventor: Bal Ram Singh
  • Patent number: 11957740
    Abstract: Compositions comprising the L complex or the M complex of the botulinum neurotoxin E with its associated neurotoxin binding protein(s) (NBP), methods of making, and methods of use to treat pain and wrinkles by injecting locally. Methods of making and isolating the L and M complex comprise a multi-step process of: providing a bacterial cultured media comprising the complex of botulinum neurotoxin E and neurotoxin binding proteins; centrifuging and pelletizing the cultured media; stirring the pelletized culture at 0 to 10° C. over a period of 4 to 24 hours; centrifuging the stirred solution to obtain a supernatant; precipitating the supernatant and filtering to obtain the precipitate; and dissolving the precipitate, centrifuging and filtering to obtain a solution comprising M complex and/or L complex of botulinum neurotoxin E and its NBP; and passing the solution through a functionalized sephadex ion exchange column to isolate the complex.
    Type: Grant
    Filed: March 13, 2021
    Date of Patent: April 16, 2024
    Assignee: Prime Bio, Inc.
    Inventors: Bal Ram Singh, Raj Kumar
  • Patent number: 11771752
    Abstract: The present invention describes a neurotoxin associated protein from botulinum neurotoxin complex used as an oral or nasal delivery system for a vaccine. The vaccine is selected from tetanus, diphtheria and pertussis alone or in combination. Further the oral or nasal delivery of tetanus vaccine in combination with other drug molecules.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: October 3, 2023
    Assignee: Prime Bio, Inc.
    Inventor: Bal Ram Singh
  • Publication number: 20230201332
    Abstract: A recombinant SARS-CoV2 protein-based vaccine, and method of immunizing, is developed by either embedding the epitopes/domains, or chemically attaching, to an already established vaccine candidate, such as a detoxified recombinant tetanus neurotoxin (DrTeNT), to develop a novel vaccine to immunize against SARS-CoV2. The developed vaccine will have three novel contributions compared to the present vaccine technology; a) providing a novel and very effective vaccine platform; b) priming with DrTeNT will prepare the host immune system for better response; and c) oral delivery of the vaccine candidate with a group of neurotoxin binding proteins (NAPs) from Clostridium sp. A Detoxified recombinant tetanus neurotoxin (DrTeNT) is prepared by mutation of the active site amino acid residues is an effective vaccine candidate, and is to be used for embedding epitopes of SARS-CoV-2 virus protein for vaccination against Covid-19. DrTeNT is a risk-free vaccine, free of formalin or any other chemical adjuvants.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 29, 2023
    Applicant: PRIME BIO, INC.
    Inventors: Bal Ram SINGH, Kruti PATEL, Raj KUMAR
  • Publication number: 20220390461
    Abstract: The present invention provides a method for detecting and assaying Clostridium neurotoxins and identification of serotypes of botulinum neurotoxins in various food matrices and clinical samples. This method is also used for detection of BoNT inside the neuronal and epithelial cells. The method comprises detecting and assaying the presence of a Clostridium neurotoxin in a sample by: exposing the sample containing a Clostridium neurotoxin to a sample comprising a novel SNAMPXIN/SNAMP universal recombinant substrate fusion protein capable of producing a detectable FRET, following cleavage; detecting and assaying the presence of the Clostridium neurotoxin by measuring a change in the energy transfer or the luminescence signal; and detecting and assaying an electrophoretic mobility pattern of one or more cleaved protein bands or a degraded protein, using a high throughput automated system to identify the different serotypes of the Clostridium neurotoxin.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 8, 2022
    Applicant: Prime Bio, Inc.
    Inventors: Bal Ram Singh, Raj Kumar
  • Publication number: 20220288173
    Abstract: Compositions comprising the L complex or the M complex of the botulinum neurotoxin E with its associated neurotoxin binding protein(s) (NBP), methods of making, and methods of use to treat pain and wrinkles by injecting locally. Methods of making and isolating the L and M complex comprise a multi-step process of: providing a bacterial cultured media comprising the complex of botulinum neurotoxin E and neurotoxin binding proteins; centrifuging and pelletizing the cultured media; stirring the pelletized culture at 0 to 10° C. over a period of 4 to 24 hours; centrifuging the stirred solution to obtain a supernatant; precipitating the supernatant and filtering to obtain the precipitate; and dissolving the precipitate, centrifuging and filtering to obtain a solution comprising M complex and/or L complex of botulinum neurotoxin E and its NBP; and passing the solution through a functionalized sephadex ion exchange column to isolate the complex.
    Type: Application
    Filed: March 13, 2021
    Publication date: September 15, 2022
    Applicant: Prime Bio, Inc.
    Inventors: Bal Ram Singh, Raj Kumar
  • Patent number: 11389497
    Abstract: Presently claimed invention related to a pharmaceutical composition comprising ascorbic acid caffeoylquinic acid, rosmarinic acid. and glycosyl sulfones obtained from Ocimum Sanctum and a process for isolating said composition from Ocimum Sanctum. Presently claimed invention also provides a method of treating neural crest derived tumors such as malignant neurofibroma and melanoma.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: July 19, 2022
    Assignee: Prime Bio, Inc.
    Inventors: Bal Ram Singh, Chandra K Mayanil, Tadanori Tomita, Raj Kumar
  • Publication number: 20220081473
    Abstract: Present invention relates to a pharmaceutical composition comprising P80 with drugs, dyes, small molecules, biomolecules, proteins or combination thereof. P80 enhances the transportation of molecules associated with it. The P80 is a tight junction modulators to enhance the permeability of the intestinal epithelium so as to facilitate drug delivery. The invention further provides a process for the preparation, isolation and purification of p80 protein.
    Type: Application
    Filed: September 17, 2020
    Publication date: March 17, 2022
    Applicant: Prime Bio, Inc
    Inventors: Bal Ram Singh, Raj Kumar
  • Publication number: 20210346292
    Abstract: The main aspect of present invention is to provide a pharmaceutical composition to increase the stability of liquid formulation of botulinum toxin and related proteins. The present invention provides a method to stabilize toxin in liquid formulation. Lipid based drug delivery system is known to increase the bioavailability of drugs (Amidon et al., 1995; Jannin et al., 2008). We investigated the stability of BoNT/A toxin and complex. We used two formulations in liquid phase: combination of lipids and liposomes, with two different storage conditions: 4° C. and 25° C. The present invention also provides a method for efficient delivery of botulinum toxin through skin as a topical application.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 11, 2021
    Applicant: Prime Bio, Inc.
    Inventors: Bal Ram Singh, Raj Kumar, Boke Zhang
  • Patent number: 11040090
    Abstract: Present invention provides a stable pharmaceutical composition comprising botulinum neurotoxin, anesthetic in a buffer. Present invention also provides a process for the preparation of the stable pharmaceutical composition. The botulinum neurotoxin is stabilized by the formation of complex between the toxin and anesthetic. The present invention further provides a method for treating wrinkles using the said pharmaceutical composition.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 22, 2021
    Assignee: Prime Bio, Inc
    Inventor: Bal Ram Singh
  • Publication number: 20180161406
    Abstract: Present invention provides a stable pharmaceutical composition comprising botulinum neurotoxin, anesthetic in a buffer. Present invention also provides a process for the preparation of the stable pharmaceutical composition. The botulinum neurotoxin is stabilized by the formation of complex between the toxin and anesthetic. The present invention further provides a method for treating wrinkles using the said pharmaceutical composition.
    Type: Application
    Filed: December 8, 2016
    Publication date: June 14, 2018
    Applicant: Prime Bio, Inc
    Inventor: Bal Ram Singh
  • Publication number: 20180147223
    Abstract: Present invention discloses a method of treating an individual suffering from botulism by inhibiting botulinum neurotoxins.
    Type: Application
    Filed: November 29, 2016
    Publication date: May 31, 2018
    Applicant: Prime Bio, Inc
    Inventors: Bal Ram Singh, Kruti Patel