Patents by Inventor Leonard Bell

Leonard Bell 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: 11244744
    Abstract: This invention provides, inter alia, a complement-inhibitor-based treatment plan coupled with a risk evaluation and management strategy (“REMS”) and a safety support program (“SSP”) for reinforcing the REMS. The REMS and SPP are implemented using one or more computer devices with software tools programmed to enforce conditions of the REMS and/or prompt follow-ups by registered nurses enrolled in the SSP. The software tool(s) determines whether a prescriber requesting the complement inhibitor has agreed to abide by the REMS, and can prompt a provider of the complement inhibitor to provide updated educational materials to the prescriber at predetermined times or intervals, to monitor the prescriber for compliance with the REMS, and/or to monitor patients for signs of adverse events. Using exemplary embodiments described herein, a risk of adverse events (especially, but not limited to, meningococcal infections) can be managed and an incidence of the adverse events can be reduced.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: February 8, 2022
    Assignee: Alexion Pharmaceuticals, Inc.
    Inventors: Leonard Bell, Camille Bedrosian
  • Patent number: 11031102
    Abstract: This invention provides, inter alia, a complement-inhibitor-based treatment plan coupled with a risk evaluation and management strategy (“REMS”) and a safety support program (“SSP”) for reinforcing the REMS. The REMS and SPP are implemented using one or more computer devices with software tools programmed to enforce conditions of the REMS and/or prompt follow-ups by registered nurses enrolled in the SSP. The software tool(s) determines whether a prescriber requesting the complement inhibitor has agreed to abide by the REMS, and can prompt a provider of the complement inhibitor to provide updated educational materials to the prescriber at predetermined times or intervals, to monitor the prescriber for compliance with the REMS, and/or to monitor patients for signs of adverse events. Using exemplary embodiments described herein, a risk of adverse events (especially, but not limited to, meningococcal infections) can be managed and an incidence of the adverse events can be reduced.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: June 8, 2021
    Assignee: Alexion Pharmaceuticals, Inc.
    Inventors: Leonard Bell, Camille Bedrosian
  • Publication number: 20200392216
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglohinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Application
    Filed: January 23, 2020
    Publication date: December 17, 2020
    Inventors: Leonard BELL, Russell P. ROTHER, Mark J. EVANS
  • Patent number: 10703809
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglobinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: July 7, 2020
    Assignee: Alexion Pharmaceuticals, Inc.
    Inventors: Leonard Bell, Russell P. Rother, Mark J. Evans
  • Publication number: 20200199211
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglobinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventors: Leonard BELL, Russell P. ROTHER, Mark J. EVANS
  • Publication number: 20200140531
    Abstract: The present disclosure relates to, inter alia, compositions containing an inhibitor of human complement and use of the compositions in methods for treating or preventing complement-associated disorders. In some embodiments, the inhibitor is chronically administered to patients. In some embodiments, the inhibitor is administered to a patient in an amount and with a frequency to maintain systemic complement inhibition and prevent breakthrough. In some embodiments, the compositions contain an antibody, or antigen-binding fragment thereof, that binds to a human complement component C5 protein or a fragment of the protein such as C5a or C5b.
    Type: Application
    Filed: October 11, 2019
    Publication date: May 7, 2020
    Inventors: Russell P. ROTHER, Camille BEDROSIAN, Stephen P. SQUINTO, Leonard BELL
  • Patent number: 10590189
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglobinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: March 17, 2020
    Assignee: Alexion Pharmaceuticals, Inc.
    Inventors: Leonard Bell, Russell P. Rother, Mark J. Evans
  • Publication number: 20180142010
    Abstract: The present disclosure relates to, inter alia, a method of treating a patient in need of treatment with a C5 inhibitor or a method for inhibiting formation of terminal complement in a patient, comprising administering an effective amount of a C5 inhibitor, such as eculizumab or an eculizumab variant, to a patient who is or will be in compliance with vaccination with a Neisseria meningococcal Type B specific vaccine.
    Type: Application
    Filed: June 22, 2016
    Publication date: May 24, 2018
    Inventors: Leonard BELL, Camille BEDROSIAN
  • Publication number: 20170369562
    Abstract: The present disclosure relates to, inter alia, compositions containing an inhibitor of human complement and use of the compositions in methods for treating or preventing complement-associated disorders. In some embodiments, the inhibitor is chronically administered to patients. In some embodiments, the inhibitor is administered to a patient in an amount and with a frequency to maintain systemic complement inhibition and prevent breakthrough. In some embodiments, the compositions contain an antibody, or antigen-binding fragment thereof, that binds to a human complement component C5 protein or a fragment of the protein such as C5a or C5b.
    Type: Application
    Filed: September 11, 2017
    Publication date: December 28, 2017
    Inventors: Russell P. ROTHER, Camille Bedrosian, Stephen P. Squinto, Leonard Bell
  • Publication number: 20170349652
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglobinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Application
    Filed: July 5, 2017
    Publication date: December 7, 2017
    Inventors: Leonard BELL, Russell P. ROTHER, Mark J. EVANS
  • Publication number: 20170277835
    Abstract: This invention provides, inter alia, a complement-inhibitor-based treatment plan coupled with a risk evaluation and management strategy (“REMS”) and a safety support program (“SSP”) for reinforcing the REMS. The REMS and SPP are implemented using one or more computer devices with software tools programmed to enforce conditions of the REMS and/or prompt follow-ups by registered nurses enrolled in the SSP. The software tool(s) determines whether a prescriber requesting the complement inhibitor has agreed to abide by the REMS, and can prompt a provider of the complement inhibitor to provide updated educational materials to the prescriber at predetermined times or intervals, to monitor the prescriber for compliance with the REMS, and/or to monitor patients for signs of adverse events. Using exemplary embodiments described herein, a risk of adverse events (especially, but not limited to, meningococcal infections) can be managed and an incidence of the adverse events can be reduced.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 28, 2017
    Inventors: Leonard BELL, Camille BEDROSIAN
  • Patent number: 9771418
    Abstract: The present disclosure relates to, inter alia, compositions containing an inhibitor of human complement and use of the compositions in methods for treating or preventing complement-associated disorders. In some embodiments, the inhibitor is chronically administered to patients. In some embodiments, the inhibitor is administered to a patient in an amount and with a frequency to maintain systemic complement inhibition and prevent breakthrough. In some embodiments, the compositions contain an antibody, or antigen-binding fragment thereof, that binds to a human complement component C5 protein or a fragment of the protein such as C5a or C5b.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: September 26, 2017
    Assignee: Alexion Pharmaceuticals, Inc.
    Inventors: Russell P. Rother, Camille Bedrosian, Stephen P. Squinto, Leonard Bell
  • Patent number: 9732149
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglobinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: August 15, 2017
    Assignee: Alexion Pharmaceuticals, Inc.
    Inventors: Leonard Bell, Russell P. Rother, Mark J. Evans
  • Patent number: 9725504
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglobinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: August 8, 2017
    Assignee: Alexion Pharmaceuticals, Inc.
    Inventors: Leonard Bell, Russell P. Rother, Mark J. Evans
  • Patent number: 9718880
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglobinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: August 1, 2017
    Assignee: Alexion Pharmaceuticals, Inc.
    Inventors: Leonard Bell, Russell P. Rother, Mark J. Evans
  • Publication number: 20170015740
    Abstract: The present disclosure relates to, inter alia, compositions containing an inhibitor of human complement and use of the compositions in methods for treating or preventing complement-associated disorders. In some embodiments, the inhibitor is chronically administered to patients. In some embodiments, the inhibitor is administered to a patient in an amount and with a frequency to maintain systemic complement inhibition and prevent breakthrough. In some embodiments, the compositions contain an antibody, or antigen-binding fragment thereof, that binds to a human complement component C5 protein or a fragment of the protein such as C5a or C5b.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 19, 2017
    Inventors: Russell P. Rother, Camille BEDROSIAN, Stephen P. SQUINTO, Leonard BELL
  • Publication number: 20170015741
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglobinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Application
    Filed: October 3, 2016
    Publication date: January 19, 2017
    Inventors: Leonard BELL, Russell P. ROTHER
  • Publication number: 20160376355
    Abstract: Eculizumab, a humanized monoclonal antibody against C5 that inhibits terminal complement activation, showed activity in a preliminary 12-week open-label trial in a small cohort of patients with paroxysmal nocturnal hemoglobinuria (PNH). The present study examined whether chronic eculizumab therapy could reduce intravascular hemolysis, stabilize hemoglobin levels, reduce transfusion requirements, and improve quality of life in a double-blind, randomized, placebo-controlled, multi-center global Phase III trial. It has been found that eculizumab stabilized hemoglobin levels, decreased the need for transfusions, and improved quality of life in PNH patients via reduced intravascular hemolysis. Chronic eculizumab treatment appears to be a safe and effective therapy for PNH.
    Type: Application
    Filed: September 9, 2016
    Publication date: December 29, 2016
    Inventors: Leonard BELL, Russell P. Rother
  • Publication number: 20160355580
    Abstract: The present disclosure relates to, inter alia, compositions containing an inhibitor of human complement and use of the compositions in methods for treating or preventing complement-associated disorders. In some embodiments, the inhibitor is chronically administered to patients. In some embodiments, the inhibitor is administered to a patient in an amount and with a frequency to maintain systemic complement inhibition and prevent breakthrough. In some embodiments, the compositions contain an antibody, or antigen-binding fragment thereof, that binds to a human complement component C5 protein or a fragment of the protein such as C5a or C5b.
    Type: Application
    Filed: August 22, 2016
    Publication date: December 8, 2016
    Inventors: Russell P. ROTHER, Camille BEDROSIAN, Stephen P. SQUINTO, Leonard BELL
  • Publication number: 20160355579
    Abstract: The present disclosure relates to, inter alia, compositions containing an inhibitor of human complement and use of the compositions in methods for treating or preventing complement-associated disorders. In some embodiments, the inhibitor is chronically administered to patients. In some embodiments, the inhibitor is administered to a patient in an amount and with a frequency to maintain systemic complement inhibition and prevent breakthrough. In some embodiments, the compositions contain an antibody, or antigen-binding fragment thereof, that binds to a human complement component C5 protein or a fragment of the protein such as C5a or C5b.
    Type: Application
    Filed: August 22, 2016
    Publication date: December 8, 2016
    Inventors: Russell P. Rother, Camille BEDROSIAN, Stephen P. SQUINTO, Leonard BELL