Treatment of acute exacerbation of asthma and reduction of likelihood of hospitalization of patients suffering therefrom

a technology for asthma and acute exacerbation, which is applied in the direction of biocide, heterocyclic compound active ingredients, drug compositions, etc., can solve the problems of provoking unwanted cardiovascular side effects, too risky, and not producing significant clinical benefits, so as to reduce the likelihood of hospitalization, improve breathing ability, and reduce the hospitalization rate

a technology for asthma and acute exacerbation, which is applied in the direction of biocide, heterocyclic compound active ingredients, drug compositions, etc., can solve the problems of provoking unwanted cardiovascular side effects, too risky, and not producing significant clinical benefits, so as to reduce the likelihood of hospitalization, improve breathing ability, and reduce the hospitalization rate

US20110117213A1Inactive Publication Date: 2011-05-19MEDICINOVA INC

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  • Treatment of acute exacerbation of asthma and reduction of likelihood of hospitalization of patients suffering therefrom
  • Treatment of acute exacerbation of asthma and reduction of likelihood of hospitalization of patients suffering therefrom
  • Treatment of acute exacerbation of asthma and reduction of likelihood of hospitalization of patients suffering therefrom

Examples

Experimental program
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Effect test

example 1

Safety and Efficacy of In Vivo Administration of MN-221

[0082]In preclinical studies, intravenously administered MN-221 (0.04 to 0.4 mg / kg) at the peak of ragweed-induced bronchoconstriction demonstrated a statistically significant, and near maximal reversal of bronchoconstriction in ragweed sensitized dogs between 0.75 and 6.7 min (p<0.001 up to 4.5 min and p<0.01 up to 6.7 min) after dosing.

[0083]In a separate study with telemetered dogs at the Lovelace Respiratory Research Institute, the effect of i.v. MN-221 administration in addition to nebulized albuterol was performed to assess cardiovascular changes and safety of the combination therapy. Albuterol was administered by inhalation at 5 or 10 ug / kg and MN-221 was intravenously administered over 15 min at 0.3, 3, or 30 ug / kg. As expected with beta-agonists and as shown in other model systems, both albuterol and MN-221, alone, increased heart rate to a modest level depending on dose. No adverse changes in MAP or QTc were observed w...

example 2

Administration of MN-221 for the Treatment of AEA

[0084]MN-221 was tested at escalating doses of 240 μg to 1,080 μg in patients with AEA treated in emergency departments (EDs). The study included 29 (13 treated with SOC only and 16 treated with MN-221 in combination with SOC) patients with severe AEA. All patients were administered SOC treatment as follows: supplemental oxygen given to maintain oxygen saturation measured by pulse oximetry of ≧90%; two doses of inhaled beta2-agonist (in this study, albuterol 5 mg) via nebulizer given approximately every 20 minutes; simultaneously with two doses of an inhaled anti-cholinergic agent (in this study, ipratropium 0.5 mg) via nebulizer given approximately every 20 minutes; one dose of corticosteroid given orally (in this study, prednisone 60 mg) or intravenously (in this study, methylprednisolone 125 mg), and intravenous magnesium sulfate (2 gm, diluted with 50-100 mL normal saline) and given over 10 minutes to patients with an FEV1 ≦25% of...

example 3

Demonstration of Safety and Efficacy of MN-221 Administration to AEA Patients

[0088]A randomized, double-blind, placebo-controlled Phase II clinical trial is performed for demonstrating the efficacy and safety of administering MN-221 in accordance with the various aspects and embodiments of the methods of the present invention. A patient is administered the following initial SOC treatment regimen (consistent with the National Asthma Education and Prevention Program and the Global Initiative for Asthma (GINA) guidelines). The SOC includes the following: supplemental oxygen given to maintain oxygen saturation as measured by pulse oximetry of ≧90% as needed; albuterol: 10 mg of albuterol via nebulizer prior to the qualifying spirometry evaluation; simultaneously with ipratropium: 1.0 mg of ipratropium via nebulizer prior to the qualifying spirometry evaluation (if a nebulizer is not used, albuterol and ipratropium may be administered using an MDI with spacer as follows; albuterol: 16 pu...

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Abstract

The invention provides a method of improving one or more clinical outcomes of an individual experiencing an acute respiratory attack. The acute respiratory attack may include acute reversible bronchospasm, severe acute bronchospasm, or acute exacerbation of asthma. The method includes administering to an individual suffering from an acute respiratory attack an effective amount of bedoradrine or a pharmaceutically acceptable salt thereof in combination with a standard of care (SOC) treatment regimen.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATIONS[0001]This application claims priority from U.S. Provisional Application Nos. 61 / 262,352 and 61 / 392,917, filed Nov. 18, 2009 and Oct. 13, 2010, respectively, and incorporated herein by reference in their entirety.FIELD OF THE INVENTION[0002]This invention relates to a method of treating severe episodes of asthma, preventing the manifestations of severe and long-lasting episodes of asthma from worsening, and reducing the likelihood of hospitalization (or other adverse clinical outcomes) of patients suffering from severe and long-lasting episodes of asthma, including without limitation, acute exacerbation of asthma. In particular, this therapeutic approach with MN-221 (generic name: bedoradrine) provides additional bronchodilation and improved clinical outcomes including reduced hospitalization when used adjunctively to (that is, in combination with) recognized standard respiratory care for acute asthma exacerbations (i.e., nebulized albut...

Claims

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Application Information

Patent Timeline
19 May 2011
Publication
US20110117213A1
IPC
A61K31/165; A61K31/56; A61K33/06; A61K31/24; A61K31/44; A61K31/46; A61K31/573; A61P11/00; A61P11/08
CPC
A61K31/165; A61K31/24; A61K31/44; A61K31/46; A61K31/56; A61K31/138; A61K33/06; A61K45/06
Inventors
MATSUDA, KAZUKO; IWAKI, YUICHI