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Chronic Treatment of Heart Failure With Poloxamer-188

Award Information

Agency:
Department of Health and Human Services
Branch:
N/A
Award ID:
85830
Program Year/Program:
2007 / SBIR
Agency Tracking Number:
HL088813
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
PHRIXUS PHARMACEUTICALS, INC.
300 N. Fifth Ave ANN ARBOR, MI 48104-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: Chronic Treatment of Heart Failure With Poloxamer-188
Agency: HHS
Contract: 1R43HL088813-01
Award Amount: $215,084.00
 

Abstract:

DESCRIPTION (provided by applicant): Heart failure (HF) is a major medical problem in the United States affecting more than 5 million patients. It is expected to impact 11 million patients by 2011. Of these patients, over 40% have a defect in the ability o f the heart muscle to relax which prevents the heart from filling with blood normally (diastolic dysfunction). While there are several therapies and AHA/ACC consensus guidelines for the treatment of (systolic) abnormalities, there are no guidelines and few therapies exist for the treatment of diastolic dysfunction, a large unmet medical need. The novel and innovative solution to this problem provided by Phrixus is the biological membrane sealant Poloxamer-188 (P- 188) with a chronic treatment market potenti al in the billions of dollars. In studies published in Nature in 2005, Dr. Metzger and colleagues provided evidence that, in a muscular dystrophy model of HF, P-188 is able to act as a molecular band-aid, plugging microscopic tears in the membrane of cardi ac muscle cells, preventing abnormal entry of extracellular calcium, a stimulator of muscle contraction, into the cells. Thus cells can maintain near normal calcium levels resulting in better relaxation and less diastolic dysfunction. Phrixus is currently working toward an investigative new drug application with the FDA and plans to have P-188 in the clinic in late 2007. P-188 has been in Phase III clinical trials for other indications and has been shown to be safe in an acute dosing regiment in over 4000 p atients. This proposal will provide the first evidence that P-188 will be effective in prolonged treatment of ischemic HF and provide evidence to support its mechanism of action. This evidence will be necessary to recruit clinical investigators and convinc e cardiologists to enroll their patients in clinical trials. A 16-week study in the rat myocardial infarction (MI) model of HF will be run. Groups of animals will be sacrificed at 4 week intervals and examined for changes in the levels of membrane dystroph in, the presence ands extent of sarcolemma leakage, for levels of muscle cell damage markers in their serum, and the ability of P-188 treatment to reverse these affects with 4 weeks of treatment from week 13-16. At 16 weeks, parameters of systolic and dias tolic heart function will be measured in P-188 treated and untreated MI and sham rats to confirm that prolonged treatment is functionally beneficial. In a phase II proposal, Phrixus will request funding for development of P-188 as a chronic HF therapy incl uding long-term safety and efficacy studies.

Principal Investigator:

Bruce E. Markham
2489218226
BRUCE.MARKHAM@PHRIXUSPHARMACEUTICALS.COM

Business Contact:

Thomas A. Collet
bruce.markham@phrixuspharmaceuticals.com
Small Business Information at Submission:

PHRIXUS PHARMACEUTICALS, INC.
PHRIXUS PHARMACEUTICALS, INC. 300 N. Fifth Ave ANN ARBOR, MI 48104

EIN/Tax ID: 204533913
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No