Monday, April 30, 2007 9:25:55 AM
Insmed Releases Positive Results from IPLEX Phase II HIV-Associated Adipose Redistribution Syndrome Clinical Study
9:00 AM EDT April 30, 2007
Insmed Inc., (Nasdaq:INSM) today announced positive results from a Phase II investigator-sponsored clinical study of the company's drug IPLEX(TM) in HIV-infected patients affected with HIV-associated Adipose Redistribution Syndrome (HARS).
Preliminary results from the study, being conducted at the University of California, San Francisco, showed that three months of 0.5 mg/kg/day IPLEX treatment in seven patients increased IGF-I levels 3-fold and was associated with significant improvements in fasting glucose levels, the amount of insulin secreted during an oral glucose tolerance test, and overall insulin sensitivity. Moreover, there was a significant reduction in trunk fat and a positive downward trend in waist circumference when compared to baseline. Lipid profiles also tended to improve.
Notably, normal glucose tolerance was restored in half of the six patients diagnosed with impaired glucose tolerance (IGT) at the start of the study. These IGT patients also experienced a significant decrease in visceral adipose tissue (VAT). Impaired glucose tolerance is characterized by blood glucose between 140 and 200 mg/dl at the 120-minute measurement of an oral glucose tolerance test. The next phase of the study is underway to explore an IPLEX dose of 1.0 mg/kg/day given for six months.
"Our study has demonstrated that a low dose of IPLEX increased IGF-I levels 3-fold and positively impacted abnormal glucose metabolism, dyslipdemia and abnormal fat distribution, which are present in a significant number of HIV patients treated with highly active antiretroviral therapy (HAART)," said Morris Schambelan, M.D., the study's principal investigator and professor of medicine and director of the General Clinical Research Centers at University of California, San Francisco, and chief of endocrinology at San Francisco General Hospital.
"We are very encouraged by these preliminary results with low-dose IPLEX. We believe a product that improves fat distribution while also improving insulin sensitivity would be a valuable therapy for this patient population, and the positive effects on insulin sensitivity observed in this study are consistent with what we observed in our previous studies with IPLEX in patients with diabetes. These results support the most important differentiating property of our product in this patient population, which is IPLEX's ability to improve glucose homeostasis. Competitor products such as TH9507 and growth hormone reportedly either do not alter glucose homeostasis or exacerbate it, respectively. When considering that up to 40% of this population has impaired glucose homeostasis, then this property of IPLEX becomes even more valuable," said Dr. Geoffrey Allan, president and Chief Executive Officer of Insmed.
Study Description
The ongoing, open-label, investigator-sponsored Phase II clinical study is designed to evaluate the safety and efficacy of IPLEX in two cohorts of subjects, the first of which received a 0.5 mg/kg/day dose and the second of which will receive 1.0 mg/kg/day dose. The primary endpoints of the study are to determine the safety and tolerability of IPLEX and its effects on visceral fat and insulin sensitivity.
About HARS
An estimated 80,000 HIV patients in the U.S. have HARS, according to published reports. This disorder is marked by abnormal metabolism, including central fat accumulation (visceral adiposity and buffalo hump) with or without fat loss in the limbs. These features have increased markedly with the advent of highly active antiretroviral therapy (HAART) for HIV. Recent studies performed in subjects on HAART suggest nearly 40% of individuals develop the morphologic features characteristic of this syndrome.
About IPLEX
IPLEX was approved in the United States in December 2005 for the treatment of children with growth failure due to severe primary IGF-I deficiency (Primary IGFD). IPLEX (rhIGF-I/rhIGFBP-3) is a complex of recombinant human insulin-like growth factor-I (rhIGF-I) and its predominant binding protein IGFBP-3 (rhIGFBP-3). The drug is also being investigated for various other indications with unmet medical needs, including myotonic muscular dystrophy, retinopathy of prematurity and amyotrophic lateral sclerosis (also known as ALS or Lou Gehrig's disease).
About the University of California, San Francisco
The University of California, San Francisco (UCSF), is a leading university that consistently defines health care worldwide by conducting advanced biomedical research and providing leading life science education and complex patient care. For more information, please visit www.ucsf.com.
About Insmed
Insmed is a biopharmaceutical company focused on the development and commercialization of drugs for the treatment of metabolic diseases and endocrine disorders with unmet medical needs. For more information, please visit www.insmed.com.
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