DYSLIPIDEMIA

Cardiovascular diseases remain the leading cause of death and kills approximately 17 million people per year. Dyslipidemia currently affects approximately 10% of the global population. There is an increasing prevalence and medical need for lipid-modifying drugs in obese and type 2 diabetic patients. A high proportion of type 2 diabetic patients have abnormal concentrations of lipoproteins. In the US, Japan and Europe there are more than 240 million people with abnormal lipoprotein levels. Of these, more than 55 million have low high density lipoprotein (HDL) and/or high triglyceride levels.

Around 5-8% of the population are intolerant (contraindicated, non-responsive, or develop serious side effects) towards statins. Significantly higher percentages of patients on statins have an inadequate overall response and do not obtain the desired lipid profile. These factors are driving the market towards combination therapies that provide additive or synergistic benefits.

SLx-4090 is a novel Microsomal Triglyceride Transfer Protein (MTP) inhibitor that is in development for the treatment of mixed dyslipidemia. Designed to act selectively in the enterocytes lining the gastrointestinal tract, SLx-4090 prevents the formation of chylomicrons which are used to transport triglyceride (TG) and cholesterol into the systemic circulation. The novelty of SLx-4090 is that it is selective for enterocytes and is not absorbed into the systemic circulation. Previous MTP inhibitors have acted both in the intestine and in the liver, causing fat build up in the liver, an unacceptable toxicity. SLx-4090 has completed Phase 1 studies which have confirmed that it is active in the gut significantly blocking fat absorption, but the drug is not present in the systemic circulation. A Phase 2a study is in progress.