Gemcabene, pharmaceutically acceptable salts thereof, compositions thereof and methods of use therefor

Abstract

This present invention provides gemcabene pharmaceutically acceptable salts having a PSD90 of 35 μm to about 90 μm, methods for purifying crude gemcabene, pharmaceutically acceptable salts of purified gemcabene, pharmaceutical compositions of a gemcabene pharmaceutically acceptable salt and therapeutic and prophylactic methods useful for various conditions, including dyslipidemia.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 62 / 486,728, filed Apr. 18, 2017, U.S. Provisional Application No. 62 / 486,822, filed Apr. 18, 2017, U.S. Provisional Application No. 62 / 569,358, filed Oct. 6, 2017, and U.S. Provisional Application No. 62 / 584,576, filed Nov. 10, 2017, the disclosure of each of which is incorporated by reference herein in its entirety.DESCRIPTION OF THE TEXT FILE SUBMITTED ELECTRONICALLY[0002]The contents of the text file submitted electronically herewith are incorporated herein by reference in their entirety: A computer readable format copy of the Sequence Listing (filename: GMPH_004_04US_SeqList_ST25.txt; date recorded: Apr. 18, 2018; file size 9,110 bytes).FIELD OF THE INVENTION[0003]This invention provides pharmaceutically acceptable salts of 6-(5-carboxy-5-methyl-hexyloxy)-2,2-dimethyl-hexanoic acid (“gemcabene”), wherein the pharmaceutically acceptable salts have a PSD90 ranging f...

AI Technical Summary

Benefits of technology

The present invention provides methods for reducing the risk of several diseases such as thrombosis, cardiovascular events, pancreatitis, and hyperlipoproteinemia type IIB, as well as slowing the progression of fibrosis and nonalcoholic fatty liver disease (NAFLD). These methods involve administering an effective amount of a compound of the invention to a person in need.

Problems solved by technology

In addition, type IIb patients have a high risk of developing non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatosis hepatitis (NASH), which are forms of fatty liver that can develop due to hepatic triglyceride overproduction and accumulation.

NASH can cause the liver to swell and become damaged.

NASH is marked by hepatocyte ballooning and liver inflammation, which can lead to liver damage and progress to scarring and irreversible changes, similar to the damage caused by heavy alcohol use.

NAFLD, NASH or fatty liver can lead to metabolic complications including elevation of liver enzymes, fibrosis, cirrhosis, hepatocellular carcinoma, and liver failure.

Liver failure is life-threatening and therefore there is a need to develop therapies to delay development, prevent formation or reverse the condition of a fatty liver, such as in type IIb patients and other patients at risk for, or present with fatty liver disease.

Current treatment options for type IIb hyperlipidemia are limited.

While statins are very effective at lowering LDL-C, in general they are not very effective at also lowering triglyceride concentrations.

Further, high dose statin therapy is often not well tolerated because it can cause muscle pain (myalgia) and increase patient's risk for serious muscle toxicity, such as rhabdomyolysis.

Also, commonly used triglyceride lowering agents that are given in combination with statins are not well-tolerated.

Fibrates when given with statins are known to have drug-drug interactions resulting in increased statin blood drug levels and present an increased safety risk.

Indeed, the interaction of the statin, Baychol (Cerivastatin) with the fibrate, gemfibrozil resulted severe muscle toxicity and deaths, and raised safety concerns that resulted in the removal of Baychol from the market.

Fibrates are associated with myalgia and an increased risk of muscle toxicity, fish oil needs to be taken multiple times daily, and is associated with a fish oil aftertaste, burping or regurgitation, and niacin causes flushing particularly when administered in combination with statins.

Further, a pharmaceutically acceptable salt of gemcabene having a PSD90 of less than 30 μm can be difficult to handle due to its low density and / or increased electrostatic properties.

Without bound to any theory, particles having low density and / or high electrostatic properties render tableting these particles difficult, particularly in manufacturing processes.

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