Saroglitazar
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Saroglitazar (
INN Inns are generally establishments or buildings where travelers can seek lodging, and usually, food and drink. Inns are typically located in the country or along a highway. Before the advent of motorized transportation, they also provided accomm ...
, trade names Lipaglyn, Bilypsa) is a drug for the treatment of
type 2 diabetes mellitus Type 2 diabetes (T2D), formerly known as adult-onset diabetes, is a form of diabetes mellitus that is characterized by high blood sugar, insulin resistance, and relative lack of insulin. Common symptoms include increased thirst, frequent ur ...
,
dyslipidemia Dyslipidemia is a metabolic disorder characterized by abnormally high or low amounts of any or all lipids (e.g. fats, triglycerides, cholesterol, phospholipids) or lipoproteins in the blood. Dyslipidemia is a risk factor for the development of ...
, NASH and NAFLD It is approved for use in India by the
Drug Controller General of India A drug is any chemical substance other than a nutrient or an essential dietary ingredient, which, when administered to a living organism, produces a biological effect. Consumption of drugs can be via inhalation, injection, smoking, ingestion ...
. Saroglitazar is indicated for the treatment of diabetic dyslipidemia and
hypertriglyceridemia Hypertriglyceridemia is the presence of high amounts of triglycerides in the blood. Triglycerides are the most abundant fatty molecule in most organisms. Hypertriglyceridemia occurs in various physiologic conditions and in various diseases, and ...
with type 2 diabetes mellitus not controlled by
statin Statins (or HMG-CoA reductase inhibitors) are a class of medications that lower cholesterol. They are prescribed typically to people who are at high risk of cardiovascular disease. Low-density lipoprotein (LDL) carriers of cholesterol play ...
therapy. In clinical studies, saroglitazar has demonstrated reduction of
triglycerides A triglyceride (from ''wikt:tri-#Prefix, tri-'' and ''glyceride''; also TG, triacylglycerol, TAG, or triacylglyceride) is an ester derived from glycerol and three fatty acids. Triglycerides are the main constituents of body fat in humans and oth ...
(TG), LDL
cholesterol Cholesterol is the principal sterol of all higher animals, distributed in body Tissue (biology), tissues, especially the brain and spinal cord, and in Animal fat, animal fats and oils. Cholesterol is biosynthesis, biosynthesized by all anima ...
, VLDL cholesterol, non-HDL cholesterol and an increase in HDL cholesterol a characteristic hallmark of atherogenic diabetic dyslipidemia (ADD). It has also shown
anti-diabetic medication Drugs used in diabetes treat types of diabetes mellitus by decreasing glucose levels in the blood. With the exception of insulin, most GLP-1 receptor agonists ( liraglutide, exenatide, and others), and pramlintide, all diabetes medications a ...
properties by reducing the fasting plasma glucose and HBA1c in diabetes patients.


Mechanism of action

Saroglitazar is an insulin sensitizer. It is a first in class drug which acts as a dual
PPAR agonist PPAR agonists are drugs which act upon the peroxisome proliferator-activated receptor. They are used for the treatment of symptoms of the metabolic syndrome, mainly for lowering triglycerides and blood sugar. Classification PPAR-alpha and PPAR-g ...
at the subtypes α (alpha) and γ (gamma) of the
peroxisome proliferator-activated receptor In the field of molecular biology, the peroxisome proliferator–activated receptors (PPARs) are a group of nuclear receptor proteins that function as transcription factors regulating gene expression. PPARs play essential roles in regulating cel ...
(PPAR). Agonist action on
PPARα Peroxisome proliferator-activated receptor alpha (PPAR-α), also known as NR1C1 (nuclear receptor subfamily 1, group C, member 1), is a nuclear receptor protein functioning as a transcription factor that in humans is encoded by the ''PPARA'' gen ...
lowers high blood triglycerides, and agonist action on
PPARγ Peroxisome proliferator-activated receptor gamma (PPAR-γ or PPARG), also known as the glitazone reverse insulin resistance receptor, or NR1C3 (nuclear receptor subfamily 1, group C, member 3) is a type II nuclear receptor functioning as a transc ...
improves
insulin resistance Insulin resistance (IR) is a pathological response in which cells in insulin-sensitive tissues in the body fail to respond normally to the hormone insulin or downregulate insulin receptors in response to hyperinsulinemia. Insulin is a horm ...
and consequently lowers blood sugar.


Efficacy

Being a dual PPAR agonist, saroglitazar helps in controlling blood glucose and lipid parameters, especially high
triglycerides A triglyceride (from ''wikt:tri-#Prefix, tri-'' and ''glyceride''; also TG, triacylglycerol, TAG, or triacylglyceride) is an ester derived from glycerol and three fatty acids. Triglycerides are the main constituents of body fat in humans and oth ...
and high non-
HDL cholesterol High-density lipoprotein (HDL) is one of the five major groups of lipoproteins. Lipoproteins are complex particles composed of multiple proteins which transport all fat molecules (lipids) around the body within the water outside cells. They are t ...
. A study done in rats concluded that saroglitazar has the potential to prevent the progression of
retinopathy Retinopathy is any damage to the retina of the eyes, which may cause vision impairment. Retinopathy often refers to retinal vascular disease, or damage to the retina caused by abnormal blood flow. Age-related macular degeneration is technically in ...
in diabetes patients. Using preclinical models, it has also been shown to be useful in
diabetic nephropathy Diabetic nephropathy, also known as diabetic kidney disease, is the chronic loss of kidney function occurring in those with diabetes mellitus. Diabetic nephropathy is the leading cause of chronic kidney disease (CKD) and end-stage renal disease ...
.


Safety

No major serious adverse events have been reported; however, long-term cardiovascular safety has not been established. Concerns have been raised regarding increase in serum creatinine with the use of saroglitazar, initially noted in a meta-analysis published by Dutta et. al. In another randomized controlled trial published by Gawrieh et. al., a mild but significant increase in serum creatinine was noted with 16 weeks use of saroglitazar at 4mg/day dose.


Controversies

In December 2016, Zydus Discovery DMCC, a research subsidiary Zydus Lifesciences, was cited by the US FDA for deliberately misbranding saroglitazar. In a December 21, 2016, letter to the company, the US FDA asked it to stop using broad statements, such as the "world's first" and to stop suggesting that the drug is approved throughout the world, including in the United States, when that is not true.


References

{{PPAR modulators PPAR agonists Carboxylic acids Thioethers Ethoxy compounds Pyrroles