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Ezetimibe

Generic Name
Ezetimibe
Brand Names
Ezetrol, Lypqozet, Nexlizet, Roszet, Vytorin, Zetia
Drug Type
Small Molecule
Chemical Formula
C24H21F2NO3
CAS Number
163222-33-1
Unique Ingredient Identifier
EOR26LQQ24

Overview

Ezetimibe is a lipid-lowering compound that inhibits intestinal cholesterol and phytosterol absorption. The discovery and research of this drug began in the early 1990s, after the intravenous administration of radiolabelled ezetimibe in rats revealed that it was being localized within enterocytes of the intestinal villi - this prompted studies investigating the effect of ezetimibe on intestinal cholesterol absorption. Ezetimibe is used as an adjunctive therapy to a healthy diet to lower cholesterol levels in primary hyperlipidemia, mixed hyperlipidemia, homozygous familial hypercholesterolemia (HoFH), and homozygous sitosterolemia (phytosterolemia). Unlike other classes of cholesterol-reducing compounds including statins and bile acid sequestrants, ezetimibe has a distinct mechanism of action involving the sterol transporter Niemann-Pick C1-Like 1 (NPC1L1), and is unique in that it does not affect the absorption of fat-soluble nutrients such as fat-soluble vitamins, triglycerides, or bile acids. In genetically NPC1L1-deficient mice, a 70% reduction in intestinal cholesterol absorption was seen, and these mice were insensitive to ezetimibe treatment - it was determined based on these findings that NPC1L1 plays an essential role in promoting intestinal cholesterol uptake via an ezetimibe-sensitive pathway. By interfering with the intestinal uptake of cholesterol and phytosterols, ezetimibe reduces the delivery of intestinal cholesterol to the liver.

Indication

Ezetimibe is indicated to reduce elevated total-C, LDL-C, Apo B, and non-HDL-C in patients with primary hyperlipidemia, alone or in combination with an HMG-CoA reductase inhibitor (statin). It is also indicated to reduce elevated total-C, LDL-C, Apo B, and non-HDL-C in patients with mixed hyperlipidemia in combination with fenofibrate, and to reduce elevated total-C and LDL-C in patients with homozygous familial hypercholesterolemia (HoFH), in combination with atorvastatin or simvastatin. Ezetimibe may also be used to reduce elevated sitosterol and campesterol in patients with homozygous sitosterolemia (phytosterolemia).

Associated Conditions

  • Elevated Blood Lipids
  • Elevated sitosterol and campesterol

Research Report

Published: Jul 15, 2025

A Comprehensive Monograph on Ezetimibe (DB00973)

Introduction and Drug Identification

[Ezetimibe is a landmark small-molecule therapeutic agent and the first of its kind, belonging to the novel class of selective cholesterol-absorption inhibitors.][1][ Its development and introduction into clinical practice marked a significant advancement in the management of hyperlipidemia. The drug's therapeutic action is predicated on a unique mechanism that is distinct from the widely used statin class of drugs; rather than inhibiting the endogenous synthesis of cholesterol, ezetimibe targets its absorption in the gastrointestinal tract.][3][ This novel approach provides a complementary strategy for lowering elevated levels of low-density lipoprotein cholesterol (LDL-C).]

[Approved for medical use in the United States in 2002, ezetimibe has become a cornerstone of modern lipid-lowering therapy.][3][ It is frequently prescribed as an adjunctive treatment to statins, a combination that leverages two distinct and synergistic pathways to achieve more potent LDL-C reduction than either agent can accomplish alone. It is also utilized as a monotherapy for patients who are intolerant to statins or for whom statin therapy is otherwise inappropriate.][3][ The clinical importance and widespread adoption of ezetimibe are underscored by its prescription volume; in 2022, it was the 79th most commonly prescribed medication in the United States, accounting for over 8 million prescriptions.][3][ Its role in cardiovascular risk reduction has been solidified through major clinical outcome trials, establishing it as a valuable tool in the armamentarium against atherosclerotic cardiovascular disease.]

Continue reading the full research report

Clinical Trials

Title
Posted
Study ID
Phase
Status
Sponsor
2025/03/05
N/A
Recruiting
2025/01/09
Phase 4
Recruiting
2024/12/19
Phase 1
Recruiting
2024/11/13
N/A
Recruiting
Daiichi Sankyo Europe, GmbH, a Daiichi Sankyo Company
2024/10/18
Not Applicable
Recruiting
2024/08/22
N/A
Recruiting
Yun Dai Chen
2024/08/09
Phase 1
Completed
2024/06/10
Phase 3
Completed
2024/05/31
Phase 2
Recruiting
2024/02/28
Phase 4
Withdrawn

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
American Health Packaging
60687-373
ORAL
10 mg in 1 1
6/20/2023
Amneal Pharmaceuticals NY LLC
69238-1156
ORAL
10 mg in 1 1
9/4/2023
Glenmark Pharmaceuticals Inc., USA
68462-322
ORAL
10 mg in 1 1
3/18/2024
A-S Medication Solutions
50090-6631
ORAL
10 mg in 1 1
7/25/2023
Camber Pharmaceuticals, Inc.
31722-628
ORAL
10 mg in 1 1
2/8/2022
Ascend Laboratories, LLC
67877-508
ORAL
10 mg in 1 1
12/14/2022
Althera Pharmaceuticals, LLC
70661-005
ORAL
10 mg in 1 1
9/6/2022
NORTHSTAR RX LLC
16714-780
ORAL
10 mg in 1 1
11/30/2020
Ascend Laboratories, LLC
67877-509
ORAL
10 mg in 1 1
12/14/2022
Althera Pharmaceuticals LLC
70661-002
ORAL
10 mg in 1 1
9/15/2021

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
Ezetimibe Tablets
国药准字H20249818
化学药品
片剂
12/25/2024
Ezetimibe Tablets
国药准字H20243253
化学药品
片剂
2/23/2024
Ezetimibe Tablets
国药准字H20249737
化学药品
片剂
12/17/2024
Ezetimibe Tablets
国药准字H20253162
化学药品
片剂
1/14/2025
Ezetimibe Tablets
国药准字H20243762
化学药品
片剂
5/21/2024
Ezetimibe Tablets
国药准字HJ20160181
化学药品
片剂
9/25/2020
Ezetimibe Tablets
国药准字H20249498
化学药品
片剂
12/1/2024
Ezetimibe Tablets
国药准字HJ20210050
化学药品
片剂
6/29/2021
Ezetimibe Tablets
国药准字H20203468
化学药品
片剂
9/8/2020
Ezetimibe Tablets
国药准字H20213585
化学药品
片剂
7/20/2021

PPB Drug Approvals

Approved Product
Registration No.
Company
Licence No.
Strength
Registration Date
VASITIMB TABLETS 10MG/40MG
N/A
N/A
N/A
6/22/2021
VYTORIN TAB 10MG/20MG
N/A
N/A
N/A
2/8/2005
NUSTENDI TABLETS 180MG/10MG
N/A
N/A
N/A
4/28/2023

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