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Data updated: Mar 10, 2026

JANUVIA

SITAGLIPTIN PHOSPHATE
Metabolic Approved 2006-10-16

Januvia (sitagliptin phosphate) is a dipeptidyl peptidase-4 (DPP-4) inhibitor indicated to improve glycemic control in adults with type 2 diabetes mellitus. The medication is used as an adjunct to diet and exercise to manage blood glucose levels. It is not indicated for use in patients with type 1 diabetes or those with a history of pancreatitis.

Source: FDA Label • Merck

How JANUVIA Works

Sitagliptin inhibits the enzyme DPP-4, which is responsible for the rapid inactivation of incretin hormones such as GLP-1 and GIP. By blocking this enzyme, the drug increases and prolongs the activity of these hormones, which are released by the intestine in response to food. These incretins stimulate insulin synthesis and release while lowering glucagon secretion, thereby reducing glucose production in the liver. This therapeutic effect occurs in a glucose-dependent manner, activating primarily when blood glucose concentrations are normal or elevated.

Source: FDA Label
6
Indications
--
Phase 3 Trials
1
Priority Reviews
19
Years on Market

Details

Status
Prescription
First Approved
2006-10-16
Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: SITAGLIPTIN PHOSPHATE

JANUVIA Approval History

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What JANUVIA Treats

1 indications

JANUVIA is approved for 1 conditions since its original approval in 2006. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Type 2 Diabetes
Source: FDA Label

JANUVIA Target & Pathway

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Target

GLP-1 (Glucagon-Like Peptide-1) Incretin Receptor

A hormone released after eating that stimulates insulin secretion, suppresses glucagon, slows gastric emptying, and promotes satiety. GLP-1 receptor agonists mimic these effects, improving blood sugar control and promoting weight loss in diabetes and obesity.

JANUVIA Competitors

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6 other drugs also target GLP-1. Compare mechanisms, indications, and trial activity.

Drug = Competitor name Company = Manufacturer N indic. = FDA-approved indications → Date = Patent/exclusivity expiry

Competitors share the same molecular target (GLP-1). Earlier expiry dates signal biosimilar/generic opportunities.

Drugs Similar to JANUVIA

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

ACARBOSE
ACARBOSE
1 shared
WATSON LABS
Shared indications:
Type 2 Diabetes
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ADLYXIN
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SANOFI-AVENTIS US
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BASAGLAR
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Eli Lilly
Shared indications:
Type 2 Diabetes
BRENZAVVY
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1 shared
THERACOSBIO
Shared indications:
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BRYNOVIN
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1 shared
AZURITY
Shared indications:
Type 2 Diabetes
CADUET
AMLODIPINE BESYLATE
1 shared
PHARMACIA
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COZAAR
LOSARTAN POTASSIUM
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Shared indications:
Type 2 Diabetes
CYCLOSET
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1 shared
VEROSCIENCE
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DIABETA
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1 shared
Sanofi
Shared indications:
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DUETACT
GLIMEPIRIDE
1 shared
Takeda
Shared indications:
Type 2 Diabetes
FARXIGA
DAPAGLIFLOZIN
1 shared
AstraZeneca
Shared indications:
Type 2 Diabetes
GLYBURIDE
GLYBURIDE
1 shared
IMPAX LABS INC
Shared indications:
Type 2 Diabetes
GLYXAMBI
EMPAGLIFLOZIN
1 shared
Boehringer Ingelheim
Shared indications:
Type 2 Diabetes
INPEFA
SOTAGLIFLOZIN
1 shared
LEXICON PHARMS INC
Shared indications:
Type 2 Diabetes
INVOKAMET
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1 shared
Johnson & Johnson
Shared indications:
Type 2 Diabetes
INVOKAMET XR
CANAGLIFLOZIN
1 shared
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Shared indications:
Type 2 Diabetes
JANUMET
METFORMIN HYDROCHLORIDE
1 shared
Merck
Shared indications:
Type 2 Diabetes
JANUMET XR
METFORMIN HYDROCHLORIDE
1 shared
Merck
Shared indications:
Type 2 Diabetes
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

JANUVIA FDA Label Details

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Indications & Usage

FDA Label (PDF)

JANUVIA ® is indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. JANUVIA is a dipeptidyl peptidase-4 (DPP-4) inhibitor indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. Limitations of Use: JANUVIA should not be used in patients with type 1 diabetes JANUVIA has not been studied in patients with a history of pancreatitis. Limitations of Use JANUVIA should not be used in patients with type 1 diabetes. JANUVIA has not been studied in patients with a history of pancreatitis....

JANUVIA Patents & Exclusivity

Latest Patent: May 2027

Patents (18 active)

US7326708*PED Expires May 24, 2027
US7326708 Expires Nov 24, 2026
+ 8 more patents
Source: FDA Orange Book

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.