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Comparator: Sitagliptin

Merck Sharp & Dohme LLC · Phase 3 active Small molecule ✓ Verified May 2026

Comparator: Sitagliptin is a DPP-4 inhibitor Small molecule drug developed by Merck Sharp & Dohme LLC. It is currently in Phase 3 development for Type 2 diabetes mellitus. Also known as: GLUCOPHAGE®, MK0431, Januvia.

Sitagliptin inhibits dipeptidyl peptidase-4 (DPP-4), prolonging the activity of incretin hormones to increase insulin secretion and decrease glucagon in response to meals.

Sitagliptin is a small molecule dipeptidyl peptidase 4 inhibitor used to treat Type 2 Diabetes Mellitus. It has been compared to a placebo and insulin glargine in clinical trials for this indication.

Likelihood of approval
61.3% vs 58.3% industry baseline
If approved by FDA: likely 2028–2030
Steps remaining: NDA/BLA submission
Confidence: High
Why this estimate
  • Baseline phase 3 → approval rate +58.3pp
    Industry-wide phase 3 drugs reach approval ~58.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
  • Big-pharma sponsor +3.0pp
    Merck Sharp & Dohme LLC is a top-20 pharma sponsor — historical approval rates run ~3pp above average due to scale, regulatory experience, and trial-design quality.
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2028–2030
EMA EU 2029–2031 +0.7 yr
MHRA GB 2029–2031 +0.7 yr
Health Canada CA 2029–2032 +0.9 yr
TGA AU 2029–2032 +1.2 yr
PMDA JP 2029–2032 +1.5 yr
NMPA CN 2030–2033 +2.3 yr
MFDS KR 2029–2032 +1.4 yr
CDSCO IN 2029–2033 +1.8 yr
ANVISA BR 2030–2033 +2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic nameComparator: Sitagliptin
Also known asGLUCOPHAGE®, MK0431, Januvia
SponsorMerck Sharp & Dohme LLC
Drug classDPP-4 inhibitor
TargetDPP-4 (dipeptidyl peptidase-4)
ModalitySmall molecule
Therapeutic areaDiabetes
PhasePhase 3

Mechanism of action

Sitagliptin is a DPP-4 inhibitor that prevents the degradation of glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP). By extending the half-life of these incretin hormones, the drug enhances glucose-dependent insulin secretion and suppresses glucagon release, thereby lowering blood glucose levels in a glucose-dependent manner with minimal hypoglycemia risk.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

Frequently asked questions about Comparator: Sitagliptin

What is Comparator: Sitagliptin?

Comparator: Sitagliptin is a DPP-4 inhibitor drug developed by Merck Sharp & Dohme LLC, indicated for Type 2 diabetes mellitus.

How does Comparator: Sitagliptin work?

Sitagliptin inhibits dipeptidyl peptidase-4 (DPP-4), prolonging the activity of incretin hormones to increase insulin secretion and decrease glucagon in response to meals.

What is Comparator: Sitagliptin used for?

Comparator: Sitagliptin is indicated for Type 2 diabetes mellitus.

Who makes Comparator: Sitagliptin?

Comparator: Sitagliptin is developed by Merck Sharp & Dohme LLC (see full Merck Sharp & Dohme LLC pipeline at /company/merck).

Is Comparator: Sitagliptin also known as anything else?

Comparator: Sitagliptin is also known as GLUCOPHAGE®, MK0431, Januvia.

What drug class is Comparator: Sitagliptin in?

Comparator: Sitagliptin belongs to the DPP-4 inhibitor class. See all DPP-4 inhibitor drugs at /class/dpp-4-inhibitor.

What development phase is Comparator: Sitagliptin in?

Comparator: Sitagliptin is in Phase 3.

What are the side effects of Comparator: Sitagliptin?

Common side effects of Comparator: Sitagliptin include Nasopharyngitis, Headache, Upper respiratory tract infection, Hypoglycemia.

What does Comparator: Sitagliptin target?

Comparator: Sitagliptin targets DPP-4 (dipeptidyl peptidase-4) and is a DPP-4 inhibitor.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing