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3-Propylxanthine (ENPROFYLLINE)

Phase 2 active Small molecule

3-Propylxanthine (generic name: ENPROFYLLINE) is a enprofylline drug. It is currently in Phase 2 development.

Enprofylline works by blocking the adenosine receptor A2b, which helps to increase blood flow and reduce inflammation.

3-Propylxanthine, also known as enprofylline, is a small molecule drug that targets the adenosine receptor A2b. It belongs to the enprofylline drug class and is used to treat various conditions, although its approved indications are currently unknown. The commercial status of enprofylline is also unclear, with information on its patent status and generic availability not readily available. Key safety considerations include its relatively short half-life of 1.8 hours, although further details on its bioavailability and potential side effects are lacking. As a result, more research is needed to fully understand the properties and applications of enprofylline.

Likelihood of approval
15.3% vs 15.3% industry baseline
If approved by FDA: likely 2031–2034
Steps remaining: Phase 3 → NDA/BLA submission
Confidence: Medium
Why this estimate
  • Baseline phase 2 → approval rate +15.3pp
    Industry-wide phase 2 drugs reach approval ~15.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2031–2034
EMA EU 2032–2035 +0.7 yr
MHRA GB 2032–2035 +0.7 yr
Health Canada CA 2032–2036 +0.9 yr
TGA AU 2032–2036 +1.2 yr
PMDA JP 2032–2036 +1.5 yr
NMPA CN 2033–2037 +2.3 yr
MFDS KR 2032–2036 +1.4 yr
CDSCO IN 2032–2037 +1.8 yr
ANVISA BR 2033–2037 +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 nameENPROFYLLINE
Drug classenprofylline
TargetAdenosine receptor A3, Adenosine receptor A1, Adenosine receptor A2a
ModalitySmall molecule
Therapeutic areaHematology
PhasePhase 2

Mechanism of action

Think of adenosine like a brake pedal in your car. When adenosine binds to its receptor, it slows down the flow of blood. Enprofylline is like a brake pad remover - it takes the adenosine out of the way, allowing blood to flow more freely and reducing inflammation in the process.

Approved indications

No approved indications tracked.

Common side effects

No common side effects on file.

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 3-Propylxanthine

What is 3-Propylxanthine?

3-Propylxanthine (ENPROFYLLINE) is a enprofylline drug.

How does 3-Propylxanthine work?

Enprofylline works by blocking the adenosine receptor A2b, which helps to increase blood flow and reduce inflammation.

What is the generic name of 3-Propylxanthine?

ENPROFYLLINE is the generic (nonproprietary) name of 3-Propylxanthine.

What drug class is 3-Propylxanthine in?

3-Propylxanthine belongs to the enprofylline class. See all enprofylline drugs at /class/enprofylline.

What development phase is 3-Propylxanthine in?

3-Propylxanthine is in Phase 2.

What does 3-Propylxanthine target?

3-Propylxanthine targets Adenosine receptor A3, Adenosine receptor A1, Adenosine receptor A2a and is a enprofylline.

Related

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