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PI3K inhibitor BYL719

Vanderbilt-Ingram Cancer Center · Phase 1 active Small molecule ✓ Verified May 2026 Quality 20/100

PI3K inhibitor BYL719 is a Small molecule drug developed by Vanderbilt-Ingram Cancer Center. It is currently in Phase 1 development. Also known as: BYL719, a-specific phosphoinositide 3-kinase inhibitor BYL719, BYL719, phosphoinositide 3-kinase inhibitor BYL719.

BYL719, also known as alpelisib, is a small molecule PI3K inhibitor used to treat various conditions, including breast cancer, metastatic breast cancer, and solid tumors. It has been studied in combination with other treatments, such as nab-paclitaxel, for locally recurrent or metastatic HER2-negative breast cancer.

Likelihood of approval
9.6% vs 9.6% industry baseline
If approved by FDA: likely 2033–2036
Steps remaining: Phase 2 → Phase 3 → NDA/BLA submission
Confidence: Medium
Why this estimate
  • Baseline phase 1 → approval rate +9.6pp
    Industry-wide phase 1 drugs reach approval ~9.6% 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 2033–2036
EMA EU 2034–2037 +0.7 yr
MHRA GB 2034–2037 +0.7 yr
Health Canada CA 2034–2038 +0.9 yr
TGA AU 2034–2038 +1.2 yr
PMDA JP 2034–2038 +1.5 yr
NMPA CN 2035–2039 +2.3 yr
MFDS KR 2034–2038 +1.4 yr
CDSCO IN 2034–2039 +1.8 yr
ANVISA BR 2035–2039 +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 namePI3K inhibitor BYL719
Also known asBYL719, a-specific phosphoinositide 3-kinase inhibitor BYL719, BYL719, phosphoinositide 3-kinase inhibitor BYL719
SponsorVanderbilt-Ingram Cancer Center
ModalitySmall molecule
PhasePhase 1

Approved indications

No approved indications tracked.

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 PI3K inhibitor BYL719

What is PI3K inhibitor BYL719?

PI3K inhibitor BYL719 is a Small molecule drug developed by Vanderbilt-Ingram Cancer Center.

Who makes PI3K inhibitor BYL719?

PI3K inhibitor BYL719 is developed by Vanderbilt-Ingram Cancer Center (see full Vanderbilt-Ingram Cancer Center pipeline at /company/vanderbilt-ingram-cancer-center).

Is PI3K inhibitor BYL719 also known as anything else?

PI3K inhibitor BYL719 is also known as BYL719, a-specific phosphoinositide 3-kinase inhibitor BYL719, BYL719, phosphoinositide 3-kinase inhibitor BYL719.

What development phase is PI3K inhibitor BYL719 in?

PI3K inhibitor BYL719 is in Phase 1.

What are the side effects of PI3K inhibitor BYL719?

Common side effects of PI3K inhibitor BYL719 include Aspartate Aminotransferase Increased, Hyperglycemia, Peripheral Sensory Neuropathy, Anemia, Fatigue, Alkaline Phosphatase Increased.

Related

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