Last reviewed · How we verify

PF-06439535

Pfizer · Phase 1 active Biologic ✓ Verified Jun 2026

PF-06439535 is a Biologic drug developed by Pfizer. It is currently in Phase 1 development. Also known as: PF-06439535, a potential biosimilar to bevacizumab.

PF-06439535 is a compound studied in combination with Bevacizumab, Cediranib, and Cediranib Maleate in clinical trials for various types of cancer, including Recurrent Glioblastoma and Clear Cell Adenocarcinoma. The specific indications and mechanisms of PF-06439535 are not explicitly stated in the provided facts, but it is being investigated in combination with these interventions for the listed conditions.

Likelihood of approval
12.6% 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).
  • Big-pharma sponsor +3.0pp
    Pfizer 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 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 namePF-06439535
Also known asPF-06439535, a potential biosimilar to bevacizumab
SponsorPfizer
ModalityBiologic
PhasePhase 1

Approved indications

No approved indications tracked.

Common side effects

No common side effects on file.

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 PF-06439535

What is PF-06439535?

PF-06439535 is a Biologic drug developed by Pfizer.

Who makes PF-06439535?

PF-06439535 is developed by Pfizer (see full Pfizer pipeline at /company/pfizer).

Is PF-06439535 also known as anything else?

PF-06439535 is also known as PF-06439535, a potential biosimilar to bevacizumab.

What development phase is PF-06439535 in?

PF-06439535 is in Phase 1.

Related

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