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Ad26.ZEBOV-Batch #2

Crucell Holland BV · Phase 3 active Biologic Under review

Ad26.ZEBOV-Batch #2 is a Viral vector vaccine Biologic drug developed by Crucell Holland BV. It is currently in Phase 3 development for Ebola virus disease prevention.

Ad26.ZEBOV is a replication-incompetent adenovirus serotype 26 vector expressing the Ebola virus glycoprotein that primes the immune system to recognize and respond to Ebola virus infection.

Ad26.ZEBOV-Batch #2 is an intervention being studied in a clinical trial for its safety, tolerability, and immunogenicity in healthy adult participants. The exact mechanism of Ad26.ZEBOV-Batch #2 is currently unknown.

Likelihood of approval
59.3% 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).
  • Immunology slight uplift +1.0pp
    Mature endpoint landscape (ACR, DAS28, PASI) makes immunology approvals slightly more predictable.
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 nameAd26.ZEBOV-Batch #2
SponsorCrucell Holland BV
Drug classViral vector vaccine
TargetEbola virus glycoprotein (GP)
ModalityBiologic
Therapeutic areaImmunology / Infectious Disease
PhasePhase 3

Mechanism of action

This vaccine uses a non-replicating adenoviral vector to deliver genetic instructions for producing the Ebola virus surface glycoprotein, triggering both cellular and humoral immune responses. The Ad26 vector is designed to be safe and immunogenic while avoiding integration into host DNA. It is typically administered as part of a heterologous prime-boost regimen with other Ebola vaccine candidates to enhance protective immunity.

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 Ad26.ZEBOV-Batch #2

What is Ad26.ZEBOV-Batch #2?

Ad26.ZEBOV-Batch #2 is a Viral vector vaccine drug developed by Crucell Holland BV, indicated for Ebola virus disease prevention.

How does Ad26.ZEBOV-Batch #2 work?

Ad26.ZEBOV is a replication-incompetent adenovirus serotype 26 vector expressing the Ebola virus glycoprotein that primes the immune system to recognize and respond to Ebola virus infection.

What is Ad26.ZEBOV-Batch #2 used for?

Ad26.ZEBOV-Batch #2 is indicated for Ebola virus disease prevention.

Who makes Ad26.ZEBOV-Batch #2?

Ad26.ZEBOV-Batch #2 is developed by Crucell Holland BV (see full Crucell Holland BV pipeline at /company/crucell-holland-bv).

What drug class is Ad26.ZEBOV-Batch #2 in?

Ad26.ZEBOV-Batch #2 belongs to the Viral vector vaccine class. See all Viral vector vaccine drugs at /class/viral-vector-vaccine.

What development phase is Ad26.ZEBOV-Batch #2 in?

Ad26.ZEBOV-Batch #2 is in Phase 3.

What are the side effects of Ad26.ZEBOV-Batch #2?

Common side effects of Ad26.ZEBOV-Batch #2 include Injection site pain or erythema, Fatigue, Myalgia, Headache, Fever.

What does Ad26.ZEBOV-Batch #2 target?

Ad26.ZEBOV-Batch #2 targets Ebola virus glycoprotein (GP) and is a Viral vector vaccine.

Related

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