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ClinicalTrials.gov enrollment closed later-stage tilt small index

Viral Vaccines: later-stage trial registry

A small indexed set (2 trials) with no open enrollment listed right now.

Corpus placement: #7,188 of 28,707 conditions by registered trial count.

2 US clinical trials · none currently recruiting · #7,188 of 28,707 conditions by registered trial count

Viral Vaccines: 2 US clinical trials tracked, none currently recruiting.

Viral Vaccines is the subject of 2 registered US clinical trials on ClinicalTrials.gov, none currently recruiting. 1 are in Phase 3-4 (later-stage) and 0 in Phase 1-2 (earlier-stage). The most active sponsor is Abramson Cancer Center at Penn Medicine, running 1 of these trials.

Enrollment posture brief

Registry condition viral-vaccines

OPEN 0 | RECR 0% | LATE 1 | EARLY 0 | RANK #7188 | SPON 1

Nearest open-share peer: Accelerated Phase Chronic Myelogenous Leukemia (0% recruiting · 12 trials)

Ablation80%ACL Reconstruction80%Abuse, Drug60%Acceptability60%Viral Vaccines (this)0%
Open-enrollment share among volume-matched conditions near Viral Vaccines

Viral Vaccines has no open enrollment in this registry pull (2 archived studies). Peers show how other volume-matched labels compare on open share. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Viral Vaccines on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Viral Vaccines is recruiting below its size-band peers.

    0 of 2 indexed trials (0%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

Phase 41

Phase Distribution

PhaseTrial count
Phase 4 1

Named interventions

Most-linked intervention names on Viral Vaccines records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Inactivated influenza vaccine Biological
1 trials
Zoster Vaccine Recombinant Biological
1 trials
SARS-CoV-2 vaccine Biological
1 trials
Influenza vaccination Biological
1 trials

US sites by state

Facility locations filed on Viral Vaccines trials. A trial with sites in several states counts in each.

Pennsylvania 2 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Viral Vaccines page

2 registered trials, 0 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Viral Vaccines condition card totals 2 registered trials; most-linked intervention Inactivated influenza vaccine; top US site state Pennsylvania. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.