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ClinicalTrials.gov 4 recruiting now small index

TIA clinical trials

4 of 5 indexed TIA trials are currently recruiting.

Corpus placement: #3,391 of 28,707 conditions by registered trial count.

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5 US clinical trials · 4 currently recruiting · #3,391 of 28,707 conditions by registered trial count

TIA: 5 US clinical trials tracked, 4 recruiting.

TIA is the subject of 5 registered US clinical trials on ClinicalTrials.gov, 4 of them currently open to new participants. The most active sponsor is Cook Research Incorporated, running 1 of these trials.

Enrollment posture brief

Registry condition tia

OPEN 4 | RECR 80% | LATE 0 | EARLY 0 | RANK #3391 | SPON 1

Volume-matched condition peers

Nearest open-share peer: Acute Leukemia of Ambiguous Lineage (80% recruiting · 10 trials)

Ablation80%ACL Reconstruction80%TIA (this)80%Abuse, Drug60%Acceptability60%
Open-enrollment share among volume-matched conditions near TIA

TIA lists 4 open slots (80% of 5 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for TIA 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. TIA is recruiting above its size-band peers.

    4 of 5 indexed trials (80%) 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.

  2. One sponsor concentrates TIA research.

    Cook Research Incorporated accounts for 1 of 5 trials (20%). 5 distinct sponsors appear on at least one study for this condition label.

  3. Typical TIA enrolment sits around 250 participants.

    Median target enrolment is 250 among the 5 trials that report a genuine target (sentinel values excluded). 1 of those (20%) plan for fewer than 100 participants.

  4. TIA research leans observational.

    1 interventional and 4 observational studies make up this index (20% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase Distribution

Phase data not available

Top Sponsors

Cook Research Incorporated 1 trials
University of California, Davis 1 trials
University of Cincinnati 1 trials
University of California, Los Angeles 1 trials
Stanford University 1 trials

Named interventions

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

Medical Imaging Diagnostic test
1 trials
Use of Omron Home Blood Pressure Cuff Behavioral
1 trials
Beacon Tip Catheters Device
1 trials

US sites by state

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

California 3 trials
Ohio 1 trials
Connecticut 1 trials

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

Related

Read our methodology - how this data is sourced, computed, and verified.

What to do with this TIA page

5 registered trials, 4 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 TIA condition card totals 5 registered trials; most-linked intervention Medical Imaging; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.