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ClinicalTrials.gov 4 recruiting now early-phase tilt small index

Heart Arrest: early-phase trial registry

4 of 6 indexed Heart Arrest trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #2,866 of 28,707 conditions by registered trial count.

6 US clinical trials · 4 currently recruiting · #2,866 of 28,707 conditions by registered trial count

Heart Arrest: 6 US clinical trials tracked, 4 recruiting.

Heart Arrest is the subject of 6 registered US clinical trials on ClinicalTrials.gov, 4 of them currently open to new participants. 1 are in Phase 3-4 (later-stage) and 4 in Phase 1-2 (earlier-stage). The most active sponsor is Public Health - Seattle and King County, running 2 of these trials.

Enrollment posture brief

Registry condition heart-arrest

OPEN 4 | RECR 67% | LATE 1 | EARLY 4 | RANK #2866 | SPON 2

Nearest open-share peer: Adenocarcinoma of Lung (67% recruiting · 6 trials)

Heart Arrest (this)67%Acute Hypoxemic Respiratory 66.7%Abdominal Aortic Aneurysms50%Acupuncture50%Acute Lymphoblastic Leukemia50%
Open-enrollment share among volume-matched conditions near Heart Arrest

Heart Arrest lists 4 open slots (67% of 6 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 Heart Arrest 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. Heart Arrest is recruiting above its size-band peers.

    4 of 6 indexed trials (66.7%) 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 Heart Arrest research.

    Public Health - Seattle and King County accounts for 2 of 6 trials (33.3%). 4 distinct sponsors appear on at least one study for this condition label.

  3. Typical Heart Arrest enrolment sits around 305 participants.

    Median target enrolment is 305 among the 6 trials that report a genuine target (sentinel values excluded). 2 of those (33.3%) plan for fewer than 100 participants.

  4. Heart Arrest research is mostly interventional.

    6 interventional and 0 observational studies make up this index (100% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 24Phase 31

Phase Distribution

PhaseTrial count
Phase 2 4
Phase 3 1

Named interventions

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

dispatcher-assisted CPR instructions with compressions only Other
1 trials
dispatcher-assisted CPR with compressions & ventilations Other
1 trials
Group IV: In-person training + enhanced SE + support Behavioral
1 trials
Group III: In-person training + enhanced SE Behavioral
1 trials
Group II: Video training + enhanced self-efficacy (SE) Behavioral
1 trials
Group I: Video training Behavioral
1 trials
PulsePoint notification Other
1 trials
E-ICD Intervention Behavioral
1 trials

US sites by state

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

Washington 3 trials
California 2 trials
Ohio 1 trials

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

What to do with this Heart Arrest page

6 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 Heart Arrest condition card totals 6 registered trials; most-linked intervention dispatcher-assisted CPR instructions with compressions only; top US site state Washington. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.