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ClinicalTrials.gov 41 recruiting now official registry

Critical Illness clinical trials

41 of 92 indexed Critical Illness trials are currently recruiting.

92 US clinical trials · 41 currently recruiting

Critical Illness is the subject of 92 registered US clinical trials on ClinicalTrials.gov, 41 of them currently open to new participants. 6 are in Phase 3-4 (later-stage) and 8 in Phase 1-2 (earlier-stage). The most active sponsor is Vanderbilt University Medical Center, running 6 of these trials.

The research picture

Critical Illness has 92 registered US clinical trials, 41 of them open to new participants right now, about 45% of the total.

41
recruiting participants now
45%
of trials open to enrollment
6
in Phase 3–4 (later-stage)
6
top sponsor: Vanderbilt University Medical Center
Phase 13Phase 25Phase 36

Active & Recent Trials

92 total, page 2 of 2

ACTIVE NOT RECRUITING 500 participants

Long Term Outcomes of Patients With COVID-19

University of Chicago

NCT04360538

ACTIVE NOT RECRUITING 432 participants

Illuminating Neuropsychological Dysfunction and Systemic Inflammatory Mechanisms Gleaned After Hospitalization in Trauma-ICU Study

Vanderbilt University Medical Center

NCT03098459

ACTIVE NOT RECRUITING 312 participants

Measuring Outcomes of Activity in Intensive Care

Vanderbilt University Medical Center

NCT03115840

ACTIVE NOT RECRUITING NA 300 participants

Strategy to Avoid Excessive Oxygen Using an Autonomous Oxygen Titration Intervention

University of Colorado, Denver

NCT06374225

ACTIVE NOT RECRUITING NA 60 participants

Assessing The Effects of Exercise, Protein, and Electric Stimulation On Intensive Care Unit Patients Outcomes

University of Maryland, Baltimore

NCT02509520

ACTIVE NOT RECRUITING NA 40 participants

Optimal Timing of Computerized Cognitive Training for Older Intensive Care Unit Survivors

University of Washington

NCT05467410

ACTIVE NOT RECRUITING 24 participants

Driving Rehabilitation and Innovation for Evaluating Risk in Post-Intensive Care Unit Survivors

Baylor Research Institute

NCT05999903

COMPLETED NA 14,000 participants

Saline Against Lactated Ringers or Plasmalyte in the Emergency Department

Vanderbilt University

NCT02614040

COMPLETED NA 10,421 participants

Isotonic Solutions and Major Adverse Renal Events Trial in the Non-Medical Intensive Care Unit (SMART-SURG)

Vanderbilt University

NCT02547779

COMPLETED NA 1,971 participants

Understanding Community Considerations, Opinions, Values, Impacts, and Decisions for COVID-19

University of California, Los Angeles

NCT04373135

COMPLETED NA 1,917 participants

Study of Therapeutic Exercise in Acute Respiratory Failure to Improve Neuromuscular Disability Trial

University of Pennsylvania

NCT03863470

COMPLETED NA 1,329 participants

The Effect of Higher Protein Dosing in Critically Ill Patients

Clinical Evaluation Research Unit at Kingston General Hospital

NCT03160547

COMPLETED Phase 3 800 participants

Oral Care to Reduce Mouth and Throat Infections in Critically Ill Patients

National Institutes of Health Clinical Center (CC)

NCT00078663

COMPLETED Phase 3 500 participants

Supplemental Enteral Protein in Critical Illness

University of Washington

NCT03170401

COMPLETED NA 451 participants

Improving Family Meetings in the Pediatric Cardiac Intensive Care Unit

Children's Hospital of Philadelphia

NCT03749330

COMPLETED NA 413 participants

Wake Forest Post-ICU Telehealth (WFIT) Program

Wake Forest University Health Sciences

NCT04576065

COMPLETED NA 410 participants

Daily Sedative Interruption in Critically Ill Patients Being Managed With a Sedation Protocol.

Mount Sinai Hospital, Canada

NCT00675363

COMPLETED NA 390 participants

Family Presence on Multidisciplinary Patient Care Rounds in ICU

Rutgers, The State University of New Jersey

NCT05449990

COMPLETED NA 302 participants

Effect of Intensivist Communication on Surrogate Prognosis Interpretation

Johns Hopkins University

NCT04239209

COMPLETED NA 299 participants

The Clinical Informationist: Does the Model Work

Vanderbilt University

NCT00226291

COMPLETED NA 276 participants

Pediatric Continuity Care Intensivist

Children's Hospital of Philadelphia

NCT02146573

COMPLETED Phase 2 274 participants

Hypovitaminosis D in Neurocritical Patients

University of Utah

NCT02881957

COMPLETED NA 274 participants

Psychological Support Based on Positive Suggestions (PSBPS) on Mental Health Morbidity and Cognitive Function

Mayo Clinic

NCT04045210

COMPLETED 250 participants

Ultrasound Measurement of Reactive Hyperemia in Critical Care

University of Rochester

NCT01726595

COMPLETED NA 209 participants

Time Limited Trials to Reduce Non-Beneficial Intensive Care Unit Treatments

Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center

NCT04181294

COMPLETED NA 151 participants

A Needs-focused Palliative Care Intervention for Older Adults in ICUs

Duke University

NCT04414787

COMPLETED Phase 3 150 participants

Efficacy and Mechanisms of GLN Dipeptide in the SICU

Emory University

NCT00248638

COMPLETED NA 120 participants

The Diagnosis and Incidence of Critical Illness Polyneuromyopathy in Medical and Neurosurgical ICU Patients

University of Colorado, Denver

NCT02634658

COMPLETED NA 111 participants

Assessing the Impact of LIve Music in the Intensive Care Unit (ICU) to Improve Care for Critically Ill Patients

Vanderbilt University Medical Center

NCT03948984

COMPLETED NA 109 participants

Anticipating Decline and Providing Therapy

Wake Forest University Health Sciences

NCT06182995

COMPLETED Phase 2 100 participants

Practical Anemia Bundle for SusTained Blood Recovery

Mayo Clinic

NCT05167734

COMPLETED Phase 2 94 participants

Inulin for Infections in the Intensive Care Unit

Columbia University

NCT03865706

COMPLETED 75 participants

Using Ultrasound to Study Respiratory Muscle Function in Critically Ill Patients

Wake Forest University Health Sciences

NCT03139695

COMPLETED NA 66 participants

Post-ICU Palliative Care Intervention (PIPCI) Trial

Columbia University

NCT03456323

COMPLETED NA 58 participants

Novel Arm Restraint For Critically Ill Patients To Reduce Immobility, Sedation, Agitation and Cognitive Impairment

University of Vermont

NCT04067622

COMPLETED NA 50 participants

Tolerance and Efficacy of a Predigested, High Protein, High Omega 3 Fat Enteral Feeding Formula Versus a Standard Formula In Multiple Intensive Care Unit Settings

Columbia University

NCT01448135

COMPLETED 45 participants

Methionine Metabolism in Enterally Fed Pediatric Sepsis

The Cleveland Clinic

NCT01889264

COMPLETED NA 40 participants

Personalized Nutrition Delivery to Improve Resilience in Older Adult Trauma Patients

Duke University

NCT05544162

COMPLETED NA 34 participants

Intraosseous Catheter Confirmation Study

Rutgers, The State University of New Jersey

NCT03908879

COMPLETED NA 32 participants

Optimizing Outcomes With Physical Therapy Treatment for IndividuALs Surviving an ICU Admission for Covid-19

University of Kentucky

NCT04412330

COMPLETED 22 participants

Comparing Cardiac Output Measurements in Critically Ill Children Using USCOM and Transthoracic ECHO

University of North Carolina, Chapel Hill

NCT01460329

COMPLETED NA 10 participants

Feasibility of Upright Bed Position in ARDS Patients

Wake Forest University Health Sciences

NCT02160561

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Phase Distribution

PhaseTrial count
Phase 1 3
Phase 2 5
Phase 3 6

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

Reading the Critical Illness Trial Landscape

92 indexed Critical Illness studies · 41 recruiting (45%).

Phase mix: 6 late (III/IV) vs 8 early (I/II).

Top sponsor: Vanderbilt University Medical Center (6 trials), 9 others listed. 42 shown below, recruiting first.

How to read this condition's trial landscape

That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.

Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.

All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation, eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.

Frequently Asked Questions

How many clinical trials are there for Critical Illness?

PlainTrial tracks 92 US clinical trials for Critical Illness, of which 41 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Critical Illness?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

Verify with NIH →

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial for this condition, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.