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ClinicalTrials.gov 13 recruiting now early-phase tilt

Pain, Acute: early-phase trial registry

13 of 32 indexed Pain, Acute trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #477 of 28,707 conditions by registered trial count.

32 US clinical trials · 13 currently recruiting · #477 of 28,707 conditions by registered trial count

Pain, Acute: 32 US clinical trials tracked, 13 recruiting.

Pain, Acute is the subject of 32 registered US clinical trials on ClinicalTrials.gov, 13 of them currently open to new participants. 4 are in Phase 3-4 (later-stage) and 9 in Phase 1-2 (earlier-stage). The most active sponsor is Antonios Likourezos, running 2 of these trials.

Enrollment posture brief

Registry condition pain-acute

OPEN 13 | RECR 41% | LATE 4 | EARLY 9 | RANK #477 | SPON 2

Nearest open-share peer: Pain Management (41% recruiting · 32 trials)

Acute Respiratory Distress S43.8%Pain, Acute (this)41%Cardiac Arrest37.5%Astigmatism28.1%Cardiovascular Risk Factor21.9%
Open-enrollment share among volume-matched conditions near Pain, Acute

Pain, Acute lists 13 open slots (41% of 32 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 Pain, Acute 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. Pain, Acute recruits in line with its size-band peers.

    13 of 32 indexed trials (40.6%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Pain, Acute trials is spread across many organizations.

    Antonios Likourezos accounts for 2 of 32 trials (6.3%). 30 distinct sponsors appear on at least one study for this condition label.

  3. Typical Pain, Acute enrolment sits around 100 participants.

    Median target enrolment is 100 among the 32 trials that report a genuine target (sentinel values excluded). 16 of those (50%) plan for fewer than 100 participants.

  4. Pain, Acute research is mostly interventional.

    27 interventional and 5 observational studies make up this index (84.4% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 14Phase 25Phase 31Phase 43

Open and recent trials

32 total, page 1 of 1

RECRUITING NA 204 participants

Empathy Through Pain Control: Lidocaine Paracervical Block for IUD Placements

University of California, San Diego

NCT06960317

RECRUITING 200 participants

Variability in Analgesic Response to Ibuprofen

University of Pennsylvania

NCT06539741

RECRUITING NA 150 participants

RCT of Pain Perception With Fast and Slow Tenaculum Application

Women and Infants Hospital of Rhode Island

NCT05458037

RECRUITING Phase 4 150 participants

Nebulized Ketamine to Nebulized Fentanyl for Treating Acute Painful Conditions in the ED

Antonios Likourezos

NCT06364540

RECRUITING NA 120 participants

Latinx Children and Surgery

University of California, Irvine

NCT06020677

RECRUITING Early Phase 1 100 participants

Brain Mechanisms Supporting Cannabis-induced Pain Relief

University of California, San Diego

NCT04982965

RECRUITING NA 100 participants

TENS Analgesia During Outpatient Urethral Bulking for Stress Urinary Incontinence.

University of Rochester

NCT06369922

RECRUITING Phase 1 80 participants

Phase 1 Study of SBS-147 in Healthy Adults

Sparian Biosciences

NCT07335913

RECRUITING NA 75 participants

Blue Light as an Anti-inflammatory and Analgesic Strategy in Thoracic Trauma

Rebecca E Kotcher, MD

NCT06626334

RECRUITING Phase 2 60 participants

Valacyclovir in Pain Management of Acute Apical Abscesses

University of California, San Francisco

NCT05266040

RECRUITING 60 participants

fMRI and IVCM Cornea Microscopy of CXL in Keratoconus

Boston Children's Hospital

NCT04439552

RECRUITING NA 40 participants

TENS Unit for Analgesia During IUD Insertion

Tufts Medical Center

NCT06240260

RECRUITING Phase 2 24 participants

Intranasal and Intravenous Oxytocin for Analgesia to Noxious Heat Pain

Wake Forest University Health Sciences

NCT07053774

ACTIVE NOT RECRUITING 200 participants

EHR Precision Drug Treatment in Neonates

Children's Hospital Medical Center, Cincinnati

NCT04850079

ACTIVE NOT RECRUITING Phase 2 62 participants

Pectoral Nerve Blocks (PECs) for Cardiovascular Implantable Electronic Device Placement

Beth Israel Deaconess Medical Center

NCT05283980

COMPLETED Phase 4 225 participants

Adult Oral Ibuprofen Study for ED Pain Patients

Antonios Likourezos

NCT03441269

COMPLETED 200 participants

Transverse Thoracic Plane Block in the Pediatric Cardiac Patient

Ochsner Health System

NCT04138745

COMPLETED Phase 3 147 participants

Comparison of Three Different Pain Blocks for Subjects Undergoing VATS (Video Assisted Thoracoscopic Surgery) Procedure.

Indiana University

NCT03151434

COMPLETED 135 participants

Real-World Experience of Patients Treated for Musculoskeletal Injuries With SAM in Routine Care

ZetrOZ

NCT05254470

COMPLETED NA 118 participants

Preoperative Psychosocial Support for Postoperative Recovery and Health: Mechanistic Substudy

University of Utah

NCT04520958

COMPLETED Phase 2 114 participants

Dose-Response Study of MR-107A-01 in The Treatment of Post-Surgical Dental Pain

Mylan

NCT04571515

COMPLETED NA 103 participants

Virtual Reality for Pain Management Study

University of Texas at Austin

NCT02997085

COMPLETED NA 100 participants

Vibration Analgesia in Propofol Infusion During Anesthesia Induction

Montefiore Medical Center

NCT03509857

COMPLETED NA 96 participants

Music to Reduce Patient Reported Pain During Intrauterine Device (IUD) Placement in the Office

Rutgers, The State University of New Jersey

NCT05068245

COMPLETED NA 62 participants

Virtual Reality Analgesia for Pediatric Burn Survivors

The University of Texas Medical Branch, Galveston

NCT03491657

COMPLETED NA 46 participants

The Effect of Touch on Pain and Anxiety During the Bone Marrow Biopsy Procedure

Dartmouth-Hitchcock Medical Center

NCT04935775

COMPLETED Early Phase 1 40 participants

Ultrasound Guided Serratus Anterior Plane Block in ED Patients With Rib Fractures

Rhode Island Hospital

NCT06299137

COMPLETED NA 36 participants

Online Mindfulness-based Intervention to Prevent Chronic Pain

Florida State University

NCT04848428

COMPLETED Phase 4 30 participants

OTC Naproxen and Acetaminophen Anti-Inflammatory Action in Dental Implant Patients

Hersh, Elliot V., DMD, MS, PhD

NCT04694300

COMPLETED Phase 1 30 participants

Pharmacokinetics and Pharmacodynamics of TRV130, Morphine, and Placebo in Healthy Subjects

Trevena

NCT02083315

COMPLETED NA 24 participants

Magic Bowl Virtual Reality Analgesia

University of Washington

NCT07192822

COMPLETED Phase 2 22 participants

RTMS for Treatment of Pain and Craving

Medical University of South Carolina

NCT03310138

Phase Distribution

PhaseTrial count
Phase 1 4
Phase 2 5
Phase 3 1
Phase 4 3

Named interventions

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

Placebo Drug
4 trials
Oral Ibuprofen Drug
1 trials
Two simultaneous brief thermal stimuli Behavioral
1 trials
One brief pain stimulus Behavioral
1 trials
No Virtual Reality Behavioral
1 trials
Virtual Reality distraction Behavioral
1 trials
music distraction (No VR) Behavioral
1 trials
virtual reality distraction (Yes VR) Behavioral
1 trials

US sites by state

Facility locations filed on Pain, Acute trials. A trial with sites in several states counts in each.

California 5 trials
New York 4 trials
Utah 3 trials
Pennsylvania 3 trials
Massachusetts 3 trials
Texas 2 trials
Rhode Island 2 trials
Washington 1 trials

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

What to do with this Pain, Acute page

32 registered trials, 13 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 Pain, Acute condition card totals 32 registered trials; most-linked intervention Placebo; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.