Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT04020874 · ClinicalTrials.gov registry record · NA
Reducing Head Impact Exposure in Hawaii High School Football
A NA study, sponsored by University of Massachusetts, Lowell.
- Completed
- Registry status
- NA
- Development phase
- 496
- Enrollment target
NCT04020874: Completed NA study, sponsored by University of Massachusetts, Lowell.
NCT04020874 is a NA study that has completed, run by University of Massachusetts, Lowell. The registered enrollment target is 496 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (65% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04020874, a NA study, has completed, sponsored by University of Massachusetts, Lowell.
- COMPLETED
- Registry status
- NA
- Development phase
- 496 participants
- Enrollment target
Study Summary
This three-year study will determine the effectiveness of a helmetless tackling training intervention to decrease head impact exposure in Hawaiian high school football players.
Primary Outcome
The number, force, and location of impacts to the head/helmet of a participant during practices and games as measured by InSite (Riddell)
Interventions
- BEHAVIORAL HuTT-2x
- BEHAVIORAL HuTT-4x
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 496 participants |
| Start Date | 2019-07-22 |
| Est. Completion | 2023-01-25 |
| Phase | NA |
What the finished NCT04020874 record still lists
NCT04020874 is an interventional study that assigns participants to a tested intervention. The registered 496 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (65% lower).
The record links to 0 conditions, and to 2 interventions - of which HuTT-2x is the first listed.
NCT04020874 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04020874 about?
NCT04020874 is a clinical study titled "Reducing Head Impact Exposure in Hawaii High School Football". This three-year study will determine the effectiveness of a helmetless tackling training intervention to decrease head impact exposure in Hawaiian high school football players.
What is the current status of trial NCT04020874?
This trial is currently completed. It is a NA study. The enrollment target is 496 participants. The study started on 2019-07-22. Estimated completion is 2023-01-25.
What interventions are being tested in trial NCT04020874?
The interventions under investigation include: HuTT-2x (BEHAVIORAL), HuTT-4x (BEHAVIORAL).
Who is sponsoring clinical trial NCT04020874?
This trial is sponsored by University of Massachusetts, Lowell, which has 9 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04020874's enrollment target sits among peer trials
496 213th of 2000 higher than 1,788 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT05283720 · 496 participants · Phase 2
A Study to Evaluate Adverse Events and Change in Disease Activity of Subcutaneous (SC) Epcoritamab in Combination With Oral and Intravenous Anti-Neoplastic Agents in Adult Participants With Non-Hodgkin Lymphoma
- NCT06417775 · 496 participants · Phase 3
Study of Oral Ubrogepant to Assess Adverse Events and Change in Disease Activity in Adult Participants With Menstrual Migraine
- NCT06778447 · 496 participants · NA
Clinical Trial Evaluating the Safety and Efficacy of Nucleus Pulposus Allograft in Participants With Degenerative Disc Disease
- NCT03175224 · 497 participants · Phase 2
APL-101 Study of Subjects With NSCLC With c-Met EXON 14 Skip Mutations and c-Met Dysregulation Advanced Solid Tumors
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI