ClinicalTrials.gg
RecruitingNCT02991690Updated Aug 26, 2026

Systemic Hypothermia in Acute Cervical Spinal Cord Injury

An interventional study of Alsius Icy CoolGuard® Catheter in Spinal Cord Injury, Acute, sponsored by University of Miami. Recruiting at 7 sites in United States. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-08-26.

Sponsored by University of Miami · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Aug 2017; still recruiting 9 years 3 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

This study is a prospective multi-center trial designed to determine the safety profile and efficacy of modest (33ºC) intravascular hypothermia following acute cervical (C1 to C8) Spinal Cord Injury (SCI).

Read the detailed description

The purpose of the proposed clinical trial is to demonstrate the safety and efficacy of intravascular hypothermia as part of the early hospital management and treatment for acute cervical SCI. Each year in the US, there are over 11,000 new cases of para- and quadriplegia and 100,000 new cases of partial but permanent neurological losses due to acute SCI. Thus the potential for clinical hypothermia following SCI to improve neurological outcome has significant value. Many patients suffering SCI become permanently dependent on caretakers and become a financial liability to both the family and society. Hypothermia has the potential to improve outcome so that more patients suffering SCI can regain independent motor and sensory function and remain economically productive members of society. The use of modest hypothermia through intravascular cooling may ultimately lead to better care of the patient with acute SCI and may also have more widespread uses in patients presenting with stroke or cardiac arrest. In the long-term, this research may lend support to the use of hypothermia that could in turn save money for the patients, hospitals, the government and society as a whole.

02

Conditions studied

  • Spinal Cord Injury, Acute

Keywords

  • Hypothermia
  • Cervical Spinal Cord Injury
  • Trauma
03

In context

Spinal Cord Injuries

2,025 studies on the registry are indexed under Spinal Cord Injuries; 537 are open to participants now.

This study's planned enrollment of 120 is above the median of 24 across 1,633 interventional studies indexed under Spinal Cord Injuries.

Browse Spinal Cord Injuries studies →

Lead sponsor

University of Miami is the lead sponsor of 840 studies on the registry; 164 are open to participants now.

Of its 115 completed or terminated interventional studies of FDA-regulated products, 97 (84%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 18 - 70 years of age
  • AIS Grade A - C
  • Glasgow Coma Scale ≥14
  • Able to start hypothermia treatment within 24 hours of injury
  • Non-penetrating injury. Patients urgently taken to the operating room for surgical reduction may also be included.

Exclusion criteria

Exclusion Criteria:

  • Age > 70 years
  • AIS Grade D
  • Hyperthermia on admission (>38.5ºC)
  • Severe systemic injury
  • Severe bleeding
  • Pregnancy
  • Coagulopathy
  • Thrombocytopenia
  • Known prior severe cardiac history
  • Blood dyscrasia
  • Pancreatitis
  • Reynaud's syndrome
  • Cord transection
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
120 participants (estimated)

Study arms

  • Experimental
    Intravascular Hypothermia

    Intravascular hypothermia will be initiated within 24 hours post-injury and 33 degrees Celsius will be maintained for 48 hours.

    Device: Alsius Icy CoolGuard® Catheter

  • No intervention
    Control

    Standard of care medical treatment, specific to each individual.

Interventions

  • DeviceAlsius Icy CoolGuard® Catheter

    To deliver intravascular hypothermia, an Alsius Icy CoolGuard® catheter (US Food and Drug Administration approved, Premarket Notification \[510(k), K030421\]; Alsius Corporation, Irvine, California) will be inserted through the femoral vein using a sterile technique. Patients will be cooled at a maximum rate (2-2.5 ºC/hr.) until they reach the target temperature (T 33 ºC), which will be maintained for 48 hours, and then re-warmed at 0.1 ºC/hr. until normothermia (T 37ºC) is achieved.

06

What researchers measure

Primary outcomes

  1. Neurological improvement on American Spinal Injury Association (ASIA)

    Improvement in ASIA Impairment Scale (AIS) after modest hypothermia. ASIA Motor Score: 0-100, with higher scores indicating better motor function

    Time frame: Between baseline and 12 months

  2. Neurological improvement on ASIA

    Improvement in ASIA motor score after modest hypothermia. ASIA Motor Score: 0-100, with higher scores indicating better motor function

    Time frame: Between baseline and 12 months

Secondary outcomes

  1. Functional improvement in Functional Independence Measure (FIM)

    Functional improvement in FIM after modest hypothermia. FIM score 18-126, with higher scores indicating greater functional independence

    Time frame: 12 months

  2. Functional improvement in Spinal Cord Independence Measure (SCIM)

    Functional improvement in SCIM after modest hypothermia. SCIM score 0-100, with higher scores indicating greater independence in activities of daily living

    Time frame: 12 months

07

Study locations

5 of 7 sites recruiting
  • HonorHealth Research Institute with Barrow Brain and Spine
    Phoenix, Arizona 85027, United States
    Recruiting
  • Jackson Memorial Hospital
    Miami, Florida 33136, United States
    Recruiting
    • George Jimsheleishvili, MD · Contact305-243-4781
  • Emory University School of Medicine
    Atlanta, Georgia 30303-3049, United States
    Terminated

    Not enrolling at this site.

  • Indiana University School of Medicine
    Indianapolis, Indiana 46202-1000, United States
    Terminated

    Not enrolling at this site.

  • University of Maryland School of Medicine
    Baltimore, Maryland 21201, United States
    Recruiting
  • Thomas Jefferson University
    Philadelphia, Pennsylvania 19107-5125, United States
    Recruiting
    • James Harrop, MD · Contact
  • Prisma Health - University of South Carolina
    Columbia, South Carolina 29203, United States
    Recruiting
08

References and documents

Publications

  • Levi AD, Casella G, Green BA, Dietrich WD, Vanni S, Jagid J, Wang MY. Clinical outcomes using modest intravascular hypothermia after acute cervical spinal cord injury. Neurosurgery. 2010 Apr;66(4):670-7. doi: 10.1227/01.NEU.0000367557.77973.5F. PubMed 20190669 ↗
  • Dididze M, Green BA, Dietrich WD, Vanni S, Wang MY, Levi AD. Systemic hypothermia in acute cervical spinal cord injury: a case-controlled study. Spinal Cord. 2013 May;51(5):395-400. doi: 10.1038/sc.2012.161. Epub 2012 Dec 18. PubMed 23247015 ↗
  • Levi AD, Green BA, Wang MY, Dietrich WD, Brindle T, Vanni S, Casella G, Elhammady G, Jagid J. Clinical application of modest hypothermia after spinal cord injury. J Neurotrauma. 2009 Mar;26(3):407-15. doi: 10.1089/neu.2008.0745. PubMed 19271964 ↗
  • Vedantam A, Jimsheleishvili G, Harrop JS, Alberga LR, Ahmad FU, Murphy RK, Jackson JB 3rd, Rodgers RB, Levi AD. A prospective multi-center study comparing the complication profile of modest systemic hypothermia versus normothermia for acute cervical spinal cord injury. Spinal Cord. 2022 Jun;60(6):510-515. doi: 10.1038/s41393-021-00747-w. Epub 2022 Jan 10. PubMed 35013548 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2017 (actual). Primary completion is estimated for Sep 2027, 121 months after the start.

Of 790 non-industry interventional studies with no phase under Spinal Cord Injuries, half reached primary completion within 37 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 65. This study's planned 121 months is above that.

Counting every sponsor, half of 839 studies reached it within 36 months; a quarter within 17 and three quarters within 64.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 7, 2016
First posted
Dec 13, 2016
StartActual
Aug 4, 2017
Primary completionEst.
Sep 29, 2027
CompletionEst.
Sep 29, 2027
Last update
Aug 26, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 26, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02991690
Collaborators
United States Department of Defense
Responsible party
Allan D. Levi (Professor and Chairman of Neurological Surgery, University of Miami) — Principal investigator
First posted
Dec 13, 2016
Start date
Aug 4, 2017
Primary completion
Sep 29, 2027 (estimated)
Completion
Sep 29, 2027 (estimated)
Last update
Aug 26, 2026

Study contacts

George Jimsheleishvili, MD
Contact
gxj150@miami.edu
305-243-4781
Allan D Levi, MD, PhD
principal investigator · University of Miami

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion