Clinical trial Recruiting at 27 sites Interventional Ages 18 to 75

Comparing hypothermia and normal temperature after cardiac arrest treatment

Official title: Hypothermia Versus Normothermia After Extracorporeal Cardiopulmonary Resuscitation for Out-of-hospital Cardiac Arrest: A Cluster Randomized Trial (SAVE-J NEUROTHERM Trial)

Run by Kagawa University · NCT06776549 · Data updated 2026-11-12

This study is testing whether cooling the body or keeping it at normal temperature after cardiac arrest helps patients recover better and live longer.

Quick facts

Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment468 (estimated)
SponsorKagawa University
Academic / other
Locations29 sites (Kurume, Fukuoka and 28 other locations)
StatusRecruiting
StartedJanuary 6, 2025
Main results expectedJanuary 31, 2029
Study endsJanuary 31, 2030
Registry record updatedAugust 7, 2026
Trial IDNCT06776549 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18-75 who have experienced out-of-hospital cardiac arrest with specific initial cardiac rhythms.

Probably not a fit

Patients who have a non-cardiac cause for their cardiac arrest or those who have sustained return of spontaneous circulation before ECMO initiation may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This trial evaluates the effects of hypothermia versus normothermia on mortality and neurological outcomes in patients who have undergone extracorporeal cardiopulmonary resuscitation (ECPR) following out-of-hospital cardiac arrest. It aims to determine the optimal temperature control strategy for neuroprotection in these patients, as previous studies have shown mixed results regarding the efficacy of therapeutic hypothermia. The study involves a cluster randomized design and focuses on patients aged 18-75 with specific cardiac arrest rhythms. The research is conducted at multiple hospitals in Japan, utilizing ECMO technology to facilitate rapid temperature control.

Why it matters

Potential benefit: If successful, this study could improve survival rates and neurological outcomes for patients who experience out-of-hospital cardiac arrest.

How similar studies have gone: While previous studies on therapeutic hypothermia have shown mixed results, this specific approach using ECPR and temperature control is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* OHCA
* Age of 18-75 years, known or estimated
* An initial cardiac arrest rhythm of ventricular fibrillation/pulseless ventricular tachycardia or pulseless electrical activity

Exclusion Criteria:

* ECMO initiated after sustained return of spontaneous circulation (ROSC) and patients with sustained ROSC before ECMO initiation
* OHCA of presumed non-cardiac etiology
* Time from emergency call or witnessed arrest to hospital arrival of \>60 min
* Time from hospital arrival to ECMO initiation of \>60 min
* Pre-hospital ECPR
* Unavailability of the ECMO heat exchanger for temperature control
* Glasgow Coma Scale score before temperature control of \>8
* Core body temperature upon hospital arrival of ≤32ºC
* Surgical intervention before temperature control (e.g., surgical intervention for the primary disease or complications related to resuscitation/ECMO procedures)
* Do Not Attempt Resuscitation) order confirmed prior to temperature control
* Limitations in intensive care before temperature control
* Known cerebral performance category (CPC) of 3-4 before cardiac arrest
* Known chronic obstructive pulmonary disease with home oxygen therapy
* Known or suspected pregnancy
* Concomitant illness, such as malignancy, shortens life expectancy (180-day survival unlikely)
* Consent not obtained or withdrawn by the participant or surrogate
* Other reasons, physician's decision not to enroll the patient

Where it's running

  • Kurume University Hospital
    Kurume, Fukuoka, Japan
    Recruiting
  • Sapporo Medical University Hospital
    Sapporo, Hokkaido, Japan
    Recruiting
  • Hokkaido University Hospital
    Sapporo, Hokkaido, Japan
    Recruiting
  • Hyogo Prefectural Kakogawa Medical Center
    Kakogawa, Hyōgo, Japan
    Recruiting
  • Hyogo Emergency Medical Center
    Kobe, Hyōgo, Japan
    Recruiting
  • Toyooka Public Hospital
    Toyooka, Hyōgo, Japan
    Recruiting
Show 23 more locations
  • Hitachi General Hospital
    Hitachi-shi, Ibaraki, Japan
    Recruiting
  • Kagawa University Hospital
    Kita-gun, Kagawa-ken, Japan
    Recruiting
  • Oshima Prefectural Hospital
    Amami, Kagoshima-ken, Japan
    Recruiting
  • Ebina General Hospital
    Ebina, Kanagawa, Japan
    Recruiting
  • Saiseikai Yokohamashi Tobu Hospital
    Yokohama, Kanagawa, Japan
    Recruiting
  • Tohoku University Hospital
    Sendai, Miyagi, Japan
    Recruiting
  • Sendai Medical Center
    Sendai, Miyagi, Japan
    Recruiting
  • Okayama University Hospital
    Okayama, Okayama-ken, Japan
    Recruiting
  • Tsuyama Chuo Hospital
    Tsuyama, Okayama-ken, Japan
    Recruiting
  • Okinawa Prefectural Nanbu Medical Center & Children's Medical Center
    Shimajiri-gun, Okinawa, Japan
    Recruiting
  • Osaka Saiseikai Senri Hospital
    Suita, Osaka, Japan
    Recruiting
  • Saitama Red Cross Hospital
    Saitama, Saitama, Japan
    Recruiting
  • Tottori Prefectural Central Hospital
    Tottori-shi, Tottori, Japan
    Recruiting
  • St. Luke's International Hospital
    Tokyo, Japan
    Recruiting
  • Institute of Science Tokyo Hospital
    Tokyo, Japan
    Recruiting
  • Nippon Medical School Hospital
    Tokyo, Japan
    Recruiting
  • Tokyo Metropolitan Bokutoh Hospital
    Tokyo, Japan
    Recruiting
  • Keio University Hospital
    Tokyo, Japan
    Recruiting
  • Japanese Red Cross Musashino Hospital
    Tokyo, Japan
    Recruiting
  • Tokyo Metropolitan Tama Medical Center
    Tokyo, Japan
    Recruiting
  • National Hospital Organization Disaster Medical Center
    Tokyo, Japan
    Recruiting
  • Asahikawa Medical University Hospital
    Asahikawa, Hokkaido, Japan
    Not yet recruiting
  • Kyoto Second Red Cross Hospital
    Kyoto, Kyoto, Japan
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.