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 type | Interventional |
|---|---|
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 468 (estimated) |
| Sponsor | Kagawa University Academic / other |
| Locations | 29 sites (Kurume, Fukuoka and 28 other locations) |
| Status | Recruiting |
| Started | January 6, 2025 |
| Main results expected | January 31, 2029 |
| Study ends | January 31, 2030 |
| Registry record updated | August 7, 2026 |
| Trial ID | NCT06776549 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
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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
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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
- Principal investigator: Akihiko Inoue — Hyogo Emergency Medical Center
- Study coordinator: Akihiko Inoue
- Email: j-neuro@googlegroups.com
- Phone: 81-87-981-2392
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.