This trial is active, not recruiting.

Condition cardiac arrest
Treatments therapeutic hypothermia, therapeutic normothermia
Phase phase 3
Sponsor University of Michigan
Collaborator National Heart, Lung, and Blood Institute (NHLBI)
Start date September 2009
End date September 2015
Trial size 350 participants
Trial identifier NCT00878644, 619, U01HL094339


Cardiac arrest is a sudden, unexpected loss of heart function. Therapeutic hypothermia, in which the body's temperature is lowered and maintained several degrees below normal for a period of time, has been used to successfully treat adults who have experienced cardiac arrest. This study will evaluate the efficacy of therapeutic hypothermia at increasing survival rates and reducing the risk of brain injury in infants and children who experience a cardiac arrest while out of the hospital.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification safety/efficacy study
Intervention model parallel assignment
Masking single blind (outcomes assessor)
Primary purpose treatment
Participants will receive therapeutic hypothermia after experiencing cardiac arrest.
therapeutic hypothermia Therapeutic hypothermia
Participants who are assigned to receive hypothermia will be cooled to a target temperature of 33º C plus or minus 1º C (32 to 34º C). This temperature will be maintained for 48 hours (2 days) and then participants will be warmed to a target temperature of 36.75º C plus or minus 0.75º C (36 to 37.5º C). This temperature will be maintained until 120 hours (5 days) after the cardiac arrest.
(Active Comparator)
Participants will receive therapeutic normothermia after experiencing cardiac arrest.
therapeutic normothermia Therapeutic normothermia
Participants who are assigned to receive therapeutic normothermia will have their temperature maintained at 36.75º C plus or minus 0.75º C (36° to 37.5º C) for 120 hours (5 days) after the cardiac arrest.

Primary Outcomes

Survival with good neurobehavioral outcome
time frame: Measured at Month 12

Secondary Outcomes

time frame: Measured at Month 12
Change in neurobehavioral function from pre-cardiac arrest to 12 months post-cardiac arrest
time frame: Measured at Month 12
Neuropsychological scores (for participants that survive)
time frame: Measured at Month 12
Neurological abnormality scores (for participants that survive)
time frame: Measured at Month 12

Eligibility Criteria

Male or female participants up to 18 years old.

Inclusion Criteria: - Patient suffered cardiac arrest requiring chest compressions for at least 2 minutes (120 seconds) with ROSC/ROC; AND - Age greater than 48 hours (with a corrected gestational age of at least 38 weeks) and less than 18 years; AND - Patient requires continuous mechanical ventilation; AND - The cardiac arrest was unplanned (i.e., not part of cardiac surgical procedure) Exclusion Criteria: - The parent or legal guardian does not speak English or Spanish (the only two languages in which VABS II is standardized) - Randomization is impossible within six hours of ROSC; OR - Patient is on extracorporeal membrane oxygenation (ECMO) when arrest occurs; OR - Continuous infusion of epinephrine or norepinephrine at very high doses (≥2 ug/kg/minute) received immediately prior to randomization; OR Glasgow Coma Scale motor response of five (localizing pain or for infants less than two years, withdraws to touch) or six (obeys commands, or for infants, normal spontaneous movement) prior to randomization; OR - History of a prior cardiac arrest with chest compressions for at least two minutes during the current hospitalization but outside the 6 hour window for randomization; OR - Pre-existing terminal illness with life expectancy < 12 months; OR - Lack of commitment to aggressive intensive care therapies including do not resuscitate orders and other limitations to care; OR - Cardiac arrest was associated with severe brain, thoracic, or abdominal trauma; OR - Active and refractory severe bleeding prior to randomization; OR - Near drowning in ice water with patient core temperature ≤32 °C on presentation; OR - Patient is pregnant; OR - Patient participation in a concurrent interventional trial whose protocol, in the judgment of the THAPCA investigators, prevents effective application of one or both THAPCA therapeutic treatment arms, or otherwise significantly interferes with carrying out the THAPCA protocol; OR - Patient is newborn with acute birth asphyxia; OR _ Patient cared for in a neonatal intensive care unit (NICU) after arrest (ie, would not be admitted to PICU); OR - Patient has sickle cell anemia; OR - Patient known to have pre-existing cryoglobulinemia; OR - Central nervous system tumor with ongoing chemotherapy or radiation therapy; OR - Chronic hypothermia secondary to hypovolemic, pituitary, or related condition for which body temperature is consistently below 37 °C ; OR progressive degenerative encephalopathy; OR - Any condition in which direct skin surface cooling would be contraindicated, such as large burns, decubitus ulcers, cellulitis, or other conditions with disrupted skin integrity (NOTE: patients with open chest CPR should be included but placement of cooling mattresses will be modified as needed); OR - Previous enrollment in the THAPCA Trials.

Additional Information

Official title Therapeutic Hypothermia After Pediatric Cardiac Arrest (Out of Hospital)
Principal investigator Frank W Moler, MD, MS
Description Cardiac arrest occurs when the heart suddenly stops beating and blood flow to the body is halted. It can occur while people are in the hospital because of a medical condition, or while people are out of the hospital as a result of an accident or other causes. Cardiac arrest is a serious event that is associated with high rates of death and long-term disability. When a person experiences cardiac arrest, insufficient amount of blood flow and oxygen can result in brain injury. Therapeutic hypothermia is a therapy that involves a controlled lowering of the body temperature and then maintenance of this lower temperature for a period of time. The treatment may result in reduced brain injury. Therapeutic hypothermia has been successfully used in adults who experience cardiac arrest to improve survival rates and health outcomes, and it has also been studied in newborn infants who have suffered from perinatal asphyxia. The purpose of this study is to evaluate the efficacy of therapeutic hypothermia at improving survival rates and reducing brain injury in infants and children who experience cardiac arrest while out of the hospital. Study researchers will conduct this study in collaboration with the following two pediatric clinical research networks: the Pediatric Emergency Care Applied Research Network (PECARN), funded by the Emergency Medical Services for Children (EMSC) program, and the National Institute of Child Health and Human Development (NICHD) Collaborative Pediatric Critical Care Research Network (CPCCRN). The study will enroll infants and children who have suffered a cardiac arrest while out of the hospital. Randomization must occur within 6 hours of return of spontaneous circulation. Participants will be randomly assigned to receive either therapeutic hypothermia or therapeutic normothermia. Participants receiving therapeutic hypothermia will have their body temperature reduced to between 32 to 34° Celsius (C) and will remain at this temperature for 2 days. Their body temperature will then be slowly increased to the normal temperature of 36 to 37.5° C, which will be maintained until 5 days after the cardiac arrest. Participants receiving therapeutic normothermia will have their normal temperature maintained between 36 to 37.5° C for 5 days after the cardiac arrest. Special temperature control blankets will be placed to maintain body temperature in the assigned range. After 5 days, each participant's temperature will be managed by their medical care team. While participants are in the hospital, they will undergo frequent blood and urine collections, chest x-rays, and temperature measurements; parents of participants will complete questionnaires. When participants are ready to leave the hospital, study researchers will perform a physical and functional assessment. Twenty-eight days after the cardiac arrest, researchers will contact parents of participants to gather information on the participants' health and medical condition. At Months 3 and 12, a child development expert will contact parents to gather medical information. At Month 12, participants will attend a study visit for a neurologic examination and testing with a psychologist trained in rehabilitation.
Trial information was received from ClinicalTrials.gov and was last updated in December 2014.
Information provided to ClinicalTrials.gov by University of Michigan.