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Hypoxic-Ischemic EncephalopathyNCT05787899

Hypothermia's Effect on Hepatitis B Vaccination

An observational study of Hypoxic-Ischemic Encephalopathy and Hepatitis B Vaccination, run by Medical University of South Carolina at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the research is to determine if the Hepatitis B vaccine after birth provides enough protection after cooling for Hypoxic Ischemic Encephalopathy (HIE). To do this, Hepatitis B titers (blood sample) would be taken before, during, and after administering of the Hepatitis B vaccine series to measure… Read more about this study

Who is it for?
Ages 0 to 72 hours
What is being tested?
Hypothermia Protocol
How many people
9 participants
Where
1 siteUnited States
Study dates
18 May 2023to 1 Oct 2024
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 0 to 72 hours
  • All sexes
  • No healthy volunteers
  • Child

Study population: Hypothermia protocol is only approved for HIE in newborn infants and thus only newborn infants will be subjects in this study. We enroll every neonate who meets entry criteria or is referred for HIE to our institutions regardless of race and gender.

Who may be able to join

  • > 34 weeks' gestation at birth as measured by best obstetrical estimates
  • > 1500 grams birth weight
  • Clinical signs of asphyxia or documented periods of hypoxic ischemia with no cyanotic cardiac malformations and no known congenital infections.
  • Documented period of hypoxic ischemia:
  • Venous Cord gas pH < 7.0 or initial newborn blood gas pH < 7.1
  • Base deficit > 13 on venous cord gas or initial newborn blood gas
Show all 11Show fewer
  • Apgar score < 5 at 10 minutes
  • Prolonged, sustained fetal bradycardia (HR <80) for > 15 minutes in utero by doppler or fetal heart rate monitoring
  • Need for continued resuscitation after 5 minutes (bag-valve mask ventilation with/or without chest compressions) due to the absence of respiratory effort
  • Documented postnatal oxygen saturation < 70% or PaO2 < 35 for > 20 minutes by 2 ABGs, not due to cyanotic heart disease, accompanied by hypotension (mean BP< 35), cardiac arrest with chest compressions, or hemorrhage (requiring 20cc/kg volume replacement)
  • Parental willingness for infant to receive Hepatitis B vaccine.

Who cannot join

  • Positive maternal Hepatitis B status during pregnancy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Medical University of South Carolina

    Charleston, South Carolina, 29425

Other trials in United States

About this study

Official title: Efficacy of the Hepatitis B Vaccination Post Hypothermia for Hypoxic Ischemic Encephalopathy

The purpose of the research is to determine if the Hepatitis B vaccine after birth provides enough protection after cooling for Hypoxic Ischemic Encephalopathy (HIE). To do this, Hepatitis B titers (blood sample) would be taken before, during, and after administering of the Hepatitis B vaccine series to measure efficacy of the vaccine.

Read the detailed description

Despite the current research on Hypoxic Ischemic Encephalopathy (HIE), and the known effects of hypothermia on acute immune response, the effect of the hypothermia protocol for HIE on the efficacy of the Hepatitis B vaccine is still unknown. We plan to measure anti-hepatitis B surface antibodies at intervals prior, during, and after the primary Hepatitis B vaccine schedule for individuals with HIE to see if there is any effect on efficacy due to the Hypothermia protocol.

Being tested
Hypothermia Protocol
Keywords
Hypoxic Ischemic Encephalopathy, Hepatitis B vaccination
Medical subject headings
Hypoxia-Ischemia, Brain, Hypothermia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Hypothermia ProtocolOther

    Subject's who will be treated with the hypothermia protocol for Hypoxic Ischemic Encephalopathy as standard of care.

Study groups in NCT05787899
Study groupRoleWhat they receive
Hypothermia ProtocolNot described
Receives: Other: Hypothermia Protocol

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Determine efficacy of the Hepatitis B vaccine in individuals who are treated with routine care of Hypothermia for Hypoxic Ischemic Encephalopathy

    Response to vaccine will be measured by the previously researched protective level of anti-hepatitis B surface antibodies of ≥ 10 mIU/ml. We hypothesize that hypothermia to 33-33.5oC for 72h in near-term and term infants with Hypoxic Ischemic Encephalopathy will decrease the infant's immune response to the primary Hepatitis B vaccine series.

    Measured: 18 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Mar 2023
  2. Study start18 May 2023
  3. Primary completion1 Oct 2024
  4. Study completion1 Oct 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
9 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05787899
Sponsor's protocol ID
Pro00126670
Status last verified
Oct 2024
First submitted
15 Mar 2023
Last updated
28 Oct 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Hypoxic-Ischemic Encephalopathy and Hepatitis B Vaccination, run by Medical University of South Carolina at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Determine efficacy of the Hepatitis B vaccine in individuals who are treated with routine care of Hypothermia for Hypoxic Ischemic Encephalopathy (time frame: 18 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Oct 2024.

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