Postnatal HCMV Infection in Very Preterm Infants. Implications, Morbidity, Growth and Neurodevelopmental Outcomes.

September 21, 2022 updated by: Kenneth Strømmen, Oslo University Hospital

Postnatal HCMV Infection in Very Preterm Infants. Implications on Acute and Chronic Morbidity, Growth and Neurodevelopmental Outcomes Part of the Study on "Nutrition, Growth and Development Among Very Preterm Infants".

The aim of this study is to investigate short and long term consequences from early postnatal HCMV infection transmitted via human milk in very preterm infants (birth weight < 1500 g or gestational age < 32 weeks). These infants are at high risk of early death or survival with chronic disease and neurodevelopmental impairment if infected with HCMV. Infection is a common complication in this group of patients and reported to be the most frequent cause of death after the second week of life. Systemic infection in the newborn period is reported as representing an independent risk factor for survival with neurodevelopmental impairment among very preterm infants.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Withdrawn

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

Approximately 70 % of fertile women in Norway are seropositive for HCMV. In practically all seropositive women a reactivation of the HCMV occurs during late pregnancy and lactation. In 75 - 80 % of HCMV seropositive lactating women this reactivation can be detected as presence of infectious HCMV in breast milk and witch is pathogenic and fully capable of causing infection in both term and preterm infants. Norway is one of few countries in the world where the provision of raw unpasteurized milk from the mothers to their very premature infants is encouraged regardless of the mothers HCMV status. Within the first few days after inclusion the mothers HCMV status will be established by serological tests. Weekly samples will be collected from the mother's breast milk and the baby's urine and frozen at minus 80 degrees Celsius for later quantitative analysis for the presence of HCMV virus by PCR technique. The plan is to enrol 260 very preterm infants over a period of 2 years. Exclusion criteria are congenital malformations, chromosomal abnormalities and clinical syndromes known to affect growth, and critical illness with short life expectancy. We wish to preform Magnetic Resonance Imaging (MRI) of the brain at term and 5 months corrected age. A parent-completed Questionnaire called the Ages and Stages Questionnaire (ASQ), will be sent to the infants' parents at 6, 12 and 20 months CA. We will perform a Visual Evoked Potential (VEP) test and an eye-tracking test at 5 months CA. During the 3rd year of life we will test children's ability to insert differently formed object into fitting apertures. The aim of this study is to investigate short and long term consequences from early postnatal HCMV infection transmitted via human milk in very preterm infants (birth weight < 1500 g or gestational age < 32 weeks). These infants are at high risk of early death or survival with chronic disease and neuro-developmental impairment if infected with HCMV. HCMV infection is a common complication in this group of patients and reported to be the most frequent cause of death after the second week of life. This study on postnatal HCMV infection will, together with the main study on nutrition (Nutrition, growth and development among very preterm infants, NCT01103219), provide results that will create a foundation for evidence based recommendations regarding optimal nutrition of very preterm infants. Much uncertainty is attached to the consequences from providing raw human milk from HCMV seropositive mothers to their very preterm infants. Raw HCMV positive human milk given to very preterm infants may lead to unwanted consequences on health on a scale that is largely unknown and may be underrated.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Norway
      • Oslo, Norway, 0424
        • Oslo University Hospital, Rikshospitalet

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

1 week and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Premature infants with birth weight below 1,500 grams born at Oslo University Hospital and Akershus University Hospital.

Description

Inclusion Criteria:

  • Birth weight below 1,500 grams
  • Written parental consent
  • Infants receiving their own mothers milk

Exclusion Criteria:

  • Congenital malformations
  • Critical illness with short life expectancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Positive HCMV PCR in urine > 2 weeks after birth is diagnostic for postnatal HCMV infection.
Time Frame: > 2 weeks after birth
> 2 weeks after birth

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Incidence and consequences of postnatal HCMV infection in terms of neurodevelopment disabilities including cognition, vision, hearing, movement and growth.
Time Frame: Before 5 months of age.
Before 5 months of age.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Oslo University Hospital

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
University of Oslo
Ullevaal University Hospital
University Hospital, Akershus

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Arild Rønnestad, Dr.med (PhD), Oslo University Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2013

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 25, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 25, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 28, 2010

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 23, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 21, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • REK 2009/2249b

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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