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Melatonin ProductionNCT00775723

Melatonin Production Delay in Preterm Infants

An observational study of Melatonin Production, run by Tel Aviv University at 1 site in Israel.

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

Objective: Melatonin production is known to be delayed in preterm-born infants up to 6 months of age. This might be related to exposure of preterm infants to continuous lighting in the NICU during a critical period of pineal gland development. Read more about this study

Who is it for?
Ages 9 to 12 months
Conditions the study is for
Melatonin Production
How many people
46 participants
Where
1 siteIsrael
Study dates
Jan 2008to May 2008
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 9 to 12 months
  • All sexes
  • No healthy volunteers
  • Child

Study population: Design: Forty-six infants (23 full term and 23 preterm babies) infants and their mothers were randomly recruited from a successive list of preterm and term labors at a large urban medical center in Northern Israel and were assigned to the study. We calculated that a sample size of 30 mother-infant dyads is sufficient to show a significant effect of the intervention with a power of 90% and 5% risk of type alpha error (Cohen , chen, West \& Aiken, 2003). This calculation was based on the effect size found in full-term infants melatonin secetion (1).

Who may be able to join

  • The investigators included healthy mothers with singleton pregnancies and documented prenatal care who were admitted before term (28-34) weeks gestation to the hospital's delivery room with early uterine contractions and entering stage 1 of an anticipated spontaneous vaginal delivery or term infants born at 38-42 weeks of gestation.

Who cannot join

  • Mothers who showed signs of fetal distress during labor, or required Cesarean (C)c-section, or had fetuses withand estimated fetal weights < 10th percentile for gestational age and children diagnosed with
  • Genetic anomalies, congenital heart malformations, gastrointestinal disturbances and central nervous system dysfunction
  • Age < 9 months, Age > 9 months month at onset of study
  • Considered medically unstable

Trial locations and contacts

1 site in 1 country.

Israel1 site
  • Rambam Medical Center

    Haifa

Other trials in Israel

About this study

Official title: Term-Born Infants at 9 and 12 Months of Age: A Randomized Controlled Trial

Objective: Melatonin production is known to be delayed in preterm-born infants up to 6 months of age. This might be related to exposure of preterm infants to continuous lighting in the NICU during a critical period of pineal gland development. The investigators aimed to test the profile of melatonin production in these infants at 9-12 months of age.

Methods: Twenty three term-born and 23 preterm-born infants (gestational age: 29-34 weeks) were studied. The investigators tested nocturnal urinary melatonin excretion, within a repeated measures design, both at 9 and 12 months of age. Nocturnal urine was extracted from diapers and urinary melatonin derivate (6-sulphatoxymelatonin) excretion was analyzed by ELISA assay.

Read the detailed description

Unlike other organs which show catch up in preterm infants after one year of life, the pineal gland shows persistent delay in melatonin production. This field of research has been neglected lately although there are published recommendations for decrease of bright light in NICUs which prevents melatonin development and production, and also recommendations for melatonin treatment in cases respiration recovery in hospitalized preterm infants.

Keywords
6sulphatoxymelatonin, preterm infants, melatonin is low in preterm infants at least until the age of 6 months

Timeline

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

  1. First posted20 Oct 2008 (estimated)
  2. Study startJan 2008
  3. Primary completionMay 2008
  4. Study completionMay 2008

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
46 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00775723
Sponsor's protocol ID
1673
Other IDs
0
Status last verified
Oct 2008
First submitted
17 Oct 2008
Last updated
3 Nov 2008
Results posted
No
Data monitoring committee
No

Publications

  • Ferber SG, Laudon M, Kuint J, Weller A, Zisapel N. Massage therapy by mothers enhances the adjustment of circadian rhythms to the nocturnal period in full-term infants. J Dev Behav Pediatr. 2002 Dec;23(6):410-5. doi: 10.1097/00004703-200212000-00003.

    PubMed 12476070
  • Ferber SG, Makhoul IR. Neurobehavioural assessment of skin-to-skin effects on reaction to pain in preterm infants: a randomized, controlled within-subject trial. Acta Paediatr. 2008 Feb;97(2):171-6. doi: 10.1111/j.1651-2227.2007.00607.x. Epub 2008 Jan 3.

    PubMed 18177441
  • Ferber SG, Makhoul IR. The effect of skin-to-skin contact (kangaroo care) shortly after birth on the neurobehavioral responses of the term newborn: a randomized, controlled trial. Pediatrics. 2004 Apr;113(4):858-65. doi: 10.1542/peds.113.4.858.

    PubMed 15060238

Questions about this trial

What is this clinical trial studying?

An observational study of Melatonin Production, run by Tel Aviv University at 1 site in Israel.

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 1 inclusion and 4 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 3 Nov 2008. 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 Israel. 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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00775723, which also lists 3 linked publications.

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 3 Nov 2008; AzTrials last refreshed its copy on 27 Oct 2026.

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