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Low Birth Weight NeonatesNCT01420029

Hospital-Based Phthalate Exposure in Very Low Birth Weight Neonates

An observational study of Low Birth Weight Neonates, run by Icahn School of Medicine at Mount Sinai 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

In this observational pilot project, the investigators plan to document duration and sources of exposure to plasticizers in infants born at birth weights less than 1500 grams. The investigators will examine the association between exposure to plasticizers and outcomes such as performance on a neurological screening… Read more about this study

Who is it for?
Any age
Conditions the study is for
Low Birth Weight Neonates
How many people
81 participants
Where
1 siteUnited States
Study dates
Aug 2011to Sep 2013
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Neonates born at birthweights less than 1500 grams will be included.

Who may be able to join

  • Neonates born less than 1500 grams that are admitted to the Mount Sinai Hospital NICU

Who cannot join

  • Chromosomal abnormality or other genetic disorder
  • Diagnosis of hypoxic-ischemic encephalopathy
  • Inborn error of metabolism
  • Congenital renal disease

Trial locations and contacts

1 site in 1 country.

United States1 site

  • Mount Sinai Hospital Neonatal Intensive Care Unit

    New York, New York, 10029

Other trials in United States

About this study

In this observational pilot project, the investigators plan to document duration and sources of exposure to plasticizers in infants born at birth weights less than 1500 grams. The investigators will examine the association between exposure to plasticizers and outcomes such as performance on a neurological screening tool, extrauterine growth, and thyroid function.

Read the detailed description

High levels of exposure to certain plasticizers, specifically, phthalates and Bisphenol-A (BPA) have been shown to affect intelligence and behavior in school-age children, as well as to disrupt growth and some endocrine functions. Items used in the care of infants in the Neonatal Intensive Care Unit (NICU) contain phthalates and BPA. Babies admitted for long periods of time to the NICU, could be exposed to high levels of these potentially harmful plastics. In this study, the investigators are interested in documenting duration and sources of exposure to plasticizers during the NICU admission of infants born weighing less than 1500 grams. The investigators will examine the association between NICU exposure to plasticizers and performance on a neurological screening test that predicts future behavior, growth after birth, and the presence of any thyroid dysfunction.

The investigators plan to enroll 50 neonates in our study. The investigators will catalog all exposure to plasticizers during the infant's NICU admission and assign each baby a risk level of exposure. The investigators will then test each infant's performance on a neurological screening tool, measure growth from birth and assess whether or not each infant has thyroid dysfunction and correlate each outcome with exposure risk level. The investigators will also collect urine samples from each baby to store for possible future analysis.

The investigators hypothesize that neonates with higher levels of exposure will demonstrate worse performance on the neurological screening tool, poor growth, and abnormal thyroid function.

Keywords
Low birth weight neonates, Neurodevelopmental outcome, Thyroid dysfunction, Extrauterine growth, Plasticizers

What is being measured

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

  1. Exposure to plasticizers

    Extent of exposure to plasticizers

    Measured: Length of stay in NICU which averages 8-10 weeks

  2. Performance on neonatal neurological screening tool

    Measured: 4 weeks of age

  3. Performance on neonatal neurological screening tool

    Measured: 34 weeks postconceptual age

Secondary outcomes (2)

  1. Extrauterine growth

    Weight, head circumference and length will be recorded weekly during the neonate's stay in the NICU

    Measured: Weekly during NICU stay with average stay of 8-10 weeks

  2. Thyroid dysfunction

    Presence of thyroid dysfunction on thyroid function tests

    Measured: 4 weeks of age

Timeline

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

  1. First posted19 Aug 2011 (estimated)
  2. Study startAug 2011
  3. Primary completionSep 2013
  4. Study completionSep 2013

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
81 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01420029
Sponsor's protocol ID
GCO 11-0664
Other IDs
0285-7451
Status last verified
Sep 2013
First submitted
17 Aug 2011
Last updated
20 Sep 2013
Results posted
No
Data monitoring committee
No

Publications

  • Cho SC, Bhang SY, Hong YC, Shin MS, Kim BN, Kim JW, Yoo HJ, Cho IH, Kim HW. Relationship between environmental phthalate exposure and the intelligence of school-age children. Environ Health Perspect. 2010 Jul;118(7):1027-32. doi: 10.1289/ehp.0901376. Epub 2010 Mar 1.

    PubMed 20194078

  • Wolff MS, Engel SM, Berkowitz GS, Ye X, Silva MJ, Zhu C, Wetmur J, Calafat AM. Prenatal phenol and phthalate exposures and birth outcomes. Environ Health Perspect. 2008 Aug;116(8):1092-7. doi: 10.1289/ehp.11007.

    PubMed 18709157

  • Engel SM, Miodovnik A, Canfield RL, Zhu C, Silva MJ, Calafat AM, Wolff MS. Prenatal phthalate exposure is associated with childhood behavior and executive functioning. Environ Health Perspect. 2010 Apr;118(4):565-71. doi: 10.1289/ehp.0901470. Epub 2010 Jan 8.

    PubMed 20106747

  • Calafat AM, Needham LL, Silva MJ, Lambert G. Exposure to di-(2-ethylhexyl) phthalate among premature neonates in a neonatal intensive care unit. Pediatrics. 2004 May;113(5):e429-34. doi: 10.1542/peds.113.5.e429.

    PubMed 15121985

  • Calafat AM, Weuve J, Ye X, Jia LT, Hu H, Ringer S, Huttner K, Hauser R. Exposure to bisphenol A and other phenols in neonatal intensive care unit premature infants. Environ Health Perspect. 2009 Apr;117(4):639-44. doi: 10.1289/ehp.0800265. Epub 2008 Dec 10.

    PubMed 19440505

  • Weuve J, Sanchez BN, Calafat AM, Schettler T, Green RA, Hu H, Hauser R. Exposure to phthalates in neonatal intensive care unit infants: urinary concentrations of monoesters and oxidative metabolites. Environ Health Perspect. 2006 Sep;114(9):1424-31. doi: 10.1289/ehp.8926.

    PubMed 16966100

  • Loff S, Kabs F, Witt K, Sartoris J, Mandl B, Niessen KH, Waag KL. Polyvinylchloride infusion lines expose infants to large amounts of toxic plasticizers. J Pediatr Surg. 2000 Dec;35(12):1775-81. doi: 10.1053/jpsu.2000.19249.

    PubMed 11101735

  • Subotic U, Hannmann T, Kiss M, Brade J, Breitkopf K, Loff S. Extraction of the plasticizers diethylhexylphthalate and polyadipate from polyvinylchloride nasogastric tubes through gastric juice and feeding solution. J Pediatr Gastroenterol Nutr. 2007 Jan;44(1):71-6. doi: 10.1097/01.mpg.0000237939.50791.4b.

    PubMed 17204957

  • Kim BN, Cho SC, Kim Y, Shin MS, Yoo HJ, Kim JW, Yang YH, Kim HW, Bhang SY, Hong YC. Phthalates exposure and attention-deficit/hyperactivity disorder in school-age children. Biol Psychiatry. 2009 Nov 15;66(10):958-63. doi: 10.1016/j.biopsych.2009.07.034. Epub 2009 Sep 12.

    PubMed 19748073

  • Johnson S, Hollis C, Kochhar P, Hennessy E, Wolke D, Marlow N. Psychiatric disorders in extremely preterm children: longitudinal finding at age 11 years in the EPICure study. J Am Acad Child Adolesc Psychiatry. 2010 May;49(5):453-63.e1.

    PubMed 20431465

  • Tanaka T. Reproductive and neurobehavioural effects of bis(2-ethylhexyl) phthalate (DEHP) in a cross-mating toxicity study of mice. Food Chem Toxicol. 2005 Apr;43(4):581-9. doi: 10.1016/j.fct.2005.01.001.

    PubMed 15721206

  • Price SC, Chescoe D, Grasso P, Wright M, Hinton RH. Alterations in the thyroids of rats treated for long periods with di-(2-ethylhexyl) phthalate or with hypolipidaemic agents. Toxicol Lett. 1988 Jan;40(1):37-46. doi: 10.1016/0378-4274(88)90181-6.

    PubMed 3341048

  • Sugiyama S, Shimada N, Miyoshi H, Yamauchi K. Detection of thyroid system-disrupting chemicals using in vitro and in vivo screening assays in Xenopus laevis. Toxicol Sci. 2005 Dec;88(2):367-74. doi: 10.1093/toxsci/kfi330. Epub 2005 Sep 22.

    PubMed 16179385

  • Silva MJ, Reidy JA, Herbert AR, Preau JL Jr, Needham LL, Calafat AM. Detection of phthalate metabolites in human amniotic fluid. Bull Environ Contam Toxicol. 2004 Jun;72(6):1226-31. doi: 10.1007/s00128-004-0374-4. No abstract available.

    PubMed 15362453

  • Brazelton T, Nugent J. Neonatal Behavioral Assessment Scale, 3rd edition. 1995. Cambridge: MacKeith Press.

Questions about this trial

What is this clinical trial studying?

An observational study of Low Birth Weight Neonates, run by Icahn School of Medicine at Mount Sinai 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 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 20 Sep 2013. 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?

Exposure to plasticizers (time frame: Length of stay in NICU which averages 8-10 weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01420029, which also lists 26 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 20 Sep 2013; AzTrials last refreshed its copy on 7 Nov 2026.

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