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Infant DevelopmentNCT01373177

Differences Between the Bayley-II and the Bayley-III in Very Preterm Infants at 2 Years

A study testing Bayley Scales of Infant Development-II and Bayley Scales of Infant Development-III in people with Infant Development, run by Children's Hospital of Philadelphia 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 objective of this randomized study is to test the hypothesis that scores on the Bayley Scales of Infant Development-III (Bayley-III) are higher than scores on the Bayley Scales of Infant Development-II (BSID-II) in the same group of infants who were born very preterm. Read more about this study

Who is it for?
Ages 18 to 22 monthsHealthy volunteers can take part
Conditions the study is for
Infant Development
What is being tested?
Bayley Scales of Infant Development-II and Bayley Scales of Infant Development-III
Could I receive a placebo?
No, everyone receives an active treatment
How many people
119 participants
Where
1 siteUnited States
Study dates
Jan 2011to Feb 2015
Phase
Interventional
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 18 to 22 months
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Birth weight <2000 grams and <32 weeks
  • Corrected age of 18-22 months.

Who cannot join

  • English is not the primary language in the child's home.
  • Parent is unable to give informed consent for research participation.
  • Parent is unable to commit to returning for follow-up testing in 4-8 weeks.
  • Infant has severe medical illness or disability expected to impact his/her ability to participate in testing (ex: blindness, deafness, severe cerebral palsy, autism, tracheostomy).
  • No exclusion for economic status, gender, race or ethnicity.
  • Participation in a RCT that restricts timing and administration of developmental testing.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The Children's Hospital of Philadelphia

    Philadelphia, Pennsylvania, 19104

Other trials in United States

About this study

Official title: A Randomized Crossover Study to Evaluate Differences Between the Bayley-II and the Bayley-III in Very Preterm Infants at 2 Years

The objective of this randomized study is to test the hypothesis that scores on the Bayley Scales of Infant Development-III (Bayley-III) are higher than scores on the Bayley Scales of Infant Development-II (BSID-II) in the same group of infants who were born very preterm.

Read the detailed description

The objective of this randomized crossover study is to test the hypothesis that scores on the Bayley Scales of Infant Development-III are higher than scores on the Bayley Scales of Infant Development-II in the same group of infants who were born very preterm. First, however, the investigators must demonstrate that significant "learning" does not occur when the tests are administered 4-8 weeks apart. The investigators hypothesize that scores on the Bayley-III will be higher than scores on the BSID-II, irrespective of the order in which the tests are administered.

Being tested
Bayley Scales of Infant Development-II, Bayley Scales of Infant Development-III

What participants receive

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

  • Bayley Scales of Infant Development-IIDiagnostic test

    Also called BSID-II

    Individually administered test, designed to evaluate the developmental functioning of infants and small children, between 1 and 42 months of age. The purpose of the test is to identify infants and children with developmental delay. BSID-II was published in 1993. BSID-II provides normative data from two scales - Mental Development Index (MDI), and Psychomotor Development Index (PDI).

  • Bayley Scales of Infant Development-IIIDiagnostic test

    Also called Bayley-III, BSID-III

    Individually administered test, designed to evaluate the developmental functioning of infants and small children, between 1 and 42 months of age. The purpose of the test is to identify infants and children with developmental delay. BSID-III was released in 2006. BSID-III provides normative data from five scales - Cognitive, Language, Motor, Social-Emotional, and Adaptive.

Study groups in NCT01373177
Study groupRoleWhat they receive
BSID-II, then Bayley-IIIActive comparatorReceive BSID-II testing 4-8 weeks before Bayley-III testing
Receives: Diagnostic Test: Bayley Scales of Infant Development-II; Diagnostic Test: Bayley Scales of Infant Development-III
Bayley-III, then BSID-IIActive comparatorReceive Bayley-III testing 4-8 weeks before BSID-II testing
Receives: Diagnostic Test: Bayley Scales of Infant Development-II; Diagnostic Test: Bayley Scales of Infant Development-III

What is being measured

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

  1. The primary outcome is the mean difference between BSID-II Mental Development Index (MDI) and Bayley-III Cognitive Score.

    Measured: 18-22 months

Secondary outcomes (3)
  1. Mean difference between BSID-II Physical Development Index and Bayley-III Composite Motor Score.

    Measured: 18-22 months

  2. Proportion of infants classified as having "developmental delay" (MDI <70 on BSID-II or either Language or Cognitive Score <70 on the Bayley-III).

    Measured: 18-22 months

  3. The mean difference in scores between time point one and time point two (a measure of learning or training).

    Measured: 18-22 months

Timeline

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

  1. First posted14 Jun 2011 (estimated)
  2. Study startJan 2011
  3. Primary completionFeb 2015
  4. Study completionFeb 2015

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
119 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01373177
Sponsor's protocol ID
10-007937
Status last verified
Nov 2019
First submitted
13 Jun 2011
Last updated
21 Nov 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Bayley Scales of Infant Development-II and Bayley Scales of Infant Development-III in people with Infant Development, run by Children's Hospital of Philadelphia 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 2 inclusion and 6 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 21 Nov 2019. 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?

The primary outcome is the mean difference between BSID-II Mental Development Index (MDI) and Bayley-III Cognitive Score. (time frame: 18-22 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 21 Nov 2019.

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