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Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
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Involving Individuals with Developmental Language Disorder and Their Parents/Carers in Research Priority Setting
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Follow-up data their use in evidence-based decision-making.

T Michael O'Shea1, Donald J Goldstein

  • 1Department of Pediatrics, Wake Forest University Health Sciences, Medical Center Boulevard, Winston-Salem, NC 27157, USA. moshea@wfubmc.edu

Clinics in Perinatology
|July 24, 2003
PubMed
Summary

Long-term follow-up is crucial for assessing the safety and effectiveness of perinatal interventions. Comprehensive data collection, including neurodevelopmental outcomes, informs long-term quality of life and potential risks.

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Area of Science:

  • Neonatal Medicine
  • Developmental Pediatrics
  • Clinical Trial Design

Background:

  • Perinatal interventions like supplemental oxygen, dexamethasone, and indomethacin require extensive follow-up data for safety and efficacy evaluation.
  • Current clinical trials often lack comprehensive long-term follow-up, leading to incomplete understanding of intervention effects on health-related quality of life (HRQL).

Purpose of the Study:

  • To highlight the necessity of robust follow-up data in perinatal intervention trials.
  • To discuss ideal versus practical follow-up strategies for assessing long-term outcomes.

Main Methods:

  • Review of existing clinical trial methodologies for perinatal interventions.
  • Analysis of the balance between comprehensive longitudinal follow-up and cost-effectiveness.
  • Focus on neurodevelopmental outcomes at 18 months as a pragmatic approach.

Main Results:

  • Many trials do not extend follow-up beyond the neonatal period, limiting HRQL data.
  • 18-month neurodevelopmental assessments provide moderately informative data on major disabilities and eventual quality of life.
  • Follow-up after school entry may be necessary if interventions are suspected to affect brain development.

Conclusions:

  • Incomplete follow-up compromises the assessment of perinatal intervention safety and effectiveness.
  • A pragmatic approach focusing on early major disability identification offers valuable insights into long-term quality of life.
  • Extended follow-up is essential when interventions may have subtle or delayed effects on neurodevelopment.