CClinicalTrials.gg
Status unknownNCT02331199Updated Jan 23, 2017

Comparison Between Amniotic Fluid Lamellar Body Count and Fetal Pulmonary Artery Doppler Indices in Predicting Fetal Lung Maturity

A Phase 3 interventional study of Amniotic fluid lamellar body count and Fetal pulmonary artery Doppler in Preterm Labour, sponsored by Cairo University. Status unknown at 2 sites in Egypt. Open to female participants aged 20 Years to 40 Years. Per ClinicalTrials.gov, last updated 2017-01-23.

Sponsored by Cairo University · Phase 3, Interventional, and Diagnostic

The sponsor has not verified this record recently (last verified Jan 2017), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 3
Study type
Interventional
Enrollment
200
Allocation
Not applicable
Ages
20 Years to 40 Years
Sex
Female
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Study summary

The investigators will study 200 women with singleton pregnancies presented with prelabor preterm rupture of membranes or undergoing cesarean section (CS). Amniotic fluid lamellar body count (LBC) and fetal pulmonary artery Doppler will be done to all women. LBC and fetal pulmonary artery Doppler will be correlated with fetal outcome

Read the detailed description

Neonatal respiratory distress syndrome (RDS) remains a major cause of neonatal morbidity and mortality. A recent epidemiologic study in the United States estimates that there are 80,000 cases of neonatal RDS each year, resulting in 8500 deaths and hospital costs in excess of $4.4 billion.

A number of biochemical tests have been developed to predict the risk of RDS and assist obstetric care providers in delivery timing. Amniotic fluid lamellar body count (LBC) is an important biophysical test, based on measuring the concentration of pulmonary surfactant in amniotic fluid. It can be effectively used to assess fetal lung maturity. A noninvasive test for fetal lung maturity (FLM) would be useful to minimize the need for invasive testing and would be more acceptable to women. Fetal pulmonary artery Doppler waveform acceleration/ejection time may provide a noninvasive means of determining fetal lung maturity with relatively acceptable levels of sensitivity, specificity, and predictive values.

The investigators will study 200 women with singleton pregnancies presented with prelabor preterm rupture of membranes or undergoing cesarean section (CS). Amniotic fluid lamellar body count (LBC) and fetal pulmonary artery Doppler will be done to all women. LBC and fetal pulmonary artery Doppler will be correlated with fetal outcome.

Quantitative data will be statistically represented in terms of mean ± standard deviation (± SD) while categorical data will be represented as frequency and percentage. Comparison of quantitative data will be done using Mann Whitney U test for independent samples while categorical data will compared using Chi squared test or Fisher exact test when appropriate. A probability value (p value) less than 0.05 will be considered significant.

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Conditions studied

  • Preterm Labour
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In context

Obstetric Labor, Premature

255 studies on the registry are indexed under Obstetric Labor, Premature; 38 are open to participants now.

This study's planned enrollment of 200 is above the median of 110 across 155 interventional studies indexed under Obstetric Labor, Premature.

Browse Obstetric Labor, Premature studies →

Lead sponsor

Cairo University is the lead sponsor of 4,780 studies on the registry; 1,427 are open to participants now.

Of its 36 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
20 Years to 40 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • Singleton pregnancies without any major congenital anomalies.
  • Gestation between 32-36 weeks
  • Women presenting preterm pre-labour ruptured membranes or undergoing a cesarean section.

Exclusion criteria

Exclusion Criteria:

  • Patients with major fetal anomalies.
  • Bloody or meconium stained amniotic fluid
  • preexisting maternal medical conditions (eg, diabetes, renal disease, hypertensive disorders, vaginal bleeding
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Study design

Phase
Phase 3
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
200 participants (estimated)

Study arms

  • Experimental
    preterm labour

    200 women with preterm prelabour ruptured membranes or undergoing preterm CS

    Device: Amniotic fluid lamellar body count · Device: Fetal pulmonary artery Doppler

Interventions

  • DeviceAmniotic fluid lamellar body count

    The LBC (the unit of measurement is number of lamellar bodies counted per microliter of amniotic fluid) will be determined using the platelet channels on the Hematology Flow Cytometer.

    Also known as: Amniotic fluid lamellar body count will be measured

  • DeviceFetal pulmonary artery Doppler

    A fetal pulmonary artery Doppler will be performed using color Doppler ultrasound. Doppler flow velocity measurements, including systolic/diastolic ratio, pulsatility index, resistance index, and acceleration-time/ejection-time ratio using spectral Doppler ultrasound.

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What researchers measure

Primary outcomes

  1. Respiratory distress syndrome (RDS)

    RDS will be diagnosed clinically by the presence of tachypnea, working respiratory muscles, expiratory grunt, and chest x-ray.

    Time frame: 1 day after delivery

Secondary outcomes

  1. Need for incubation

    It will be recorded if the pediatrician decides to incubate the neonate. The reason for incubation e.g. ventilation, hypoxia, ischemia will be recorded.

    Time frame: 1 day after delivery

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Study locations

2 of 2 sites recruiting
  • Al Galaa maternity fospital
    Cairo, Egypt
    • Mohamed Wafeek · Contact · 002 01223524286
    • Mohamed Wafeek · Principal investigator
    Recruiting
  • Cairo university hospitals
    Cairo, Egypt
    • AbdelGany Hassan, MRCOG, MD · Contact · abdelgany2@gmail.com · 002 01017801604
    • AbdelGany MA Hassan, MRCOG, MD · Sub investigator
    • Sherif Negm, MD · Principal investigator
    • Doaa Salah, MD · Sub investigator
    Recruiting
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References and documents

Publications

  • AVERY ME, MEAD J. Surface properties in relation to atelectasis and hyaline membrane disease. AMA J Dis Child. 1959 May;97(5, Part 1):517-23. doi: 10.1001/archpedi.1959.02070010519001. No abstract available. PubMed 13649082 ↗
  • Dubin SB. Characterization of amniotic fluid lamellar bodies by resistive-pulse counting: relationship to measures of fetal lung maturity. Clin Chem. 1989 Apr;35(4):612-6. PubMed 2702746 ↗
  • Neerhof MG, Dohnal JC, Ashwood ER, Lee IS, Anceschi MM. Lamellar body counts: a consensus on protocol. Obstet Gynecol. 2001 Feb;97(2):318-20. doi: 10.1016/s0029-7844(00)01134-0. PubMed 11165603 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 23, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02331199
Lead sponsor
Cairo University
Responsible party
AbdelGany Hassan (Lecturer of Gynecology and Obstetrics, Cairo University) — Principal investigator
First posted
Jan 6, 2015
Start date
Dec 2014
Primary completion
Dec 2017 (estimated)
Last update
Jan 23, 2017

Study contacts

AbdelGany MA Hassan, MRCOG, MD
Contact
abdelgany2@gmail.com
+201017801604

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jan 2017. You cannot join it, but the record below documents what was studied.

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