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TerminatedNCT00549575Updated Oct 26, 2007

L-Arginine Treatment for Severe Vascular Fetal Intrauterine Growth Restriction: a Randomized Double Bind Controlled Trial (L Arginine in IUGR)

A Phase 3 interventional study of L ARG and Placebo in Intra Uterine Growth Retardation, sponsored by Nantes University Hospital. Terminated at 1 site in France. Open to female participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2007-10-26.

Sponsored by Nantes University Hospital · Phase 3, Interventional, and Prevention

Why this study was terminated
terminated
Phase
Phase 3
Study type
Interventional
Enrollment
44
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
Female
01

Study summary

Although there is a strong rationale to supplement gravid patients suffering intrauterine growth restriction (IUGR) or preeclampsia with Arginine or other nitric oxide donors, evidence in the literature has been inconclusive. The current study was designed to determine whether oral treatment with L-Arginine, a nitric oxide (NO) donor, would enhance birth weight and/or decrease neonatal morbidity in pregnancies with severe vascular intrauterine growth restriction (IUGR).

Read the detailed description

Patients and Methods: 44 patients with a singleton pregnancy who had been referred for IUGR detected by ultrasonic examination were included. Vascular IUGR was defined by fetal abdominal circumference less than or equal to the third percentile, associated with abnormal uterine Doppler. After double blind randomization, patients received either 14 g/day of L-arginine (90 mL syrup, Veyron France Laboratories), or a placebo. Doppler ultrasound examination of the uterine, umbilical and cerebral circulation, and of ductus venosus was performed prior to inclusion, after 7 days of treatment, and the day before delivery. Ultrasound examination was performed upon randomization, and weekly until birth. Venous blood and urine samples were collected before initiation and after 7 days of treatment, and both maternal and umbilical venous samples were obtained at delivery for nitrate and nitrite (NO2-/ NO3-) determination.

02

Conditions studied

  • Intra Uterine Growth Retardation

Keywords

  • Severe Intra uterine growth retardation below the third centile with abnormal uterine doppler
  • Severe growth retardation with pathologic uterine Doppler
  • L-Arginine
  • Nitric Oxide Donor
03

In context

Fetal Growth Retardation

264 studies on the registry are indexed under Fetal Growth Retardation; 66 are open to participants now.

This study's enrollment of 44 is below the median of 101 across 117 interventional studies indexed under Fetal Growth Retardation.

Browse Fetal Growth Retardation studies →

Lead sponsor

Nantes University Hospital is the lead sponsor of 825 studies on the registry; 195 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • Multicenter randomized trial.
  • Patients with a singleton pregnancy with IUGR defined by fetal abdominal circumference less than or equal to the third percentile for gestational age, and abnormal uterine Doppler. Uterine Doppler was considered pathologic if Pourcelot's resistance index (S-D/S) was equal to or higher than 0.7, and/or if an obvious notch was present. If the placenta was not median, the side of the pathologic Doppler had to be on the same side as the placenta

Exclusion criteria

Exclusion Criteria:

  • Acute fetal distress
  • Non vascular and non severe IUGR (normal uterine doppler scans and/or abdominal circumference > 3rd percentile)
  • Maternal immune disorder
  • IUGR from an infectious etiology
  • IUGR associated with fetal malformation, multifetal pregnancy, and preeclampsia upon inclusion
05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
44 participants (actual)

Study arms

  • Experimental
    A

    Patients received 14 g/day of L-arginine (90 mL syrup, Veyron France Laboratories). Doppler ultrasound examination of the uterine, umbilical and cerebral circulation, and of ductus venous was performed prior to inclusion, after 7 days of treatment, and the day before delivery. Ultrasound examination was performed upon randomization, and weekly until birth. Venous blood and urine samples were collected before initiation and after 7 days of treatment, and both maternal and umbilical venous samples were obtained at delivery for nitrate and nitrite (NO2-/ NO3-) determination.

    Drug: L ARG

  • Placebo comparator
    B

    After double blind randomization, patients received a placebo. Doppler ultrasound examination of the uterine, umbilical and cerebral circulation, and of ductus venous was performed prior to inclusion, after 7 days of treatment, and the day before delivery. Ultrasound examination was performed upon randomization, and weekly until birth. Venous blood and urine samples were collected before initiation and after 7 days of treatment, and both maternal and umbilical venous samples were obtained at delivery for nitrate and nitrite (NO2-/ NO3-) determination.

    Drug: Placebo

Interventions

  • DrugL ARG

    Patients received 14 g/day of L-arginine (90 mL syrup, Veyron France Laboratories).

  • DrugPlacebo

    After double blind randomization, patients received a placebo.

06

What researchers measure

Primary outcomes

  1. The principal outcome is birth weight at delivery and neonatal morbidity (Crib Score)

    Time frame: 6 weeks

Secondary outcomes

  1. Secondary outcomes are Maternal and fetal hemodynamic with blood pressure and dopplers upon inclusion, after 7 days of treatment and at delivery

    Time frame: 6 weeks

07

Study locations

1 site
  • Chu-Nantes
    Nantes, 44093, France
08

References and documents

Publications

  • Winer N, Branger B, Azria E, Tsatsaris V, Philippe HJ, Roze JC, Descamps P, Boog G, Cynober L, Darmaun D. L-Arginine treatment for severe vascular fetal intrauterine growth restriction: a randomized double-bind controlled trial. Clin Nutr. 2009 Jun;28(3):243-8. doi: 10.1016/j.clnu.2009.03.007. Epub 2009 Apr 8. PubMed 19359073 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 26, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00549575
Lead sponsor
Nantes University Hospital
First posted
Oct 26, 2007
Start date
Jul 2000
Completion
Jun 2006
Last update
Oct 26, 2007

Study contacts

Norbert Winer, Doctor
principal investigator · Nantes University Hospital
Dominique Darmaun, Professor
study chair · Nantes University Hospital
Philippe Gilard, Doctor
study chair · University Hospital, Angers
F Goffinet, Professor
study chair · Paris-Port-Royal
View the source record on ClinicalTrials.gov ↗

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