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CompletedNCT01657578OMEPRAZOLE-1Updated Oct 11, 2012

Optimal Dosing of Omeprazole in Neonates

A Phase 2 interventional study of Omeprazole in Gastroesophageal Reflux Disease (GERD), sponsored by Assistance Publique - Hôpitaux de Paris. Completed at 1 site in France. Open to participants aged 35 Weeks and older. Per ClinicalTrials.gov, last updated 2012-10-11.

Sponsored by Assistance Publique - Hôpitaux de Paris · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
55
Allocation
Non-randomized
Ages
35 Weeks and older
Sex
All
01

Study summary

"The principal aim of this trial is to determine the minimum effective dose of omeprazole in neonates with GERD objectively diagnosed by a 24-h intra-oesophageal pH monitoring (pHmetry), to obtain a short-term efficacy in the pHmetry of control performed 72 hrs ± 24 after initiation of omeprazole.

The secondary objectives of the study were: (1) to assess the efficacy of omeprazole upon other pHmetry parameters, (2) to characterize the population pharmacokinetics and pharmacogenetics of omeprazole, (3) to evaluate the effect of omeprazole upon oro-pharyngeal pH monitoring and (4) to assess the short-term safety of use of omeprazole in neonates."

Read the detailed description

"Omeprazole is a proton pump inhibitor increasingly prescribed in the neonatal population for gastroesophageal reflux disease (GERD) complicated or not by the presence of esophagitis. Although extensively evaluated in adults, optimal dosing schemas, efficacy and safety have not been determined in the neonatal population where its prescription remains off-label. The study is a double blind trial that was designed using a Bayesian sequential analysis approach. The principle of this approach is to identify the adequate drug dosage to obtain a level of efficacy as close as possible to a predetermined target level of efficacy in the population. In this study, five different dosages of omeprazole are tested (1, 1,5, 2, 2,5, 3 mg/kg/day) and a target probability of successful treatment of 95% has been chosen. To assess the influence of gestational age on omeprazole's efficacy, analysis was stratified on 3 groups: (1) neonates of less than 32 weeks gestational age (GA), (2) neonates born between 32 and 35 weeks of GA, (3) neonates of more than 36 weeks of GA.

A total maximum number of 90 neonates is expected to be included (30 neonates per group).

Patients' participation in the study ends after completion of the pHmetry of control that is 72 ±24 hours after omeprazole initiation.

Patients in the study will all benefit for the management of their GERD from non-pharmacological therapies such as adequate positioning and use of available thickening agents for formula The only pharmacologic agent authorised during study for treating GERD is omeprazole. All other available GERD treatments will not be prescribed."

02

Conditions studied

  • Gastroesophageal Reflux Disease (GERD)

Keywords

  • neonates
  • reflux disease
  • population pharmacokinetics, omeprazole
03

In context

Gastroesophageal Reflux

1,067 studies on the registry are indexed under Gastroesophageal Reflux; 188 are open to participants now.

This study's enrollment of 55 is below the median of 72 across 712 interventional studies indexed under Gastroesophageal Reflux.

Browse Gastroesophageal Reflux studies →

Lead sponsor

Assistance Publique - Hôpitaux de Paris is the lead sponsor of 3,505 studies on the registry; 1,006 are open to participants now.

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

04

Who can participate

Ages eligible
35 Weeks and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Full-term neonates or preterm neonates with a postmenstrual age >/= 35 weeks
  • Presenting abnormal pHmetry (= percentage of the entire record that intra-oesophageal pH is \<4 is superior or equal to 5%)
  • Patient must receive discontinuous oral feedings
  • If proton pump inhibitors or other pharmacologic antireflux therapies had already commenced, these had to be withdrawn 7 days before baseline recordings
  • In-patient in Neonatal Intensive Care Unit or Neonatology Unit of the Robert Debré University Hospital
  • Both parents sign written informed consent form
  • Affiliated to social security

Exclusion criteria

EXCLUSION CRITERIA:

  • Patients under proton pump inhibitors (PPI) treatment or that have discontinued PPI treatment less than 7 days before inclusion
  • Patients with acute gastrointestinal disease (diarrhoea)
  • Patients than present leucopenia or thrombocytopenia (value half the normal value for age)
  • Patients that present aspartate and alanine aminotransferase values twice the upper limit of normal
  • Patients that present renal and hepatic failure
  • Newborns presenting galactosemia, glucose-galactose malabsorption, deficiency in lactase enzymes
  • Co-administration of atazanavir and ritonavir
  • Patients allergic to omeprazole or to any other ingredients in the medicine
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
55 participants (actual)

Study arms

  • Experimental
    neonates of less than 32 weeks gestational age

    omeprazole

    Drug: Omeprazole

  • Experimental
    neonates born between 32 and 35 weeks of GA

    omeprazole

    Drug: Omeprazole

  • Experimental
    neonates of more than 36 weeks of GA

    omeprazole

    Drug: Omeprazole

Interventions

  • DrugOmeprazole

    administration of Omeprazole

    Also known as: administration of Omeprazole

06

What researchers measure

Primary outcomes

  1. Presence of a normalised control pHmetry Presence of a normalised control pHmetry Presence of a normalised control pHmetry

    Normalised control pHmetry is defined by a reflux index (duration that the recorded intra-oesophageal pH is less than 4.0, expressed as a percentage of the total duration of pH monitoring) of less than 5%

    Time frame: 72±24 hours after initiation of omeprazole treatment

Secondary outcomes

  1. mean number of reflux episodes per hour

    mean number of reflux episodes per hour

    Time frame: 72±24 hours after initiation of omeprazole treatment

  2. duration of the longest reflux episode

    duration of the longest reflux episode

    Time frame: 72±24 hours after initiation of omeprazole treatment

  3. plasma concentrations of omeprazole and its metabolite, hydroxyl-omeprazole

    Plasma concentrations of omeprazole and its metabolite, hydroxyl-omeprazole, After the first administration of omeprazole, blood will be collected either between H0.5 and H4 or between H4 and H12 or both

    Time frame: H0.5 and H4 or between H4 and H12 after the first administration of omeprazole

  4. changes in salivary pH monitoring

    changes in salivary pH monitoring Without treatment period: just before and 3 hours after a meal Under treatment period: just before and just after the insertion of the pHmetry catheter

    Time frame: just before and 3 hours after a meal Under treatment period

  5. changes in biological parameters

    changes in biological parameters

    Time frame: 96±24 hours after initiation of omeprazole treatment

07

Study locations

1 site
  • Hospital Robert Debre
    Paris, 75019, France
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 11, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01657578
Lead sponsor
Assistance Publique - Hôpitaux de Paris
Responsible party
Sponsor
First posted
Aug 6, 2012
Start date
Jun 2007
Primary completion
Dec 2010
Completion
Feb 2012
Last update
Oct 11, 2012

Study contacts

Evelyne Jacqz-Aigrain, MD, PhD
principal investigator · Assistance Publique - Hôpitaux de Paris

Oversight

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

Not currently enrolling

This study is completed, as verified in Jul 2012. You cannot join it, but the record below documents what was studied.

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