Evaluation of Amoxicillin Diffusion in Breast Milk According to a Population Pharmacokinetic Approach (CONCEPTION-AMOX) (CONCEPTION)

August 22, 2023 updated by: University Hospital, Toulouse

Evaluation of Amoxicillin Diffusion in Breast Milk According to a Population Pharmacokinetic Approach.

Based on plasma and milk concentrations, a PopPK model will be performed (i) to document the average and individual exposure to amoxicillin in milk, (ii) to identify the factors explaining the inter-individual pharmacokinetic variability and (iii) to determine the daily dose ingested by the infant and its variability for different dosage regimens applied to the mother. The secondary objectives are to monitor (i) predefined adverse reactions in infants and (ii) the impact on milk production.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study will complement the clinical data on amoxicillin in breastfed new-borns considering that current knowledge in terms of authorized drugs use during breastfeeding is not sufficient to guarantee the child absence of exposure, even minimal. As a consequence, this lack of certainties leads to premature discontinuation of breastfeeding, well known to be beneficial for the breastfed new-borns. Amoxicillin, prescribed alone or with clavulanic acid at 2 to 3g per day for 7 days, including in lactating women, is mainly used to treat β-hemolytic strep throat, infections of the genitourinary tract as well as ear, nose and throat infections.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
25

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • France
      • Paris, France
        • APHP Hôpital Necker, Lactarium Régional d'Ile de France
      • Toulouse, France
        • CHU Toulouse

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Mothers over 18 years, treated by amoxicillin for at least 2 days who breastfeed their child, - Participation requires that breastfeeding is already well established (i.e., at least 2 weeks after giving birth in order to sample mature milk) and that the infant is over 4 weeks old,
  • Affiliation to the social security scheme or equivalent,
  • Ability to understand and willingness to sign a written Informed Consent document.

Exclusion Criteria:

  • Mothers under 18 years old,
  • Infants born prematurely (i.e., gestational age under 34 weeks) or requiring appropriate medical supervision or support from a team of social workers,
  • Mothers who gave birth to twins,
  • Inability to communicate due to language problems for the mother,
  • Patient subject to a legal protection order (curatorship or tutorship).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Breastfeeding women
Mothers over 18, treated with amoxicillin alone or associated with clavulanic acid for at least 2 days, breastfeeding their child.
Biological: Blood and milk samples

2 types of samples will be taken over the same time slots in breastfeeding mothers treated with amoxicillin for at least 2 days:

  • 3 breast milk collections of about 20 ml each made using an electric breast pump provided to the participant.
  • 3 blood samples of approximately 5 ml each.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Concentration-time profile of amoxicillin in milk
Time Frame: At the time of samplings (day 0)
At the time of samplings (day 0)
Concentration-time profile of amoxicillin in plasma
Time Frame: At the time of samplings (day 0)
At the time of samplings (day 0)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Occurrence of predefined side effects in infants during the breastfeeding period.
Time Frame: At the time of samplings (day 0) and a week later (day 7)
Occurrence of diarrhoea, nausea, vomiting, feeding difficulties, skin rashes, urticaria and candidiasis will be monitored using a form on the infant's health status and breastmilk production will be completed by the mother/parent at the time of samplings and a week later.
At the time of samplings (day 0) and a week later (day 7)
Impact of mother's drug consumption on breast milk production.
Time Frame: At the time of samplings (day 0) and a week later (day 7)
A form on breastmilk production will be completed by the mother/parent at the time of samplings and a week later
At the time of samplings (day 0) and a week later (day 7)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University Hospital, Toulouse

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Peggy Gandia, MD, CHU Toulouse

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 23, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 12, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 12, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 2, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 9, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 21, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 23, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 22, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2023

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • RC31/21/0217

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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