此页面是自动翻译的,不保证翻译的准确性。请参阅 英文版 对于源文本。

Optimizing PreTerm Infant Ampicillin Dosing (OPTI-Amp)

2026年8月3日 更新者:Duke University

An Open-label, Pharmacokinetic and Safety Trial Optimizing PreTerm Infant Ampicillin Dosing

The goal of this clinical trial is to learn if preterm infants who are prescribed antibiotics shortly after birth can safety receive a shorter course of antibiotics (24 to 36 hours instead of 48 hours). The main questions it aims to answer are:

  • Does short-course ampicillin provide high enough levels of ampicillin at 48 hours?
  • Is short-course ampicillin safe for preterm infants to receive?

Preterm infants who are being prescribed ampicillin by their doctor and enroll in the study will stop ampicillin after a shorter than typical course, and researchers will collect blood samples to measure their ampicillin levels and follow them clinically to see how they do after receiving short-course ampicillin.

Participants will:

  • stop ampicillin earlier than 48 hours (between 24 to 36 hours, depending on how premature they are and the dosing of ampicillin their doctor has prescribed)
  • have one or more blood samples collected, including one around 48 hours from when they started ampicillin
  • have their data collected until 30 days after they receive short-course ampicillin, or until hospital discharge, whichever is sooner

研究概览

详细说明

OPTI-Amp is a prospective, open-label, non-randomized pharmacokinetic and safety trial of short-course ampicillin administered to preterm neonates in the Neonatal Intensive Care Unit (NICU) at Duke.

The objectives of the study are to 1) evaluate whether short-course ampicillin provides therapeutic exposures for 48 hours from ampicillin initiation for preterm neonates undergoing evaluation of early onset sepsis (EOS) and 2) evaluate the safety of short-course ampicillin compared to standard empiric ampicillin. The prescribing of drugs to infants will not be part of this protocol.

Approximately 60 neonates ≤34 weeks gestational age and <7 days postnatal age at the time of screening, who are receiving empiric ampicillin prescribed per standard of care (SOC) by their treating provider will be enrolled in the study. Participants will be in the study up to 30 days or hospital discharge, whichever is sooner. Enrolled infants who receive short-course ampicillin will have a pharmacokinetic sample collected at 48 (+/-2) hours from the time that ampicillin was initiated. Additional opportunistic pharmacokinetic (PK) samples can be collected between enrollment and 72 hours from ampicillin initiation if the patient is receiving other SOC labs; however, these are not required. Demographic information, clinical data, and biospecimen information (including date and time of sample collection) will also be collected for enrolled participants.

All enrolled infants will be in the safety population. Those with at least one PK sample will be included in the PK population. In addition to the risks of blood drawing and loss of confidentiality, there may be a risk of under treatment of EOS if clinical cultures result positive after ampicillin discontinuation and therapeutic exposure is not maintained between 24 or 36 hours until 48 hours. Participants that fall under the latter situation will either not be enrolled in the study or will be withdrawn as determined by the study PI.

研究类型

介入性

注册 (估计的)

60

阶段

  • 阶段2
  • 阶段1

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

学习地点

    • North Carolina
      • Durham、North Carolina、美国、27705
        • 招聘中
        • Duke Health Neonatal Intensive Care Unit
        • 接触:
        • 接触:
        • 首席研究员:
          • Angelique E Boutzoukas, MD, MPH

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 孩子

接受健康志愿者

不

描述

Inclusion Criteria:

  • Documented informed consent from parent/guardian
  • Infants admitted to the Duke Neonatal Intensive Care Unit (NICU)
  • less than or equal to 34 completed weeks gestational age (GA) at birth and < 7 days of life at time of screening
  • Prescribed ampicillin by provider per standard of care for evaluation of early onset sepsis

Exclusion Criteria:

  • Infant on extracorporeal support (e.g., ECMO)
  • Positive blood culture or other confirmed infection
  • At time of consent, infants with GA <28 completed weeks who have received more than 24 hours of empiric ampicillin OR infants with GA 28 to 34 completed weeks who have received > 32 to 36 hours of ampicillin, depending on dosing regimen
  • Has major congenital abnormalities where survival to 30 days of life is not expected
  • Receives a course of ampicillin that is longer (i.e., more doses) than the short-course defined regimen for their GA
  • Any condition which would make the participant, in the opinion of the investigator, unsuitable for the study

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:不适用
  • 介入模型:单组作业
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
实验性的:Short-course Ampicillin
Infants enrolled in the trial receive short-course empiric ampicillin (24 to 36 hours, depending on gestational age and prescribed dosing regimen), rather than a standard (48 hour) empiric ampicillin course
preterm infants receive less than 48 hours of prescribed ampicillin (i.e., a "short-course" ampicillin regimen) to provide the desired 48 hours of therapeutic exposures

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Total plasma ampicillin concentration
大体时间:data will be collected up to 50 hours from the first dose of ampicillin
Total plasma ampicillin concentration at 48(+/-) 2 hours after ampicillin initiation, following a single gestational age defined short-course with no further ampicillin administration. Target attainment defined as total ampicillin concentration of ≥1 µg/mL. The short-course regimen is considered successful if target attainment is achieved in ≥90% of the overall study population.
data will be collected up to 50 hours from the first dose of ampicillin

次要结果测量

结果测量
大体时间
Serious, unexpected, suspected adverse reactions to ampicillin
大体时间:Data will be collected until 30 days from short-course ampicillin, or until hospital discharge
Data will be collected until 30 days from short-course ampicillin, or until hospital discharge
Adverse events related to study procedures
大体时间:Data will be collected until 30 days from short-course ampicillin, or until hospital discharge
Data will be collected until 30 days from short-course ampicillin, or until hospital discharge
All-cause mortality at 30 days
大体时间:Data will be collected until 30 days from short-course ampicillin, or until hospital discharge
Data will be collected until 30 days from short-course ampicillin, or until hospital discharge
Antibiotic re-initiation within 7 days of short-course ampicillin
大体时间:Data will be collected until 7 days from short-course ampicillin
Data will be collected until 7 days from short-course ampicillin
Culture-confirmed bacteremia within 7 days of short-course ampicillin
大体时间:Data will be collected until 7 days from short-course ampicillin
Data will be collected until 7 days from short-course ampicillin
Necrotizing enterocolitis within 30 days of short-course ampicillin
大体时间:Data will be collected until 30 days from short-course ampicillin, or until hospital discharge
Data will be collected until 30 days from short-course ampicillin, or until hospital discharge

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2026年7月28日

初级完成 (估计的)

2027年7月1日

研究完成 (估计的)

2027年12月31日

研究注册日期

首次提交

2026年5月21日

首先提交符合 QC 标准的

2026年5月21日

首次发布 (实际的)

2026年5月28日

研究记录更新

最后更新发布 (实际的)

2026年8月5日

上次提交的符合 QC 标准的更新

2026年8月3日

最后验证

2026年8月1日

更多信息

与本研究相关的术语

其他研究编号

  • Pro00119855
  • 1K23HD113839 (美国 NIH 拨款/合同)

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

是的

IPD 计划说明

All IPD collected for study purposes will be shared to the NICHD DASH data repository.

IPD 共享时间框架

The IPD and supporting information will be available once data analysis is complete and will be available per NICHD DASH repository timelines.

IPD 共享访问标准

Qualified researchers and scientists from academic, non-profit, and for-profit institutions can access data sent to NICHD DASH repository for secondary analysis. Access is controlled, requiring approval from the DASH Data Access Committee (DAC) after the investigator submits a research proposal, a data use agreement (DUA), and a study-specific Data Management and Sharing Plan.

IPD 共享支持信息类型

  • 研究方案
  • 国际碳纤维联合会

药物和器械信息、研究文件

研究美国 FDA 监管的药品

是的

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

订阅