Effects of GLP-1 RAs on Human Lactation Outcomes
2026年7月17日 更新者：University of Colorado, Denver
There is increasing interest in using GLP-1 Receptor Agonist (GLP-1 RA) medications after pregnancy. This study is designed to determine if these medications affect breastmilk production or the nutritional makeup of breastmilk.
The main questions the study will address are:
- Does GLP-1 RA-induced weight loss increase or decrease breastmilk production?
- Does GLP-1 RA-induced weight loss affect the nutritional composition of milk, including milk fat content?
Researchers will assess milk production rates before and after mothers begin taking injected GLP-1 RA medications to decrease their body weight. Weight loss will be confirmed with 7-day body weight averages.
Participants will:
- Weigh themselves and report measurements daily.
- Participate in 2-3 morning study visits over approx. 2.5-4.5 months (approx. 3-3.5hrs each).
During each visit, participants will:
- Use a study provided breastpump to express milk 3 times hourly for measurement of hourly milk production.
- Provide 1-3 oz of milk for further study.
- Answer questions about breastfeeding patterns.
研究概览
研究类型
观察性的
注册 (估计的)
18
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
- 姓名：Jayne F Martin Carli, PhD
- 电话号码：303-724-3981
- 邮箱：jayne.martincarli@cuanschutz.edu
研究联系人备份
- 姓名：Jacinda M Nicklas, MD, MPH
- 电话号码：303-724-9028
- 邮箱：jacinda.nicklas@cuanschutz.edu
学习地点
-
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Colorado
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Aurora、Colorado、美国、80045
- 招聘中
- University of Colorado Anschutz School of Medicine
-
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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
- 成人
- 年长者
接受健康志愿者
是的
取样方法
非概率样本
研究人群
Breastfeeding mothers willing to attend study study visits in Aurora, CO.
描述
Inclusion Criteria:
- Breastfeeding mothers of single or multiple infants.
- Milk removal at least 4x daily
- Eligible for a GLP-1 RA administered subcutaneously (oral GLP-1 RAs contain absorption enhancers, which may drive accumulation in milk)
- Access to a breastpump, if needed for maintaining breastfeeding behaviors.
- Willingness to provide 1-3 oz of breastmilk per study visit.
- Willingness to track and report body weight daily.
- Willingness to maintain breastfeeding behaviors for the duration of the study.
Exclusion Criteria:
- Currently taking GLP-1 RA medication or other weight loss medication
- Induced lactation, due to unknowns regarding the durability of the mammary gland's milk production after exogenous stimulation.
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
队列和干预
团体/队列 |
干预/治疗 |
|---|---|
|
Breastfeeding mothers prescribed GLP-1 RA therapies
Breastfeeding mothers who have been prescribed, but have not started, an injected GLP-1RA (these patients have an indication for GLP-1 RA treatment (BMI ≥27 kg/m2 with at least one comorbidity (prediabetes, diabetes, metabolic syndrome, obstructive sleep apnea, hypertension, dyslipidemia, cardiovascular disease, heart failure, chronic kidney disease, metabolic dysfunction-associated steatohepatitis, atrial fibrillation, venous thromboembolic disease, osteoarthritis, polyendocrine metabolic ovarian syndrome), or BMI ≥30 kg/m2)) and who are committed to sustaining breastfeeding habits (frequency and volume of milk removal) for the duration of the study period.
|
Participants are prescribed this medication by their care provider(s) as part of their postnatal clinical care, including but not limited to semaglutide and tirzepatide.
The investigators do not provide, manage, or assign the medication.
|
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 |
|---|---|---|
|
Hourly milk production rate
大体时间：From one week before until a maximum of 2 months after beginning GLP-1RA treatment. This timeframe will restart if their dosage is increased.
|
Milk production rate (in grams per hour) will be assessed using a standardized milk expression protocol.
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From one week before until a maximum of 2 months after beginning GLP-1RA treatment. This timeframe will restart if their dosage is increased.
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Milk macronutrient composition
大体时间：From one week before until a maximum of 2 months after beginning GLP-1RA treatment. This timeframe will restart if the dosage is increased.
|
Milk macronutrient composition will be assessed using the Miris Human Milk Analyzer.
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From one week before until a maximum of 2 months after beginning GLP-1RA treatment. This timeframe will restart if the dosage is increased.
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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 (估计的)
2026年7月1日
初级完成 (估计的)
2028年6月1日
研究完成 (估计的)
2028年6月1日
研究注册日期
首次提交
2026年7月17日
首先提交符合 QC 标准的
2026年7月17日
首次发布 (实际的)
2026年7月22日
研究记录更新
最后更新发布 (实际的)
2026年7月22日
上次提交的符合 QC 标准的更新
2026年7月17日
最后验证
2026年7月1日
更多信息
与本研究相关的术语
其他研究编号
- 26-1234
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
De-identified individual participant data and leftover biological samples may be deposited into public or restricted-access data banks, or distributed directly to external researchers for future study without additional participant consent.
Data and specimens will be stripped of names and direct identifiers prior to sharing or repository submission.
Recipients of these assets may include researchers working at other universities, government agencies, or private industry.
Future research utilizing this data may focus on obesity, weight loss treatments, or other related medical conditions.
While data are de-identified to protect privacy, absolute protection against re-identification cannot be guaranteed, and broad data sharing may involve unknown risks.
IPD 共享时间框架
Data will be made available following the primary completion of the study and publication of main results, or upon deposition into designated data repositories.
IPD 共享访问标准
Data and leftover samples will be accessible to qualified researchers across academic, government, and private industry sectors.
Access to data housed in restricted data banks will be governed by the specific repository's data access committee.
Direct requests to the study investigators will require a scientifically valid proposal.
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
在美国制造并从美国出口的产品
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.