deltatrials
Recruiting OBSERVATIONAL NCT03511118

Pharmacokinetics and Safety of Commonly Used Drugs in Lactating Women and Breastfed Infants

Sponsor: Duke University

Updated 32 times since 2018 Last updated: Apr 23, 2026 Started: Oct 4, 2018 Primary completion: Jul 23, 2027 Completion: Jul 31, 2028
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT03511118, this observational or N/A phase trial focuses on Breastfed Infants of Mothers on Select DOI and Lactating Women on Select DOI and remains actively recruiting participants. Sponsored by Duke University, it has been updated 32 times since 2018, reflecting substantial change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Study Description(click to expand)

The purpose of this study is to understand if the study drugs of interest are found in breastmilk and how much; to estimate the amount of drug that is consumed by breastfed infants and what effect this may have on infants; and to share what we learn with other researchers. The study drugs of interest have Food and Drug Administration (FDA) approval, but there is little or no information about the amount of drug found in the breastmilk of mothers who take them; the amount of drug that may be transferred to their infant's through breastmilk; or the effects this transfer may have on their infants. During this study we will ask to collect breastmilk and blood from mothers, and blood from infants, to measure the amount of study drug of interest in these body fluids. Results from this study will help researchers better understand how much of the study drug of interest is in your blood and breastmilk, and how much of the study drug of interest may be in your infant's blood because of breastfeeding.

The purpose of this study is to understand if the study drugs of interest are found in breastmilk and how much; to estimate the amount of drug that is consumed by breastfed infants and what effect this may have on infants; and to share what we learn with other researchers. The study drugs of interest have Food and Drug Administration (FDA) approval, but there is little or no information about the amount of drug found in the breastmilk of mothers who take them; the amount of drug that may be transferred to their infant's through breastmilk; or the effects this transfer may have on their infants. During this study we will ask to collect breastmilk and blood from mothers, and blood from infants, to measure the amount of study drug of interest in these body fluids. Results from this study will help researchers better understand how much of the study drug of interest is in your blood and breastmilk, and how much of the study drug of interest may be in your infant's blood because of breastfeeding.

Status Flow

~May 2018 – ~Aug 2018 · 3 months · monthly snapshot~Aug 2018 – ~Nov 2018 · 3 months · monthly snapshot~Nov 2018 – ~Jan 2019 · 2 months · monthly snapshot~Jan 2019 – ~Feb 2019 · 31 days · monthly snapshot~Feb 2019 – ~Mar 2019 · 28 days · monthly snapshot~Mar 2019 – ~Apr 2019 · 31 days · monthly snapshot~Apr 2019 – ~Jun 2019 · 2 months · monthly snapshot~Jun 2019 – ~Jul 2019 · 30 days · monthly snapshot~Jul 2019 – ~Oct 2019 · 3 months · monthly snapshot~Oct 2019 – ~Nov 2019 · 31 days · monthly snapshot~Nov 2019 – ~Feb 2020 · 3 months · monthly snapshot~Feb 2020 – ~Jun 2020 · 4 months · monthly snapshot~Jun 2020 – ~Nov 2020 · 5 months · monthly snapshot~Nov 2020 – ~Jan 2021 · 2 months · monthly snapshot~Jan 2021 – ~Apr 2021 · 3 months · monthly snapshot~Apr 2021 – ~Sep 2021 · 5 months · monthly snapshot~Sep 2021 – ~Oct 2021 · 30 days · monthly snapshot~Oct 2021 – ~Dec 2021 · 2 months · monthly snapshot~Dec 2021 – ~Feb 2022 · 2 months · monthly snapshot~Feb 2022 – ~Jul 2022 · 5 months · monthly snapshot~Jul 2022 – ~Sep 2022 · 2 months · monthly snapshot~Sep 2022 – ~Aug 2023 · 11 months · monthly snapshot~Aug 2023 – ~Sep 2023 · 31 days · monthly snapshot~Sep 2023 – ~Feb 2024 · 5 months · monthly snapshot~Feb 2024 – ~Jul 2024 · 5 months · monthly snapshot~Jul 2024 – ~Aug 2024 · 31 days · monthly snapshot~Aug 2024 – ~Sep 2024 · 31 days · monthly snapshot~Sep 2024 – ~Jan 2025 · 4 months · monthly snapshot~Jan 2025 – ~Sep 2025 · 8 months · monthly snapshot~Sep 2025 – ~Feb 2026 · 5 months · monthly snapshot~Feb 2026 – ~Apr 2026 · 3 months · monthly snapshotApr 28, 2026 – present · 45 days · daily API

Change History

32 versions recorded
  1. Apr 28, 2026 — Present [daily]

    Recruiting

  2. Feb 2026 — Apr 2026 [monthly]

    Recruiting

  3. Sep 2025 — Feb 2026 [monthly]

    Recruiting

  4. Jan 2025 — Sep 2025 [monthly]

    Recruiting

  5. Sep 2024 — Jan 2025 [monthly]

    Recruiting

Show 27 earlier versions
  1. Aug 2024 — Sep 2024 [monthly]

    Recruiting

  2. Jul 2024 — Aug 2024 [monthly]

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  3. Feb 2024 — Jul 2024 [monthly]

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  4. Sep 2023 — Feb 2024 [monthly]

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  5. Aug 2023 — Sep 2023 [monthly]

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  6. Sep 2022 — Aug 2023 [monthly]

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  7. Jul 2022 — Sep 2022 [monthly]

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  8. Feb 2022 — Jul 2022 [monthly]

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  9. Dec 2021 — Feb 2022 [monthly]

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  10. Oct 2021 — Dec 2021 [monthly]

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  11. Sep 2021 — Oct 2021 [monthly]

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  12. Apr 2021 — Sep 2021 [monthly]

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  13. Jan 2021 — Apr 2021 [monthly]

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  14. Nov 2020 — Jan 2021 [monthly]

    Recruiting

  15. Jun 2020 — Nov 2020 [monthly]

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  16. Feb 2020 — Jun 2020 [monthly]

    Recruiting

  17. Nov 2019 — Feb 2020 [monthly]

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  18. Oct 2019 — Nov 2019 [monthly]

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  19. Jul 2019 — Oct 2019 [monthly]

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  20. Jun 2019 — Jul 2019 [monthly]

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  21. Apr 2019 — Jun 2019 [monthly]

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  22. Mar 2019 — Apr 2019 [monthly]

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  23. Feb 2019 — Mar 2019 [monthly]

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  24. Jan 2019 — Feb 2019 [monthly]

    Recruiting

  25. Nov 2018 — Jan 2019 [monthly]

    Recruiting

    Status: Not Yet RecruitingRecruiting

  26. Aug 2018 — Nov 2018 [monthly]

    Not Yet Recruiting

  27. May 2018 — Aug 2018 [monthly]

    Not Yet Recruiting

    First recorded

Eligibility Summary

Over half of women in the US who are breastfeeding their infants take prescription drugs. You are being asked to participate in this study because you are breastfeeding your infant and are currently taking, as part of your medical care, at least one of the drugs we are studying. We are interested in studying drugs commonly prescribed to women who are breastfeeding so we can learn more about the amount of drug that is transferred to breastmilk and estimate how much of drug that is consumed by breastfed infants.

Contact Information

Sponsor contact:
  • Duke University
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
  • The Emmes Company, LLC
Data source: ClinicalTrials.gov

For direct contact, visit the study record on ClinicalTrials.gov .