Emgality in Breastmilk for Migraine

This study is looking at how much Emgality (galcanezumab), a medication for migraine, gets into breastmilk. It also wants to understand how babies are doing (their growth, development, and any issues like constipation or colic) when their mothers are taking Emgality and breastfeeding. You can join if you are a woman between 18 and 45 years old, have migraines, have recently given birth without complications, and are planning to take Emgality while nursing. The study will follow 30 women and their babies. The main goal is to measure the amount of Emgality in your breastmilk at 12 months postpartum.

Study design
This is an observational study involving 30 women. It is not specified if it is blinded or randomized.
What's involved
You will provide serial milk samples and complete questionnaires about your infant at 6 and 12 months postpartum. You will also sign a release for your infant's health records.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for 12 months postpartum to measure Emgality concentration in breastmilk and infant outcomes.

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NCT06085144

Emgality for Migraine in Breastmilk

Recruiting
Not specifiedAges 18–45Observational
University of California, San Francisco
~30 participants
Updated 2026-08-11 on ClinicalTrials.gov
What's tested:Galcanezumab

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Determine emgality concentration in mature breastmilk
Measured over 12 months
+6 more outcomes measured
Migraine
1 sites across 1 states
California1
  • Riley Bove, MD, MSc · PRINCIPAL_INVESTIGATOR · University of California, San Francisco

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Eligibility criteria

Inclusion

Female
Childbearing age (18-45)
Established diagnosis of migraine
Status post uncomplicated delivery (no long-term maternal complications)
No prolonged (\>3 night) NICU stay for infant
Between 14 days and 9 months postpartum, and still nursing, at the time of enrollment
Planning to receive galcanezumab postpartum
Suitable candidate to receive galcanezumab postpartum, at discretion of prescribing clinician

Exclusion

Contraindications to breastfeeding, such as prior surgery or infant contraindications
Contraindications to galcanezumab or insurance coverage
Use of gepants
Moderately Severe or Severe Depression as established by the PHQ9 screen (i.e. score 15 or above)
Pregnant or planning pregnancy in the coming 6M
Patients with severe mastitis will not be enrolled; should mastitis occur during the study, this will be included as a covariate and results analyzed accordingly
Patients of infants with severe medical issues identified in the health record (developmental issues, delivery issues, concomitant medications)
  • Determine emgality concentration in mature breastmilk12 months

    Levels of galcanezumab (μg/mL) in the breastmilk of women at the selected timepoints before and after each treatment (24H pre, 24H post, 7D post, 28D post). For the third treatment, only 7D post will be collected. This outcome will be measured by breastmilk concentration (μg/mL).

  • Determine average emgality concentration in mature breastmilk12 months

    Levels of galcanezumab (μg/mL) in the breastmilk of women at the selected timepoints before and after each treatment (24H pre, 24H post, 7D post, 28D post). For the third treatment, only 7D post will be collected. This outcome will be measured by average breastmilk concentration (CAVE, determined using pharmacokinetic methods).

  • Determine maximum emgality concentration in mature breastmilk12 months

    Levels of galcanezumab (μg/mL) in the breastmilk of women at the selected timepoints before and after each treatment (24H pre, 24H post, 7D post, 28D post). For the third treatment, only 7D post will be collected. This outcome will be measured by maximum concentration of galcanezumab in breastmilk (CMAX).

  • Determine average emgality dose to infants through mature breastmilk in a 24-hour period12 months

    Levels of galcanezumab (μg/mL) in the breastmilk of women at the selected timepoints before and after each treatment (24H pre, 24H post, 7D post, 28D post). For the third treatment, only 7D post will be collected. This outcome will be measured by absolute average galcanezumab dose to the infant in a 24-hour period.

  • Determine maximum emgality dose to infants through mature breastmilk in a 24-hour period12 months

    Levels of galcanezumab (μg/mL) in the breastmilk of women at the selected timepoints before and after each treatment (24H pre, 24H post, 7D post, 28D post). For the third treatment, only 7D post will be collected. This outcome will be measured by maximum galcanezumab dose to the infant in a 24-hour period.

  • Determine average relative infant dose of emgality in mature breastmilk12 months

    Levels of galcanezumab (μg/mL) in the breastmilk of women at the selected timepoints before and after each treatment (24H pre, 24H post, 7D post, 28D post). For the third treatment, only 7D post will be collected. This outcome will be measured by average relative infant dose (RIDAVE). The investigators hypothesize that given that galcanezumab is an IgG mAb, it will similarly show very low concentrations, and acceptable relative infant dose (RID) (\<1%).

  • Determine maximum relative infant dose of emgality in mature breastmilk12 months

    Levels of galcanezumab (μg/mL) in the breastmilk of women at the selected timepoints before and after each treatment (24H pre, 24H post, 7D post, 28D post). For the third treatment, only 7D post will be collected. This outcome will be measured by maximum relative infant dose (RIDMAX). The investigators hypothesize that given that galcanezumab is an IgG mAb, it will similarly show very low concentrations, and acceptable relative infant dose (RID) (\<1%).