A Study to Assess the Pregnancy Outcome in Women Exposed to Dayvigo® During Pregnancy Compared to an Unexposed Control Population

Running, not enrolling

Conditions studied: Sleep Initiation and Maintenance Disorders, Pregnancy

In brief

The primary purpose of the study is to compare the occurrence of major congenital malformations (MCMs) among live births between women with insomnia who are exposed to Dayvigo during the 1st trimester of pregnancy and women with insomnia who are not exposed to any prescription insomnia drugs at any time during the pregnancy and to compare the occurrence of MCMs among live births between women with insomnia who are exposed to Dayvigo during the 1st trimester of pregnancy and women with insomnia who are exposed to a prescription insomnia drug other than Dayvigo during the 1st trimester of pregnancy.

Key facts

Study ID

NCT06744673

Run by

Eisai Inc.

People needed

861

Starts

2025-01-03

Expected to finish

2025-12-30

Last updated by the study team

2025-06-19

Who can join

Age: 16 and older, up to 49. Sex: female. Healthy volunteers: accepted.

You may qualify if…

• Must be female.
• Must be 16 to 49 years of age
• Has a clinically recognized pregnancy that overlaps with the data collection period between 01 Jun 2020 and the end of the data collection period
• Has continuous medical and pharmacy benefit coverage for a minimum of 6 months (Baseline Period) before the estimated date of conception and through the date of pregnancy outcome.
• Cohort A:
• Exposed to at least 1 dose of Dayvigo at any time from 10 days after the LMP, that is, approximately 4 days prior to the estimated DOC, defined as 14 days after the LMP, based on the product's half-life, until the pregnancy outcome
• Has a diagnosis of insomnia recorded in her electronic healthcare data within 6 months before the estimated DOC, insomnia defined as an International Classification of Disease (ICD) 10-CM code G47.0x Insomnia or ICD 10 CM code F51.0x Insomnia not due to a substance or known physiological condition or Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) code 780.52. Or if the first exposure to Dayvigo occurs after the DOC, then must have a diagnostic code for insomnia prior to or on the first exposure to this drug.
• Cohort B:
• Exposed to at least 1 dose of prescription medication for insomnia other than Dayvigo from 5 times the product's half-life prior to the estimated DOC until the pregnancy outcome (that is, any trimester)
• Has a diagnosis of insomnia recorded in her electronic healthcare data within 6 months before the estimated DOC, insomnia defined as an ICD 10-CM code G47.0x Insomnia or ICD 10 CM code F51.0x Insomnia not due to a substance or known physiological condition or DSM-5 code 780.52. Or if the first exposure to the prescription insomnia medication occurs after the DOC, then must have a diagnostic code for insomnia prior to or on the first exposure to this drug
• Cohort C:
• Not exposed to any prescription medication for the treatment of insomnia during pregnancy that is, from 5 times the product's half-life prior to the estimated DOC until the pregnancy outcome (that is, any trimester). NB: May be exposed during pregnancy to other drugs (that is, not for insomnia), but only provided that these are not associated with potential or known teratogenicity
• Has a diagnosis of insomnia recorded in her electronic healthcare data within 6 months before the estimated DOC, insomnia defined as an ICD 10-CM code G47.0x Insomnia or ICD 10 CM code F51.0x Insomnia not due to a substance or known physiological condition or DSM-5 code 780.52

You may not qualify if…

• Identified pregnancies with exposure to known teratogens during pregnancy, that is, from 14 days after the LMP to pregnancy outcome (any trimester) or to dual orexin receptor antagonists other than lemborexant (this includes, but it is not limited to, exclusion of suvorexant and daridorexant) from 5 times the product's half-life prior to the estimated DOC until the pregnancy outcome (any trimester) will be excluded
• Pregnancies not associated with a known pregnancy outcome.

Where it is running

• Eisai Trial Site #1 — Nutley, New Jersey, United States

Full record on ClinicalTrials.gov

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