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Pregnancy Exposure Registry for Tysabri®

TYSABRI® Pregnancy Exposure Registry

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00472992
Enrollment
376
Registered
2007-05-14
Start date
2007-01-31
Completion date
2012-07-31
Last updated
2014-08-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Crohn's Disease, Multiple Sclerosis, Pregnancy, Prenatal Exposure

Keywords

Pregnancy, TYSABRI

Brief summary

The primary objective of the Registry was to evaluate the outcomes of pregnancy in women with Multiple Sclerosis (MS) or Crohn's Disease (CD) who were exposed to TYSABRI® at any time within 90 days prior to first day of Last Menstrual Period (LMP) or during pregnancy.

Detailed description

This study was conducted in coordination with the TYSABRI® Global Observational Program in Safety (TYGRIS) observational study in the United States (US), Canada, and Rest of World (ROW). The Coordinating Center (CC) monitored participants throughout their pregnancies and monitored the infants until 8 to 12 weeks of age in the US and Canada, and within 4 weeks after the Estimated Date of Delivery (EDD) in the ROW.

Interventions

None listed

Sponsors

Elan Pharmaceuticals
CollaboratorINDUSTRY
Biogen
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: Females who become pregnant while they are taking TYSABRI® as part of the TYGRIS program, during a clinical trial with TYSABRI® that is sponsored by Biogen-Idec, or in the post-marketing setting may enroll in this Registry, as follows: 1. Documentation that the patient was exposed to TYSABRI® within 90 days prior to first day of Last Menstrual Period (LMP) or during pregnancy. (If exposure dates are unknown, the reporter must be able to specify or estimate trimester of exposure). 2. The outcome of the pregnancy must not be known at the time of enrollment. For pregnancies for which the outcomes are known at the time of enrollment, the information will be collected as retrospective reports and analyzed separately. 3. For US patients, verbal informed consent must be collected at the time of enrollment. The Coordinating Center (CC) obtains verbal informed consent (if verbal consent has not already been obtained by the physician). The CC then mails the patient a Release of Medical Information form to sign and return. If the patient is a minor, verbal consent must be obtained from the parent or legal guardian and verbal assent must be obtained from the patient. 4. For Canadian patients, a written informed consent must be collected by the TYGRIS investigator at the time of enrollment. A Release of Medical Information form will also be signed by the patient and returned to the CC. NOTE: Other protocol defined Inclusion/

Exclusion criteria

may apply.

Design outcomes

Primary

MeasureTime frame
Number of Live Births4 weeks after the estimated date of delivery
Number of Live Births with Birth Defects8-12 weeks post-birth
Number of spontaneous abortions, fetal losses including stillbirths, and ectopic pregnanciesApproximately 9 months
Number of elective or therapeutic pregnancy terminationsApproximately 9 months

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 12, 2026